China OEM Precision Plastic Injection Molding Mold Manufacturer for Plastic Enclosures

The working principle of injection molds is based on the thermoplastic properties of plastics and the injection pressure of injection molding machines. Firstly, plastic particles are heated and plasticized inside the barrel of the injection molding machine, forming a molten state. Then, the injection molding machine injects the molten plastic into the mold cavity through high pressure. In the mold, the plastic is cooled and solidified to form the desired shape and structure. Finally, by opening the mold, the formed plastic product is taken out of the mold.

Injection molds can be classified based on different molding characteristics and processes. According to the molding characteristics, injection molds can be divided into two types: thermosetting plastic molds and thermoplastic plastic molds. According to the molding process, injection molds can be divided into transfer molds, blow molds, casting molds, hot forming molds, hot pressing molds (compression molds), and injection molds. Among them, injection molds can be divided into two types based on the different pouring systems: cold runner molds and hot runner molds.