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Processing method for varying wall thick taper metal pipe

A processing method and metal pipe technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of equal-wall-thickness conical metal pipes that cannot meet the demand, difficult to reduce production costs, high center of gravity, etc., and improve safety , Low unit cost and low center of gravity

Inactive Publication Date: 2007-02-07
石家庄轴承设备有限公司
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Problems solved by technology

However, the conical metal pipes currently produced are all of equal wall thickness due to the limitation of processing methods, and there are defects such as difficulty in reducing production costs and instability caused by a high center of gravity, which are difficult to overcome
Especially with the gradual rise of steel prices, equal-wall conical metal pipes can no longer meet the needs of the market

Method used

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  • Processing method for varying wall thick taper metal pipe

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: the accompanying drawings simply represent the flow of a variable-wall-thickness conical metal pipe processing production line. A round pipe 1 with an outer diameter of 165 mm and a wall thickness of 7 mm is clamped on a drawing device 5 driven by a linear oil cylinder, and under the action of its pulling force, the workpiece does not rotate, and moves from 0 m / min to Accelerate at 5m / min. After being heated to 800°C by the intermediate frequency heating device 2, the three spinning wheels on the spinning mechanism 3 rotate along the circular tube 1 with equal wall thickness and feed inward at a constant speed of 25.5mm each. Become a conical metal pipe with variable wall thickness 4. The processed variable-wall-thickness conical metal pipe has a length of 8000 mm, a large end with a diameter of 165 mm and a wall thickness of 7 mm, and ...

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Abstract

The invention relates to a method for processing variable-wall taper metal tube, wherein it comprises: the constant-wall round tube via heater and rotator is clamped inside the drawer; said round tube, via drawing force of drawer, will move with accelerated speed relative to the heart and rotator; the round tube via heated by said heater for several times, and rotated via the rotator, will uniformly feed and rotate and compress, to obtain the variable-wall taper metal tube. The invention has wider application.

Description

technical field [0001] The invention relates to a processing method for conical metal pipes, in particular to a processing method for variable-wall-thickness conical metal pipes. Background technique [0002] With the rapid development of highway transportation and other industries, the demand for conical lighting poles and flagpoles of various metal materials is increasing, so higher requirements are put forward for the inner quality of conical metal tubes. However, the conical metal pipes currently produced are all of equal wall thickness due to the limitation of processing methods, and there are defects such as difficulty in reducing production costs and instability caused by a high center of gravity, which are difficult to overcome. Especially with the gradual rise of steel prices, equal-wall conical metal pipes can no longer meet the needs of the market. Contents of the invention [0003] The invention overcomes the deficiencies in the prior art and provides a proces...

Claims

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Application Information

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IPC IPC(8): B21D22/14B21D22/18B21D37/16
Inventor 纪山孙连友董晖何庭珍
Owner 石家庄轴承设备有限公司
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