EP0758407A1 - Cermet und verfahren zu seiner herstellung - Google Patents
Cermet und verfahren zu seiner herstellungInfo
- Publication number
- EP0758407A1 EP0758407A1 EP95913058A EP95913058A EP0758407A1 EP 0758407 A1 EP0758407 A1 EP 0758407A1 EP 95913058 A EP95913058 A EP 95913058A EP 95913058 A EP95913058 A EP 95913058A EP 0758407 A1 EP0758407 A1 EP 0758407A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mass
- cermet
- binder
- content
- core
- 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
- 239000011195 cermet Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 48
- 239000002344 surface layer Substances 0.000 claims abstract description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 38
- 238000005245 sintering Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 229910052758 niobium Inorganic materials 0.000 claims description 16
- 229910052721 tungsten Inorganic materials 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 229910052715 tantalum Inorganic materials 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 229910052750 molybdenum Inorganic materials 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 11
- 229910052720 vanadium Inorganic materials 0.000 claims description 10
- 230000035515 penetration Effects 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 150000001247 metal acetylides Chemical class 0.000 claims description 3
- 238000004452 microanalysis Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000005229 chemical vapour deposition Methods 0.000 claims 1
- 229910052735 hafnium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 description 16
- 239000010955 niobium Substances 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 7
- 239000012298 atmosphere Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001513 hot isostatic pressing Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical group [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002347 wear-protection layer Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 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
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052726 zirconium 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
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/04—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- 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
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Definitions
- the invention relates to a cermet with a hard material content of 95 to 75% by mass and 5 to 25% by mass binder as the remainder made of cobalt and / or nickel, the hard material hare consisting of carbonitrides with a cubic B1 crystal structure and 30 to 60 masses % Ti, 5 to 25 mass% W, 5 to 15 mass% Ta, of which up to 70 mass% can be replaced by Nb, 0 to 12 mass% Mo, 0 to 5 mass% V, 0 to 2 mass% Cr, 0 to
- the (C + N) content in the carbonitride phase is> 80 mol%
- the nitrogen content N / (C + N) is between 0.15 and 0.7 and in the binder phase up to
- the hard material phases essentially have a core-edge structure.
- the invention further relates to a method for producing such a cermet by mixing, grinding, granulating and pressing a starting mixture containing corresponding constituents and then sintering.
- EP 0 344 421 A1 proposes a cermet which should either have an average grain size of the hard material phase in the surface layer compared to a core with a penetration depth of 0.05 mm, which is between 0.8 to 1.2 times the average grain size of the hard material phase in the cermet core or in the same penetration depth relates to a binder phase which corresponds to 0.7 to 1.2 times the average binder content of the cermet core or in which the hardness in the aforementioned penetration depth is between 0.95 and 1 , l times the average hardness of the cermet core.
- the starting mixture is sintered after grinding, mixing and pre-pressing, in a first stage up to 1300 ° C.
- EP 0 368 336 B1 describes a cermet substrate with a hard surface layer in which the region with the maximum hardness is present at a depth between 5 ⁇ m and 50 ⁇ m from the substrate surface, and the substrate surface has a hardness of 20 to 90% of maximum hardness.
- the pre-pressed mixture is subjected to an initial temperature increase to 1100 ° C. in a vacuum, a subsequent temperature increase from 1100 ° C. to a temperature range between 1400 ° C. and 1500 ° C. in a nitrogen atmosphere and a final sintering in a vacuum .
- EP 0 374 358 B1 describes a process for producing a cermet with 7 to 20% by weight binder phase and a hard phase made from titanium carbide, titanium nitride and / or titanium carbonitride with 35 to 59% by weight Ti, 9 to 29% by weight. %, 0.4 to 3.5% by weight of Mo, 4 to 24% by weight of at least one metal composed of Ta, Nb, V and zirconium, 5.5 to 9.5% by weight of N 2 and 4 , 5 to 12 wt .-% C.
- the formulated mixed, dried and pre-pressed mass is sintered in such a way that the temperature is raised to 1350 ° C.
- the nitrogen atmosphere being adjusted to 1 Torr at 1350 ° C., the nitrogen partial pressure together is gradually increased with the temperature increase from 1350 ° C. to the sintering temperature, the nitrogen atmosphere being set to 5 torr at the sintering temperature.
- EP 0 492 059 A3 describes a cermet body, the hardness of which is not less than 1 mm higher than in the interior of the cermet, the binder content being in a layer thickness can be minimized from 0.5 to 3 ⁇ m compared to the core substrate.
- the cermet should have a hard material coating in a thickness of 0.5 to 20 ⁇ m made of carbides, nitrides, oxides and borides of titanium and Al2O3.
