Hot drawing technology of 430 material steel cylinder

A hot-drawing and steel cylinder technology, applied in the field of gas cylinder processing, can solve problems such as hidden dangers of safety, gas leakage of gas cylinders, excessive wall thickness difference of containers and bottles, etc., so as to achieve the effect of improving rolling precision and avoiding shortening of service life.

Inactive Publication Date: 2015-11-25
SINOMA SCI & TECH CHENGDU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 t

Method used

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Examples

Experimental program
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Example Embodiment

[0017] The present invention will be further illustrated by specific embodiments below.

[0018] A 430 material steel cylinder hot drawing process is characterized in that it comprises the following steps:

[0019] Material selection: choose 430 stainless iron plate as the blank, calculate the size according to the size of the cylinder, and then use the cutting machine to cut the blank into circular plates according to the calculated target size;

[0020] Fixed mold: Select the hot drawing mold according to the cut circular plate. The mold has at least three mold positions with successively deepened depths. Fix the mold on the clamping machine and clean the mold;

[0021] Annealing: Put the cut round plate in an annealing furnace for annealing treatment. The annealing furnace is kept at a temperature of 1095°C for 15 minutes, and then rapidly cooled;

[0022] Polishing: Polish the surface to clean the burrs;

[0023] Deep drawing: place the polished blank at the mold position with the lo...

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Abstract

The invention discloses a hot drawing technology of a 430 material steel cylinder. The hot drawing technology comprises the steps of material selecting, mold fixing, annealing, grinding, drawing, closing, cleaning and the like. The first-time hot drawing is carried out on a ground blank, the annealing step is carried out after the first-time hot drawing, and then the second-time hot drawing is carried out. The third-time hot drawing shaping is carried out on the blank on which the second-time hot drawing is carried out, and pressure maintaining processing is carried out when the third-time hot drawing shaping is carried out. The overall quality of the steel cylinder is guaranteed through multi-time drawing and annealing.

Description

technical field [0001] The invention relates to the technical field of gas cylinder processing, in particular to a thermal deep drawing process for steel cylinders made of 430 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. ...

Claims

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Application Information

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IPC IPC(8): B21D22/28
Inventor 冯存江李红梅王健
Owner SINOMA SCI & TECH CHENGDU CO LTD
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