EP0233872A1 - Verfahren zum behandeln, insbesondere zum feinen von metallen und legierungen. - Google Patents
Verfahren zum behandeln, insbesondere zum feinen von metallen und legierungen.Info
- Publication number
- EP0233872A1 EP0233872A1 EP85905413A EP85905413A EP0233872A1 EP 0233872 A1 EP0233872 A1 EP 0233872A1 EP 85905413 A EP85905413 A EP 85905413A EP 85905413 A EP85905413 A EP 85905413A EP 0233872 A1 EP0233872 A1 EP 0233872A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- adjuvant
- nickel
- calcium
- refining
- Prior art date
- 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.)
- Granted
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 34
- 239000000956 alloy Substances 0.000 title claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 title claims abstract description 27
- 238000007670 refining Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 15
- 150000002739 metals Chemical class 0.000 title claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000008187 granular material Substances 0.000 claims abstract description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 14
- 239000011701 zinc Substances 0.000 claims abstract description 14
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 239000006023 eutectic alloy Substances 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 40
- 229910052759 nickel Inorganic materials 0.000 claims description 16
- 239000002671 adjuvant Substances 0.000 claims description 14
- 230000005496 eutectics Effects 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 7
- 229910000882 Ca alloy Inorganic materials 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 235000000396 iron Nutrition 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 4
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 2
- 150000001342 alkaline earth metals Chemical class 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- -1 ferrous metals Chemical class 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000011575 calcium Substances 0.000 description 30
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 23
- 229910052791 calcium Inorganic materials 0.000 description 23
- 230000000694 effects Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229910001278 Sr alloy Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004503 fine granule Substances 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
- C21C1/025—Agents used for dephosphorising or desulfurising
-
- 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
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
Definitions
- the present invention relates to a process for treating metals and alloys, more particularly but not exclusively metals and ferrous alloys, in particular those having a high melting point, for example greater than 1000 ° C.
- a refining aid is incorporated into the molten metal.
- these additives have an important role in reducing the oxygen content.
- the steelmaker perfectly controls the flowability of the metal, through the calibrated pouring orifices.
- the adjuvant also makes it possible to regulate the level of elements such as sulfur, phosphorus under certain conditions of use. A favorable action on the number and morphology of inclusions is obtained.
- the addition of calcium inside the liquid mass can be carried out using methods of introducing additives in the form of granules.
- the alloy is in the form of granules.
- This refining linkage can be binary, ternary or multi-component.
- the refining aid is an alloy in the form of granules, each granule having a substantially spherical shape.
- the alloy consists of one or more metals chosen from beryllium, magnesium, calcium, strontium, barium and zinc and one or more metals whose composition is located in an area of the starting phase diagram alkaline earth or pure zinc towards the first eutectic point.
- first eutectic zone we will speak of "first eutectic zone” since it corresponds to the lowering of the melting point in the direction of a binary or multi-component eutectic. It is therefore an alloy located in the eutectic zone, including the eutectic itself, which will be the refining alloy.
- an ally of an eutectic zone or an eutectic are in particular aluminum, copper, nickel , bismuth, lead, tin, lanthanum and silicon, as well as alloyed with another partner at least zinc and magnesium. Alloys with silver and gold are also suitable, but are of little industrial interest given their cost.
- alloys of calcium or magnesium with aluminum, copper or nickel As al ternary bindings, mention will be made, for example, of calcium, nickel, aluminum and calcium, magnesium, aluminum alloys. It has been found quite unexpectedly that the presence of one of the metals of the above category leads to a very significant lowering of the boiling, during the introduction of the processing aid. This is explained by a significant drop in the vapor pressure of the alloyed adjuvant compared to a pure adjuvant. and by the perfect control of the flow of this adjuvant during its introduction into the metal to be treated, thanks to its substantially spherical shape.
- x AT represents the atomic fraction of alkaline earth or zinc
- x 1 represents the atomic fraction of the chosen element "i”, alloyed with alkaline earth or zinc.
- the vapor pressure of the alkaline earth chosen (or zinc) taken separately is as low as possible; the metals chosen for the alloy form defined compounds with free enthalpy of very negative formation with which at the eutectic temperature the eutectic alloy is in equilibrium.
- the addition of the bonding in granules is done by conventional techniques of deep introduction into the molten metal bath, the granules being substantially spherical, calibrated, constant and homogeneous. Their micro-structure is closed and their diameter is between 0.1 and 2.5 mm, preferably between 0.2 and 2.5 mm. This finely divided form is free of fine granule dust 1 ommetry; this gives the product complete safety in use; thus any danger of explosion or self-ignition due to the pyrophoricity of the reactive alloys is eliminated.
