Use method of environmental protection galvanizing passivator
Apr 23,2024
Environmental protection galvanizing passivatorThe main function is to treat the surface of the galvanized layer to form a passivation film. This passivation film can effectively reduce the contact between the zinc layer and the external environment, so as to prevent the zinc layer from being oxidized, corroded or affected by other chemicals. This treatment can greatly enhance the anti-corrosion ability of the iron surface, extend the service life of the galvanized layer, reduce the number of maintenance and renewal, and thus save economic costs.
In addition, the passivation film can also give different colors to the coating, improve the adhesion between it and the paint layer, and further enhance its protective performance. For galvanized products with more stringent requirements, such as automotive parts, it is sometimes necessary to coat an organic film on the outside of the passivation film to further improve its corrosion resistance. This treatment method not only meets the protection requirements, but also considers the cost and operation efficiency.
The use of environmentally friendly galvanizing passivator is also in line with modern green and environmentally friendly life concepts. It does not contain heavy metals, phosphate, no toxicity to the environment. After the treated wastewater is neutralized to a certain pH value by lime water, it can be directly discharged or reused for rinsing without polluting the environment.
Environmentally friendly galvanizing passivator plays a vital role in the galvanizing process. It improves the corrosion resistance of the galvanized layer, prolongs the service life, and also meets the requirements of environmental protection.
The use of environmentally friendly galvanizing passivator mainly includes the following steps:
Pretreatment: First of all, the coating needs to be cleaned and pretreated to remove oxides and other impurities on the surface of the zinc layer to ensure that the passivating agent can directly contact the surface of the zinc layer. Pretreatment methods may include chemical treatment, mechanical sandblasting, acid washing, special solution treatment, etc.
Coating: After the pretreatment, the environmental protection galvanizing passivator is evenly coated on the surface of the coated material. Generally, brushing, spraying and other methods are used to evenly cover the surface of the zinc layer and avoid problems such as hollowing and leakage. In the coating process, it is recommended to use stainless steel brushes or brushes that require corrosion resistance.
Drying: After coating, the passivating agent needs to be dried. This may require natural drying for a period of time, or accelerated drying by drying. In the drying process, it is necessary to avoid external influences, ensure that the passivator is completely dry, and prevent oxidation, corrosion and other problems.
Please note that although the environmentally friendly galvanizing passivator is not toxic to the environment, it is still necessary to pay attention to safety protection during operation to avoid direct contact with skin and eyes. In addition, the passivator treatment solution after use should be properly disposed of in accordance with relevant regulations to prevent adverse effects on the environment.
Different brands and types of environmentally friendly galvanizing passivators may be used differently. Therefore, in actual operation, it is recommended to refer to the product manual or consult a professional to ensure the correct and safe use of the passivator.
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Address: No.1 Tianyuan East Road, Yonghe Economic Zone, Huangpu District, Guangzhou City
