常用耐热铸铁牌号
<STRONG>1、高硅耐热铸铁:</STRONG>含硅5-6%,其工作温度可稳定在850度左右,但其机械性能低,只能制造受力较低的耐热零件。其成分如下表:<BR><FONT face=Arial> <TABLE cellSpacing=0 cellPadding=0 border=1>
<TBODY>
<TR>
<TD width=108 rowSpan=2>
<DIV align=center>名 称</DIV></TD>
<TD width=72 rowSpan=2>
<DIV align=center>牌 号</DIV></TD>
<TD vAlign=top width=372 colSpan=6>
<DIV align=center>化 学 成 分(%)</DIV></TD></TR>
<TR>
<TD width=72>
<DIV align=center>C</DIV></TD>
<TD width=72>
<DIV align=center>Si</DIV></TD>
<TD width=48>
<DIV align=center>Mn</DIV></TD>
<TD width=60>
<DIV align=center>P</DIV></TD>
<TD width=60>
<DIV align=center>S</DIV></TD>
<TD width=60>
<DIV align=center>Cr</DIV></TD></TR>
<TR>
<TD vAlign=top width=108>
<DIV>中硅耐热铸铁</DIV></TD>
<TD width=72>
<DIV align=center>RTSi-5.5</DIV></TD>
<TD width=72>
<DIV align=center>2.2-3.0</DIV></TD>
<TD width=72>
<DIV align=center>5.0-6.0</DIV></TD>
<TD width=48>
<DIV align=center><1.0</DIV></TD>
<TD width=60>
<DIV align=center><0.2</DIV></TD>
<TD width=60>
<DIV align=center><0.12</DIV></TD>
<TD width=60>
<DIV align=center>0.5-0.9</DIV></TD></TR>
<TR>
<TD vAlign=top width=108>
<DIV>含铬耐热铸铁</DIV></TD>
<TD width=72>
<DIV align=center>RTCr-0.8</DIV></TD>
<TD width=72>
<DIV align=center>2.8-3.6</DIV></TD>
<TD width=72>
<DIV align=center>1.5-2.5</DIV></TD>
<TD width=48>
<DIV align=center><1.0</DIV></TD>
<TD width=60>
<DIV align=center><0.3</DIV></TD>
<TD width=60>
<DIV align=center><0.12</DIV></TD>
<TD width=60>
<DIV align=center>0.5-1.1</DIV></TD></TR>
<TR>
<TD vAlign=top width=108>
<DIV>含铬耐热铸铁</DIV></TD>
<TD width=72>
<DIV align=center>RTCr-1.5</DIV></TD>
<TD width=72>
<DIV align=center>2.8-3.6</DIV></TD>
<TD width=72>
<DIV align=center>1.7-2.7</DIV></TD>
<TD width=48>
<DIV align=center><1.0</DIV></TD>
<TD width=60>
<DIV align=center><0.3</DIV></TD>
<TD width=60>
<DIV align=center><0.12</DIV></TD>
<TD width=60>
<DIV align=center>1.2-1.9</DIV></TD></TR></TBODY></TABLE></FONT><FONT face=Arial> <BR><STRONG>2、高铝耐热铸铁:</STRONG>高铝耐热铸铁耐热性好(900度),可制各种加热炉的炉底板,但机械性能很差,且铝易氧化并形成夹渣。其成分如下表:<BR></FONT><FONT face=Arial>
<TABLE cellSpacing=0 cellPadding=0 border=1>
<TBODY>
<TR>
<TD width=108 rowSpan=2>
<DIV align=center>名 称</DIV></TD>
<TD vAlign=top width=444 colSpan=6>
<DIV align=center>化 学 成 分(%)</DIV></TD></TR>
<TR>
<TD width=72>
<DIV align=center>C</DIV></TD>
<TD width=84>
<DIV align=center>Si</DIV></TD>
<TD width=72>
<DIV align=center>Mn</DIV></TD>
<TD width=60>
<DIV align=center>P</DIV></TD>
<TD width=72>
<DIV align=center>S</DIV></TD>
<TD width=84>
<DIV align=center>AL</DIV></TD></TR>
<TR>
<TD vAlign=top width=108>
<DIV>中铝耐热铸铁</DIV></TD>
<TD width=72>
<DIV align=center>2.5-3.2</DIV></TD>
<TD width=84>
<DIV align=center>1.6-2.3</DIV></TD>
<TD width=72>
<DIV align=center>0.6-0.8</DIV></TD>
<TD width=60>
<DIV align=center> </DIV></TD>
<TD width=72>
<DIV align=center> </DIV></TD>
<TD width=84>
<DIV align=center>5.5-7.0</DIV></TD></TR>
<TR>
<TD vAlign=top width=108>
<DIV>高铝耐热铸铁</DIV></TD>
<TD width=72>
<DIV align=center>1.2-2.0</DIV></TD>
<TD width=84>
<DIV align=center>1.3-2.0</DIV></TD>
<TD width=72>
<DIV align=center><0.7</DIV></TD>
<TD width=60>
<DIV align=center><0.4</DIV></TD>
<TD width=72>
<DIV align=center><0.03</DIV></TD>
<TD width=84>
<DIV align=center>20-24</DIV></TD></TR></TBODY></TABLE></FONT><FONT face=Arial> <BR><STRONG>3、高铬耐热铸铁:</STRONG>一般来说,铬加入量为0.5-2%,工作温度愈高,则加入量应愈高,含铬量为26-30%时,耐热温度为1000度,含铬量为32-36%时,耐热温度为1150度,且机械性能保持较高。<BR></FONT><FONT face=Arial>
<TABLE cellSpacing=0 cellPadding=0 border=1>
<TBODY>
<TR>
<TD width=108 rowSpan=2>
<DIV align=center>名 称</DIV></TD>
<TD vAlign=top width=444 colSpan=6>
<DIV align=center>化 学 成 分(%)</DIV></TD></TR>
<TR>
<TD width=72>
<DIV align=center>C</DIV></TD>
<TD width=84>
<DIV align=center>Si</DIV></TD>
<TD width=72>
<DIV align=center>Mn</DIV></TD>
<TD width=60>
<DIV align=center>P</DIV></TD>
<TD width=72>
<DIV align=center>S</DIV></TD>
<TD width=84>
<DIV align=center>Cr</DIV></TD></TR>
<TR>
<TD vAlign=top width=108>
<DIV>高铬耐热铸铁RTCr16</DIV></TD>
<TD width=72>
<DIV align=center>1.6-2.4</DIV></TD>
<TD width=84>
<DIV align=center>1.5-2.2</DIV></TD>
<TD width=72>
<DIV align=center><1.0</DIV></TD>
<TD width=60>
<DIV align=center><0.10</DIV></TD>
<TD width=72>
<DIV align=center> <0.05</DIV></TD>
<TD width=84>
<DIV align=center>15-18</DIV></TD></TR>
<TR>
<TD vAlign=top width=108>
<DIV>高铬耐热铸铁RTCr28</DIV></TD>
<TD width=72>
<DIV align=center>0.5-1.0</DIV></TD>
<TD width=84>
<DIV align=center>0.5-1.3</DIV></TD>
<TD width=72>
<DIV align=center>0.5-0.8</DIV></TD>
<TD width=60>
<DIV align=center><0.10</DIV></TD>
<TD width=72>
<DIV align=center><0.08</DIV></TD>
<TD width=84>
<DIV align=center>26-30</DIV></TD></TR></TBODY></TABLE></FONT>
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