数控转塔冲床模具的使用和维护说明
<P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>当前</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>在板金冲压加工领域</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">数控转塔冲床以其冲压速度快、加工精度高、<SPAN class=hotword><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><I><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana" lang=EN-US><SPAN lang=EN-US><A href="#">模具</A></I><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">通用性强、产品灵活多样等特点</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>得到广泛应用。数控转塔冲床所使用的模具</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>由于其精度及质量要求高</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>冲压速度快。</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt"><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US> <SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>用户在选购某种品质的模具后</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>其使用和维护的水平</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">直接影响到工件的加工质量和模具的使用寿命。模具也是控制<SPAN class=hotword><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><I><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana" lang=EN-US><SPAN lang=EN-US>设备</I><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">运行成本的重要环节。因此</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>学习和掌握这方面的一些知识并运用到实际中</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>对提高效益、降低成本</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">也会起到重要的作用。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 下文论述数控转塔冲床模具在使用和维护中应遵循的一些<SPAN class=hotword><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><I><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana" lang=EN-US><SPAN lang=EN-US>技术</I><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">要点</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>并针对实际问题提出相应的解决办法</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">可能对用户具有良好的指导作用。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 一、保证最佳的模具间隙<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> <A href="#">模具</A>间隙是指冲头进入下模中</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>两侧的间隙之和。它与板厚、材质以及冲压工艺有关</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>选用合适的模具间隙</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>能够保证良好的冲孔质量</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>减少毛刺和塌陷</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>保持板料平整</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>有效防止带料</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">延长模具寿命。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 通过检查冲压废料的情况</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>可以判定模具间隙是否合适。如果间隙过大</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>废料会出现粗糙起伏的断裂面和较小的光亮面。间隙越大</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>断裂面与光亮面形成的角度就越大</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>冲孔时会形成卷边和断裂</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>甚至出现一个薄缘突起。反之</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>如果间隙过小</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">废料会出现小角度断裂面和较大的光亮面。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 当进行开槽、步冲、剪切等局部冲压时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>侧向力将使冲头偏转而造成单边间隙过小</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>有时刃边偏移过大会刮伤下模</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">造成上下模的快速磨损。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 模具以最佳间隙冲压时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>废料的断裂面和光亮面具有相同的角度</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>并相互重合</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>这样可使冲裁力最小</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">冲孔的毛刺也很小。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 二、适时刃磨可有效延长模具的使用寿命<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 如果工件出现过大的毛刺或冲压时产生异常噪音</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>可能是模具钝化了。检查冲头及下模</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>当其刃边磨损产生半径约</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>0.10mm<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>的圆弧时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">就要刃磨了。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 实践表明</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>经常进行微量的刃磨而不是等到非磨不可时再刃磨</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>不仅会保持良好的工件质量</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>减小冲裁力</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">而且可使模具寿命延长一倍以上。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 除了知道模具何时刃磨之外</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>掌握正确的刃磨方法尤其重要。模具刃磨规程如下</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>:<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> </FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>1)<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>刃磨时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>将冲头竖直夹持于平面磨床磁性卡盘的</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>v<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>型槽或夹具内</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>每次磨削量为</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>0.03~0.05mm,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>重复磨削直至冲头锋利</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>最大磨削量一般为</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>0.1~0.3mm<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> </FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>2)<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>使用烧结氧化铝砂轮</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>硬度</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>d~j,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>磨粒大小</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>46~60,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">最好选适用于高速钢磨削的砂轮。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> </FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>3)<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>当磨削力大或模具接近砂轮时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>加冷却液可防止模具过热而开裂或退火</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">应按照制造商要求选用优质多用途冷却液。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> </FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>4)<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>砂轮向下进刀量</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>0.03~0.08mm,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>横向进给量</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>0.13~0.25mm,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>横向进给速率</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>2.5~3.8m/min<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> </FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>5)<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>刃磨后</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>用油石打磨刃口</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>去除毛刺</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>并磨出半径</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>0.03~0.05mm<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>的圆角</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">可以防止刃口崩裂。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> </FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>6)<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>冲头去磁处理并喷上润滑油</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">防止生锈。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 三、消除和减少粘料的方法<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 由于冲压时的压力和热量</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>会将板料的细小颗粒粘结于冲头表面</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>导致冲孔质量差。去除粘料可用细油石打磨</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>打磨方向应与冲头运动的方向相同</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>这样光后会避免进一步粘料的产生。