Automotive plastic mold processing key:

1, in the mold, the miniature injection molding on the need for processing equipment is much higher than the traditional injection:
Micro-injection in the mold processing generally have two trends: the first is the choice of mirror spark machine processing, in order to ensure high precision, the best use of graphite electrodes for EDM, because the loss of graphite electrode than the average copper electrode to Much smaller. The second comparison of commonly used processing method is the use of electroforming mold, the choice of electroforming technology to ensure a very high accuracy, but the defect is the processing cycle is long, each hole should be independent processing, as well as in the production if there is a slight damage can not be amended , Can only replace the damaged acupuncture points from scratch.

2, in the mold, mold temperature is also a very important micro injection molding parameters. Facing the needs of high-end customers, the current comparison of the practice is to use the concept of high-light injection category, the introduction of rapid heating and cooling system.

In theory, the high mold temperature on the micro-injection is very helpful, for example, to avoid thin-walled filling difficult, lack of material, but too high mold temperature will bring new questions, such as extended cycle and shortened deformation after opening. So the introduction of a new mold temperature control system is appropriate important in the process of injection molding temperature can be improved (to go beyond the melting point of plastic used), making the melt can quickly fill the cavity, to avoid the melt in the filling process temperature drop Too fast and the formation of incomplete filling; and when stripping, the mold temperature can be agile decline, maintained at a slightly lower temperature than the plastic heat distortion temperature, and then open the mold out.

In addition, the automotive plastic mold processing because of micro-injection molding is the quality of milligrams of the product, if the general use of pouring system to injection products, even after making the optimization to improve the products and pouring system within the material quality ratio Still 1:10. As long as less than 10% of the material is injected into a micro-products, a lot of pouring system condensate, so the miniature injection of warm runner selection system.