CN102962187A - Transformer oil tank and painting technique for parts thereof - Google Patents

Abstract

The invention discloses a transformer oil tank and a painting technique for parts thereof. The painting technique comprises the following steps: 1, confecting paint; 2, filtering the paint by a sand net of 120-180 meshes after the paint is confected; 3, implementing the painting; and 4, implementing the drying after the painting is finished. The transformer oil tank and the painting technique for the parts thereof, disclosed by the invention, have the advantages of stable quality, corrosion resistance, oxidation resistance, no fading and excellent radiation performance, and improve the painting efficiency and the painting adhesive force.

Description

The enamelling process of oil tank of transformer and parts thereof

Technical field

The invention belongs to field transformer, be specifically related to the enamelling process of oil tank of transformer and parts thereof.

Background technology

In order well to be protected on the surface that makes transformer, such as waterproof, avoid oxidation etc., need to be at the fuel tank of transformer and the finish coatings of parts thereof.Existing enamelling process operating procedure is relatively chaotic, and perhaps processing procedure is lack of standardization, causes the coating surface poor adhesive force, peels off, fades, perishable, the easy phenomenon such as get rusty, and is difficult to guarantee product quality, remains further improvement and perfection.

Summary of the invention

For the deficiencies in the prior art, the invention provides a kind of stay in grade, corrosion-resistant, anti-oxidant, the enamelling process that is used for oil tank of transformer and parts thereof that heat dispersion is good.

Technical scheme: the enamelling process of oil tank of transformer and parts thereof comprises the steps:

The first step, the allotment of painting first, with the metal conditioner Capacity Ratio be intermixture that 3 parts of ethanol add 1 part of butanols to be transferred to viscosity be 17～20S, epoxy light color priming paint is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 24～28S, alkyd varnish is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 18～25S;

Second step is after paint deployment is good, with 120～180 purpose sand net filtrations;

In the 3rd step, to general metal flat, adopt spraying method, during spraying, air pressure is the compressed air of 0.3～0.4MPa, and spraying is 25～30cm with the distance of spray-coating surface, spraying translational speed orientation is as the criterion with paint film, under spray, before one deck paint film, grind off particle with sand paper, and wipe floating ash, again japanning, to general pipe fitting, adopt the lacquer method of filling with, require to fill with completely when filling with lacquer and fully drip the remainder lacquer;

The 4th step was painted with after the lacquer, and described metal conditioner is dried under 25 ℃ of room temperatures, and the time is 0.5h; Described epoxy light color priming paint is dried under 25 ℃ of room temperatures, and the time is 24h, the 20min that perhaps under 20 ℃ normal temperature, dries in the air first, and 105 ℃～115 ℃ lower oven dry, the time is 1h again; Described alkyd varnish is dried under 25 ℃ of room temperatures, and the time is 15h.

As preferably, described metal conditioner is that the weight ratio by lacquer base and Phosphating Solution is that the 4:1 allotment is made.

Beneficial effect: compared with prior art, stay in grade of the present invention, corrosion-resistant, chipping resistance, anti-oxidant, colour-fast, it is good to have a good heat dispersion, has improved simultaneously the adhesive force of japanning efficient and japanning.

The specific embodiment

The invention will be further described below in conjunction with specific embodiment:

Embodiment 1:

The enamelling process of oil tank of transformer and parts thereof comprises the steps:

The first step, the allotment of painting first, with the metal conditioner Capacity Ratio be intermixture that 3 parts of ethanol add 1 part of butanols to be transferred to viscosity be 17S, epoxy light color priming paint is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 24S, alkyd varnish is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 18S;

Second step is after paint deployment is good, with 120 purpose sand net filtrations;

In the 3rd step, to general metal flat, adopt spraying method, during spraying, air pressure is the compressed air of 0.3MPa, and spraying is 25cm with the distance of spray-coating surface, spraying translational speed orientation is as the criterion with paint film, under spray, before one deck paint film, grind off particle with sand paper, and wipe floating ash, again japanning, to general pipe fitting, adopt the lacquer method of filling with, require to fill with completely when filling with lacquer and fully drip the remainder lacquer;

The 4th step was painted with after the lacquer, and described metal conditioner is dried under 25 ℃ of room temperatures, and the time is 0.5h; Described epoxy light color priming paint is dried under 25 ℃ of room temperatures, and the time is 24h, the 20min that perhaps under 20 ℃ normal temperature, dries in the air first, and 105 ℃ of lower oven dry, the time is 1h again; Described alkyd varnish is dried under 25 ℃ of room temperatures, and the time is 15h.

