EP0773306B1 - Acier inoxydable ferritique utilisable pour la production de laine d'acier - Google Patents
Acier inoxydable ferritique utilisable pour la production de laine d'acier Download PDFInfo
- Publication number
- EP0773306B1 EP0773306B1 EP96402088A EP96402088A EP0773306B1 EP 0773306 B1 EP0773306 B1 EP 0773306B1 EP 96402088 A EP96402088 A EP 96402088A EP 96402088 A EP96402088 A EP 96402088A EP 0773306 B1 EP0773306 B1 EP 0773306B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- calcium
- wool
- wire
- oxygen
- 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.)
- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 100
- 239000010959 steel Substances 0.000 title claims abstract description 100
- 210000002268 wool Anatomy 0.000 title claims abstract description 35
- 239000011575 calcium Substances 0.000 claims abstract description 51
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 32
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 16
- 239000011651 chromium Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000005864 Sulphur Substances 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims description 20
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 239000011572 manganese Substances 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 239000010955 niobium Substances 0.000 claims description 6
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- 229910001678 gehlenite Inorganic materials 0.000 claims description 3
- 229910052882 wollastonite Inorganic materials 0.000 claims description 3
- 239000010456 wollastonite Substances 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 239000012535 impurity Substances 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 9
- 238000003754 machining Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 229910052661 anorthite Inorganic materials 0.000 description 2
- -1 chromium carbides Chemical class 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- 229910000915 Free machining steel Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011155 quantitative monitoring Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12431—Foil or filament smaller than 6 mils
Definitions
- the running speed of the wire on the tools which corresponds to a cutting speed, is around 30 meters per minute for shaving of stainless steel wire and 50 meters per minute for shaving mild steel wire.
- the shavings that form the wool are driven forward of the installation where they are wound on a sleeve.
- the invention also relates to a yarn for the production of wool of steel, wire obtained by drawing and which contains type inclusions anorthite and / or pseudo-wollastonite and / or gehlenite and / or tridymite.
- Figure 2 is a diagram, in perspective, of a winding forming a lower layer and an upper layer of an installation.
- Each of the layers 3 moves on cutting tools 5 called combs, which produce 6 chips constituting the fibers of steel wool.
- the speed of travel of the wire 2 between the cylinders 4, which corresponds to the cutting speed of tools 5, is between 30 and 50 meters per minute, speed which must remain relatively low for avoid overheating of fine steel wool chips 6.
- the wire being subjected to the shaving operation in the direction of its length it is the width of the inclusions that must be considered, the length should have little influence on the ability to shave.
- a wire with elongated inclusions which is confirmed by examples of embodiments which follow.
- the quality of wool according to the criteria listed above is defined, on monitoring sheets, by type qualifiers: recommended, not recommended, rejected.
- the steel according to the invention may also contain titanium, tantalum, zirconium, niobium which improve resistance to oxidation.
- the introduction of molybdenum into the composition of the steel improves the corrosion resistance and heat resistance.
- the mechanical properties of steel ensure good quality of the steel wool fiber.
- the steel is suitable for machining of the shaving type at low cutting speed.
- carbon is an element which tends to stabilize the austenitic phase compared to the ferritic phase.
- this element is very slightly soluble in ferrite at room temperature. Given the high value of carbon diffusion coefficient in the matrix of the centered cubic type of ferrite, it follows that unless the concentration of this element is lowered below very low contents, it is very difficult to limit precipitation of chromium carbides at room temperature.
- Table 1 shows 6 steels, three of which are reference steels, steels A, B, C, being steels according to the invention.
- steel B steel C carbon% 0.040 0.038 0.037 0.042 0.036 0.039.
- the comparison between the reference steels 1, 2 and 3, presented above and steels A, B, C, according to the invention shows that the naturally obtained inclusions, after production of the reference and its form in the form of wire for shaving, are of great width. In addition, they are by nature hard and abrasive.
- the inclusions contained in the shaving wire according to the invention are elongated, their width is significantly smaller than the inclusions contained in reference steels. This lengthening of the inclusions reflects a low flow constraint of said inclusions and therefore a reduced hardness compared to that of reference steels.
- the invention does not consist in introducing into the steel a quantity inclusions of a certain type but consists in the development of a steel containing inclusions inherent in its preparation, the inclusions reduced in number being, according to the invention, inclusions of lime aluminosilicates.
