CN101466858A - 具有细化结构的硬质合金 - Google Patents
具有细化结构的硬质合金 Download PDFInfo
- Publication number
- CN101466858A CN101466858A CNA2007800221360A CN200780022136A CN101466858A CN 101466858 A CN101466858 A CN 101466858A CN A2007800221360 A CNA2007800221360 A CN A2007800221360A CN 200780022136 A CN200780022136 A CN 200780022136A CN 101466858 A CN101466858 A CN 101466858A
- Authority
- CN
- China
- Prior art keywords
- wimet
- mixture
- grain
- magnetic
- carbide
- 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
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 23
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 17
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 15
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 14
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 13
- 229910009043 WC-Co Inorganic materials 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 19
- 238000005245 sintering Methods 0.000 claims description 14
- 239000010941 cobalt Substances 0.000 claims description 8
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000001238 wet grinding Methods 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910000753 refractory alloy Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0617—AIII BV compounds, where A is Al, Ga, In or Tl and B is N, P, As, Sb or Bi
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
-
- 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
- C22C29/06—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 carbides, but not containing other metal compounds
- C22C29/08—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 carbides, but not containing other metal compounds based on tungsten carbide
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0015—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterized by the colour of the layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0021—Reactive sputtering or evaporation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
- C23C14/325—Electric arc evaporation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/14—Cast iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/44—Iron
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Powder Metallurgy (AREA)
- Physical Vapour Deposition (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
- Sampling And Sample Adjustment (AREA)
- Optical Couplings Of Light Guides (AREA)
- Coating By Spraying Or Casting (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
本发明涉及一种WC-Co硬质合金。通过加入极少量的Ti、V、Zr、Ta或Nb,或者它们的组合,得到一种含有较少异常WC晶粒的晶粒细化硬质合金结构。
Description
本发明涉及一种硬质合金。通过加入极少量的Ti、V、Zr、Ta或Nb,或上述这些的组合,已经得到了一种具有较少异常WC晶粒的晶粒细化的硬质合金。
