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Hot drawing technology for 410# steel cylinders

A heat-drawing and steel cylinder technology, which is applied in the field of gas cylinder processing, can solve problems such as gas cylinder leakage, potential safety hazards, excessive wall thickness difference of containers, etc., and achieve the effect of avoiding shortened service life and improving rolling precision

Inactive Publication Date: 2015-11-25
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
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below through specific examples.

[0018] A 410 material steel cylinder hot drawing process is characterized in that it comprises the following steps:

[0019] 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;

[0020] 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;

[0021] 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;

[0022] Grinding: Grinding the surface to remove the burrs;

[0023] Deep drawing: place the polished blank at the...

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Abstract

The invention discloses a hot drawing technology for 410# steel cylinders. The hot drawing technology comprises the steps of material selection, die fixing, annealing, polishing, drawing, closing-in, cleaning and the like; a polished blank is subjected to primary hot drawing, annealing, secondary hot drawing and tertiary hot drawing sizing in sequence, and pressure is maintained in the third hot drawing sizing process. The overall quality of the steel cylinders is ensured through repeated drawing and annealing treatment.

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 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. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21D22/20
CPCB23P15/00B21D22/20B21D22/201B21D22/208
Inventor 冯存江李红梅王健
Owner SINOMA SCI & TECH CHENGDU CO LTD
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