The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1985
Filed:
May. 04, 1983
Hans Heinrich, Eslingen, DE;
Dieter Hedrich, Schwabisch Gmund, DE;
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Abstract
The invention relates to a process for the hydrogen-impermeable brazing of austenitic structural steel parts. These are initially loosely joined at soldering points with the addition of definite amounts of solder and soldering agent and subsequently brought to soldering temperature in a furnace under a high vacuum. In order to obtain a satisfactory wetting characteristic, on the one hand, and a good hydrogen resistance, on the other hand, a bicomponent soldering process is provided, with about 1 part by weight of nickel-base solder and about 3 parts by weight of bronze-base solder. The nickel-base solder contains about 1-3% by weight of boron and 2-5% by weight of silicon. The nickel-base solder may amount to at most about 30% by weight of solder. Such soldered joints are used for storage pipes at metal hydride reservoirs.