(1) pickling passivation method

Method applicable to the scope of the advantages and disadvantages
The impregnation method is used can be placed in the pickling bath or passivation tank parts, but not suitable for the equipment of the acid lotion can be a long time, higher production efficiency, low cost; large volume of equipment consumption of liquid is too full of acid impregnated large

Brushing method is applicable to the operation of large equipment at the surface and partially treated material workers, poor working conditions, the acid can not be recycled

Paste method used to install or repair the site, especially for welding department to deal with the manual, poor working conditions, production costs are high

Spray method for the installation site, the inner wall of the large containers with low fluid volume, low cost, high speed, but must be configured to spray gun and stick-loop system

Cycling method for large-scale equipment, such as heat exchangers, shell and tube processing to facilitate construction, acid reuse, Vulgar required piping and pumps to connect to the circulatory system
The electrochemical method can be used for parts, may also use the brush method is more complex on-site equipment, surface treatment technology required DC power supply or a potentiostat



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