EP1563105B1 - Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue - Google Patents
Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue Download PDFInfo
- Publication number
- EP1563105B1 EP1563105B1 EP03786006A EP03786006A EP1563105B1 EP 1563105 B1 EP1563105 B1 EP 1563105B1 EP 03786006 A EP03786006 A EP 03786006A EP 03786006 A EP03786006 A EP 03786006A EP 1563105 B1 EP1563105 B1 EP 1563105B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- optionally
- steel
- process according
- temperature
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 39
- 239000010959 steel Substances 0.000 title claims description 39
- 238000005299 abrasion Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 12
- 239000010936 titanium Substances 0.000 claims description 36
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 22
- 229910052719 titanium Inorganic materials 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 229910000734 martensite Inorganic materials 0.000 claims description 12
- 150000001247 metal acetylides Chemical class 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 229910001566 austenite Inorganic materials 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- 229910052714 tellurium Inorganic materials 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052711 selenium Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052745 lead Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims 2
- 229910052726 zirconium Inorganic materials 0.000 description 20
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 239000010955 niobium Substances 0.000 description 9
- 230000009466 transformation Effects 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 8
- 239000011572 manganese Substances 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 229910052750 molybdenum Inorganic materials 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- -1 titanium carbides Chemical class 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 240000008042 Zea mays Species 0.000 description 5
- 229910001563 bainite Inorganic materials 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 239000011669 selenium Substances 0.000 description 5
- 230000000717 retained effect Effects 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 229940082150 encore Drugs 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 241001080024 Telles Species 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 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 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 150000004771 selenides Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000004772 tellurides Chemical class 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
Definitions
- the present invention relates to an abrasion-resistant steel and its method of manufacture.
- High abrasion resistant steels with a hardness of about 600 Brinell are known. These steels contain from 0.4% to 0.6% of carbon and from 0.5% to 3% of at least one alloying element such as manganese, nickel, chromium and molybdenum and are soaked to have a completely martensitic structure. But these steels are very difficult to weld and cut. To remedy these drawbacks, it has been proposed, particularly in EP 0 739 993 to use for the same purposes, a less hard steel, whose carbon content is about 0.27% and having a quenched structure containing a significant amount of residual austenite. But these steels are still difficult to weld or cut.
- the object of the present invention is to overcome these disadvantages, by proposing an abrasion-resistant steel sheet whose abrasion resistance is comparable to that of known steels but whose weldability and thermal cutting ability is better.
- quenching may be followed by tempering at a temperature below 350 ° C, and preferably below 250 ° C.
- the invention also relates to a part, in particular a sheet, obtained in particular by this method, the steel having a martensitic or martensito-bainitic structure, said structure containing from 5% to 20% retained austenite, as well as carbides.
- the thickness of the sheet may be between 2 mm and 150 mm and its flatness is characterized by an arrow less than or equal to 12 mm / m and preferably less than 5 mm / m.
- the carbon, titanium, zirconium and nitrogen contents must be such that: C - Ti / 4 - Zr / 8 + 7xN / 8> 0.095%
- C * represents the free carbon content after precipitation of the titanium and zirconium carbides, taking into account the formation of titanium and zirconium nitrides.
- This free carbon content C * must be greater than 0.095%, and preferably ⁇ 0.12%, to have a martensite having a minimum hardness. The lower this content, the better the welding and thermal cutting ability.
- the micrographic structure of the steel consists of martensite or bainite or a mixture of these two structures, and from 5% to 20% retained austenite.
- This structure further comprises large titanium or zirconium carbides formed at high temperature, or even carbides of niobium, tantalum or vanadium.
- the inventors have found that the effectiveness of large carbides for improving the abrasion resistance could be obelated by the premature loosening thereof and that this loosening could be avoided by the presence of metastable austenite which is transformed under the effect of abrasion phenomena.
- the transformation of the metastable austenite is by swelling, this transformation in the abraded undercoat increases the resistance to carburetion and thus improves abrasion resistance.
- the steel is made, it flows in the form of slab or ingot.