- the invention consists mainly of a modification of the nature of the residual oxide inclusions, without seeking a increase in their density, so as to obtain after rolling and wire drawing, small width residual inclusions.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Fibers (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
- la quantité de freintes: les freintes sont les débris ou copeaux qui ne sont pas entraínés par la nappe de laine d'acier, copeaux trop courts qui tombent en dessous de l'installation et qui sont ramassés régulièrement par l'opérateur pour le suivi quantitatif et qualitatif de l'installation. Il est donc nécessaire d'obtenir lors du rasage, des copeaux longs qui ne se fragmentent pas.
- la qualité de la laine: Elle est appréciée au toucher et par son aspect visuel. Une laine de bonne qualité est homogène et douce. La présence de copeaux épais due par exemple à l'usure d'outils lui donne un aspect hétérogène et une consistance moins agréable. La surveillance de l'opérateur est primordiale car à tout moment, il peut modifier la pression des outils sur les nappes de fils.
- carbone ≤ 0,2%,
- silicium ≤ 2%;
- manganèse ≤ 2%,
- 11% ≤ chrome ≤ 30%,
- nickel ≤ 1 %,
- soufre ≤ 0,030 %,
- calcium ≥ 15 10-4 %,
- oxygène ≥ 40 10-4 %,
0,2 ≤ Ca/O ≤ 0,7.
- l'acier a de préférence la composition pondérale suivante:
- carbone ≤ 0,08%,
- silicium ≤ 1 %;
- manganèse ≤ 2%,
- 15% ≤ chrome ≤ 19%,
- nickel ≤ 1%,
- soufre ≤ 0,030%,
- calcium ≥ 15 10-4 %,
- oxygène ≥ 40 10-4%,
0,2 ≤ Ca/O ≤ 0,7.
- l'acier a de préférence la composition pondérale suivante:
- carbone ≤ 0,1 %,
- silicium ≤ 1 %;
- manganèse ≤ 2%,
- 20% ≤ chrome ≤ 28%,
- nickel ≤ 1%,
- soufre ≤ 0,030%,
- calcium ≥ 15 10-4 %,
- oxygène ≥ 40 10-4%,
0,2 ≤ Ca/O ≤ 0,7.
- l'acier comprend dans sa composition pondérale:
- calcium ≥ 30 10-4 %,
- oxygène ≥70 10-4%,
- les teneurs en calcium et oxygène satisfaisont la relation suivante :0,3 ≤ Ca/O ≤ 0,6.
- la composition contient, en outre, moins de 3% de molybdène.
- la composition contient en outre moins de 1% des éléments titane, tantale, zirconium, niobium pris seuls ou en combinaison.
- carbone ≤ 0,2 %,
- silicium ≤ 2%;
- manganèse ≤ 2%,
- 11% ≤ chrome ≤ 30 %,
- nickel ≤ 1%,
- soufre ≤ 0,030%,
- calcium ≥ 15 10-4 %,
- oxygène ≥ 40 10-4%,
0,2 ≤ Ca/O ≤ 0,7, donne une laine d'acier de qualité améliorée tant du point de vue de l'aspect de la fibre que du point de vue productibilité.
Du point de vue de la composition, le carbone est un élément qui a tendance à stabiliser la phase austénitique par rapport à la phase ferritique. En outre cet élément est très peu soluble dans la ferrite à température ambiante. Compte tenu de la valeur élevée de coefficient de diffusion du carbone dans la matrice du type cubique centré de la ferrite, il en résulte qu'à moins de baisser la concentration de cet élément en dessous de teneurs très faibles, il est très difficile de limiter la précipitation de carbures de chrome, à température ambiante. En parallèle, ces carbures de chrome détournent l'utilisation du chrome et sont entourés de zones appauvries en chrome. Le matériau voit donc sa résistance à la corrosion dégradée. Il peut être préférable de baisser la teneur en carbone à moins de 0,08%.
Cependant, le carbone augmente les caractéristiques mécaniques de l'acier, et, pour certaines applications, la teneur en carbone peut atteindre 0,2%.
