摘要:
An extrusion head having a stationary part fixed on an extrusion installation having a plurality of extrusion cylinders supplying an extrudate formed from several components. The stationary part has extrudate flow channels each in communication with a respective extrusion cylinder and a common extrusion die. Two pivotable outer parts pivotally hinged on the stationary part are selectively swingable individually between open and closed positions by respective piston-cylinder units. The two outer parts define an extrusion orifice for the die in their closed position. A pair of locking piston-cylinders provided with hammerhead piston rods hold the respective outer parts clamped against the stationary during an extrusion. Actuator piston-cylinder units selectively swing the piston rods of the locking piston-cylinder units clear of the outer parts for opening them for cleaning extrudate channels or for an extrusion die change. Two pivotable inner parts between the outer parts and the stationary part define extrudate channels jointly with outer parts and stationary part and are selectively swingable by a respective piston-cylinder unit and exposing corresponding flow channels of the stationary part for cleaning when the outer parts are open. The inner parts have lateral flanges with a respective recess into which is inserted a retainer piston rod of a corresponding piston-cylinder unit to retain the respective inner part closing a respective stationary part flow channel against residual extrudate in the absence of extrusion of extrudate therethrough.
摘要:
An extruder head for producing profiles of rubber and/or plastic mixtures has a stationay main part which has a forward face in which the discharge ends of at least two extruders, rigid with the stationary main part open. The stationary main part has a transverse pivot shaft at one side of the forward face and, at the side opposite the pivot shaft, an abutment which projects forwardly of the forward face. A movable main part is pivoted, with play, on the pivot shaft and is swingable between a closed position in which it overlies the forward face and an open position. An extrusion die unit is disposed between the outboard end of the movable main part and the abutment. Flow channels between the movable main part and the stationary main part lead from the extruders to the extrusion die unit. Hydraulically operated clamps hold the movable main part in closed position and a hydraulic servo motor exerts on the movable main part a force parallel to the forward face of the stationary main part and directed toward the abutment. In one embodiment, there are two movable main parts pivoted at opposite sides of the stationary main part and having an extrusion die unit between them.
摘要:
Common solar radiation receivers are equipped with a chamber for transmission of an operating gas which is directed along to an absorber for solar radiation for thermal absorption. The absorber has a dome-shaped entry window made of quartz glass, wherein the inner side facing the absorber assumes a nominal interior temperature Ti of at least 950° C. during proper use, preferably at least 1000° C., whereas the outer side facing away from the absorber is exposed to the environment and subject to risk of devitrification. The invention relates to modifying the known solar radiation receiver so that a high absorber temperature can be set and thus a high efficiency of the solar thermal heating is enabled, without increasing the risk of devitrification in the region of the outer side of the entry window.
摘要:
Regarding a sighting telescope reversing system which comprises a guide casing fitted with a linear cam slot, further an external casing fitted with an external cam slot and fixed in the axial direction while rotatably supported on the guide casing, a mount holding a lens element and fitted with a guide pin passing through the linear cam slot as well as through the external cam slot, the present invention stipulates that the guide pin be fitted with a first and a second collar, both collars resting on a common shaft, the first collar being displaceable within the external cam slot and the second collar being displaceable within the linear cam slot.
摘要:
The present invention relates to a method for detoxifying plant constituents from Jatropha, a detoxified material of Jatropha for producing a nourishment and uses thereof for producing a nourishment. Detoxification is performed with alkali (sodium hydroxyde) and short chain alcohol (methanol), resulting in removal of toxic phorbol esters.
摘要:
A combination load lock apparatus is provided, wherein a chamber is coupled to two or more valves in selective fluid communication with two or more respective volumes. A support member for supporting a workpiece is disposed within an interior portion of the chamber, wherein a translation apparatus is operably coupled thereto. The translation apparatus is operable to rotate and/or translate the workpiece on the support member about and/or along a first axis, wherein a detection apparatus associated with the chamber is operable to detect one or more characteristics of the workpiece during the rotation and/or translation thereof. The workpiece may be further rotated in a predetermined manner based on the one or more detected characteristics. A recess is further defined in the interior portion of the chamber, wherein the translation apparatus is operable to translate the workpiece into and out of the recess to reduce particulate contamination thereon.
摘要:
The invention relates to the use of an agent that contains 5 to 99.9% in weight of carbamide and/or at least a derivative thereof, as a cleaning agent for closed systems, in particular as a dishwasher detergent, as a laundry detergent for washing machines, as an agent for cleaning, sanitizing and/or disinfecting for equipment in the food processing industry and for medical equipment, the use as a hand dishwashing detergent or sanitary cleaner or as a hand cleaner. In addition, the invention relates to a method for reducing or avoiding enzymes in cleaning agents for closed systems, in hand dishwashing detergents or in sanitary cleaning agents as well as an enzyme-free dishwashing detergent or enzyme-free sanitary cleaning agent that contain 5 to 99.9% in weight of carbamides or derivates thereof. Finally, the invention relates to the use of percarbamide as a bleaching agent in particular in dishwashing detergents and in sanitary toilet cleaning agents.
摘要:
An ion implanter having a source, a workpiece support and a transport system for delivering ions from the source to an ion implantation chamber that contains the workpiece support. The ion source has an arc chamber for ionizing a source material routed into the arc chamber that defines an exit aperture for routing ions to the transport system and including an arc chamber flange attached to the arc chamber and including a first surface that defines a gas inlet which accepts gas from a source and a gas outlet which opens into the arc chamber. An arc chamber support includes a support flange having a conforming surface that sealingly engages the first surface of arc chamber flange at a region of the gas inlet and further includes a throughpassage that aligns with the gas inlet. A gas supply line routes gas from a gas source through the throughpassage of the support flange and into the gas inlet of said arc chamber flange.
摘要:
Dosimetry systems and methods are also presented for measuring a scanned ion beam at a plurality of points along a curvilinear path at a workpiece location in a process chamber. An illustrated dosimetry system comprises a sensor and a mounting apparatus that supports support the sensor and selectively positions the sensor at a plurality of points along the curvilinear path, wherein the mounting apparatus can selectively position the sensor to point toward a vertex of the scanned ion beam.
摘要:
A wobble drive in an axial piston machine, particularly the axial piston pump of a high-pressure cleaning device, having a wobble body (1) rotatable around an axis of rotation (D) and a wobble plate (2) driving with its front side at least one piston (10a) positioned parallel to the axis of rotation D, a roller bearing (3) positioned between the wobble body (1) and the wobble plate (2) exhibiting a bearing axis inclined to the axis of rotation (D). In order to insure even at elevated rotary speeds of the wobble body (1) and thus also of the rolling bodies (6) that the rolling bodies (6) are securely held in their races (4,5) in spite of the elevated centrifugal forces acting on them, it is proposed that the wobble plate (2) be provided with a rim (7) overlapping the wobble body (1), with the rolling bodies (6) being positioned between the rim (7) and the wobble body (1).