Thermal shock resistant casting element and manufacturing process thereof
US7237596B2 · kind B2 · utility
1Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Mar 28, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/54
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention concerns an element for the casting of a liquid metal, comprising a base body made from a refractory material, said body comprising an outer surface and an inner surface defining a pouring channel for the casting of the liquid metal. This element is characterized in that at least a part of the element inner surface is coated with an insulating coating forming, at the metal liquid contact, a gas impermeable layer. Such an element has an excellent thermal shock resistance which permits its use without preheating. Then a layer reducing advantageously the gas permeability is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.