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成人高等教育毕业论文题目：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孔伟函授站济宁函授站学号C1002492101指导教师苗现华开题报告日期2012年4月20日哈尔滨工业大学2012年4月I目录摘要···········································································································································ⅢABSTRACT·······························································································································Ⅳ1前言1.1堆焊技术的发展及应用··········································································································11.1.1基本概念···························································································································11.1.2我国堆焊技术的发展状况·······························································································31.1.3堆焊技术在生产中应用···································································································41.2堆焊方法··································································································································41.2.1焊条电弧堆焊···················································································································41.2.2埋弧堆焊····························································································································61.2.3钨极氩弧堆焊···················································································································71.3课题内容及目的······················································································································8II2实验2.1实验材料··································································································································92.1.1母材及其性能························...