Butt welding elbow is a kind of elbow which is formed by hot pressing of steel or casting technique

Before welding, the stainless steel butt-weld elbows are welded elbows to avoid deformation of the welding elbows. After aligning the outermost tiles on both sides of the elbows of the jade adult body, they are reinforced with stainless steel arc plates and keels Good. According to the customary welding skills, argon welding is required. Considering the original cost of welding and the larger diameter of the waist of the shrimp, the argon charging is more difficult. Due to the above factors, the two welders inside and outside are used for welding. It is not only good to deal with the problem of argon filling, but also has a good shape.

Welding process using argon spot joint welding. The electrode is A022 and the welding wire is: HOOCr21Nil0. The short layer is welded to the bottom by argon arc welding. Before holding the welding job, brush the chalk powder within 100mm on both sides of the welding seam to avoid splashing and adhere to the surface of the tube. Before holding the welding job, use a small current. Multi-layer multi-speaking, successively welding. After the interruption of the ideal welding, the welding points and spatters on the surface of the butt welding elbow are ground, and the tiles of the prefabricated welding are interrupted.

Non-destructive testing is carried out, pickling and passivation are carried out on the inner and outer weld surfaces. The elbows with interrupted pickling are transported to the installation site, and on-site installation homework is held. Butt welding elbow is a kind of elbow formed by hot pressing or casting technique made of steel. The countermeasure is through butt welding of the elbow and the steel pipe. The resistance heat is used to intersect the two workpieces along all the end faces. There are two methods of resistance for welding and flashing for welding. The consumption rate is very high and it is easy to implement automation, so it has won widespread use.

Stainless steel not only saves space and reduces the amount of sinking for elbows, but the more important thing is to ensure that there will be no disclosure at the junction, and it has a good sealing instinct. The reason why the compact flange standard is reduced is because the diameter of the seal is reduced, which will reduce the cross section of the sealing surface. Secondly, the flange gasket has been replaced by a sealing ring to ensure the fit of the sealing surface to the sealing surface. The B value of the 45-degree elbow is a construction standard. It is convenient for the master to prepare for the management staff.