CNC plasma cutting machine stainless steel processing details
Domestic use of plasma cutting most major application material is stainless steel, the use of CNC plasma cutting machine to achieve the stainless steel cutting material not only can reduce the waste of materials and improve the cutting speed and efficiency, while the stainless steel processing quality and has a good guaranteed in NC processing enterprises, most companies are cutting and welding as one of the processing enterprises, and as stainless steel cutting CNC plasma cutting machine, during use, the need to pay attention to some details include the following:
Chrome 13 stainless steel after welding sclerosing large, easy to crack. After the use of a CNC plasma cutting machine for different types of chromium stainless steel electrode (G202, G207) welding must be above 300 ℃ preheating and soldering about 700 ℃ slow cooling process. If the weldment after weld heat treatment is not carried out, it should be used chrome-nickel stainless steel electrode (A107, A207).
2. chromium stainless steel with a certain degree of corrosion (oxidizing acids, organic acids, cavitation), heat and wear resistance. Typically used in power plants, chemical, oil and other equipment and materials. Poor chromium stainless steel welding, CNC plasma cutting machine using the process should pay attention to the welding process, heat treatment conditions and choose the appropriate welding.
3. chrome-nickel stainless steel electrode has good corrosion resistance and oxidation resistance, widely used in chemical, fertilizer, petroleum, medical machinery.
4. When using CNC plasma cutting machine to complete chrome-nickel stainless steel welding, subjected to repeated heating carbide precipitation, reduce corrosion resistance and mechanical properties.
5. 17 chromium stainless steel, to improve the corrosion resistance and weldability suitable amount suitable to increase the stability of the elements Ti, Nb, Mo, etc., 13 chromium stainless steel weldability than better. When using CNC plasma cutting machine for this type of chromium stainless steel electrode (G302, G307), it should be tempered after more than 200 ℃ preheating and welding of around 800 ℃. If you can not heat treated weldments, it should be used chrome-nickel stainless steel electrode (A107, A207).