NO156377B - PROCEDURE FOR REFINING METAL BATH AND DEVICE FOR CARRYING OUT THE PROCEDURE. - Google Patents

PROCEDURE FOR REFINING METAL BATH AND DEVICE FOR CARRYING OUT THE PROCEDURE. Download PDF

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Publication number
NO156377B
NO156377B NO824070A NO824070A NO156377B NO 156377 B NO156377 B NO 156377B NO 824070 A NO824070 A NO 824070A NO 824070 A NO824070 A NO 824070A NO 156377 B NO156377 B NO 156377B
Authority
NO
Norway
Prior art keywords
ski
angle
lower edge
bath
horizontal
Prior art date
Application number
NO824070A
Other languages
Norwegian (no)
Other versions
NO156377C (en
NO824070L (en
Inventor
Paul Metz
Francois Schleimer
Ferdinand Goedert
Romain Henrion
Henri Klein
Jean-Francois Liesch
Original Assignee
Arbed
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 Arbed filed Critical Arbed
Publication of NO824070L publication Critical patent/NO824070L/en
Publication of NO156377B publication Critical patent/NO156377B/en
Publication of NO156377C publication Critical patent/NO156377C/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/305—Afterburning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Coating With Molten Metal (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Processing Of Solid Wastes (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

1. Process for refining a metal bath containing substantial quantities of solid cooling matter, in particular scrap metal, which provides for a refining operation through blowing of oxygen from the top on to the surface of the bath and introducing powdered carbon suspended in a neutral gas jet into the bath, said jet being directed on to the bath surface, characterized in that a velocity of the order of Mach 1.5 to Mach 2.5 is imparted to the jet and in that a quantity of neutral gas is injected simultaneously into the bath, through permeable elements lodged in the bottom of the vessel, which is sufficient to prevent foaming of the slag under the effect of the added carbon.

Description

THE CARLTON TYRE SAVING COMPANY LTD., THE CARLTON TIRE SAVING COMPANY LTD.,

For de skiløpere som går forholdsvis For those skiers who go comparatively

sjeldent på ski, foreligger den vanskelighet at de ikke får trenet opp sine muskler til-strekkelig til å kunne gjøre bruk av den moderne skiteknikk. Dette gjelder særlig når tretthet inntrer. Hensikten med oppfinnelsen er i det minste delvis å avhjelpe dette. rarely on skis, there is the difficulty that they cannot train their muscles sufficiently to be able to make use of the modern skiing technique. This is especially true when fatigue sets in. The purpose of the invention is to at least partially remedy this.

Oppfinnelsen angår egentlig et par ski, The invention actually concerns a pair of skis,

idet de to ski forutsetningsvis ikke er iden-tisk like, dvs. at hver av skiene ikke er symmetrisk utformet, som tilfellet hittil er. Oppfinnelsen omfatter kun skiene, således ikke bindingene. in that the two skis are presumably not identically similar, i.e. that each of the skis is not symmetrically designed, as has been the case so far. The invention only covers the skis, thus not the bindings.

Nærmere bestemt utmerker skiene Specifically, the skis excel

ifølge oppfinnelsen seg ved at styrerillen i skiens løpeflate er erstattet av en langsgående utsparing med usymmetrisk, kileformet profil som er begrenset av to skråflater, av hvilke den første skråflate utgår fra hver skis indre nedre kant (dvs. den nedre kant som er nærmest den annen ski tilhørende paret) og forløper på tvers av skiens lengderetning under en vinkel med horisontalen på mellom 2 og 10°, inntil den skjærer den annen skråflate som skråner nedad og danner en vinkel med horisontalen på mellom 90 og 45°, fra hvilken sistnevnte skråflates skjæring med hori-sontalplanet løpeflaten fortsetter oppad til skiens ytre, nedre kant under en vinkel på mellom 0 og 10° med horisontalen. according to the invention in that the guide groove in the running surface of the ski is replaced by a longitudinal recess with an asymmetrical, wedge-shaped profile which is limited by two inclined surfaces, of which the first inclined surface starts from the inner lower edge of each ski (i.e. the lower edge closest to the other ski belonging to the pair) and extends across the longitudinal direction of the ski at an angle with the horizontal of between 2 and 10°, until it intersects the second inclined surface which slopes downwards and forms an angle with the horizontal of between 90 and 45°, from which the intersection of the latter inclined surface with the horizontal plane, the running surface continues upwards to the outer, lower edge of the ski at an angle of between 0 and 10° with the horizontal.

