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Analysis of the causes of swelling and bubbling of injection molded products Oct 12, 2019
Some plastic parts quickly swell or swell on the back of the metal insert or in a particularly thick part after the mold is demolded. This is because the plastic that is not completely cooled and hardened is caused by the expansion of the gas under the action of the internal pressure. solution: 1. Effective cooling. Reduce the mold temperature, extend the mold opening time, and reduce the drying a...
- injection molding machine
- mold Filling
How to choose injection mold supplier? Oct 23, 2019
Here two tips to choose mold in China. 1. The characteristic of foreign capital mould manufacturer is management standard, flow is perfect, service consciousness is strong, quality and service have assure, but its indirect cost and sale cost are quite high, because this mould develops cost to will rise accordingly.If you have strong financial ability, and want to find a company that can prov...
- China mold
- Dongguan Mold factory
- Guangdong Shenzhen Mould supplier
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
Six commonly used material in plastic injection mold industry Oct 25, 2019
PE, PA, PP, PVC, ABS, PS are commonly used material in plastic injection mold industry 1. PE is a polyethylene plastic with stable chemical properties. It is usually made into food bags and various containers. It is resistant to acid, alkali and salt aqueous solutions, but it should not be wiped or soaked with strong alkaline detergent. 2. PP is polypropylene plastic, non-toxic, odorless, ca...
- electrical parts mold
- tool holders mold
- nylon plastic part
How to get a high quality injection molding part when we process injection mold? Oct 25, 2019
The ultimate purpose of well controlled the processing procedure of injection mold is to produce high quality injection parts. To reach this goal, what should we pay attention? 1. The defect of product surface not allowed: short shot, burn mark, ejector marks, white lines, flash, bubbles, pulling lines (pull cracks/snap), wrinkle etc. 2. Welding lines: generally speaking, for circle punch, t...
- mold processing procedure
- injection defect
- sink mark
Common injection molding product defects and solutions-1 Oct 25, 2019
Ejector marks the reason: 1. The thimble is too fast. 2. Cooling time is too long or too short. 3. The pressure holding switch position is too late. 4. The pressure is too high. 5. The pressure keeping time is too long. 6. The draft is not enough. 7. The thimble position design is unreasonable or too little. 8. The direction of demoulding is rough and the degree of polishing is not enough. Solutio...
- mold Filling
- injection molding machine
- plastic mold Filling
The common problems in injection molding of PC injection molds Nov 01, 2019
Everyone in the mold industry knows that pc injection molds will encounter some quality problems in one or the other during injection molding. Why do the same set of molds have different effects on products with different materials? This is due to the difference in the performance of the PC injection mold and the plastic material used for the injection molding. The pc material is relatively ...
- pc injection molds
- PC+ABS plastic molding
- Hot nozzle mould
What should you pay attention to when testing the injection mold? Nov 01, 2019
In daily life, the plastic products we use, such as lunch boxes, plastic bowls, plastic seasoning boxes, such as remote control shells, mobile phone cases, computer cases, etc. are all from injection molding. According to statistics, 60%-80% of products in daily life come from injection molding. Whether the mold opening and closing of the injection mold is smooth, whether the mold is ejected smoot...

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