硬质合金切削工具被用于对韧度和耐磨性均有较高要求的对钢、淬火钢、不锈钢、铸铁和耐热合金的加工中。为了达到所期望的性质,除WC和Co之外,通常需要加入像TiC、NbC、TaC、ZrC和HfC的立方碳化物。这些立方碳化物将在微观结构中形成第三相,立方面心碳化物(B1),通常被称作γ相。无论是细小晶粒还是正常晶粒的硬质合金,在烧结期间都必须控制晶粒生长。众所周知,当在没有抑制剂的情况下烧结WC-Co等级时,WC晶粒的生长非常快,并会发生异常晶粒生长,以至在结构中出现非常大的WC晶粒。因为这些异常晶粒作为严重缺陷并会导致破坏,所以可能对于切削操作是有害的。一种公知控制晶粒生长的方法是添加前述立方碳化物,通常碳化物为TiC、NbC、TaC、ZrC、HfC。然而,这些添加物通常为这样的量,即:使得立方碳化物相存在于微观结构中。但是,缺点是与标准的WC-Co等级相比,韧性降低。
另一种控制晶粒生长的方法是EP-A-1500713中描述的在氮气中烧结,该文献公开了一种细小晶粒的碳化钨-钴硬质合金的制造方法,该方法包括以下步骤:混合,根据标准操作研磨,随后烧结。在脱腊之后,但在孔关闭之前,通过将大于0.5个大气压的氮气引入烧结气氛中,能够得到包括降低的晶粒尺寸和较少量的异常晶粒的晶粒细化结构。
WO 2006/043421公开了一种硬质合金,其包括平均粒径<0.3μm的WC,作为硬质相,以及5.5~15wt%的至少一种铁族金属元素,作为粘结相,除了上述硬质相和粘结相之外,还包含0.005~0.06wt%的Ti,Cr,相对于粘结相重量比率为0.04~0.2。特别地,上述硬质合金不含Ta。上述硬质合金由WC组成,所述WC在合金中形成均匀细小的颗粒,并有效地抑制了粗大WC的生长,这使得提供给硬质合金优良的强度和韧度。
本发明的目的是避免和减少现有技术的问题。
本发明的再一个目的是提供一种硬质合金切削工具,其具有改善的粘结相分布和减少的异常WC晶粒数量,给出的硬质合金工具具有改善的机械和切削性能。
现在令人惊奇地发现,通过将ppm水平的Ti、V、Nb、Zr或Ta,或它们的组合引入硬质合金中,能够得到明显的晶粒细化效果以及改善的粘结相分布。
图1是根据现有技术硬质合金微观结构的光学显微照片。
图2是根据本发明硬质合金微观结构的光学显微照片。
该硬质合金体包含晶粒尺寸为1.0~2.5μm的碳化钨,3~15wt%的钴,以及另外还有ppm水平的下述另外的元素:Ti、V、Nb、Zr、Ta或它们的混合物,使得比例
Me/Co=(at%Ti+at%V+at%Nb+at%Zr+at%Ta)/at%Co(at%=原子%)
低于或等于0.014-(CW)*0.008并高于0.0005,优选高于0.0007,CW为0.80~0.95,优选为0.83~0.92,其中
CW=磁性%Co/wt%Co
其中磁性%Co是硬质合金中磁性钴的重量百分比,wt%Co是硬质合金中钴的重量百分比。CW是Co粘结相中钨的含量的函数。CW为约1表示在粘结相中的钨含量非常低,CW为0.75~0.8表示在粘结相中的钨含量较高。
烧结体中还可以包含少量<0.5%的另外的相(如eta相)的析出,或立方MX碳化物或碳氮化物,其中M=(V+Zr+Ti+Ta+Nb+W),X=C或N。
第一优选实施方式中,另外的元素是Ti。
第二优选实施方式中,另外的元素是Ti和Ta的混合物。
第三优选实施方式中,另外的元素是Ti、Ta和Nb的混合物。
第四优选实施方式中,另外的元素是Ti和Zr的混合物。
第五优选实施方式中,硬质合金包含0.01~0.10wt%的N。
第六优选实施方式中,另外的元素是Ti或者Ti和Ta的混合物,这两种情况中,N都大于0.02wt%,优选大于0.03wt%而小于0.10wt%的N。
根据本发明的制造硬质合金的方法包括以下步骤:根据标准操作对WC-Co体进行混合、研磨、压制和烧结。加入ppm水平的Ti、V、Nb、Zr或Ta或它们的混合物,加入的量使得在烧结的硬质合金中满足根据上述的Me/Co值和CW值。Ti、V、Nb、Zr或Ta可以以纯金属的形式添加,或以碳化物、氮化物和/或碳氮化物或它们的混合物的形式添加。
实施例1
制备除了WC和9.25wt%的Co外具有下列组分(wt%)的硬质合金体1A~1F。
表1a(元素wt%,以碳化物加入)
变体 | Ti | V | Zr | Ta | Nb | |
1A | -- | -- | -- | -- | -- | 参照 |
1B | 0.025 | -- | -- | -- | -- | 本发明 |
1C | -- | 0.027 | -- | -- | -- | 本发明 |
1D | 0.02 | -- | 0.025 | -- | -- | 本发明 |
1E | -- | -- | -- | 0.095 | -- | 本发明 |
1F | -- | -- | -- | -- | 0.049 | 本发明 |
将所述混合物分别湿磨、烘干、压实,并在40毫巴压力下,氩保护气氛中于1410℃下烧结1小时。烧结之后,确定CW、Me/Co、0.014-(CW)*0.008值以及烧结后的晶粒尺寸,结果显示在表1b中。
表1b
变体 | CW | Me/Co | 0.014-(CW)*0.008 | 烧结后dwc(μm) |
1A | 0.91 | NA | NA | 1.7 |
1B | 0.90 | 0.00331 | 0.00680 | 1.4 |
1C | 0.89 | 0.00331 | 0.00688 | 1.3 |
1D | 0.91 | 0.00441 | 0.00672 | 1.4 |
1E | 0.91 | 0.00331 | 0.00672 | 1.3 |
1F | 0.90 | 0.00331 | 0.00680 | 1.4 |
NA=不适用
表中清楚的表明添加少量立方碳化物样品对烧结的WC晶粒尺寸具有令人惊讶的效果。
实施例2
按照与实施例1相同的方法制备具有表2a中给出组分的硬质合金变体2A~2E。采用得自H.C.Starck公司的WC粉末和含有0.08wt%的氮的碳化钨粉末,它们均具有粒度为1.3μm的FSSS晶粒尺寸,将上述粉末连同得自OMG公司的细晶粒钴粉末和得自H.C.Starck公司的细晶粒TiC、TaC以及NbC一起使用。
表2a 元素wt%
元素wt% | Co | Ti | Ta | Nb | N | WC | |
2A | 6.0 | — | — | — | — | 余量 | 参照 |
2B | 6.0 | 0.030 | — | — | — | 余量 | 本发明 |
2C | 6.0 | 0.010 | 0.009 | — | 0.06 | 余量 | 本发明 |
2D | 6.0 | 0.007 | 0.009 | 0.007 | 0.06 | 余量 | 本发明 |
2E | 6.0 | — | 0.014 | 0.014 | 0.06 | 余量 | 本发明 |
