Hot chamber die-casting machine is a common metal die-casting equipment widely used in the manufacturing of various metal parts and products. In the process of hot chamber die-casting, the injection stage is a key step, but sometimes there may be problems of pressure drop during injection, which affects production efficiency and product quality. What is the reason for the pressure drop during the injection of the hot chamber die-casting machine? The following will explore common reasons for pressure drop during injection.
1. Nozzle blockage: The nozzle is a key component that injects molten metal into the mold cavity. If the nozzle is blocked or damaged, it will affect the smooth flow of metal liquid, leading to insufficient injection pressure.
2. Oil pressure issue: The injection process requires a certain amount of oil pressure to push the metal liquid into the mold cavity. If there is a malfunction in the hydraulic system and the oil pressure is unstable, it may cause the pressure to drop.
3. Temperature instability: The temperature control of the hot chamber die-casting machine is crucial for the injection process. If the temperature is unstable or set improperly, it may lead to changes in the viscosity of the molten metal, which can affect the stability of injection and even cause pressure drop during injection.
4. Mold problem: The design and manufacturing quality of the mold are directly related to the stability of the injection process. If the mold cavity is insufficient or the mold opening and closing are not smooth, it may lead to unstable injection.
5. Insufficient metal liquid: The injection process requires a certain amount of metal liquid. If the metal liquid is insufficient, it will lead to insufficient injection and affect the filling of the product.
6. Improper injection speed: Setting the injection speed is very important for injection control. If the injection speed is too fast or too slow, it may lead to inaccurate injection control and affect the quality of the finished product.
