中文在线不卡视频 亚洲欧美全部性爱视频 亚洲熟妇乱与轮 久草国产精品

The working principle of the injection molding machine is similar to the syringe for the injection, which is injectively injecting a plasticized melting state (i.e., viscous state) in the form of a well-formed cavity. The process of obtaining the articles after curing the setting.

Injection molding is a loop process, each cycle mainly includes: quantitative feeding - melt plasticizing - pressure injection - reflar cooling - insulation pickup. After removing the plastic parts, it is re-formed, and the next cycle is performed.

Injection Molding Machine Operation Project: Injection Molding Machine Operation Project includes control keyboard operation, electrical control system operation and hydraulic system operation three aspects. The injection process movement, the feed operation, injection pressure, injection speed, the selection of the top-out type, the monitoring of the temperature of the tube, the injection pressure, and the back pressure pressure adjustment, etc..

The forming process of generally screw injection molding machine is: first add granular or powdered plastic to the cartridge, and heat the plastic by the rotation of the screw and the outer wall of the barrel into the molten state, then the machine performs the front shift of the injection and injection. Make the nozzle to close the castway of the mold, then pass into the pressure oil to the injection cylinder, so that the screw advances forward, thereby injecting the melt injecting the melt injecting the temperature in the closed mold of the melt injects with a high pressure and faster speed. Time and pressure retention (also known as pressure), cool, so that it can be solidified, it can be opened to remove the article (the purpose of pressure pressure is to prevent the reflux of the melt in the mold cavity, supplement the material into the mold cavity, and to ensure the product Has a certain density and dimension tolerances). The basic requirements for injection molding are plasticized, injection and molding. Plasticization is the premise of achieving and ensuring the quality of forming products, in order to meet the requirements of the molding, the injection must ensure sufficient pressure and speed.