EP1639145A1 - Produits inoculants contenant du bismuth et des terres rares - Google Patents
Produits inoculants contenant du bismuth et des terres raresInfo
- Publication number
- EP1639145A1 EP1639145A1 EP04742720A EP04742720A EP1639145A1 EP 1639145 A1 EP1639145 A1 EP 1639145A1 EP 04742720 A EP04742720 A EP 04742720A EP 04742720 A EP04742720 A EP 04742720A EP 1639145 A1 EP1639145 A1 EP 1639145A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- mixture according
- inoculating
- calcium
- less
- 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
- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 25
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000002054 inoculum Substances 0.000 title claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 57
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 54
- 239000000956 alloy Substances 0.000 claims abstract description 54
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 32
- 239000011575 calcium Substances 0.000 claims abstract description 25
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 23
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 8
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- -1 Si / Fe> 2 Chemical compound 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-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
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 238000011081 inoculation Methods 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 23
- 229910002804 graphite Inorganic materials 0.000 description 21
- 239000010439 graphite Substances 0.000 description 21
- 229910000805 Pig iron Inorganic materials 0.000 description 9
- 229910001060 Gray iron Inorganic materials 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 229910001567 cementite Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910005347 FeSi Inorganic materials 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 238000003921 particle size analysis Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/20—Measures not previously mentioned for influencing the grain structure or texture; Selection of compositions therefor
-
- 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
- C21C1/10—Making spheroidal graphite cast-iron
-
- 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
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Definitions
- the invention relates to the treatment in the liquid state of cast irons intended for the manufacture of thin parts for which it is desired to obtain a structure free of iron carbides, and more particularly inoculating products based on ferro-silicon and containing bismuth, lead and / or antimony, as well as rare earths.
- Cast iron is a well-known iron-carbon alloy widely used for the production of molded parts. It is known that in order to obtain good mechanical properties on these parts, it is necessary ultimately to obtain an iron + graphite structure while avoiding as much as possible the formation of iron carbides of Fe 3 C type which weaken the alloy.
- the graphite present in the cast iron parts can be presented either in lamellar form (gray cast iron or cast iron with lamellar graphite called cast iron GL), or in the form of spheroids (cast iron with spheroidal graphite called cast iron GS).
- Gray cast iron is the oldest known and used for the manufacture of molded parts; given its low resilience due to the presence of lamellar graphite, gray cast iron has application only for parts with little mechanical stress, while spheroidal graphite cast iron found many applications for its discovery in 1945 highly stressed mechanical parts.
- the technical objective of the smelter is to favor the appearance of graphite during the solidification of liquid cast iron, and it is well known that, the more the solidification of cast iron is fast, the more the carbon contained in the cast iron risks to appear in the form of iron carbide Fe 3 C. This explains the difficulty encountered to manufacture thin parts containing little iron carbide.
- the liquid iron is subjected to a so-called inoculation treatment by the addition of a ferro-alloy, generally ferro-silicon, which, when dissolved, will cause local and ephemeral appearance of seeds of crystallization, favoring the precipitation of so-called primary graphite, because it is the first solid to appear in the liquid medium.
- a ferro-alloy generally ferro-silicon
- the effectiveness of the inoculants can be assessed either through the quenching thickness evaluated on a standard quenching test piece, or through the density of the crystallization seeds created in liquid iron.
- This density can be evaluated by subjecting the cast iron to a nodulization treatment so that, during solidification, the graphite appears in nodular form; in this way the micrographic examination of the cast iron parts obtained will give a density of nodules corresponding to the density of germs.
- alloys are particularly well suited to the treatment of cast irons intended for the manufacture of parts comprising thin parts; however, there is an increase in the density of the graphite nodules in the thin areas, which adversely affects the structural homogeneity of the parts.
- alloys of the “Spherix” type doped with the addition of magnesium do indeed have a particle size stability greater than that of alloys without magnesium.
