The cleaning of castings is a very heavy work, and its workload is often 10-15 times that of die-cast aluminum ingots. Therefore, with the increase in productivity and output of die-casting aluminum ingot machines, it is very important to realize mechanization and automation of casting cleaning work.
1) Cut off the gate and flash
The equipment used to remove gates and flash is mainly punch presses, hydraulic presses and friction presses. Under mass production of parts, special molds can be designed according to the structure and shape of the castings, and the cleaning task can be completed at one time on the punching machine.
2) Surface cleaning and polishing
Surface cleaning mostly uses ordinary polygonal rollers and vibration buried cleaning devices. For simple and small pieces with small batches, multi-angle cleaning rollers can be used. For decorations with high surface requirements, cloth or leather polishing wheels can be used. For mass-produced castings, a screw-shell type vibration cleaning machine can be used.
The cleaned castings can also be surface treated and impregnated according to the requirements of use to increase gloss, prevent corrosion, and improve air tightness.