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xin bian mo ju shi yong ji shu 300 li
Author(s): 
Pages: 10
Year: Issue:  2
Journal: Heat Treatment Technology and Equipment

Keyword:  渗硼剂硅碳棒稀土合金防护涂料渗剂涂层厚度高温型渗层厚度渗层深度渗层组织;
Abstract: <正> 232.45钢制硅碳棒成型模用以硼酸为供硼源的膏剂渗硼处理 在由以硼酸为供硼源的渗硼膏剂上,再加覆有一层防护涂料的硅碳棒成型模,不需装箱即可在空气炉中加热进行渗硼,用此法渗硼的模具使用寿命可提高到近千件。 (1)渗剂成分及配制 渗剂以硼酸(含量为20%~50%)为供硼源;以稀土合金(含量为30%~50%)为还原剂;以CaF2为高温型活化剂;以CaF2,Na2SiF6为中温型活化剂;以
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