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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

Inactive Publication Date: 2016-04-20
GUANGXI LIUZHOU LONGFA METAL SURFACE TREATMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a preparation process of an acid-base composite magari coating to solve the problems in the prior art such as high production line comprehensive operation cost, uneven galvanized layer, easy discoloration after passivation, and The shortcomings of slow plating speed, difficult drying, many product defects, and difficult sewage treatment

Method used

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  • Preparation process of acid-base compound Magni coating

Examples

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Effect test

Embodiment 1

[0051] A preparation process of an acid-base composite magari coating, including pre-plating pretreatment, coating preparation, and post-plating treatment. The preparation of the coating is to first carry out potassium chloride galvanizing on the surface of a workpiece, and then carry out zinc acid Salt galvanized. Wherein: described pre-plating pretreatment comprises the steps:

[0052] S11. Hang up: hang up the workpiece to the automatic production line;

[0053] S12. Degreasing: Perform high-temperature electrolytic degreasing of the workpieces on the automatic production line in the degreasing liquid;

[0054] S13. Water washing Ⅰ: wash the workpiece twice with tap water;

[0055] S14. Acid electrolysis: acid electrolysis removes the oxide film on the surface of the workpiece;

[0056] S15. Activation;

[0057] S16. Water washing II: wash the workpiece 3 times with tap water.

[0058] The preparation of described coating comprises the steps:

[0059] S21. Potassium c...

Embodiment 2

[0070] A preparation process of an acid-base composite magari coating, including pre-plating pretreatment, coating preparation, and post-plating treatment. The preparation of the coating is to first carry out potassium chloride galvanizing on the surface of a workpiece, and then carry out zinc acid Salt galvanized. Wherein: described pre-plating pretreatment comprises the steps:

[0071] S11. Hang up: hang up the workpiece to the automatic production line;

[0072] S12. Degreasing: Perform high-temperature electrolytic degreasing of the workpieces on the automatic production line in the degreasing liquid;

[0073] S13. Water washing Ⅰ: wash the workpiece 3 times with tap water;

[0074] S14. Acid electrolysis: acid electrolysis removes the oxide film on the surface of the workpiece;

[0075] S15. Activation;

[0076] S16. Water washing II: wash the workpiece 3 times with tap water.

[0077] The preparation of described coating comprises the steps:

[0078] S21. Potassium...

Embodiment 3

[0089] A preparation process of an acid-base composite magari coating, including pre-plating pretreatment, coating preparation, and post-plating treatment. The preparation of the coating is to first carry out potassium chloride galvanizing on the surface of a workpiece, and then carry out zinc acid Salt galvanized. Wherein: described pre-plating pretreatment comprises the steps:

[0090] S11. Hang up: hang up the workpiece to the automatic production line;

[0091] S12. Degreasing: Perform high-temperature electrolytic degreasing of the workpieces on the automatic production line in the degreasing liquid;

[0092] S13. Water washing Ⅰ: wash the workpiece twice with tap water;

[0093] S14. Acid electrolysis: acid electrolysis removes the oxide film on the surface of the workpiece;

[0094] S15. Activation;

[0095] S16. Water washing II: wash the workpiece twice with tap water.

[0096] The preparation of described coating comprises the steps:

[0097] S21. Potassium chl...

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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.

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 → high temperature electrolytic degreasing → water washing → acid electrolysis → activation → water washing → ordinary galvanizing → water washing → film removal → water washing → high chromium passivation → water washing → drying, this process is aimed at The main products are some stam...

Claims

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Application Information

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IPC IPC(8): C25D5/10C25D3/22C25D5/36C25D5/48
CPCC25D5/10C25D3/22C25D5/36C25D5/48
Inventor 郑雄君叶春生甘庆孟叶锋
Owner GUANGXI LIUZHOU LONGFA METAL SURFACE TREATMENT TECH
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