Having learned to melt iron and other metals, people began to make various products from them. Metal products have become widespread already in those distant times when they have not yet been put on the flow of their manufacture, when they were conjured in blacksmiths, and not in production workshops over the manufacture.
What attracted humanity to this natural material? Of course, its wonderful properties. After all, the metal has a number of useful properties – strength, wear resistance, durability, etc.p. It is easily processed, practically it can be given any form. Blacksmiths made masterpieces from metal that even a sculptor could envy.
To create their own masterpieces, they often needed very thin sheets of iron, so with the help of hammer and sledgehammer, the blacksmiths had to plunge the workpieces of metal. Thus, they received tin or, as it is now called, sheet steel. Of course, it was a very long and laborious process.
Since subtle iron became more and more in demand every year, I had to think about its production on an increased scale. At first, equipment for forging sheets on a production scale was created, and then the first rolling mills also appeared.
The minimum thickness of the first rolling sheets was only 0.8 mm. Such a thickness often did not satisfy the needs of customers, and the sizes of the sheets were small. Therefore, I had to continue the improvement of machine tools.
As for modern equipment, it makes it possible to produce sheets with a minimum thickness of 0.25 mm, while the length of such sheets, as a rule, is not limited.
What is a modern sheet of hot steel sheet and where it can be purchased? You can find more complete information on these questions on the Kaumars website.
In this article we will dwell in more detail on its production technology.
There are several methods of obtaining leaf fabric, but the most popular for today is hot rolling. To provide the sheet with good strength and plasticity, alloying additives are introduced into the steel.
The process itself occurs in the following sequence:
Mud removal (steel blanks are cleaned).
Surfacing (further work with blanks requires aligned planes).
The desired shape and thickness of the workpiece is heated and passed through various mechanical rollers.
The metal sheet released at the enterprise must be completed by classification and labeling.
There are the following designations:
Accuracy
Increased accuracy – “a”
Normal accuracy – “b”
Type of edge
Toleled edge – “o”
Uneducated edge – “but”
Flatness
Particularly high – “software”
High – “PV”
Improved – “PU”
Normal – “PN”
In addition to the hot metal rolling method, there is still cold, but cold -rolled steel is a more expensive material.
