What are bulk plastic bottle caps? Presumably, we are all familiar with it. Whether it's a drink bottle cap, a makeup bottle cap, or a plastic bottle cap, these are more common in our daily life. Do you want to know more about it? Next, we will have a detailed understanding of "the use of bulk plastic bottle caps and the introduction of the temperature standard of bulk plastic bottle caps mold".
1. Improving mouldability: Each plastic part has its own suitable molding bulk plastic bottle caps mold temperature. If the appropriate molding temperature can be maintained throughout the production process, the mouldability of the plastic parts can be improved. If the die temperature is too low, the fluidity of the melt will be reduced, the contour of the plastic parts will be unclear, and even the die will be unsatisfactory. If the die temperature is too high, the plastic parts will be deformed during and after demoulding, which will reduce the shape and size accuracy.
2.Shrinkage rate of molding: The constant temperature of molding can be maintained using temperature regulating system, which can effectively reduce the shrinkage fluctuation of molding and improve the qualified rate of molding. The allowable low die temperature can reduce the shrinkage of plastic parts, improve the dimensional accuracy of plastic parts, shorten the forming cycle and improve production efficiency.
3. Controlling the deformation of plastic parts: the excessive temperature difference between the core and the cavity of the mold will make the shrinkage of the plastic parts uneven, resulting in the warping deformation of the plastic parts, especially for the plastic parts with uneven wall thickness and complex shape. The appropriate cooling circuit should be adopted to ensure uniformity of mold temperature to eliminate warping deformation of plastic parts.
4.Dimensional stability: For crystalline plastics, the use of high modulus temperature is conducive to the crystallization process, avoiding changes in size during storage and use. For flexible plastics, the use of low die temperature is conducive to the stability of the size of plastic parts.
5. Mechanical properties: Proper die temperature can improve the mechanical properties of plastic parts. Excessive low die temperature will increase the internal stress of plastic parts and produce obvious weld marks. For rigid plastics with high viscosity, the stress cracking phenomenon can be greatly reduced by using high die temperature.
6. Appearance quality: Low mold temperature will make the contour of the plastic parts unclear, obvious defects such as silver wire and more, and the surface is not, relatively rough. By properly increasing the temperature of bulk plastic bottle caps mold, the appearance quality of plastic parts can be effectively improved.