Preparing method for alloy co-diffusion and Dacromet composite antiseptic coating

An anti-corrosion coating, Dacromet technology, applied in anti-corrosion coatings, metal material coating processes, coatings and other directions, can solve problems such as chromium pollution, insufficient surface hardness, and achieve high work efficiency, uniform thickness, and uniform coating. Effect

Active Publication Date: 2016-10-12
马克菲尔(长沙)新型支档科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Dacromet, also known as Dacromet rust, high-gram rust, zinc-chromium film, etc., refers to coating the metal substrate with a liquid treatment solution containing zinc flakes, aluminum flakes, chromic anhydride, ethylene glycol, etc. After baking, a layer of non-decorative coating film with excellent corrosion resistance is formed on the surface of the metal substrate. The disadvantage is that the surface hardness is insufficient
In addition, since chromium plays a key role in Dacromet coating metal anti-corrosion technology, its content in the slurry is more than 20-26 mg per liter. The curi

Method used

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Examples

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specific Embodiment 1

[0028] A method for preparing alloy co-infiltration and Dacromet composite anti-corrosion coating provided in this embodiment comprises the following steps:

[0029] Step 1. Weigh the following co-penetrating agent raw materials in parts by mass: 100 parts of zinc powder, 15 parts of aluminum powder, 85 parts of aluminum oxide powder, 20 parts of nickel powder, 3 parts of cerium oxide powder, 0.6 part of ammonium chloride, The particle diameter of above-mentioned raw material is 300 orders;

[0030] Step 2. Mix the zinc powder, aluminum powder, alumina powder, nickel powder and cerium oxide powder weighed in step 1 evenly, heat to 150-200°C, keep warm for 30-50 minutes, cool to room temperature and then mix with After the ammonium chloride is mixed evenly, the co-penetration agent is prepared;

[0031] Step 3: Stack the plate-shaped metal parts with clean surface treatment into stacks with similar height and width, and lay a layer of infiltration agent prepared in step 2 betw...

specific Embodiment 2

[0040] A kind of alloy co-infiltration and Dacromet composite anticorrosion coating preparation method provided by this embodiment, the specific steps are the same as those of specific embodiment 1, and the difference from specific embodiment 1 is:

[0041] In step 1, the co-infiltration agent raw materials are: 100 parts of zinc powder, 10 parts of aluminum powder, 100 parts of alumina powder, 30 parts of nickel powder, 5 parts of cerium oxide powder, and 0.8 part of ammonium chloride;

[0042] In step five, Dacromet antiseptic raw materials are:

[0043] Component A: 10 parts of zinc flakes and aluminum flakes, wherein the ratio of zinc flakes and aluminum flakes is 2:1; 55 parts of deionized water, 2.0 parts of fatty alcohol polyoxyethylene ether;

[0044] Component B: 10 parts of amorphous compound molybdate compound, 15 parts of barium salt, 0.6 part of hydrogen peroxide, and 1 part of polyethylene glycol;

[0045] In step six, after mixing and stirring the component A and...

specific Embodiment 3

[0047] A kind of alloy co-infiltration and Dacromet composite anticorrosion coating preparation method provided by this embodiment, the specific steps are the same as those of specific embodiment 1, and the difference from specific embodiment 1 is:

[0048] In step 1, the co-penetrating agent raw materials are: 100 parts of zinc powder, 20 parts of aluminum powder, 80 parts of alumina powder, 10 parts of nickel powder, 2 parts of cerium oxide powder, and 0.5 part of ammonium chloride;

[0049] In step five, Dacromet antiseptic raw materials are:

[0050] Component A: 10 parts of zinc flakes and aluminum flakes, wherein the ratio of zinc flakes and aluminum flakes is 2:3; 60 parts of deionized water, 0.5 parts of fatty alcohol polyoxyethylene ether;

[0051] Component B: 10 parts of amorphous compound molybdate compound, 5 parts of barium salt, 0.8 part of hydrogen peroxide, and 3 parts of polyethylene glycol;

[0052] In step 6, after mixing the components A and B weighed in ...

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Abstract

The invention discloses a preparing method for an alloy co-diffusion and Dacromet composite antiseptic coating. The preparing method comprises the following steps that by mass, following co-diffusion agent raw materials are weighed; the weighed raw materials are evenly mixed, and then a co-diffusion agent is prepared; platy metal pieces with the surfaces cleaned thoroughly are stacked into a stack with the height similar to the width, a layer of co-diffusion agent is laid between every two adjacent platy metal pieces, and packaging and bundling are conducted; the packaged and bundled platy metal pieces are placed in a co-diffusion furnace to be heated and subjected to co-diffusion treatment for 2 h-3 h; Dacromet antiseptic raw materials are weighed, mixed and stirred evenly, pH is adjusted, and Dacromet antiseptic coating liquid is prepared; and the platy metal pieces obtained after alloy co-diffusion treatment are placed in a coating liquid immersing cage, then the coating liquid immersing cage is immersed in the Dacromet antiseptic coating liquid and then drained off to be sent into an online drying device, and baking is conducted for 1.5 h-2.5 h at the temperature of 300 DEG C-350 DEG C. The preparing method is suitable for treating the platy metal pieces in batches.

Description

technical field [0001] The invention relates to the technical field of composite anticorrosion treatment of metal parts, in particular to a method for preparing an alloy co-infiltration and Dacromet composite anticorrosion coating. Background technique [0002] Every year, the world's steel corrosion loss accounts for more than 10% of the total steel output, and the economic loss caused by corrosion in industrially developed countries accounts for more than 2% to 4% of the total output value of the national economy; research and develop advanced anti-corrosion technology to reduce economic losses caused by corrosion Prolonging the service life of steel and other metal materials and equipment is of great significance to promoting the development of advanced technology, cutting-edge science and defense industry, as well as the sustainable and coordinated development of the national economy and social environment. [0003] Multi-element alloy co-infiltration is a new type of me...

Claims

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Application Information

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IPC IPC(8): C23C10/30C09D1/00C09D5/10
CPCC09D1/00C09D5/103C09D5/106C23C10/30
Inventor 晋华明
Owner 马克菲尔(长沙)新型支档科技开发有限公司
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