Method for continuously casting ingot made of titanium or titanium alloy
US9427796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jan 23, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D27/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a continuous casting method in which a melt obtained by melting titanium or a titanium alloy is poured into a bottomless mold and is drawn downward while being solidified, wherein: the surface of the melt in the mold is heated by horizontally moving a plasma torch over the surface of the melt; thermocouples are provided at a plurality of locations along the circumferential direction of the mold; if the temperature of the mold measured by one of the thermocouples is lower than a target temperature, then the output of the plasma torch is increased when the plasma torch comes close to the location where that thermocouple is installed; and if said temperature is higher than the target temperature, then the output of the plasma torch is decreased when the plasma torch comes close to the location where that thermocouple is installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.