Steel plate surface phosphatization treatment agent

A technology of phosphating treatment and steel plate, applied in the direction of metal material coating process, etc., can solve the problems of easy detachment of phosphating film, unstable film formation, etc., to improve the density and uniformity, good film formation stability, improve The effect of corrosion and wear resistance

Inactive Publication Date: 2015-04-08
ANHUI HUACAN COLOR STEEL SHEET TECH
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AI Technical Summary

Problems solved by technology

But the current phosphating treatment agent needs to be treated at a higher temperature, the film formation is unstable, and the phosphating film is easy to fall off

Method used

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Embodiment Construction

[0009] A phosphating agent for the surface of a steel plate is characterized in that, by weight, it consists of the following components: 6-9 parts of maleic anhydride, 5-8 parts of ammonium phosphate, 1-2 parts of sulfuric acid, 3-3 parts of zinc chloride 5 parts, 0.1-0.2 parts of arsenic pentafluoride, 1-2 parts of potassium hypochlorite, 55-60 parts of water.

[0010] Preferably, a phosphating treatment agent for the surface of a steel plate is composed of the following components by weight: 8 parts of maleic anhydride, 7 parts of ammonium phosphate, 1.2 parts of sulfuric acid, 4 parts of zinc chloride, 0.15 parts of arsenic pentafluoride 1.5 parts of potassium hypochlorite, 58 parts of water.

[0011] A method for using a phosphating treatment agent on the surface of a steel plate. The treatment temperature of the treatment agent is 33-40° C., and the treatment time is 1-3 minutes.

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Abstract

The invention relates to a steel plate surface phosphatization treatment agent. The steel plate surface phosphatization treatment agent comprises 6-9 parts of maleic anhydride, 5-8 parts of ammonium phosphate, 1-2 parts of sulfuric acid, 3-5 parts of zinc chloride, 0.1-0.2 parts of arsenic pentafluoride, 1-2 parts of potassium hypochlorite and 55-60 parts of water. The steel plate surface phosphatization treatment agent has good film forming stability, greatly improves compactness and uniformity of a phosphated film, improves steel plate corrosion resistance and wear resistance, can be used at a low treatment temperature of 33-40 DEG C, shortens time to 1-3min and improves phosphatization efficiency.

Description

technical field [0001] The invention belongs to the field of steel plate surface treatment, in particular to a phosphating treatment agent for the steel plate surface. Background technique [0002] Now the steel plate is often advanced phosphating treatment before painting and other steps. The phosphating effect is (1) the effect of phosphating before painting: ① Enhance the bonding force between the coating film (such as paint coating) and the workpiece. ② Improve the corrosion resistance of the surface coating of the workpiece after painting. ③ Improve decoration. (2) The role of non-coating phosphating: ① Improve the wear resistance of the workpiece; ② Make the workpiece lubricious during machining; ③ Improve the corrosion resistance of the workpiece. However, the current phosphating treatment agents need to be treated at higher temperatures, the film formation is unstable, and the phosphating film is easy to fall off. Contents of the invention [0003] The object of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/36
CPCC23C22/362
Inventor 云晓杰
Owner ANHUI HUACAN COLOR STEEL SHEET TECH
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