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1. WO2012057183 - CUBIC BORON NITRIDE (CBN) SINTERED BODY AND CUBIC BORON NITRIDE (CBN) SINTERED BODY TOOL

Publication Number WO/2012/057183
Publication Date 03.05.2012
International Application No. PCT/JP2011/074627
International Filing Date 26.10.2011
IPC
B23B 27/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
27Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
14Cutting tools of which the bits or tips are of special material
B23B 27/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
27Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
14Cutting tools of which the bits or tips are of special material
20with diamond bits
C04B 35/10 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
10based on aluminium oxide
C04B 35/583 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
515based on non-oxides
58based on borides, nitrides or silicides
583based on boron nitride
CPC
C04B 2235/3217
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
C04B 2235/3244
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
3244Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
C04B 2235/3813
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
38Non-oxide ceramic constituents or additives
3804Borides
3813Refractory metal borides
C04B 2235/3839
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
38Non-oxide ceramic constituents or additives
3817Carbides
3839Refractory metal carbides
C04B 2235/3852
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
38Non-oxide ceramic constituents or additives
3852Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
C04B 2235/3856
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
38Non-oxide ceramic constituents or additives
3852Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
3856Carbonitrides, e.g. titanium carbonitride, zirconium carbonitride
Applicants
  • 住友電工ハードメタル株式会社 SUMITOMO ELECTRIC HARDMETAL CORP. [JP]/[JP] (AllExceptUS)
  • 岡村 克己 OKAMURA, Katsumi [JP]/[JP] (UsOnly)
  • 阿部 真知子 ABE, Machiko [JP]/[JP] (UsOnly)
  • 久木野 暁 KUKINO, Satoru [JP]/[JP] (UsOnly)
Inventors
  • 岡村 克己 OKAMURA, Katsumi
  • 阿部 真知子 ABE, Machiko
  • 久木野 暁 KUKINO, Satoru
Agents
  • 酒井 正己 SAKAI, Masami
Priority Data
2010-24061327.10.2010JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CUBIC BORON NITRIDE (CBN) SINTERED BODY AND CUBIC BORON NITRIDE (CBN) SINTERED BODY TOOL
(FR) CORPS FRITTÉ EN NITRURE DE BORE CUBIQUE (CBN) ET OUTIL À CORPS FRITTÉ EN NITRURE DE BORE CUBIQUE (CBN)
(JA) 立方晶窒化硼素焼結体及び立方晶窒化硼素焼結体工具
Abstract
(EN)
The purpose of the present invention is to provide a cBN sintered body having excellent antifriction properties and defect resistance even in the machining of hard centrifugally cast iron, and to also provide a cBN sintered body tool. This cBN sintered body contains: between 20 and 65 volume % cBN; between 34 and 80 volume % Al2O3 as a bonding material; at least one type (hereinafter X) selected from Zr nitrides, carbides, carbonitrides, borides, boronitrides, and the solid solutions thereof; and ZrO2. The total of X and ZrO2 is between 1.0 and 6.0 volume %. The volume % ratio of ZrO2 and Al2O3, ZrO2/Al2O3, is at least 0.010 and less than 0.100. In terms of x-ray diffraction peak of the cBN sintered body, the ratio of the intensity Itetragonal ZrO2 (101) of a plane (101) of the tetragonal ZrO2 to the intensity IαAl2O3 (110) of a plane (110) of the αAl2O3 is between 0.1 and 3. X contains at least ZrC in the amount of between 0.1 to 3.0 volume %.
(FR)
L'invention concerne un corps fritté en cBN possédant d'excellentes propriétés anti-frottement et de résistance aux défauts même lors de l'usinage de fonte dure obtenue par centrifugation, ainsi qu'un outil à corps fritté en cBN. Ce corps fritté en cBN contient : entre 20 et 65 % volume de cBN; entre 34 et 80 % volume d'Al2O3 en tant que matériau de liaison; au moins un type (ci-après X) parmi nitrures de Zr, carbures, carbonitrures, borures, boronitrures et des solutions solides de ceux-ci; et ZrO2. Le total de X et ZrO2 est compris entre 1,0 et 6,0 % volume. Le rapport des % volume de ZrO2 et Al2O3, ZrO2/Al2O3, est d'au moins 0,010 et de moins de 0,100. En termes de pic de diffraction des rayons du corps fritté en cBN, le rapport entre l'intensité IZrO2tétragonal (101) d'un plan (101) du ZrO2 tétragonal et l'intensité IαAl2O3 (110) d'un plan (110) d' αAl2O3 est compris entre 0.1 et 3. X contient au moins ZrC à raison de 0.1 à 3.0 % volume.
(JA)
 本発明は、難削性の遠心鋳造鋳鉄の加工においても、耐摩耗性、及び耐欠損性に優れるcBN焼結体及びcBN焼結体工具を提供することを目的とする。 本発明のcBN焼結体は、cBNを20体積%以上65体積%以下と、結合材として、Alを34体積%以上80体積%未満と、Zrの窒化物、炭化物、炭窒化物、硼化物、硼窒化物及びこれらの固溶体から選択される少なくとも一種(以下X)と、ZrOとを含み、XとZrOの合計が1.0体積%以上6.0体積%以下、ZrOとAlの体積比率ZrO/Alが0.010以上0.100未満であり、該cBN焼結体のX線回折ピークの正方晶ZrOの(101)面の強度I正方晶ZrO2(101)と、αAlの(110)面の強度IαAl2O3(110)の比が0.1以上3以下で、前記Xとして少なくともZrCを0.1体積%以上3.0体積%以下含む。
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