Le fait d'avoir de basses teneurs en calcium et oxygène, en respectant le rapport Ca/O permet d'obtenir un excellent comportement de l'acier au rasage. Il a été remarqué que la présence de plus de 30.10-4% de calcium et plus de 70.10-4% d'oxygène était également favorable. Il est ainsi possible d'éviter une désoxydation poussée au cours de l'élaboration de l'acier, à condition cependant d'avoir un rapport Ca/O compris entre 0,2 et 0,7.
Les aciers ayant de 15 à 19% de chrome sont largement utilisée et donnent satisfaction dans des applications courantes. Ils peuvent être améliorés, notamment du point de vue de la corrosion inter granulaire, par l'ajout d'éléments tels que le titane, le niobium, le zirconium. Une autre voie d'amélioration, efficace mais coûteuse, consiste à augmenter la teneur en chrome. La résistance à la corrosion caverneuse et par piqûre est très améliorée quand les teneurs en chrome sont comprises entre 20 et 30%.
| acier ref 1 | acier ref 2 | acier ref 3 | acier A | acier B | acier C | |
| carbone % | 0,040 | 0,038 | 0,037 | 0,042 | 0,036 | 0,039. |
| - silicium % | 0,37 | 0,36 | 0,45 | 0,38 | 0,36 | 0,39 |
| - manganèse % | 0,39 | 0,41 | 0,32 | 0,37 | 0,40 | 0,35 |
| - nickel % | 0,21 | 0,028 | 0,42 | 0,31 | 0,24 | 0,17 |
| - chrome % | 16,4 | 16,4 | 16,4 | 16,3 | 16,4 | 16,3 |
| - molybdène % | 0,94 | 0,76 | 0,6 | 0,93 | 0,72 | 0,81 |
| - cuivre % | 0,09 | 0,30 | 0,15 | 0,27 | 0,10 | 0,08 |
| - azote 10-4% | 45 | 58 | 42 | 53 | 39 | 48 |
| - soufre 10-4% | 131 | 182 | 192 | 172 | 105 | 121 |
| - calcium 10-4 % | <2 | <2 | 54 | 24 | 16 | 55 |
| - oxygène 10-4% | 65 | 45 | 75 | 85 | 51 | 120 |
| - Ca/O | 0 | 0 | 0,72 | 0,28 | 0,31 | 0,46 |
| acier ref 1 | acier ref 2 | acier ref 3 | acier A | acier B | acier C | |
| Rm (MPa) | 966 | 1045 | 1070 | 1021 | 960 | 1015 |
| Rp0,2 (MPa) | 860 | 948 | 800 | 839 | 880 | 754 |
| Z % | 62 | 65 | 36 | 64 | 40 | 35 |
| Inclusions oxydes largeur (µm) | Nature des oxydes majoritaires. | |
| acier ref 1 | 5 à 15 | Al2O3-SiO2-CrO3-MnO + Al2O3-MgO |
| acier ref 2 | 5 à 15 | Al2O3-MgO |
| acier ref 3 | 3 à 8 ( globulaires ) | CaO-Al2O3-SiO2 |
| acier A | <à 2 | Al2O3-SiO2-CaO |
| acier B | <à 2 | Al2O3-SiO2-CaO |
| acier C | <à 2 | Al2O3-SiO2-CaO |
| Poids au mètre pour | ép. usure | Aspect | Appréciation | ||||
| 1h | 3h | 5h | 8h | résid peigne | laine | ||
| acier ref 1 | 90 | 92 | 95 | 100 | 75/80 Mauvais | mauvais | à rejeter |
| acier ref 2 | 100 | 105 | 106 | 115 | 70/75 Mauvais | moyen | déconseillé |
| acier ref 3 | 110 | 112 | 113 | 118 | 69/72 Mauvais | moyen | déconseillé |
| acier A | 145 | 147 | 149 | 150 | 65/68 Normal | Bon | recommandé |
| acier B | 130 | 132 | 135 | 137 | 70/72 Normal | Bon | recommandé |
| acier C | 151 | 152 | 152 | 154 | 45/50 Bon | bon | recommandé |
Claims (10)
- Acier inoxydable ferritique utilisable pour la production de laine d'acier caractérisé en ce que sa composition pondérale est la suivante:la teneur en calcium et oxygène satisfaisant la relation suivante :carbone ≤ 0,2 %,silicium ≤ 2%;manganèse ≤ 2%,11% ≤ chrome ≤ 30%,nickel ≤ 1%,soufre ≤ 0,030%,calcium ≥ 15 10-4 %,oxygène ≥ 40 10-4%,
0,2 ≤ Ca/O ≤ 0,7,
