Aluminum alloy passivation is in the process and temperature plays a very important role in the passivation effect. The influence of temperature exists in the pretreatment and passivation process of passivation. To do a good job in passivation of aluminum alloy, the temperature cannot be ignored. Important elements, so it is absolutely necessary to discuss the influence of temperature in the passivation process.

First of all, during the pretreatment of aluminum alloy passivation, the influence of degreasing temperature on the degreasing effect is a factor that must be paid attention to. In order to ensure that the surface of the workpiece is clean and grease-free, the temperature must be controlled during degreasing. Low temperature is not conducive to the activation of the active agent of the degreasing agent, and the degreasing effect is poor; if the temperature is too high, the active agent in the degreasing agent decomposes due to high temperature, and the active agent is active Disappear, resulting in poor degreasing effect.

Secondly, in the aluminum alloy passivation process, another process affected by temperature is the temperature of the passivation solution. The water temperature in South China is generally between 10-22 degrees. In this temperature range, the passivation solution can be used normally. , But in special weather or winter in northern China, the water temperature may be lower than 10 degrees. In this temperature range, the passivation effect will be poor, so it must be heated; in addition, in order to improve the corrosion resistance of aluminum alloy , It can also be treated by heating, but the maximum temperature should not exceed 40 degrees, otherwise, the passivation effect will not be good.

It can be seen that temperature is very important in the passivation process of aluminum alloy. It is related to the success and failure of the passivation process and must be paid attention to by the potion supplier and the user.

Link to this article： The Influence Of Temperature On Aluminum Alloy Passivation Process 

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