EP 0180010 A2 19860507 - Processing materials in furnaces.
Title (en)
Processing materials in furnaces.
Title (de)
Behandlung von Material in Öfen.
Title (fr)
Traitement de matériaux dans des fours.
Publication
Application
Priority
US 66540484 A 19841026
Abstract (en)
A structure is shown for achieving low oxygen content high quality atmosphere surrounding a workpiece as it is processed in the reducing atmosphere of a furnace. The structure is a container which encloses the workpiece and functions as a catalyst for the reaction of H2 and O2 in an H2 containing atmosphere, i e., H2 and forming gas, etc. The structure of the enclosure or container includes a bottom tray or boat 10 which is coated with a metal such as platinum and a top or cover 12 made from metal screening or metal coated screening which metal may also be platinum. The bottom tray may also be composed of mesh or screening material as an alternative to being solid. Platinum is a preferred embodiment for the metal boat and screen because it is an excellent catalyst for the reaction of O2 and H2 and is active at temperatures at least as low as 150 DEG C. One or more workpieces may be disposed in the boat so they are surrounded by the catalyst metal. The catalyst reaction depends upon gas contact with the surface, and the screening offers a large surface area which enhances this contact while still allowing the furnace gases to flow and convectively heat the workpiece.
IPC 1-7
IPC 8 full level
H05K 3/34 (2006.01); C21D 9/00 (2006.01); F27B 9/04 (2006.01); F27B 9/26 (2006.01); F27B 9/30 (2006.01); F27D 3/12 (2006.01); F27D 5/00 (2006.01); H01L 21/322 (2006.01); F27D 1/00 (2006.01)
CPC (source: EP)
C21D 9/0025 (2013.01); F27B 9/04 (2013.01); F27B 9/26 (2013.01); F27D 5/00 (2013.01); F27D 1/003 (2013.01); F27D 5/0068 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0180010 A2 19860507; EP 0180010 A3 19880810; JP S61107091 A 19860524
DOCDB simple family (application)
EP 85111305 A 19850906; JP 15529985 A 19850716