Rolled metal is actively used in various fields due to its technical characteristics and affordable cost. Black rolled metal can be produced by various methods, including cold and hot rolling. Each option has its own unique features that have a direct impact on operational parameters.
Features of the manufacture of rolled products using hot rolling
Hot rolling is a procedure for the production of ferrous metal, when it is heated to approximately one thousand degrees, after which it is rolled using special rollers. It is under such conditions that the initial metal mass is given its final shape. During such processing, the metal becomes more pliable and ductile, which significantly speeds up the processing process. An additional advantage of this processing method is the affordable cost. But, if the metal at high temperatures comes into contact with air, there is a risk of scale. Accordingly, it is impossible to obtain an ideal surface quality with such processing. It is necessary to carry out additional processing of the workpiece after hot rolling.
Features of cold rolling
Cold rolling is a method of making black rolled metal, when the metal is passed through the same rollers, but without preheating. In this case, high temperatures replace high pressure. This product has the following features:
- High strength.
- Uniformity.
- Smooth surface.
- Low plasticity.
Stresses may appear in the metal, to eliminate which it can be additionally fired or crimped. Cold rolling can be used in a variety of industries, including the medical field to create a variety of tools, etc.
What is cold and hot rolled metal?
Regardless of the specific manufacturing method, several main categories of black rolled metal can be distinguished. It happens sheet, shaped, high-quality. Among the main products here can be noted a variety of metal corners, channels, beams, fittings and other similar products. It is very important to order black rolled metal in a proven place so that you can count on impeccable quality and durability of operation in full compliance with all modern standards.