- the invention also brings great advantages to the n i v water of the product i on of these granular materials. Indeed, in the case of their granulation in the liquid phase, it is pos-iible to work at lower temperature and to make serious energy savings.
- the range of steels which benefit from being refined according to the invention using granules of alkaline-earth alloys and the abovementioned metals are in particular steels with a very low content of residual elements such as carbon and silicon , for example the range of steels for deep drawing.
- the adjuvant granules are also very suitable for refining other ranges of steels such as stainless steels.
- non-ferrous metals and aluminum for example by granules strontium and aluminum alloys, optionally comprising lithium.
- the calcium alloy with nickel can contain up to 16 atomic% of nickel, that is to say approximately 20% by weight.
- the calcium melts around 850 ° C. and forms with nickel an eutectic alloy melting at approximately 605 ° C., corresponding precisely to 16%. atomic mentioned above.
- the eutectic zone is therefore the zone situated to the left of the diagram and extending up to 16 atomic% of nickel alloyed with calcium, including the eutectic itself.
- compositions of between 5% (fusion around 800 ° C.) and 16 atomic% of nickel are chosen.
- the Ca / Ni bond can be added to the steel at a rate of 150 ppm per minute, an addition rate that cannot be kept with pure calcium.
- the steel to be refined must have the following composition:
- the ternary Ca / Mg / Al alloy of Example 6 is used in particular for the treatment of lead, owing to its low melting point and to an increased dissolution rate. We note ⁇ ue ce. alloy finds great interest in debismutting lead.
- the Ca / Cu alloy of Example 7 can be used for the treatment of bronze, given its low melting point and the reduced bubbling it causes.
- the Ca / La bonding in Example 8 can be used for the treatment of steels and cast iron, where, in addition to the reduced bubbling which it brings about, it allows very good desulfurization and very fine control of the graphitization.
- Example 9 The Mg / Ni bonding of Example 9 can be used for the treatment of stainless steels, its melting point being particularly low. It causes reduced coaling, in the same way as the Ca / Ni alloys of examples 1 to 3.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Peptides Or Proteins (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85905413T ATE56475T1 (de) | 1984-11-05 | 1985-10-30 | Verfahren zum behandeln, insbesondere zum feinen von metallen und legierungen. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8416971 | 1984-11-05 | ||
| FR8416971 | 1984-11-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0233872A1 true EP0233872A1 (de) | 1987-09-02 |
| EP0233872B1 EP0233872B1 (de) | 1990-09-12 |
Family
ID=9309363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85905413A Expired - Lifetime EP0233872B1 (de) | 1984-11-05 | 1985-10-30 | Verfahren zum behandeln, insbesondere zum feinen von metallen und legierungen |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4652299A (de) |
| EP (1) | EP0233872B1 (de) |
| JP (1) | JP2571561B2 (de) |
| KR (1) | KR860700360A (de) |
| AT (1) | ATE56475T1 (de) |
| AU (1) | AU5062685A (de) |
| CA (1) | CA1262636A (de) |
| DE (1) | DE3579700D1 (de) |
| DK (1) | DK317586A (de) |
| ES (1) | ES8701850A1 (de) |
| NO (1) | NO862699L (de) |
| PT (1) | PT81432B (de) |
| WO (1) | WO1986002949A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735771A (en) * | 1986-12-03 | 1988-04-05 | Chrysler Motors Corporation | Method of preparing oxidation resistant iron base alloy compositions |
| US4999158A (en) * | 1986-12-03 | 1991-03-12 | Chrysler Corporation | Oxidation resistant iron base alloy compositions |
| US4891183A (en) * | 1986-12-03 | 1990-01-02 | Chrysler Motors Corporation | Method of preparing alloy compositions |
| US4808376A (en) * | 1987-08-10 | 1989-02-28 | The Doe Run Company | Method of alloying aluminum and calcium into lead |
| EP0366655B1 (de) * | 1988-04-04 | 1996-02-28 | Chrysler Motors Corporation | Bestandteile oxidationsbeständiger eisenlegierungen |
