Title:
COPPER-TUNGSTEN ALLOY MATERIAL, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/068812
Kind Code:
A1
Abstract:
The present application provides a copper-tungsten alloy material, a preparation method therefor, and an application thereof. The copper-tungsten alloy material consists of the following components in mass percent: Cu: 18.0-22.0%; graphene: 0.005-0.1%, the total C content being less than or equal to 0.15%; impurity Fe: the content being less than or equal to 0.02%; impurity SiO2: the content being less than or equal to 0.02%; and the remainder of W and other inevitable trace impurities. According to the copper-tungsten alloy material, by adding graphene and defining the contents of various components, in particular the content of graphene and the total C content, the conductive and mechanical performance of the copper-tungsten alloy material is improved, wherein the density is greater than or equal to 15.35 g/cm3, the hardness (HB) is greater than or equal to 232, the conductivity is greater than or equal to 40.7% IACS (20°C), and the bending strength is greater than or equal to 1055 MPa, such that various performance requirements for an arcing contact material for a high-voltage SF6 circuit breaker can be well satisfied.
Inventors:
ZHU ZHIXIANG (CN)
DING YI (CN)
CHEN BAOAN (CN)
ZHANG QIANG (CN)
ZHU CHENGZHI (CN)
DING YI (CN)
CHEN BAOAN (CN)
ZHANG QIANG (CN)
ZHU CHENGZHI (CN)
Application Number:
PCT/CN2021/121307
Publication Date:
April 07, 2022
Filing Date:
September 28, 2021
Export Citation:
Assignee:
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD (CN)
STATE GRID CORP CHINA (CN)
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD (CN)
STATE GRID CORP CHINA (CN)
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD (CN)
International Classes:
C22C27/04; C22C1/05; C22C1/10; C22F1/02; C22F1/18
Foreign References:
| CN112126838A | 2020-12-25 | |||
| CN110438383A | 2019-11-12 | |||
| CN106498209A | 2017-03-15 | |||
| CN110172632A | 2019-08-27 | |||
| CN110756794A | 2020-02-07 |
Other References:
ZHANG, LU: "STUDY ON PREPARATION, MICROSTRUCTURE AND PERFORMANCE OF GRAPHENE MODIFIED CuW80 ALLOY AS CONTACT MATERIALS", CHINESE MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE AND TECHNOLOGY I, 1 October 2019 (2019-10-01), pages 1 - 86, XP055791088, [retrieved on 20210329]
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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