What should be paid attention to when processing Metal Stamping elbows?

1. In order to improve the corrosion resistance and weldability of the stamping elbow, an appropriate amount of stability elements such as ti, nb, mo, etc. should be added during production, and the weldability is better than that of the chrome stamping elbow. When using the same type of chrome stainless steel stamping elbow, preheating above 200 C and tempering at about 800 C after welding should be carried out. If the weldment cannot be heat treated, a chrome-nickel stainless steel stamping elbow should be used;

2. Stamping elbows have greater stiffness after welding and are prone to cracking. When welding, different electrodes should be used for welding to ensure the quality of the welded stamping elbows. If the same type of chrome stamping elbow electrode is used for welding, it is necessary to carry out preheating above 300 C and slow cooling treatment at about 700 C after welding. In the process of processing hardware stamping parts, if the weldment cannot be heat treated after welding, chrome-nickel stamping elbows should be selected. Different types of welding electrodes have different functions and characteristics in use. They should be selected according to the corresponding needs in application to ensure the quality of the welded stamping elbows; 3. Stamping elbows have titanium-calcium type and low-hydrogen type. Titanium calcium type can be used for AC and DC, but the penetration depth is shallow during communication welding, and it is easy to turn red at the same time. Therefore, the stainless steel stamping elbow should use DC power supply as much as possible.

4. Stamping elbows have certain corrosion resistance (oxidizing acid, organic acid, cavitation), heat resistance and wear resistance. Generally used in power stations, chemical, petroleum and other equipment materials. Chromium stainless steel stamping elbows have poor weldability, so attention should be paid to the welding process, heat treatment conditions and the selection of suitable welding electrodes;

5. Stamping elbows have outstanding corrosion resistance and oxidation resistance, and their outstanding characteristics prompt their application and implementation in different fields. They are widely used in chemical, fertilizer, petroleum, and medical machinery manufacturing.

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