JPH04121597U - Small high pressure gas cylinder - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to provide a small-sized high-pressure gas cylinder in which a coating is formed on the outer surface of the main body with a uniform thickness, densely, and firmly at room temperature. [Structure] Ultraviolet curable paint is uniformly applied to the outer surface of the main body 1 of a small high-pressure gas cylinder by spraying or painting. When this paint surface is irradiated with ultraviolet rays at room temperature, the paint hardens and the main body 1
A coating 2 is formed on the outer surface of.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a small high pressure gas cylinder.

0002

[Conventional technology]

Before filling the gas cylinder, perform surface treatment (plating, painting, etc.) on the small high-pressure gas cylinder. If this happens, the sealing plate will be affected by the surface treatment when welding, and welding will not be sufficient. Also, the surface When cleaning, a process must be taken to prevent cleaning liquid from entering the inside. Because of these problems, surface treatment is performed after gas filling.

0003

[Problem to be solved by the invention]

Cylinder filled with high-pressure gas cannot be dried at high temperature because it is dangerous. The forks are treated at room temperature, such as by drying at room temperature. In these methods, the material surface Because the coating is not sufficient, it should not be used when immersed in liquid or in high humidity areas. Not suitable for Furthermore, plating is very troublesome as it involves chromium pollution treatment problems, and For cylinders with threads, it is difficult to accurately determine the effective thread diameter. Ta. This invention does not require high-temperature treatment, and has a coating strength and anti-corrosion effect that is superior to baking paint. It is intended to provide a compact high-pressure gas cylinder with a coating that

0004

[Means to solve the problem]

In the small high-pressure gas cylinder according to the present invention, the paint applied to the outer surface of the main body is exposed to ultraviolet rays. It is characterized in that it hardens to form a film that adheres to the main body. A display portion can also be included in a part of this coating.

[0005]

[Effect]

The outer surface of the cylinder body is coated with ultraviolet curable paint, and this paint is hardened by ultraviolet light. and forms a coating that adheres to the outer surface of the cylinder body. This ultraviolet treatment is carried out at room temperature. The film formed has a coating strength greater than that of baked paint, and is easy to apply. It won't just peel off or get damaged. Therefore, to protect the cylinder body from external damage. Ru. Additionally, this coating has a rust-preventing effect, making it easier to use the cylinder immersed in liquid or in high-humidity environments. It is also possible to use

[0006] If part of this film contains the display area, it will have a stronger bond than conventional indestructible ink. Since it is in close contact with the outer surface of the main body, it is possible to maintain an unchanged display for many years. this table Even if the visible part is on the same level as the coating on other parts, it may be different from the coating on other parts. It may also be included as a separate layer on the top surface.

[0007]

【Example】

1 is a main body, and 2 is a coating formed on the outer surface of this main body 1. This coating 2 is purple. After applying external radiation curable paint to the outer surface of the main body 1, for example, by spraying or coating, it becomes purple at room temperature. It is hardened by irradiating it with external radiation and is in close contact with the main body 1.

[0008] A display portion 21 is included in a part of this coating 2. This display section 21 displays characters, symbols, or You can place any arbitrary object such as a figure on it. This display section 21 is displayed during painting, for example. By painting and curing the display part 21 at the same time, it is placed at the same level as the coating 2. Alternatively, the surface of the formed coating 2 may be further coated and cured, and another coating may be applied. They may also be arranged in layers.

[0009]

[Effect of the idea]

According to the present invention, it is possible to form a dense and strong coating on the outer surface of the main body at room temperature. It does not peel off or get damaged, has reliable rust prevention, and can be freely determined in film thickness. Since it is smooth and uniform, there are various effects such as no need to rethread the neck.

[Brief explanation of drawings]

FIG. 1 is a half-cut side view of a small high-pressure gas cylinder.

FIG. 2 is a partially cutaway side view of another embodiment of the small-sized high-pressure gas cylinder.

[Explanation of symbols]

1 Main body 2 Coating 21 Display section

Claims (2)

[Scope of utility model registration request] 1. A small high-pressure gas cylinder characterized in that a coating applied to the outer surface of the main body is cured by ultraviolet light to form a film that adheres to the main body. 2. The small-sized high-pressure gas cylinder according to claim 1, wherein a portion of the coating includes a display portion.