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焊接工艺评定(Welding Procedure Qualification Record，简称WPQR)为验证所拟定的焊件焊接工艺的正确性而进行的试验过程及结果评价。
焊接工艺评定目的
1.评定施焊单位是否有能力焊出符合相关标准或行业标准、技术规范所要求的焊接接头;2.验证施焊单位所拟订的焊接工艺规程(WPS或pWPS)是否正确。
3.为制定正式的焊接工艺指导书或焊接工艺卡提供可靠的技术依据。
欧盟焊接工艺评定适用范围
1.适用于锅炉，压力容器，压力管道，桥梁，船舶，航天器，核能以及承重钢结构等钢制设备的制造、安装、检修工作
⒉.适用于气焊，焊条电弧焊，钨极氩弧焊，熔化极气体保护焊，埋弧焊，等离子弧焊，电渣焊，螺柱焊，激光焊，压力焊等焊接方法。
焊接工艺评定过程
1.预焊接工艺指导书(Preliminary Welding Procedure Specification，简称PWPS);
⒉施焊试件和制取试样;
3.检验试件和试样;
4.测定焊接接头是否满足标准所要求的使用性能;
5.提出焊接工艺评定报告对拟定的焊接工艺指导书进行评定。
焊接工艺评定标准
EN ISO 15614-1:2004/A2:2012-钢、镍及镍合金的焊接工艺评定
Specification and qualifcation of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels andarc welding of nickel and nickel alloys
EN ISO 15614-2:2005/AC:2009-铝及铝合金的焊接工艺评定
Spedfiation and qullficaton of welding procedures for metallic materials - Wwelding procedure test - Part 2: Arc welding of aluminium and itsalloys
EN ISO 15614-4:2005/AC:2007 -铸铁的焊接工艺评定
Spedfiation and qualfication of welding procedures for metallic materials - Weld ing procedure test - Part 4: Finishing welding of aluminiumcastings
EN ISO 15614-5:2004 -钛/错及其合金的焊接工艺评定
Secdfication and qualfcation of welding procedures for metallic materials - Wwelding procedure test - Part 5: Arc welding of titanium, zirconiumand their alloys
EN ISO 15614-6:2006-铜及铜合金的焊接工艺评定
Sedficaton and qulification of welding procedures for metllicmaterials - Welding procedure test - Part 6: Arc and gas welding of copper andits alloys
EN ISO 15614-7:2007 -堆焊的焊接工艺评定
Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 7: Overlay weldingEN ISO 15614-8:2002-金属材料焊接程序的规范和鉴定
Spe dfication and qualfication of welding procedures for metllic materials - Welding procedure test - Part 8: Welding of tubes to tube-platejoints
EN ISO 15614-11:2002-电子束/激光焊的焊接工艺评定
Spedification and qualification of welding procedures for metllic materials - Weld ing procedure test - Part 11: Electron and laser beam weldingEN ISO 15620:2000 -焊接.金属材料摩擦焊接welding - Friction welding of metallic materials
国际焊工证简介：
焊工是各种金属材料制造业和工业中的裁缝，他的焊接技能不仅决定了产品的质量，更直接涉及到产品使用人员的人身安全。欧盟认为只有拥有合格资质的焊工才能确保焊接工作的 度及品质。
考取国际焊工证的作用：
1.掌握应用于不同行业的焊接操作技巧，提高焊缝质量及焊接效率。
⒉掌握扎实的焊接 理论用以指导并解决焊接缺陷问题，成为焊接领域的技术性人才。
3.养成职业安全习惯及消防意识，使学员在实际生产中避免或尽量减少事故的发生。
国际焊工证的主要标准：
EN 287-1:2011 Qualification test of welders - Fusion welding - Part 1:Steels (已被ISO 9606-1取代)EN 287-1:2011焊工的认可试验-熔焊第1部分:钢
EN ISO 9606-1 Qualification testing of welders - Fusion welding - Part 1: SteelsEN ISO 9606-1焊工的认可试验-熔焊--第1部分:钢
EN ISO 9606-2 Qualification test of welders-Fusion welding-Part 2: Aluminium and aluminium alloysEN ISO 9606-2焊工的认可试验-熔焊-第2部分:铝和铝合金
EN ISO 9606-3 Approval testing of welders - Fusion welding - Copper and copper alloysEN ISO 9606-3焊工的认可试验.熔焊.铜及铜合金
EN ISO 9606-4 Approval testing of welders-Fusion welding-Part 4;:Nickel and nickel alloys.EN ISO 9606-4焊工的认可试验-熔焊接-第四部分:镍和镍合金
EN ISO 9606-5 Approval testing of welders - Fusion welding - Part 5: Titanium and titanium alloys,zirconium and zirconiumEN ISO 9606-5焊工的认可试验熔焊第5部分:钛及钛合金、错和钴合金
EN ISO 17660-1 welding - Welding of reinforcing steel - Part 1:Load-bearing welded jointsEN ISO 17660-1焊接.钢筋焊接.承载焊接接缝
EN ISO 17660-2 welding - Welding of reinforcing steel - Part 1: non-loadbearing welded jointsEN ISO 17660-2焊接.钢筋焊接.非承载焊接接缝
BSEN 1418:1998 Welding personnel. Approval testing of welding operators forfusion welding and resistance weld setters for fuly mechanizedand automatic welding of metallic materials (已被ISO 14732取代)
BSEN 1418:1998 -焊接操作者.完全机械化和金属材料自动焊接的熔焊和阻焊焊接操作者的验收试验
EN ISO 14732:2013 Welding personnel-Qualification testing of welding operators and weld setters for mechanized and automatic welding ofmetallic materials
EN ISO 14732:2013焊接人员-金属材料机械化焊接和自动焊的焊接操作工和焊接安装工的资格测试EN ISO 13585-2012 brazing-qualification test of brazers and brazing operators
EN ISO 13585-2012钎焊-钎焊工和钎焊操作工的资格考试。