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· Effect of lubrication on product quality during pipe bend process
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Manufacturing process of different diameter reducer
Source :admin   Time:6/27/2018 10:47:59 PM   hit:

  The pipe reducer is a kind of pipe fitting used for changing the diameter of pipes. Usually, the forming process is reduction, pressing, expanding or pressing, and stamping can also be used for some diameter Ss304 Eccentric Stainless Steel Pipe Fitting Reducer.

  The shrinkage forming process of the tube is put into the forming die, which is equal to the diameter of the large end of the tube. By pressing along the axial direction of the tube, the metal moves along the die cavity and forms. According to the diameter of the pipe reducer, it is divided into one pressing or multiple pressing forming.

  The expanding die is made of tube blanks with large diameter smaller than the diameter of the pipe reducer, and the inner die is expanded along the inner diameter of the tube blank. The process of expanding diameter is mainly to solve the condition that the diameter of the pipe with large diameter is not easy to be formed by shrinkage forming, and sometimes the method of expanding diameter and reducing diameter is combined in accordance with the forming needs of materials and products.

  In the process of reducing or expanding deformation, cold or hot pressing is adopted according to different materials and variable diameters. Usually, the cold pressure is used as much as possible, but the condition of severe hardening, the thickening of the thickness of the wall or the material of the alloy steel should be hot pressed.

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