What are the characteristics of cold rolled strip technology?
Pickling process: remove the oxide film on the surface of the raw material to ensure the high quality of the material;Rolling process: the raw material is rolled into the thickness required by the customer with a high precision mill;Bell type bright annealing: the material which is hardened by rolling can be restored to normal flexibility;Fine leveling: the softened material is refined into flat and easy to process finished material;Finished product: the finished product is packed with fine finish;Flat, strip: according to different requirements of customers, finished products straight, strip.
Cold rolled blank because the surface covered with oxide film and a small amount of impurities, will directly affect the precision of rolling and the quality of the product, so the blank material must first sent to the shallow groove company push-pull continuous pickling, pickling of oxide film and annealing to remove impurities, can be sent to the high precision six roller reversible rolling mill made the required thickness. After rolling through forced circulation cover type bright annealing furnace and high precision leveling unit two Kun to soften and smooth surface, and then finished packing or according to customer demand straight points, finally packaging factory.
Cold rolled steel strip is rolled steel as raw material, after pickling, rolling, fine cut, withdrawal, leveling, straightening, finally packaged into a strip shape, the surface effect basically has two kinds: Bright strip and black annealed strip, are used for different purposes.
