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 perforating gun, perforating gun system, and method for producing the same is provided. The perforating gun includes a body and at least one cavity liner. The body has an axial length extending between a first axial end and a second axial end, and an outer radial surface extending between the first and second axial ends, an inner bore, and at least one shaped charge cavity disposed in the outer radial surface. The at least one shaped charge cavity is in fluid communication with the inner bore. The at least one cavity liner is disposed in the shaped charge cavity and is configured to retain an explosive material within the shaped charge cavity.

Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).

The invention relates to a corrosion depth test method for a PVC highly-dense viscous steel wire grid. The method includes the steps that firstly, a sample to be tested is installed at the top of a test cavity liner and fixed through fixing bolts, a sulfuric acid solution is put into an evaporator and a liquid storage tank, a valve is switched on, an electric heater is started to heat the evaporator, liquid in the evaporator boils and then generates corrosive gas, the generated corrosive gas enters a test cavity through finned heat exchange tubes arranged in a steam heater, redundant corrosive gas in the test cavity enters a recovery device through an air outlet, and liquid condensed on the test cavity liner enters the recovery device through a liquid discharge port, wherein the controlled temperature of the electric heater is 100-150 DEG C, the controlled temperature of the steam heater is 80-160 DEG C, and a calcium hydroxide solution with the mass concentration of 10% is used for treating waste liquid and tail gas. The method provides a fast, simple and convenient test means for studying the corrosion mechanisms of various steel wire grids and evaluating corrosion-resistant steel wire grid materials.

The invention discloses a dual-pulse solid rocket engine soft interlayer ablation test device comprising an end combustion powder charging cavity, a test piece ablation cavity, a spray pipe cavity anda center cube connector (5). The end combustion powder charging cavity and the test piece ablation cavity are symmetrically installed at the two ends of a through hole of the center cube connector (5). The spray pipe cavity is connected with the third hole of the center cube connector (5). An end combustion powder charging cavity blocking cap (1), an end combustion powder charging cavity shell (2), the center cube connector (5), a spray pipe cavity shell (6), a spray pipe cavity rear section (9), a test piece ablation cavity shell (11) and a test piece ablation cavity blocking cap (14) of thetest device are all made of high-strength 45 steel material. An end combustion powder charging cavity liner (3), a spray pipe cavity liner (7), a spray pipe cavity rear section liner (10) and a testpiece ablation cavity liner (12) are all made of ethylene propylene terpolymer material. A spray pipe cavity throat liner (8) is made of graphite. Through the dual-pulse solid rocket engine soft interlayer ablation test device, the problems that the work process of a dual-pulse engine ii pulse soft interlayer is difficult to simulate and observe are solved.

The invention provides a microwave oven cavity liner and processing method, which comprises a microwave oven cavity liner body and a support connecting plate. The microwave oven cavity liner body is a whole, which consists of a body front plate and a cavity body. The support connecting plate is fixed in the lower end of the microwave oven cavity liner body. A rivet hole is arranged on the lower end of the microwave oven cavity liner body. The support connecting plates are connected by rivets. The lower end of the microwave oven cavity liner body may be connected with the support connecting plate by welding. Therefore, the producing process is simplified. The percent of pass of product and producing efficiency are improved. The strength of microwave oven cavity liner is improved.

The present invention relates to methods and compositions of dental materials containing nano-sized calcium phosphate and other fillers that release calcium, phosphate and fluoride. This invention further relates to dental compositions for restorations, stress-bearing applications, artificial crowns, anterior and posterior tooth fillings, adhesives, cavity liners, cements, bases, orthodontic devices, prostheses, and sealants utilizing high stress-bearing materials that release materials for the remineralization of decayed tooth structures.

This disclosure provides systems, methods and apparatus for electromechanical systems devices with improved electrical properties and device life span. In one aspect, a conformal antistiction layer is formed within a cavity of an electromechanical systems apparatus over a roughened surface. The conformal antistiction layer can include a dielectric layer. The conformal antistiction layer can include a self-assembled monolayer (SAM) formed over the dielectric layer. The conformal antistiction layer can replicate the roughness of the surface that it is deposited on.

The invention discloses a construction method of a furnace cavity liner of a garbage incinerator, comprising the following steps: material proportioning, ramming construction, anchoring and drying, wherein ramming materials in the material proportioning step comprise the following components in percentage by weight: 1.2-1.5% of Fe2O3, 7-10% of Al2O3, 72-85% of SiC and 5-17% of silicates couplant;and the drying temperature is a constant temperature of 250 DEG C in the drying step. The ramming materials have excellent chemical stability, abrasion resistance, anti-strip property and heat shock resistance, obviously enhanced abrasion resistance and heat conductivity, enhanced compressive strength and apparent porosity, simple construction and material saving; in addition, the constructed liner has the advantages of compact combination, difficult deformation after being formed, and the like; the service life of the liner of the garbage incinerator is prolonged; and the using and maintenance costs are saved.

