Plastic accessories are very common in our lives, and m […]
Plastic accessories are very common in our lives, and many products are composed of a variety of plastic accessories. Plastic parts are a part that cannot be ignored. Let's briefly analyze the factors that affect the processing of automotive plastic parts.
The heat loss during the processing of plastic parts is an important aspect that must be considered. Usually, the heat loss is caused by the uninterrupted transmission. In the injection molding process, there are three main ways of heat transfer: radiation, convection and conduction. In addition to most of the heat being absorbed by the mold, part of it is dissipated into the air through radiation and convection.
When the plastic parts are processed and molded, the heat utilization rate needs to be increased, and when the molding is cooled, the temperature needs to be lowered quickly. This requires cooling the mold on the battlefield. The cooling medium is usually water, and the reason is the price of water. Low, the cost is naturally low, and the water source after cooling can be recycled. But after all, everything has pros and cons. The low price and recyclable options make it only used as a primary coolant.
If you want to achieve the best cooling effect, you still need a cold mold to play. Here we need to remind you that the colder the coolant is, the better, the material will be reversed, and excessive cooling may have the opposite effect.