BR8806870A - Metodo e aparelho para limpeza de metal em fusao - Google Patents

Metodo e aparelho para limpeza de metal em fusao

Info

Publication number: BR8806870A
Authority: BR; Brazil
Prior art keywords: appliance; metal cleaning; fusing metal; fusing; cleaning
Prior art date: 1987-12-25

Application number

BR888806870A

Other languages

English (en)

Inventor

Toshio Ishii

Yutaka Okubo

Shuzo Fukuda

Original Assignee

Nippon Kokan Kk

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.)

1987-12-25

Filing date

1988-12-26

Publication date

1989-08-29

1987-12-25 Priority claimed from JP62326722A external-priority patent/JPH01170555A/ja

1987-12-25 Priority claimed from JP62326723A external-priority patent/JPH01170556A/ja

1988-01-12 Priority claimed from JP311288A external-priority patent/JP2629225B2/ja

1988-12-26 Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk

1989-08-29 Publication of BR8806870A publication Critical patent/BR8806870A/pt

Classifications

- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C21C5/567—Manufacture of steel by other methods operating in a continuous way
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21C7/0081—Treating and handling under pressure

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Mechanical Engineering (AREA)
Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Treatment Of Steel In Its Molten State (AREA)
Manufacture And Refinement Of Metals (AREA)

BR888806870A 1987-12-25 1988-12-26 Metodo e aparelho para limpeza de metal em fusao BR8806870A (pt)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP62326722A JPH01170555A (ja)	1987-12-25	1987-12-25	溶融金属の清浄化方法
JP62326723A JPH01170556A (ja)	1987-12-25	1987-12-25	溶融金属の清浄化方法
JP311288A JP2629225B2 (ja)	1988-01-12	1988-01-12	溶融金属の清浄化方法
JP311388		1988-01-12

Publications (1)

Publication Number	Publication Date
BR8806870A true BR8806870A (pt)	1989-08-29

Family

ID=27453785

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR888806870A BR8806870A (pt)	1987-12-25	1988-12-26	Metodo e aparelho para limpeza de metal em fusao

Country Status (6)

Country	Link
EP (1)	EP0322763B1 (pt)
KR (1)	KR930005065B1 (pt)
AU (1)	AU605949B2 (pt)
BR (1)	BR8806870A (pt)
CA (1)	CA1337744C (pt)
DE (1)	DE3883190T2 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH01188619A (ja) *	1988-01-21	1989-07-27	Nkk Corp	Ｒｈ真空脱ガス法
CN104404205B (zh) *	2014-10-27	2017-02-08	北京科技大学	一种增氮析氮法去除钢液中显微非金属夹杂物的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1168461B (de) *	1959-07-10	1964-04-23	Fischer Ag Georg	Verfahren zum Behandeln von Metallschmelzen, insbesondere Stahlschmelzen
AT256156B (de) *	1961-10-13	1967-08-10	Wilhelm Dipl Ing Dr Tech Stich	Verfahren und Vorrichtung zur Hochdruck-Wärmebehandlung im Vakuum hergestellten Stahles
FR1359312A (fr) *	1963-03-14	1964-04-24	Siderurgie Fse Inst Rech	Perfectionnements aux procédés de dégazage des métaux en fusion
SE311533B (pt) *	1963-11-11	1969-06-16	Asea Ab
DE1583287C3 (de) *	1967-11-30	1973-10-11	Salzgitter Ag, 1000 Berlin Und 3321 Salzgitter	Vorrichtung zur Durchfuhrung von Reaktionen zwischen Flussig keiten und Gasen, insbesondere zum Frischen von Roheisen mit Sauerstoff
SE329410B (pt) *	1968-01-31	1970-10-12	Asea Ab
BE735159A (pt) *	1969-06-25	1969-12-29
HU179333B (en) *	1978-10-04	1982-09-28	Vasipari Kutato Intezet	Method and apparatus for decreasing the unclusion contents and refining the structure of steels
FR2491954A1 (fr) *	1980-10-14	1982-04-16	Pechiney Aluminium	Dispositif de traitement d'un bain de metal liquide par injection de gaz

1988
- 1988-12-19 AU AU27038/88A patent/AU605949B2/en not_active Ceased
- 1988-12-22 EP EP88121503A patent/EP0322763B1/en not_active Expired - Lifetime
- 1988-12-22 DE DE88121503T patent/DE3883190T2/de not_active Expired - Fee Related
- 1988-12-23 CA CA000586963A patent/CA1337744C/en not_active Expired - Fee Related
- 1988-12-24 KR KR1019880017424A patent/KR930005065B1/ko not_active Expired - Fee Related
- 1988-12-26 BR BR888806870A patent/BR8806870A/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
AU2703888A (en)	1989-08-17
CA1337744C (en)	1995-12-19
DE3883190T2 (de)	1994-01-05
AU605949B2 (en)	1991-01-24
EP0322763A3 (en)	1990-02-07
EP0322763B1 (en)	1993-08-11
DE3883190D1 (de)	1993-09-16
EP0322763A2 (en)	1989-07-05
KR930005065B1 (ko)	1993-06-15
KR890010223A (ko)	1989-08-07

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Legal Events

Date	Code	Title	Description
1995-09-05	FF	Decision: intention to grant
1996-04-30	FG	Letter patent granted
2008-09-02	B21A	Expiry acc. art. 78, item i of ipl- expiry of the term of protection	Free format text: PATENTE EXTINTA EM 26/12/2003