Injection molding is a common manufacturing process, and its principle is not complicated: the heated and melted material is injected into a mold like “injection”, and after it cools and solidifies, it becomes the product or part we need. The shape inside the mold determines the appearance of the final product. In order to ensure that the material can smoothly fill the entire mold and the product is strong enough, high pressure is usually applied during the injection process.
This seemingly simple process actually has a history of over 150 years. As early as 1872, the Hyatt brothers in the United States invented the first injection molding machine. Since then, injection molding technology has continuously evolved, and now it can achieve very precise, fast, and efficient production.
With the development of technology, injection molding is no longer just about plastics. Innovations such as micro injection molding, metal injection molding, multi material simultaneous injection molding, and automated production have been widely applied in the electronics, automotive, medical, consumer goods, and even toy industries. Because of its diversity and flexibility, injection molding has become one of the indispensable core technologies in modern manufacturing.
