Plastics are widely used in daily chemical packaging, medical equipment, automobiles and in daily products. This article makes a brief introduction to these plastic connection technologies. Content is for reference of friends who are engaged in product structure design:
Tag: Insert molding
Nowadays, in automotive industry, it has become an inevitable trend for plastics to replace expensive metal materials. High-strength engineering plastics not only reduce cost of parts processing, assembly and maintenance, but also make cars lighter, energy-saving and environmentally friendly. According to data, plastics and their composites are the most important automotive lightweight materials. It can not only reduce quality of parts by about 40%, but also reduce procurement cost by about 40%. Therefore, its usage in automobiles has also risen rapidly in recent years, becoming "new darling" of automobile manufacturing.
Some molded parts are not partially broken, but only have fine cracks on the surface. According to difference in their degree and appearance, more serious ones are called cracks, and lighter ones are called microcracks. Cracks are same as microcracks. It looks very similar, but in essence it has two meanings of difference, that is, cracks are not defects like voids, because added stress is arranged in polymer itself in a parallel direction, so if it is heated, it can return without cracks. In this way, cracks and microcracks can be distinguished. Among them, micro-cracks are not only generated after molding; they also occur after being placed or in contact with solvent vapors.
Insert molding refers to a molding method in which a pre-prepared insert of dissimilar materials is put into a mold and then resin is injected, molten material is joined and solidified with insert to make an integrated product. Out-sert molding (out-sert molding) refers to a method of embedding injection molded parts on a part of a metal plate surface.
Gud Mould 