所述混合物分别经由湿磨、烘干、压紧,并在40毫巴压力下,氩保护气氛中于1450℃下烧结1小时。烧结完成后,确定CW、Me/Co、0.014-(CW)*0.008以及烧结后的晶粒尺寸,结果显示在表2b中。
另外,所述烧结体还要经过切削、磨削、抛光和蚀刻。通过光学显微镜观察研究其横截面并计算出在任一方向上的大于10μm的碳化钨晶粒的数量。结果显示在表2b中。
表2b
CW | Me/Co | 0.014-0.008*CW | dwc(μm) | >10μm的WC晶粒数量/cm2 | ||
2A | 0.90 | NA | NA | 1.8 | 133 | 参照图1 |
2B | 0.90 | 0.00616 | 0.00680 | 1.4 | 19 | 本发明图2 |
2C | 0.88 | 0.00257 | 0.00696 | 1.5 | 21 | 本发明 |
2D | 0.90 | 0.00267 | 0.00680 | 1.5 | 24 | 本发明 |
2E | 0.88 | 0.00387 | 0.00696 | 1.6 | 35 | 本发明 |
通过实施例1和2可以明显得出,由于少量Ti、Ta、Zr、Nb或V添加物的强的晶粒细化效果,根据本发明的变体具有的微观结构有少得多的大晶粒和普遍更细化的晶粒尺寸。
Claims (8)
1.一种WC-Co硬质合金,其特征在于WC晶粒尺寸为1.0~2.5μm,Co含量为3~15wt%,以及另外还有ppm水平的下列元素:Ti、V、Nb、Zr或Ta,或它们的混合物,使得比例
Me/Co=(at%Ti+at%V+at%Nb+at%Zr+at%Ta)/at%Co,
其低于或等于0.014-(CW)*0.008并高于0.0005,CW为0.80~0.95,其中
CW=磁性%Co/wt%Co
其中磁性%Co为磁性钴的重量百分比,并且wt%Co为硬质合金中钴的重量百分比。
2.根据权利要求1所述的硬质合金,其特征在于另外的元素是Ti。
3.根据权利要求1所述的硬质合金,其特征在于另外的元素是Ti和Ta的混合物。
4.根据权利要求1所述的硬质合金,其特征在于另外的元素是Ti、Ta和Nb的混合物。
5.根据权利要求1所述的硬质合金,其特征在于另外的元素是Ti和Zr的混合物。
6.根据前述任一权利要求所述的硬质合金,其特征在于其包含0.01~0.10wt%的N。
7.根据权利要求1所述的硬质合金,其特征在于另外的元素是Ti或者Ti和Ta的混合物,在这两种情况中,N含量都大于0.02wt%。
8.一种制造WC-Co硬质合金的方法,包括以下步骤:混合和湿磨WC和Co的粉末,压制以及烧结,其特征在于将ppm水平的Ti、V、Nb、Zr或Ta,或它们的混合物,以纯金属形式或者以碳化物、氮化物和/或碳氮化物形式或它们的混合物形式,以这样的量加入粉末混合物中,即:使得
Me/Co=(at%Ti+at%V+at%Nb+at%Zr+at%Ta)/at%Co
低于或等于0.014-(CW)*0.008并高于0.0005,CW为0.80~0.95,其中
CW=磁性%Co/wt%Co
其中磁性%Co为磁性钴的重量百分比,wt%Co为硬质合金中钴的重量百分比。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0601312-2 | 2006-06-15 | ||
SE0601312A SE530516C2 (sv) | 2006-06-15 | 2006-06-15 | Belagt hårdmetallskär, metod att tillverka detta samt dess användning vid fräsning av gjutjärn |
SE06013122 | 2006-06-15 | ||
PCT/SE2007/050413 WO2007145585A1 (en) | 2006-06-15 | 2007-06-13 | Cemented carbide with refined structure |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101466858A true CN101466858A (zh) | 2009-06-24 |
CN101466858B CN101466858B (zh) | 2012-12-12 |
Family
ID=38457715
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007800221360A Active CN101466858B (zh) | 2006-06-15 | 2007-06-13 | 具有细化结构的硬质合金 |
CN2007101101067A Expired - Fee Related CN101088756B (zh) | 2006-06-15 | 2007-06-15 | 用于铸铁铣削的刀片 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007101101067A Expired - Fee Related CN101088756B (zh) | 2006-06-15 | 2007-06-15 | 用于铸铁铣削的刀片 |
Country Status (10)
Country | Link |
---|---|
US (2) | US7767319B2 (zh) |
EP (2) | EP1867741B1 (zh) |
JP (2) | JP5466003B2 (zh) |
KR (2) | KR101411049B1 (zh) |
CN (2) | CN101466858B (zh) |
AT (1) | ATE440974T1 (zh) |
DE (1) | DE602007002111D1 (zh) |
IL (2) | IL183576A0 (zh) |
SE (1) | SE530516C2 (zh) |
WO (1) | WO2007145585A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102329081A (zh) * | 2010-06-30 | 2012-01-25 | 钴碳化钨硬质合金公司 | 用于玻璃模制用模口及工具加工的TiAlN涂层 |