- some cases of poor particle size over time have been encountered without any specific cause identified.
- the object of the invention is to remedy these drawbacks and to provide inoculating products having increased efficiency and improved particle size stability over time compared to the products of the prior art.
- Subject of the invention is to remedy these drawbacks and to provide inoculating products having increased efficiency and improved particle size stability over time compared to the products of the prior art.
- the subject of the invention is an inoculating mixture for the treatment of liquid pig iron consisting of 5 to 75% by weight of at least one type A alloy based on ferro-silicon such as Si / Fe> 2, containing 0.005 at 3% by weight of rare earths, from 0.005 to 3% of bismuth, lead and / or antimony, and less than 3% of calcium, with a ratio (Bi + Pb + Sb) / TR between 0.9 and 2 , 2, and for 25 to 95% of at least one type B alloy based on silicon, or ferro-silicon such as Si / Fe> 2, containing calcium at a content such as the total calcium content of the mixture is between 0.3 to 3%.
- ferro-silicon such as Si / Fe> 2
- Alloy A can also contain magnesium at a content between 0.3 and 3%.
- the bismuth content of alloy A is preferably between 0.2 and 0.6%, and its calcium content is preferably less than 2%, and more preferably 0.8%.
- the lanthanum represents more than 70% of the total mass of the rare earths of the alloy A.
- the alloy B preferably contains less than 0.01% of bismuth, lead and / or antimony.
- the total calcium of the mixture is preferably supplied by alloy B for a proportion of between 75 and 95%, and even more preferably between 80 and 90%.
- the total bismuth content of the mixture is preferably between 0.05 and 0.3%, its total rare earth content between 0.04 and 0.15%, and its total oxygen content less than 0.2 %.
- Alloy B can also be silico-calcium with a silicon content of between 54 and 68% and a calcium content of between 25 and 42%.
- the mixture can be in the form of grains of size less than 7 mm, or of powder with a particle size less than 2.2 mm.
- this type of mixture has been confirmed to be an even more effective solution than that described in EP 0816522, because it makes it possible to guarantee particle size resistance over time.
- a particle size degradation defined as the mass fraction of less than 200 ⁇ m appearing in 24 h in contact with water, of less than 10%, and preferably less than 5%, and this even after a storage time. more than a year, which the alloy of the prior art absolutely does not allow.
- the inoculating mixture gives lower quench thicknesses than the alloy, and makes it possible to avoid an excessive increase in the density of the graphite nodules in the sections thinner parts.
- This pig iron was inoculated with a jet using the inoculating alloy B used at a dose of 1 kg per ton of pig iron. It was used to make a 24 mm thick plate with 6 and 2 mm thick fins in the perpendicular position.
- the density of graphite nodules observed is 487 / mm 2 at the heart of the 24 mm thick zone, 1076 / mrn 2 at the heart of the 6 mm thick zone, and 1283 / mm 2 at the heart of the 2 mm thick area.
- the previous example was redone by inoculating the cast iron with a jet using the inoculant alloy D used at a dose of 1 kg per ton of cast iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 304 / rnm 2 at the heart of the 24 mm thick zone, 631 / mm 2 at the heart of the 6 mm thick zone, and 742 / mm 2 at the heart of the 2 mm thick area.
- Example 3 The test of Example 3 was repeated under the same conditions, but the inoculation of the jet iron was carried out by means of the inoculating alloy G used at the dose of 1 kg per tonne of iron. This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 209 / mm 2 at the heart of the 24 mm thick zone, 405 / mm 2 at the heart of the 6 mm thick zone, and 470 / mm 2 at the heart of the 2 mm thick area.
- the efficiency of the inoculant decreases rapidly with its bismuth content, and that the structure of the cast iron obtained is always much finer without the thin sections.
