1, Injection molding: the cornerstone of the plastic industry
Basic principle: Injection molding is a process of injecting molten plastic into the mold cavity, cooling and solidifying it, and then demolding it to obtain the desired shape of plastic products. This process begins with the heating and melting of plastic particles. The molten plastic is injected into the mold under high pressure. After the mold cools, the plastic solidifies and tightly adheres to the inner wall of the mold, forming the final product.
Application areas: Injection molding is widely used in multiple industries such as automotive, electronics, home appliances, medical, toys, etc. Injection molding is almost ubiquitous, from car bumpers to phone casings, from household plastic products to medical device components. It can produce plastic products with complex shapes, high precision, and large quantities to meet diverse market demands.
Global location: Injection molding technology originated in Europe and the United States in the early 20th century and rapidly developed with the rise of the plastic industry. Nowadays, injection molding factories are spread all over the world, especially in manufacturing powerhouses such as China, Germany, the United States, and Japan. Injection molding has become an important part of the plastic industry in these countries. As the "world factory", China's injection molding industry is at the forefront of global scale and technological level.
2, Die casting: Efficient production of metal components
Basic principle: Die casting is a method of forming metal parts by injecting molten metal into the mold cavity under high pressure, rapidly cooling and solidifying it. This process usually includes steps such as alloy melting, die casting, cooling, and demolding. Die cast parts have precise dimensions, high surface smoothness, and the ability to produce complex shaped components.
Application areas: Die casting is mainly used for producing metal parts in the fields of automobiles, motorcycles, electrical appliances, communication equipment, aerospace, etc. For example, key components such as automobile engine cylinder blocks, transmission housings, steering knuckles, as well as electronic product components such as phone casings and laptop frames, are typical applications of die-casting molding technology.
Global location: Die casting technology originated in Europe at the end of the 19th century, and later spread to the United States and Japan, gradually developing into a mature manufacturing process. At present, the global die-casting industry is mainly concentrated in Asia, Europe, and North America. China, India, Japan, Germany, and the United States are countries with high global die-casting production and technological level. Among them, China has become the world's largest die-casting production country with its huge market demand and cost advantage.
3, Blow molding: expert in manufacturing hollow plastic products
Basic principle: Blow molding is a process of obtaining hollow plastic products by blowing compressed air into a heated and softened plastic tube or sheet, causing it to expand and adhere to the inner wall of the mold, and cooling it down. Blow molding is divided into two types: extrusion blow molding and injection blow molding. The former is suitable for producing large containers, while the latter is more suitable for producing small, high-precision hollow products.
Application areas: Blow molding is widely used in various fields such as packaging, transportation, construction, agriculture, sports goods, etc. Blow molding technology plays an important role in packaging containers such as plastic bottles, barrels, and cans, as well as components such as car fuel tanks and bumpers, and leisure products such as amusement rides and outdoor furniture.
Global location: Blow molding technology originated in the mid-20th century and gradually became popular with the rapid development of the plastic industry. At present, the global blow molding industry is mainly distributed in Asia, Europe, and North America. China, India, Indonesia and other Asian countries have become the main producers of blow molded products worldwide due to their low labor costs and abundant raw material resources. Meanwhile, the blow molding industry in Europe and North America also maintains a high level of technology and market share.
