Thick walled seamless steel pipe is a common type of thick walled seamless steel pipe, which is a special material of thick walled steel pipe. For thick walled seamless steel pipes, it is more important to protect their basic use and play a more important role in performance. Thick walled seamless steel pipe is an important material for seamless steel pipes. Its hardness is relatively high, and it is generally difficult to cut. It is necessary to master cutting techniques and methods, so that thick walled seamless steel pipes can be cut successfully and not harm people. How to cut thick walled seamless steel pipes for safety? Below, the editor will take you to understand.
1. Oxygen acetylene flame cutting, by adjusting the oxygen valve and acetylene valve, can change the mixing ratio of oxygen and acetylene to obtain three different flames: neutral flame, oxidation flame, and carbonization flame.
2. Ion cutting and plasma cutting, combined with different working gases, can cut various metals that are difficult to cut with oxygen, especially for non-ferrous metals (stainless steel, aluminum, copper, titanium, nickel) with better cutting effect; Its main advantage is that when cutting metal with small thickness, plasma cutting speed is fast, especially when cutting ordinary carbon steel sheets, the speed can reach 5-6 times that of oxygen cutting method, the cutting surface is smooth, the thermal deformation is small, and there is less heat affected zone.
3. Mechanical cutting adopts two types of installation: external installation and internal installation. It uses the principle of turning tool processing to cut and groove the pipe mouth. The single machine has a large span, can process thick, has less waste, and is pollution-free. The processing process does not generate high temperatures, does not affect the pipeline material, and is conducive to welding. Water cutting processes pipelines through the combined action of high-pressure pumps and diamond sand, resulting in clean cuts and a large processing span. However, its efficiency is low and the processing thickness is severely limited.