Title:
ハイス加工工程の廃棄物からハイス母合金を製造するリサイクル方法
Document Type and Number:
Japanese Patent JP7417341
Kind Code:
B2
Abstract:
A method of recycling wastes of an HSS processing process includes: a pre-treating step of pre-treating the wastes of the HSS processing process; a primary melting step of forming a primary melt by primarily melting at least one of ferro molybdenum, ferro tungsten, and ferro cobalt and the pre-treated wastes of the HSS processing process at 1500 to 2500 degrees Celsius (°C), and a preparing step of preparing the HSS master alloy by ingot casting the primary melt, wherein the pre-treating step includes: a separating step of separating the wastes of the HSS processing process according to a composition; and a mixing step of forming a mixture by mixing oxides containing at least one of K2O, CaO, MgO, SiO2, Al2O3, and Fe2O3 and the separated wastes of the HSS processing process with each other, the mixture having a melting point of 800 to 1700°C.
Inventors:
Kim, Bae Gyun
Kang, Kyung Sik
Kang, Kyung Sik
Application Number:
JP2023509368A
Publication Date:
January 18, 2024
Filing Date:
June 03, 2021
Export Citation:
Assignee:
T&E INC.
International Classes:
C22B7/00; C22B23/02; C22B34/34; C22B34/36; C22C35/00; C22C38/00; C22C38/30
Domestic Patent References:
| JP2010528849A | ||||
| JP2000144333A |
Foreign References:
| CN102952921A | ||||
| US2394578 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tokai Patent Office