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 provides a TV packaging device, which relates to the technical field of TV, and is invented for monitoring the impact of the TV during transportation and standardizing logistics operations. The packaging device includes a liner for fixing the TV. The liner is provided with a monitoring assembly. The monitoring assembly includes a cavity arranged on the side wall of the liner. The cavity is covered with a cover plate. Between the cavity and the cover plate A baffle is arranged along the horizontal direction, and the left and right ends of the baffle extend toward the top of the TV to form a concave portion, and a metal sheet is arranged in the concave portion of the baffle, and there are gaps between the left and right ends of the baffle and the side walls of the cavity for use The metal sheet passes through the gap. When the liner falls to a specific angle with the TV, the metal sheet is affected by gravity, slides out along one end of the baffle, and slides down to the bottom of the baffle through the gap.

This invention is a classic dental shepherd's hook explorer that has been fitted with a dycal style ball on the end, for a completely new instrument designed to facilitate exacting placement of cavity liners and bases, spreading flowable composite underneath fillings by the Dentist, and placing Interim Therapeutic Restorations (ITR) such as fluoride releasing glass ionomer by the Dentist or Registered Dental Hygienist Expanded Functions (RDHEF).

Doctors then can reach over matrix bands and apply dental bases and liners, or spread flowable composite directly to the axial wall and pulp floor of their preps, and RDHEF's can access hard to reach interproxirnal, root and furcation areas to apply glass ionomer or other Interim Therapeutic Restorations where incipient caries have been hand excavated.

The invention relates to a die cavity core assembly method, comprising the steps as follows: a die cavity substrate and a die cavity core with forming surfaces are provided; the die cavity substrate is provided with a die closing surface; the die cavity substrate is also provided with a die core cavity which passes through the die cavity substrate; the die cavity substrate is horizontally arranged on a workbench; the die closing surface of the die cavity substrate faces to the workbench; furthermore, a plurality of supporting parts with the same height are arranged between the die closing surface and the workbench of the die cavity substrate; the forming surface of the die cavity core faces to the workbench; furthermore, the die cavity core is arranged into the die core cavity.

This invention is a classic dental cow horn explorer that has been fitted with dycal style balls on the ends, for a completely new instrument designed to facilitate exacting placement of cavity liners and bases, spreading flowable composite underneath fillings by the Dentist, and placing Interim Therapeutic Restorations (ITR) such as fluoride releasing glass ionomer by the Dentist or Registered Dental Hygienist Expanded Functions (RDHEF).

Doctors then can reach over matrix bands and apply dental bases and liners, or spread flowable composite directly to the axial wall and pulp floor of their preps, and RDHEF's can access hard to reach interproximal, root and furcation areas to apply glass ionomer or other Interim Therapeutic Restorations where incipient caries have been hand excavated.

The invention discloses an auxiliary electric heater for air conditioners, which comprises an electric heater shell (1), a sealing end cover (2), a wiring board (3), a lead coil (4), a flange plate (5), an electric heater Heater base (6), temperature control tube (7), electric heater (8), liner (9), overheating protector (10) and insulation layer (11), the upper part of the electric heater shell is provided with a water inlet port (12) and water outlet port (13), one end of the electric heater casing is connected to the sealing end cover through a flange, the electric heater base is provided at the lower end of the electric heater casing, and a matching liner is provided inside the electric heater casing There are temperature control tubes and electric heaters in the cavity of the liner, and a terminal board and an overheat protector are provided in the sealed end cover. The terminal board is connected with the overheat protector, the terminal board is connected with the electric heater, and the sealed end A lead wire is provided on one side of the cover, and an insulating layer is provided on the inner and outer walls of the liner. The invention adopts the auxiliary electric heater for the air conditioner, and the structure design is reasonable.

The invention relates to a multi-functional heating furnace comprising a main heating furnace body, a coaling port, a heating water outlet, a heating water inlet, a heating water jacket, a smoke outlet and a slag removal port, wherein an unsealed furnace cavity is connected below the coaling port; the smoke outlet is provided with a radiator; the furnace cavity is internally provided with a tubular grate smoke guide pipe and is formed into an independent furnace cavity liner; the periphery and the bottom of the main heating furnace body are provided with a heat preserving layer and a shell; the outer surface of the furnace cavity liner is provided with baffle plates (1, 2); the smoke outlet of the furnace cavity liner is communicated with a smoke gas inlet of the tubular grate smoke guide pipe; a smoke gas outlet of the tubular grate smoke guide pipe is connected with an arc-shaped plate (1), and the arc-shaped plate(1) is respectively connected with the baffle plate (1) and the outer wall of the furnace cavity liner, which is positioned at one side of the smoke gas outlet of the tubular grate smoke guide pipe; the baffle plate (2) is connected with an arc-shaped plate (2), and the arc-shaped plate (2) is connected with the outer wall of the furnace cavity liner, which is positioned at one side of the smoke gas inlet of the tubular grate smoke guide pipe; and the heating water jacket is separated from the furnace cavity liner through air. The invention has the advantages of good heat preserving effect, civil and industrial use, energy saving, environmental protection and convenience for use.