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Drawing process for steel cylinder made of 410 stainless steel

A steel cylinder and material technology, applied in the field of 410 steel cylinder deep drawing process, can solve the problems of safety hazards, gas cylinder leakage, excessive wall thickness difference of container bottles, etc., and achieve the effect of improving rolling precision and avoiding shortened service life

Inactive Publication Date: 2015-12-09
SINOMA SCI & TECH CHENGDU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be further described below through specific examples.

[0017] A 410 steel cylinder deep drawing process is characterized in that it comprises the following steps:

[0018] 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;

[0019] 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;

[0020] Grinding: Grinding the surface to remove the burrs;

[0021] 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 cold drawing is subjected to the third Hot...

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Abstract

The invention discloses a drawing process for a steel cylinder made of 410 stainless steel. The drawing process comprises steps of material selection, annealing, polishing, drawing, closing-up, washing and the like, wherein polished blank is subjected to first-time cold drawing, annealing is performed after first-time cold drawing, and then second-time cold drawing is performed; the blank subjected to second-time cold drawing is subjected to third-time hot drawing and shaping, and pressure-maintaining processing is performed during third-time hot drawing and shaping. The overall quality of the steel cylinder is guaranteed through multiple times of drawing and annealing processing.

Description

technical field [0001] The invention relates to the technical field of gas cylinder processing, in particular to a deep drawing process for steel cylinders made of 410 material. 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 safety hazard. Content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21D22/20
CPCB23P15/00B21D22/206
Inventor 冯存江李红梅王健
Owner SINOMA SCI & TECH CHENGDU CO LTD
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