Stainless steel coil plates should be understood. There are many types of cold rolled plates, which can be classified according to shape and size or according to processing technology. For example, the difference between C-shaped roof purlins and Z-shaped roof purlins depends mainly on the focus. Generally, C-type products are 90 degrees, while Z-type products cannot achieve such a focus, only about 60 to 75 degrees. Therefore, steel purlins are used differently with different inclinations.

In terms of function, the structural mechanical effects of the strong axis and the weak axis of the cold-drawn C-type roof purlin are quite different, so their structural mechanical effects must also be different. Therefore, during the processing process, there are strict regulations on the standards and material selection of cold-rolled plates. Steel frame structures with different cross-sections have different bearing capacities to support and adapt to different working conditions. Because of this purposeful application advantage, there are different products and great functional advantages in application.

At the same time, we must talk about the strength index of cold-rolled steel sheets, which is the ability of the material to withstand the pressure of hard objects on the surface. According to different test methods and application scale, cold rolled plates can be divided into Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness, microscopic strength and high temperature strength.

Use a bearing steel ball or cemented carbide ball of a certain diameter to press the Brinell hardness of the cold-rolled plate into the pattern surface using a standard testing force. After a standard holding time, remove the testing force and measure the imprint on the surface of the specimen. diameter. The Brinell hardness value is obtained by dividing the test force by the surface area of the impression ball. In the strength standards of cold rolled plates, Brinell hardness is widely used and easy to visualize.

In addition, the butt welds of stainless steel coils and cold-rolled plates are required to be butt welds in the flat welding direction, capable of high-speed welding, and have sufficient weld beads for single- and double-sided welding and double-sided forming. These aspects must be controlled by increasing the welding parameters and using single-pulse low-temperature plasma arc welding.

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Cherry
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