Title:
Q235B STEEL/316 STAINLESS STEEL ELECTROSLAG REMELTING COMPOSITE METHOD
Document Type and Number:
WIPO Patent Application WO/2023/050509
Kind Code:
A1
Abstract:
Provided in the present invention is a Q235B steel/316 stainless steel electroslag remelting composite method. The method comprises: vertically placing an arc striking electrode into a furnace, and making a tip be 30-70 mm away from an arc striking agent, and adjusting the current and voltage; during electroslag remelting of Q235B steel/316 stainless steel, using a slag system having the mass percentage of 70% CaF2 and 30% Al2O3; after slag melting temperature rising time is reached, taking the electrode away from a slag surface, cutting off a high voltage, lifting the electrode, replacing same with a consumable electrode, adjusting a smelting current, gradually changing the smelting current to a normal smelting current within 8 minutes, and if the consumable electrode is used for arc striking and slagging, after the slag is subjected to dissolved clarification, gradually increasing the current for normal refining; and when the electrode is melted by less than or equal to 100 mm in the late period, gradually decreasing the current to a filling current for filling and feeding; and the slag directly entering a heating furnace after electroslag remelting, and then directly entering a rolling mill for rolling, wherein the interfacial shear strength of a composite board is greater than or equal to 135 MPa, the tensile strength is greater than or equal to 345 MPa, and the number of instances of repeated bending is greater than or equal to 6.
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Inventors:
ZHOU FENG (CN)
WU KAIMING (CN)
ZHOU QING (CN)
WU KAIMING (CN)
ZHOU QING (CN)
Application Number:
PCT/CN2021/126667
Publication Date:
April 06, 2023
Filing Date:
October 27, 2021
Export Citation:
Assignee:
CAIGUJINDAI FOSHAN METAL COMPOSITE MAT CO LTD (CN)
FOSHAN POLYTECHNIC (CN)
FOSHAN POLYTECHNIC (CN)
International Classes:
B22D7/02; B22D23/10; C22B9/18
Foreign References:
| CN1736634A | 2006-02-22 | |||
| CN101029345A | 2007-09-05 | |||
| CN111622022A | 2020-09-04 | |||
| CN103757436A | 2014-04-30 | |||
| CN102605190A | 2012-07-25 | |||
| CN111069574A | 2020-04-28 | |||
| CN107245668A | 2017-10-13 | |||
| CN104139232A | 2014-11-12 | |||
| US4544019A | 1985-10-01 |
Attorney, Agent or Firm:
BEIJING SHENGFANZHIRONG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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