Metal splash occur during die casting includes: insufficient mold clamping force, injection pressure is too high or injection speed is too fast and so on.

The reasons for metal sputtering during die casting mainly include the following aspects:

1. Metal splash occur during die casting: Insufficient mold clamping force or too large mold gap

If the clamping force between the movable mold and the fixed mold is insufficient, or the mold gap is too large, the molten metal may splash out from the gap of the mold. This situation usually requires reinstalling the mold, increasing the clamping force, and ensuring the parallelism and sealing of the mold.

2. Metal splash occur during die casting: Injection pressure is too high or injection speed is too fast

Excessive injection pressure or too fast injection speed will cause the molten metal to enter the mold cavity at high speed, resulting in strong turbulence and airflow, causing the molten metal to splash out. In this case, metal splashing can be reduced by adjusting the injection pressure and speed.

3. Metal splash occur during die casting: Mold temperature is too low

Mold temperature that is too low will cause the molten metal to cool too quickly, forming condensation droplets, which may splash onto the mold surface or surrounding areas. Therefore, keeping the mold temperature within a reasonable range is an important measure to prevent metal sputtering.

4. Improper mold design

Defects in mold design, such as small gate size, improper position, or uneven mold wall thickness, may also cause poor flow of molten metal, thereby causing spattering. Optimizing mold design and ensuring that the gate size and position are reasonable can effectively reduce metal spattering.

5. Die wear or aging

Dies that have been used for too long or are severely worn may cause the gap to increase, thereby increasing the risk of metal spattering. Regular inspection and replacement of worn dies is necessary.

6. Gas entrainment and turbulence effects

During the die casting process, molten metal will entrain air or other gases when flowing at high speed. These gases will form turbulence during the flow process and may cause metal liquid to splash. Gas entrainment and turbulence effects can be reduced by optimizing the gating system design and using appropriate gas release agents.

7. Improper operation

Failure of the operator to properly control the injection time and pressure during the die casting process may also cause metal spattering. Strictly following the operating procedures for die casting and training the operators can reduce the occurrence of such problems.

Haichen die casting machine

Haichen is one Chinese die casting machine manufacturer for more than 10years. At the same time, we produce both high pressure cold chamber die casting machine and hot chamber die casting machine. They have durable and highly precise features.

Haichen also produce die casting machine auxiliary equipment. Such as conveyor, vacuum machine, mold temperature controller, industrial robot, sprayer and so on.

We supply cold chamber and hot chamber die casting machine spare parts.

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