Seamless steel tube for screw spanner

A technology of seamless steel pipes and screw wrenches, which is applied in the direction of slender elements, building elements, etc., to achieve the effect of improving material utilization, saving metal, and increasing stability

Inactive Publication Date: 2013-05-22
JIANGSU HUACHENG IND PIPES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Because the circular cross-section seamless steel pipe is more uniform in bearing internal or external radial pressure, it is widely used, but in many cases, the circular cross-section seamless steel pipe cannot meet the specific use requirements of structural components or mechanical components, such as The screw wrench requires high strength, strong bending resistance, excellent corrosion resistance, light structure and other conditions, and also needs to have a complex shape and structure, so it cannot be made with ordinary circular cross-section seamless steel pipes

Method used

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  • Seamless steel tube for screw spanner

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Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, a seamless steel pipe for screw wrenches, the pipe body section 1 is a special-shaped structure, the outer wall 2 is a regular hexagonal structure, and there is a transition arc between adjacent two sides, and the inner wall 3 is a circular structure. The pipe body is formed by drawing. The material of the pipe body is No. 45 steel. The pipe body is subjected to normalizing heat treatment.

[0017] Because the seamless steel pipe for the screw wrench adopts the structure of the outer hexagon and the inner circular hole, it is convenient to connect and use with other parts, and the outer hexagon increases the stability of the connection.

[0018] Since the seamless steel pipe for the screw wrench is drawn and formed, no additional cutting process is required, metal can be saved, material utilization can be i...

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PUM

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Abstract

The invention discloses a seamless steel tube for screw spanners. The section of the seamless steel tube is of a special-shaped structure, and the outer wall thereof is of a regular hexagonal structure. Transitional arcs are arranged between the two adjacent edges, and the inner wall of the seamless steel tube is of circular structure. The seamless steel tube made of steel No. 45 is formed by pulling and is subjected to normalizing thermal treatment. The seamless steel tube for screw spanners is low in production cost and high in strength.

Description

technical field [0001] The invention relates to a seamless steel pipe, in particular to a seamless steel pipe for a screw wrench. Background technique [0002] The production of seamless steel pipes is one of the pillar industries of the country. With the development of the national economy, the demand for seamless steel pipes is increasing year by year. Seamless steel pipes are widely used in the manufacture of structural components such as automobiles, trains, aircraft, ships, and space launchers, as well as mechanical parts such as agriculture, mining, engineering, electrical engineering, textiles, and military industries. Seamless steel pipes are widely used in both civil and military fields. The applications are very extensive. [0003] Because the circular cross-section seamless steel pipe is more uniform in bearing internal or external radial pressure, it is widely used, but in many cases, the circular cross-section seamless steel pipe cannot meet the specific use re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16S3/00
Inventor 周金苗严加彬韩波
Owner JIANGSU HUACHENG IND PIPES
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