Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of FR447892ApublicationCriticalpatent/FR447892A/fr
F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21B—MANUFACTURE OF IRON OR STEEL
C21B13/00—Making spongy iron or liquid steel, by direct processes
C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
Landscapes
Engineering & Computer Science
(AREA)
Chemical & Material Sciences
(AREA)
Mechanical Engineering
(AREA)
General Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Materials Engineering
(AREA)
Metallurgy
(AREA)
Organic Chemistry
(AREA)
FR447892D1911-11-091911-11-09Perfectionnements dans les fours pour la production directe du fer et de l'acier au moyen des minerais de fer
ExpiredFR447892A
(fr)
Procédé de fabrication du ferrotungstène au moyen du wolfram (minerai) pouvant utiliser les fours et les creusets employés pour la fusion de l'acier