Method for manufacturing titanium-and-titanium alloy high-pressure gas cylinder

A high-pressure gas cylinder and a manufacturing method technology, which are applied in the manufacture of container structures, pressure vessels, ship construction details, etc., can solve problems such as low heating temperature, eliminate wrinkles, improve impact performance and tensile performance, and reduce production costs. Effect

Pending Publication Date: 2019-11-19
BAOJI FANMEI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the closing of thin-walled pipes, although the spinning force used by the spinning m

Method used

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  • Method for manufacturing titanium-and-titanium alloy high-pressure gas cylinder
  • Method for manufacturing titanium-and-titanium alloy high-pressure gas cylinder
  • Method for manufacturing titanium-and-titanium alloy high-pressure gas cylinder

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Embodiment 1

[0033] The embodiment of the present invention is based on TC4 alloy, provides a kind of manufacturing method of the TC4 titanium alloy high-pressure gas cylinder of three-stage welding, and this manufacturing method comprises the following steps:

[0034] Step 1: Process the TC4 alloy bar into the first semi-finished head section by die forging process, and ensure that the structure and performance of the first semi-finished head section meet the design requirements, and then adopt the method of mechanical processing to process the first semi-finished product The inner and outer surfaces of the head section are processed according to the process requirements to obtain the second semi-finished head section with higher dimensional accuracy and lower surface roughness; the second semi-finished head section is composed of a head and a straight pipe.

[0035] Step 2: Prepare a pipe section by forging process, and process the inner and outer surfaces of the pipe section by mechanica...

Embodiment 2

[0054] The embodiment of the present invention is based on TC4 alloy, provides a kind of manufacturing method of the finished product of TC4 titanium alloy high-pressure gas cylinder of a kind of two-stage welding, and this manufacturing method comprises the following steps:

[0055] Step 1: Process the TC4 alloy bar into the first semi-finished head section by die forging process, and ensure that the structure and performance of the first semi-finished head section meet the design requirements, and then adopt the method of mechanical processing to process the first semi-finished product The inner and outer surfaces of the head section are processed to obtain a second semi-finished head section with higher dimensional accuracy and lower surface roughness; the second semi-finished head section is composed of a head and a straight pipe.

[0056] Step 2: According to the method of step 1, prepare two second semi-finished head sections, open the straight pipe ends of the two semi-f...

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Abstract

The invention discloses a method for manufacturing a titanium-and-titanium alloy high-pressure gas cylinder. The method for manufacturing the titanium-and-titanium alloy high-pressure gas cylinder comprises the steps that first head sections are machined by a die forging process, and then a pipe-outlet section is prepared by a forging process, and the two head sections and the pipe-outlet sectionare welded; and then, a weld joint part is heated and upset, and a weld joint structure is fundamentally changed to meet the use requirements. The titanium-and-titanium alloy high-pressure gas cylinder has no wrinkles on the inner surface of the gas cylinder and has low roughness, and fatigue, impact and tensile properties all meet the requirements for use.

Description

technical field [0001] The invention belongs to the field of manufacturing high-pressure containers of titanium and titanium alloys, and in particular relates to a method for manufacturing high-pressure gas cylinders of titanium and titanium alloys. Background technique [0002] There are many high-pressure gas cylinders in the submarine, which store high-pressure air, which is a necessary equipment for the submarine to float. In the past, high-pressure gas cylinders were made of steel. Due to their light specific gravity, high specific strength, and superior corrosion resistance, titanium and titanium alloys are increasingly used in marine engineering. [0003] At present, titanium and titanium alloy high-pressure gas cylinders are manufactured by using thick-walled pipes, which are closed by spinning, and then machined and formed. Common titanium alloy gas cylinders have a diameter of 200-500mm and a wall thickness of 5-35mm. The difficulty of the traditional process lie...

Claims

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Application Information

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IPC IPC(8): B23P15/00F17C1/00
CPCB23P15/00F17C1/00F17C2209/00F17C2209/221
Inventor 胡宗式佟大新
Owner BAOJI FANMEI MATERIAL TECH
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