CN105764637A (zh) * | 2013-11-29 | 2016-07-13 | 三菱综合材料株式会社 | 金刚石包覆硬质合金制切削工具及其制造方法 |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE530516C2 (sv) * | 2006-06-15 | 2008-06-24 | Sandvik Intellectual Property | Belagt hårdmetallskär, metod att tillverka detta samt dess användning vid fräsning av gjutjärn |
SE0602494L (sv) * | 2006-11-22 | 2008-05-23 | Sandvik Intellectual Property | Metod att tillverka en sintrat kropp, en pulverblandning och en sintrad kropp |
SE0701761L (sv) * | 2007-06-01 | 2008-12-02 | Sandvik Intellectual Property | Finkornig hårdmetall för svarvning i varmhållfasta superlegeringar (HRSA) och rostfria stål |
SE0701449L (sv) | 2007-06-01 | 2008-12-02 | Sandvik Intellectual Property | Finkornig hårdmetall med förfinad struktur |
US8455116B2 (en) * | 2007-06-01 | 2013-06-04 | Sandvik Intellectual Property Ab | Coated cemented carbide cutting tool insert |
WO2009002266A1 (en) * | 2007-06-27 | 2008-12-31 | Sandvik Intellectual Property Ab | Coated cemented carbide inserts for milling of especially hard cast steel |
SE531946C2 (sv) | 2007-08-24 | 2009-09-15 | Seco Tools Ab | Skär för fräsning i gjutjärn |
EP2201153B1 (en) * | 2007-08-24 | 2014-10-08 | Seco Tools AB | Insert for milling of cast iron |
SE531971C2 (sv) * | 2007-08-24 | 2009-09-15 | Seco Tools Ab | Belagt skärverktyg för allmän svarvning i varmhållfast superlegeringar (HRSA) |
SE531933C2 (sv) * | 2007-12-14 | 2009-09-08 | Seco Tools Ab | Belagt hårdmetallskär för bearbetning av stål och rostfria stål |
WO2009091331A1 (en) * | 2008-01-18 | 2009-07-23 | Sandvik Intellectual Property Ab | Method of making a coated medical bone implant and a medical bone implant made thereby |
WO2010002344A1 (en) * | 2008-07-01 | 2010-01-07 | Sandvik Intellectual Property Ab | A cemented carbide insert for turning |
US8277958B2 (en) * | 2009-10-02 | 2012-10-02 | Kennametal Inc. | Aluminum titanium nitride coating and method of making same |
EP2392688A1 (en) * | 2010-06-07 | 2011-12-07 | Sandvik Intellectual Property AB | Coated cutting tool |
US8409702B2 (en) | 2011-02-07 | 2013-04-02 | Kennametal Inc. | Cubic aluminum titanium nitride coating and method of making same |
US9399814B2 (en) * | 2011-09-19 | 2016-07-26 | Lamina Technologies S.A. | Coated cutting tool |
CN103121312A (zh) * | 2011-11-19 | 2013-05-29 | 大连得达科技发展有限公司 | 一种用于刀具制造的合金材料 |
DE102012107129A1 (de) * | 2012-08-03 | 2014-02-06 | Walter Ag | TiAIN-beschichtetes Werkzeug |
US9476114B2 (en) | 2012-08-03 | 2016-10-25 | Walter Ag | TiAlN-coated tool |
EP2939806B1 (en) * | 2012-12-28 | 2018-02-21 | Kanefusa Kabushiki Kaisha | Cutting tool |
US9103036B2 (en) | 2013-03-15 | 2015-08-11 | Kennametal Inc. | Hard coatings comprising cubic phase forming compositions |
EP3004411B1 (en) * | 2013-05-31 | 2021-07-07 | Sandvik Intellectual Property AB | New process of manufacturing cemented carbide and a product obtained thereof |
