Custom PMMA Injection Molding,PMMA Injection Molding Manufacturers

Know about Polycarbonate Sep 17, 2019
PC is an amorphous engineering material with exceptional impact strength, thermal stability, gloss, bacterial inhibition, flame retardant properties and stain resistance. The otched Izod impact stregth of the PC is very high, and the shrinkage rate is very low, generally 0.1 to 0.5%. PC has good mechanical properties, but its flow characteristics are poor, so the injection molding process of this ...
Splay Mark of Plastic Products Sep 17, 2019
Splay mark is a normal problem during manufacture plastic products. There are a few reason cause this problem: 1. The material contains water, drying time is insufficient. 2. Weld back pressure is too small or no back pressure. 3. Venting is not so good. We need keep to drying the material, Increasing back pressure, Improving the mould venting.
- Plastic mould
- Plastic injection mold
- mould venting
Analysis of the Causes of the Shock Pattern of Injection Molding Products Sep 23, 2019
Rigid plastic parts such as PS form a dense corrugation on the surface near the gate, centered on the gate, sometimes called a shock pattern. The reason is that when the melt viscosity is too large and the mold is filled in a stagnant form, the front end material quickly condenses and shrinks as soon as it contacts the surface of the cavity, and the subsequent melt expands the contracted cold mate...
- mold Filling
- injection molding machine
- plastic mold Filling
Actual Case Analysis of Poor Shrinkage (4) Sep 23, 2019
1. Basic information: PMMA Case, shrinkage 2. Description: Using a injection machine with a clamping force of 70 tons (screw diameter of 32 mm, maximum injection amount of 115 g: GP-PS), whether a molded part with a weight of 179.6 g and a thickness of 17 mm can be molded is tested. do. The main problems are as follows: (1) The amount of injection is not enough. In order to solve this problem, we ...
- PMMA case mould
- PMMA injection molding
- plastic molded part
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
Four major engineering materials in the plastic injection mold industry Oct 12, 2019
ABS, PA, PC, POM are the four major engineering materials recognized by the national standard in the plastic injection mold industry. 1. ABS: It has excellent impact resistance and does not drop rapidly at low temperatures. Even at -40 degrees, it has a very good toughness. The biggest use ABS is as pipelines to transport gasoline, crude oil and water. 2. PA: The biggest feature is low friction co...
- plastic injection mold
- plastic molded parts
- gears maker
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
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

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