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Automobile double drum rivet

Automobile double drum rivet

  • Classification:Automobile rivet
  • Views:second
  • Date of issue:2020-10-23 14:20:27
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Compared with traditional riveting, the cold rolling riveting method has 1 simultaneous interpreting features, and the rolling force of the cold rolling riveting is very small. It is only 1 / 10-1 / 15 of the riveting method such as hammering and stamping dies. Because the traditional riveting method is that the riveting rod exerts pressure on the bolt case, the working pressure becomes larger and larger as it approaches the pivot. However, the cold rolling riveting method uses continuous partial deformation to form the bolt. The pressure applied is more and more far away from the bolt management center, which is just in line with the natural law of raw material deformation. Therefore, the tonnage of machine and equipment required for cold rolling riveting method is very small and the cost is saved. 2. The cold rolling riveting method of waterproof lantern rivets makes the deformation of bolts follow the flow of metal materials, which is not easy to reduce the vacancy fracture toughness and plasticity of raw materials, and reduce the risk of excessive radial tensile stress around the bolt pier head. After riveting, the raw materials have no fracture chemical fiber flow, which can improve the bearing capacity of bolts. The destructive experiments of shaking cold rolling riveting, traditional hammering and stamping die riveting samples show that the compressive strength of cold rolling riveting is about 80% higher than that of traditional riveting. After cold rolling and riveting, the bolts basically have no deformation such as bending, bulging and pier thickness. In addition, there is no deformation of the components connected by automobile rivet manufacturers and bolts. However, hammering and stamping die riveting, because it is an example of exerting pressure and impact blooming, the disadvantages mentioned above are more obvious. 3. The cold rolling riveting head is turned over without dragging in the bolt. The roughness of the formed bolt only lies in the rivet head, and the roughness of the rivet head is very easy to ensure. Therefore, the surface of cold rolling riveting bolt is bright and beautiful, which is incomparable with other riveting methods.

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