贺连芳,李辉平,盖康,孔令亮,崔洪芝,李木森

• 1:山东科技大学材料科学与工程学院
• 2:山东大学材料科学与工程学院

摘要(Abstract)：

借助工艺实验和数值模拟技术,优化了55Cr Mo钢精密滚珠丝杠感应加热及冷却工艺参数,改善了丝杠感应淬火后的淬硬层分布。构建了丝杠单感应圈加热的有限元模型,通过数值模拟得到了单感应圈加热时沟道区域的温度曲线。数值模拟结果表明:沟道区域的温度场分布不合理是导致淬硬层分布不合理的主要原因。针对单感应圈感应淬火工艺的不足,提出了双感应圈加热工艺。数值模拟结果表明,采用双感应圈加热工艺、喷水冷却带宽度为40 mm时,可保证丝杠沟道顶部的淬硬层深度约为6.2 mm,沟道底部的淬硬层深度约为3.0 mm。工艺实验结果表明,丝杠沟道区域的淬硬层分布得到较大的改善,数值模拟结果与工艺实验结果吻合得较好。

关键词(KeyWords)： 55CrMo钢;感应加热;淬火;滚珠丝杠;硬度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51175302);; 国家科技重大专项(2011ZX04014-031);; 教育部“新世纪优秀人才支持计划”(NCET-12-0342);; 山东科技大学人才引进科研启动基金(2013RCJJ002,2013RCJJ005)

作者(Author): 贺连芳,李辉平,盖康,孔令亮,崔洪芝,李木森

DOI: 10.13289/j.issn.1009-6264.2015.01.039

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