Hensiktsmessig er avstanden fra skiens Appropriate is the distance from the ski

indre nedre kant til den annen vinkels fot-punkt 60 til 90 pst. av hele skiens bredde. inner lower edge to the foot-point of the other angle 60 to 90 per cent of the entire width of the ski.

Skiens ytre kant kan være avrundet langs i det vesentlige den fremre tredjedel av skiens lengde. The ski's outer edge may be rounded along essentially the front third of the ski's length.

Oppfinnelsen skal forklares under hen-visning til tegningen, hvor fig. 1 viser i perspektiv et par ski sett mot undersiden og fig. 2 og 3 tverrsnitt av begge ski etter linjene I-l hhv. II-II på fig. 1. The invention will be explained with reference to the drawing, where fig. 1 shows in perspective a pair of skis seen towards the underside and fig. 2 and 3 cross sections of both skis along the lines I-l respectively. II-II in fig. 1.

Som det fremgår av tegningen er ski-paret utført på i og for seg kjent måte, bortsett fra sporet i skiens underside, som er utført annerledes enn vanlig. Særlig av snittet på fig. 2 fremgår det at den nedre indre kant G hhv. Gl av hver ski er skarpere enn vanlig og kan være forsynt med en ikke vist metallisk forsterkningskant. Fra denne nedre indre kant forløper det kileformede spors første flate A skrått oppad og danner en vinkel B hhv. Bl med løpeflaten eller horisontalen på mellom 2 og 10°. Når skiens ytre kant krysser denne flate A med en annen skråflate C hhv. Cl som skråner nedad og danner en vinkel D hhv. Dj med løpeflaten eller horisontalen på mellom 90 og 45°. Resten av løpeflaten er betegnet med E og skråner oppad en vinkel F hhv. Fl på mellom 0 og 10°. As can be seen from the drawing, the pair of skis is made in a manner known per se, except for the groove in the underside of the ski, which is made differently than usual. Especially of the section on fig. 2 it appears that the lower inner edge G or The edge of each ski is sharper than usual and may be fitted with a metallic reinforcing edge, not shown. From this lower inner edge, the first surface A of the wedge-shaped groove extends obliquely upwards and forms an angle B or Bl with the running surface or the horizontal at between 2 and 10°. When the outer edge of the ski crosses this surface A with another inclined surface C or Cl which slopes downwards and forms an angle D or Dj with the running surface or the horizontal at between 90 and 45°. The rest of the running surface is denoted by E and slopes upwards at an angle F or Fl of between 0 and 10°.

I snittet på fig. 3 er vinklene i det vesentlige de samme som angitt ovenfor, idet altså vinkelen B2, B3 er lik vinkelen B hhv. Bl, vinkelen C2, C3 er lik vinkelen C hhv. Cl og vinkelen F2, F3 er lik vinkelen F hhv. Fl. Som nevnt kan skiens nedre ytre kant være avrundet langs den fremre tredjedel, som vist på fig. 2. De øvrige to tredjedeler av skiens nedre ytre kant er derimot skarp, se fig. 3. Overgangen mellom det avrundede og skarpe parti er jevn. In the section in fig. 3, the angles are essentially the same as stated above, in that the angle B2, B3 is equal to the angle B or Bl, the angle C2, C3 is equal to the angle C or Cl and the angle F2, F3 are equal to the angle F respectively. Fl. As mentioned, the lower outer edge of the ski can be rounded along the front third, as shown in fig. 2. The other two-thirds of the lower outer edge of the ski is, on the other hand, sharp, see fig. 3. The transition between the rounded and sharp part is smooth.

Det er innlysende at overgangene mellom flatene A, C og E ikke nødvendigvis behøver å være skarpe, men kan være noe avrundet. It is obvious that the transitions between surfaces A, C and E do not necessarily have to be sharp, but can be somewhat rounded.

Det har vist seg at man ved hjelp av et par ski utført i henhold til oppfinnelsen oppnår bedre styring enn ved ski av vanlig utførelse, i tillegg dertil at den indre nedre kant av hver ski er noe skarpere og følgelig til bedre hjelp under svingning. It has been shown that with the help of a pair of skis made in accordance with the invention, better steering is achieved than with skis of a normal design, in addition to that the inner lower edge of each ski is somewhat sharper and consequently of better assistance during turning.

