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近十年来,随着一些具有某些特种要求(如高温、高压、低温、高强、耐蚀等)的新材料的广泛应用,新的焊接工艺方法、新能源研究、新设备研制,生产的自动化相应发展起来。从熔化焊开创的工业范围大面积应用以来,焊接技术达到一个新的发展阶段。焊接技术进步正朝着高质量、高生产率、降低能耗方面前进。焊接技术发展水平较高的国家有美、苏、日本三国。现就焊接技术领域内某些方面,作些浅析。 1.焊接材料 (1) 高效铁粉焊条:提高生产率途径之一是在焊条药皮中加入大量铁粉,熔敷系数可达18g/Ah,比
In recent ten years, with the extensive application of new materials with some special requirements (such as high temperature, high pressure, low temperature, high strength, corrosion resistance, etc.), new welding methods, new energy research, new equipment development and production automation Correspondingly developed. Welding technology has reached a new stage of development since its application to a large area of industrial scale. Advances in welding technology are moving toward high quality, high productivity, and reduced energy consumption. Countries with high level of welding technology development include the United States, the Soviet Union and Japan. Now some aspects of the welding technology, make some analysis. 1. Welding materials (1) efficient iron powder electrode: one of the ways to improve productivity is to add a lot of iron in the electrode coating, the cladding coefficient up to 18g / Ah, than