News

Home page

2023

How much do you know about the criteria for qualifying injection molds?

Plastic products are basically manufactured through the injection molding equipment, but in this process will be used in the injection molding process, mold advantages and disadvantages, is able to directly affect the quality of injection molded products, the following follow the editor to take a look at the injection mold qualified standard content.

First, wear resistance

1. billet in the injection mold cavity in the plastic denaturation, along the outside of the cavity is both active and sliding, will make the outside of the cavity and the billet between the intense friction, thus leading to the mold due to wear and tear.

2. Mold wear resistance is one of the important points. Hardness is an important identity that affects the wear resistance.

3. Under normal circumstances, the higher the hardness of the mold machine, the less wear and tear, the better the wear resistance. In addition, wear resistance is also related to the variety of carbides in the capital guess, number, state, size and distribution.

Second, strong toughness

1. injection mold processing mold things most of the premise is very stubborn, some often suffer a large blow load, thus incurring brittle fracture. In order to avoid the mold machine in things suddenly brittle, hardware mold to have high strength and toughness.

2. The toughness of the mold depends on the carbon content, grain size and structure of the material - mold manufacturing.

Third, the fatigue fracture function

1. injection mold processing mold in the process of use, under the long-term effect of rotational stress, every time to incur fatigue fracture. Its factors are small energy repeated strikes fatigue fracture, tensile fatigue fracture fighting fatigue fracture and bending fatigue fracture.

2. The fatigue fracture function of the mold depends on its strength, toughness, hardness, and the content of inclusions in the guess.