- Example 3 The test of Example 3 was repeated under the same conditions, but the inoculation of the jet iron was carried out by means of the inoculating mixture K used at the dose of 1 kg per tonne of iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 343 / mm 2 at the heart of the 24 mm thick zone, 705 / mm 2 at the heart of the 6 mm thick zone, and 828 / mm 2 at the heart of the 2 mm thick area.
- Example 4 The test of Example 4 was repeated under the same conditions, but the inoculation of the jet iron was carried out using the inoculating mixture L used at the dose of 1 kg per tonne of iron. This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 269 / mm 2 at the heart of the 24 mm thick zone, 518 / mm 2 at the heart of the 6 mm thick zone, and 600 / mm 2 at the heart of the 2 mm thick area.
- Example 5 The test of Example 5 was repeated under the same conditions, but the inoculation of the jet iron was carried out by means of the inoculating mixture M used at the dose of 1 kg per tonne of iron.
- Example 6 The test of Example 6 was repeated by replacing the inoculating mixture L with the inoculating mixture M used at the dose of 1 kg per ton of pig iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 234 / mm 2 at the heart of the 24 mm thick zone, 425 / mm 2 at the heart of the 6 mm thick zone, and 486 / mm 2 at the heart of the 2 mm thick area.
- the comparison of Examples 3, 4 and 5, and of Examples 6, 7 and 8 is given in Table 3:
- Example 7 The test of Example 7 was repeated using the inoculating mixture L at a dose of 1.5 kg per ton of pig iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 309 / mm 2 at the heart of the 24 mm thick zone, 536 / mm 2 at the heart of the 6 mm thick zone, and 607 / mm 2 at the heart of the 2 mm thick area.
- Example 8 The test of Example 8 was repeated using the inoculating mixture M at a dose of 1.5 kg per ton of pig iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 266 / mm 2 at the heart of the 24 mm thick zone, 440 / mm 2 at the heart of the 6 mm thick zone, and 491 / mm 2 at the heart of the 2 mm thick area.
- Example 9 The test of Example 9 was repeated using the inoculant mixture N at a dose of 1.5 kg per ton of pig iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 247 / mm 2 at the heart of the 24 mm thick zone, 383 / mm 2 at the heart of the 6 mm thick zone, and 422 / mm 2 at the heart of the 2 mm thick area.
- Example 10 The test of Example 10 was repeated using the inoculant mixture O at a dose of 1.5 kg per ton of pig iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 273 / mm 2 at the heart of the 24 mm thick zone, 457 / mm 2 at the heart of the 6 mm thick zone, and 517 / mm 2 at the heart of the 2 mm thick area.
- Example 11 The test of Example 11 was repeated using the inoculating mixture P at a dose of 1.5 kg per ton of pig iron.
- This liquid cast iron was used to manufacture a 24 mm thick plate having perpendicular positions of 6 and 2 mm thick fins.
- the density of graphite nodules observed is 260 / mm 2 at the heart of the 24 mm thick zone, 410 / mm 2 at the heart of the 6 mm thick zone, and 459 / mm 2 at the heart of the 2 mm thick area.
