It is not known what road would have been prepared for mankind if at some point one of our inquisitive ancestors had not come up with the idea of processing metal-containing ores.
It is known for certain that already five thousand years ago, people began to use metal crafts in everyday life. Naturally, at that time there were no complex technologies, however, by today, people have already mastered all conceivable and inconceivable methods of metal melting. Nowadays it is difficult to imagine any branch of the industry without metal products. Cold-rolled products are especially in demand.
Types of sheet metal
In accordance with the method of production of this or that product, as well as with its thickness, sheet metal is divided into:
- a variety of cold rolled sheets;
- hot rolled products up to 4 mm thick;
- hot-rolled sheets over 4 mm thick.
The first type of rolled metal is widely used in almost all areas of industry. Cold-rolled steel sheets are in demand in construction, for example, they are often used for roofing. Such products can be produced in the form of ordinary sheet or roll material. In addition, it can be given a special shape, say, profiled. Elements of cars, ships, wagons are made from cold-rolled sheet.
Rolls are also referred to similar products. In this case, cold-rolled metal products are coiled into bobbins. Product dimensions (thickness, length, width) are dictated by the task for which this material was produced. There are also such products as cold-rolled strips, which are indispensable in the manufacture of parts of various kinds, for example, in the furniture industry. The prepared elements obtained by cold rolling steel can subsequently undergo additional processing, for example, galvanized or covered with polymeric materials. With the help of such products, metal tiles, corrugated board, etc. are obtained.
Where is cold rolled sheet used?
The considered rolled metal can be applied:
- in cold forming processes;
- be profiled (the output is a profiled sheet);
- serve as a basis for the manufacture of roofing materials;
- to remain in the status of finished products, followed by the application of special anti-corrosion agents or paint;
- be galvanized or covered with polymer compounds;
- become a semi-finished product intended for the manufacture of a channel, bent angle, etc.
Well guys - still want? Okay ... ( http://www.td-artel.ru/shop/obshchestroitelnye-materialy)
