Semi Automatic Molding Products

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
Common injection molding product defects and solutions-2 Nov 08, 2019
Air traps the reason: 1. The injection speed is too fast. 2. Back pressure is too high. 3. Insufficient gas, gas encapsulation. 4. The flow channel size is too small. 5. The melt temperature is too high and it is necessary to reduce the shear. Solution: 1. Reduce the injection speed. 2. Clean the air trap in the trapped position. 3. Reduce the clamping force. 4. Reduce the pressure of holding pres...
- mold Filling
- plastic mold Filling
- injection molding machine
Design criteria for plastic injection mold runners Nov 08, 2019
Design criteria for plastic injection mold runners The runner is the first channel for plastic injection molding in the mold. Most of the plastic passes through here and then into the mold cavity and core. Therefore, the position of the runner should not affect the appearance of the product, and must meet the product assembly. When the mold uses pin-point gate, the hot runner plate should have a s...
- plastic injection molding
- hot runner mold
- plastic product mould
What is the difference between TPU extrusion and injection molding? Nov 20, 2019
Extrusion, also known as extrusion molding or extrusion, is also called extrusion in rubber processing. It means that the material passes through the action between the barrel and the screw of the extruder, and is plasticized while being pushed forward by the screw. A method of processing various cross-section articles or semi-finished articles by head. Injection molding is a method of prod...
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
Venting method for plastic Injection mold Nov 25, 2019
Today we are going to discuss several venting methods for the plastic injection mold: 1. Gate venting; 2. Parting surface venting; 3. Inserts and inserts pin venting; For inserts joint cavities or cores, they can be vented by their split gaps. 4. Ejector pin and ejector sleeve venting; The ejector pin and the sleeve are vented with the matching gap of the core. 5. Porcerax venting; Porcerax is a m...
- Porcerax venting
- injection molding
- plastic part mold
Common injection molding product defects and solutions-3 Nov 25, 2019
Short shot-1 the reason: 1. The injection pressure is too low. 2. The injection speed is too slow. 3. Injection time is too short. 4. The pressure is too small. 5. The pressure keeping time is too short. 6. The pressure holding switch position is too early. 7. The mold is poorly ventilated. 8. The mold surface temperature is too low. 9. The melt temperature is too low. 10. Material viscosity is to...
- mold Filling
- plastic mold Filling
- injection molding machine

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A total of 18 pages

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