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Semi-finished product of bimetal composite pipe and processing method

A technology of bimetallic composite pipes and semi-finished products, applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., which can solve the problems of unprovided operability

Active Publication Date: 2016-04-13
番禺珠江钢管(珠海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the manufacturing technology of bimetallic composite pipe includes various processes such as deflagration, spinning, drawing, and hydraulic diameter expansion of outsourcing molds. , effective solutions

Method used

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  • Semi-finished product of bimetal composite pipe and processing method
  • Semi-finished product of bimetal composite pipe and processing method

Examples

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Effect test

Embodiment Construction

[0020] Embodiments of the present invention are described in detail below:

[0021] Such as figure 1 , a bimetal composite pipe semi-finished product, including a metal outer pipe 130 and a metal inner pipe 140, the metal outer pipe 130 and the metal inner pipe 140 have a first port and a second port respectively, and the metal inner pipe 140 is sleeved on the metal In the outer tube 130, there is a gap area 102 between the inner wall of the metal outer tube 130 and the outer wall of the metal inner tube 140, an air vent 101 is arranged on the metal outer tube 130, and a first port 131 of the metal outer tube and the first port of the metal inner tube Between the ports 141, between the second port 132 of the metal outer tube and the second port 142 of the metal inner tube, a first sealing device 110 and a second sealing device 120 are respectively provided. Plug 210, the first plug 210 is provided with a conduit 211, the conduit 211 conducts the inner cavity of the metal inne...

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Abstract

The invention discloses a bimetal composite pipe semi-finished product and a machining method thereof. The bimetal composite pipe semi-finished product comprises an outer metal pipe and an inner metal pipe. The outer metal pipe and the inner metal pipe are respectively provided with a first end opening and a second end opening. The inner metal pipe is arranged in the outer metal pipe in a sleeved mode. A clearance area is arranged between the inner wall of the outer metal pipe and the outer wall of the inner metal pipe. A vent hole is formed in the outer metal pipe, a first sealing device and a second sealing device are arranged at the two end openings of the bimetal pipe respectively, a first plug is arranged at the first end opening of the inner metal pipe, a guide pipe is arranged in the first plug, an inner cavity of the inner metal pipe is communicated with the outside through the guide pipe, a second plug is arranged at the second end opening of the inner metal pipe, a hydraulic sensor and a vent pipe are arranged in the second plug, the hydraulic sensor penetrates through the second plug and extends into the cavity of the inner metal pipe, and the inner cavity of the inner metal pipe is communicated with the outside through the vent pipe. According to the bimetal composite pipe semi-finished product and the machining method thereof, sticking force magnitude between composite pipe layers can be controlled, and bimetal composite pipes meeting the standard requirement can be manufactured.

Description

technical field [0001] The invention relates to a bimetal composite pipe semi-finished product and a processing method. Background technique [0002] Bimetal composite pipe is a cost-effective product that has been widely used in energy, shipbuilding, chemical, petroleum and machinery fields. The bimetal composite pipe is processed by combining two kinds of metal pipes with different material properties and advantages. Its structure is divided into two parts: the metal outer pipe and the metal inner pipe. . Taking the bimetallic composite pipe used in sour oil and gas medium transportation pipelines as an example, the inner pipe is a corrosion-resistant alloy pipe, and the outer pipe is a high-strength line pipe. According to the T6623 standard, the minimum bonding force between the layers of the bimetallic pipe after composite processing should reach 0.2Mpa, and the control of the manufacturing process plays a very important role in this index. At present, the manufactur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/02B21D26/033
CPCB21D26/033F16L9/02
Inventor 陈昌黄克坚王利树黎剑峰莫敏玲苏章卓徐亮魏家乐仵炳祥许轩有
Owner 番禺珠江钢管(珠海)有限公司
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