All the time, the aluminum alloy die casting cleaning is always a difficult problem. The practice of many enterprises is, after machining, do not do thorough cleaning, just use water to simply rinse, then blow dry, or even natural air dry, and then stacked in the warehouse for a few months.Suddenly one day need to be out of the warehouse, only to find the work piece long mildew spot, moldy, black, yellow situation. At this time, we suggest you: 1, with die-casting aluminum mildew spot cleaning agent timely and thoroughly clean, including the surface of the work piece oil, slight oxidation mildew point (mildew point is still very small, do not look carefully, the naked eye can not really see); 2, after cleaning, immediately do an anti-oxidation treatment. It should be noted that currently chromic acid has been banned, the use of chromium and cyanogen free passivant to meet the environmental requirements; 3. After anti-oxidation drying, the workpiece shall be placed in a dry and ventilated place and inspected regularly.
二、Fragile workpiece
Item |
Replacement time |
Remark |
Ejection rod |
At any time |
Deformation, fracture, fluff, abnormal sound |
Cast pin |
At any time |
Deformation, fracture |
Irregularly shaped insert |
At any time |
Deformation, fracture |
Seal ring |
At any time |
Leaks, breaks, expiration date |
Rubber tube |
At any time |
Leaks, breaks, expiration date |
Replacement time
1、Vulnerable workpiece according to the mold production product strain, deformation, fracture, uneven or mold production abnormal sound failure, please replace at any time
2、If it is damaged during assembly or production, please replace the required workpiece at any time.