Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hollow oxygen-free copper rod vacuum electron beam welding method, current lead and nuclear fusion device

A technology of vacuum electron beam welding and oxygen-free copper rods, which is applied in the direction of electron beam welding equipment, welding equipment, welding/welding/cutting items, etc., which can solve the problem of poor sealing of welded joints, difficulty in meeting design requirements, and poor weld surface shape and other problems, to achieve the effect of good sealing of welded joints, long service life and stable performance

Active Publication Date: 2021-09-24
淮南新能源研究中心
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the above-mentioned thick-walled hollow oxygen-free copper rod is welded directly by the ordinary vacuum electron beam welding method, there will be defects such as poor weld surface formation, severe spatter, and serious arc craters, resulting in poor sealing of the welded joints and poor resistance to corrosion. Low tensile strength, difficult to meet design requirements

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hollow oxygen-free copper rod vacuum electron beam welding method, current lead and nuclear fusion device
  • Hollow oxygen-free copper rod vacuum electron beam welding method, current lead and nuclear fusion device
  • Hollow oxygen-free copper rod vacuum electron beam welding method, current lead and nuclear fusion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0025] This embodiment takes two C10200 hollow oxygen-free copper rods with an outer diameter of φ105mm, an inner hole diameter of φ16mm, and a copper rod length of 80mm as an example, which are hereinafter referred to as the first hollow oxygen-free copper rod 1 and the second hollow oxygen-free copper rod 2 ( Such as figure 1 shown).

[0026] A vacuum electron beam welding method for a hollow oxygen-free copper rod provided by the invention comprises the following steps:

[0027] (1) Use fine sandpaper dipped in alcohol to polish the first and second hollow oxygen-free copper rods to be welded and the metal surface within 40mm of the surroundi...

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
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a hollow oxygen-free copper rod vacuum electron beam welding method, a current lead wire and a nuclear fusion device. The method includes the steps of positioning welding, deep penetration welding, and modification welding; The integral hollow oxygen-free copper rod is formed by the beam welding method, and the nuclear fusion device adopts the above-mentioned current leads. The welding method of the present invention not only makes the welding between the hollow oxygen-free copper rods stable, the weld seam width is uniform, the spatter is small and the arc is full, but also has the characteristics of good sealing performance of the welded joint and high tensile strength; The resulting current lead, and the nuclear fusion device using the current lead have the advantages of stable performance, long service life and the like brought about by the above effects.

Description

technical field [0001] The invention relates to the technical field of manufacturing technology of current leads in nuclear fusion devices, in particular to a vacuum electron beam welding method for hollow oxygen-free copper rods, current leads and nuclear fusion devices. Background technique [0002] The current leads in the nuclear fusion device are made of oxygen-free copper with excellent conductivity, and several thick-walled hollow oxygen-free copper rods need to be welded during manufacture. [0003] Due to the high thermal conductivity of oxygen-free copper, it is impossible to directly weld the hollow oxygen-free copper rod. Usually, it needs to be preheated to about 400°C and welded at high temperature. Not only is the labor intensity high, but also because oxygen-free copper in a liquid state has strong gas absorption and certain oxidation properties, cracks, pores and other defects are prone to appear during the welding process. [0004] Vacuum electron beam wel...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B23K15/06B23K15/00
CPCB23K15/0006B23K15/0033B23K15/06B23K2103/12
Inventor 刘振飞刘志宏马建国彭黎明沈旭邢银龙张冬洋
Owner 淮南新能源研究中心
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com