Zinc alloy die-casting goods in the whole process of all goods processing process inevitably will cause, for example, water mouth material, slag, damaged parts, UV poor plating process poor, zinc slag and other waste. Solving this kind of waste can be a very good manipulation cost, to enhance the purpose of economic income.

The waste caused by the processing process should be solved differently, and smelting together will not only achieve the actual effect of recycling. On the contrary, it will lead to zinc alloy material ingot composition adulteration, resulting in zinc alloy material with hard solid fine particulate matter, prompting smelting aluminum die-casting out of the product workpiece with heavy shortcomings. Generally speaking, water parts and aluminum die-casting scrap will be done as a class to solving. Zinc slag will be done as a category to solve. The final plating process waste will be done as a category to solve.

Recycling of zinc die-casting products

Aluminum die-casting product workpiece when caused by water parts, aluminum die-casting poor waste parts, can immediately put into the clamp pot to remelt, must pay attention to is that the remelt ratio does not have to exceed the general, generally, the ratio of new old is 7 to 3, not suitable for too high. The reason is that this waste occurs in aluminum die-casting, the surface layer of air oxidation, the composition of active zinc oxide is too high, in the case of remelting will become a thick situation floating in the surface layer of vaporized zinc alloy material, in the case of removing and taking down this slag, it will take away a lot of zinc alloy material ingredients. It leads to the change of the proportion of the aluminum alloy, which makes the aluminum alloy characteristics change and produces poor aluminum die casting.

The die-casting factory is generally not easy to solve the zinc slag by itself, it is better to sell the zinc slag back to the raw material distributor or professional treatment station, and it will cost too much to solve by itself. The zinc dross must be solved by the die-casting factory itself with an independent melting furnace, and when smelting zinc dross, it causes strong smoke and large capital investment in environmental protection, resulting in higher costs. Second, must be standard smelting processing technology and skilled practical operation staff, when smelting processing technology, the practical operation is not standard, and there is no way to ensure smelting out of the zinc alloy material ingot quality, resulting in aluminum die-casting out of the casting parts is not good, the cost will rise again.

When the waste of the electroplating process is poorly handled, pay attention to the independent solution, separate smelting, electroplating process layer of copper, nickel, chromium, and other metal materials are not dissolved zinc, smelting will appear in the zinc alloy material ingot after hard solid fine particulate matter, aluminum die-casting out of the goods will appear grinding and polishing poorly and machine plus poorly caused by the situation. When remelting the electroplating process waste, it is necessary to separate the coating chemicals from the aqueous solution of zinc alloy material. When the remelting is solved by using zinc alloy material slag, when the electroplating process waste is subjected to a decomposition reaction, the zinc alloy material liquid with a low solubility point will flow under the slag, while the electroplating process layer waste with high solubility point will use the buoyancy of water of the slag to stay on the top side of the slag and separate the electroplating process metal material and zinc alloy material. When remelting electroplating process waste, it is not appropriate to remelt too much waste at one time.

Conclusion

The solution of zinc alloy material waste must be considered in terms of cost, and the solution of waste is to manipulate the cost and improve the economic benefit. However, if the cost of self-solution is too high, the waste should be handed over to a professional treatment station.

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