- a green compact is first heated to a temperature between 1100 ° C. and 1400 ° C. under vacuum, then nitrogen gas is admitted to a pressure at which the partial nitrogen pressure is between 5 and 10 Torr, so that the substrate surface is denatured.
- the sintering and the final cooling are carried out under a non-oxidizing atmosphere, such as a vacuum or an inert gas atmosphere.
- the body is coated using CVD or PVD.
- EP 0 499 223 A1 proposes to produce a high-viscosity cermet, the relative concentration of the binder in a 10 ⁇ m thick layer near the surface to 5 to 50% of the average mean content of binder in the cermet core and in the layer below it from 10 ⁇ m to 100 ⁇ m Penetration depth to set the binder content to 70 to 100% relative to the cerium core, compressive stresses of 30 kgf / mm 2 and more being present on the surface.
- the sintering is carried out under nitrogen gas at a constant pressure of 5 to 30 torr and the cooling under vacuum at a cooling rate of 10 to 20 ° C./min.
- EP 0 515 340 A3 describes a cermet with a zone near the surface enriched in binder.
- EP 0 519 895 A1 discloses a cermet with a three-layered edge zone, in which the first layer is rich in TiN to a depth of 50 ⁇ m, the next layer has a penetration depth of 50 to 150 ⁇ m with a binder enrichment and the next layer from 150 ⁇ m to 400 ⁇ m with a binder depletion relative to the inside of the cermet core.
- the sintered body becomes this in an atmosphere of N 2 and / or NH3, optionally in combination with CH 4 , CO, C0 2 at 1100 ° C to 1350 ° C for one to 25 hours under atmospheric pressure or a pressure above 1.1 bar.
- the cermets known from the prior art either have different binder contents on the surface, which can be recognized by their spotty appearance, or tend to adhere the binder to the sintered base, which leads to changes in the composition in the contact zone because of the reactions involved.
- Further disadvantages of the cermets known according to the prior art are a partially high surface roughness and, in the case of increased binder metal contents in the surface, poor adhesion of wear protection layers applied there. If there is an increased proportion of nickel in the surface, CVD coating is not possible at all.
- the disadvantages mentioned speak in particular against the use of the cermet as a cutting insert for machining.
- the cermet mentioned in claim 1 which, in contrast to the previously known cermets, can only be measured in a surface layer determined by a penetration depth of 0.01 to 3 ⁇ m, and can be measured by an energy-dispersive micro analysis on a measuring surface> (0, 5 x 0.5) mm 2 , the content of Co and / or Ni binder in relation to the underlying cermet core areas is ⁇ 90% by mass, one in each case in the cermet core on the one hand and in the surface layer on the other uniform binder metal distribution is present.
- the cermet is present in a homogeneous structure, which should not rule out the presence of core edge structures of the hard material phase.
- the 0.01 to 3 ⁇ m thick surface layer relative to the underlying cermet core has a binding content of cobalt and / or nickel which is less than 30% by mass, while the titanium content is 110 to 130%.
- the sum of the contents of tungsten, tantalum and any proportions of molybdenum, niobium, vanadium and / or chromium in the surface layer mentioned is 70 to 100 masses relative to the underlying cermet core areas -%.
- the core areas lying under the surface layer mentioned have at least essentially a hard material phase with a core edge structure.
- the hard material phase in the surface layer can only be present homogeneously or with the core edge structure intended for the core, and possibly also partially.
- the cermet has a zone immediately below the surface layer to a depth of at least 50 ⁇ m, maximum 600 ⁇ m, which has a porosity according to ISO4505 of ⁇ A02 and ⁇ B02 and in the underlying core ⁇ A08 and ⁇ B04 having.
- the further preferably low roughness depths R ⁇ ⁇ 6 ⁇ m or Rg ⁇ 5 ⁇ m have an effect.
- the hardness HV30 is preferably constant in the surface area.
- the cermet in the surface layer with a depth between 0.01 and 3 ⁇ m has a Co and / or Ni binder content ⁇ 90% by mass with a Ti content between 100% and 120% relative to the core area and the The sum of the contents of W, Ta and possibly Mo, Nb, V, Cr is 80 to 100% by mass.
- the cermet can have one or more wear protection layers which consist of carbides or nitrides of titanium and / or of Al 2 O 3 , preferably applied by the CVD process.
- the cermet described is preferably produced by the method set out in claim 10. Thereafter, a mixture containing the components determined according to claim 1 is ground, granulated and pre-pressed and then sintered, preferably in sintering furnaces with graphite heating conductors. After pressing, the green body is first heated up to the melting temperature of the binder phase under vacuum with a pressure ⁇ 10 -1 bar, then further heated up to the sintering temperature, which is between 1450 to 1530 ° C., where the temperature is 0.2 to Hold for 2 hours and then the body is cooled to 1200 ° C.
