The price change of injection molding machine is normal, so we need to treat benign purchase rationally
Injection molding machines can well plasticize plastic products and make them form rapidly. Therefore, one of the necessary equipment for plastic product manufacturers is injection molding machines. However, because the price of injection molding machines is not cheap, many people often observe for a long time when purchasing equipment. Because the price of injection molding machines often fluctuates, many people will wait and wait until the appropriate price, However, we would like to remind you that there are many determinants of the price of injection molding machine, which is not controlled by the manufacturer.
Analysis of price change of injection molding machine:
The price of injection molding machine has always been a matter of great concern to everyone, especially the friends who want to buy injection molding machine always pay attention to the changes of market price. The price of injection molding machine is not stable. On the contrary, the price of injection molding machine often changes. Generally speaking, the price of injection molding machine is about 100000-200000 yuan. Some friends have questions. Why should injection molding machine manufacturers set the price to be floating? In fact, the price can not be controlled by the manufacturer alone, because many factors will affect the price, so I hope you can treat the price change of injection molding machine rationally.
Basic conditions for injection molding of injection molding machine:
- Molding pressure of injection mechanism: in principle, it shall be greater than the total pressure of plastic injected into the mold, based on no burr
2. The pressure and speed of the injection molding machine have the same relationship and act on the mold, so that the raw materials can enter the mold evenly and thoroughly. Fill all corners with an appropriate amount. If it is too low, it will be short shot and shrink. If it is too high, there will be hairiness, over fullness, die sticking, scorching, vulnerable die and high internal stress.
3. Speed: the speed of the injection molding machine determines the condition of raw materials in the mold sprue and finished products. Rough edges. Too full, slow burning, short shot, shrinkage, poor combination, easy to break, etc.
- Temperature: different raw materials, different temperatures, too low, uneven color of solution glue, and increased internal stress of finished product. Due to too low temperature and too high pressurization, the screw of the injection molding machine may be broken and the product has burrs. The temperature difference caused by cooling causes shrinkage. The raw materials will decompose, turn yellow, change color, easy to fracture, the cooling time will become longer, the gas is not easy to discharge, and there will be gas.
- Back pressure: the resistance of the screw to retreat when rotating and feeding is called back pressure. Its function makes raw materials more compact in transportation and compression. The air and water of raw materials can be discharged from the back of the screw. So that the sol does not contain gas components that affect the surface of the finished product, and there will be bubbles and crazing on the surface. High temperature will overheat, caking and glue overflow. Long cycle, screw does not retreat; At the same time, the application of loosening is very important. When the back pressure is low, some raw materials need to be loosened, while others do not need to adjust the back pressure according to various raw materials of different properties. When the back pressure of the injection molding machine is high, be sure to loosen and pay attention to the distance, so as not to intervene in air and no glue overflow.
- The mold temperature and cooling time of the injection molding machine affect the die sticking, shrinkage, dimensional tolerance, surface brightness, cycle, etc. of the finished product, which should be adjusted in time according to the actual situation. In addition, if the finished product is thick, there should be mold temperature for acrylic and PC, so as not to produce bubbles and stress.
Because the price of injection molding machine fluctuates irregularly, instead of blindly waiting, we still hope that it is appropriate when you need to buy. After all, if you delay your work because of waiting for the change of price, it will not pay off. I hope our above articles can help you.
