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Multifunctional metal surface treatment solution

A metal surface treatment, multi-functional technology, applied in the direction of metal material coating process, etc., can solve the problems of high operating cost, deformation of thin-walled metal structural parts, large investment, etc., and achieve the effect of scientific and reasonable formula

Inactive Publication Date: 2014-11-05
郭衡怀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: manual grinding and derusting requires a lot of work and low efficiency, and the dust will cause great harm to personal health; although shot blasting and sandblasting can reduce personal labor intensity and relatively high efficiency, they are harmful to metal parts. The damage is very large, especially for thin-walled metal structural parts, causing serious deformation. The investment of shot peening and sandblasting equipment is large, and the operating cost is high.

Method used

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  • Multifunctional metal surface treatment solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Quality formula of Example 1: See Table 1.

[0050] The function of embodiment 1: it is suitable for cold-rolled steel plate black metal workpieces contaminated by light rust and light oil, and the metal materials can be derusted, degreased, passivated, and phosphorus-treated in one step in the same tank at room temperature or heated. treatment. The treated surface has good corrosion resistance and a gray-white protective film with good adhesion. Can improve the adhesion of the applied paint.

[0051] The practical application of embodiment 1:

[0052] 1. The representative structural parts that adopt the brush coating method for surface treatment are as follows. The brush coating method has the advantages of convenient construction, no limitation of the site, no missing coating, no exposed bottom, and good effect.

[0053] (1) Circular pipe fittings and railings for bucket wheel machines and mixers.

[0054] (2) Oil pipeline steel pipe fittings of automobile cran...

Embodiment 2

[0059] Quality formula of Example 2: See Table 1.

[0060] The function of embodiment 1: the same as embodiment 1.

[0061] The practical application of embodiment 2:

[0062] 1. Cold-rolled thin plate parts: such as air conditioners, refrigerators, screen cabinet doors, and screen cabinet partitions.

[0063] 2. Cold-rolled thin plate parts: head and face parts of automobile cabs, box parts for various automobiles.

[0064] 3. Screen cabinet products of various cold-rolled plates for electrical appliances.

Embodiment 3

[0065] Quality formula of Example 3: See Table 1.

[0066] The function effect of embodiment 3:

[0067] 1. It is mainly used for ferrous metal workpieces of hot-rolled steel sheets contaminated by light rust and light oil. At room temperature, the metal materials are simultaneously derusted, degreased, passivated and phosphated in one step in the same tank. The treated surface forms a strong off-white protective film with high corrosion resistance and strong adhesion.

[0068] 2. Roller coating or brush coating can also be used to remove rust on the outer surface of steel structures to achieve rust removal, oil removal, passivation, and phosphating treatment, and a gray-white protective film is formed on the surface.

[0069] 3. This layer of film achieves the purpose of rust removal and anti-rust; it increases the barrier effect of the plate against corrosion, improves the corrosion resistance of the hot-rolled steel plate itself, can improve the adhesion of the coated pain...

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Abstract

The invention discloses a multifunctional metal surface treatment solution which comprises the following components in percentage by mass: 30-60 percent of phosphoric acid, 5-10 percent of accelerator, 15-20 percent of derusting transforming agent, 3-5 percent of corrosion inhibitor, 1-2 percent of degreaser, 0.5-3 percent of passivator and 5-30 percent of water, wherein the accelerator is tartaric acid or / or citric acid, the derusting transforming agent is zinc phosphate or / and zinc nitrate or / and zinc oxide; the corrosion inhibitor is aluminium hydroxide or / and sodium nitrite, the degreaser is sodium alkylbenzenesulfonate or / and sodium fluoride; and the passivator is bichromate or / and ammonium molybdate or / and magnesium chloride. The multifunctional metal surface treatment solution has the advantages of scientific and reasonable formula, capability of removing rust, preventing rust and removing grease by being directly sprayed on the surface of metal, and also capability of replacing an anti-corrosive primer.

Description

technical field [0001] The invention relates to a multifunctional metal surface treatment liquid with the functions of rust removal, rust prevention and oil removal. Background technique [0002] Before the surface treatment of the current metal structural parts, it is generally derusted, then painted with an antirust primer, and finally painted with a topcoat. In the derusting treatment process, manual grinding and derusting are generally used, or shot blasting and derusting, or sand blasting and derusting. Its disadvantages: manual grinding and derusting requires a lot of work and low efficiency, and the dust will cause great harm to personal health; although shot blasting and sandblasting can reduce personal labor intensity and relatively high efficiency, they are harmful to metal parts. The damage is very large, especially for thin-walled metal structural parts, causing serious deformation. The investment in shot peening and sandblasting equipment is large, and the oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/44C23C22/42C23C22/36C23C22/20C23C22/17
Inventor 郭衡怀郭洋
Owner 郭衡怀
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