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Neutralizer/passivator in metal surface treatment technique

A technology of metal surface treatment and passivation agent, applied in the direction of metal material coating process, etc., can solve the problems of hidden dangers buried in the passivation process, and achieve the effects of artificial reduction, cost saving and cost saving

Inactive Publication Date: 2013-05-08
郭仰南
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the uncertainty of the quality of the neutralization process, this creates hidden dangers for the next passivation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: the present invention is composed of the following components by mass percentage,

[0033] Yuan Mingfen 59.9%

[0034] Sodium pyrophosphate 25%

[0035] Sodium hydroxide 9%

[0036] Sodium carbonate 3%

[0037] Borax 1%

[0038] Sodium Metasilicate 1%

[0039] Phosphoric acid 1%

[0040] Sodium Lauryl Sulfate 0.1%.

Embodiment 2

[0041] Embodiment 2: the present invention is made up of the following components by mass percentage,

[0042] Yuan Ming powder 55%

[0043] Sodium pyrophosphate 30%

[0044] Sodium hydroxide 15%

[0045] Sodium carbonate 1%

[0046] Borax 0.5%

[0047] Sodium metasilicate 0.5%

[0048] Phosphoric acid 1.5%

[0049] Sodium Lauryl Sulfate 0.2%.

Embodiment 3

[0050] Embodiment 3: the present invention is made up of the following components by mass percentage,

[0051] Yuan Ming powder 65%

[0052] Sodium pyrophosphate 20%

[0053] Sodium hydroxide 5%

[0054] Sodium carbonate 5%

[0055] Borax 1.5%

[0056] Sodium Metasilicate 1.5%

[0057] Phosphoric acid 1.5%

[0058] Sodium Lauryl Sulfate 0.3%.

[0059] The above-mentioned 3 embodiments are verified by actual production, wherein the neutralization / passivation effect of embodiment 1 is the best.

[0060] The manufacturing method of the neutralizing / passivating agent of the present invention is as follows: (1) firstly, 1kg phosphoric acid is loaded into the wall-heated reaction kettle, and the stirring device is started, and the stirring device is 30 revolutions per minute (the number of revolutions of the stirring device in the next step is always 30 rpm, no foaming, no splashing).

[0061] (2) Next, 3kg of sodium carbonate (powder) was slowly pour...

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PUM

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Abstract

The invention relates to a neutralizer / passivator in a metal surface treatment technique, belonging to the technical field of metal surface treatment. The neutralizer / passivator provided by the invention can thoroughly react with deruster residual liquid without scabbing on the metal surface, and has favorable passivation effect. The neutralizer / passivator is prepared from the following components in percentage by mass: 55-65% of glauber salt, 20-30% of sodium pyrophosphate, 5-15% of sodium hydroxide, 1-5% of sodium carbonate, 0.5-1.5% of borax, 0.5-1.5% of sodium metasilicate, 0.5-1.5% of phosphoric acid and 0.1-0.3% of sodium lauryl sulfate.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and more specifically relates to a neutralizing / passivating agent in the metal surface treatment process. technical background [0002] The neutralizer belongs to a process product of the anti-corrosion treatment part of the ferrous metal surface in the field of surface engineering. It is specifically aimed at the rust remover with hydrochloric acid as the main body. A process product for reprocessing the rust agent, commonly known as "neutralizer". After the neutralization process, a series of passivation, surface adjustment, phosphating and other treatments are carried out, and finally meet the standards for long-term anti-corrosion treatments such as swimming paint, spraying or electroplating. [0003] Existing neutralizers are basically strong alkaline components such as sodium hydroxide and sodium carbonate. Although acid and alkali are neutralized to form water, the genera...

Claims

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Application Information

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IPC IPC(8): C23C22/60
Inventor 郭仰南
Owner 郭仰南
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