- the slab or slug is hot-rolled to obtain a sheet which is subjected to a heat treatment which makes it possible at the same time to obtain the desired structure and a good flatness without subsequent planing or with limited planing.
- the heat treatment can be carried out directly in the hot rolling or carried out later, and possibly after a cold planing or half-hot.
- an expansion treatment such as tempering, can be carried out at a temperature of less than or equal to 350 ° C, and preferably less than 250 ° C.
- steel sheets identified A to C according to the invention and D to E according to the prior art were produced.
- the chemical compositions of the steels, expressed in 10 -3 % by weight, as well as the hardness and a wear resistance index Rus, are reported in Table 1.
- the wear resistance is measured by the weight loss of a prismatic specimen rotated in a tank containing calibrated granules of quartzite for 5 hours.
- the Rus index of a steel is equal to 100 times the ratio of the wear resistance of the steel in question and the wear resistance of a reference steel (steel D).
- All sheets are 27 mm thick and are hardened after austenitization at 900 ° C.
- the sheets according to the invention have a martensito-bainitic self-regenerating structure containing from 5% to 20% retained austenite and large titanium carbides, whereas the sheets given for comparison have a completely martensitic structure.
- the comparison of the wear resistances and the hardnesses shows that, although being very substantially less hard than the sheets given for comparison, the sheets according to the invention have a slightly better resistance to wear.
- the comparison of the free carbons shows that the good abrasion resistance of the sheets according to the invention is obtained with very significantly lower free carbons, which leads to significantly better welding or thermal cutting abilities than for the sheets according to the invention. the prior art.
- the deformation after cooling, without planing, for steels according to the invention A to C is about 5 mm / m and 16 mm / m for steels D and E given for comparison.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200331112T SI1563105T1 (sl) | 2002-11-19 | 2003-11-13 | Postopek za izdelavo plocevine iz jekla, odpornega proti abraziji, in dobljena plocevina |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0214426A FR2847272B1 (fr) | 2002-11-19 | 2002-11-19 | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
| FR0214426 | 2002-11-19 | ||
| PCT/FR2003/003358 WO2004048619A1 (fr) | 2002-11-19 | 2003-11-13 | Procede pour fabriquer une tole en acier resistant a l'abrasion et tôle obtenue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1563105A1 EP1563105A1 (fr) | 2005-08-17 |
| EP1563105B1 true EP1563105B1 (fr) | 2008-01-02 |
Family
ID=32187697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03786006A Expired - Lifetime EP1563105B1 (fr) | 2002-11-19 | 2003-11-13 | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US7713362B2 (ja) |
| EP (1) | EP1563105B1 (ja) |
| JP (1) | JP4535876B2 (ja) |
| KR (1) | KR101010571B1 (ja) |
| CN (1) | CN100348738C (ja) |
| AR (1) | AR042073A1 (ja) |
| AT (1) | ATE382716T1 (ja) |
| AU (1) | AU2003295014B2 (ja) |
| BR (1) | BR0315693B1 (ja) |
| CA (1) | CA2506349C (ja) |
| DE (1) | DE60318478T2 (ja) |
| ES (1) | ES2298605T3 (ja) |
| FR (1) | FR2847272B1 (ja) |
| PE (1) | PE20040484A1 (ja) |
| PL (1) | PL202086B1 (ja) |
| RU (1) | RU2326179C2 (ja) |
| UA (1) | UA78624C2 (ja) |
| WO (1) | WO2004048619A1 (ja) |
| ZA (1) | ZA200504150B (ja) |
Families Citing this family (59)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2847270B1 (fr) * | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
| JP4894297B2 (ja) * | 2006-02-28 | 2012-03-14 | Ｊｆｅスチール株式会社 | 耐摩耗鋼板 |
| JP4894296B2 (ja) * | 2006-02-28 | 2012-03-14 | Ｊｆｅスチール株式会社 | 耐摩耗鋼板 |
| WO2007129676A1 (ja) * | 2006-05-10 | 2007-11-15 | Sumitomo Metal Industries, Ltd. | 熱間プレス成形鋼板部材およびその製造方法 |
| JP4899874B2 (ja) * | 2007-01-12 | 2012-03-21 | Ｊｆｅスチール株式会社 | 加工性に優れた耐摩耗鋼板およびその製造方法 |
| JP5380892B2 (ja) * | 2007-05-29 | 2014-01-08 | Ｊｆｅスチール株式会社 | 加工性に優れた耐磨耗鋼板およびその製造方法 |
| FR2919593B1 (fr) * | 2007-07-30 | 2009-11-20 | Sidel Participations | Dispositif de formation de lots d'objets sensiblement parallelepipediques circulant sur une bande de convoyage |
| CN101240399B (zh) * | 2008-03-05 | 2010-06-02 | 钢铁研究总院 | 一种低铬低成本热作模具钢 |
| US8137483B2 (en) * | 2008-05-20 | 2012-03-20 | Fedchun Vladimir A | Method of making a low cost, high strength, high toughness, martensitic steel |
| JP2010085716A (ja) | 2008-09-30 | 2010-04-15 | Fujinon Corp | レンズ組立体及び撮像装置 |
| CN101775545B (zh) * | 2009-01-14 | 2011-10-12 | 宝山钢铁股份有限公司 | 一种低合金高强度高韧性耐磨钢板及其制造方法 |
| US10189099B2 (en) | 2010-04-22 | 2019-01-29 | Milwaukee Electric Tool Corporation | Saw Blade |
| US8689667B2 (en) | 2010-04-22 | 2014-04-08 | Milwaukee Electric Tool Corporation | Saw blade |
| JP2012031511A (ja) * | 2010-06-30 | 2012-02-16 | Jfe Steel Corp | 多層盛溶接部靭性と耐遅れ破壊特性に優れた耐磨耗鋼板 |
| JP5866820B2 (ja) * | 2010-06-30 | 2016-02-24 | Ｊｆｅスチール株式会社 | 溶接部靭性および耐遅れ破壊特性に優れた耐磨耗鋼板 |
| RU2458177C1 (ru) * | 2010-12-03 | 2012-08-10 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Прокат полосовой из борсодержащей марганцовистой стали |
| RU2460823C1 (ru) * | 2011-02-08 | 2012-09-10 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли (Минпромторг России) | Динамически стойкая сталь и способ производства листов из нее |
| USD841417S1 (en) | 2011-04-22 | 2019-02-26 | Milwaukee Electric Tool Corporation | Saw blade |
| CN102367558B (zh) * | 2011-10-24 | 2016-05-04 | 山东双轮股份有限公司 | 一种泵用含硼低合金耐磨钢 |
| CN102560272B (zh) * | 2011-11-25 | 2014-01-22 | 宝山钢铁股份有限公司 | 一种超高强度耐磨钢板及其制造方法 |
| CN103898420A (zh) * | 2012-12-25 | 2014-07-02 | 隆英(金坛)特钢科技有限公司 | 耐磨钢板及其制造方法 |
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| US3883347A (en) * | 1971-02-16 | 1975-05-13 | Aikoh Co | Slag-forming agent for steelmaking |
| US4170497A (en) * | 1977-08-24 | 1979-10-09 | The Regents Of The University Of California | High strength, tough alloy steel |
| JPH0441616A (ja) * | 1990-06-06 | 1992-02-12 | Nkk Corp | 低硬度で且つ耐摩耗性および曲げ加工性に優れた耐摩耗鋼の製造方法 |
| US5595614A (en) * | 1995-01-24 | 1997-01-21 | Caterpillar Inc. | Deep hardening boron steel article having improved fracture toughness and wear characteristics |
| FR2733516B1 (fr) * | 1995-04-27 | 1997-05-30 | Creusot Loire | Acier et procede pour la fabrication de pieces a haute resistance a l'abrasion |
| JPH09249935A (ja) * | 1996-03-13 | 1997-09-22 | Sumitomo Metal Ind Ltd | 耐硫化物応力割れ性に優れる高強度鋼材とその製造方法 |
| CN1182142A (zh) * | 1996-11-07 | 1998-05-20 | 鞍山钢铁集团公司 | 一种耐磨铸钢 |
| JP3975852B2 (ja) * | 2001-10-25 | 2007-09-12 | Ｊｆｅスチール株式会社 | 加工性に優れた鋼管およびその製造方法 |
| FR2847270B1 (fr) * | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
| FR2847271B1 (fr) * | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
-
2002
- 2002-11-19 FR FR0214426A patent/FR2847272B1/fr not_active Expired - Lifetime
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2003
- 2003-11-13 US US10/535,305 patent/US7713362B2/en active Active
- 2003-11-13 JP JP2004554594A patent/JP4535876B2/ja not_active Expired - Lifetime
- 2003-11-13 EP EP03786006A patent/EP1563105B1/fr not_active Expired - Lifetime
- 2003-11-13 AU AU2003295014A patent/AU2003295014B2/en not_active Expired
- 2003-11-13 AT AT03786006T patent/ATE382716T1/de active
- 2003-11-13 RU RU2005119205/02A patent/RU2326179C2/ru active
- 2003-11-13 WO PCT/FR2003/003358 patent/WO2004048619A1/fr active IP Right Grant
- 2003-11-13 CA CA2506349A patent/CA2506349C/fr not_active Expired - Lifetime
- 2003-11-13 UA UAA200505980A patent/UA78624C2/uk unknown
- 2003-11-13 ES ES03786006T patent/ES2298605T3/es not_active Expired - Lifetime
- 2003-11-13 CN CNB2003801036284A patent/CN100348738C/zh not_active Expired - Lifetime
- 2003-11-13 DE DE60318478T patent/DE60318478T2/de not_active Expired - Lifetime
- 2003-11-13 BR BRPI0315693-1A patent/BR0315693B1/pt active IP Right Grant
- 2003-11-13 PL PL375543A patent/PL202086B1/pl unknown
- 2003-11-13 KR KR1020057009055A patent/KR101010571B1/ko active IP Right Grant
- 2003-11-18 AR ARP030104259A patent/AR042073A1/es unknown
- 2003-11-18 PE PE2003001167A patent/PE20040484A1/es not_active Application Discontinuation
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Also Published As
| Publication number | Publication date |
|---|---|
| FR2847272A1 (fr) | 2004-05-21 |
| EP1563105A1 (fr) | 2005-08-17 |
| DE60318478T2 (de) | 2008-12-11 |
| JP2006506527A (ja) | 2006-02-23 |
| AU2003295014B2 (en) | 2009-03-12 |
| RU2005119205A (ru) | 2006-05-10 |
| AR042073A1 (es) | 2005-06-08 |
| CN100348738C (zh) | 2007-11-14 |
| CN1714159A (zh) | 2005-12-28 |
| US7713362B2 (en) | 2010-05-11 |
| BR0315693B1 (pt) | 2011-06-28 |
| FR2847272B1 (fr) | 2004-12-24 |
| KR101010571B1 (ko) | 2011-01-25 |
| PL202086B1 (pl) | 2009-05-29 |
| AU2003295014A1 (en) | 2004-06-18 |
| WO2004048619A1 (fr) | 2004-06-10 |
| PE20040484A1 (es) | 2004-08-18 |
| CA2506349C (fr) | 2012-04-24 |
| WO2004048619A8 (fr) | 2005-05-26 |
| PL375543A1 (en) | 2005-11-28 |
| CA2506349A1 (fr) | 2004-06-10 |
| RU2326179C2 (ru) | 2008-06-10 |
| KR20050083903A (ko) | 2005-08-26 |
| ZA200504150B (en) | 2006-09-27 |
| DE60318478D1 (de) | 2008-02-14 |
| ES2298605T3 (es) | 2008-05-16 |
| JP4535876B2 (ja) | 2010-09-01 |
| US20060162826A1 (en) | 2006-07-27 |
| UA78624C2 (en) | 2007-04-10 |
| ATE382716T1 (de) | 2008-01-15 |
| BR0315693A (pt) | 2005-09-20 |
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