éventuellement moins de 3% de molybdène, et moins de 1% des éléments titane, tantale, zirconium, niobium pris seuls ou en combinaison,
le reste étant du fer et des impuretés inévitables. - Acier selon la revendication 1 caractérisée en la composition pondérale suivante:la teneur en calcium et oxygène satisfaisant la relation suivante :carbone ≤ 0,08%,silicium ≤ 1 %;manganèse ≤ 2 2%,15% ≤ chrome ≤ 19%,nickel ≤ 1%,soufre ≤ 0,030%,calcium ≥ 15 10-4 %,oxygène ≥ 40 10-4%,
0,2 ≤ Ca/O ≤ 0,7. - Acier selon la revendication 1 caractérisée en la composition pondérale suivante:la teneur en calcium et oxygène satisfaisant la relation suivante :carbone ≤ 0,1%,silicium ≤ 1 %;manganèse ≤ 2 2%,20% ≤ chrome ≤ 28%,nickel ≤ 1 %,soufre ≤ 0,030%,calcium ≥ 15 10-4 %,oxygène ≥ 40 10-4%,
0,2 ≤ Ca/O ≤ 0,7. - Acier selon l'une des revendicaions 1 à 3 caractérisé en ce qu'il comprend dans sa composition pondérale:calcium ≥ 30 10-4 %,oxygène ≥ 70 10-4%,
- Acier selon les revendications 1 à 4 caractérisé en ce que les teneurs en calcium et oxygène satisfaisont la relation suivante : 0,3 ≤ Ca/O ≤ 0,6.
- Acier selon les revendications 1 à 5 caractérisé en ce que la composition contient en outre moins de 3% de molybdène.
- Acier selon les revendications 1 à 6 caractérisé en ce que la composition contient en outre moins de 1% des éléments titane, tantale, zirconium, niobium pris seuls ou en combinaison.
- Fil d'acier pour la production de laine d'acier caractérisé en ce qu'il est obtenu par le tréfilage de l'acier selon les revendications 1 à 7.
- Fil d'acier selon la revendication 8 caractérisé en ce qu'il contient des inclusions de type anorthite et/ou pseudo-wollastonite et/ou gehlénite et/ou tridymite.
- Laine d'acier réalisée par rasage caractérisée en ce qu'elle est obtenue par utilisation de l'acier selon les revendications 1 à 7 mis sous forme de fil selon les revendications 8 et 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9512976 | 1995-11-03 | ||
| FR9512976A FR2740783B1 (fr) | 1995-11-03 | 1995-11-03 | Acier inoxydable ferritique utilisable pour la production de laine d'acier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0773306A1 EP0773306A1 (fr) | 1997-05-14 |
| EP0773306B1 true EP0773306B1 (fr) | 2000-12-20 |
Family
ID=9484188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96402088A Expired - Lifetime EP0773306B1 (fr) | 1995-11-03 | 1996-10-01 | Acier inoxydable ferritique utilisable pour la production de laine d'acier |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5795411A (fr) |
| EP (1) | EP0773306B1 (fr) |
| CN (1) | CN1066206C (fr) |
| AT (1) | ATE198221T1 (fr) |
| CA (1) | CA2188505C (fr) |
| DE (1) | DE69611277T2 (fr) |
| ES (1) | ES2153943T3 (fr) |
| FR (1) | FR2740783B1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058906A (zh) * | 2017-02-21 | 2017-08-18 | 山西太钢不锈钢股份有限公司 | 不锈钢、圆珠笔头用不锈钢线材及其制备方法 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2811683B1 (fr) * | 2000-07-12 | 2002-08-30 | Ugine Savoie Imphy | Acier inoxydable ferritique utilisable pour des pieces ferromagnetiques |
| FR2832734B1 (fr) * | 2001-11-26 | 2004-10-08 | Usinor | Acier inoxydable ferritique au soufre, utilisable pour des pieces ferromagnetiques |