US9168664B2 (en) | 2013-08-16 | 2015-10-27 | Kennametal Inc. | Low stress hard coatings and applications thereof |
US9896767B2 (en) | 2013-08-16 | 2018-02-20 | Kennametal Inc | Low stress hard coatings and applications thereof |
KR101640690B1 (ko) | 2014-12-30 | 2016-07-18 | 한국야금 주식회사 | 인성이 향상된 초경합금 |
US10287824B2 (en) | 2016-03-04 | 2019-05-14 | Baker Hughes Incorporated | Methods of forming polycrystalline diamond |
US9845268B2 (en) * | 2016-05-23 | 2017-12-19 | Kennametal Inc. | Sintered ceramic bodies and applications thereof |
EP3366795A1 (en) * | 2017-02-28 | 2018-08-29 | Sandvik Intellectual Property AB | Cutting tool |
EP3366796A1 (en) | 2017-02-28 | 2018-08-29 | Sandvik Intellectual Property AB | Coated cutting tool |
US11396688B2 (en) | 2017-05-12 | 2022-07-26 | Baker Hughes Holdings Llc | Cutting elements, and related structures and earth-boring tools |
US11292750B2 (en) | 2017-05-12 | 2022-04-05 | Baker Hughes Holdings Llc | Cutting elements and structures |
US10570501B2 (en) | 2017-05-31 | 2020-02-25 | Kennametal Inc. | Multilayer nitride hard coatings |
CN112004954B (zh) * | 2018-03-29 | 2022-06-28 | 京瓷株式会社 | 硬质合金和使用它的涂层刀具、切削刀具 |
US11536091B2 (en) | 2018-05-30 | 2022-12-27 | Baker Hughes Holding LLC | Cutting elements, and related earth-boring tools and methods |
Family Cites Families (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2999346B2 (ja) * | 1993-07-12 | 2000-01-17 | オリエンタルエンヂニアリング株式会社 | 基体表面被覆方法及び被覆部材 |
JP2793772B2 (ja) * | 1994-05-13 | 1998-09-03 | 神鋼コベルコツール株式会社 | 密着性に優れた硬質皮膜被覆工具および硬質皮膜被覆部材 |
SE514181C2 (sv) | 1995-04-05 | 2001-01-15 | Sandvik Ab | Belagt hårmetallskär för fräsning av gjutjärn |
WO1997020083A1 (en) | 1995-11-30 | 1997-06-05 | Sandvik Ab (Publ) | Coated cutting insert and method of making it |
SE9504304D0 (sv) | 1995-11-30 | 1995-11-30 | Sandvik Ab | Coated milling insert |
KR100432108B1 (ko) | 1995-11-30 | 2004-11-16 | 산드빅 악티에볼라그 | 피복된선삭용인서트및그제조방법 |
JP3414102B2 (ja) * | 1996-02-05 | 2003-06-09 | 三菱マテリアル株式会社 | 硬質層積層被覆切削工具 |
US5750247A (en) * | 1996-03-15 | 1998-05-12 | Kennametal, Inc. | Coated cutting tool having an outer layer of TiC |
SE510778C2 (sv) | 1996-07-11 | 1999-06-21 | Sandvik Ab | Belagt skär för finfräsning av grått gjutjärn |
SE509616C2 (sv) * | 1996-07-19 | 1999-02-15 | Sandvik Ab | Hårdmetallskär med smal kornstorleksfördelning av WC |
JP4177468B2 (ja) * | 1996-10-04 | 2008-11-05 | 住友電工ハードメタル株式会社 | 高硬度硬質合金とその製造方法 |
US5773735A (en) * | 1996-11-20 | 1998-06-30 | The Dow Chemical Company | Dense fine grained monotungsten carbide-transition metal cemented carbide body and preparation thereof |
SE518145C2 (sv) * | 1997-04-18 | 2002-09-03 | Sandvik Ab | Multiskiktbelagt skärverktyg |
