The stretching of the stainless steel water cup production process, what is the purpose of stretching?

Regarding the processing method of the tube in the stainless steel water cup, the drawing process has been described in detail above. In addition to the drawing, there is also a stretching process. What is the stretching process? What is the purpose of the stretching process?

Regarding stretching, we use a more specific way to explain. The stretched liner is a method in which the stainless steel plate is repeatedly stamped, and the stainless steel pipe is gradually formed through the plasticity of the mold. The stainless steel water cup tube blank formed by the stretching process is seamless and the inner wall is clean.

The stretching process cannot be stretched in place at one time, especially when the diameter of the water cup is different from top to bottom, there will be obvious stretch marks. This is unavoidable, but it can be eliminated by polishing and other processes.

The stretching process has clear requirements for the wall thickness of the water cup, and the wall thickness should not be too thin, otherwise problems such as deformation and damage will occur.

Dongguan Zhanyi Commodity Technology Co., Ltd. currently accepts the processing and production of stainless steel water cups and kettles. We have 1 complete stainless steel pipe drawing machine and 2 stainless steel water cup production lines. In addition to the pipe drawing machine, it also has expansion machines, stretching machines, punching machines, shaping machines, etc.