Title:
METHOD FOR PREPARING COPPER-IRON ALLOY MATERIAL HAVING ELECTROMAGNETIC SHIELDING PERFORMANCE
Document Type and Number:
WIPO Patent Application WO/2021/098381
Kind Code:
A1
Abstract:
A method for preparing a copper-iron alloy material that has an electromagnetic shielding performance, comprising smelting: weighing a CuFe master alloy and an electrolytic copper plate according to mass percentage, and smelting in an intermediate-frequency induction furnace to obtain a uniform alloy solution; casting: using a graphite-lined copper crystallizer to cool and crystallize the foregoing alloy solution to obtain a rectangular alloy ingot; hot rolling: heating the alloy ingot, and carrying out hot rolling in several passes on a two-roll reversible rolling mill; surface milling: milling the hot rolled billet sheet up and down on a double-sided milling device; cold rolling and annealing: carrying out cold rolling on a strip, and carrying out an annealing treatment during cold rolling to obtain a semi-finished strip; heat treatment and cleaning: carrying out a heat treatment on the semi-finished strip, and after the heat treatment, carrying out surface cleaning to obtain a finished alloy strip.
Inventors:
ZHOU BIN (CN)
WANG QUN (CN)
YANG HONGYAN (CN)
SUN JUNPENG (CN)
GUO CHUANGLI (CN)
SHAN YING (CN)
LIANG JIANBIN (CN)
WANG WENBIN (CN)
WANG QUN (CN)
YANG HONGYAN (CN)
SUN JUNPENG (CN)
GUO CHUANGLI (CN)
SHAN YING (CN)
LIANG JIANBIN (CN)
WANG WENBIN (CN)
Application Number:
PCT/CN2020/118032
Publication Date:
May 27, 2021
Filing Date:
September 27, 2020
Export Citation:
Assignee:
SIRUI ADVANCED COPPER ALLOY CO LTD (CN)
International Classes:
C22C9/00; C22C1/03; C22F1/08; H05K9/00
Foreign References:
| CN110699571A | 2020-01-17 | |||
| CN110229972A | 2019-09-13 | |||
| CN107695622A | 2018-02-16 | |||
| CN104988350A | 2015-10-21 | |||
| CN109576516A | 2019-04-05 | |||
| KR20180117751A | 2018-10-30 | |||
| JP2015151559A | 2015-08-24 |
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
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