SHELLER.
Channel – one of the types of varietal metal rolling. This product is a metal-shaped metal beam. Channel have a wall and two shelves directed in one direction. They are classified in accordance with the brand of the used steel, size and length. The length of the channel is usually from 4.0 m to 12.0 m. At the same time distinguish the channel of measuring, multiple measured and unwell length.
Standards regarding the production of channels are presented in GOST 8240-97. Depending on what technology is used in production, the channels are divided into:
hot-rolled (correspond to GOST 535-88);
bent, made by cold bending method (cold -rolled method) on profile -wrap machines. In this case, roll rental is used.
You can distinguish the method of making a channel by type of external corner. The channel made in a cold -rolled way, this angle is rounded.
In the shape of the channels are produced, both with the faces of the shelves lying in parallel, and with the slope. In addition, the bent channel can also be equalized (in accordance with GOST 8278-83) and not equalized (correspond to GOST 8281-80). For the manufacture of both of these varieties, high -quality structural and low alloy steel is used.
Channel is widely used in the field of construction, heavy industry, as well as engineering.