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PRO gas steel cylinder surface colored paint spraying process

A surface spraying and color painting technology, applied in the field of gas cylinders, can solve problems such as overall shedding, and achieve the effects of enhancing adhesion, overcoming large-area overall shedding, and improving paint firmness

Pending Publication Date: 2022-03-01
衢州永安新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can improve the adhesion of the paint to a certain extent, it also brings a new problem, that is, once the paint falls off, a large area of ​​the paint will fall off as a whole

Method used

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  • PRO gas steel cylinder surface colored paint spraying process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A PRO gas cylinder surface color paint spraying process, comprising the following steps:

[0029] (1) Clean the surface of the PRO gas cylinder and then dry it; if it is a newly produced gas cylinder, it can be washed directly with clean water; if it is a used gas cylinder, especially the gas cylinder used to hold liquefied petroleum gas, It needs to be soaked and cleaned with caustic lye, and then rinsed with water; the drying temperature is not limited, depending on the drying equipment, it can also be dried naturally.

[0030] (2) Spray the bottom liquid on the surface of the dried PRO gas cylinder, and the temperature of the bottom liquid is controlled at 30°C to 32°C; the bottom liquid is a water-based polyurethane resin solution, which is a commercially available product; the spraying amount of the bottom liquid is controlled at 80g / m 2 ;

[0031] (3) Before the bottom liquid is dried, spray 150 g / m of calcium carbonate powder with a particle size of 0.015mm to...

Embodiment 2

[0034] A PRO gas cylinder surface color paint spraying process, comprising the following steps:

[0035] (1) Use clean water to clean the surface of the PRO gas cylinder and then dry it;

[0036] (2) Spray the bottom liquid on the surface of the dried PRO gas cylinder, and the temperature of the bottom liquid is controlled at 35°C to 40°C; the bottom liquid is a water-based polyurethane resin solution, which is a commercially available product; the spraying amount of the bottom liquid is controlled at 110g / m 2 ;

[0037] (3) Before the bottom liquid is dried, spray 200g / m of calcium carbonate powder with a particle size of 0.015mm to 0.025mm on the bottom liquid 2 ;Spray powder immediately after spraying primer;

[0038] (4) After spraying the powder, spray the corresponding color paint.

Embodiment 3

[0040] A PRO gas cylinder surface color paint spraying process, comprising the following steps:

[0041] (1) Use lye (caustic soda solution) to clean the surface of the PRO gas cylinder and then dry it;

[0042] (2) Spray the bottom liquid on the surface of the dried PRO gas cylinder, and the temperature of the bottom liquid is controlled at 40°C to 45°C; the bottom liquid is a water-based polyurethane resin solution, using a commercially available product; the spraying amount of the bottom liquid is controlled at 100g / m 2 ;

[0043] (3) Before the bottom liquid is dried, spray 220g / m of calcium carbonate powder with a particle size of 0.025mm to 0.030mm on the bottom liquid 2 ;Spray powder immediately after spraying primer;

[0044] (4) Spray the corresponding color paint for the first time after powder spraying;

[0045] (5) Spray calcium carbonate powder with a particle size of 0.015mm to 0.020mm on the painted paint again, and also spray powder before the painted pain...

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Abstract

The invention belongs to the technical field of gas steel cylinders, and relates to a PRO gas steel cylinder surface colored paint spraying process which comprises the following steps: (1) cleaning and drying the surface of a PRO gas steel cylinder; (2) spraying a base solution on the surface of the dried PRO gas steel cylinder, and controlling the temperature of the base solution at 30-45 DEG C; the base solution is a polyurethane resin solution; (3) spraying powder on the base solution before the base solution is dried; and (4) color paint is sprayed after powder spraying. According to the method, the base solution, the powder and the colored paint are sequentially sprayed on the surface of the gas steel cylinder, so that the adhesive force of the colored paint is enhanced, particularly the paint firmness of the gas steel cylinder in an oil environment is improved, and the defect that the gas steel cylinder integrally falls off in a large area is overcome.

Description

technical field [0001] The invention belongs to the technical field of gas cylinders, and relates to a process for spraying color paint on the surface of PRO gas cylinders. Background technique [0002] PRO gas cylinders are steel cylinders for storing high-pressure oxygen, coal gas, petroleum liquefied petroleum gas, etc., which are made of steel billets by stamping and stretching or made of seamless steel pipes and closed by hot spinning. The material of the bottle body is killed steel smelted by basic open hearth furnace, electric furnace or oxygen blowing basic converter. [0003] At present, after the gas cylinder is manufactured, the gas cylinder is protected from corrosion by spraying paint on the outer surface of the cylinder. The existing painting method is to directly spray paint on the surface of the bottle body. After the antirust paint dries, a dense paint film will be formed to prevent the invasion of corrosive substances, thereby achieving the antirust effect...

Claims

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Application Information

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IPC IPC(8): B05D5/06B05D7/14B05D7/16B05D1/36B05D1/02B05D1/12
CPCB05D5/06B05D7/14B05D7/16B05D7/587B05D1/36B05D1/02B05D1/12
Inventor 马后英
Owner 衢州永安新能源科技有限公司
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