A kind of chemical pump stainless steel pump shell surface phosphating treatment agent

A stainless steel pump and surface phosphating technology, which is applied in the coating process of metal materials, etc., can solve the problems of easy inclusion and precipitation of phosphating film, difficult cleaning of sediment, and easy falling off of phosphating film, so as to improve the efficiency of phosphating treatment, Good corrosion resistance, easy to solve the effect of inclusion and precipitation

Active Publication Date: 2019-04-23
佛山市顺德区永润金属表面技术处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many fields, chemical pumps are made of No. 20 stainless steel. During processing, the surface of the stainless steel needs to be treated to improve corrosion resistance. Phosphating is to enhance the bonding force between the coating film and the workpiece, but the existing high temperature Surface phosphating treatment, film formation is unstable, phosphating film is easy to fall off, phosphating film is easy to be mixed with sediment, and the sediment is difficult to clean

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A chemical pump stainless steel pump casing surface phosphating treatment agent, consisting of solution A and solution B;

[0017] The solution A is made of the following components in parts by weight: bismuth molybdate 1, sodium chloride 4, potassium carbonate 4, urea 1, water 80;

[0018] The solution B is made of the following components in parts by weight: 4 maleic anhydride, 8 ammonium phosphate, 1 sulfuric acid, 2 zinc dihydrogen phosphate, 0.2 acid additives, 1 potassium hypochlorite, 70 water; The agent is made of the following components in parts by weight: 4 alanine, 4 glycine, 1 citric acid.

Embodiment 2

[0020] A chemical pump stainless steel pump casing surface phosphating treatment agent, consisting of solution A and solution B;

[0021] The solution A is made of the following components in parts by weight: bismuth molybdate 5, sodium chloride 8, potassium carbonate 8, urea 3, water 100;

[0022] The solution B is made of the following components in parts by weight: maleic anhydride 5, ammonium phosphate 10, sulfuric acid 3, zinc dihydrogen phosphate 4, acid additives 0.6, potassium hypochlorite 3, water 80; the acid additives The agent is made of the following components in parts by weight: 4 alanine, 4 glycine, 1 citric acid.

Embodiment 3

[0024] A chemical pump stainless steel pump casing surface phosphating treatment agent, consisting of solution A and solution B;

[0025] The solution A is made of the following components in parts by weight: bismuth molybdate 3, sodium chloride 6, potassium carbonate 6, urea 2, water 90;

[0026] The solution B is made of the following components in parts by weight: 4.5 parts by weight of maleic anhydride, 9 parts ammonium phosphate, 2 parts sulfuric acid, 3 parts zinc dihydrogen phosphate, 0.4 parts of acid additives, 2 parts of potassium hypochlorite, and 75 parts of water; The agent is made of the following components in parts by weight: 4 alanine, 4 glycine, 1 citric acid.

[0027] Phosphate film performance test:

[0028] Table 1

[0029]

[0030] Among them, comparative example 1 is: a chemical pump stainless steel pump casing surface phosphating treatment agent, made of the following components in parts by weight: maleic anhydride 4, ammonium phosphate 8, s...

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PUM

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Abstract

The invention discloses a surface phosphorization treatment agent of a chemical pump stainless steel pump shell. The surface phosphorization treatment agent consists of solution A and solution B; the solution A is prepared by the following components: bismuth molybdate, sodium chloride, potassium carbonate, urea and water; the solution B is prepared by the following components in parts by weight: maleic anhydride, ammonium phosphate, sulfuric acid, zinc dihydrogen phosphate, acid assistant, potassium hypochlorite and water; and the acid assistant is prepared by the following components in parts by weight: alanine, glycine and citric acid. The phosphorization treatment agent is excellent in film forming stability, greatly improves the compactness and the uniformity of a phosphorization film after the phosphorization treatment, is high in adhesion of the phosphorization film, improves the corrosion resistance and the wear resistance of the chemical pump stainless steel pump shell, is high in purity of the phosphorization film, is easy to clean precipitates, shortens the time in traditional high-temperature surface phosphorization treatment, and solves the problem of easy inclusion of the precipitates in the phosphorization film in the traditional high-temperature phosphorization treatment.

Description

technical field [0001] The invention relates to the field of chemical pump shell surface treatment, in particular to a chemical pump stainless steel pump shell surface phosphating treatment agent. Background technique [0002] The chemical pump is an energy-saving pump jointly designed by the whole country. The performance and technical requirements of the pump are designed according to the performance and size stipulated in the international standard ISO2858. Its advantages: the whole series of water conservancy performance is reasonable in layout, and the user has a wide range of choices. "Back open type" Structure, easy maintenance, efficiency and suction reach the international advanced level. Classification of chemical pumps: stainless steel chemical pumps, plastic chemical pumps, fluoroplastic chemical pumps, electrodynamic chemical pumps, pneumatic chemical pumps. In many fields, chemical pumps are made of No. 20 stainless steel. During processing, the surface of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/78C23C22/12C23C22/68C23C22/73
CPCC23C22/12C23C22/68C23C22/73C23C22/78
Inventor 吴俊
Owner 佛山市顺德区永润金属表面技术处理有限公司
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