树脂磨具的结构和树脂磨具的特征及其标记
<h2 style=\"margin:auto 0cm\"><font face=\"宋体\">树脂磨具的结构和树脂磨具的特征及其标记</font></h2><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24pt;mso-char-indent-count:2.0\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\" size=\"3\">树脂磨具是利用树脂做结合剂，将磨料粘结在一起形成具有不同形状的磨削工具。树脂磨具属于固结磨具之一。根据树脂磨具的开头可分为砂轮、砂瓦、磨石、磨头、抛磨块。</font></span></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24pt;mso-char-indent-count:2.0\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\" size=\"3\">磨具是由磨粒、结合剂、辅助材料和气孔四要素所构成的。</font></span></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24.1pt;mso-char-indent-count:2.0\"><font size=\"3\"><font face=\"宋体\"><strong><span lang=\"EN-US\" style=\"mso-bidi-font-weight:normal\">1</span></strong><strong><span style=\"font-family:宋体;mso-bidi-font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-bidi-font-weight:normal\">、树脂磨具的结构</span></strong></font><span lang=\"EN-US\"><p></p></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24pt;mso-char-indent-count:2.0\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\';mso-bidi-font-family:宋体\"></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">（</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">1</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">）磨粒</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24pt;mso-char-indent-count:2.0\"><font face=\"宋体\"><font size=\"3\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\">磨粒的切削刃同车刀、铣刀的刀刃一样，是</span><span lang=\"EN-US\" style=\"font-family:\'times new roman\';mso-bidi-font-family:宋体\"><a href=\"http://www.hj9411.com/\"><span lang=\"EN-US\" style=\"font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><span lang=\"EN-US\">磨削</span></span></a></span></font><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font size=\"3\">主导因素。磨具实际上就是磨粒的集合体，能进行切除工件表面的切屑，达到磨削的目的。</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:21.75pt\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\';mso-bidi-font-family:宋体\"></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">（</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">2</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">）结合剂</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:21.75pt\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\" size=\"3\">结合剂将磨粒与辅助材料粘结在——起，经过固化，成为具有一定形状和强度的磨具。并且，磨削过程中，磨粒的切削刃尖端钝化，磨削力增加。当磨削力超过磨粒的强度或结合剂的把持力时，磨粒出现破碎或脱落现象。生成新的切削刃，产生自锐作用。</font></span></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">（</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">3</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">）辅助材料</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">为了改善磨具某些性能，如增加强度，提高磨削性等，以适应某些特殊磨削加工需要。</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:21.75pt\"><font size=\"3\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">（</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">4</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">）气孔</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:21.75pt\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\" size=\"3\">气孔起排屑或冷却作用。</font></span></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24.1pt;mso-char-indent-count:2.0\"><font size=\"3\"><font face=\"宋体\"><strong><span lang=\"EN-US\" style=\"mso-bidi-font-weight:normal\">2</span></strong><strong><span style=\"font-family:宋体;mso-bidi-font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\';mso-bidi-font-weight:normal\">、树脂磨具的特征及其标记</span></strong></font><span lang=\"EN-US\"><p></p></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24pt;mso-char-indent-count:2.0\"><font size=\"3\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">根据国家标准</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">GB/T 2484</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">—</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">1994</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">和</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">GB/T 2485</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">—</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">1997</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">及国际标准</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">ISO 525</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">：</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">1986</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">《固</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt\"><font size=\"3\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">结磨具</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">总则</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">名称、牌号和标记、外径尺寸范围和公差》，对普通磨具形状、磨料粒度、硬度、组织、结合剂的代号和产品标记进行了规定。从而直接反映了磨具的基本性能，便于使用人员加以选择应用，充分发挥其效能。</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">普通磨具的特征及标记顺序为：</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">形状代号、尺寸（外径×厚度×孔径）、磨料、粒度、硬度、组织号、结合剂、最高工作速度。</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24pt;mso-char-indent-count:2.0\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\';mso-bidi-font-family:宋体\"></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">标记示例</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt;text-indent:24pt;mso-char-indent-count:2.0\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\';mso-bidi-font-family:宋体\"></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">例如：平形砂轮、外径</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">300mm</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">、厚度</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">50mm</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">、孔径</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">75mm</span><font face=\"宋体\"><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\">、</span><span lang=\"EN-US\" style=\"font-family:\'times new roman\';mso-bidi-font-family:宋体\"><a href=\"http://www.hj9411.com/\"><span lang=\"EN-US\" style=\"font-family:宋体;mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><span lang=\"EN-US\">棕刚玉</span></span></a></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\">、粒度</span></font><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">60</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">、硬度为</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">L</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">、</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">5</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">号组织、树脂结合剂、最高：工作速度</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">35m/s</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">。</font></span></font></p><p class=\"MsoNormal\" style=\"margin:0cm 0cm 0pt\"><font size=\"3\"><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\"><span style=\"mso-spacerun:yes\"> </span></span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">产品标记为：</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">1-300</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">×</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">50</span><span style=\"mso-ascii-font-family:\'times new roman\';mso-hansi-font-family:\'times new roman\'\"><font face=\"宋体\">×</font></span><span lang=\"EN-US\" style=\"font-family:\'times new roman\'\">75-A 60 L 5 B-35m/s</span></font></p>
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