JP3292949B2 (ja) | 1997-05-26 | 2002-06-17 | 株式会社アライドマテリアル | 微粒超硬合金及びその製造方法 |
JP3318887B2 (ja) | 1997-05-27 | 2002-08-26 | 株式会社アライドマテリアル | 微粒超硬合金及びその製造方法 |
SE512754C2 (sv) * | 1997-09-05 | 2000-05-08 | Sandvik Ab | Sätt att tillverka ultrafina WC-Co-legeringar |
JP3496135B2 (ja) | 1997-11-19 | 2004-02-09 | 株式会社アライドマテリアル | 硬質合金及びその製造方法 |
CA2285460A1 (en) * | 1998-02-04 | 1999-08-12 | Osg Corporation | Hard multilayer coated tool having increased toughness |
SE9802488D0 (sv) * | 1998-07-09 | 1998-07-09 | Sandvik Ab | Coated grooving or parting insert |
SE519005C2 (sv) * | 1999-03-26 | 2002-12-17 | Sandvik Ab | Belagt hårdmetallskär |
SE519315C2 (sv) * | 1999-04-06 | 2003-02-11 | Sandvik Ab | Sätt att tillverka ett hårdmetallpulver med lågt presstryck |
SE9903089D0 (sv) * | 1999-09-01 | 1999-09-01 | Sandvik Ab | Coated grooving or parting insert |
SE9903122D0 (sv) * | 1999-09-06 | 1999-09-06 | Sandvik Ab | Coated cemented carbide insert |
JP2001200329A (ja) * | 2000-01-21 | 2001-07-24 | Hitachi Tool Engineering Ltd | 強靭性超微粒超硬合金 |
SE519250C2 (sv) | 2000-11-08 | 2003-02-04 | Sandvik Ab | Belagt hårdmetallskär och användning av detsamma för våtfräsning |
DE10115390A1 (de) * | 2000-12-22 | 2002-06-27 | Mitsubishi Materials Corp Toki | Beschichtetes Schneidwerkzeug |
DE10135790B4 (de) * | 2001-07-23 | 2005-07-14 | Kennametal Inc. | Feinkörniges Sinterhartmetall und seine Verwendung |
JP2003145309A (ja) * | 2001-11-07 | 2003-05-20 | Osg Corp | ダイヤモンド被覆加工工具 |
WO2003061884A1 (fr) * | 2002-01-21 | 2003-07-31 | Mitsubishi Materials Kobe Tools Corporation | Element d'outil de coupe a surface munie d'un revetement comportant une couche de revetement dur manifestant une excellente resistance a l'abrasion dans le decoupage haute vitesse, et procede pour former ladite couche de revetement dur sur la surface d'un outil de coupe |
US6660133B2 (en) * | 2002-03-14 | 2003-12-09 | Kennametal Inc. | Nanolayered coated cutting tool and method for making the same |
SE523826C2 (sv) | 2002-03-20 | 2004-05-25 | Seco Tools Ab | Skär belagt med TiAIN för bearbetning med hög hastighet av legerade stål, sätt att framställa ett skär och användning av skäret |
SE526674C2 (sv) * | 2003-03-24 | 2005-10-25 | Seco Tools Ab | Belagt hårdmetallskär |
JP2004315904A (ja) | 2003-04-16 | 2004-11-11 | Sumitomo Electric Ind Ltd | 微粒超硬合金 |
SE527173C2 (sv) | 2003-07-25 | 2006-01-17 | Sandvik Intellectual Property | Sätt att tillverka en finkorning hårdmetall |
SE527348C2 (sv) | 2003-10-23 | 2006-02-14 | Sandvik Intellectual Property | Sätt att tillverka en hårdmetall |
SE527679C2 (sv) * | 2004-01-26 | 2006-05-09 | Sandvik Intellectual Property | Hårdmetallkropp, särskilt spiralborr, och användning av denna för verktyg för roterande metallbearbetning |
