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Anti-corrosion steel cylinder hot drawing technology

An anti-corrosion and heat-drawing technology, which is applied to other household appliances, household appliances, applications, etc., can solve problems such as gas cylinder leakage, safety hazards, and excessive wall thickness difference of containers, so as to avoid shortened service life and improve The effect of precision

Inactive Publication Date: 2017-02-22
CHENGDU FANXINJIA TECH
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  • Summary
  • Abstract
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  • Claims
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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
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below through specific examples.

[0021] A kind of anti-corrosion steel cylinder hot drawing process, is characterized in that, comprises the following steps:

[0022] Material selection: choose 316 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;

[0023] Mold fixing: select the hot drawing mold according to the cut circular plate, the mold has at least three mold positions with successively deeper depths, fix the mold on the clamping machine, and clean the mold;

[0024] Solution treatment: solution treatment is carried out on the cut circular plate, and the temperature is kept at 1850-2050°F for 30 minutes or more, and then cooled rapidly;

[0025] Grinding: Grinding the surface to remove the burrs;

[0026] Deep drawing: place the polished blank at the mold ...

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Abstract

The invention discloses an anti-corrosion steel cylinder hot drawing technology. The anti-corrosion steel cylinder hot drawing technology includes the steps of material selection, fixed mold solution treatment, polishing, drawing, closing, cleaning, lacquering and the like. A polished blank is subjected to first-time hot drawing, and then the step of solution treatment is conducted after the first-time hot drawing; afterwards, second-time hot drawing is performed, the blank is subjected to third-time hot drawing calibration after the second-time hot drawing; and pressure maintaining treatment is conducted while the third-time hot drawing calibration is carried out. By the adoption of repeated drawing and solution treatment, the overall quality of steel cylinders can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of gas cylinder processing, in particular to a hot drawing process for anti-corrosion 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 safety hazard. Contents of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D51/24B21D22/20B21D22/30
CPCB21D51/24B21D22/20B21D22/201B21D22/30
Inventor 高静
Owner CHENGDU FANXINJIA TECH
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