1. Try to avoid the rapid heating of the quenched plastic mold of the abrasive tool, and continue production as much as possible. In the case of a cold mold, high-speed injection is prohibited.

During the whole process of aluminum die-casting, the die-casting mold parts have been in a reciprocating fatigue state of expansion and contraction of hot steel structure parts. Most of the temperature of the die of the abrasive tool has been changing back and forth between 160 degrees and 350 degrees. The thermal expansion and contraction will lead to fatigue and damage of the abrasive tool. In the case of cold mold, when the production is started, the temperature of the abrasive tool starts to rise from the ultra-low temperature, the temperature difference increases, the expansion and contraction of the abrasive tool increases, and the fatigue of the abrasive tool increases, which will accelerate the damage of the abrasive tool and reduce the use of the abrasive tool. life. Therefore, in the production of aluminum die-casting, the production should be continued as much as possible, and the rapid cooling and heating of the abrasive tool should be avoided as much as possible, thereby increasing the service life of the abrasive tool.

In addition, in the case of cold molds, the plastic packaging machinery for abrasives does not meet all the temperatures during normal production, and the gaps between the molds are relatively large. Under such mechanical conditions, high-speed injection and Increase. Otherwise, the gap positions of the abrasive tool, including the guide rail slider, the small chain hole, etc., are very easy to string into the aluminum skin, thereby destroying the abrasive tool and endangering the service life of the abrasive tool.