| EP0531963B1 (de) * | 1991-09-10 | 1996-12-04 | Nippon Steel Corporation | Verfahren zum Kontrollieren des Aufheizens eines Legierungsofens zum Herstellen von heiss-tauchmetallisiertem und legiertem Stahlband |
| US6770366B2 (en) * | 2000-06-28 | 2004-08-03 | Affival S.A. | Cored wire for introducing additives into a molten metal bath |
| FR2871477B1 (fr) * | 2004-06-10 | 2006-09-29 | Affival Sa Sa | Fil fourre |
| FR3006695A1 (fr) | 2013-06-10 | 2014-12-12 | Mourad Toumi | Procede et dispositif de traitement d'un metal ou d'un alliage metallique en fusion par une substance additive |
| EP3919633A4 (de) * | 2019-01-31 | 2023-06-28 | Tokyo Rope Manufacturing Co., Ltd. | Wärmetauschverfahren, wärmetauschermedium, wärmetauschervorrichtung, patentierungsverfahren und kohlenstoffstahldraht |
| JP2022103567A (ja) * | 2020-12-28 | 2022-07-08 | 日立金属株式会社 | 荒引線の製造方法および荒引線の製造装置 |
| CN113234889A (zh) * | 2021-03-31 | 2021-08-10 | 南京钢铁股份有限公司 | 一种改善轴承钢中碳化物形态的方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE187414C (de) * | ||||
| US1683086A (en) * | 1927-06-16 | 1928-09-04 | Augustus F Meehan | Cast iron and the method of making same |
| DE1220617B (de) * | 1958-02-03 | 1966-07-07 | Res Inst Iron Steel | Vorlegierung fuer die Herstellung von feinkoernigen Staehlen |
| US2971833A (en) * | 1958-04-09 | 1961-02-14 | Le Magnesium Thermique Soc | Process of manufacturing magnesium |
| AT327265B (de) * | 1970-05-29 | 1976-01-26 | Lenin Kohaszati Muvek | Verfahren mit besonderer desoxydation zur herstellung von gut zerspanbaren karbonstahlen |
| US3865582A (en) * | 1973-07-06 | 1975-02-11 | Int Nickel Co | Alloy additive |
| US4014684A (en) * | 1973-11-27 | 1977-03-29 | Foseco International Limited | Manufacture of steel |
| US4014686A (en) * | 1976-02-23 | 1977-03-29 | United States Steel Corporation | Deoxidation of open type steels for improved formability |
| US4137072A (en) * | 1976-12-01 | 1979-01-30 | Toyo Soda Manufacturing Co., Ltd. | Additive for use in refining iron |
| JPS5575857A (en) * | 1978-12-04 | 1980-06-07 | Sueddeutsche Kalkstickstoff | Molten metal treatment method during casting |
| JPS5597419A (en) * | 1979-01-18 | 1980-07-24 | Hitachi Cable Ltd | Additive for iron and steel |
| DE2948636A1 (de) * | 1979-12-04 | 1981-06-11 | Metallgesellschaft Ag, 6000 Frankfurt | Drahtfoermiges mittel zum behandeln von metallschmelzen |
| FR2471827A1 (fr) | 1979-12-21 | 1981-06-26 | Extramet Sa | Dispositif pour la production de granules metalliques uniformes |
| JPS56127724A (en) * | 1980-03-07 | 1981-10-06 | Komazawa Kinzoku Kogyo Kk | Deacidification of molten steel |
| JPS56127723A (en) * | 1980-03-10 | 1981-10-06 | Japan Steel Works Ltd:The | Removal of impurities of high chromium molten steel |
| US4286984A (en) * | 1980-04-03 | 1981-09-01 | Luyckx Leon A | Compositions and methods of production of alloy for treatment of liquid metals |
| JPS5767146A (en) * | 1980-10-11 | 1982-04-23 | Osaka Tokushu Gokin Kk | Introduction method for antimony into cast iron |
| US4462823A (en) * | 1982-12-11 | 1984-07-31 | Foseco International Limited | Treatment agents for molten steel |
| JPS6046311A (ja) * | 1983-08-25 | 1985-03-13 | Nippon Steel Corp | 低融点金属含有溶鋼の製造方法 |
-
1985
- 1985-10-30 JP JP60504798A patent/JP2571561B2/ja not_active Expired - Lifetime
- 1985-10-30 EP EP85905413A patent/EP0233872B1/de not_active Expired - Lifetime
- 1985-10-30 KR KR860700422A patent/KR860700360A/ko not_active Application Discontinuation
- 1985-10-30 WO PCT/FR1985/000307 patent/WO1986002949A1/fr active IP Right Grant
- 1985-10-30 AU AU50626/85A patent/AU5062685A/en not_active Abandoned
- 1985-10-30 AT AT85905413T patent/ATE56475T1/de active
- 1985-10-30 DE DE8585905413T patent/DE3579700D1/de not_active Expired - Lifetime
- 1985-11-04 CA CA000494552A patent/CA1262636A/fr not_active Expired
- 1985-11-05 PT PT81432A patent/PT81432B/pt unknown
- 1985-11-05 ES ES548533A patent/ES8701850A1/es not_active Expired
- 1985-11-05 US US06/799,346 patent/US4652299A/en not_active Expired - Lifetime
-
1986
- 1986-07-03 NO NO862699A patent/NO862699L/no unknown
