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Variable-wall metal tube and its making process

A metal cylinder and cylinder bottom technology, which is applied to other household appliances, household appliances, applications, etc., can solve the problems of potential safety hazards, difficulty in achieving strength, etc., and achieve the effect of novel and unique structure, weight reduction, and good quality

Inactive Publication Date: 2003-03-19
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the sudden change of wall thickness and multiple welds in the metal cylinder of this structure, it is difficult to meet the requirements of strength and pressure resistance, and there are potential safety hazards.

Method used

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  • Variable-wall metal tube and its making process
  • Variable-wall metal tube and its making process
  • Variable-wall metal tube and its making process

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] The present invention is further described as follows in conjunction with accompanying drawings.

[0025] Use Ti-451 alloy plate to make equal wall thickness cylinder 1; evenly coat molybdenum disulfide (or graphite milk) lubricant on the inner surface of equal wall thickness cylinder and the surface of spinning die 5; then coat the inner surface with lubricant The cylinder body with equal wall thickness is set on the spinning die, and the thrust is applied by moving the tail top die 6 to the right, so that the cylinder body with equal wall thickness is pressed against the spinning die; the spinning machine drives the tail top die, spinning die, Cylinders with equal wall thickness rotate synchronously;

[0026] Turn on the heating device 8 to make the equal-wall thickness cylinder reach the deformation temperature, and adjust the power of the heating device at any time during the deformation process to control the temperature fluctuation range of the deformation part of...

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Abstract

The present invention relates to one kind of variable wall thickness metal barrel and its making process. The variable wall thickness metal barrel is suitable for use in aviation, aerospace, weapon, chemical, petroleum and other fields. The variable wall thickness metal barrel has thick wall bottom part, middle transition part and thin wall upper part connected successively to form one integral. It is made with equal wall thickness tube and through rotary extrusion. The product of the present invention has novel structure, high surface quality, high size accuracy and reasonable making process.

Description

technical field [0001] The invention relates to a variable-wall metal cylinder and a manufacturing method thereof, which are suitable for the manufacture of variable-wall metal cylinders in the fields of aviation, aerospace, weapons, chemical industry, petroleum and the like. Background technique [0002] Metal cylinders have been widely used in aviation, aerospace, weapons, chemical, petroleum and other industrial sectors because of their excellent mechanical properties and pressure resistance. Due to the limitation of the manufacturing process, it is currently limited to the manufacture of metal cylinders with equal wall thickness and small ratio of depth and diameter. If it is necessary to process a metal cylinder with a relatively large depth and diameter or a variable wall thickness, the metal head is generally welded with the roll-welded metal pipe body, or the metal head is welded with the seamless metal pipe body. Due to the sudden change in wall thickness and multi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D51/18
Inventor 杨英丽赵彬李玥璐林桥于振涛张鹏省段文森
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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