Brush-coat type phosphating solution containing rust and preparation method thereof

A phosphating solution, with rust technology, applied in the field of phosphating solution, can solve the problems of not being able to adapt to new situations, long phosphating time, complicated procedures, etc.

Active Publication Date: 2011-10-19
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The phosphating process of iron and steel parts is mostly medium-high temperature phosphating, which requires degreasing and rust pretreatment before treatment, and the temperature is high, energy consumption is high, phosphating time is long, and the process is complicated
In addition, the most common methods of phosphating are spraying or soaking. With the expansion of the application field of phosphating, these methods can no longer adapt to the new situation.

Method used

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  • Brush-coat type phosphating solution containing rust and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The brushing type rusty phosphating solution of the present invention is made up of following raw material:

[0028] Phosphoric acid 174mL / L;

[0029] Zinc oxide 1.6g / L;

[0030] EDTA 6g / L;

[0031] Ethanol 126.6mL / L;

[0032] Sodium molybdate 1.5g / L;

[0033] Sodium fluoride 1g / L;

[0034] Nickel sulfate 2g / L;

[0035] Polyethylene glycol 6000 2g / L;

[0036] water balance.

[0037] Add zinc oxide into a small amount of water to make a paste, then add phosphoric acid and stir until fully dissolved. Add EDTA and stir until fully dissolved. Then add ethanol, sodium molybdate, nickel sulfate, polyethylene glycol 6000 in turn, stir evenly, and finally add enough water. The iron door with serious rust is treated by brushing, the film forming effect is good, the film layer is bright black, and the paint film has good adhesion.

Embodiment 2

[0039] The brushing type rusty phosphating solution of the present invention is made up of following raw material:

[0040] Phosphoric acid 208.8mL / L;

[0041] Zinc oxide 1g / L;

[0042] EDTA 10g / L;

[0043] Ethanol 126.6mL / L;

[0044] Sodium molybdate 2.5g / L;

[0045] Sodium fluoride 3g / L;

[0046] Nickel sulfate 1.5g / L;

[0047] Polyethylene glycol 6000 4g / L;

[0048] water balance.

[0049] The preparation method of phosphating solution is the same as in Example 1. It is operated by brushing to deal with the iron ship hull with serious rust, the effect is good, the film layer is bright black, and the bonding force is strong.

Embodiment 3

[0051] The brushing type rusty phosphating solution of the present invention is made up of following raw material:

[0052] Phosphoric acid 139.2mL / L;

[0053] Zinc oxide 3g / L;

[0054] EDTA 4g / L;

[0055] Ethanol 126.6mL / L;

[0056] Sodium molybdate 2g / L;

[0057] Sodium fluoride 1.5g / L;

[0058] Nickel acetate 2g / L;

[0059] Polyethylene glycol 6000 3g / L;

[0060] water balance.

[0061] The preparation method of phosphating solution is the same as in Example 1. It is operated by brushing to deal with the iron bracket with serious rust. The effect is good, the film layer is bright and black, and the bonding force is strong.

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Abstract

The invention discloses brush-coat type phosphating solution containing rust and a preparation method, which relate to phosphating solution. The invention provides the brush-coat type phosphating solution which has the advantages of cleanness, environment friendliness, quick film formation, big binding force, high anticorrosion performance, simple and convenient operation, small investment, low cost and the like, is suitable for large workpieces and outdoor equipment and can accomplish oil and rust removal, phosphation and passivation in one step, and a preparation method thereof. The brush-coat type phosphating solution containing rust comprises the following raw materials: phosphoric acid, zinc oxide, ethylene diamine tetraacetic acid, ethanol, sodium molybdate, sodium fluoride, nickel sulfate, polyethylene glycol 6000 and the balance of water. The preparation method comprises: adding the zinc oxide into a small amount of water and making pulp; and adding phosphoric acid, adding ethylene diamine tetraacetic acid after dissolution, adding ethanol, sodium molybdate, nickel sulfate (or nickel acetate) and polyethylene glycol 6000 in turn, stirring uniformly, adding adequate water, and obtaining the brush-coat type phosphating solution containing rust.

Description

technical field [0001] The invention relates to a phosphating solution, in particular to a brushing type rusty phosphating solution and a preparation method thereof. Background technique [0002] In order to improve the anti-rust ability of the surface of steel parts, the surface is usually phosphating. Phosphating film is mainly used as the bottom layer of paint coating, the lubricating layer of metal cold processing, and the protective layer of metal surface, etc., which can play various functions such as rust prevention, wear reduction, lubrication, and improvement of adhesion between paint and metal substrate. [0003] The phosphating process for iron and steel parts is mostly medium-high temperature phosphating, which requires degreasing and rust pretreatment before treatment, and the temperature is high, energy consumption is high, phosphating time is long, and the process is complicated. In addition, the most commonly used methods of phosphating are spraying or soaki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/44
Inventor 王周成赵梓岑严维力
Owner XIAMEN UNIV
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