Patent · US Expired

Aluminothermic mixture with ferrochromium alloy

US5944914A · kind A · utility

0Cited by

0References

10Claims

0Family size

Assignee

Elektro-Thermit GmbH · US

Inventors

Georg Frommeyer · Erkrath, DE
Michael Kulse · Oberhausen, DE
Gerhardus Johannes Mulder · Essen, DE
Michael Steinhorst · Essen, DE

Key dates

Filing date	Nov 21, 1997
Grant date	Aug 31, 1999
Priority date	—
Expiry date	Nov 21, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K23/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to an aluminothermic mixture consisting of a finely particulate base portion of iron oxides and aluminum as well as metallic additives, wherein a master alloy, namely a ferrochromium alloy consisting of (in % by weight) PA1 C: 0.1 to 20 PA1 Si: 2 to 40 PA1 Cr: 5 to 80 and iron with impurities resulting from manufacture and, if appropriate, other alloying elements, is added in a quantity of from 5 to 50% by weight, relative to the base portion, as metallic additive.

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