How to solve the problem of wrong shape and pockmarked surface in aluminum alloy die casting?

Hot selling product aluminum die casting. Aluminum alloy die casting In the process of processing aluminum alloy castings, due to raw material or operation reasons, die castings will have various quality problems. Aluminum alloy die-casting manufacturers provide you with solutions. Today, we mainly explain the problem of wrong shape and pockmarked surface.

The misalignment mainly includes four situations: misalignment, misalignment, misalignment and misalignment. Its main manifestation is that the die-casting parts are misaligned on the parting surface, and relative displacement occurs, that is, the thread is misaligned. Aluminum alloy die-casting manufacturers explore the reasons and summarize them into three points:

The mold used in the processing has displacement of the insert; the guide parts of the mold are worn; the inserts of the two halves of the mold have manufacturing errors; Replace the guide post and guide sleeve in time.

Pockmarking is also a quality problem in the production of aluminum alloy castings. It is also called pitting. During the filling process, because the mold temperature or the temperature of the alloy liquid is too low, the surface of the casting is caused by similar underpressure conditions. The formation of small pockmarked distribution areas. The reason for the pockmarked surface may be that the thickness of the inner gate is too small, or that the metal is dispersed into dense droplets when the aluminum alloy die-casting factory fills, and hits the mold wall at high speed.

The corresponding solution is to properly adjust the thickness of the inner gate, or to design the gating system correctly before production, try to avoid molten metal splashing, improve the exhaust conditions, prevent the molten metal from being involved in too much gas, and also reduce the speed of the inner gate. , increase the mold temperature.