Claims (3)

1. Et par ski, karakterisert ved at styrerillen i skiens løpeflate er erstattet av en langsgående utsparing med usymmetrisk, kileformet profil som er begrenset av to skråflater (A og C; Al og Cl; A2 og C2; A3 og C3) av hvilke den første skråflate (A, Al, A2, A3) utgår fra hver skis indre nedre kant (G, Gl, G2, G3) (dvs. den nedre kant som er nærmest den annen ski til-1. A pair of skis, characterized in that the guide groove in the running surface of the ski is replaced by a longitudinal recess with an asymmetrical, wedge-shaped profile which is limited by two inclined surfaces (A and C; Al and Cl; A2 and C2; A3 and C3) of which the first inclined surface (A, Al, A2, A3) starts from each ski's inner lower edge (G, Gl, G2, G3) (i.e. the lower edge closest to the other ski to- hørende paret) og forløper på tvers av skiens lengderetning under en vinkel (B, Bl, B2, B3) med horisontalen på mellom 2 og 10°, inntil den skjærer den annen skråflate (C, Cl, C2, C3) som skråner nedad og danner en vinkel (D, Dl, D2, D3) med horisontalen på mellom 90 og 45°, fra hvilken sistnevnte skråf lates skjæring med hori-sontalplanet løpeflaten (E, El, E2, E3) fortsetter oppad til skiens ytre, nedre kant under en vinkel (F, Fl, F2, F3) på mellom 0 og 10° med horisontalen.belonging to the pair) and extends across the ski's longitudinal direction at an angle (B, Bl, B2, B3) with the horizontal of between 2 and 10°, until it intersects the second inclined surface (C, Cl, C2, C3) which slopes downwards and forms an angle (D, Dl, D2, D3) with the horizontal of between 90 and 45°, from which the latter inclined plane's intersection with the horizontal plane the running surface (E, El, E2, E3) continues upwards to the outer, lower edge of the ski below an angle (F, Fl, F2, F3) of between 0 and 10° with the horizontal. 2. Ski i henhold til påstand 1, karakterisert ved at avstanden fra skiens indre nedre kant (G, Gl, G2, G3) til den annen skråflates (C, Cl, C2, C3) fot-punkt er 60 til 90 pst. av hele skiens bredde. 2. Ski according to claim 1, characterized in that the distance from the inner lower edge of the ski (G, Gl, G2, G3) to the foot point of the second inclined surface (C, Cl, C2, C3) is 60 to 90 percent of the entire width of the ski. 3. Ski i henhold til påstand 1, karakterisert ved at dens ytre nedre kant er avrundet langs i det vesentlige den fremre tredjedel av skiens lengde.3. Ski according to claim 1, characterized in that its outer lower edge is rounded along essentially the front third of the length of the ski.
NO824070A 1981-12-04 1982-12-03 PROCEDURE FOR REFINING METAL BATHS AND DEVICE FOR CARRYING OUT THE PROCEDURE. NO156377C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU83814A LU83814A1 (en) 1981-12-04 1981-12-04 METHOD AND DEVICE FOR REFINING A METAL BATH CONTAINING SOLID COOLING MATERIALS

Publications (3)

Publication Number Publication Date
NO824070L NO824070L (en) 1983-06-06
NO156377B true NO156377B (en) 1987-06-01
NO156377C NO156377C (en) 1987-09-09

Family

ID=19729779

Family Applications (1)

Application Number Title Priority Date Filing Date
NO824070A NO156377C (en) 1981-12-04 1982-12-03 PROCEDURE FOR REFINING METAL BATHS AND DEVICE FOR CARRYING OUT THE PROCEDURE.

Country Status (15)

