Die-casting aluminum alloy mesh wool wing solution


Features:

There are traces of protrusions or depressions like reticular hairs on the surface of die castings, which are continuously expanded and extended with the increase of die casting times.

Cause:

① die-casting mold cavity surface cracks; ② improper die-casting mold material or heat treatment process is not correct; ③ die-casting mold temperature change is large; ④ pouring temperature is too high; ⑤ die-casting mold preheating is insufficient; ⑥ cavity surface roughness.

Processing method:

① Correct selection of die casting mold materials and heat treatment process; ② The pouring temperature should not be too high, especially for high melting point alloys; ③ The mold should be fully preheated; ④ After the mold is manufactured, carry out low-temperature long-term aging treatment or chemical oxidation treatment on the surface; ⑤ Grind the surface of the formed part to reduce the surface roughness Ra value, Ra0.8 ~ Ra0.4;⑥ Reasonable selection of mold cooling method; ⑦.

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