33 results about "Cavity Liner" patented technology

Remineralizing dental cements contain source(s) of calcium and phosphate ions, adhesive resin monomers, reinforcing base resin monomers, and catalysts able to initiate the polymerization of the adhesive and reinforcing base resin monomers. Such dental cements can be used as orthodontic cements, crown and bridge cements, adhesives, sealants, cavity liners, and protective coatings. The release of calcium and phosphate ions and, optionally, fluoride ions, protects tooth structure from demineralization, a precursor of tooth decay.

A battery system assembly for a bicycle is provided. The battery system assembly includes a frame cavity liner, a first cover slideably attached to the frame cavity liner and movable between a first position and a second position with respect to the frame cavity liner, a first magnet interposed between the frame cavity liner and the first cover, a battery container configured to accommodate a rechargeable battery and having a second magnet disposed to face the first magnet, said battery container detachably attached to the frame cavity liner. When the first cover is located at the first position, the frame cavity liner and the battery container are attached one another by magnetic force between an aligned first magnet and second magnet. When the first cover is located at the second position, the first magnet and the second magnet repel each other, thereby detaching the battery container from the frame cavity liner.

A high-temperature containment-isolation system for transferring heat from a nuclear reactor containment to a high-pressure heat exchanger is presented. The system uses a high-temperature, low-volatility liquid coolant such as a molten salt or a liquid metal, where the coolant flow path provides liquid free surfaces a short distance from the containment penetrations for the reactor hot-leg and the cold-leg, where these liquid free surfaces have a cover gas maintained at a nearly constant pressure and thus prevent high-pressures from being transmitted into the reactor containment, and where the reactor vessel is suspended within a reactor cavity with a plurality of refractory insulator blocks disposed between an actively cooled inner cavity liner and the reactor vessel.

The invention belongs to the technical field of mechanical equipment, and relates to a press slide block assembly, in particular to a ball bowl of a press slide block assembly and a processing method thereof. It solves technical problems such as unreasonable existing technologies. It includes a cylindrical base, and a bowl cavity is provided at one end of the base. It is characterized in that the base is made of steel, and a bowl made of copper is cast in the bowl cavity. A bushing, a steel-copper interpenetration layer is formed between the bowl-shaped bushing and the bowl cavity, and the center of the inner bottom of the bowl-shaped bushing is provided with an oil storage and dirt storage depression, and the inner side of the bowl-shaped bushing is provided There is a lubricating groove structure located above the oil storage and dirt storage depression. Compared with the existing technology, the advantages of the ball bowl of the press slider assembly and its processing method are: reasonable design, simple structure, high mechanical strength, can greatly reduce manufacturing costs, and only need to replace the bowl after wear and tear The type bushing can be reused after repairing, without the need for complete replacement, so the cost of use is also greatly reduced.

The invention discloses a vertical type sludge thin layer drying device, which comprises a sludge inlet section, an evaporation section, a sludge outlet section and a heat conduction oil pipe, wherein the sludge inlet section and the evaporation section form a heating cabin, a rotary main shaft with a rotary scraper and an oil cavity liner is arranged in the heating cabin, the rotary main shaft is composed of a sludge inlet section shaft, an evaporation section shaft and a sludge outlet section shaft, an evaporation cylinder of the heating cabin is provided with a fixed scraper, the evaporation cylinder is provided with an oil cavity outer container, and a fixed heat conduction oil inlet in the evaporation cylinder, a fixed heat conduction oil outlet in the evaporation cylinder, the oil cavity outer container and an oil pipe form a fixed oil line system; an oil line is arranged in the evaporation section shaft, the sludge inlet section shaft is provided with a rotary heat conduction oil outlet, the sludge outlet section shaft is provided with a rotary heat conduction oil inlet, and the rotary heat conduction oil inlet, the rotary heat conduction oil outlet, the oil line in the shaft, an oil cavity container and an oil pipe form a rotary oil path system; a flange of the sludge inlet section is provided with a sludge inlet and a steam outlet, and a flange on the sludge outlet section is provided with a sludge outlet. The heat transfer efficiency in the drying process is high, the heat loss is relatively low, the dust is basically avoided, the drying process is independent of dry sludge backmixing, and the sludge with water content of 85-70% can be dried to water content of 50-35%.

The invention discloses an intraluminal liner (1) for lining the interior of a hollow organ, the intraluminal liner (1) comprising a flexible tubular sleeve body (3), At least one anchoring portion (6) formed at the tip (4) for connecting said sleeve body (3) to said hollow organ, between said anchoring portion (6) and said sleeve body (3) The separation zone (7) formed between, and the pull-activated separation member (8) that is combined in the separation zone (7) and forms the activation pull ring (9) makes it possible to pull the activation pull ring ( 9), the separation member (8) causes breakage of the separation zone (7) and separation of the sleeve body (3) from the anchoring portion (6).

The invention discloses performing device for a semiconductor cavity. The performing device for the semiconductor cavity comprises a reaction cavity, a preforming frame and a chip-mounting mechanism. The preforming frame is arranged at the upper portion of the reaction cavity. A cavity liner is arranged inside the reaction cavity and connected with the preforming device. The chip-mounting mechanism is arranged at the lower end of the preforming frame. The performing device for the semiconductor cavity not only increases chip-sending space, enables chip-sending to be fast, improves stability of structure of the preforming frame, and further improves preforming quality and efficiency.

The invention discloses a sand core hoisting sling for a crankshaft cylinder liner cavity of a diesel engine body. The upper part of the tubular sling main body is bent, and the bent position bypasses the plane of the sand core and is in the middle of the "V"-shaped cylinder liner cavity of the sand core. , the difference between the bend and the plane is greater than half the thickness of the sand core, the top of the main body of the spreader is fixed with lifting lugs, and the bottom of the spreader is installed horizontally and forwardly from top to bottom. The distance between the pipe strings is equal to the distance between the upper pipe string lifting hole and the lower pipe string lifting hole in the middle of the crankshaft cavity at the lower part of the sand core. The rear part of the tool body passes through the center hole of the upper pipe string and is connected with the external eccentric rod. The diameter of the eccentric rod is consistent with the diameter of the upper pipe string and can be inserted into the lifting hole of the upper pipe string. The lower pipe string can be inserted To the lifting hole of the lower pipe, the surface of the eccentric column is threaded. The sand core hoisting sling for the crankshaft cylinder liner cavity of the diesel engine body is easy to manufacture, simple to operate, economical and practical.