- Examples 12 and 13 show that by combining several inoculants in a mixture, including a bismuth inoculant even in small proportions, it is possible to significantly reduce the structural disparities obtained in cast iron parts having very different sections in thickness.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0306033A FR2855186B1 (fr) | 2003-05-20 | 2003-05-20 | Produits inoculants contenant du bismuth et des terres rares |
| PCT/FR2004/001167 WO2004104252A1 (fr) | 2003-05-20 | 2004-05-13 | Produits inoculants contenant du bismuth et des terres rares |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1639145A1 true EP1639145A1 (fr) | 2006-03-29 |
| EP1639145B1 EP1639145B1 (fr) | 2010-08-11 |
Family
ID=33396594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04742720A Expired - Lifetime EP1639145B1 (fr) | 2003-05-20 | 2004-05-13 | Produits inoculants contenant du bismuth et des terres rares |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US7569092B2 (fr) |
| EP (1) | EP1639145B1 (fr) |
| JP (1) | JP4680913B2 (fr) |
| KR (1) | KR101145328B1 (fr) |
| CN (1) | CN100408710C (fr) |
| AR (1) | AR044351A1 (fr) |
| AT (1) | ATE477346T1 (fr) |
| BR (1) | BRPI0410414B1 (fr) |
| CA (1) | CA2526268C (fr) |
| DE (1) | DE602004028618D1 (fr) |
| FR (1) | FR2855186B1 (fr) |
| MX (1) | MXPA05012492A (fr) |
| NO (1) | NO341920B1 (fr) |
| WO (1) | WO2004104252A1 (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2997962B1 (fr) * | 2012-11-14 | 2015-04-10 | Ferropem | Alliage inoculant pour pieces epaisses en fonte |
| CN103484749B (zh) * | 2013-09-02 | 2015-08-12 | 宁波康发铸造有限公司 | 一种球墨铸铁孕育剂及其制备方法和在冶炼球墨铸铁中的应用 |
| CN105316562B (zh) * | 2014-08-04 | 2018-01-23 | 陆丰市东煊实业有限公司 | 一种使用稀土废料制备钢铁添加剂的方法 |
| NO349041B1 (en) | 2017-12-29 | 2025-09-08 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO349037B1 (en) | 2017-12-29 | 2025-09-01 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO346252B1 (en) | 2017-12-29 | 2022-05-09 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO349312B1 (en) | 2017-12-29 | 2025-12-01 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO349310B1 (en) | 2017-12-29 | 2025-12-01 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| CN111850222A (zh) * | 2020-03-09 | 2020-10-30 | 山东常林铸业有限公司 | 一种使用含锑孕育剂生产多路阀体铸件的新型熔炼工艺 |
| CN115216577B (zh) * | 2022-05-30 | 2025-03-21 | 上海铸米科技有限公司 | 一种改善铸铁件韧性的孕育剂及该孕育剂的制备方法 |
| FR3141698B1 (fr) | 2022-11-09 | 2024-11-08 | Saint Gobain Pam Batiment | Objet tubulaire en fonte à graphite lamellaire, élément de tuyauterie et procédé de fabrication correspondants |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2421948A1 (fr) * | 1978-04-06 | 1979-11-02 | Pro Chi Met Produits Chim Meta | Procede de preparation d'alliages ferreux sensiblement exempts de cerium, permettant d'ameliorer notamment leurs proprietes mecaniques grace a l'emploi de lanthane, et alliages ferreux obtenus par ce procede |
| JPS5735607A (en) * | 1980-08-11 | 1982-02-26 | Toshiba Corp | Inoculant for cast iron |
| FR2511044A1 (fr) * | 1981-08-04 | 1983-02-11 | Nobel Bozel | Ferro-alliage pour le traitement d'inoculation des fontes a graphite spheroidal |
| JPS5943843A (ja) * | 1982-09-06 | 1984-03-12 | Kusaka Reametaru Kenkyusho:Kk | 添加合金 |
