摘要:
A method for making a treated super-hard structure, the method including providing a super-hard structure comprising super-hard material selected from polycrystalline cubic boron nitride (PCBN) material or thermally stable polycrystalline diamond (PCD) material; subjecting the super-hard structure to heat treatment at a treatment temperature of greater than 700 degrees centigrade at a treatment pressure at which the super-hard material is not thermodynamically stable, for a treatment period of at least about 5 minutes to produce the treated super-hard structure.
摘要:
A tool made of a cubic boron nitride sintered body which has a long life in a stable manner in any application of cutting and plastic working is provided. The tool made of the cubic boron nitride sintered body according to the present invention includes a cubic boron nitride sintered body at least at a tool working point and it is characterized by satisfying an Equation (I) and any one of an Equation (II) and an Equation (III) where a ratio of cubic boron nitride contained in the cubic boron nitride sintered body is denoted as X volume % and thermal conductivity of the cubic boron nitride sintered body is denoted as Y (W/m—�K).
摘要:
A dispersion comprising hard material particles and at least one organic binder and/or at least one plasticizer. The hard material particles comprise an inner core comprising a fused tungsten carbide and an outer shell comprising tungsten carbide.
摘要:
A tool made of a cubic boron nitride sintered body which has a long life in a stable manner in any application of cutting and plastic working is provided. The tool made of the cubic boron nitride sintered body according to the present invention includes a cubic boron nitride sintered body at least at a tool working point and it is characterized by satisfying an Equation (I) and any one of an Equation (II) and an Equation (III)
where a ratio of cubic boron nitride contained in the cubic boron nitride sintered body is denoted as X volume % and thermal conductivity of the cubic boron nitride sintered body is denoted as Y (W/m●K).
摘要:
Disclosed is a crystalline hard coating layer having no cracks, which exhibits both high hardness and excellent wear resistance at the same time. A method for forming the hard coating layer is also disclosed. A crystalline hard coating layer (3) coating a substrate (2) is formed by a PVD method, and contains Si and C as essential components, while containing an element M (which is one or more elements selected from among group 3A elements, group 4A elements, group 5A elements, group 6A elements, B, Al and Ru) and N as optional components. The crystalline hard coating layer (3) has the following composition: Si x C 1-x-y-z N y M z (where 0.4 ≤ x ≤ 0.6,0 ≤ y ≤ 0.1, and 0 ≤ z ≤ 0.2).
摘要翻译:公开了没有裂纹的结晶硬质涂层,同时具有高硬度和优异的耐磨性。 还公开了形成硬涂层的方法。 通过PVD法形成涂布基板(2)的结晶硬涂层(3),并含有Si和C作为必要成分,同时含有元素M(选自3A族元素中的一种或多种元素,基团 4A元素,5A族元素,6A族元素,B,Al和Ru)和N作为任选组分。 结晶硬涂层(3)具有以下组成:Si x C 1-xyz N y M z(其中0.4‰¤x‰¤0.6,0‰¤‰¤0.1,0‰¤z‰0.2) 。
摘要:
A cutting tool insert which can, for example, be used for machining of hardened steel, hot and cold working tool steel, die steel, case hardened steel, high speed steel and ductile grey cast iron and composed of a composite comprising a cBN-phase and a binder phase comprising a titaniumcarbonitride phase and a TiB 2 phase is disclosed. In the XRD pattern from the composite using CuKa-radiation, the peak height ratio of the strongest (101) TiB 2 peak and the strongest cBN (111) peak is less than 0.06, the (220) peak from the titanium carbonitride phase in the XRD-pattern intersects both vertical lines of the PDF-lines of TiC (PDF 32-1383) and TiN (PDF 38-1420) and the lowest intersected point height is at least 0.15 of the maximum (220) peak height of the ceramic binder phase. The insert is made by powder metallurgical methods milling, pressing and sintering, the sintering being performed at lowest possible temperature for shortest possible time necessary to obtain a dense structure.