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Formula of phosphatizing liquid for metal surface anti-rusting and phosphatizing process

A technology of metal surface and process method, applied in the direction of metal material coating process, etc., can solve the problems of high temperature, large pollution, large energy consumption, etc.

Inactive Publication Date: 2006-05-10
GUIZHOU QUNJIAN PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to: provide a kind of new formula of phosphating solution and phosphating process method, overcome the problems such as coarse crystal grain, film thickness, many sediments, heavy pollution, high temperature of occurrence, big energy consumption, poor corrosion resistance, etc. Improve phosphating quality and anti-rust effect

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: get following raw material and carry out formula: Mariv's salt [XMn(H 2 PO 4 ) 2 .Yfe(H 2 PO 4 ).4H 2 O] is 50g / l, manganese nitrate [Mn(NO 3 ) 2 .6H 2 O] is 50g / l, zinc nitrate [Zn(NO 3 ) 2 .6H 2 O] is 140g / l, accelerator (Ni +2 ) is 3g / l, the surfactant is 8g / l, the water is 2 / 3 volume of the mixture of the above chemicals, and the amount of iron filings is appropriate.

[0030] According to the following process: First, according to the formula, add chemicals to 2 / 3 volume of water at 40-80°C, fully dissolve and heat up to 80-90°C, then cool to room temperature, and draw out the supernatant after fully settling In another clean phosphating tank, add iron filings in an appropriate amount to increase Fe +2 content until the tank solution is brown; second, adjust the acid ratio (free acidity / total acidity) of the solution, and the acid ratio control range is 1:20; third, metal surface pretreatment, that is, surface cleaning, degreasing , water...

Embodiment 2

[0031] Embodiment 2: get the following raw materials and carry out formula: Mariv's salt [XMn(H 2 PO 4 ) 2 .Yfe(H 2 PO 4 ).4H 2 O] is 60g / l, manganese nitrate [Mn(NO 3 ) 2 .6H 2 O] is 60g / l, zinc nitrate [Zn(NO 3 ) 2 .6H 2 O] is 160g / l, accelerator (Ni +2 ) is 6g / l, the surfactant is 12g / l, the water is 2 / 3 volume of the mixture of the above chemicals, and the amount of iron filings is appropriate.

[0032] The phosphating process is as follows: First, according to the formula, add chemicals to 2 / 3 volume of water at 70°C, fully dissolve and heat up to 80-90°C, then cool to room temperature, and pump out the supernatant liquid to another place after fully settling In the clean phosphating tank, iron filings are added in an appropriate amount to increase Fe +2content until the tank solution is brown; second, adjust the acid ratio (free acidity / total acidity) of the solution, and the acid ratio control range is 1:40; third, metal surface pretreatment, that is, surfac...

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PUM

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Abstract

This invention discloses an anti-rust phosphor solution formula of a metal and its technology method, the formula is composed of the following materials: XMn(H2PO4)2íñYfe(H2PO4).4H2O is 20-100g / lú¼Mn(NO3)2íñ6H2O is 20-100g / lú¼Zn(NO3)2íñ6H2O is 100-200g / lú¼Ni+2 is 0.5-10g / lú¼exterior active formula is 0.5-20g / l, water takes up 2 / 3 of the whole chemical, there also has some proper crap irons. The technology method as followsú‘Firsly, preparing solution by the formula; secondly, adjusting the acid proportion of the solution; thirdly, doing the pretreatment on the surface of the metal; fourthly, phosphating; fifthly, ost-treatment, oiling. The phosphor film crystal grain made in this invention is dense, symmetrical, the film is thin, the phosphor coating is symmetrical and dense, and the color is plentiful.

Description

Technical field: [0001] The invention relates to a formula and a treatment process of a metal surface chemical treatment solution, in particular to a formula of an antirust phosphating solution and a phosphating process method thereof. [0002] The method provides a chemical formula and a chemical method, and belongs to the technical field of metal surface treatment. Background technique: [0003] In order to improve the rust resistance of the metal surface, the metal surface is usually treated. At present, the common phosphating process adopted for metal surface rust prevention is high-temperature phosphating. The disadvantages of the phosphating film formed in this way are coarse grain and film thickness, and its film weight is 15-40g / m 2 , the film thickness is 10-30μm, there are many sediments, heavy pollution, high temperature, high energy consumption, and poor corrosion resistance. In order to overcome these shortcomings, it is necessary to find solutions from the as...

Claims

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Application Information

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IPC IPC(8): C23C22/07
Inventor 申曙光
Owner GUIZHOU QUNJIAN PRECISION MACHINERY
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