A stainless steel coil is a plate that has not been leveled by a flattener after hot rolling. Hot-rolled coils are made from slabs (mainly continuous casting slabs) that are heated by roughing mills and finish rolling. The hot-rolled strip from the finishing mill is cooled to a set temperature by laminar flow and then coiled into coils by a cooler. The cooled coils go through different finishing operation lines (leveling, straightening, cross-cutting or longitudinal cutting, inspection, weighing, packaging and marking, etc.) according to the different needs of users, and are processed into steel plates, flat steel and slitting Steel belt products. Hot-rolled steel plate products have the advantages of high strength, good toughness, easy processing, good weldability, etc. It is widely used in manufacturing industries such as shipbuilding, automobiles, bridges, construction, machinery, and pressure vessels.

1) Artificial steel plate cutting method：

The common artificial gas welding cutting process uses oxygen with cutting gas propane and acetylene, etc. for steel plate cutting. This method is currently the most important manual steel plate-cutting method.

Another method is to use oil combustion to cut steel plates. This method is rarely used now and is still in the testing stage.

Then there is manual plasma cutting, which uses a plasma arc to cut steel plates manually with a cutting gun. This method has a very fast cutting speed and is suitable for cutting thin plates and stainless steel plates.