- the last heating, holding and cooling is carried out in a gas mixture of N 2 and CO with an N 2 / (N 2 + CO) ratio between 0.1 and 0.9 under an average pressure of 10% to 80% of the mean alternately in a period between 40 and 240 sec, preferably 40 to 180 sec.
- the N / (N 2 + C0) ratio is determined by the equation
- the procedure described above is to be understood in such a way that an average pressure value remains constant over the entire heating up process from the melting point of the binding phase, sintering and cooling to 1200 ° C., but the pressure fluctuates periodically around this average pressure value, in particular due to a uniform deflection higher and lower values.
- the fluctuation amplitude can be sinusoidal or sawtooth-shaped or have shapes derived therefrom.
- only the pressure fluctuations described lead to a thin, uniform influencing of the surface layer of the type described above.
- the sintered body can be subjected to hot isostatic pressing under argon at temperatures near the sintering temperature and pressures above 30 bar after the sintering. While the body produced without the subsequent hot isostatic pressing shows a significantly reduced binder content of less than 30% by mass in the surface layer up to a maximum penetration depth of 3 ⁇ m, the subsequently hot isostatically pressed body sometimes has higher binder contents, which, however, is still below 90%. relative to the binder content in the cermet core.
- cermet bodies are only subjected to sintering.
- the setting of the gas atmosphere during sintering can be seen from FIGS. 1 and 2. Show it Fig. 1 shows the linear relationship between the
- Fig. 2 shows the dependence of the setting of the middle
- the respective value x represents the relative nitrogen content in the cermet, namely the ratio N / (C + N) and the value y the setting of the gas mixture N 2 / (N 2 + CO).
- the limit values are predetermined by cermet nitrogen contents between 0.15 and 0.7, to which settings of the gas mixture of 0.1 and 0.9 are assigned. All the values in between can be taken from the graphical representation, fluctuations up or down of 10% are permitted. The same applies to the representation according to FIG. 2, where the ordinate y represents the mean pressure in bar and the abscissa represents the binder content x in mass%.
- the mean pressure to be set is 20 mbar, with a binder content of 5% by mass 6 mbar, with deviations from the mean value of up to 10% being permitted here as well.
- the pressures set in the sintering furnace then fluctuate around a constant mean pressure value, namely by alternating at least 10% upwards and downwards.
- step 3 with the proviso that no CO was blown in and the set N 2 pressure was constant at 20 mbar.
- Example 1 invention-moderator cermet equal
- the total binder content is 16.9% by mass.
- the starting mixture was, as is known from the prior art, ground, mixed and pre-pressed. The following process steps were then used:
- a comparative body was subjected to the same process steps 1, 2 and 4, process step 3, however, with the proviso that no CO was blown in and the N pressure was constantly 20 mbar.
- Example 4 cermet according to the invention
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Powder Metallurgy (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Golf Clubs (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4415454 | 1994-05-03 | ||
DE4415454 | 1994-05-03 | ||
DE4423451 | 1994-07-05 | ||
DE4423451A DE4423451A1 (de) | 1994-05-03 | 1994-07-05 | Cermet und Verfahren zu seiner Herstellung |
PCT/DE1995/000434 WO1995030030A1 (de) | 1994-05-03 | 1995-03-29 | Cermet und verfahren zu seiner herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0758407A1 true EP0758407A1 (de) | 1997-02-19 |
EP0758407B1 EP0758407B1 (de) | 1998-02-11 |
Family
ID=25936212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95913058A Expired - Lifetime EP0758407B1 (de) | 1994-05-03 | 1995-03-29 | Cermet und verfahren zu seiner herstellung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5856032A (de) |
