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我们在维修作业中,采用电焊技术巧取断头螺栓,简单方便又提高了工作效率。 螺栓断头形式一般有三种:一是扭紧时折断;二是拆卸时折断;三是受力自然折断。断头螺栓一般与机件结合面平齐或外露,少数的可能深入螺孔4～5mm左右。 当断头螺栓外露或与螺孔外面平齐时,焊接前可用滑石粉与黄油拌合成糊状,涂于螺孔周围(约20mm),防止飞溅焊渣粘结。用一内径略大于断头螺栓直径的螺母套上,用φ2.5mm的低碳钢焊条,根据断头螺栓直径大小选择相应的
Our maintenance operations, the use of welding technology Qiaotu decapitated bolts, simple and convenient and improve work efficiency. There are three types of bolt breakage: one is broken when tightened; the other is broken when disassembled; the other is broken by force. Bolt bolt generally flush with the mechanical surface or exposed, a small number of possible in-depth screw 4 ~ 5mm or so. When the decapitated bolt is exposed or flush with the outside of the screw hole, the talcum powder and butter can be mixed into a paste before welding. Apply it around the screw hole (about 20mm) to prevent the spatter from sticking. Use a diameter slightly larger than the diameter of the bolt Bolt diameter set, with φ2.5mm low carbon steel electrode, according to the size of the decapitated bolt diameter corresponding to choose