| DE3409550C1 (de) * | 1984-03-15 | 1985-06-20 | Ingenieurbüro Dr.-Ing. Karl Ableidinger & Dr.-Ing. Hans Heyer, Zürich | Impflegierung zur Herstellung von sphaerolithischem Gusseisen |
| JPH0247213A (ja) * | 1988-08-09 | 1990-02-16 | Kimura Chuzosho:Kk | 鋳鉄用接種剤 |
| FR2635534B1 (fr) * | 1988-08-12 | 1992-04-03 | Pechiney Electrometallurgie | Procede d'obtention de fontes a graphite spheroidal |
| DE3924558C1 (fr) * | 1989-07-25 | 1990-11-22 | Skw Trostberg Ag, 8223 Trostberg, De | |
| DE4124159C2 (de) * | 1991-07-20 | 1996-08-14 | Sueddeutsche Kalkstickstoff | Vorlegierung zur Behandlung von Gußeisenschmelzen |
| JPH0880505A (ja) * | 1994-09-13 | 1996-03-26 | Mitsui Toatsu Chem Inc | 突板化粧板の製造方法 |
| FR2750143B1 (fr) * | 1996-06-25 | 1998-08-14 | Pechiney Electrometallurgie | Ferroalliage pour l'inoculation des fontes a graphite spheroidal |
| NO306169B1 (no) * | 1997-12-08 | 1999-09-27 | Elkem Materials | Ympemiddel for stöpejern og fremgangsmÕte for fremstilling av ympemiddel |
| NL1014394C2 (nl) * | 2000-02-16 | 2001-08-20 | Corus Technology B V | Werkwijze voor het vervaardigen van nodulair gietijzer, en gietstuk vervaardigd met deze werkwijze. |
| FR2839082B1 (fr) * | 2002-04-29 | 2004-06-04 | Pechiney Electrometallurgie | Alliage inoculant anti microretassure pour traitement des fontes de moulage |
-
2003
- 2003-05-20 FR FR0306033A patent/FR2855186B1/fr not_active Expired - Lifetime
-
2004
- 2004-05-13 BR BRPI0410414-5A patent/BRPI0410414B1/pt not_active IP Right Cessation
- 2004-05-13 MX MXPA05012492A patent/MXPA05012492A/es unknown
- 2004-05-13 CA CA2526268A patent/CA2526268C/fr not_active Expired - Lifetime
- 2004-05-13 JP JP2006530348A patent/JP4680913B2/ja not_active Expired - Lifetime
- 2004-05-13 WO PCT/FR2004/001167 patent/WO2004104252A1/fr not_active Ceased
- 2004-05-13 KR KR1020057022257A patent/KR101145328B1/ko not_active Expired - Fee Related
- 2004-05-13 AT AT04742720T patent/ATE477346T1/de not_active IP Right Cessation
- 2004-05-13 US US10/555,786 patent/US7569092B2/en not_active Expired - Lifetime
- 2004-05-13 CN CNB2004800129642A patent/CN100408710C/zh not_active Expired - Fee Related
- 2004-05-13 DE DE602004028618T patent/DE602004028618D1/de not_active Expired - Lifetime
- 2004-05-13 EP EP04742720A patent/EP1639145B1/fr not_active Expired - Lifetime
- 2004-05-14 AR ARP040101668A patent/AR044351A1/es active IP Right Grant
-
2005
- 2005-12-19 NO NO20056038A patent/NO341920B1/no unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004104252A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE602004028618D1 (de) | 2010-09-23 |
| MXPA05012492A (es) | 2006-01-30 |
| CA2526268C (fr) | 2011-07-12 |
| JP2007506000A (ja) | 2007-03-15 |
| BRPI0410414A (pt) | 2006-05-30 |
| CN100408710C (zh) | 2008-08-06 |
| FR2855186B1 (fr) | 2005-06-24 |
| FR2855186A1 (fr) | 2004-11-26 |
| NO20056038L (no) | 2005-12-19 |
| US7569092B2 (en) | 2009-08-04 |
| CA2526268A1 (fr) | 2004-12-02 |
| CN1833041A (zh) | 2006-09-13 |
| NO341920B1 (no) | 2018-02-19 |
| KR101145328B1 (ko) | 2012-05-14 |
| KR20060009952A (ko) | 2006-02-01 |
| ATE477346T1 (de) | 2010-08-15 |
| BRPI0410414B1 (pt) | 2012-12-11 |
| WO2004104252A1 (fr) | 2004-12-02 |
| EP1639145B1 (fr) | 2010-08-11 |
| JP4680913B2 (ja) | 2011-05-11 |
| US20060113055A1 (en) | 2006-06-01 |
| AR044351A1 (es) | 2005-09-07 |
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