崔洪芝,李永凤,孙金全,李保民,陈鑫,白斌

• 1:山东科技大学材料科学与工程学院
• 2:山东博特精工股份有限公司

摘要(Abstract)：

通过涂覆导磁体对GCr15钢滚珠丝杠表面感应淬火进行漏磁控制,对比分析了漏磁控制前后试样淬火组织、硬度、深度及耐磨性。研究表明:GCr15淬火后的组织为马氏体+残留奥氏体,控制漏磁淬火工艺显著增加丝杠滚道处的磁力线密度,提高整个丝杠表面的温度和加热深度,增加淬火硬化层的深度,也减小硬度曲线的梯度,从而显著提高了耐磨性,相对于未淬火试样耐磨性提高了2.5～4倍。感应淬火试样的磨损主要是磨粒磨损和剥层磨损,未涂覆导磁体时,剥层厚且是脆性和塑性断口混杂的粗糙形貌,而涂覆导磁体后,因为组织和硬度均匀,硬化层深度大,磨削片层薄且表面光整,耐磨性好。

关键词(KeyWords)： GCr15钢;导磁体;耐磨性;漏磁控制

Abstract:

Keywords:

基金项目(Foundation): 山东省“泰山学者”计划(ts20110828);; 工信部“高档数控机床与基础制造装备”科技重大专项(2011ZX04014-031)

作者(Author): 崔洪芝,李永凤,孙金全,李保民,陈鑫,白斌

DOI: 10.13289/j.issn.1009-6264.2013.08.017

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