Pay attention to stamping elbow processing

Stamping elbow is a kind of good elbow, which is widely used and promoted in different fields and industries, and has been applied and popularized in different degrees. The stamping elbow is made of a plate of the same material as the pipe and stamped into a half ring elbow with a stamping die, and then the two half ring elbows are assembled and welded to form. The welding of the stamped elbow needs to be produced and processed according to certain procedures . Due to the different welding standards of various types of pipes, the semi-finished products are usually delivered according to the group and the point is fixed. The field construction is welded according to the pipeline weld level, so it is also called the two-half stamped elbow. 1. The stamped elbow is processed by The power of conventional or special stamping equipment causes the sheet metal to be directly deformed and deformed in the mold, so that the air-conditioning compressor obtains the production technology of product parts with certain shapes, sizes and performance. 2. Pay attention to good production technology in processing. Sheet materials, molds and equipment are the three elements of stamping processing. Pay attention to good use and cooperation during production. Stamping is a method of metal cold deformation processing. Therefore, it is called cold stamping or sheet metal stamping, or stamping for short. It is one of the main methods of metal plastic processing (or pressure processing), and it also belongs to material forming engineering technology. 3. Stamping elbows are used in different fields and industries. When using, they need to be produced and used according to certain standards. The precautions and methods of stamping elbows are explained below. Strict attention should be paid to ensure the quality of stamping elbows. Quality and performance make it have a good service life. Matter 1: After welding, the stamping elbow is hardened and prone to cracks. When welding, use different electrodes for welding to ensure the quality of the welded stamping elbow. If the same type of chrome stamping elbow electrode is used for welding, preheating above 300℃ and slow cooling treatment at about 700℃ after welding must be carried out. If the weldment cannot be subjected to post-weld heat treatment, chromium-nickel stamping elbows should be used. Different types of welding rods have different performances and characteristics in use, and they are selected according to the corresponding needs in use to ensure the quality of the welded stamping elbow. The second item is to improve the corrosion resistance and weldability of stamping elbows. Appropriately increase the appropriate amount of stability elements Ti, Nb, Mo, etc. during production. The weldability is better than that of chromium stamping elbows. When using the same type of chrome stainless steel stamping elbow, it should be preheated above 200℃ and tempered at about 800℃ after welding. If the weldment cannot be heat treated, the chrome-nickel stainless steel stamping elbow should be used. Matter 3 The stamping elbow has good corrosion resistance and oxidation resistance, and its good characteristics promote its use and promotion in different fields, and it is widely used in chemical, fertilizer, petroleum, and medical machinery manufacturing. Matter 4 The stamping elbow has certain corrosion resistance (oxidizing acid, organic acid, cavitation), heat resistance and wear resistance. Usually used for power station, chemical, petroleum and other equipment materials. The weldability of chromium stainless steel stamping elbows is poor, and attention should be paid to the welding process, heat treatment conditions and the selection of suitable welding electrodes. Item 5 The coating for stamping elbows has titanium calcium type and low hydrogen type. Titanium-calcium type can be used for AC and DC, but the penetration depth is relatively shallow during AC welding, and it is easy to be red, so the stainless steel stamping elbow uses DC power as much as possible. Item 6 The stamping elbow should be kept dry when using it. The calcium-titanium type should be dried at 150°C for 1 hour, and the low-hydrogen type should be dried at 200-250°C for 1 hour (do not repeat the drying multiple times, otherwise the coating will easily crack and peel). Prevent stainless steel stamping elbow coating from sticking to oil and other dirt, so as not to increase the carbon content of the stainless steel stamping elbow weld and affect the quality of the weldment. Item 7 When stamping elbows are welded, carbides will be released after heating, and carbides will be precipitated by repeated heating. The released carbides will affect the performance of stamping elbows and reduce corrosion resistance and mechanical properties. Related news: main materials of stamping parts The characteristics of stamping parts common problems deal with the characteristics of scaffold stamping parts and the importance of inspection hardware stamping parts advantages introduce the advantages, procedures and characteristics of stamping parts