61results about How to "Suppression defect" patented technology

The invention provides a cubic boron nitride sintering body cutting tool that exhibits excellent defect resistance, and a manufacturing method of the same. The cutting tool is a cBN tool that still exhibits excellent defect resistance and breaking resistance even if continuously cutting and machining high-hardness steel, and that has an excellent cutting property even if being used for a long time. A sintering body comprising cubic boron nitride particles and a bonding phase serves as a tool base body of the cubic boron nitride sintering body cutting tool. Nitride, boride and oxide containing Ti and a solid solution of the nitride, boride and oxide, in an area within 50nm from the surfaces of the cubic boron nitride particles, account for more than 80vol% of the total volume of the area. In this way, the aim of the invention is achieved.

The invention provides a surface coating cutting tool. An average proportion X[avg] of A1 and an average proportion Y[avg] of C of a (Ti[1-X]A1[X])(C[Y]N[1-Y]) layer, of which film formation is realized through chemical evaporation with A1(CH3) as reaction gases on the surface of a substrate, wherein (Xavg and Yavg are both atomic ratios), satisfy 0.60<= X[avg]<=0.95 and 0<= Y[avg]<=0.005. Crystalline grains having cubic crystalline structures exist in crystalline grains forming complex nitrides or a layer of the complex nitrides. In measurement of distribution of degrees of inclination angles of an inclination angle between a normal of surfaces of crystalline grains (111) and the surface of the substrate, a degree ratio in a scope of 0-12 degrees is more than 45% of all the degrees. When a scanning electron microscope is used to observe organizations from the surface sides of the complex nitrides or the layer of the complex nitrides, the crystalline grains having the c cubic crystalline structures have triangular shapes in surfaces perpendicular to a layer thickness direction. A facet formed by an equivalent crystalline plane expressed by (111) of the crystalline grains accounts for an area proportion of more than 35% in the surface perpendicular to the layer thickness direction.

The invention provides a high-capacity inflatable tire, which is capable of preventing rubber loss and damage and improving the nibbling performance. A tread part (2) of the high-capacity inflatable tire (1) has a main groove (3) and a land portion (4). The main groove (3) comprises a tire-shoulder main groove (3A). The land portion (4) comprises a central land portion (4A) and a tire-shoulder land portion (4B). The central land portion (4A) is spacedly provided with central pattern blocks (7). A tire-shoulder auxiliary groove (9) and a tire-shoulder transverse groove (10) are formed on the tire-shoulder land portion (4B). The tire-shoulder auxiliary groove (9) comprises an outer tire-shoulder auxiliary groove (9A) and an inner tire-shoulder auxiliary groove (9B). The tire-shoulder transverse groove (10) comprises an inner portion (10A), a central portion (10B) and an outer portion (10C). The tire-shoulder land portion (4B) is spacedly provided with an inner tire-shoulder pattern block row (11A), a central tire-shoulder pattern block row (11B) and an outer tire-shoulder pattern block row (11C). The spacing distance (P2) between the inner portion (10A), the central portion (10B) and the outer portion (10C) is smaller than the spacing distance (P1) of a central transverse groove (6).

Provided are a zinc oxide sintered compact with a zirconium content of 10-1,000 ppm and a sputtering target comprising the zinc oxide sintered compact. Also provided is a zinc oxide thin film with a zirconium content of 10-2,000 ppm and a resistivity of 10 Omega.cm or more.

In a cBN sintered body cutting tool having a sintered body including cBN grains and a binder phase as the tool base body therefor, the sintered body contains at least 40 capacity% but less than 60 capacity% cBN grains, a minimum of 2% by mass of Al, and a maximum within a range that fulfils the relationship Y= -0.1X+10, when Y is the Al content ratio (capacity %) and X is the cBN content ratio (% by mass). The binder phase contains at least a Ti-based compound, Al2O3, and unavoidable impurities. Al2O3 that has a diameter of 10-100 nm, among said Al2O3, is dispersed and generated within the binder phase and at least 30 Al2O3 being generated within a 1 [mu]m * 1[mu]m cross-sectional area of the binder phase.

The invention provides a manufacturing method of an R-T-B sintered magnet. By adopting the method, a heavy rare earth element RH diffuses inwards from the surface of R-T-B sintered magnet raw materials without lowering the residula magnetic flux density, and the fracturing and damages of the R-T-B sintered magnet are inhibited. The manufacturing method comprises an R-T-B sintered magnet raw material preparing step, an RH diffusion source preparing step, a step for loading the R-T-B sintered magnet raw materials, RH diffusion sources and stirring auxiliary parts in a processing chamber; and an RH diffusion step for moving the R-T-B sintered magnet raw materials, the RH diffusion sources and stirring auxiliary parts and simultaneously heating the R-T-B sintered magnet raw materials and the RH diffusion sources. The size of each R-T-B sintered magnet raw material is larger than 1000mm3, and the maximum size is two times of the minimum size among the sizes in three orthotropic directions. Each RH diffusion source is smaller than 3 mm. The stirring auxiliary parts include a plurality of first ball bodies and a plurality of second ball bodies.

