Investment shell molding process
US4040466A · kind A · utility
9Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1975 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Oct 23, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C9/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making investment shell molds by the lost pattern process characterized in that a strand such as wire or the like is wound circumferentially about a pattern assembly in at least one location before it is coated with refractory material to form a mold shell. Thereafter, the strand is unwound to separate the shell into segments, each of which is usable as a mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.