Mineral water is a kind of drinking product in our lives. It is very convenient to replenish water, especially when traveling and traveling. There are various brands of mineral water on the market, but for mineral water You definitely don’t know much about the production process of mineral water bottle caps, which are indispensable in water. Don’t worry, let’s take a look at the production process. The main points are as follows:

1. Injection molding bottle caps need to heat the material to a melt flow state with a temperature of about 250 degrees Celsius. Compression molding only needs to be heated to about 180 degrees Celsius. The energy consumption of injection molded bottle caps is higher than that of injection molded caps.

2. The compression molding processing temperature is low, the shrinkage is small, and the bottle cap size is relatively accurate.

3. Inject all the cavities at one time and extrude one bottle cap material at a time. The extrusion pressure for compression molding is very small, while injection molding requires relatively high pressure.

4. The injection mold is large in size and it is troublesome to replace a single cavity; each cavity in compression molding is relatively independent and can be replaced individually.

5. The compression molding capping machine is a special machine for bottle caps, and the bottle caps have a special demoulding design.