| US7842434B2 (en) * | 2005-06-15 | 2010-11-30 | Ati Properties, Inc. | Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells |
| US8158057B2 (en) * | 2005-06-15 | 2012-04-17 | Ati Properties, Inc. | Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells |
| US7981561B2 (en) * | 2005-06-15 | 2011-07-19 | Ati Properties, Inc. | Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells |
| US20080096042A1 (en) * | 2004-10-15 | 2008-04-24 | Universita' Degli Studi Di Milano | Process For The Preparation Of Metallic Wools With A Controlled Degree Of Surface Oxidation And Fibres Deriving From Them: Products Obtained, And Their Use As Supports To Obtain Metaalic Core Composite Materials For A Variety Of Applications |
| UA111115C2 (uk) | 2012-04-02 | 2016-03-25 | Ейкей Стіл Пропертіс, Інк. | Рентабельна феритна нержавіюча сталь |
| JP6308869B2 (ja) * | 2014-05-27 | 2018-04-11 | 新日鐵住金ステンレス株式会社 | 成形性及び耐孔食性に優れたフェライト系ステンレス鋼線及びその製造方法 |
| CN104290048B (zh) * | 2014-09-26 | 2017-12-26 | 湖北瑞特威钢棉有限公司 | 含皂钢丝棉块成型机 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1350837A (en) * | 1971-06-24 | 1974-04-24 | Bekaert Sa Nv | Stainless steel wool |
| DE2951812A1 (de) * | 1978-12-25 | 1980-07-10 | Daido Steel Co Ltd | Automatenstahl |
| DE3018537A1 (de) * | 1979-05-17 | 1980-11-27 | Daido Steel Co Ltd | Kontrollierte einschluesse enthaltender automatenstahl und verfahren zu seiner herstellung |
| FR2648477B1 (fr) * | 1989-06-16 | 1993-04-30 | Ugine Savoie Sa | Acier inoxydable austenitique resulfure a usinabilite amelioree |
| JP3312401B2 (ja) * | 1992-11-04 | 2002-08-05 | 大同特殊鋼株式会社 | カルシウム快削ステンレス鋼 |
| FR2706489B1 (fr) * | 1993-06-14 | 1995-09-01 | Ugine Savoie Sa | Acier inoxydable martensitique à usinabilité améliorée. |
| FR2720410B1 (fr) * | 1994-05-31 | 1996-06-28 | Ugine Savoie Sa | Acier inoxydable ferritique à usinabilité améliorée. |
-
1995
- 1995-11-03 FR FR9512976A patent/FR2740783B1/fr not_active Expired - Fee Related
-
1996
- 1996-10-01 ES ES96402088T patent/ES2153943T3/es not_active Expired - Lifetime
- 1996-10-01 DE DE69611277T patent/DE69611277T2/de not_active Expired - Lifetime
- 1996-10-01 EP EP96402088A patent/EP0773306B1/fr not_active Expired - Lifetime
- 1996-10-01 AT AT96402088T patent/ATE198221T1/de not_active IP Right Cessation
- 1996-10-22 CA CA002188505A patent/CA2188505C/fr not_active Expired - Fee Related
- 1996-10-30 CN CN96121948.3A patent/CN1066206C/zh not_active Expired - Fee Related
- 1996-11-04 US US08/743,152 patent/US5795411A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058906A (zh) * | 2017-02-21 | 2017-08-18 | 山西太钢不锈钢股份有限公司 | 不锈钢、圆珠笔头用不锈钢线材及其制备方法 |
| CN107058906B (zh) * | 2017-02-21 | 2018-11-16 | 山西太钢不锈钢股份有限公司 | 不锈钢、圆珠笔头用不锈钢线材及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE198221T1 (de) | 2001-01-15 |
| CN1161381A (zh) | 1997-10-08 |
| DE69611277D1 (de) | 2001-01-25 |
| FR2740783A1 (fr) | 1997-05-09 |
| ES2153943T3 (es) | 2001-03-16 |
| EP0773306A1 (fr) | 1997-05-14 |
| US5795411A (en) | 1998-08-18 |
| FR2740783B1 (fr) | 1998-03-06 |
| DE69611277T2 (de) | 2001-07-12 |
| CA2188505A1 (fr) | 1997-05-04 |
| CA2188505C (fr) | 2003-12-09 |
| CN1066206C (zh) | 2001-05-23 |
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