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Enamel treatment technology for internal wall of steel radiator

A treatment process and radiator technology, applied in coatings and other directions, can solve the problems of poor quality of internal anti-corrosion coatings and shortened service life, and achieve the effect of solving corrosion leakage, low cost and reducing replacement budget funds.

Inactive Publication Date: 2013-09-11
TIANJIN JINLITONG METAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem that the service life of existing radiators is reduced due to the poor quality of internal anti-corrosion coatings, and to provide an enameling treatment process for the inner wall of steel radiators

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Immerse the single piece or group of steel radiators in hydrochloric acid solution with a mass concentration of 1% to remove oil and rust on the inner and outer surfaces of the single piece or group of steel radiators. The immersion time depends on the temperature of the single piece or group of radiators Depending on the degree of oil pollution and floating rust pollution;

[0024] Immerse the single piece or group of steel radiators after pickling in a sodium hydroxide solution with a mass concentration of 2% to neutralize the residual hydrochloric acid solution during the pickling process;

[0025] Immerse the single piece or group of steel radiators after alkali washing in water and wash them, dilute and remove the residual liquid after neutralization after pickling and alkali washing;

[0026] Immerse the washed steel radiator sheet or group sheet in the phosphating solution with a mass concentration of 5% to form a protective film;

[0027] Fill the above-mention...

Embodiment 2

[0031] Immerse the single piece or group of steel radiators in a hydrochloric acid solution with a mass concentration of 3%, and remove the oil and rust on the inner and outer surfaces of the single piece or group of steel radiators;

[0032] Immerse the pickled steel radiator single sheet or group sheet in a sodium hydroxide solution with a mass concentration of 4%;

[0033] Submerge the single piece or group of steel radiators after alkali cleaning in water for washing;

[0034] Immerse the washed steel radiator sheet or group sheet in the phosphating solution with a mass concentration of 8%;

[0035] Fill the above-mentioned steel radiator single piece or group piece with enamel powder slurry;

[0036] 50°C hot air circulation to dry and cure the inner coating;

[0037] Bake the inner coating at 800°C for 4 minutes.

Embodiment 3

[0039] Immerse the single piece or group of steel radiators in a hydrochloric acid solution with a mass concentration of 3%, and remove the oil and rust on the inner and outer surfaces of the single piece or group of steel radiators;

[0040] Immerse the pickled steel radiator single sheet or group sheet in a sodium hydroxide solution with a mass concentration of 5%;

[0041] Submerge the single piece or group of steel radiators after alkali cleaning in water for washing;

[0042] Immerse the washed steel radiator sheet or group sheet in the phosphating solution with a mass concentration of 10%;

[0043] Fill the above-mentioned steel radiator single piece or group piece with enamel powder slurry;

[0044] 60 ℃ hot air circulation to dry and cure the inner coating;

[0045] Bake the inner coating at 860°C for 5 minutes.

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PUM

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Abstract

The invention discloses an enamel treatment technology for an internal wall of a steel radiator. The technology comprises the steps that a single sheet or a group of sheets of the steel radiator is / are subjected to acid washing, alkaline washing and water washing; the internal wall or the internal walls of the single sheet or the group of sheets of the steel radiator is / are treated by a phosphating solution; the single sheet or the group of sheets of the steel radiator is / are filled with an enamel powder slurry solution to form an internal coating; and finally, the internal coating is blow-dried and solidified by heated air circularly, and baked at a high temperature. The technology uses the corrosion resistant characteristic of enamel to allow the corrosion resistant quality of the interior of a steel radiator product to be stable; the corrosion resistant life is at least 10-15 years; the technology is simple in procedure, high in efficiency, quick and convenient, does not affect heat conduction and heat dissipation performances of the steel radiator, and is suitable for massive industrial production; single sheet or group sheet enamel processing can be selected; the steel radiator treated by the treatment technology has high acid resistance, high alkali resistance, and high impact resistance; the service life of the radiator can be prolonged as much as possible; and the unnecessary loss arising from leakage of the radiator is reduced greatly.

Description

technical field [0001] The invention relates to a surface treatment process for a heat exchange device, in particular to a surface treatment process for the inner wall of a heat exchange or heat transfer device. Background technique [0002] All kinds of heating radiators currently on the market use some domestic or imported internal anti-corrosion coatings. The quality of the radiator is uneven, resulting in the general service life of the radiator is less than 5 years. In some areas where the water quality is relatively acidic, the phenomenon of corrosion and perforation of radiators occurs even within one to two years, causing damage to residents' home decoration and furniture. What's more, several floors will suffer from flooding problems, causing heavy losses. Contents of the invention [0003] The invention aims to solve the technical problem that the service life of the existing radiator is reduced due to the unqualified internal anti-corrosion coating quality, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F19/02
Inventor 高金榜
Owner TIANJIN JINLITONG METAL PROD
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