At present, the plastic packing bottle in the application of all walks of life have good performance, according to the different industry, different purposes, different function , plastic molding process also change accordingly. The most common is blow molding process production of plastic bottles and injection molding process of making plastic bottles. But what is the difference between them?
First of all, on the surface could see at a glance, their processing technology is different, one is a blow molding process, and one is a injection molding process. These two kinds of process are need to manufacture of mould for forming.
Injection mould key features: through the design of the mould pouring runner, let molten state of the raw material is full of the cavity. Usually injection molding products structure is relatively complex, materials must be suitable for injection molding process, such as: PE, etc.
Blow molding key features: fast blown up performed bottles, blow molding mold clamping part can be in accordance with the mould for forming (similar to the injection mold), then pass into gas, the rest under pressure to expansion, the material will close to the cavity wall, then received the needed shape, the cavity wall graphics transferred to the material. The common drinking bottles(PET bottles) are made by blow molding process.
Blow molding key features: fast blown up performed bottles, blow molding mold clamping part can be in accordance with the mould for forming (similar to the injection mold), then pass into gas, the rest under pressure to expansion, the material will close to the cavity wall, then received the needed shape, the cavity wall graphics transferred to the material. The common drinking bottles(PET bottles) are made by blow molding process.
Finally, plastic bottle is often used in medical, chemical industry, agriculture, industry, etc. Blow molded bottle is often used in food, restaurant, hotel, drinks, etc. Such as: plastic reagent bottles, medicine plastic bottle, pesticides, such kind of plastic bottle by injection. But PET plastic bottles, food plastic packaging barrels, plastic beer bottles are blow molding process.
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