</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt"><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US> <SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>不要用粗纱布等打磨</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>以免冲头表面更粗糙</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">更容易出现粘料。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 合理的模具间隙、良好的冲压工艺</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>以及必要的板料润滑</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>都会减少粘料的产生。防止过热</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>一般采用润滑的方式</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>这样会减少摩擦。如果无法润滑或出现废料回弹</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>可采取以下方法</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>:<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 交替使用多个相同尺寸的冲头轮流冲压</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">可使其在被重复使用之前有较长的冷却时间。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 将过热模具停歇使用。通过编程控制换模</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>中断其长时间重复工作</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">或降低其冲压频率。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 四、冲很多孔时防止板料变形的措施<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 如果在一张板上冲很多孔</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>由于冲切应力的累积板材就不能保持平整。每次冲孔时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>孔周边的材料会向下变形</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>造成板料上表面出现拉应力</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>而下表面则出现压应力。对于少量的冲孔</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>其影响并不明显</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>但当冲孔数量增加时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>拉、压应力在某处累积</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">直至材料变形。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 消除此类变形的一个方法是</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>:<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>先每隔一个孔冲切</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>然后返回冲切剩余的孔。这样虽然也会产生应力</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>但却缓解了在同一方向顺序冲压时的应力累积</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>也会使前后两组孔的应力相互抵消</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">从而防止板料的变形。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 五、尽量避免冲切过窄条料<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 当模具用于冲切宽度小于板材厚度的板料时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>会因侧向力作用而使冲头弯曲变形</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>令一侧的间隙过小或磨损加剧</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>严重时会刮伤下模</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">使上下模同时损坏。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 建议不要步冲宽度小于</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>2.5<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>倍板材厚度的窄条板料。剪切过窄条料时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>板料会倾向弯入下模开口中</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>而不是被完全剪掉</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>甚至会楔入冲模的侧面。如果无法避免上述情况</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">建议使用退料板对冲头有支撑作用的全导向模具。六、冲头的表面硬化及其适用范围<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 虽然热处理和表面涂层可改善冲头表面特性</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>但并不是解决冲压问题和延长模具寿命的一般方法。一般地说</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>涂层提高了冲头表面硬度并使侧面的润滑性得到改善</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>但在大吨位、硬质材料冲压时</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>这些优点在大约</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>1000<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">次冲压后就消失了。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 六、针对以下情况可使用表面硬化的冲头</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>:<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 冲软或粘性的材料</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>(<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>如铝</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>).<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 冲薄的研磨性材料</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>(<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>如玻璃环氧片</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>).<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 冲薄的硬质材料</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>(<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>如不锈钢</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>).<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 频繁地步冲</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>.<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 非正常润滑的情况。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 表面硬化通常采用镀钛、渗氮等方法</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>其表面硬化层为厚度</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>12~60μm<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>的分子结构</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>它是冲头基体的一部份</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">而并非仅是涂层。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 表面硬化的模具可按通常的方式刃磨。</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt"><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US> <SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>通过表面硬化会降低模具在冲不锈钢板时的磨损</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>但并不能延长其使用寿命</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>而适当润滑、及时刃磨以及按规程操作等</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">却是有效的方法。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 七、冲床模位对中性不好时的检修<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 如果冲床模位的对中性不好</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>造成模具快速钝化</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>工件加工质量差</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>可就以下几点检修</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>:<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"> 检查<SPAN class=hotword><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><I><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana" lang=EN-US><SPAN lang=EN-US>机床</I><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">的水平情况</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>必要时重新调整</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>.<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 检查并润滑转盘上的模孔及导向键</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>如有损伤及时修复</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>.<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 清洁转盘的下模座</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>以便下模准确安装</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>并检查其键或键槽的磨损情况</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>必要时更换</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>.<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 使用专用芯棒校准模具工位</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<FONT face=宋体><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">如有偏差及时调整。<SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></FONT></P><P style="LINE-HEIGHT: 15.6pt"><SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体> 上述内容是对通常的情形而言</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>鉴于冲床及模具的具体类型规格有所不同</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>用户还要结合实际去认识和总结经验</FONT><SPAN style="FONT-FAMILY: Verdana; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US>,<SPAN style="COLOR: #333333; FONT-SIZE: 9.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana"><FONT face=宋体>发挥出模具的最佳使用性能。</FONT><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #333333; FONT-SIZE: 9.5pt" lang=EN-US><o:p></o:p></P>
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