Product
Contact
Dongguan Jiahaojin Industrial Co., Ltd.
Contact：Liu sheng
Mobile：13802254172
Tel：0769-81316780
Website：www.jiahaojincom
Address：Jinlan business building in Changan town of Dongguan City
Common problems
The surface treatment and life of the screw of the injection molding machine
Author：admin Addtion Date：2018-04-16 View：641
We have repeatedly stressed that the screw machine barrel is the most critical and most soul component of the injection molding machine. In the injection processing production, the plastic material is entered into the injection machine barrel by the tail, and the screw is told to rotate in the cylinder. The plastic particles and their fillers are pushed forward, and the plastics are mixed and plasticized in advance, and the head of the screw is injected into the cavity of the screw. At this time, the barrel and screw are subjected to certain high temperature and high pressure, different plastics, and the working temperature of the injection machine screw is also different. Because of the excessive wear and tear of the screw barrel, the gap is too large to squeeze normally. This leads to lower melting rate and pumping capacity resulting in uneven material temperature and pressure fluctuations, which reduces the quality of the products and reduces productivity and increases energy consumption. The screw is more prone to failure than the cylinder. 1., the failure mechanism of screw and the factors that affect the service life of the screw. The working temperature of screw injecting screw is worse than that of screw under working conditions. The temperature is generally above 200. It not only bears the high pressure during injection, but also bears the abrasion of molten material and the frequent load starting during pre molding. The screw is also subjected to great pressure and torque during its working process.
Up Page：none
Next Page：The functional characteristics of the exhaust screw
