Several precautions to be kept in mind in the processing of stamping elbows

Stamping elbow is a very common elbow produced by electronic stamping parts processing plants. Stamping elbows are used and promoted in a variety of fields and industries. Electronic stamping elbows are stamped from a metal plate with the same material as the pipe. Half ring elbows, and then two half ring elbows are welded to form; the welding of stamped elbows needs to be processed in accordance with certain procedures, because the welding specifications of various types of pipes are different, and the semi-products are usually shipped in groups and on site During the construction, the welding is carried out according to the welding grade of the pipeline, so it is also called the two-half stamping elbow. What should be paid attention to when processing electronic stamping elbows? 1. In order to improve the corrosion resistance and weldability of stamping elbows, appropriate amount of stability elements ti, nb, mo, etc. are added during production, and the weldability is better than that of chrome 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. 2. The stamped elbow has greater hardenability after welding, and it is easy to produce cracks. When welding, different electrodes should be used for welding to ensure the quality of the welded stamped 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 electrodes have different functions and characteristics in use, and they are selected according to the corresponding needs in use to ensure the quality of the welded stamping elbow. 3. The stamping elbow 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 at the same time, it is easy to be red. Therefore, the stainless steel stamping elbow should use DC power supply as much as possible. 4. The stamping elbow has certain corrosion resistance (oxidizing acid, organic acid, Cavitation), heat and wear resistance. Generally used for power station, chemical, petroleum and other equipment materials. The weldability of chromium stainless steel stamping elbows is poor. Attention should be paid to the welding process, heat treatment conditions and the selection of suitable welding rods. 5. Stamping elbows have outstanding corrosion resistance and oxidation resistance, and their outstanding characteristics have prompted their use and promotion in different areas, and are widely used in chemical, fertilizer, petroleum, and medical machinery manufacturing. The processing of stamping elbows is the use of traditional or special stamping equipment, and the metal plate parts are directly affected by the deformation force and deformation of the mold, and the production technology of product parts with a certain shape, size and performance is obtained. When stamping elbows, pay attention to the production process. Matters that should be paid attention to during processing. Good production technology, sheet metal, mold, and equipment are the three elements of the stamping process. In the production process, we must pay attention to the coordination of these factors, so as to avoid some unexpected situations. Because of its own characteristics, stamping elbows are suitable for different fields. When using, we must figure out the nature of stamping elbows, so that they can be effectively used in various fields. Of course, different production standards must be strictly followed during production. Recommended article: Common quality problems of bending stamping parts and improvement countermeasures Previous: Analysis of causes of deformation of aluminum alloy stamping parts