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HEATS 发表于 2010-9-12 19:10:41

球墨铸铁常用孕育剂

<TABLE cellSpacing=0 cellPadding=0 border=1>
<TBODY>
<TR>
<TD vAlign=top width=60 rowSpan=2>
<P align=center><STRONG>种类</STRONG></P></TD>
<TD vAlign=top width=315 colSpan=4>
<P align=center><STRONG>化学成分（％）</STRONG></P></TD>
<TD vAlign=top width=73 rowSpan=2>
<P align=center><STRONG>加入量（％）</STRONG></P></TD>
<TD vAlign=top width=207 rowSpan=2>
<P align=center><STRONG>用途，特点</STRONG></P></TD></TR>
<TR>
<TD vAlign=top width=69>
<P align=center>Si</P></TD>
<TD vAlign=top width=77>
<P align=center>Ca</P></TD>
<TD vAlign=top width=74>
<P align=center>A</P></TD>
<TD vAlign=top width=94>
<P align=center>其他</P></TD></TR>
<TR>
<TD vAlign=top width=60 rowSpan=2>
<P align=center>硅铁</P></TD>
<TD vAlign=top width=69>
<P align=center>74~79</P></TD>
<TD vAlign=top width=77>
<P align=center>0.5~1</P></TD>
<TD vAlign=top width=74>
<P align=center>0.8~1.6</P></TD>
<TD vAlign=top width=94>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=73 rowSpan=2>
<P align=center>壁厚＜7㎜加1.0；壁厚10～20㎜，加0.75</P></TD>
<TD vAlign=top width=207 rowSpan=2>
<P align=center>广泛使用，后孕育效果好，随流或型内孕育尤佳，衰退快（8min）</P></TD></TR>
<TR>
<TD vAlign=top width=69>
<P align=center>74~79</P></TD>
<TD vAlign=top width=77>
<P align=center>＜0.5</P></TD>
<TD vAlign=top width=74>
<P align=center>0.8~1.6</P></TD>
<TD vAlign=top width=94>
<P align=center>&nbsp;</P></TD></TR>
<TR>
<TD vAlign=top width=60>
<P align=center>稀土硅铁</P></TD>
<TD vAlign=top width=69>
<P align=center>36~40</P></TD>
<TD vAlign=top width=77>
<P align=center>≤0.50</P></TD>
<TD vAlign=top width=74>
<P align=center>≤0.50</P></TD>
<TD vAlign=top width=94>
<P align=center>Ce9~11,总稀土11～15，Fe余</P></TD>
<TD vAlign=top width=73>
<P align=center>≤0.10</P></TD>
<TD vAlign=top width=207>
<P>后孕育。防球化衰退，增加石墨球数</P></TD></TR>
<TR>
<TD vAlign=top width=60>
<P align=center>硅钙</P></TD>
<TD vAlign=top width=69>
<P align=center>60~65</P></TD>
<TD vAlign=top width=77>
<P align=center>25~30</P></TD>
<TD vAlign=top width=74>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=94>
<P align=center>Fe余</P></TD>
<TD vAlign=top width=73>
<P align=center>0.2～0.5</P></TD>
<TD vAlign=top width=207>
<P>与稀土复合，特显著增加石墨球数。需高温铁液</P></TD></TR>
<TR>
<TD vAlign=top width=60 rowSpan=2>
<P align=center>钡硅铁</P></TD>
<TD vAlign=top width=69>
<P align=center>60~65</P></TD>
<TD vAlign=top width=77>
<P align=center>0.8~2.2</P></TD>
<TD vAlign=top width=74>
<P align=center>1.0~2.0</P></TD>
<TD vAlign=top width=94>
<P align=center>Ba4~6</P>
<P align=center>Mn8~10 Fe余</P></TD>
<TD vAlign=top width=73 rowSpan=2>
<P align=center>0.25～0.40</P></TD>
<TD vAlign=top width=207 rowSpan=2>
<P>大件或浇铸时间长。长效，防衰退，含Mn熔点低</P></TD></TR>
<TR>
<TD vAlign=top width=69>
<P align=center>63~68</P></TD>
<TD vAlign=top width=77>
<P align=center>0.8~2.2</P></TD>
<TD vAlign=top width=74>
<P align=center>1.0~2.0</P></TD>
<TD vAlign=top width=94>
<P align=center>Ba4~6</P>
<P align=center>Fe余</P></TD></TR>
<TR>
<TD vAlign=top width=60 rowSpan=2>
<P align=center>镁硅铁</P></TD>
<TD vAlign=top width=69>
<P align=center>46~50</P></TD>
<TD vAlign=top width=77>
<P align=center>0.60~0.90</P></TD>
<TD vAlign=top width=74>
<P align=center>≤1.25</P></TD>
<TD vAlign=top width=94>
<P align=center>Mg1.00~1.50, Fe余</P></TD>
<TD vAlign=top width=73>
<P align=center>0.3~1.0</P></TD>
<TD vAlign=top width=207>
<P>后孕育。既球化又孕育。镁回收率70％。可减少球化剂用量</P></TD></TR>
<TR>
<TD vAlign=top width=69>
<P align=center>58~61</P></TD>
<TD vAlign=top width=77>
<P align=center>0.50~0.70</P></TD>
<TD vAlign=top width=74>
<P align=center>0.9~1.20</P></TD>
<TD vAlign=top width=94>
<P align=center>Mg2.00~2.50</P>
<P align=center>NaNO<SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">3</SPAN></SUB>10.0, Fe余</P></TD>
<TD vAlign=top width=73>
<P align=center>0.3~1.0</P></TD>
<TD vAlign=top width=207>
<P>商品名Thermosil.NaNO<SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">3</SPAN></SUB>发生放热反应。后孕育特效</P></TD></TR>
<TR>
<TD vAlign=top width=60>
<P align=center>铋</P></TD>
<TD vAlign=top width=69>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=77>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=74>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=94>
<P align=center>Bi≥99.5</P></TD>
<TD vAlign=top width=73>
<P align=center>20～100ppm</P></TD>
<TD vAlign=top width=207>
<P>与稀土或钙复合，显著增加石墨球数，提高塑性韧度。适于铸态铁素体薄壁件</P></TD></TR></TBODY></TABLE>
               

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