摘要:
A wear resistant component for comminution of particulate material includes a steel body and a leading portion of cemented carbide attached to a front portion of the steel body. The wear resistant component includes a wear resistant coating of a metal matrix composite attached to at least one face of the steel body connected to the leading portion.
摘要:
A roller with replaceable edge reinforcements is provided. A plurality of removable edge reinforcements are disposed radially along the peripheral edge of the end face of the roller. The reinforcements are slidably connected to the end face of the roller, either directly or indirectly, using male and female interlocking members, preferably in a U-shaped dovetail. The edge reinforcements are constructed from a suitably hard material and accept wear in place of the peripheral edge of the roller itself. In some embodiments, a pin and dimple arrangement is provided to assist the sliding engagement of the male and female members. A tool recess may also be provided to assist with removing the edge reinforcements.
摘要:
A refiner includes a main body, a rotation shaft provided inside the main body, a tapered rotor attached to the rotation shaft with a space therein, a stator provided in the main body, a rotor beating portion provided on the rotor and having a groove between bars and through-holes, a stator beating portion on the stator with a groove between bars and through-holes, a raw material supply portion for supplying a raw material into the main body, and a raw material discharge portion for discharging a beaten raw material outside the main body. A portion of the raw material guided to a small-diameter opening portion of the rotor and the space of the rotor is beaten by passing through the through-holes of the rotor beating portion and the stator beating portion, and is discharged outside the stator beating portion from the through-holes of the stator beating portion.
摘要:
A grinder roller assembly and a method of forming a grinder roller assembly are provided. The grinder roller assembly includes an elongated shaft that comprises a shaft outer surface. The grinder roller assembly further includes an insert plate. The insert plate has a plate outer surface that is noncircular and substantially smooth. The insert plate further has a plate opening that defines a plate inner surface and is configured to receive the elongated shaft. The grinder roller assembly further includes a roller having a roller opening that defines a roller inner surface that cooperates with the plate outer surface. The grinder roller assembly further includes at least one fastener that attaches the insert plate to the elongated shaft.
摘要:
A roller shell for a conditioning roller has grooves extending in the axial direction and grooves extending in the circumferential direction. The grooves extending in the axial direction are deeper than the grooves extending in the circumferential direction.
摘要:
The grinding roller of a roller mill according to the invention consists essentially of a roller shaft, a main roller body and an external wear ring having a wear protection, wherein the connection between the roller shaft and the main roller body is formed by a shrink fit. The main roller body is formed by at least two coaxially arranged intermediate rings.
摘要:
The present invention relates to polycrystalline silicon chunks which are cubic and have a metal content of less than 200 pptw and a dopant content of less than 50 ppta. Methods for producing polycrystalline silicon chunks, include the steps of providing a polycrystalline silicon rod, comminuting the polycrystalline silicon rod into cubic chunks, and cleaning the polycrystalline silicon chunks, wherein comminution takes place using a spiked-roll crusher having at least one spiked roll, the spiked roll including W2C phases or WC phases with 0.1-10% of a metal carbide selected from the group consisting of titanium carbide, chromium carbide, molybdenum carbide, vanadium carbide, and nickel carbide or consisting of steel with 1-25% W.
摘要:
Provided are a method and an apparatus for preparing medicines. The method for preparing medicines includes a distribution step of distributing at least one pill into at least one medicine packet and a crushing step of applying a pressure to the medicine packet with the pill to crush the pill. The apparatus for preparing medicines includes a distributor configured to distribute at least one pill into at least one medicine packet and a crusher configured to apply a pressure to the medicine packet with the pill to crush the pill.
摘要:
Described is a wear-resistant roller component for handling abrasive materials where the component comprises a metal body with at least one surface. It is characterized in that a metal template having a pattern of through-going holes is arranged on the at least one surface of the metal body and in that a cover arranged to cover at least a part of the metal template is located at a distance from the metal template to form a gap between the cover and the metal template and in that a powder material suitable for sintering is introduced into the through-going holes in the metal template through the gap and in that the metal body, the metal template, the cover and the material powder are bonded together by means of a sintering process.
摘要:
In one aspect of the present invention, a high impact resistant tool comprises a sintered polycrystalline diamond body bonded to a cemented metal carbide substrate at an interface, the body comprising a substantially pointed geometry with an apex, the apex comprising a curved surface that joins a leading side and a trailing side of the body at a first and second transitions respectively, an apex width between the first and second transitions is less than a third of a width of the substrate, and the body also comprises a body thickness from the apex to the interface greater than a third of the width of the substrate.