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Ordinary steel sheet supplier china tells the knowledge of cold bending process of steel plate

  • Categories:Industry News
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  • Time of issue:2021-12-08 17:28
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(Summary description)The control of the roll cold bending speed and the adjustment of the pressure of the forming roll should be appropriate to minimize repeated cold bending fatigue cracks, lubricate and cool appropriately, and further reduce the occurrence of thermal stress cracks, etc., control the bending radius, that is, the bending radius should not be too large. Small, otherwise the product surface is prone to cracks.

Ordinary steel sheet supplier china tells the knowledge of cold bending process of steel plate

(Summary description)The control of the roll cold bending speed and the adjustment of the pressure of the forming roll should be appropriate to minimize repeated cold bending fatigue cracks, lubricate and cool appropriately, and further reduce the occurrence of thermal stress cracks, etc., control the bending radius, that is, the bending radius should not be too large. Small, otherwise the product surface is prone to cracks.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2021-12-08 17:28
  • Views:
Information

How much do you know about the cold bending process of steel plates? Follow the editor of Ordinary steel sheet supplier china to have a simple understanding!
1. Because the high-rigidity steel formed by the high-strength plate has a large moment of inertia and flexural modulus, especially because of the application requirements, it is necessary to perform cold bending processing after pre-punching, which will form the surface flatness and material edge of the material. Due to the difference in size, it is required to add more lateral positioning devices in the cold-formed pass design of this type of high-strength structural steel plate, rationally design the pass, rationally arrange the roll gap, etc., to ensure that the material entering each pass does not escape Deviation and eliminate as much as possible the influence of the difference in the surface flatness of the material and the size of the material edge on the subsequent cold-formed shape;


2. The control of the roll cold bending speed and the adjustment of the pressure of the forming roll should be appropriate to minimize the fatigue cracks of repeated cold bending, lubricate and cool properly, further reduce the occurrence of thermal stress cracks, etc., control the bending radius, that is, the bending radius It should not be too small, otherwise the product surface is prone to cracks. Aiming at the post-ductile fracture phenomenon of the high-strength plate in the cold forming and cold bending process, in order to meet the structural design requirements, it is recommended to optimize the cross-sectional shape under the premise of meeting the mechanical design requirements of the material, such as Increasing the corner radius, reducing the cold bending angle or enlarging the cross-sectional shape is also an effective method.
The above is the editor of Ordinary steel sheet supplier china: a brief introduction to the relevant knowledge of the cold bending process of steel plates.

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