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How to deal with quenching cracks in die casting die factory?

The die castings manufactured by the die casting die factory have excellent performance and enjoy fame in the country and even the world. Due to the brittleness of zinc alloy, quenching cracks are easy to occur in zinc alloy die castings due to high temperature extrusion.

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How can zinc alloy die casting manufacturers prevent corrosion of die castings?

How can zinc alloy die casting manufacturers prevent corrosion of die castings?

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What is the casting function and new polishing technology of aluminum die casting?

Die casting is a kind of precision casting method that uses high pressure to force metal melt into metal mold with complex shape. Because of its large condensation latent heat during the operation of aluminum die casting, the condensation process of its aluminum liquid is much longer than that of cast steel and cast iron continuously at the same component during the operation, and the flow release is outstanding, which is conducive to casting thin-walled and disordered castings.

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Common aluminum alloy die casting treatment methods

Many science and technology house how to make aluminum alloy die-casting surface smooth Sanding effect, aluminum alloy how to make this arc surface is very interesting. Today, I will introduce five common surface treatment methods for aluminum alloy die-casting.

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Prevention of Surface Defects of Aluminum Alloy Die Castings

With the gradual emergence of the advantages of aluminum alloy die castings, the market demand constantly requires the processing plant to increase production, so as to upgrade the old iron castings to aluminum alloy or magnesium alloy as soon as possible. As a result, the task of the processing plant is heavier, and the quality must also be adhered to. Today's editor will teach us how to prevent some common defects of aluminum alloy die castings.

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Causes and solutions of unqualified zinc alloy die castings

Caused by pores: mainly due to pores and shrinkage mechanism. The pores are usually round, but most of the shrinkage is irregular. (1) Cause of air hole: In the process of inflation and curing, due to gas invasion, metal liquid will produce air holes on the surface or inside of the casting. B Invasion of volatile gas from paint. C The gas content of alloy liquid is too high, and it is coagulated and precipitated. When the mold exhaust is poor, the gas in the cavity and the volatile gas of the paint will eventually remain in the formation of the casting porosity. (2) Reasons for shrinkage: During the solidification of liquid metal, due to the volume reduction or the final curing part is not liquid metal material and shrinkage pores. B. The uneven thickness of the casting or casting is locally overheated, which causes the surface to solidify slowly and form a concave surface when the volume shrinks. Due to the existence of air holes and shrinkage holes, when the die casting surface can enter water painting and electroplating, the gas in the hole will expand thermally, or the water in the hole will become steam and expand in volume, resulting in bubbles on the casting surface.

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