Directionally solidified high-boron and high-vanadium high-speed steel and method for preparing same
US11878344B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jun 9, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Jun 24, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D29/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are a high-boron high-vanadium high-speed steel and a method for preparing the same. Pig iron, scrap steel, ferrochromium, ferromanganese, ferroboron, ferrovanadium, industrial pure iron, ferromolybdenum, ferrotungsten, ferrosilicon and ferrotitanium are subjected to smelting at 1580-1600° C. and refining to obtain a liquid steel. The liquid steel is subjected to superheating, and directional solidification at a casting temperature of 1420-1430° C., and cooled to room temperature to obtain the directionally solidified high-speed steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.