（毕业设计论文）《低碳钢表面电弧堆焊耐磨层工艺及组织性能分析》.docVIP

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（毕业设计论文）《低碳钢表面电弧堆焊耐磨层工艺及组织性能分析》.doc

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PAGE 毕业论文题目：低碳钢表面电弧堆焊耐磨层工艺及组织性能分析专业焊接技术与工程类别专升本层次本科学生学号指导教师开题报告日期 2012年4月20日哈尔滨工业大学 2012年4月目录摘要···········································································································································Ⅲ ABSTRACT·······························································································································Ⅳ 1 前言 1.1 堆焊技术的发展及应用··········································································································1 1.1.1 基本概念···························································································································1 1.1.2 我国堆焊技术的发展状况·······························································································3 1.1.3 堆焊技术在生产中应用···································································································4 1.2 堆焊方法··································································································································4 1.2.1 焊条电弧堆焊···················································································································4 1.2.2埋弧堆焊····························································································································6 1.2.3 钨极氩弧堆焊···················································································································7 1.3 课题内容及目的······················································································································8 2 实验 2.1 实验材料··························································································································