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ABS TPU Suzhou two-color mold
Classification:
Two-color mold
- Product Description
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The two important processes of Suzhou two-color injection molding are filling and holding pressure. Secondly, it explains how to control the pressure in the two-color injection molding process.
The two important processes of Suzhou two-color injection molding are filling and holding pressure. Secondly, it explains how to control the pressure in the two-color injection molding process.
1. Injection pressure
In the current two-color injection molding production, the injection pressure of most injection molding machines is based on the pressure applied to the plastic from the top of the plunger or screw (converted by the oil pressure). The role of injection pressure in injection molding is to overcome the plastic from The flow resistance of the cylinder to the cavity gives the melt filling speed and compacts the melt.
2. Plasticizing pressure
During injection molding, the size of the plasticizing pressure needs to change according to the design of the screw, product quality requirements, and the type of plastic. If these conditions and the speed of the screw remain unchanged, the plasticizing pressure increases and the shearing effect increases, that is, the temperature of the melt rises., But the efficiency of plasticization is improved.
In addition, increasing the plasticizing pressure can make the melt temperature uniform, the pigment is mixed evenly, and the gas in the melt is discharged. In general operation, the plasticizing pressure is determined to ensure the good quality of the product, the lower the better, and its specific value is used The variety of plastic two-color molding molds varies, but usually rarely exceeds 20kg/cm2.Key words:- 苏州双色模具
- 专业塑胶模具制造
- 塑胶模具设计制造
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