Mold temperature refers to the mold cavity surface temperature in contact with the product during injection molding. Because it directly affects the cooling rate of the product in the mold cavity, and thus has a great influence on the intrinsic performance and appearance quality of the product. In this paper, five points of influence of mold temperature on quality control of injection parts are discussed. The content of the package material system for excellent products is adopted for friends' reference
The process conditions of injection molding have been explained on the official website of Huanke Precision. Today, Huanke Precision will continue to talk about another important factor affecting the quality of injection molding parts: action time, that is, the molding cycle of plastic products.
Injection molding factory injection molding product processing common defects and treatment methods
Injection molding factories often encounter products with insufficient gloss when processing injection molded parts. Low gloss means the surface is dark and dull, and the transparency of transparent products is low. There are many reasons for poor gloss. General product surface gloss defects can be divided into the following three types: mold failure, improper molding conditions, improper use of raw materials.
In the process of injection molding, if it is found that the geometric shape of the plastic product is unstable and the error of the external dimension is relatively large, it may be that the compression ratio of the inner cavity of the mold is relatively small; the length of the molding part of the mold die is relatively small; the sizing sleeve is deformed or the mold is The specific temperature is not uniform.
Reasonable mold structure. The principle of mold design is to ensure sufficient strength, rigidity, concentricity, neutrality and reasonable blanking gap, and reduce stress concentration to ensure that the parts produced by the mold meet the design requirements, so the main working parts of the mold (such as The convex and concave dies of the punching die, the movable and fixed dies of the injection mold, the upper and lower dies of the die forging die, etc., require high guiding precision, good concentricity and reasonable blanking clearance.
