How much do you know about the qualified standards for injection molding processing molds?

Plastic products are basically manufactured through injection molding processing equipment, but injection molding processing molds will be used in this process. The quality of molds can directly affect the quality of injection molding products. Let's follow the editor to take a look at the injection molding processing molds. Qualified standard content.

I. Wear resistance
1. When the blank is plastically deformed in the cavity of the injection molding mold, it both moves and slides along the outside of the cavity, which will cause intense friction between the outside of the cavity and the blank, thus causing the mold to take effect due to wear.
2. Mold wear resistance is one of the important points. Hardness is an important factor affecting wear resistance.
3. Under normal circumstances, the higher the hardness of the whole mold machine, the smaller the amount of wear and the better the wear resistance. In addition, the wear resistance has nothing to do with the variety, number, state, size and dispersion of carbides in the assay.

II. Strength and toughness
1. The premise of injection molding molds is mostly very stubborn, and some of them often suffer from heavy impact loads, which leads to brittle fracture. In order to avoid the sudden brittle fracture of the whole mold machine during the event, the precision metal mold must have high strength and toughness.
2. The toughness of the mold depends significantly on the carbon content, grain size and structural conditions of the material-precision mold manufacturing.

III. Fatigue fracture function
1. During the use of injection molding molds, under the long-term action of wheel response force, fatigue fracture is often caused. The factors include small energy repeatedly striking fatigue fracture, stretching fatigue fracture, fighting fatigue fracture and tortuous fatigue fracture.
2. The fatigue fracture function of the mold depends significantly on its strength, toughness, hardness, and the content of inclusions in the mold.

IV. Low temperature function
1. When the mold is used, the temperature is relatively high, which will lead to a decrease in hardness and strength, thus causing mold wear or plastic deformation.
2. Precision injection molds need to have high stability against tempering to ensure that the mold can have high hardness and strength at temperature.