low pressure casting mouldThe life is an important indicator to consider the quality of the mold, but also an important factor affecting the economic benefits of die-casting enterprises. Therefore, improving the service life of low-pressure casting molds is very beneficial to the economic benefits of low-pressure casting mold users and the social benefits of reducing resource waste.

Forlow pressure casting mouldEspecially aluminum alloys.low pressure casting mould, Due to the high melting point of aluminum alloy, fast injection speed, high injection pressure, and mold life is much lower than that of injection molds.40000 to more than a dozen. Therefore, how to extendlow pressure casting mouldThe service life is more worthy of our study and discussion. Below we look at the impact.low pressure casting mouldfactors.

Fromlow pressure casting mouldThe use of the characteristics of the point of view, the main performance of the mold damage can not be used: First, the mold aging, surface cracking, affecting the appearance. At the same time, the surface of the part is pulled out of the mold or the casting is deformed due to cracks, making the mold unusable. Second, the mold cannot be used due to cracking. Third, mold failures such as slider blockage and aluminum channeling often occur, resulting in mold failure or low die casting efficiency.

low pressure casting mouldMain causes of damage:

low pressure casting mouldIn the process of use, on the one hand, the mold is subjected to high-speed and high-pressure impact of aluminum liquid. The injection process is actually a spraying process. In the die-casting process, the gate speed generally reaches30-70 m/s, the filling pressure is generally 400-900kg/cm², and the impact pressure and speed are higher; on the other hand, the temperature of the aluminum liquid is relatively high, and the low-pressure casting mold has been in a reciprocating fatigue state of thermal expansion and contraction. The temperature of the mold cavity basically changes back and forth between 160°C and 350°C. The mold continues to expand and contract due to heat and cold. Therefore, mold damage is mainly due to impact, compression, expansion and contraction, resulting in fatigue, or deformation, or surface cracking, or overall cracking, resulting in mold damage. Therefore, the extension of the life of the mold should mainly start with reducing the impact speed, pressure, reducing temperature, reducing expansion and contraction, improving fatigue strength, and improving impact resistance.

low pressure casting mouldDesign is impact.low pressure casting mouldAn important factor in longevity. The quality of mold design directly affectslow pressure casting mouldof life. Therefore,low pressure casting mouldThe design needs to be based on the characteristics of the casting, fully consider the factors affecting the life of the mold, and reasonably design the mold structure. The casting design that affects the life of the mold should be improved in time, or reasonable measures should be taken to solve it.