Body assisted injection molding is an innovation of traditional injection molding technology. This advanced technology involves injecting inert gas (usually nitrogen) directly into the mold cavity through a segmented pressure control system for plasticization, causing internal expansion of the plastic part and resulting in hollowing, while still maintaining the integrity of the product surface shape.
Gas assisted injection molding technology is widely used in the injection molding industry and can be applied to various plastic products, such as TV or audio casings, various types of plastic boxes and toys, automotive plastic products, kitchenware, household appliances, and daily necessities.
Compared with the traditional injection molding process, the gas assisted injection molding technology has the following advantages: it can save up to 50% of plastic raw materials; Shorten the production cycle time of products; Reduce the locking pressure of the injection molding machine; Reduce the pressure inside the mold cavity, minimize mold wear and improve the working life of the mold, thereby reducing the investment cost of the mold; Reduce the internal stress of the product and solve the problem of surface shrinkage marks; Simplify the tedious design of products; Reduce the power consumption of injection molding machines, extend their service life, and lower production costs.
Bottled nitrogen and liquid nitrogen on the market are relatively expensive and time-consuming, so using a PSA nitrogen generator is a good choice. The PSA nitrogen generator uses inexhaustible air as raw material, carbon molecular sieve as adsorbent, and applies the principle of pressure swing adsorption to selectively adsorb oxygen and nitrogen through carbon molecular sieve to separate nitrogen and oxygen. Compared with traditional nitrogen production methods, it has the characteristics of simple process flow, high degree of automation, fast gas production (15-30 minutes), low energy consumption, online detection of nitrogen purity, convenient operation and maintenance, low operating costs, and strong device adaptability. PSA nitrogen generator is an investment that uses gas all the time, with one click startup, achieving unmanned operation, saving labor and costs.
