A cemented carbide insert of a first grade has at least one cutting point consisting of a cemented carbide of a second grade with different composition and/or grain size with an uneven transition zone between the first and second grade.

PCT No. PCT/GB97/01014 Sec. 371 Date Feb. 18, 1999 Sec. 102(e) Date Feb. 18, 1999 PCT Filed Apr. 11, 1997 PCT Pub. No. WO97/38955 PCT Pub. Date Oct. 23, 1997Process for the selective hydrogenation of alphatic or aromatic substrates under supercritical or near critical conditions. Hydrogenation is effected using a heterogeneous catalyst in a continuous flow reactor containing a supercritical or nea...

A flip type or folder type mobile phone for wireless communication with a base station, which includes a movable part so as to define an open or closed position and an opening/closing sensor for generating an open or close signal according to the open or closed position, the opening/closing sensor being enabled or disabled by an enable or disable signal, whereby the mobile phone terminates a commu...

A column suitable for small-scale laboratory use has a column tube 1, and a movable plunger 2 which slides in the column tube. End filter arrangements 4,5 are mounted by direct integration e.g. melt-bonding of glass, into these components. A tubular stem 3 provides an internal flow conduit to the end filter arrangement 4 at the front end of the plunger 2 and is integrally bonded behind the permeab...

A diamond sintered compact cutting tool comprising a diamond sintered compact sintered at an ultra-high pressure and high temperature and a WC-Co type cemented carbide substrate directly bonded to the diamond sintered compact during a step of sintering and brazed to a tool base through the WC-Co type cemented carbide substrate, wherein the ratio of the thickness of the WC-Co type cemented carbide ...

The present invention relates to a sintered body of a carbonitride alloy with titanium as main component which has improved properties particularly when used as cutting tool material in light finishing cutting operations at high cutting speed. This has been achieved by combining a carbonitride based hard phase of specific chemical composition with an extremely solution hardened Co-based binder pha...

There are many natural pauses during rotary drilling operations where a portion of the drill string remains stationary. Pauses include drill pipe connections, circulating time, and fishing operations. These pauses are used to obtain formation evaluation measurements that take a long time or that benefit from a quiet environment, as opposed to the naturally noisy drilling environment. Various techn...

The opening of the intake air control valve (28) of an engine (16) which actuates a generator (17) of a hybrid vehicle is basically controlled by an intake air control valve control assembly (21,18) to cause the engine (16) to produce a power output corresponding to a target generated output which is determined based on an operating condition of the hybrid vehicle. When regenerative braking of a p...

The utility model relates to a roller cutting wheel with a structure for preventing edge from being blunt for rolling molding. The utility model is put forward to provide a cutting apparatus component for flexible material, which can eliminate the phenomenon that the cutting edge is blunt due to gaps, reducing the attrition of the cutting edge, extending the service life of the roller cutting whee...

The utility model relates to a solar boiler, which is composed of a refracting condenser lens, a light collecting reflector, a heat receiver, a light collecting cage frame, and a bracket, wherein, the lens and the heat receiver are arranged at the two ends of the light collecting cage frame, the light collecting cage frame is arranged on a horizontal rotary shaft of the bracket and can be rotated ...

The utility model relates to a self shutting valve for a complementary vacuum pipe solar water heater. A float of the utility model is connected with a connecting ring positioned at the top part of a guide rod through a guide chain. A stator and a rotor are arranged in a valve body. The guide rod penetrates through the stator and the rotor. The lower end of the guide rod is connected with a counte...

PROBLEM TO BE SOLVED: To give a vibration damping function to a case itself of a transmission so as to reduce the noise to be generated from the case and to secure the strength of the case by connecting a front case to a rear case with bolts from a front surface wall of the front case so as to give the compressive strain in the bolt axial direction to the front case. SOLUTION: A transmission case ...

The invention is directed to polymer thick film conductor compositions comprising conductive metal particles selected from the group consisting of finely divided powders of platinum group metals and mixtures thereof: modified graphite; and a thermoplastic polymer and optionally, graphite and/or a metallized graphite in combination with a surfactant may replace the modified graphite.

The present invention relates to a method for producing soft and elastic, semi-hard or hard moulded bodies of polyurethane which are fluorochlorohydrocarbon-free and have a cellular core as well as a compacted side area. This method comprises reacting a) polyisocyanates with b) at least one compound having at least two reactive hydrogen atoms, with c) foaming agents, with d) catalysts and with e) ...

Hydrocarbon in a carrier of nitrogen or steam is passed over a devitalized supported noble metal/alkali or alkaline earth catalyst/absorber, such as Pt on an alumina monolith coated with potassium carbonate, which has sorbed NOx from engine exhaust to restore and regenerate the devitalized catalyst/absorber for reuse. The hydrocarbon undergoes a shift reaction to produce CO in situ which is the re...

In a path planning method is disclosed for surface processing machines such as, for example, cleaning machines in a supermarket first, potential sub-paths are produced that, proceeding from boundary lines of obstacles or the work area parallel to these boundary lines shifted by the width of the processing device are erected in the form of concentric circles. These potential sub-paths are then sub-...

The present invention provides a resin composition comprising 50 to 99 percent by weight of a completely amorphous polyester resin (A), and 1 to 50 percent by weight of a graft copolymer (B) obtained by graft-polymerizing a methacrylic acid ester and a vinyl aromatic compound with conjugated diene rubber particles and/or a graft copolymer (C) obtained by graft-polymerizing a methacrylic acid ester...

The present invention relates to a method of making a WC-Co-based cemented carbide with a fine WC-grain size. The cemented carbide is produced from well deagglomerated or easy to deagglomerate WC powder with round morphology, a Co powder also well deagglomerated or easy to deagglomerate and with a grain size equal to or smaller than the WC grain size and grain growth inhibitors. According to the i...

The present invention relates to a computer system with suspend/resume capability, and having a CPU, a non-volatile storage device, volatile registers and memory data, a power management processor, a backup suspend timer and a power supply in circuit communication. The power management processor controls the regulation of power to the CPU by the power supply. The suspend/resume system is controlle...

A pneumatic tyre and a method of manufacturing the tyre are disclosed, wherein the tyre comprises a carcass ply (6) turned up around a bead core (5) in each bead portion (9), and a rubber bead filler disposed between the turnup portion (6B) and main portion (6A) of the carcass ply (6) and extending radially outwardly from the bead core (5) beyond the maximum section width point (K) of the tyre, th...