Multiple grooves (27) are formed and in each of said grooves, multiple insert seats (28) are formed and cutting inserts (30) are detachably disposed. The cutting inserts (30) have main cutting edges (34), corner cutting edges, and auxiliary cutting edges (35), and the main cutting edges (34) are formed with a wave form when viewed from the direction of the cutting face. The cutting inserts (30) are disposed so that in the rotation tracks formed by the main cutting edges (34) of the respective cutting inserts (30) when the roughing cutter (10) is rotated around the rotation center axis (O), the wave phases of the rotation tracks formed by adjacent cutting inserts (30) in a single groove (27) in the direction along the rotation center axis (O) coincide, and at least some of the cutting inserts (30) are disposed so that the rotation tracks formed by some of the cutting edge portions overlap each other in the rotation center axis (O) direction. As a result, even when said cutting edge portions are used as a main cutting edge portion and as an inner blade, cutting load is reduced and damage is limited.

An object of the present invention is to provide a cBN sintered body cutting tool with excellent toughness. While being used for interrupted cutting of high-hardness steel even if in the situation requiring high-load cutting conditions, the cutting tool provided by the invention is prevented from proneness to the cracks and defects of the blade and has excellent cutting performance which can be maintained for a long term. The cBN sintered body cutting tool comprises a sintered body including cubic boron nitride and a binder phase as a tool substrate, wherein a binder phase structure is existed in the area within 100nm from the grain boundary of the cubic boron nitride towards the binder phase, and is composed of one or more than two selected from the group of nitrides, carbides, carbon nitrides and borides of Ti, nitrides, borides and oxides of Al, and solid solution of more than two of them, and inevitable impurities, and has fine structures with an average volume diameter MV of 10-80 nm. Thus, the object of the present invention is achieved.

The present invention provides an optical unit and an optical unit with a 3-axis shake correction function. An optical unit including a roll correction mechanism is miniaturized. The optical unit fixes a substrate on which an imaging element is mounted to a rotating pedestal that is separated from a lens unit and a lens holder, so that the rotating pedestal rotates to perform roll correction. A coil of a magnetic drive mechanism for roll and at least a part of the projection area in the optical axis L direction of the magnet overlap with the substrate on which the imaging element is mounted. Further, since a rotation support mechanism includes a bearing portion and a rotation support portion, and the rotation support portion is disposed radially outside the bearing portion, compared with aconfiguration in which two sets of ball bearings such as the bearing portion are arranged to overlap each other in the optical axis L direction, the thickness in the optical axis L direction is small. Therefore, the optical unit can be miniaturized, and the optical unit can be made lighter.

The invention provides a cutting tool made from a cubic boron nitride sintering material which demonstrates excellent resistance to defects in intermittent cutting machining of high-hardness steel. According to the cutting tool made from the cubic boron nitride sintering material, optimally an average particle size of a cubic boron nitride particle is 0.5 to 8 [mu]m; at least pat of the surface of the cubic boron nitride particle is coated by an oxygen-containing aluminum nitride film with the average thickness of 10 to 100 [mu]m and an everage oxygen concentration being 1 to 15 atom%; furthermore, the oxygen-containing aluminum nitride film covering the surface of the cubic boron nitride particle has a local crack; and the average formation proportion of the local crack h / H satisfies 002<=h / H<=0.08, with h representing the length of the crack of the oxygen-containing aluminum nitride film and H representing the perimeter of the cubic boron nitride particle.

The present invention is a pneumatic tire vulcanized and molded by a split type tire mold composed of a plurality of sectors formed by dividing an annular side mold having a tread forming surface for forming a tread in the circumferential direction. . On the tread having the first region formed by the region near the sector division position of the sideform and the second region formed by the region far from the sector division position of the sideform, there is at least one tire extending in the circumferential direction of the tire. The land portion formed by dividing the circumferential grooves. In at least one of the land portions, fine lines extending from at least one of the circumferential grooves and extending from at least one of the land portions are arranged at predetermined intervals in the tire circumferential direction. The fine lines include first fine lines located in the first region and second fine lines located in the second region. The length W1 in the tire width direction of the first sipe is shorter than the length W2 in the tire width direction of the second sipe.

A disk-like glass substrate with magnetic recording medium and a manufacturing method thereof aim to improve productivity. The disk-like glass substrate does not contact with a wall surface of a cutting slot when being cut out from a glass blank. The method comprises a cutting step, a polishing step, and a cleaning step. In the cutting step, the substrate is cut out of the glass blank along a circular contour in the surface by means of a pulse laser beam with an irradiation pulse width greater than 1 femtosecond and less than 1 nanosecond, so that the cutting slot wider than 10 micrometer is formed along the contour. In the polishing step, a main surface of the substrate is polished. In the cleaning step, the surface of the substrate is cleaned.