SE0402180D0 (sv) | 2004-09-10 | 2004-09-10 | Sandvik Ab | Deposition of Ti1-xAlxN using Bipolar Pulsed Dual Magnetron Sputtering |
JP3762777B1 (ja) * | 2004-10-19 | 2006-04-05 | 住友電気工業株式会社 | 超硬合金 |
SE528380C2 (sv) | 2004-11-08 | 2006-10-31 | Sandvik Intellectual Property | Belagt skär för torrfräsning, sätt och användning av detsamma |
SE528673C2 (sv) * | 2005-01-03 | 2007-01-16 | Sandvik Intellectual Property | Belagt hårdmetallskär för torrfräsning i höglegerat grått gjutjärn samt sätt och användning |
SE528671C2 (sv) | 2005-01-31 | 2007-01-16 | Sandvik Intellectual Property | Hårdmetallskär för seghetskrävande korthålsborrning samt förfarande för att framställa detsamma |
SE529013C2 (sv) * | 2005-05-27 | 2007-04-10 | Sandvik Intellectual Property | Hårdmetall för verktyg för kallbearbetning av dryckesburkar, samt användning av sådan hårdmetall i verktyg för kallbearbetning |
SE529838C2 (sv) | 2005-12-08 | 2007-12-04 | Sandvik Intellectual Property | Belagt hårdmetallskär, sätt att framställa detta samt dess användning för fräsning i stål |
SE530253C2 (sv) | 2005-12-14 | 2008-04-08 | Sandvik Intellectual Property | Hårdmetallskär, dess framställning samt användning för förslitningskrävande avstickning och spårstickning i varmhållfasta superlegeringar och rostfria stål |
SE529431C2 (sv) * | 2005-12-14 | 2007-08-07 | Sandvik Intellectual Property | Belagt hårdmetallskär, sätt att framställa detta samt dess användning för svarvning |
SE530516C2 (sv) * | 2006-06-15 | 2008-06-24 | Sandvik Intellectual Property | Belagt hårdmetallskär, metod att tillverka detta samt dess användning vid fräsning av gjutjärn |
SE530517C2 (sv) | 2006-08-28 | 2008-06-24 | Sandvik Intellectual Property | Belagt hårdmetallskär, sätt att tillverka detta samt dess användning för fräsning av hårda Fe-baserade legeringar > 45 HRC |
SE0701449L (sv) * | 2007-06-01 | 2008-12-02 | Sandvik Intellectual Property | Finkornig hårdmetall med förfinad struktur |
-
2006
- 2006-06-15 SE SE0601312A patent/SE530516C2/sv not_active IP Right Cessation
-
2007
- 2007-05-14 EP EP07108111A patent/EP1867741B1/en not_active Not-in-force
- 2007-05-14 AT AT07108111T patent/ATE440974T1/de active
- 2007-05-14 DE DE602007002111T patent/DE602007002111D1/de active Active
- 2007-05-23 US US11/802,569 patent/US7767319B2/en not_active Expired - Fee Related
- 2007-05-31 IL IL183576A patent/IL183576A0/en unknown
- 2007-06-13 EP EP07748573.8A patent/EP2032731B1/en active Active
- 2007-06-13 JP JP2009515351A patent/JP5466003B2/ja active Active
- 2007-06-13 KR KR1020087030467A patent/KR101411049B1/ko active IP Right Grant
- 2007-06-13 CN CN2007800221360A patent/CN101466858B/zh active Active
- 2007-06-13 WO PCT/SE2007/050413 patent/WO2007145585A1/en active Application Filing
- 2007-06-13 US US12/303,317 patent/US7976607B2/en active Active
