Pipe fittings reducer heat treatment technology

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Update time : 2019-12-25 14:56:47

  In the process of shrinkage or expansion deformation pressing of pipe fittings reducer, cold pressing or hot pressing should be adopted according to the different material and diameter variation of the tube. Usually, cold pressing should be adopted as far as possible, but in the case of severe hardening caused by multiple diameter variation, hot pressing should be used for the material with thicker wall thickness. Diameter expansion is a tube with a diameter smaller than pipe fittings reducer's large end. The blank is formed by inner die along the inner diameter of the tube blank. The expanding process mainly solves the problem that ASME B16.9 Stainless Steel Pipe Fittings Reducer with larger diameter is not easy to be formed by shrinking. Sometimes, according to the forming requirements of materials and products, the methods of expanding and shrinking are combined.

  Hot-pressed tees are suitable for materials of low carbon steel, alloy steel and stainless steel. Especially for tees with large diameter and thick wall, this forming process is usually adopted. Besides using steel pipe as raw material to produce pipe fittings reducer, the hot-pressed tees have wide adaptability to materials. The sheet metal can also be produced by the stamping process. The shape of the stamping die used for drawing refers to the dimension design of the inner surface of pipe fittings reducer, and the blanked sheet metal can be stamped and drawn by the stamping die.

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