How To Distinguish Between Good And Bad Auto Injection Parts
May 04, 2022
As a flowing medium, gas has properties that liquids do not have, that is, gas can be compressed. If there is no container restriction, the volume of gas will not be restricted. It is because of the special properties of gases that they are widely used in the industrial field. For example, gases can act as a medium for heat transfer: in power plants, gases can be used to transmit force. Due to the wide range of air sources, most of the atmospheric composition is nitrogen, so if there is no special demand in the industry, compressed air, nitrogen, etc. can be used as the required gas, which will help reduce pollution in industrial production and can be recycled.
Mold, process and forming resin material are the three core components of injection molding technology. After the resin material is selected, the design and process control of the injection mold have a direct impact on the quality of the molded product. With the development of science and technology, gas is also used in injection mold structure and process control. For example, the release mechanism in the injection mold can be ejected by gas to realize the release action, and the cylinder can be used to realize the reset action; in the process control , Compressed nitrogen is introduced into the cavity during the re-forming and filling stage, which plays a role in maintaining pressure.
The price of injection molding parts for automobiles is first determined by the raw materials used. Under the same thickness, size and shape, the blister products made of PET materials are the most expensive, followed by PVC materials, followed by PS materials, and PP with a lower cost. Material. The two major factors that affect the price of blister products are the size and height of the product. The larger the size, the higher the price, and the higher the height, the greater the unit price. So how to distinguish the quality of the raw materials of blister processing products?
First look at the appearance. If the raw material has rough appearance, forming defects, incorrect color, impurities, and poor quality, do not use it. The color of the new blister-processed plastic is relatively pure and the purity is high, while the old plastic is mostly dark in color and the color is not correct. To put it simply, raw materials are generally transparent, while zai raw materials are not transparent. Many colors are mixed together, and black is the main color.
Next is the smell. The main reason for the odor of raw materials for blister processing is the use of recycled materials and inferior additives. The irritating odor emitted by products with peculiar smell will harm the respiratory system of the human body, so do not use it.
