What are the problems encountered when PET plastic bottle manufacturers blow molding?

Hello everyone, I am Wukong plastic products small editor. Today, we introduce plastic bottles. The following content is organized by Xiaobian, and the relevant content is for reference.

What problems do you encounter when blowing PET plastic bottles? When plastic materials are used to manufacture injection bottles,

 the following problems are often encountered, so today we will summarize the situations and solutions that are very easy to do throughout the process.

1, the current thickness of the situation, treatment: must delay the pre-blowing time, or reduce the pre-blowing working pressure, reduce the total flow.

2, the current thickness conditions, deal with: with a problem to solve the inverse problem.

3, there will be wrinkles on the lower side of the short plate, processing: pre-blowing too late or pre-blowing working pressure is too low, or the billet cooling here is not good.

4, the bottom white, treatment: the key reason is the bottle low temperature; The other is excessive rashes, too early pre-blow time or too high pre-blow pressure.

5, the bottom of the bottle appears high power mirror state, too much material at the bottom of the bottle, treatment: pre-blowing too late, pre-blowing pressure is too low.

6, the bottom of the bottle has wrinkles, the bottom temperature is too high (the entrance is not cold), treatment: too late pre-blown too low working pressure, the total flow is very small.

7, the turbidity of all bottles is low, treatment method: insufficient refrigeration.

8, part white: too much salad, processing: this temperature is too low, or too early, can not be blown in advance, or meet the bar.

9, the axial force at the bottom of the PET plastic bottle is related to the bottle temperature, drawing, pre-blowing and high pressure blowing. Treatment method:

 Firstly, the temperature of the billet should be reduced; Speed up the drawing speed; Check the gap between the support rod head and the bottom die; 

Delay the pre-blowing, reduce the pre-blowing pressure; Delayed high pressure blowing; After the solution, check whether the bottle will continue to be subjected to axial forces.