| 摘要: |
| 针对大拘束、Cl-腐蚀、-10 ℃等苛刻条件下裂纹修复问题，根据维修与再制造焊接特点自主研究开发了维修与再制造用TWE312R型系列焊接材料。采用斜Y坡口小铁研裂纹试验方法研究了TWE312R16焊条焊接高硬度装甲钢的抗裂性能，结果表明：即使环境温度低至-5～-14 ℃，焊接试样的表面和断面裂纹率均为零。TWE312R型系列焊接材料已在装备维修和工模具等行业得到成功应用，在维修与再制造焊接、异种钢焊接领域显示出良好的应用前景。 |
| 关键词: TWE312R型焊接材料 修复 维修 再制造 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（50574097）；总装备部通用装备保障部项目（2000CX11，2006SC04） |
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| TWE312R Type Welding Consumables for Maintenancerepairremanufacturing Welding |
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TAN Wei
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Beijing Special Equipment Inspection and Test Centre, Beijing 100029
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| Abstract: |
| Aimed at repairing restraint cracks under the conditions of chloride corrosion or at ambient temperature up to 10 ℃ below zero, TWE312R type welding consumable were developed for steel structure repair and remanufacturing. The crack susceptibility of an ultrahigh strength armor steel/TWE312R weldment was characterized by means of ygroove crack test. Experiment results showed that crackfree restraint weldment would be satisfied at the ambient temperature range of -5～-14 ℃. Practical examples of TWE312R type welding consumable were illustrated in such fields as equipment maintenance and tool industries，and showed good prospects in the field of dissimilar steel welding or maintenance repairremanufacturing welding. |
| Key words: TWE312R type welding consumable repair maintenance remanufacturing |
