Backup structure for an uprising pipe or downfalling pipe in a vacuum degassing apparatus
US7762105B2 · kind B2 · utility
2Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2007 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Dec 13, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A backup structure for an uprising pipe or a downfalling pipe of a vacuum degassing apparatus including the uprising pipe, a vacuum degassing vessel and the downfalling pipe, comprises the uprising pipe or the downfalling being made of platinum or a platinum alloy and having refractory bricks disposed therearound; and the refractory bricks having a thermal expansion relief member disposed on a top end thereof, the thermal expansion relief member comprising a material selected from a metal material and a ceramic material having a creep strength (JIS Z2271: 1993) of 35 MPa or above at 760° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.