Cpu Cooler

The reason why the gate of injection molding products is easy to produce gas marks or jet marks may be caused by the following aspects: 1. Uneven plastic flow: The gate is the first place where plastic is injected into the mold, when the plastic flows into the mold, the flow speed, pressure and temperature will change, if these factors are not uniform, it will lead to uneven plastic flow at the gate, forming pores or jet marks. 2. Unreasonable mold design: Mold design is also one of the factors affecting the gas or jet pattern at the gate. If the design of the mold is not reasonable, such as the improper location of the gate, or the mold cavity design is not reasonable, it will cause the plastic flow at the gate to be uneven, resulting in gas or jet marks. 3. Plastic material is not suitable: Different plastic materials have different mobility and shrinkage rates, if the selected plastic material has poor mobility or high shrinkage rate, it is easy to produce gas or jet marks at...

1. The problem of plastic raw materials. If the plastic raw materials used contain water or other volatile substances, during the injection molding process, these water or volatile substances will be heated by high temperature and high pressure, evaporate into gas, and form bubbles. 2. Injection molding machine problems. If the operation parameters of the injection molding machine are set improperly, such as the injection temperature is too high or the injection speed is too fast, it will lead to the generation of bubbles. In addition, if the pressure of the injection molding machine is unstable or insufficient, it will also cause the air to be unable to discharge the mold and form bubbles. 3. Mold problems. If there are burrs, grooves and other defects on the inner surface of the mold, or the mold opening is not tightly sealed, bubbles will be generated during the injection molding process. 4. Problems with the injection molding process. During the injection process, the injec...

Injection molding process conditions of injection molding products mainly include the following aspects: 1. Temperature conditions: Injection molding needs to heat plastic particles to a melting state, and generally the injection molding machine will set the heater of the heating cylinder, the cylinder and the mold to provide heating conditions. Different plastic materials require different heating temperatures, and usually need to be tested before production to determine the appropriate temperature conditions. 2. Pressure conditions: Injection molding needs to apply a certain pressure in the mold, so that the plastic can fully fill the cavity of the mold, and can maintain a certain pressure time to prevent the production of shrinkage holes, bubbles and other defects. The size of the pressure should be set reasonably according to the pressure range of the injection molding machine and the shape and size of the product. 3. Injection speed condition: Injection speed refers to the...

In today’s modern industrial production, plastic injection molding technology has become extremely important. Injection molding plays an irreplaceable role in the fields of home appliance shell, auto parts, medical equipment, and household necessities. However, many companies often face a problem in the production process: how to ensure the accuracy of injection molding products? Today, we will discuss the factors that affect the accuracy of injection molding products , and share the secrets of improving accuracy for you. 1. Design molds and make molds Mold is one of the key components of injection molding, and its design and manufacturing quality directly affect the accuracy of the final product. Scientific and reasonable mold design can ensure the uniform flow of plastics in the mold, reducing the possibility of defects and deformation. The key to ensure the service life of the mold and the accuracy of the product is the high-precision mold processing and heat treatment process. ...