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Preparation method for enamel coating on aluminum alloy surface

A kind of aluminum alloy surface, aluminum alloy technology, applied in the field of aluminum alloy surface treatment, can solve the problem of not obvious effect, easy to fall off, etc., achieve excellent anti-corrosion ability, strong combination, and improve the effect of quality

Inactive Publication Date: 2017-10-13
ANHUI HUOSHAN LONGXIN METAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these two methods, in actual application, the effect is not very obvious, and the obtained enamel coating is still easy to fall off, so it is urgent to find a kind of enamel coating on the aluminum alloy surface that makes the enamel coating more firmly bonded to the aluminum alloy surface. preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for an aluminum alloy surface enamel coating, comprising the following steps:

[0017] (1) The aluminum alloy substrate is decontaminated, degreased and surface oxide film treated, then placed in a vacuum chamber, the temperature in the vacuum chamber is raised to 120°C, preheated for 1 hour, and filled with monosilane gas, Continue to raise the temperature in the vacuum chamber to 340°C. After 5 hours, stop heating, let it cool down to 90°C naturally, and take out the aluminum alloy substrate;

[0018] (2) Immediately spray a glaze slurry with a thickness of 50 μm on the surface of the aluminum alloy substrate, put it in an oven at a temperature of 80°C, bake it for 40 minutes, put it in a resistance furnace, and sinter it at a temperature of 350°C for 4 minutes. After cooling The finished product is obtained, wherein the glaze slurry is made of the following components by weight: 60 parts of base agent, 5 parts of flux, 10 parts of adhesive, 1 par...

Embodiment 2

[0024] A preparation method for an aluminum alloy surface enamel coating, comprising the following steps:

[0025] (1) The aluminum alloy substrate is decontaminated, degreased and surface oxide film treated, then placed in a vacuum chamber, the temperature in the vacuum chamber is raised to 130°C, preheated for 1 hour, and then filled with monosilane gas, Continue to raise the temperature in the vacuum chamber to 350°C. After 5.5 hours, stop heating, let it cool down to 95°C naturally, and take out the aluminum alloy substrate;

[0026] (2) Immediately spray a glaze slurry with a thickness of 60 μm on the surface of the aluminum alloy substrate, put it into an oven at a temperature of 80°C, bake it for 40 minutes, put it into a resistance furnace, and sinter it at a temperature of 370°C for 5 minutes. After cooling The finished product is obtained, wherein the glaze slurry is made of the following components by weight: 65 parts of base agent, 6 parts of flux, 13 parts of adhe...

Embodiment 3

[0032] A preparation method for an aluminum alloy surface enamel coating, comprising the following steps:

[0033] (1) The aluminum alloy substrate is decontaminated, degreased and surface oxide film treated, then placed in a vacuum chamber, the temperature in the vacuum chamber is raised to 140°C, preheated for 1 hour, and filled with monosilane gas, Continue to raise the temperature in the vacuum chamber to 360°C. After 6 hours, stop heating, let it cool naturally to 100°C, and take out the aluminum alloy substrate;

[0034] (2) Immediately spray a glaze slurry with a thickness of 70 μm on the surface of the aluminum alloy substrate, put it into an oven at a temperature of 80°C, bake it for 40 minutes, put it into a resistance furnace, and sinter it at a temperature of 400°C for 6 minutes. After cooling The finished product is obtained, wherein the glaze slurry is made of the following components by weight: 70 parts of base agent, 7 parts of flux, 15 parts of adhesive agent,...

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PUM

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Abstract

The invention discloses a method for preparing an enamel coating on the surface of an aluminum alloy, which comprises the following steps: (1) Decontamination, oil removal and surface oxide film removal are performed on the aluminum alloy substrate, and then put into a vacuum chamber, and the The temperature rises to 120-140°C. After preheating for 1 hour, fill it with monosilane gas, continue to raise the temperature in the vacuum chamber to 340-360°C, and after 5-6 hours, stop heating and let it cool naturally to At 90-100°C, take out the aluminum alloy substrate; (2) Immediately spray glaze slurry with a thickness of 50-70μm on the surface of the aluminum alloy substrate, put it in an oven at 80°C, bake for 40 minutes, and put the resistor In the furnace, it is sintered at a temperature of 350-400°C for 4-6 minutes, and the finished product is obtained after cooling. The enamel coating prepared by the method provided by the invention has excellent wear resistance, corrosion resistance and mechanical impact resistance, and greatly improves the quality of aluminum alloy products.

Description

technical field [0001] The invention belongs to the field of aluminum alloy surface treatment, and in particular relates to a preparation method of an aluminum alloy surface enamel coating. Background technique [0002] Aluminum alloy has the advantages of light weight, high specific strength, easy strengthening, good thermal and electrical conductivity, good plasticity and formability, and no low-temperature brittleness. It can be used as an ideal structural material and is widely used in automobiles, aircraft, electronics, communications, Shipbuilding, construction and other fields achieve the effects of light weight, energy saving, comfort and environmental protection, and become the most widely used metal in the world today except steel. The enamel glaze is used to paint on the metal body and is composed of a glassy substance of the alkali-boron-silicate system. The enamel glaze is applied to the metal body, which can be firmly combined with the body after firing, and h...

Claims

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Application Information

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IPC IPC(8): C23D3/00C23D5/02C03C8/00
CPCC23D3/00C03C8/00C03C2207/08C23D5/02
Inventor 华兴龙华玲玲
Owner ANHUI HUOSHAN LONGXIN METAL TECH CO LTD