Title:
DIE FOR HOT FORGING AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/058101
Kind Code:
A1
Abstract:
Provided are a die for hot forging which has high high-temperature compression strength and can have a prolonged die life and a method for producing the die for hot forging. The die for hot forging is made of a casting alloy having a composition comprising, in terms of mass%, 7.5-20.0% W, 0-5.0% Mo, 5.0-7.5% Al, 0.5-5.0% Cr, 1.0-12.0% Ta, 0.01-0.15% C, up to 0.03% B, up to 0.015% S, 0-0.020% one or more elements, in total, selected from among rare earth elements, Y, Ca, and Mg, up to 0.5% one or the two elements, in total, selected from between Zr and Hf, up to 5.0% Ti, up to 5.0% Nb, and up to 25.0% Co, with the remainder comprising Ni and unavoidable impurities. In the die for hot forging, the dendrite core contains a gamma prime phase having an equivalent circular diameter of 2.20 μm or smaller. The production method is suitable for producing the die for hot forging.
Inventors:
SUZUKI SHOGO (JP)
Application Number:
PCT/JP2023/032994
Publication Date:
March 21, 2024
Filing Date:
September 11, 2023
Export Citation:
Assignee:
PROTERIAL LTD (JP)
International Classes:
B21J13/02; B21D37/01; C22C19/05; C22C30/00; C22F1/00; C22F1/10; C22F1/16
Domestic Patent References:
| WO2019106922A1 | 2019-06-06 | |||
| WO2020059846A1 | 2020-03-26 | |||
| WO2019097663A1 | 2019-05-23 |
Foreign References:
| JP2020196951A | 2020-12-10 | |||
| JP2020196047A | 2020-12-10 | |||
| JP2002146460A | 2002-05-22 | |||
| JP2020163470A | 2020-10-08 | |||
| JPS49128818A | 1974-12-10 | |||
| CN111575535A | 2020-08-25 | |||
| CN114032420A | 2022-02-11 |
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