熔化极混合气体保护焊工艺研究与应用

为推广应用熔化极混合气体保护焊这一崭新的焊接工艺技术,选择压力容器行业广泛使用的16MnR低合金钢进行试验,通过试验分析确定出最佳的焊接工艺规范参数,最后完成试件的焊接和焊接工艺评定,并应用于容器生产中。通过试验,用此方法所焊的焊接接头的各项力学性能指标均高于标准规定的下限值,焊缝的使用性能良好,可保证产品焊接质量,同时可提高劳动生产率,减轻劳动强度,减小焊接应力与变形。此方法适合于16MnR低合金钢的焊接,可推广应用于压力容器生产中。

Study and application on mixed gas shielded welding technique of fusion pole

A new welding technique, mixed gas shielded welding of fusion pole is popularized. A test is conducted with 16MnR low alloy steel used widely in pressure vessel industry. The welding of test piece and technical evaluation are finished with the best welding parameters defined by test and analysis. By way of the test, all mechanical property indexes are above the low limit value of standard stipulating for welded joint with good usage property, high welding quality and less welding stress and deformation. It is suitable for the welding of 16MnR low alloy steel and can be used into pressure vessel production.