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A solid-liquid compound casting and rolling machine for double-metal layered composite pipe

A bimetallic layered, solid-liquid composite technology, applied in the field of bimetallic layered composite materials, achieves the effects of short process, improved microstructure performance, and guaranteed stability

Active Publication Date: 2017-06-16
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a kind of production equipment of bimetallic layered composite pipe, which solves the hole layout, flow distribution device, complex hole type side seal and adjustment mechanism, etc. in the production of bimetallic composite pipe by using solid-liquid composite technology. Equipment integration technical issues

Method used

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  • A solid-liquid compound casting and rolling machine for double-metal layered composite pipe
  • A solid-liquid compound casting and rolling machine for double-metal layered composite pipe
  • A solid-liquid compound casting and rolling machine for double-metal layered composite pipe

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Effect test

Embodiment 1

[0053] Taking the steel / aluminum bimetal layered composite pipe as an example, the equipment of the present invention is used to process and produce the steel / aluminum layered composite pipe, and the outer diameter is selected to be The Q235 seamless steel pipe with a wall thickness of 4mm is used as the metal pipe to be clad 4, and industrial pure aluminum is used as the cladding material to produce a steel / aluminum composite pipe with a cladding metal thickness of 2.5mm.

[0054] 1. First, the outer surface of the Q235 metal pipe 4 to be compounded is treated to remove scale and degrease, so as to make the surface clean;

[0055] 2. Melt the aluminum ingot, heat it to 700°C and keep it warm;

[0056] 3. Use the lifting adjustment device 2 to adjust the pouring unit 3 to a suitable height, turn on the heating device 304, preheat the annular flow distributor 303 to 250°C, set the casting and rolling speed to 1.2m / min, turn on the casting and rolling machine and enter idling s...

Embodiment 2

[0060] Taking the copper / aluminum bimetal layered composite pipe as an example, adopt the equipment of the present invention to process and produce the copper / aluminum layered composite pipe, and select the outer diameter The industrial red copper pipe with a wall thickness of 2mm is used as the metal pipe to be clad 4, and the industrial pure aluminum is used as the cladding material to produce a copper / aluminum composite pipe with a cladding metal thickness of 2mm.

[0061] 1. First, the outer surface of the copper pipe 4 to be composited is treated to remove iron scale and degrease, so as to make the surface clean;

[0062] 2. Melt the aluminum ingot, heat it to 700°C and keep it warm;

[0063] 3. Use the lifting adjustment device 2 to adjust the pouring unit 3 to a suitable height, turn on the heating device 304, preheat the annular flow distributor 303 to 250°C, set the casting and rolling speed to 1.2m / min, turn on the casting and rolling machine and enter idling standb...

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Abstract

The invention provides a solid-liquid composite cast rolling machine for a dual-metal-layer composite pipe. The machine comprises a machine frame, a pouring unit used for aluminum liquid pouring, a pressing-down and balance adjusting device and a cast roller unit, and further comprises an annular flow distribution device and a guide support. The annular flow distribution device is covered with a heating device used for keeping metal liquid in a molten state. The cast roller unit comprises a first cast roller and a second cast roller which jointly form a circular hole, and a pipe base material to be composited enters the circular hole. The solid-liquid cast rolling forming technology is adopted for producing the dual-metal-layer composite pipe, and metallurgical bonding of dual metal interfaces can be achieved by combining the rapid solidification technology with the rolling technology. Compared with the prior art, cladding metal is poured in a liquid state, the problem that the requirements of traditional solid-solid composite technologies such as drawing composite, expanded connection composite and spinning composite for blank size and shape precision are high is solved, and the solid-liquid composite cast rolling machine has the beneficial effects of remarkably saving energy, being high in efficiency and short in process, and the like.

Description

technical field [0001] The invention relates to the field of bimetallic layered composite materials, in particular to production equipment for bimetallic layered composite pipes. Background technique [0002] The bimetallic composite pipe is composed of two different metal pipes, the inner layer and the outer layer, and is a structural and functional material with comprehensive properties such as stiffness, strength, corrosion resistance, and wear resistance. The pipe layers are tightly combined through various deformation and connection techniques. When external forces are applied, the inner and outer pipes are deformed at the same time and the interface is not separated. In recent years, with the rapid development of the national economy, my country has put forward higher requirements for pipeline transportation technology in petrochemical, marine development, and nuclear energy utilization. Traditional single metal pipes are difficult to adapt to complex and extreme envir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/16B22D11/14
Inventor 黄华贵季策董伊康燕猛杜凤山
Owner YANSHAN UNIV
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