Process for producing fiber-reinforced light-metal castings

US4653569A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Eggert Tank · Wernau, DE
• Dieter Hedrich · Schwäbisch Gmünd, DE
• Peter Straub · Zug, CH

Key dates

• Filing date: Feb 7, 1986
• Grant date: Mar 31, 1987
• Expiry date: Feb 7, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D19/14
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process is described for producing fiber-reinforced light-metal castings in which a loose fiber tangle is placed in a casting mold and is saturated with molten light-metal under low pressure. Subsequently, the excess of molten light-metal is squeezed off while the fiber tangle is compressed. The outflow of the molten light-metal is then stopped with the molten light-metal being solidified under high pressure. The process is especially suitable for utilizing the solution-spun inorganic fiber tangles that up to now had not been especially suitable for the reinforcing of light-metals.