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.)
Expired
Application number
GB3098660A
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.)
WC Heraus GmbH and Co KG
Ruhrstahl AG
Original Assignee
WC Heraus GmbH and Co KG
Ruhrstahl AG
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 WC Heraus GmbH and Co KG, Ruhrstahl AGfiledCriticalWC Heraus GmbH and Co KG
Publication of GB961946ApublicationCriticalpatent/GB961946A/en
C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
C21C7/10—Handling in a vacuum
Landscapes
Chemical & Material Sciences
(AREA)
Engineering & Computer Science
(AREA)
Materials Engineering
(AREA)
Metallurgy
(AREA)
Organic Chemistry
(AREA)
Treatment Of Steel In Its Molten State
(AREA)
Abstract
A method of degassifying alloyed or non-alloyed steel comprises subjecting the steel having a silicon content not exceeding 0.10% to a circulating vacuum degassing process using hydrogen as a circulating and reactive gas during the first part of the degassing. Before the degassification is complete the silicon content may be increased to kill the steel. Specication 961,945 is referred to.
GB3098660A1959-09-081960-09-08Improvements in method of treating molten steel at reduced pressure
ExpiredGB961946A
(en)