How to make a perfect plastic injection mold and injection molding is always our goal.

SAFEGUARDING THE MOLD Molds are very pricey tools. They might need many hundreds (and perchance thousands) of hours of engineering and creating prior to they are prepared to be applied for manufacture requirements. Destroyed molds lead to financial obligations to the molder and consumer, not only in fix expense, but in dropped fabrication and machine …

It is safe and sound to mention that any plastic mold will need a great amount of fix for deterioration taking place throughout the utilize or storage of that mold. The harder it is employed, or the longer it is kept, a lot more damage will happen. Damage that happens at the time of employ …

Plastic material identification Judging thermoplastics and thermosets: All thermosets have no softening process when heated or burned, only become brittle and coked; All thermoplastics, which are heated or burned, undergo a soft melting process, but different plastics burn. The phenomenon is different. pp PP burns slowly, the upper end of the flame is yellow, the …

Gas-assisted injection molding is an innovative technology developed on the basis of traditional injection molding. . GIM (Gas-assisted injection molding) was adopted in production  since 1980s. It is currently widely used in Europe and North America, Japan and South Korea, and many manufacturers in China have also adopted this new technology. The principle of gas-assisted …

There are many classification for plastic injection molds. According to the basic injection mold gating system, it can be divided into three types: Two-plate mold; Three-plate mold; Hot runner mold, also called runner-less mold. Other plastic molds, such as side core pulling mechanism,  core-unscrewing  de-molding mechanism,  are evolved from these three types of molds.   …

Hot runner system can be seen as an extension of injection molding machinery. The function of the hot runner system is to thermally insulated to send the thermoplastic melt to the plastic mold. The hot runner can be heated independently while it is thermally insulated in the injection mold, which can compensate for heat loss …

The Difference between insert molding and Double Color molding The so-called two-color injection molding refers to the molding method of injecting two kinds of plastics with different colors into the same mold. It can make the plastic parts with two different colors, and can make the plastic parts show regular patterns or irregular patterns, so …

Acrylic is also called polymethyl methacrylate (PMMA). Due to the defects , such as low surface hardness, easy scratching, low impact resistance and poor molding fluidity, the modification of PMMA appears alot. Such as copolymerization of methyl methacrylate with styrene and butadiene, mixing of PMMA with PC, etc. The flow of PMMA is worse than …

The problem of sink marks of plastic injection parts (surface shrinkage and internal shrinkage) is due to the insufficient melt replenishment when the thick part is cooled. We often encounter these sink mark problems, no matter how to increase the pressure, increase the water lines numbers,and extend the time of the injection, the shrinkage problem …

The plastic mold can be viewed as an exchanger that carries the heat of the hot melt away from the plastic mold by the circulating refrigerant. The role of the cooling system  1. Improve productivity 2. Ensure the effective of a mold In the whole cycle of thermoplastic injection molding, the mold cooling time accounts …

1234...