- 2007-06-14 KR KR1020070058385A patent/KR101465252B1/ko not_active IP Right Cessation
- 2007-06-15 CN CN2007101101067A patent/CN101088756B/zh not_active Expired - Fee Related
- 2007-06-15 JP JP2007158588A patent/JP5161496B2/ja not_active Expired - Fee Related
-
2008
- 2008-11-23 IL IL195434A patent/IL195434A0/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102329081A (zh) * | 2010-06-30 | 2012-01-25 | 钴碳化钨硬质合金公司 | 用于玻璃模制用模口及工具加工的TiAlN涂层 |
CN105764637A (zh) * | 2013-11-29 | 2016-07-13 | 三菱综合材料株式会社 | 金刚石包覆硬质合金制切削工具及其制造方法 |
CN105764637B (zh) * | 2013-11-29 | 2017-11-14 | 三菱综合材料株式会社 | 金刚石包覆硬质合金制切削工具及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR101411049B1 (ko) | 2014-08-06 |
CN101466858B (zh) | 2012-12-12 |
EP2032731A1 (en) | 2009-03-11 |
US7976607B2 (en) | 2011-07-12 |
KR20070119555A (ko) | 2007-12-20 |
ATE440974T1 (de) | 2009-09-15 |
SE530516C2 (sv) | 2008-06-24 |
EP1867741B1 (en) | 2009-08-26 |
KR20090023383A (ko) | 2009-03-04 |
EP2032731B1 (en) | 2016-03-30 |
CN101088756B (zh) | 2010-06-09 |
JP5466003B2 (ja) | 2014-04-09 |
IL195434A0 (en) | 2009-08-03 |
IL183576A0 (en) | 2007-09-20 |
EP2032731A4 (en) | 2014-10-08 |
JP5161496B2 (ja) | 2013-03-13 |
KR101465252B1 (ko) | 2014-11-26 |
DE602007002111D1 (de) | 2009-10-08 |
SE0601312L (sv) | 2007-12-16 |
US7767319B2 (en) | 2010-08-03 |
EP1867741A1 (en) | 2007-12-19 |
JP2009540129A (ja) | 2009-11-19 |
US20090242824A1 (en) | 2009-10-01 |
WO2007145585A1 (en) | 2007-12-21 |
CN101088756A (zh) | 2007-12-19 |
US20070292671A1 (en) | 2007-12-20 |
JP2007331103A (ja) | 2007-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101466858B (zh) | 具有细化结构的硬质合金 | |
JP5117931B2 (ja) | 微細構造の微粒超硬合金 | |
CN101353748A (zh) | 具有细化结构的细晶硬质合金 | |
US6228139B1 (en) | Fine-grained WC-Co cemented carbide | |
JP6227517B2 (ja) | 超硬合金 | |
US20040187639A1 (en) | Compositionally graded sintered alloy and method of producing the same | |
US6273930B1 (en) | Method of making a cemented carbide powder with low compacting pressure | |
JPH0860201A (ja) | タングステンを基にした浸炭処理された炭化物粉末混合物およびそれから製造される浸炭処理された炭化物生成物 | |
CN102534337A (zh) | 金属陶瓷体和制造金属陶瓷体的方法 | |
WO2020090280A1 (ja) | 超硬合金、切削工具および超硬合金の製造方法 | |
JPS6256224B2 (zh) | ||
US5462574A (en) | Sintered carbonitride alloy and method of producing | |
JP2005042201A (ja) | 微細粒炭化タングステン−コバルト超硬合金を製造する方法 | |
JPS6256943B2 (zh) | ||
JPH0681072A (ja) | 炭化タングステン基超硬合金 | |
JP3318887B2 (ja) | 微粒超硬合金及びその製造方法 | |
JPS6256944B2 (zh) | ||
JPH05230588A (ja) | 硬質合金 | |
JPS6059195B2 (ja) | すぐれた耐摩耗性と靭性を有する硬質焼結材料の製造法 | |
JP2004169185A (ja) | フライス作業用のTi、Nb、W、C、N及びCoを含有する焼結チタン基炭窒化物合金及びその製造方法 | |
JPH10324942A (ja) | 微粒超硬合金及びその製造方法 | |
JP3045199B2 (ja) | 高硬度超硬合金の製造法 | |
JP2004292865A (ja) | 耐欠損性に優れた超硬合金およびその製造方法 | |
JPS63176444A (ja) | 超微粒超硬合金 | |
JPH09302437A (ja) | 微粒超硬合金 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |