Patent · US Expired

Method for making a composite part with magnesium matrix by infiltration casting

US6125914A · kind A · utility

1Cited by

2References

20Claims

0Family size

Assignee

Aerospatiale Societe Nationale Industrielle · FR

Inventors

Laetitia Billaud · Paris, FR
Philippe Le Vacon · Guyancourt, FR

Key dates

Filing date	Nov 23, 1998
Grant date	Oct 3, 2000
Priority date	—
Expiry date	Nov 23, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D19/14
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A mold having a supply tube in a lower portion and in which has been placed a fibrous preform, is placed in a container. A crucible filled with magnesium blocks is placed under the mold. The magnesium is heated and the mold is preheated under vacuum until the fusion of the magnesium starts. The tube is then introduced into the magnesium and a neutral gas circulation is set up in the container, under a vacuum insufficient to trigger the evaporation of magnesium. After its complete fusion, the magnesium is transferred into the mold by a rapid pressurization of the container. The mold is then cooled and the part removed from the mold.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.