Abstract:
An adjustment assembly comprising a platform (110) moveably coupled to a base (120), and an adjustment mechanism comprising a deflection member (132, 134) for adjusting the position of the platform (110) laterally relative to the base(120); the adjustment assembly being configured so that the platform (110) can be urged to move laterally in a direction along a first axis responsive to the deflection member (132, 134) being urged to move in a direction along a second axis, the second axis being substantially not parallel to the first direction.
Abstract:
A method of producing a composite diamond compact comprising a polycrystalline diamond (PCD) compact bonded to a cemented carbide substrate is provided. The method includes the steps of: providing a PCD table, preferably a PCD table with diamond-to-diamond bonding and a porous microstructure in which the pores are empty of second phase material bringing together the PCD table and a cemented carbide substrate in the presence of a bonding agent to form an unbonded assembly; subjecting the unbonded assembly to an initial compaction at a pressure of at least 4.5 GPa and a temperature below the melting point of the bonding agent for a period of at least 150 seconds; and thereafter subjecting the unbonded assembly to a temperature above the melting point of the bonding agent and a pressure of at least 4.5 GPa for a time sufficient for the bonding agent to become molten and bond the PCD table to the substrate to form a composite diamond compact.
Abstract:
An outer frame of a cubic press and a cubic press with the outer frame. The outer frame encloses a containing room, with the supporting planes for fixedly supporting the rare baffle of the hinged beam cylinders positioned on the inner wall of the four side surfaces, the upper surface and the lower surface of the outer frame, and the windows for installation, disassembly and maintenance of the press set between any two neighboring supporting planes. The outer frame may be in the shape of a cube, a butterfly, a basket, or a sphere. A press formed from six hinged beam piston parts linked by the rib plate or hinge ears and pins is placed inside the containing room enclosed by the outer frame to form the cubic press.
Abstract:
A composite material consists of a plurality of cores dispersed in a matrix. The cores are formed of ultra-hard material, or the components for making an ultra-hard material. The matrix is formed of the components for making an ultra-hard material of a grade different to that of the cores, and a suitable binder. The ultra-hard material is polycrystalline in nature and is typically PCD or PcBN. The cores are typically provided as granules coated with the components for making an ultra-hard material and the binder. The composite material typically takes on a honeycomb structure of an ultra-hard material and cores within the pores of the honeycomb structure bonded to the honeycomb structure. The pores of the honeycomb structure may be ordered or random.
Abstract:
A method for producing a semiconductor diamond containing boron by the high pressure synthesis method, wherein a graphite material to be converted to the semiconductor diamond is mixed with boron or a boron compound, formed and fired, in such a way that the resultant graphite material contains a boron component uniformly dispersed therein and has an enhanced bulk density, a high purity and a reduced content of hydrogen.
Abstract:
A process for the synthesis of carbon coatings on the surface of metal carbides, preferably SiC, by etching in a halogen-containing gaseous etchant, and optionally hydrogen gas, leading to the formation of a carbon layer on the metal carbide. The reaction is performed in gas mixtures containing 0 to two moles of hydrogen for every two moles of halogen gas, preferably about 0.5 to one mole of hydrogen gas for eery two moles of halogen gas, at temperatures from about 100 DEG C to about 4,000 DEG C. preferably about 800 DEG C to about 1,000 DEG C, over any time range, maintaining a pressure of preferably about one atmosphere.
Abstract:
A method of producing a component of a composite of diamond and a binder, wherein a Hot Isostatic gas Pressure process (HIP) is used, comprising the step of enclosing a de-bound green body (1) comprising compacted diamond particles in an infiltrant (2). The method comprises the further steps of enclosing said de-bound green body (1) and infiltrant (2) in a Zr-capsule (3) that comprises Zirconium as a main constituent and sealing the Zr-capsule (3), and applying a predetermined pressure-temperature cycle on the unit formed by said de-bound green body (1), infiltrant (2) and capsule (3) in which the infiltrant (2) infiltrates the de-bound green body (1) and the de-bound green body (1) is further densified in the sense that the volume thereof is decreased.