Country Link
EP (1) EP0081448B1 (en)
JP (1) JPS58144409A (en)
KR (1) KR890001442B1 (en)
AT (1) ATE22118T1 (en)
AU (1) AU554800B2 (en)
BR (1) BR8206381A (en)
CA (1) CA1199504A (en)
DE (1) DE3273188D1 (en)
ES (1) ES517913A0 (en)
FI (1) FI71769C (en)
LU (1) LU83814A1 (en)
MX (1) MX157546A (en)
NO (1) NO156377C (en)
PT (1) PT75439B (en)
ZA (1) ZA828160B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU84686A1 (en) * 1983-03-11 1984-11-14 Arbed SOLID PARTICLE ACCELERATION DEVICE
LU85363A1 (en) * 1984-05-15 1986-01-29 Arbed ADAPTER DEVICE FOR SOLID PARTICLE ACCELERATION NOZZLE
DE3509795C1 (en) * 1985-03-19 1986-06-05 Klöckner CRA Technologie GmbH, 4100 Duisburg Water-cooled blowing lance for blowing oxygen onto a molten metal
JP2549622B2 (en) * 1985-12-17 1996-10-30 川崎製鉄株式会社 Burner lance for melting scrap iron
LU86321A1 (en) * 1986-02-25 1987-09-10 Arbed OXYGEN BLOWING LANCE
LU86329A1 (en) * 1986-02-28 1987-09-10 Arbed NOZZLE FOR REFINING LANCE
LU87156A1 (en) * 1988-03-11 1989-10-26 Arbed NOZZLE FOR REFINING LANCE
DE4221266C1 (en) * 1992-06-26 1993-10-21 Mannesmann Ag Method and device for inflating oxygen on molten metals
GB0209364D0 (en) 2002-04-24 2002-06-05 Boc Group Plc Injection of particulate material into liquid
GB0209365D0 (en) * 2002-04-24 2002-06-05 Boc Group Plc Injection of solids into liquids
GB0213376D0 (en) 2002-06-11 2002-07-24 Boc Group Plc Refining ferroalloys
JP4853326B2 (en) * 2007-02-26 2012-01-11 Ｊｆｅスチール株式会社 Refining top blow lance and method for detecting hole breakage in refining top blow lance
US8756013B2 (en) 2012-04-10 2014-06-17 International Business Machines Corporation Personalized route generation
CN106705680B (en) * 2016-12-16 2023-05-12 昆明理工大学 Rotary jet oxygen gun for supplying heat to bottom of hearth and application method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1202754A (en) * 1958-04-25 1960-01-13 Arbed Device for the injection of powdery or granulated products into a metal bath
FR1250496A (en) * 1959-11-16 1961-01-13 Arbed Device for injecting powdery or granular products in suspension in a gas or a gas mixture
FR1315021A (en) * 1960-12-07 1963-01-18 Bot Brassert Oxygen Technik Ag Method for implementing metallurgical processes, and device allowing the application of this method
AT238237B (en) * 1961-05-18 1965-01-25 Voest Ag Blowing device for performing metallurgical processes
DE1583240A1 (en) * 1967-09-30 1970-08-06 Demag Ag Method and device for producing steel in the converter
FR2322202A1 (en) * 1975-08-29 1977-03-25 Siderurgie Fse Inst Rech Steel refining by oxygen lancing and bottom blowing - for improved quality steel of various grades
GB1586762A (en) * 1976-05-28 1981-03-25 British Steel Corp Metal refining method and apparatus
US4195985A (en) * 1977-12-10 1980-04-01 Eisenwerk-Gesellschaft Maximilianshutte Mbh. Method of improvement of the heat-balance in the refining of steel
LU78906A1 (en) * 1978-01-19 1979-09-06 Arbed METHOD AND DEVICE FOR REFINING A METAL BATH
AU8474782A (en) * 1981-06-19 1982-12-23 British Steel Corp. Refining of steel from pig iron

Also Published As

Publication number Publication date
EP0081448B1 (en) 1986-09-10
FI71769B (en) 1986-10-31
FI71769C (en) 1987-02-09
ZA828160B (en) 1983-08-31
NO156377C (en) 1987-09-09
PT75439B (en) 1985-01-03
ES8402021A1 (en) 1984-01-01
PT75439A (en) 1982-09-01
AU554800B2 (en) 1986-09-04
NO824070L (en) 1983-06-06
LU83814A1 (en) 1983-09-01
JPS58144409A (en) 1983-08-27
AU9110182A (en) 1983-06-09
FI822922A0 (en) 1982-08-23
ATE22118T1 (en) 1986-09-15
CA1199504A (en) 1986-01-21
ES517913A0 (en) 1984-01-01
DE3273188D1 (en) 1986-10-16
FI822922L (en) 1983-06-05
EP0081448A1 (en) 1983-06-15
KR890001442B1 (en) 1989-05-03
KR840001635A (en) 1984-05-16
BR8206381A (en) 1983-09-27
MX157546A (en) 1988-11-30

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