Hebei billion gold standard pipe _] _ [butt welded elbow elbow provided by Hebei billion gold piping. We are Hebei billion gold Pipe Manufacturing Co., Ltd. (www.yijinguanjian.com) here: Hebei Cangzhou specializes in: insulation joints, insulating flange, flanges, elbows, head, tee, head, Stone, etc. on welding elbow before welding, to avoid distortion, the group as a whole on both sides of the elbow alignment outermost ends of the tile, stainless steel arc board and keel reinforcement is good. In accordance with conventional welding methods, need argon welding of large diameter welded elbow, taking into account the cost of welding and shrimp waist diameter greater difficulty argon, using the above factors in the welding, welders while the outer two symmetrical welding, a good solution to both problems argon, but also very good shape. Spot welding process using argon welding joint. Electrode selection A022, wire selection: HOOCr21Nil0. Lower using arc welding primer. Before welding work in the left and right sides of the weld each 100mm range, rock chalk powder brush, adhere to the surface of the pipe to prevent splashing, before carrying out welding work, using a small current. Multi-layer multi-channel, continuous welding. After the completion of the overall welding, weld spatter on the elbow joints and surface grinding, welding completion of prefabricated welded elbow pads, non-destructive testing, internal and external weld surface pickling, passivation. The pickling completed elbow transported to the installation site, the final on-site installation work. Thermal resistance welded elbow is the use of the two workpieces simultaneously welded together along the entire end face of a class of resistance welding methods. Butt high productivity, easy to automate large welded elbow, which is widely available. Its range of applications can be summarized as follows: Butt (1) take a long workpieces such as steel, profiles, wire, steel, rail, boiler pipe, oil and gas transportation and other pipelines. (2) circular welded workpieces such as car and bicycle rims, motorcycle rim butt, butt, etc. all kinds of chain link. Welding (3) part of the butt simple rolling, forging, stamping or machined parts into complex parts welded elbow standards to reduce costs. For example, the direction of the shaft housing and automobile rear axle housing welded various rod, rod butt, butt and special parts and so on. (4) dissimilar metal weld can save precious metals, improve product performance. Such as working part of the tool (HSS) butt and tail (carbon steel), the internal combustion engine exhaust valve head (heat-resistant steel) butt and tail (structural steel), copper conductive aluminum butt joints, etc. . 45 ° elbow to the drain of professional multi-fingered metal elbow, small diameter bent elbow can simmer obtained; bending, bending: general machining of small diameter cold-formed elbows can be obtained; need to heat a large diameter bent. Simmer bending process generally refers to the scene complete.