Industrial aluminium profile characteristics and inspection methods: sizes ridge or subcutaneous formation on the surface of the casting gap.

Industrial aluminium profile:

1. The interior of the molten metal filling injection through low, general control in 45% ~ 70%, easy to produce gas, the initial injection rate is too high.

2. Industrial aluminum extrusion mold in the gate system is not reasonable or poor ventilation.

3. The melting temperature is too high, so that the gas content is higher, and the melt degassing.

4. Industrial aluminum extrusion mold temperature is too high, the time to maintain the mould is not up to standard, metal after curing time is not enough, the strength of the aluminum profile is not enough, and the mold soon to open, so that the compressed gas expansion.

5, the amount of release agent, spray oil too much.

6. After spraying blowing industrial aluminum time is not long enough, the mould surface water not dry.

Industrial aluminum bubble prevention measures:

1. Adjust the industrial aluminum die casting technology parameters, high pressure injection and injection speed switching points.

2. Modify the mould flow channel, and add the overflow tank and exhaust slot.

3. Industrial aluminum reduced the defect area of mold temperature, reducing the gas pressure.

4. Adjust the smelting process,

5. Prolong the time to maintain the mould, and adjust the blowing time after spraying.

6. Adjust the release agent and the amount of oil in bulk.