Metal casting process using a lost pattern, moulds for performing this process and process for the production of said moulds

US4700768A · kind A · utility

Assignees

• U.C.P.I. Societe pour l'Utilisation des Ceramiques et des Platres dans l'Industrie · FR
• Messier Fonderie D'Arudy · FR

Inventors

• Georges Broihanne · Pau, FR
• Pierre Magnier · Châtenay-Malabry, FR

Key dates

• Filing date: May 23, 1986
• Grant date: Oct 20, 1987
• Expiry date: May 23, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22C9/04
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

There is disclosed a mould for lost pattern casting. The shell of the mould comprises a graphite coating and a hydrocarbon binder. The binder comprises a polyol with at least three alcohol functions such as pentaerithritol.