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The Manufacturing Processes for Plastic Products Sep 27, 2019
The manufacturing process of a plastic article refers to a process of making a final plastic article from a polymer manufactured by a synthetic resin manufacturer. Processing methods include: compression molding, extrusion molding, injection molding, blow molding etc. Detailed manufacturing process: (1) Compression Molding: Molding is also called press molding. It is mainly used for the mold...
Damage of Plastic Products Sep 27, 2019
What is damage of plastic product? and what is caused it? Damage of Plastic Product, means that product parting position or slider closing damaged There are three reasons caused this problem: 1. The angle is not enough, the position and size of the ejection are not enough. 2. Die surface treatment is not good, coating is not smooth, texture too thin or too thick. 3. During injection molding, the s...
- Plastic mould
- Plastic injection mold
- Plastic Products
What is the delamination of the plastic product? Oct 23, 2019
It means that products delamination like mica sheet, because different material is mixed, especially for different Shrinkage material. There are a few reasons caused this problem: 1. The melt temperature is too low, material couldn't conbine well. It may caused products delamination under ejected acting force. 2. The back presure is too low. 3. The material consistency is not so good. 4. Mat...
- Plastic injection mold
- Plastic Products
- plastic mould
Short shot Nov 20, 2019
We are going to talk about one of the most common problem during mould trial--short shot. The factor are as below: 1. It means that the cavity is not completely filled, caused the plastic parts incomplete; 2. The mold venting is not good; 3. The section of gate and runner is too small and long, The melt pressure loses too much during the flow; 4. The thin wall is not thick enough; 5. There is no c...
- Plastic mould
- Plastic injection mold
- Plastic Products
Short shot Nov 29, 2019
During last articl, We have talked about the factor caused short shot. Today, we are going to talk how to improve it. The improvements are as below: 1. Modify or improve venting structure; 2. Modify or improve gate system; 3. Increase section thickness; 4. Design a suitable cold well; 5. Increase injection speed appropriately; 6. Change the suitable injection machine; 7. Change a large nozzle; 8. ...
- Plastic moul
- Plastic injection mold
- Plastic Products
Injection Molding Machine System Dec 13, 2019
Today, we are going to talk about the plastic injection machine system, The daily products are basically molded by plastic injection machine, Some of them are produced by full automatic, some are by half manual, It depends on the customer's request or the product feature. The injection molding machine system include seven systems, as below: 1. Plastic injection system, 2. Opening...
- Plastic products maker
- Plastic injection machine
- Injection Molding
Welding Technology of Plastic Mold Jan 16, 2020
The most commonly used welding methods for plastic mold engineering parts are: high temperature tool welding, rotary welding, vibration welding, ultrasonic welding, and other methods: high frequency welding, induction welding, hot gas welding, laser welding, etc. In order to obtain high-quality and reproducible welding quality, a suitable welding method needs to be selected to optimize the welding...
Defects analysis of injection molded products - Bubbles Jan 17, 2020
Bubbles are the phenomenon of small volume or series of pores formed inside the product. A large amount of gas is mixed into the melt and is formed by cooling the melt. 1. Venting system is bad or blocked 2. The cooling system is not setting properly, which makes the material cooling uneven or insufficient. 3. The injection speed is too fast 4. The material temperature is too high, which will caus...
- injection molded products
- mould cooling
- plastic filling analysis

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