EP (1) | EP0758407B1 (de) |
JP (1) | JPH09512308A (de) |
AT (1) | ATE163203T1 (de) |
ES (1) | ES2112053T3 (de) |
WO (1) | WO1995030030A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6017488A (en) | 1998-05-11 | 2000-01-25 | Sandvik Ab | Method for nitriding a titanium-based carbonitride alloy |
SE9701859D0 (sv) * | 1997-05-15 | 1997-05-15 | Sandvik Ab | Titanium based carbonitride alloy with nitrogen enriched surface zone |
SE511846C2 (sv) * | 1997-05-15 | 1999-12-06 | Sandvik Ab | Sätt att smältfassintra en titanbaserad karbonitridlegering |
SE512133C2 (sv) * | 1997-07-10 | 2000-01-31 | Sandvik Ab | Metod att framställa titanbaserade karbonitridlegeringar fria från bindefasytskikt |
JP2948803B1 (ja) * | 1998-03-31 | 1999-09-13 | 日本特殊陶業株式会社 | サーメット工具及びその製造方法 |
SE514053C2 (sv) * | 1999-05-03 | 2000-12-18 | Sandvik Ab | Metod för tillverkning Ti(C,N)-(Ti,Ta,W) (C,N)-Co legeringar för skärverktygstillämpningar |
SE525745C2 (sv) * | 2002-11-19 | 2005-04-19 | Sandvik Ab | Ti(C-(Ti,Nb,W)(C,N)-Co-legering för svarvskärtillämpningar för finbearbetning och medelfin bearbetning |
DE10342364A1 (de) * | 2003-09-12 | 2005-04-14 | Kennametal Widia Gmbh & Co.Kg | Hartmetall-oder Cermetkörper und Verfahren zu seiner Herstellung |
DE102008048967A1 (de) * | 2008-09-25 | 2010-04-01 | Kennametal Inc. | Hartmetallkörper und Verfahren zu dessen Herstellung |
US8834594B2 (en) | 2011-12-21 | 2014-09-16 | Kennametal Inc. | Cemented carbide body and applications thereof |
CN116162838B (zh) * | 2023-04-26 | 2023-06-30 | 崇义章源钨业股份有限公司 | 一种金属陶瓷及其制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61281835A (ja) * | 1985-06-07 | 1986-12-12 | Sumitomo Electric Ind Ltd | サ−メツトの焼結法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0643622B2 (ja) * | 1985-12-04 | 1994-06-08 | 住友電気工業株式会社 | 窒素含有サ−メツトの製造法 |
JPH01152228A (ja) * | 1987-12-10 | 1989-06-14 | Sumitomo Electric Ind Ltd | 窒素含有サーメットの製造法 |
JPH02131803A (ja) * | 1988-11-11 | 1990-05-21 | Mitsubishi Metal Corp | 耐欠損性のすぐれた耐摩耗性サーメット製切削工具 |
SE467257B (sv) * | 1989-06-26 | 1992-06-22 | Sandvik Ab | Sintrad titanbaserad karbonitridlegering med duplexa strukturer |
SE500047C2 (sv) * | 1991-05-24 | 1994-03-28 | Sandvik Ab | Sintrad karbonitridlegering med höglegerad bindefas samt sätt att framställa denna |
SE9101865D0 (sv) * | 1991-06-17 | 1991-06-17 | Sandvik Ab | Titanbaserad karbonitridlegering med slitstarkt ytskikt |
SE9201928D0 (sv) * | 1992-06-22 | 1992-06-22 | Sandvik Ab | Sintered extremely fine-grained titanium based carbonitride alloy with improved toughness and/or wear resistance |
SE470481B (sv) * | 1992-09-30 | 1994-05-24 | Sandvik Ab | Sintrad titanbaserad karbonitridlegering med hårdämnen med kärna-bård-struktur och sätt att tillverka denna |
JPH1152228A (ja) * | 1997-08-05 | 1999-02-26 | Nikon Corp | 広角レンズ |
-
1995
- 1995-03-29 US US08/716,340 patent/US5856032A/en not_active Expired - Fee Related
- 1995-03-29 JP JP7527925A patent/JPH09512308A/ja active Pending
- 1995-03-29 EP EP95913058A patent/EP0758407B1/de not_active Expired - Lifetime
- 1995-03-29 ES ES95913058T patent/ES2112053T3/es not_active Expired - Lifetime
- 1995-03-29 AT AT95913058T patent/ATE163203T1/de not_active IP Right Cessation
- 1995-03-29 WO PCT/DE1995/000434 patent/WO1995030030A1/de active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61281835A (ja) * | 1985-06-07 | 1986-12-12 | Sumitomo Electric Ind Ltd | サ−メツトの焼結法 |
Non-Patent Citations (2)
Title |
---|
(SUMITOMO ELECTRIC IND. LTD.) 12.Dezember 1986, * |
PATENT ABSTRACTS OF JAPAN vol. 11 no. 141 (C-421) ,8.Mai 1987 & JP,A,61 281835 * |
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EP0758407B1 (de) | 1998-02-11 |
JPH09512308A (ja) | 1997-12-09 |
WO1995030030A1 (de) | 1995-11-09 |
US5856032A (en) | 1999-01-05 |
ES2112053T3 (es) | 1998-03-16 |
ATE163203T1 (de) | 1998-02-15 |
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