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一、手工电弧焊/手工钨极氩弧焊组 1.操作项目 操作项目按试件形式分:板材对接焊、大口径管对接焊、小口径管对接焊及管板焊接(骑座式)四种,其中: (1)板材对接焊为平焊、仰焊。 (2)大口径管对接焊为45°固定。 (3)管板焊接为垂直仰焊。 (4)小口径管对接焊为水平固定。 2.试件材料 试件材料为20钢。规格:大口径管φ133mm×10mm;小口径管φ42mm×5mm。 3.焊接材料 (1)手工电弧焊 焊条E5015,φ2.5mm、φ3.2mm、φ4.0mm(选手自定)。 (2)手工钨极氩弧焊φ2.5mm焊丝
First, the manual arc welding / manual TIG welding group 1. Operation of the project according to the project in the form of specimen: butt welding of plates, large diameter pipe butt welding, butt welding of small diameter pipe and tube plate welding (riding type) Four Species, of which: (1) butt welding plate welding, Yang welding. (2) large diameter pipe butt welding is 45 ° fixed. (3) tube plate welding vertical vertical welding. (4) small diameter pipe butt welding horizontal fixed. 2. Specimen material The specimen material is 20 steel. Specifications: Large diameter pipe φ133mm × 10mm; small diameter pipe φ42mm × 5mm. 3. Welding materials (1) Manual arc welding electrode E5015, φ2.5mm, φ3.2mm, φ4.0mm (player custom). (2) manual TIG welding φ2.5mm wire