92results about How to "Meet high temperature requirements" patented technology

The invention relates to an antistatic agent and polyurethane elastomer material containing the antistatic agent. The invention discloses an antistatic agent which is characterized by comprising materials of the following weight portions: 1 to 6 of emulsifier, 1 to 6 of nonpolar solvent, 1 to 3 of quaternary ammonium salt and 1 to 3 of metal salt. The invention also discloses polyurethane elastomer materials including 0.5 to 3.5 percent of the antistatic agent. The polyurethane elastomer material produced by using the antistatic agent has good antistatic performance; the surface resistivity reaches 10 to 10ohm, with high-efficiency and durable antistatic performance; besides, the antistatic agent has a good compatibility with other additives of the polyurethane elastomer products, meets the high-temperature requirement during the production process of the product and has no mutual impact on respective physical and chemical properties.

The invention relates to an intermediate adhesive for a high-heat-resistant conveying belt and a preparation method of the intermediate adhesive. The prepared product has good heat resistance and adhesion property. The preparation method comprises the following steps of: carrying out plastication on natural rubber on an open mill and inputting the prepared plastified rubber, ethylene propylene rubber and butadiene styrene rubber into an internal mixer to be subjected to banburying; then opening an upper ejector plug and adding reinforcement fillers, a vulcanizing activator, a vulcanization accelerator, a coupling agent, a plasticizer and an age resister to be subjected to banburying and carrying out stirring processing, chip discharging and normal temperature fan cooling to obtain a primary rubber compound; and carrying out secondary mixing, inputting the prepared primary rubber compound and a vulcanizing agent into the internal mixer to be subjected to mixing and carrying out stirring, chip discharging and normal temperature fan cooling to obtain the product, i.e. the intermediate adhesive for the high-heat-resistant conveying belt. After the intermediate adhesive for the high-heat-resistant conveying belt, which is disclosed by the invention, is used, not only is the requirement of the material conveying process in cement plants and steel mills on high temperature resistancemet, but also the intermediate adhesive can take a good adhesion transition effect on cover rubber and core rubber of the high-heat-resistant conveying belt, the delamination is prevented, the service life of the conveying belt is greatly prolonged and high economic benefits are realized.

The invention discloses a high-temperature stator rubber material and a preparation method thereof and belongs to the field of the rubber material and the preparation method thereof. The rubber material is prepared from, in parts by weight, 70-80 parts of hydrogenated butadiene-acrylonitrile rubber, 20-30 parts of carboxyl hydrogenated butadiene-acrylonitrile rubber, 70-80 parts of semi-reinforcing carbon black, 5-10 parts of zinc oxide, 1-2 parts of stearic acid, 10-20 parts of plasticizer, 3-5 parts of anti-aging agent, 2-3 parts of cross-linking agent and 1.5-2 parts of auxiliary cross-linking agent. The high-temperature stator rubber material is prepared from hydrogenated butadiene-acrylonitrile rubber and carboxyl hydrogenated butadiene-acrylonitrile rubber, the hydrogenated butadiene-acrylonitrile rubber and carboxyl hydrogenated butadiene-acrylonitrile rubber are co-vulcanized so that the high-temperature stator rubber material is capable of meeting the requirement on high temperature resistance, the hydrogenated butadiene-acrylonitrile rubber which is vulcanized by a sulfur-free vulcanization system is capable of resisting the high temperature of 180 DEG C at most, and the vulcanized product has excellent heat resistance, chemical stability and bonding strength, and furthermore, the rubber material has excellent bonding strength.

Elastomer-modified asphalt waterproofing membrane and preparation method thereof, elastomer-modified asphalt waterproofing membrane, is characterized in that it comprises base layer, petroleum asphalt layer, isolation material layer; base layer is covered with petroleum asphalt layer, petroleum asphalt The outer surface of the layer is covered with an isolation material layer; the petroleum asphalt layer is composed of: 40 parts of 10# asphalt, 15 parts of 90# asphalt, 3 parts of machine oil, 9 parts of modifier SBS, 6 parts of talcum powder, Guma 5 parts of Long resin, 7 parts of graphite, 7 parts of asphalt modified tackifier, and 8 parts of high-density polyethylene; the base layer is composed of 20 parts of polyester felt, 30 parts of glass fiber felt, Reinforced polyester felt is composed of 50 parts; it has good elongation performance, high high and low temperature resistance, water impermeability can reach 0.7MPa, and the product's low temperature flexibility can reach ‑40 ° C without cracks.

The invention relates to a flowmeter, in particular to a split-typed vortex flowmeter. The invention consists of sensors, a conditioning circuit module and a digital signal processing module, three kinds of sensors and the conditioning circuit module are positioned at a high temperature measured field, while the digital signal processing module is positioned in normal temperature environment, the modules are connected to each other through a shield cable, the signals are transformed in the form of differential signal. The invention solves the technical problem that original techniques can not be applied in high temperature environment; the invention can be applied in high temperature environment and special occasions which needs split-typed flowmeter. The invention has the advantages of good anti-jamming capability and high reliability.

The invention discloses a high temperature resistant multilayer piezoelectric ceramic actuator and a preparation method and a use thereof. A piezoelectric ceramic layer in the piezoelectric ceramic actuator comprises a piezoelectric ceramic material and a sintering agent, and the piezoelectric ceramic material is bismuth scandate-lead titanate binary piezoelectric ceramic material of the formula xBiScO3-(1-x)PbTiO3. The preparation method comprises the following steps: 1) mixing a bismuth source, a scandium source, a lead source and a titanium source, performing crushing to obtain a raw material mixture, and performing calcining to obtain a calcined powder; 2) mixing the sintering agent with the calcined powder, performing crushing, and molding the obtained mixture to obtain a piezoelectric ceramic diaphragm; and 3) preparing an internal electrode on the surface of the piezoelectric ceramic diaphragm, laminating and firing the obtained piezoelectric ceramic diaphragm with internal electrodes, preparing an external electrode and performing polarization to obtain the piezoelectric ceramic actuator. The piezoelectric ceramic actuator is suitable for the operating temperature range of25 DEG C to 300 DEG C and is low in cost.