Described metal conditioner is that the weight ratio by lacquer base and Phosphating Solution is that 4:1 allocates and makes.

Embodiment 2:

The enamelling process of oil tank of transformer and parts thereof is characterized in that, comprises the steps:

The first step, the allotment of painting first, with the metal conditioner Capacity Ratio be intermixture that 3 parts of ethanol add 1 part of butanols to be transferred to viscosity be 20S, epoxy light color priming paint is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 28S, alkyd varnish is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 25S;

Second step is after paint deployment is good, with 180 purpose sand net filtrations;

In the 3rd step, to general metal flat, adopt spraying method, during spraying, air pressure is the compressed air of 0.4MPa, and spraying is 30cm with the distance of spray-coating surface, spraying translational speed orientation is as the criterion with paint film, under spray, before one deck paint film, grind off particle with sand paper, and wipe floating ash, again japanning, to general pipe fitting, adopt the lacquer method of filling with, require to fill with completely when filling with lacquer and fully drip the remainder lacquer;

The 4th step was painted with after the lacquer, and described metal conditioner is dried under 25 ℃ of room temperatures, and the time is 0.5h; Described epoxy light color priming paint is dried under 25 ℃ of room temperatures, and the time is 24h, the 20min that perhaps under 20 ℃ normal temperature, dries in the air first, and 115 ℃ of lower oven dry, the time is 1h again; Described alkyd varnish is dried under 25 ℃ of room temperatures, and the time is 15h.

Described metal conditioner is that the weight ratio by lacquer base and Phosphating Solution is that 4:1 allocates and makes.

Embodiment 3:

The enamelling process of oil tank of transformer and parts thereof comprises the steps:

The first step, the allotment of painting first, with the metal conditioner Capacity Ratio be intermixture that 3 parts of ethanol add 1 part of butanols to be transferred to viscosity be 18S, epoxy light color priming paint is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 26S, alkyd varnish is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 22S;

Second step is after paint deployment is good, with 150 purpose sand net filtrations;

In the 3rd step, to general metal flat, adopt spraying method, during spraying, air pressure is the compressed air of 0.35MPa, and spraying is 28cm with the distance of spray-coating surface, spraying translational speed orientation is as the criterion with paint film, under spray, before one deck paint film, grind off particle with sand paper, and wipe floating ash, again japanning, to general pipe fitting, adopt the lacquer method of filling with, require to fill with completely when filling with lacquer and fully drip the remainder lacquer;

The 4th step was painted with after the lacquer, and described metal conditioner is dried under 25 ℃ of room temperatures, and the time is 0.5h; Described epoxy light color priming paint is dried under 25 ℃ of room temperatures, and the time is 24h, the 20min that perhaps under 20 ℃ normal temperature, dries in the air first, and 110 ℃ of lower oven dry, the time is 1h again; Described alkyd varnish is dried under 25 ℃ of room temperatures, and the time is 15h.

Described metal conditioner is that the weight ratio of and Phosphating Solution basic by lacquer is that the 4:1 allotment is made.

Claims (2)

1. the enamelling process of oil tank of transformer and parts thereof is characterized in that, comprises the steps:

The first step, the allotment of painting first, with the metal conditioner Capacity Ratio be intermixture that 3 parts of ethanol add 1 part of butanols to be transferred to viscosity be 17～20S, epoxy light color priming paint is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 24～28S, alkyd varnish is stirred evenly rear to be diluted to viscosity with dimethylbenzene be 18～25S;

Second step is after paint deployment is good, with 120～180 purpose sand net filtrations;

In the 3rd step, to general metal flat, adopt spraying method, during spraying, air pressure is the compressed air of 0.3～0.4MPa, and spraying is 25～30cm with the distance of spray-coating surface, spraying translational speed orientation is as the criterion with paint film, under spray, before one deck paint film, grind off particle with sand paper, and wipe floating ash, again japanning, to general pipe fitting, adopt the lacquer method of filling with, require to fill with completely when filling with lacquer and fully drip the remainder lacquer;

The 4th step was painted with after the lacquer, and described metal conditioner is dried under 25 ℃ of room temperatures, and the time is 0.5h; Described epoxy light color priming paint is dried under 25 ℃ of room temperatures, and the time is 24h, the 20min that perhaps under 20 ℃ normal temperature, dries in the air first, and 105 ℃～115 ℃ lower oven dry, the time is 1h again; Described alkyd varnish is dried under 25 ℃ of room temperatures, and the time is 15h.

2. the enamelling process of oil tank of transformer according to claim 1 and parts thereof is characterized in that, described metal conditioner is that the weight ratio of and Phosphating Solution basic by lacquer is that the 4:1 allotment is made.