Stainless steel coil is a kind of material widely used in construction, machinery, automobiles, ships and other fields, its excellent corrosion resistance and high strength make it widely used in many fields. So, how are stainless steel rolls made?

The manufacturing process of stainless steel coil can be divided into the following steps:

Raw material selection

The production of stainless steel coils first requires the selection of high-quality raw materials. Typically, these raw materials include iron, chromium, nickel, and other alloying elements. The choice and proportion of these elements will determine the stainless steel type and characteristics of the final product.

Smelting

The manufacture of stainless steel rolls first requires smelting stainless steel. Smelting is the process of melting raw materials such as iron ore and scrap steel into molten steel by high-temperature reaction. In the smelting process, it is necessary to control the temperature, add alloying elements and other operations to obtain the required stainless steel composition and properties.

Continuous casting

The molten steel is poured into the continuous casting machine, and the molten steel is solidified into steel plate by controlling the speed and temperature of the continuous casting machine. Attention should be paid to prevent defects such as cracks and inclusions in the process of continuous casting.

Hot rolling

The ingot is then fed into a hot mill where it is rolled to the desired thickness and width through a series of hot rolling processes. During hot rolling, the ingot is heated to a certain temperature and then its shape is changed by the pressure of the roll.

Hot rolling

The ingot is then fed into a hot mill where it is rolled to the desired thickness and width through a series of hot rolling processes. During hot rolling, the ingot is heated to a certain temperature and then its shape is changed by the pressure of the roll.

Pickling

After hot rolling, the surface of the stainless steel roll will have a layer of oxide iron sheet, which needs to be pickled. Pickling is the stainless steel roll soaked in acid, through chemical reaction to remove the surface of the oxide scale and stains, so that the surface of the stainless steel roll smooth and smooth.

Cold rolling

The annealed steel sheet is then cold-rolled. In the cold rolling process, the steel plate is further rolled at room temperature through the pressure of the roll to achieve higher precision and surface quality.

Surface treatment

Cold-rolled stainless steel coils may require surface treatment, such as polishing, sandblasting, etc., to further improve their surface quality and beauty.

Conclusion

The manufacturing process of stainless steel coil includes smelting, continuous casting, hot rolling, pickling, cold rolling and surface treatment steps. Through the fine control of these steps, high-quality stainless steel rolls can be obtained to meet the needs of different fields.