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News

Mold processing materials should meet the six working conditions

  • Author:liuweiqiong
  • Source:liuweiqiong
  • Release on :2017-10-26
HC plastic mesh News: mold (plastic mold suppliers china) material selection is very important, if the material is not favorable, then developed the work performance was not much better. Mold processing materials must meet the requirements of the six working conditions:


1, wear-resistant blanks in the mold (aluminum die casting mold making) cavity in the plastic degeneration, along the cavity surface both flow and slide, so that the cavity surface and the blank between the sharp friction, resulting in die due to wear and failure. So the wear resistance of the material is one of the most basic and most important performance of the mold. Hardness is the main factor affecting wear resistance. Under normal circumstances, the higher the hardness of mold parts, the smaller the wear, wear resistance is also better. In addition, the wear resistance is also related to the type, quantity, shape, size and distribution of carbides in the material.

2, toughness mold working conditions are mostly very bad, and some often bear a greater impact load, resulting in brittle fracture. In order to prevent the mold parts in the work suddenly brittle, mold to have a high strength and toughness. The toughness of the mold depends mainly on the carbon content of the material, grain size and tissue state.


3, fatigue fracture performance Mold (precision casting China) work process, the long-term role in the cyclic stress, often lead to fatigue fracture. Its form has a small energy multiple impact fatigue fracture, tensile fatigue fracture contact fatigue fracture and bending fatigue fracture. The fatigue fracture properties of the mold are mainly determined by its strength, toughness, hardness, and the content of inclusions in the material.