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Gas cylinder dished head shaping technique

A disc-shaped head and forming process technology, applied in the direction of manufacturing tools, metal processing equipment, gas flame welding equipment, etc., can solve the problem that the volume is not optimized, achieve good economy, reduce length, and low overall manufacturing cost Effect

Active Publication Date: 2010-06-02
SINOMA SCI & TECH CHENGDU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the composite gas cylinder with a diameter of 338mm and a length of 1020mm on the market has a volume of 68L. The head structure of this gas cylinder is hemispherical, and the volume has not been optimized to the maximum

Method used

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  • Gas cylinder dished head shaping technique
  • Gas cylinder dished head shaping technique
  • Gas cylinder dished head shaping technique

Examples

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Embodiment Construction

[0029] The invention discloses a manufacturing process of a wound gas cylinder steel liner with a disc-shaped head. Such as figure 2 As shown, the steel liner of the wound gas cylinder includes a liner body 1 with dish-shaped heads 4 at both ends, and an opening 3 is provided on one of the dish-shaped heads. The disc-shaped head is used to replace the traditional hemispherical head to reduce the length of the head and increase the volume of the cylinder with the same length, so that the volume of the cylinder can be increased to 70L, and the volume of the cylinder with the same diameter can be increased by 3%. Wherein, the manufacturing process includes a bottom closing process and a closing process. The so-called bottom closing process and closing process are the molding processes of the two dished heads. The difference is that the closing process refers to the forming process of the dished head with an opening, and the bottoming process refers to the forming process of the...

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Abstract

The invention provides a molding technique of a steel gas cylinder liner dished head, which adopts a multi-track multi-times roller spinning technique, wherein a semi-spherical structure head is firstly a molded; then a dished structure is formed by spinning process through the progressive approach method; the approaching amount and speed of each track in the processing is the key to the control.During bottom sealing, the adoption of the technique of twice-blowing and twice-combining reduces the bottom defects and make the gas cylinder safer and more reliable.

Description

technical field [0001] The invention relates to a molding process of a disc-shaped head wrapped around a steel liner of a gas cylinder, belonging to the field of mechanical manufacturing. Background technique [0002] The shortage of oil and the continuous deterioration of the environment have led countries to actively develop natural gas vehicles. However, due to the low energy density of natural gas, natural gas vehicles carry less fuel and generally have a shorter driving distance than gasoline vehicles. Therefore, we need to study The volume increase technology of the lower gas cylinder solves the problem of short driving distance compared with gasoline fuel, and better reflects the superiority of natural gas vehicles. [0003] Because the gas cylinder is installed on the trunk of the taxi, the installation space in the length direction is limited, so the gas cylinder with the same length and large volume has a large filling capacity, which can improve the driving distan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B21D22/14B23K7/00
Inventor 米宽武孟献宫丽丽
Owner SINOMA SCI & TECH CHENGDU CO LTD
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