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High-hardness pneumatic vehicle high-pressure steel cylinder production process

A technology of pneumatic vehicles and high-pressure steel cylinders, which is applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve problems such as potential safety hazards, excessive wall thickness difference of containers, and gas cylinder leakage, so as to improve precision and avoid using The effect of shortening the life and improving the hardness and strength

Inactive Publication Date: 2017-01-04
成都科创诺商贸有限公司
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

Poor manufacturing process will cause the wall thickness difference of the container bottle to be too large, and the quality difference of the whole gas cylinder is very large. Similarly, if the temperature control is not good when the bottom is closed by hot spinning in the mass production process, the bottom of the gas cylinder will be damaged. Air leakage, leaving a major safety hazard

Method used

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Examples

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Embodiment Construction

[0019] The present invention will be further described below through specific examples.

[0020] A high-hardness pneumatic automobile high-pressure steel cylinder production process is characterized in that it comprises the following steps:

[0021] Material selection: choose 410 stainless steel plate as the blank, calculate the size according to the size of the steel cylinder, and then use a cutting machine to cut the blank into circular plates according to the calculated target size;

[0022] Annealing: Place the cut circular plate in an annealing furnace for annealing treatment. The annealing furnace maintains a temperature of 800~940°C for 15 minutes, and then cools rapidly;

[0023] Grinding: Grinding the surface to remove the burrs;

[0024] Deep drawing: The polished blank is subjected to the first cold drawing, and then the above annealing step is carried out after the first cold drawing, and then the second cold drawing is carried out, and the blank after the second ...

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Abstract

The invention discloses a high-hardness pneumatic vehicle high-pressure steel cylinder production process. The production process comprises such steps as material selection, annealing, polishing, deep drawing, opening closing, cleaning and painting; the first time of cold drawing is performed for the polished blank; the annealing step is performed after the first time of cold drawing; then, the second time of cold drawing is performed; after the second time of cold drawing, the third time of thermal drawing shape correction is performed for the blank; and the pressure keeping treatment is performed in the third time of thermal drawing shape correction. The overall quality of steel cylinders is guaranteed by multiple times of drawing and annealing treatments.

Description

technical field [0001] The invention relates to the technical field of gas cylinder processing, in particular to a production process of high-hardness pneumatic automobile high-pressure steel cylinders. Background technique [0002] As a clean energy source, natural gas is widely used in various fields, and plays an important role in both life and production. Correspondingly, the development of pressure vessels filled with compressed natural gas is particularly necessary. Due to the flammable and explosive characteristics of natural gas, the requirements for the airtightness of the containers are very high. Poor manufacturing process will cause the wall thickness difference of the container bottle to be too large, and the quality difference of the whole gas cylinder is very large. Similarly, if the temperature control is not good when the bottom is closed by hot spinning in the mass production process, the bottom of the gas cylinder will be damaged. Leakage, leaving a major...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D51/24B21D22/20B21D37/16
CPCB21D51/24B21D22/20B21D37/16
Inventor 张淞张光成
Owner 成都科创诺商贸有限公司
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