The role of preforms and the production process of plastic beverage bottles

The bottle preform manufacturer introduces that the bottle preform is before the bottle form. It has a thick, transparent tube that can be sealed with an ordinary plastic cap. Also, it cannot break and stand on the table. It can replace the tube in several ways.

Preforms are usually formed from hot runner molds. There is a heat shield between the mold and the mold of the injection molding machine. Its thickness is about 12 mm, and the insulating board needs to withstand high voltage. The exhaust gas needs to avoid local overheating or fragmentation, but the depth of the exhaust port should not be greater than 0.03mm, otherwise, it is easy to produce flash.

1. It can be used as an intermediate product, and it can be viewed better after production. If there is an unpleasant address, it can be modified concisely, and it will not become waste after completion.

2. It is easier to make, and we can send molds very well so that the seat can be made better.

3. The material of this kind of product is generally relatively simple to process, so our purpose is to save operating costs, and of course, it can also reduce the workload. In the mold, then naturally it can be better put into production inspection, and some mistakes can be saved so that better to protect the benefits of our seats.

It may be rare to see preforms, which are closely related to the plastic bottles we often use. In our daily life, we use various bottles. When we need to drink water, we probably use plastic bottles. As researchers, we may work with a variety of glassware. Therefore, the industry in which the bottles are produced is very important to us. We all know that bottles have to pass through preforms before being formed.

Plastic beverage bottle production process?

The production process of beverage bottles is divided into one-step method and two-step methods:

1. One-step method: Plastic particles are injected into the preform mold by heating and melting, and then cooled and shaped to become a semi-finished product (perform similarly to a test tube shape, also called a tube embryo). When the preform is not completely cooled, it is heated and adjusted, and then sent to Enter the blowing mold, the plastic of the bottle preform is evenly distributed by stretching and blowing the bottle, and it is close to the blowing mold. After the high-pressure blowing is completed, the cooling air is introduced. When it is completely cooled and shaped, the blowing mold is opened, and the beverage bottle is formed. .

2. Two-step method: divided into preform injection and bottle blowing.

preform injection: Plastic particles are injected into the preform mold by heating and melting, and then cooled and shaped to become a semi-finished product (perform similarly to a test tube shape, also called a tube embryo).

Blowing: The preform cooled to normal temperature is heated and adjusted, and then sent to the blowing mold. The plastic of the tube embryo is evenly distributed by stretching and blowing the bottle, and it is close to the blowing mold. After the high-pressure blowing is completed, the cooling air is introduced. , when it is completely cooled and shaped, the blow mold is opened, and the beverage bottle is formed.

30MM 30/25 PET Preform

NECK TYPE	NECK SIZE	WEIGHT	HEIGHT	QTY/CTN	CARTON SIZE
30/25	30mm	13g	84mm	1040	53x35x38
30/25	30mm	14g	84mm	1040	53x35x38
30/25	30mm	16g	92mm	1000	53x35x38
30/25	30mm	17g	92mm	1000	53x35x38
30/25	30mm	18g	92mm	850	53x35x38
30/25	30mm	19g	92mm	850	53x35x38
30/25	30mm	20g	94mm	850	53x35x38
30/25	30mm	21g	94mm	850	53x35x38
30/25	30mm	22g	106mm	760	53x35x38
30/25	30mm	23g	103mm	680	53x35x38
30/25	30mm	25g	103mm	680	53x35x38
30/25	30mm	28g	121mm	580	53x35x38
30/25	30mm	30g	121mm	580	53x35x38
30/25	30mm	32g	128mm	500	53x35x38
30/25	30mm	34g	128mm	500	53x35x38
30/25	30mm	36g	130mm	460	53x35x38
30/25	30mm	38g	133mm	460	53x35x38
30/25	30mm	40g	143mm	420	53x35x38
30/25	30mm	43g	147mm	420	53x35x38
30/25	30mm	45g	141mm	390	47x31x34
30/25	30mm	50g		380	50x38x28