Injection moulding of Air Cooler Mould manufacturer is […]
Injection moulding of Air Cooler Mould manufacturer is a complicated process. The advantages and disadvantages of injection products involve thermophysics, thermodynamics, rheology, heat transfer, physical and chemical changes accompanying the process, especially phase changes, correct mechanical design and implementation of the best process.
In injection moulding, how to determine the injection cycle is not only related to the quality of the product but also affects the yield and cost of the product. The necessary heat is transferred from the plastic melt injected into the mould cavity to make it become solid so as to be taken out of the air cooler mould without deformation. Therefore, to correctly estimate the injection cycle is the main process parameter that should be determined in injection moulding.
1. Close mould pressing: in principle, the total pressure of the plastic injected into the mould should be greater than that of the plastic, with no burrs as the benchmark.
2. The pressure and speed are partly the same and act on the mould. The purpose is to make the raw materials enter the mould evenly, thoroughly and properly and fill all corners. Too low will cause short shot, shrinkage, too high burrs, over-saturation, mould sticking, scorching, vulnerable air cooler mould and high internal stress.
3. Speed: The speed determines the condition of raw materials in the runner of the air cooler mould and in the finished product, such as burrs, over-saturation, scorching, short shot, shrinkage, poor combination, easy breakage, etc.
4. Temperature: different raw materials, different temperatures, uneven color of the solution glue at too low a temperature, increased internal stress of the finished product, fracture of the screw rod due to too low a temperature and too high a pressure, burrs in the product, temperature difference caused by cooling, shrinkage, decomposition, yellowing, discolouration, easy fracture, longer cooling time, and difficulty in exhausting gas.