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Advantages and Disadvantages of Zinc Die Casting

zinc plating on die casting parts

Zinc alloy die casting products are very common on our life, this process and technology also not strange to us. So what are the advantages and disadvantages of zinc alloy die casting? lets dig it out, Keep Reading.

Advantages and Disadvantages of Zinc Die Casting
Advantages and Disadvantages of Zinc Die Casting

What is zinc die casting?

Zinc alloy die casting is a precision casting method that uses high pressure to force molten zinc alloy metal into a complex shaped metal mold. The density of zinc alloy is 6.4~6.5g/cm 3

Advantages of zinc die casting

Great casting performance

Low tendency of shrinkage Porosity, Can die-cast complex shape, thin-walled precision parts, smooth casting surface.

Diversified surface treatment

electroplating, spraying, painting, oxidation

No iron absorption,no sticky mold

No iron absorption when melting and die-casting, no corrosion of the compression mold, no sticky mold.

Good mechanical properties and wear resistance

The mechanical properties of zinc alloy at room temperature are also high, especially the resistance to pressure and wear are very good

Low melting point

melting at 385℃, easier to shape than aluminum alloy die casting

Disadvantages of zinc die casting

Higher Density

Heavy weight, material cost of zinc alloy is two or three times more expensive than aluminum alloy die casting

Aging Phenomenon

The most serious disadvantage of zinc alloy is the aging phenomenon, the volume rises, the strength decreases, and Longer time will lead to deformation or even shattering of the die casting.

Product size should not be too large

The product size is too large, which will lead to mechanical performance degradation.

Shrinkage Porosity

Because it is high pressure die casting, the die casting process is easy to trap air and cause shrinkage Porosity. the defect will be more visible after surface treatment.

why is zinc used for die casting

Zinc alloy has low melting point, small solidification temperature range, easy to fill molding, small shrinkage tendency, can die-cast complex shape, thin-walled precision parts, smooth casting surface, high dimensional accuracy; low pouring temperature, long mold life, not easy to stick mold, not corrosive mold, so suitable for die-casting

Conclusion

As a China Pressure die casting supplier, we offer aluminium, zinc and miniature zinc die casting parts and molds. Looking for reliable die casting company in china, we offer high quality and precision die casting parts and molds to our customer over world. Get Free Quote Now!

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