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High-temperature-resistant galvanized and aluminized zinc paint and preparation method thereof

An aluminum-zinc-plating, high-temperature-resistant technology, used in anti-corrosion coatings, fire-retardant coatings, coatings, etc., can solve the problems of difficult recovery of zinc stripping residues, easy environmental pollution of zinc stripping solution, and inability to completely solve problems, and achieve good anti-zinc resistance. Liquid corrosion ability, good resistance to zinc and aluminum zinc corrosion, low cost effect

Active Publication Date: 2018-10-19
靖江市黎明铸造材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method for zinc stripping, the stripping zinc solution is easy to pollute the environment, and the zinc stripping residue is difficult to recycle, resulting in a huge waste of zinc resources
In addition, the above-mentioned process cannot completely solve the problems of corrosion of sinking rolls and stabilizing rolls in the zinc pot and zinc pot and removal of the sticky zinc layer in the production of hot-dip galvanizing and hot-dip galvalume

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-temperature-resistant galvanized galvalume coating, which is composed of a base material and additives. The base material is composed of boron-rich slag powder with a mass fraction of 58%, zircon powder with 35% and alumina powder with 7%. The specific preparation process steps yes:

[0025] ①Grind the massive boron-rich slag with a size of 20-40mm×20-40mm×20-40mm in a ball mill to form 180-240 mesh boron-rich slag powder. The chemical composition mass fraction of boron-rich slag powder is: 22.17%B 2 o 3 , 49.08% MgO, 20.35% SiO 2 , 5.51% CaO, 2.65% Al 2 o 3 , TFe 0.24%, 58% mass fraction, boron-rich slag powder with a particle size of 180-240 mesh and 35% mass fraction of zircon powder with a particle size of 120-160 mesh and 7% mass fraction of alumina with a particle size of 280-350 mesh Mix the powder evenly to prepare the base material;

[0026] ② Add additives in sequence to the base material: 50-200nm graphite powder, sepiolite, 100-180μm chromium oxi...

Embodiment 2

[0029] A high-temperature-resistant galvanized galvalume coating consisting of a base material and additives. The base material is composed of boron-rich slag powder with a mass fraction of 55%, zircon powder with 37% and alumina powder with 8%. The specific preparation process steps yes:

[0030] ①Grind the massive boron-rich slag with a size of 20-40mm×20-40mm×20-40mm in a ball mill to form 180-240 mesh boron-rich slag powder. The chemical composition mass fraction of boron-rich slag powder is: 24.81%B 2 o 3 , 46.52% MgO, 19.99% SiO 2 , 6.28% CaO, 2.14% Al 2 o 3 , TFe 0.26%, 55% mass fraction, boron-rich slag powder with a particle size of 180-240 mesh and 37% mass fraction of zircon powder with a particle size of 120-160 mesh and 8% mass fraction of alumina with a particle size of 280-350 mesh Mix the powder evenly to prepare the base material;

[0031] ② Add additives in sequence to the base material: 50-200nm graphite powder, sepiolite, 100-180μm chromium oxide powde...

Embodiment 3

[0034] A high-temperature-resistant galvanized galvalume coating consisting of a base material and additives. The base material is composed of boron-rich slag powder with a mass fraction of 56%, zircon powder with 36% and alumina powder with 8%. The specific preparation process steps yes:

[0035] ①Grind the massive boron-rich slag with a size of 20-40mm×20-40mm×20-40mm in a ball mill to form 180-240 mesh boron-rich slag powder. The chemical composition mass fraction of boron-rich slag powder is: 23.07%B 2 o 3 , 49.08% MgO, 18.88% SiO 2 , 6.15% CaO, 2.50% Al 2 o 3 , TFe 0.32%, the mass fraction of 56%, particle size of 180-240 mesh boron-rich slag powder and mass fraction of 36%, particle size of 120-160 mesh zircon powder and mass fraction of 8%, particle size of 280-350 mesh alumina Mix the powder evenly to prepare the base material;

[0036] ② Add additives in sequence to the base material: 50-200nm graphite powder, sepiolite, 100-180μm chromium oxide powder, water gla...

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Abstract

The invention discloses high-temperature-resistant galvanized and aluminized zinc paint and a preparation method thereof, and belongs to the hot galvanizing technology field. The high-temperature-resistant galvanized and aluminized zinc paint mainly comprises a base material and additives. The base material is prepared from, by mass, 55-58% of boron-enriched residue powder, 35-37% of zircon powderand 6-8% of alumina powder. The additives include graphite powder, sepiolite, chromic oxide powder, water glass, carboxymethylcellulose CMC and water. The method includes stirring the base material and the graphite powder in a stirrer for 5-8 minutes, adding the sepiolite, the carboxymethylcellulose CMC and the chromic oxide powder, continuing stirring in the a stirrer for 15-18 minutes, adding the water glass and the water, and continuing stirring in the stirrer for 22-25 minutes to obtain the high-temperature-resistant galvanized and aluminized zinc paint.

Description

technical field [0001] The invention discloses a galvanized galvalume coating and a preparation method thereof, in particular to a high-temperature-resistant galvanized galvalume coating and a preparation method thereof, belonging to the technical field of hot-dip galvanizing. Background technique [0002] Hot-dip pure galvanized products and their alloying (such as hot-dip galvanized) products have excellent corrosion resistance, and the cost is relatively low. Comparable, so in the automotive and home appliances and construction fields have been widely used. At present, almost all Japanese cars use alloyed hot-dip galvanized sheets as outer panels, and the automobile manufacturing industries in Europe and the United States are also continuously increasing the use of hot-dip galvanized steel sheets. However, in the hot-dipping process of hot-dip galvanizing and hot-dip galvanized material production, due to the direct contact between the zinc liquid and the zinc pot, the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/61C09D7/65C09D5/08
CPCC09D7/65C09D1/00C09D5/08C09D5/18C09D7/61
Inventor 顾其荣顾鑫旺姚萍
Owner 靖江市黎明铸造材料厂
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