- 1986-07-04 DK DK317586A patent/DK317586A/da not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8602949A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US4652299A (en) | 1987-03-24 |
| PT81432A (fr) | 1985-12-01 |
| DE3579700D1 (de) | 1990-10-18 |
| KR860700360A (ko) | 1986-10-06 |
| DK317586D0 (da) | 1986-07-04 |
| DK317586A (da) | 1986-07-04 |
| ES548533A0 (es) | 1987-01-01 |
| JPS62501081A (ja) | 1987-04-30 |
| ATE56475T1 (de) | 1990-09-15 |
| WO1986002949A1 (fr) | 1986-05-22 |
| NO862699D0 (no) | 1986-07-03 |
| ES8701850A1 (es) | 1987-01-01 |
| EP0233872B1 (de) | 1990-09-12 |
| CA1262636A (fr) | 1989-11-07 |
| AU5062685A (en) | 1986-06-03 |
| PT81432B (fr) | 1987-04-09 |
| NO862699L (no) | 1986-07-03 |
| JP2571561B2 (ja) | 1997-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0233872B1 (de) | Verfahren zum behandeln, insbesondere zum feinen von metallen und legierungen | |
| EP0123632B1 (de) | Verfahren zur Herstellung von Stählen mit hoher Zerspanbarkeit (Automatenstahl) | |
| WO1980002565A1 (fr) | Produit pour la desulfuration des fontes et aciers | |
| CA1227335A (fr) | Procede de traitement de l'acier par le calcium permettant d'obtenir une grande aptitude a la mise en forme a froid et une basse teneur en silicium | |
| EP0190089B1 (de) | Verfahren zum Behandeln von flüssigen Metallen mittels eines kalziumenthaltenden Fülldrahtes | |
| EP2252712B1 (de) | Neuartiger zusatz zur bearbeitung von sulfurisiertem stahl | |
| CA1191699A (fr) | Procede d'elimination d'impuretes metalliques dans le magnesium par injection d'un derive halogene de bore | |
| FR2514786A1 (fr) | Procede de debismuthage du plomb | |
| FR2487378A1 (fr) | Procede pour produire par aluminothermie du chrome et des alliages de chrome a faible teneur en azote | |
| EP0964069A1 (de) | Strontium-Vorlegierung mit verminderter Solidustemperatur und ihr Herstellungsverfahren | |
| BE514115A (de) | ||
| FR2576320A1 (fr) | Procede de traitement de metaux ferreux liquides par fil fourre contenant du calcium | |
| JPH02175853A (ja) | ガルバナイジング浴組成物 | |
| BE560483A (de) | ||
| RU2055906C1 (ru) | Порошковая проволока для обработки чугуна | |
| BE466001A (de) | ||
| BE1003182A4 (fr) | Procede de fabrication de l'acier d'usage courant. | |
| CH285853A (fr) | Procédé pour la fabrication de pièces en fonte grise à haute résistance mécanique et piéce obtenue par ce procédé. | |
| FR2687692A1 (fr) | Procede pour l'affinage de magnesium brut. | |
| BE501067A (de) | ||
| BE491337A (de) | ||
| FR2705688A1 (fr) | Procédé pour l'affinage de magnésium brut. | |
| BE549402A (de) | ||
| BE505228A (de) | ||
| CA2021221A1 (en) | Calcium alloys with improved grindability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19870428 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19880929 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19900912 Ref country code: NL Effective date: 19900912 Ref country code: AT Effective date: 19900912 |
|
| REF | Corresponds to: |
Ref document number: 56475 Country of ref document: AT Date of ref document: 19900915 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 3579700 Country of ref document: DE Date of ref document: 19901018 |
|
| ITF | It: translation for a ep patent filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19901031 Ref country code: CH Effective date: 19901031 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| ITTA | It: last paid annual fee | ||
| EPTA | Lu: last paid annual fee | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19981027 Year of fee payment: 14 Ref country code: BE Payment date: 19981027 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19981030 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19981105 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19981111 Year of fee payment: 14 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991030 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991030 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991031 |
|
| BERE | Be: lapsed |
Owner name: S.A. EXTRAMET INDUSTRIE Effective date: 19991031 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19991030 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000801 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |