44 results about "Barium glass" patented technology

The invention relates to a light-cured composite resin for an oral cavity by using single crystal diamond as a filler, which belongs to the field of a medical oral cavity material. The resin comprises a resin matrix and the filler, wherein the filler comprises coupling barium glass powder and coupling diamond. The composite resin is characterized in that the coupling diamond comprises coupling single crystal diamond which accounts for 15-25 percent of the total weight of the composite resin, coupling glomerocryst diamond which accounts for 0-1 percent of the total weight of the composite resin and coupling nanometer diamond which accounts for 0-1 percent of the total weigh of the composite resin. The single crystal diamond is added as the functional filler, so that the flexural strength and the micro hardness of the prepared composite resin are observably increased, the maximum flexural strength value of the composite resin, which can reach 112.5MPa, can satisfy the requirement in a national medical standard that flexural strength value of the composite resin should be equal to or greater than 50 MPa, even can satisfy the requirement for the strength (greater than 80 MPa) of occlusal restoring materials.

The invention relates to a nano fluorine-containing resin dental material and a preparation method thereof and belongs to the technical field of light-cured resin dental materials and power dispersion methods. The resin dental material consists of a methacrylate monomer, an initiator and an inorganic filler, wherein the inorganic filter contains fluorine-containing glass powder, nano silicon powder, a pigment, strontium glass or / and barium glass and may contain nano YbF3 and Bi2O3. The preparation of the nano fluorine-containing resin dental material involves the silylanization of the fluorine-containing glass powder and the nano silicon powder and the technology for the ultrasonic dispersion of the nano silicon powder in an organic medium. The resin dental material of the invention has bioactivity, can resist dental caries and has ideal radiation resistance, transparency, tensile strength, wear resistance, density, rheological behavior and the like. Particularly, due to the combination of the fluorine-containing glass powder and the methacrylate monomer, excellent fluorine-releasing and excellent dynamic performance is achieved at the same time.

A fabrication method of T2 and T1 hot-cathode fluorescent lamps is provided, which comprises processing potassium / barium glass, lead glass or borosilicate glass to a lamp tube, with the outside diameter of the lamp tube being controlled within a range of 1-9 mm; connecting two wires by glass bead fusion sealing to form a core column; winding a tungsten filament to form a spiral filament and then connecting with the wires; coating electronic powder; sealing the lamp tube and exhausting; placing mercury pills or amalgam in the entrance path at one end of the lamp tube, introducing high-purity argon gas (400-1600Pa pressure) into the lamp after exhaust operation, heating the wires by means of induction with a high frequency furnace to heat the mercury pills or amalgam to produce mercury vapors. The invention solves the technical problem of the prior fabrication process of hot-cathode fluorescent lamps rated up to T3 specification, such as large processing difficulty, difficulty in sealing lamp, failure to hermetically connect the core column with the lamp tube, difficulty in controlling processing flame, and complicated exhaust process. The invention provides an ideal technical proposal for the fabrication of hot-cathode tricolor rare earth fluorescent lamps with a tube diameter less than or equal to 7mm.

The invention relates to a similar "Echinops latifolius Tausch." ball-flower-shaped fluoridated hydroxyapatite base dentistry composite resin and a preparation method thereof. The composite resin comprises fillers, a resin base body and a photoinitiator, wherein the filler is a compound of silane modified fluoridated hydroxyapatite and barium glass powders. The method comprises the following stepsof preparing similar "Echinops latifolius Tausch." ball-flower-shaped fluoridated hydroxyapatite (E-FHAp), preparing the silane modified E-FHAp and preparing the E-FHAp base dentistry composite resin. The method constructs the high-quality dentistry composite resin which combines excellent mechanical strength and functionality, and therefore, the mechanical property and the service performance ofthe dentistry repairing resin can be effectively improved.

The invention provides a carbonate rock original structure and pore type identification method. The method comprises the following steps: (1) cutting a circular slice from a carbonate rock sample; (2)pouring a blue reagent into pores of the circular slice in a high-pressure cavity; (3) grinding the slice filled with the blue reagent into sheets; and (4) placing a piece of white semitransparent barium glass or a piece of white paper between the sheet and a microscope stage, and observing the sheet by using a microscope so as to identify the original structure and the pore type of the carbonaterock. According to the carbonate rock original structure and pore type identification method provided by the invention, a carbonate rock sheet manufacturing method is improved, and an observation mode under the microscope is improved so that a microscopic imaging effect of residual particles and pores in the carbonate rock can be improved; and technical support is provided for correctly identifying the original structure and the pore type and enhancing reliability of sedimentary environment and reservoir formation cause interpretation.

The invention relates to a light-cured composite resin for an oral cavity by using single crystal diamond as a filler, which belongs to the field of a medical oral cavity material. The resin comprisesThe invention relates to a light-cured composite resin for an oral cavity by using single crystal diamond as a filler, which belongs to the field of a medical oral cavity material. The resin comprisesonal medical standard that flexural strength value of the composite resin should be equal to or greater than 50 MPa, even can satisfy the requirement for the strength (greater than 80 MPa) of occlustional medical standard that flexural strength value of the composite resin should be equal to or greater than 50 MPa, even can satisfy the requirement for the strength (greater than 80 MPa) of occlusal restoring materials.al restoring materials.a resin matrix and the filler, wherein the filler comprises coupling barium glass powder and coupling diamond. The composite resin is characterized in that the coupling diamond comprises coupling sin a resin matrix and the filler, wherein the filler comprises coupling barium glass powder and coupling diamond. The composite resin is characterized in that the coupling diamond comprises coupling single crystal diamond which accounts for 15-25 percent of the total weight of the composite resin, coupling glomerocryst diamond which accounts for 0-1 percent of the total weight of the composite resingle crystal diamond which accounts for 15-25 percent of the total weight of the composite resin, coupling glomerocryst diamond which accounts for 0-1 percent of the total weight of the composite resinand coupling nanometer diamond which accounts for 0-1 percent of the total weigh of the composite resin. The single crystal diamond is added as the functional filler, so that the flexural strength an and coupling nanometer diamond which accounts for 0-1 percent of the total weigh of the composite resin. The single crystal diamond is added as the functional filler, so that the flexural strength and the micro hardness of the prepared composite resin are observably increased, the maximum flexural strength value of the composite resin, which can reach 112.5MPa, can satisfy the requirement in a nad the micro hardness of the prepared composite resin are observably increased, the maximum flexural strength value of the composite resin, which can reach 112.5MPa, can satisfy the requirement in a nati

The invention relates to a high-temperature-chlorine-corrosion-resistant coating for a boiler heating surface, and a preparation method thereof. The coating comprises an inner transition layer and anouter protective layer, wherein the transition layer is a perhydropolysilazane precursor composite ceramic coating, the protective layer is an organic polysilazane precursor composite ceramic coating,the transition layer is formed by spraying surface of a steel matrix with a coating material consisting of 60-70% by volume of perhydropolysilazane, 10-20% by volume of graphite powder and 10-20% byvolume of butyl acetate and then curing at a high temperature of 200 DEG C, and the protective layer is formed by spraying the transition layer with a coating material consisting of 20-25% by volume of organic polysilazane, 25-30% by volume of barium glass powder, 15-20% by volume of zirconium oxide, 5-10% by volume of aluminum powder and 20-30% by volume of butyl acetate and curing at a high temperature of 700 DEG C. The coating is simple in preparation process and low in cost, can be suitable for high-temperature chlorine corrosion protection of heating surfaces of various biomass boilers, waste incineration boilers and high-chlorine coal boilers, and has the advantages of high toughness, compact surface, high thermal shock resistance and the like.

The invention discloses a PEEK false tooth composite. The PEEK false tooth composite is prepared from, by weight, 110-150 parts of polyether-ether-ketone, 10-20 parts of nano calcium silicate, 8-12 parts of hydroxyl hydroxyapatites, 4-8 parts of barium glass short fibers, 15-22 parts of organic solvent, 8-18 parts of refined paraffin, 1-4 parts of co-binding agent, 8-12 parts of binder, 2-6 parts of antibacterial agent, 6-10 parts of carbide and / or 8-15 parts of oxide. The invention further discloses a preparation method of the PEEK false tooth composite. The preparation method includes the steps that firstly, the raw materials of nano calcium silicate, hydroxyl hydroxyapatites, carbide and / or oxide are mixed, the mixture is heated to 150-220 DEG C, the situation is kept for 10-30 min, cooling is carried out, the refined paraffin is added, mixing and stirring are carried out, and after the mixture is crushed ultrasonically, the organic solvent, polyether-ether-ketone, the co-binding agent, the binder and the antibacterial agent are added to be stirred till uniform paste is obtained; finally the barium glass short fibers are added, ball-milling and drying are carried out, and the finished composite powder is obtained.

The present invention relates to a glass frit used in the aluminum paste used to form the aluminum electrode on the back surface of a solar cell, a glass frit manufacturing method, and an aluminum paste. , and will melt at the low temperature necessary for the manufacture of solar cells, etc., and the main components are only vanadium and barium glass frit. The invention provides a glass frit, which is: vanadium V with 55 to 80 mole % 2 o 5 And 15 to 30 mol% of barium BaO as the main material, or 10 to 55 mol% of vanadium V 2 o 5 and 10 to 40 mol% of barium BaO as a main material to produce glass frit by heating molten glass and rapidly cooling the molten glass to form pieces that are pulverized to produce a glass frit that melts below 650°C.

