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Metal product surface corrosion resistance processing process

A treatment process and corrosion-resistant technology, which is applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problem of oxidation and blackening of sandblasting surface, and achieve the effect of improving firmness

Inactive Publication Date: 2018-12-07
NINGBO SHEN XIN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a metal product surface corrosion-resistant treatment process to solve the problem of oxidation and blackening of the sandblasting surface on the surface of metal and metal alloy products

Method used

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  • Metal product surface corrosion resistance processing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A metal product surface corrosion-resistant treatment process, comprising the following steps:

[0033] 1) Put metal products in a heat treatment furnace, and carry out surface nickel infiltration in a high-pressure argon environment and keep it warm for 2 hours and then cool down to 30-50°C; the preparation method of surface nickel infiltration is to process the processed After the metal product is sealed, it is buried in the mixture of nano-nickel powder and nano-carbon powder, heated to 350°C under 3MPa argon atmosphere, and kept for 2 hours, then cooled to 30-50°C. The mass ratio of nano-nickel powder to nano-carbon powder is 1:20.

[0034] 2) Put the metal product treated in step 1) in 12% ethylenediaminetetraacetic acid disodium aqueous solution for 5 seconds, take it out and dry it directly.

[0035] 3) Sandblasting the metal product after drying in step 2); the sandblasting treatment is ceramic sandblasting, and the surface roughness of the metal product is con...

Embodiment 2

[0039] A metal product surface corrosion-resistant treatment process, comprising the following steps:

[0040] 1) Put the metal product in a heat treatment furnace, and carry out surface nickel infiltration under high-pressure argon atmosphere and keep it warm for 4 hours and then cool down to 30-50°C; the preparation method of surface nickel infiltration is to process the processed After the metal product is sealed, it is buried in the mixture of nano-nickel powder and nano-carbon powder, heated to 380°C in an argon atmosphere of 5MPa, kept for 4 hours, and then cooled to 30-50°C. The mass ratio of nano nickel powder to nano carbon powder is 1:10.

[0041] 2) Put the metal product treated in step 1) in 12% disodium edetate aqueous solution for 10 seconds, take it out and dry it directly.

[0042] 3) Sandblasting the metal product after drying in step 2); the sandblasting treatment is ceramic sandblasting, and the surface roughness of the metal product is controlled at 40-60 ...

Embodiment 3

[0046] A metal product surface corrosion-resistant treatment process, comprising the following steps:

[0047] 1) Put metal products in a heat treatment furnace, and carry out surface nickel infiltration in a high-pressure argon environment and keep it warm for 3 hours and then cool down to 30-50°C; the preparation method of surface nickel infiltration is to process the processed After the metal product is sealed, it is buried in a mixture of nano-nickel powder and nano-carbon powder, heated to 360°C in a 4MPa argon atmosphere, kept for 3 hours, and then cooled to 30-50°C. The mass ratio of nano-nickel powder to nano-carbon powder is 1:15.

[0048] 2) Put the metal product treated in step 1) in 12% ethylenediaminetetraacetic acid disodium aqueous solution for 5 seconds, take it out and dry it directly.

[0049] 3) Sandblasting the metal product after drying in step 2); the sandblasting treatment is ceramic sandblasting, and the surface roughness of the metal product is contro...

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Abstract

The invention relates to a metal product surface corrosion resistance processing process. A metal product is put into a heat treatment furnace, surface nickelizing is conducted in a high-pressure argon environment, then the metal product is put into an ethylene diamine tetraacetic acid aqueous solution, and the metal product is directly dried after being taken out; sand blasting treatment and pretreatment are conducted; and finally the metal product is immersed into a film forming agent, so that a protective film is formed on the surface of the metal product. A complex compound is formed on the metal surface, after making contact with the film forming agent, the complex compound and the film forming agent are mixed, the integral combination of the surface of the metal product and the protective film is ensured, and firmness of the protective film is improved.

Description

technical field [0001] The invention belongs to a metal surface treatment process, in particular to a metal product surface corrosion-resistant treatment process. Background technique [0002] Although metals and their alloys are widely used, such as aluminum and aluminum alloys, zinc and zinc alloys, stainless steel, tinplate, copper, galvanized sheets, etc., due to the low electrode potential of most metals, when in a humid environment and high Contact corrosion is very easy to occur when potential metals are in contact. In addition, during the manufacturing process of metal alloys, various elements are added due to the pursuit of high mechanical properties and other comprehensive properties. The existence of stress makes the metal alloy material very easy to cause corrosion of micro-battery in the use environment. Moreover, in the environment where metal alloys are used, there is inevitably humid air, which condenses on the surface of the metal alloy material to form a ...

Claims

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Application Information

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IPC IPC(8): C23C10/36C23C22/05
CPCC23C10/36C23C22/05
Inventor 黄翠刚简开宇
Owner NINGBO SHEN XIN ELECTRONICS CO LTD
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