High-concentrated non-phosphorus transforming agent

A transforming agent, high concentration technology, applied in the direction of metal material coating process, can solve the problems of inconvenient transportation, storage, poor coating adhesion, endangering human health, etc., to reduce pollution and harm to human body, improve The effect of quality stability and convenient storage

Inactive Publication Date: 2020-04-10
嘉兴科荣环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. No concentration characteristic, or low concentration, large volume, inconvenient transportation and storage;
[0007] 2. Containing phosphate and chromate, polluting the environment and endangering human health, unsafe and not environmentally friendly;
[0008] 3. After the surface of the metal workpiece is treated, the film layer formed is uneven and even has gaps, resulting in poor corrosion resistance and weak adhesion to the coating

Method used

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  • High-concentrated non-phosphorus transforming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A highly concentrated phosphorus-free conversion agent, characterized in that it is made of raw materials comprising the following parts by weight:

[0055] 30-50 parts of ammonium fluorozirconate,

[0056] 20-30 parts of fluozirconic acid,

[0057] 13-18 parts of fluotitanic acid,

[0058] 30-50 parts of aluminum nitrate,

[0059] 20-30 parts of deionized water.

[0060] Preferably, the highly concentrated phosphorus-free conversion agent is made of raw materials including the following parts by weight:

[0061] 35~46 parts of ammonium fluorozirconate,

[0062] 22-29 parts of fluorozirconic acid,

[0063] 14-17 parts of fluotitanic acid,

[0064] 31~38 parts of aluminum nitrate,

[0065] 23 to 26 parts of deionized water.

[0066] Preferably, the highly concentrated phosphorus-free conversion agent is made of raw materials including the following parts by weight:

[0067] 40 parts of ammonium fluorozirconate,

[0068] 26 parts of fluozirconic acid,

[0069] 15.5 parts of fluotitanic acid,...

Embodiment 2

[0085] A highly concentrated phosphorus-free conversion agent, characterized in that it is made of raw materials comprising the following parts by weight:

[0086] 35 parts of ammonium fluorozirconate,

[0087] 22 parts of fluorozirconic acid,

[0088] 13 parts of fluorotitanic acid,

[0089] 31 parts of aluminum nitrate,

[0090] 23 parts of deionized water.

[0091] Preferably, the method for using the highly concentrated phosphorus-free conversion agent includes the following steps:

[0092] A. Cleaning with non-phosphorus degreasing agent;

[0093] B water washing;

[0094] C. Phosphorus-free conversion agent treatment: temperature 25℃, pH 4.5, soaking or spraying treatment time 6min;

[0095] D. Wash with water;

[0096] E. Drying: the temperature is 87°C, the treatment time is 4min, and then the temperature is increased to 130°C, the treatment time is 7min.

Embodiment 3

[0098] A highly concentrated phosphorus-free conversion agent, characterized in that it is made of raw materials comprising the following parts by weight:

[0099] 46 parts of ammonium fluorozirconate,

[0100] 29 parts of fluorozirconate,

[0101] 18 parts of fluorotitanic acid,

[0102] 38 parts of aluminum nitrate,

[0103] 26 parts of deionized water.

[0104] Preferably, the method for using the highly concentrated phosphorus-free conversion agent includes the following steps:

[0105] A. Cleaning with non-phosphorus degreasing agent;

[0106] B water washing;

[0107] C. Phosphorus-free conversion agent treatment: temperature 25℃, pH 4.5, soaking or spraying treatment time 6min; D, water washing;

[0108] E. Drying: the temperature is 87°C, the treatment time is 4min, and then the temperature is increased to 130°C, the treatment time is 7min.

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Abstract

The invention discloses a high-concentrated non-phosphorus transforming agent. The high-concentrated non-phosphorus transforming agent is characterized in that the high-concentrated non-phosphorus transforming agent is prepared from the following raw materials in weight by parts: 30-50 parts of ammonium fluozirconate, 20-30 parts of fluozirconic acid, 13-18 parts of fluotitanic acid, 30-50 parts of aluminium nitrate and 20-30 parts of deionized water. The high-enriched non-phosphorus transforming agent has high concentration characteristics, and is high in concentration degree, small in volumeand convenient to transport and store; the use concentration is lower, more transforming agent treatment liquid can be prepared, the treatment area is larger, and the treatment capacity is high; forsame base materials, after the treatment with the high-concentrated non-phosphorus transforming agent, compared with an existing non-phosphorus transforming agent, the neutral salt spray test is higher in grade and better in corrosion resistance; and for the same base materials, after the treatment with the high-concentrated non-phosphorus transforming agent, compared with the existing non-phosphorus transforming agent, the adhesion force with a coating is higher.

Description

Technical field [0001] The invention relates to the field of surface treatment agents, in particular to a highly concentrated phosphorus-free conversion agent. Background technique [0002] In order to prevent corrosion of metal materials, metal surface treatment is generally selected to reduce the impact of materials due to environmental factors, such as film formation treatment, coating, electroplating, thermal spraying, vapor deposition, etc., using these surface treatment procedures to The metal surface is covered with a protective film to increase its corrosion resistance. [0003] Currently, phosphate and chromate treatment processes are widely used. Although the former has excellent corrosion resistance, the emission of phosphorus causes environmental eutrophication, which easily generates a large amount of sludge in the equipment, which increases the cost of wastewater treatment. For example, the Chinese patents with authorized announcement number CN103820778B and applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/34
CPCC23C22/34
Inventor 周建发
Owner 嘉兴科荣环保科技有限公司
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