low pressure die castingLife 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, increasinglow pressure casting mouldThe service life,low pressure casting mouldThe economic benefits of using enterprises and the social benefits of reducing waste of resources are very beneficial.

Forlow pressure casting mouldEspecially aluminum alloys.low pressure casting mouldDue to the high melting point of aluminum alloy, fast injection speed, and high injection pressure, the mold life is much lower than that of injection molds, generally between 40,000 and more than ten. Therefore, how to extendlow pressure casting mouldThe service life is more worthy of our study and discussion.Below to understandImpactlow 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 is cracked and cannot be used; third, mold failures such as slider blockage and mold aluminum channeling often occur, resulting in mold unusable, or die casting efficiencyVeryLow.

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 very high; on the other hand, the temperature of the aluminum liquid is relatively high,low pressure casting mouldHas been in a state of reciprocating fatigue of thermal expansion and contraction, the temperature of the mold cavity has been basicallyBetween 160 ℃ and 350 ℃, the mold is hot and cold, expanding and shrinking. 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 mouldDesignNeedAccording to the characteristics of the casting, fully consider the factors that affect 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.