Supercharge Your Innovation With Domain-Expert AI Agents!

Multilayer high heat load composite pipe of fusion reactor and manufacturing method thereof

A multi-layer composite, manufacturing method technology, applied in manufacturing tools, welding equipment, metal processing equipment and other directions, can solve the performance impact, can not guarantee the safe and stable operation of fusion device heat exchange components, etc., to achieve the effect of saving costs

Active Publication Date: 2020-03-10
SOUTHWESTERN INST OF PHYSICS
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After testing, it was found that the traditional three-layer structure of stainless steel, copper alloy and tungsten alloy adopts the vacuum brazing process route of stainless steel & copper alloy + copper alloy & tungsten alloy twice, and the vacuum brazing of tungsten alloy & copper alloy is often easy The performance of vacuum brazed joints is affected, and the safe and stable operation of the heat exchange components of the fusion device cannot be guaranteed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Example 1: 316LN stainless steel tube + T2 pure copper + W alloy functional parts (tungsten alloy tube)

[0088] 1. Select a T2M state pure copper rod with a diameter of φ40mm and a length of 500mm, and use a high-precision deep hole drill to process a deep hole of φ10.2*500mm in the center of the copper rod.

[0089] 2. Select 316LN stainless steel pipe with φ10mm*2 length of 1000mm. The roundness tolerance of the stainless steel pipe shall not exceed 0.02mm, and the straightness tolerance of the stainless steel pipe shall not exceed 0.01mm / 100mm.

[0090] 3. Use 10% nitric acid to pickle the inner and outer surfaces of copper pipes and stainless steel pipes.

[0091] 4. Assemble the copper tube and the stainless steel tube assembly together (the copper tube is outside), and seal the gap at both ends with glass glue, select a mandrel with a diameter smaller than the inner diameter of the stainless steel tube, and control the gap between the mandrel and the inner diamet...

Embodiment 2

[0106] Example 2: 316LN stainless steel tube + T2M state pure copper heat conduction components

[0107] 1. Select a 60*100*300mm T2M state pure copper block, and use a high-precision deep hole drill to process a φ10*500mm deep hole in the center of the copper block. The smoothness of the copper inner hole shall not be higher than Ra3.2, the roundness tolerance of the copper inner hole shall not exceed 0.02mm, and the straightness tolerance of the copper inner hole shall not exceed 0.01mm / 100mm.

[0108] 2. Use wire cutting to cut out a 0.8-1.2mm high, 1.6-2mm long, and 300mm deep square groove from the inner wall outwards in the inner hole of the copper block for inserting 2-3 wire-like welding wires.

[0109] 3. Select 316LN stainless steel pipe with φ10*2mm and 500mm in length. The roundness tolerance of the stainless steel pipe shall not exceed 0.02mm, and the straightness tolerance of the stainless steel pipe shall not exceed 0.01mm / 100mm. The roughness of the outer wall...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Outer diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The present invention belongs to a fusion reactor component cooling technology, and specifically discloses a multilayer high heat load composite pipe of a fusion reactor and a manufacturing method thereof; a stainless steel pipe is used as an inner layer pipe, a copper pipe is used as a middle layer pipe, and an alloy or ceramic pipe is used as an outer layer pipe; the manufacturing method includes: first, cleaning a copper pipe; manufacturing the outer layer pipe with tungsten alloy; cleaning the inner stainless steel pipe, cold rolling the copper pipe and the stainless steel pipe, and then assembling the tungsten alloy pipe; and placing an assembled three-layer composite pipe in a vacuum furnace; the tungsten alloy pipe & the copper pipe are vacuum brazed, and the stainless steel pipe &the copper pipe is vacuum diffusion welded. Through axisymmetric cold extrusion, uniform residual compressive stress can be guaranteed between the copper pipe and the steel pipe, and 100% connection can be guaranteed by vacuum diffusion welding; tungsten & copper vacuum brazing and stainless steel & copper vacuum diffusion welding are performed together, thereby saving a lot of costs and preventing stainless steel copper brazed joints from being affected by brazing tungsten copper; filament-filled solder is more practical than ribbon-like solder.

Description

technical field [0001] The invention belongs to the technical field of fusion reactor component cooling, and in particular relates to a multilayer composite tube and a manufacturing method. Background technique [0002] A large number of components composed of stainless steel, copper and tungsten alloys interconnected in fusion devices are used to withstand high thermal loads and harsh neutron irradiation environments. After testing, it was found that the traditional three-layer structure of stainless steel, copper alloy and tungsten alloy adopts the vacuum brazing process route of stainless steel & copper alloy + copper alloy & tungsten alloy twice, and the vacuum brazing of tungsten alloy & copper alloy is often easy The performance of the vacuum brazed joint is affected, and the safe and stable operation of the heat exchange components of the fusion device cannot be guaranteed. Contents of the invention [0003] The object of the present invention is to provide a fusio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23K31/02
CPCB23K31/027
Inventor 张腾李鹏远柳根魏海鸿孙振超李敏陈辉
Owner SOUTHWESTERN INST OF PHYSICS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com