Preparation process of acid-base compound Magni coating

A preparation process, the technology of magari, applied in the field of preparation process of acid-base composite magari coating, can solve the problems of many product defects, slow plating speed, difficult drying, etc., to overcome the thin zinc layer thickness and reduce production Line running cost, product surface quality good effect
CN105506688AInactive Publication Date: 2016-04-20GUANGXI LIUZHOU LONGFA METAL SURFACE TREATMENT TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GUANGXI LIUZHOU LONGFA METAL SURFACE TREATMENT TECH
Publication Date
2016-04-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a preparation process of an acid-base compound Magni coating and relates to a metal surface antiseptic treatment process. The preparation process comprises the procedure of pretreatment conducted before coating, preparation of the coating and treatment conducted after coating, wherein the procedure of preparation of the coating comprises the steps of firstly, conducting potassium chloride galvanization on the surface of a workpiece, and then conducting zincate galvanization, wherein the steps of 21, potassium chloride galvanization, 22, washing III, 23, zincate galvanization, 24, washing IV, 25, film removal and 26, washing V are included; the procedure of treatment conducted after coating comprises the steps of 31, ultralow chromium passivation, 32, washing VI and 33, drying. According to the preparation process of the acid-base compound Magni coating, the potassium chloride galvanization process and the zincate galvanization process are combined together, product quality can be well stabilized, production efficiency is greatly improved, production line operation cost is lowered, the coating on the surface of a product prepared through the preparation process is uniform, surface quality is good, the preparation process has the advantages that the coating speed is high, drying can be conducted easily, product defects are few, the service life of the product is prolonged, the ultralow chromium passivation process is adopted, sewage treatment cost is lowered, and the preparation process is easy to use and popularize.
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Description

technical field

[0001] The invention relates to a metal surface anticorrosion treatment process, in particular to a preparation process of an acid-base composite magari coating. Background technique

[0002] The metal surface anti-corrosion treatment process will affect the quality and service life of various projects and products. Various surface treatment experts around the world have been committed to research and development that can provide long-term corrosion resistance and reduce the cost consumed in corrosion engineering. The cost is mainly reflected in: labor costs, chemical costs and sewage treatment costs.

[0003] At present, the common galvanizing process is as follows: hanging β†’ high temperature electrolytic degreasing β†’ water washing β†’ acid electrolysis β†’ activation β†’ water washing β†’ ordinary galvanizing β†’ water washing β†’ film removal β†’ water washing β†’ high chromium passivation β†’ water washing β†’ drying, this process is aimed at The main products are some stam...

Claims

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