The present invention obtains a magnetic induction motor that, when core block pairs that sandwich magnet blocks are arrayed in an annular shape and are integrated, eliminates contact between magnet blocks and is able to suppress the occurrence of cracks or chips in the magnet blocks. In the present invention: a first stator core (9A) and a second stator core (9B) cause core block (10) pairs, which are configured by separating and superposing in the axial direction an arc-shaped core back section (10a) and core blocks (10) comprising teeth (10b) protruding inwards in the radial direction from the inner peripheral surface of the core back section (10a), to be configured arrayed in an annular shape in a manner such that the lateral surfaces in the peripheral direction of the core back sections (10a) contact each other; permanent magnets (12) are configured in a manner split respectively to the plurality of magnet blocks (13) sandwiched between the core block (10) pairs in a manner so as to fit within the core block (10) pairs; and the magnet blocks (13) have a base section (13a) sandwiched between the core back sections (10a) and of which the two lateral surfaces in the peripheral direction have an outer shape positioned at the inside in the peripheral direction from the two lateral surfaces in the peripheral direction of the core back sections (10a).

A photosensitive resin composition includes a carboxyl group-containing photosensitive resin, a photopolymerization initiator, a compound having an ethylenic unsaturated group, a non-reactive diluent, and an epoxy compound. The photopolymerization initiator includes an oxime ester compound and an aminocarbonyl compound having a tertiary amino group.

A method for operating a charging system for charging electric vehicles, wherein the charging system has a charging station and at least two charging columns which are physically separate from one another and each have at least one charging connection. Each charging column has a light sensor and also a light and / or a display. The method includes receiving signals of the individual light sensors and also collectively evaluating the signals and adjusting the brightness of the light and / or the display of at least one of the charging columns depending on a result of collectively evaluating the received signals. Also described herein is a corresponding charging system.

The present application provides a photocurable resin composition for transferring surface free energy, the photocurable resin composition including a first compound exhibiting low surface free energy, a second compound exhibiting surface free energy higher than the surface free energy of the first compound, and a photopolymerization initiator, wherein a difference in transmittance of the photocurable resin composition to a wavelength of 450 nm between before and after addition of the first compound is less than 79.3%, and a method for producing a substrate using the photocurable resin composition.

A cutting insert having a substantially polygonal upper surface, a lower surface, a side face with a flank, and a cutting edge formed at the intersection of the upper surface and the side face.The cutting edge has a first cutting edge, a second cutting edge, and a third cutting edge located between the first and second cutting edge at the corner of the polygon. The flank has a first flank corresponding to the first cutting edge, and a second flank corresponding to the second cutting edge. The first flank has an upper flank connected with the first cutting edge, a middle flank located on the lower surface side of the upper flank, and a lower flank located on the lower surface side of the middle flank.Assuming the clearance angle of the upper flank is alpha, the clearance angle of the middleflank is belta, the clearance angle of the lower flank is gamma, and the clearance angle of the second flank is epsilon, the alpha, belta, gamma and epsilon satisfy the relation alpha<belta<gamma<epsilon. The cutting insert is attached to a cutting tool, and a cutting method employs the cutting tool.

The invention provides a high-capacity inflatable tire, which is capable of preventing rubber loss and damage and improving the nibbling performance. A tread part (2) of the high-capacity inflatable tire (1) has a main groove (3) and a land portion (4). The main groove (3) comprises a tire-shoulder main groove (3A). The land portion (4) comprises a central land portion (4A) and a tire-shoulder land portion (4B). The central land portion (4A) is spacedly provided with central pattern blocks (7). A tire-shoulder auxiliary groove (9) and a tire-shoulder transverse groove (10) are formed on the tire-shoulder land portion (4B). The tire-shoulder auxiliary groove (9) comprises an outer tire-shoulder auxiliary groove (9A) and an inner tire-shoulder auxiliary groove (9B). The tire-shoulder transverse groove (10) comprises an inner portion (10A), a central portion (10B) and an outer portion (10C). The tire-shoulder land portion (4B) is spacedly provided with an inner tire-shoulder pattern block row (11A), a central tire-shoulder pattern block row (11B) and an outer tire-shoulder pattern block row (11C). The spacing distance (P2) between the inner portion (10A), the central portion (10B) and the outer portion (10C) is smaller than the spacing distance (P1) of a central transverse groove (6).

A transferable protective layer in a thermal transfer ribbon has a first layer formed upon a substrate and a second layer formed upon the first layer, said thermal transfer ribbon having a dye layer and the transferable protective layer repeatedly formed on one surface of the substrate. The first layer comprises: an acrylic resin (X) including a methyl methacrylate; an acrylic resin (Y) including a styrene-based resin; and a polyester resin (Z). The weight-average molecular weight of X is at least 120,000, the mass ratio between X and Y is 1:9-9:1, the mass of Z is 1%-3% of the total mass of X and Y.

The throwaway tip characterized that the shape is approximately square type plate late, and the corner angle of the another two corner tooth which adjoins each other of one face is made as 90 DEG or less, and the other two corner edge which counters respectively is made as non parallel cutting tooth, a corner angle of another corner cutting edge(11) is set to 90 deg.C or less. The throwaway type cutting tool characterized that two or more throwaway tip is the same as the throwaway tip, and the throwaway tips are arranged so that the other two corner tooth projects respectively to a perimeter side of a tip of a main part of a tool, in a throwaway type cutting tool that the two or more throwaway tips are arranged so that the tip is projected respectively to a tip side of a main part of a tool.