Steel-aluminum composite pipe and manufacturing method thereof

A steel-aluminum composite and manufacturing method technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipes, etc., can solve the problems of poor bonding strength, low matching accuracy, low production efficiency, etc., and achieve high production efficiency and improve composite Strength, good use effect

Pending Publication Date: 2020-07-10
SHANGHAI TIAN YANG STEEL TUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a steel-aluminum composite pipe and its manufacturing method, which solves the poor bonding strength of the existing steel-aluminum composite steel pipe and the combination of carbon steel and aluminum material in a solid-liquid phase. Problems of low precision and low production efficiency

Method used

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  • Steel-aluminum composite pipe and manufacturing method thereof
  • Steel-aluminum composite pipe and manufacturing method thereof
  • Steel-aluminum composite pipe and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] to combine figure 1 , the present invention is a steel-aluminum composite pipe, which is a bimetallic composite pipe, comprising a seamless steel pipe 1 and an aluminum pipe 2 poured outside the seamless steel pipe 1 . A threaded hole 3 penetrating through the side wall of the seamless steel pipe 1 is provided on the pipe wall of the seamless steel pipe 1 . The axial direction of the threaded hole 3 is arranged along the radial direction of the seamless steel pipe 1 . Threads are provided on the side walls of the threaded holes 3 . The inner wall of the aluminum tube 2 is filled with the threaded hole 3 . A screw 4 is welded to the outer wall of the seamless steel pipe 1 . Screw teeth are provided on the outer surface of the screw 4 . The screw 4 penetrates into the aluminum tube 2 . In this embodiment, there is no specific limitation on the number and positions of the threaded holes 3 and the screws 4 .

[0032] to combine figure 2 and image 3 , the manufactu...

Embodiment 2

[0040] The difference between this embodiment and Embodiment 1 is mainly reflected in the optimization of the seamless steel pipe 1 .

[0041] The invention is a steel-aluminum composite pipe, which is a bimetallic composite pipe, comprising a seamless steel pipe 1 and an aluminum pipe 2 poured outside the seamless steel pipe 1 . A threaded hole 3 penetrating through the side wall of the seamless steel pipe 1 is provided on the pipe wall of the seamless steel pipe 1 . The axial direction of the threaded hole 3 is arranged along the radial direction of the seamless steel pipe 1 . Threads are provided on the side walls of the threaded holes 3 . The inner wall of the aluminum tube 2 is filled with the threaded hole 3 . A screw 4 is welded to the outer wall of the seamless steel pipe 1 . Screw teeth are provided on the outer surface of the screw 4 . The screw 4 penetrates into the aluminum tube 2 . Element content in carbon steel: wC≤0.255%, wP≤0.035%, wS≤0.035%. The steel o...

Embodiment 3

[0049] This embodiment is an optimization scheme based on Embodiment 1, and is mainly optimized for the threaded hole 3 and the screw 4 .

[0050] combine figure 1 , the present invention is a steel-aluminum composite pipe, which is a bimetallic composite pipe, comprising a seamless steel pipe 1 and an aluminum pipe 2 poured outside the seamless steel pipe 1 . A threaded hole 3 penetrating through the side wall of the seamless steel pipe 1 is provided on the pipe wall of the seamless steel pipe 1 . The axial direction of the threaded hole 3 is arranged along the radial direction of the seamless steel pipe 1 . Threads are provided on the side walls of the threaded holes 3 . The inner wall of the aluminum tube 2 is filled with the threaded hole 3 . A screw 4 is welded to the outer wall of the seamless steel pipe 1 . Screw teeth are provided on the outer surface of the screw 4 . The screw 4 penetrates into the aluminum tube 2 . In this embodiment, there is no specific limit...

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Abstract

The invention relates to the field of bimetal composite pipes, and discloses a steel-aluminum composite pipe and a manufacturing method thereof. The steel-aluminum composite pipe comprises a seamlesssteel pipe body and an aluminum pipe body poured outside the seamless steel pipe body. Threaded holes are formed in the pipe wall of the seamless steel pipe body. Threads are arranged on the side walls of the threaded holes. The inner wall of the aluminum pipe body is filled with threaded holes. Screws are welded to the outer wall of the seamless steel pipe body. Threads are arranged on the outersurfaces of the screws. The screws penetrate into the aluminum pipe body. According to the steel-aluminum composite pipe and the manufacturing method thereof, solid-liquid phase compounding is carriedout on a liquid aluminum material and carbon steel, and the liquid aluminum material is compounded to the outside of the seamless steel pipe body by pouring, so that the two metal materials achieve ametallurgical compounding effect. The threaded holes are formed in the seamless steel pipe body, the screws are welded to the seamless steel pipe body, and forming force is generated in the casting process of the two metal materials. When the aluminum material is in a cooling stage, the aluminum material is reinforced, the two metal materials are promoted to form metallurgical bonding, the compounding strength of the steel-aluminum composite pipe is improved, and the production efficiency is high.

Description

technical field [0001] The invention relates to the field of composite pipes, in particular to a steel-aluminum composite pipe and a manufacturing method thereof. Background technique [0002] In recent years, with the advancement of science and technology and the rapid development of the national economy, my country's basic metal materials are facing three major problems, such as serious overcapacity in overall production capacity, irrational product structure, and inability to fully realize self-sufficiency in high-end application fields. Pure capacity reduction and resource optimization The reorganization is only a temporary relief and cannot fundamentally change the status quo, and in the process will bring huge employment pressure to the society. Facing the two major constraints of equipment and technology blockade, it is difficult for traditional industries to transform into the ranks of special high-end materials. At the same time, ordinary basic materials are difficul...

Claims

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Application Information

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IPC IPC(8): F16L9/02B22D19/16C22C38/00B23P15/00
CPCB22D19/16B23P15/00C22C38/002C22C38/004F16L9/02
Inventor 何建忠
Owner SHANGHAI TIAN YANG STEEL TUBE
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