The invention relates to a glass ball, particularly relates to a lead-free potassium barium glass ball and a production process thereof, and belongs to the technical field of glass material. The glass ball comprises the raw materials by the mass percentage: 1.05-1.45% of sandstone, 6.0-10.0% of quartz sand, 8.5-12.5% of bauxite, 10.5-12.50% of limestone, 8.5-10.5% of broken glass, 15.2-16.3% of ascharite, 0.5-1.0% of titanium dioxide, 0.5-2.0% of niobium carbide, 1.52-1.56% of fluorite, 0.45-0.55% of a clarifying agent, and the balance pyrophyllite. While the glass ball is guaranteed to have the advantages of being high in whiteness, glittering and translucent, high in gloss, rich in refractive index, toughness and the like, the chemical stability, the thermal stability and the mechanical strength of the lead-free potassium barium glass ball are improved, and the crystallization tendency of the lead-free potassium barium glass ball is reduced, and the cost of production is greatly reduced.

The invention discloses a dental restoration material for stomatology and a preparation method thereof, and relates to the field of medical materials. The dental restoration material for oral science comprises: base resin, the above-mentioned base resin includes at least one of Bis-GMA and UDMA; filler, the above-mentioned filler includes modified silane coupling agent modified barium glass powder, modified silane coupling At least one of agent-modified micro-silica powder; photoinitiator. The dental restoration material prepared by the present invention has excellent mechanical strength, strong wear resistance, and low polymerization shrinkage; and the water absorption and solubility are significantly reduced, thereby enhancing the service life of the restoration material, reducing its toxicity in use, and reducing the risk of periodontitis Incidence, expanding the scope of use of restorative materials.

The invention provided a method for preparing barium-based glass frit with barium slag. The method comprises the following steps: barium slag is ground, and a barium slag slurry is prepared; the barium slag slurry is subjected to pipeline sulfuric acid leaching; hydrogen sulfide gas produced in the product is absorbed with sodium alkali, such that sodium sulfide is obtained; solid-liquid separation is carried out, and an iron aluminum sulfate water purifying agent is obtained; the solid is washed and dried; the dried solid is added into a glass frit furnace, and is molten in an oxidation atmosphere; the molten glass is subjected to water extraction, such that the barium-based glass frit is obtained. With the method provided by the invention, barium slag utilization rate is improved, and a high-barium glass frit (ceramic glaze material) is obtained. A glass material prepared with the high-barium frit has the advantages of less bubbles, high transparency and bright color, and has functions that cannot be found in common glass.

The invention belongs to the technical field of artificial teeth, and specifically relates to a process and production equipment for making artificial teeth by using PEEK resin composite materials. Put silk and PEEK resin powder into a platinum crucible and heat it up to 350-400°C to a molten state, and inject or press film into a rod of φ3-φ7mm; S2: According to the fine structure of human teeth, use CAD / CAM CNC machine tools to process the rod Processed into artificial teeth; S3: Put the artificial teeth into the ultrasonic cleaning equipment, control the water temperature at 50°C-70°C, and clean for 10-15 minutes; the present invention puts the artificial teeth into the placement grooves on the supporting plate in turn, and the motor The cam is driven to rotate, and through the extrusion between the cam and the bump and the gravity of the guide plate, the guide plate drives the piston and the artificial teeth to vibrate continuously, and each artificial tooth is cleaned separately to prevent a large number of artificial teeth from accumulating together, causing The artificial teeth inside it cannot be cleaned, which improves the cleaning effect of the ultrasonic cleaning equipment.

The invention relates to a "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and a preparation method thereof. The composite resin comprises a filler, a resin matrix and a photoinitiator, and the filler is a compound of silane-modified fluorinated hydroxyapatite and barium glass powder. The method comprises: preparation of "donkey bully mouth" flower spherical fluorinated hydroxyapatite (E-FHAp), preparation of silane-modified E-FHAp, preparation of E-FHAp-based dental composite resin. The method constructs a high-quality dental restoration resin with excellent mechanical strength and functionality, thereby effectively improving the mechanical properties and service performance of the dental restoration resin.

Disclosed is a solder additive for brazing of high nitrogen steel. The solder additive is composed of a reinforcing agent, a water-based adhesive and a BJQ mixture in a mass ratio of 1:7 to 8:3 to 5,the reinforcing agent being nickel-plated graphene or vanadium-plated graphene or a mixture of the nickel-plated graphene and the vanadium-plated graphene in any mass ratio, the BJQ mixture being a mixture of barium glass powder, fumed silica and tartaric acid in a mass ratio of 1:3.5:1. When the additive of the present invention is added to the solder for brazing, the high nitrogen steel base material hardly melts, so that the nitrogen element is not lost, overcoming the pore defects of the conventional welding method, so that the nitrogen element has almost no loss; and because the high nitrogen steel base material hardly melts, that is, no deformation is caused, and the connection strength and mechanical properties of the joint are improved to a certain extent, and the welded joint is formed very well.