The invention relates to a raw oil composite emulsification viscosity reducing agent, applied to maintenance of oil wells in oil-fields. The raw materials include (calculated by weight percent) A. oleate polyoxyethylene (5) ester: 0.5 to 1.5 percent; B. petroleum cyclocarboxylic alkanolamide sulfate 3 to 8 percent; C. fatty alcohol-polyoxyethylene ether 5 to 15 percent; D. sodium hydroxide 0.5 to 1.5 percent; E. soda 1.0 to 2.0 percent; F. sodium bicarbonate 1.5 to 3; G. FC-3B fluorocarbon surfactant 0.05% to 0.1 percent; H. water (the remainder). During daily maintenance of an oil well, addition of 100mg/l to 200mg/l of such agent can not only meet the requirement of daily viscosity reducing agent on high-temperature resistance, but also meet the requirement of anti-mineral salt. The invention can well reduce the viscosity of raw oil in oil-wells.

The invention discloses an insulating varnish and a preparation method thereof, belonging to the technical field of paints. The invention mainly overcomes the technical problem that a conventional insulating varnish does not have ideal insulating properties under the condition of high temperature. The insulating varnish comprises, by weight, 3 to 5.1% of dichloromethyl phenylsilane, 4 to 6.9% of monophenyltrichlorosilane, 2 to 3.5% of diphenyltrichlorosilane, 0.01 to 0.02% of zinc octoate and 20 to 30% of xylene, with the balance being tap water. The preparation method for the insulating varnish comprises the following steps: hydrolysis; washing; concentration; condensation; etc. The insulating varnish provided by the invention has a high insulation grade, strong high temperature resistance and a wide application scope.

The invention discloses a drinking water heating device with a water outlet nozzle in bypass connection with a water storage cavity. The drinking water heating device comprises a shell provided with the water outlet nozzle. The drinking water heating device is characterized in that a heater, a balanced water tank and a water pump are further arranged on the shell, one end of the water pump serves as a water pumping port, the other end of the water pump is communicated with the balanced water tank, the balanced water tank is connected with an inlet of the heater, an outlet of the heater is communicated with the water outlet nozzle, an outlet of the water outlet nozzle is connected with the water storage cavity, a water outlet is arranged on the water storage cavity, and a water outlet valve is mounted at the water outlet. The drinking water heating device has the advantages of large water outlet amount, low power requirement and diversity options of the heater.

The invention discloses a high-temperature fluidized bed reaction device, and belongs to the technical field of powder material production. The device comprises a high-temperature heating furnace body, a feeding cabin, an upper sealing flange, a high-temperature-resistance furnace pipe, an airflow regulator, and air distributor, a lower sealing flange and a discharging cabin, wherein the inner cavity of the high-temperature-resistance furnace pipe is served as a fluidized bed reaction cavity; the feeding cabin is connected with the top end of the high-temperature-resistance furnace pipe through the upper sealing flange; the bottom end of the high-temperature-resistance furnace pipe is connected with the discharging cabin through the lower sealing flange; the airflow regulator and the gas distributor are arranged in the high-temperature-resistance furnace pipe. According to the device, power material fluidization can be realized under a high-temperature environment, and the problems ofthe powder layering, hardening and the like of a conventional device in a reaction process due to an uneven atmosphere condition are avoided. Meanwhile, since a controllable feeding cabin and a controllable discharging cabin are designed, continuous material loading and unloading and quick material cooling can be realized, production efficiency is greatly improved, and production cost is lowered.

The invention provides a method for manufacturing a photovoltaic connector, comprising the following steps of: connecting a connector conductive body with a cable conductive body; placing the connector conductive body and the cable conductive body in a forming mold I, melting plastic I and then injecting into the forming mold I, cooling and taking out to finish the injection molding of a connection layer so as to form a connector body, wherein the melting temperature of the plastic I is between 180 DEG C and 250 DEG C; melting plastic II and then injecting into a forming mold II, cooling and taking out to finish the injection molding of a tapered end so as to form the tapered end, wherein the melting temperature of the plastic II is between 160 DEG C and 230 DEG C; and placing the tapered end and the connector body in a forming mold III, melting plastic III and then injecting into the forming mold III, cooling and taking out to finish the injection molding of a sealing layer so as to form the finished connector product, wherein the melting temperature of the plastic III is between 100 DEG C and 150 DEG C. In the invention, the technical process is simple; and the components of the plastic materials are not limited and are wider in choice, thereby having high flexibility in the actual production and being beneficial to controlling the cost.

The invention discloses an electromagnetic induction heating device and a water dispenser with the same. The electromagnetic induction heating device comprises a water pipe, a metal heating element, a flow guide part and an electromagnetic coil component, wherein the metal heating element is arranged in the water pipe, the flow guide part is arranged in the water pipe, and the electromagnetic coil component is arranged outside the water pipe and used for heating the metal heating element through electromagnetic induction. According to the electromagnetic induction heating device, by the aid of the electromagnetic induction heating technology, water temperature is increased to the temperature needed by boiling, and used materials can meet the requirements for high temperature resistance and sanitation.

The invention provides a low-thermal-conductivity spinel refractory homogeneous brick as well as a preparation method and application thereof, and belongs to the technical field of refractory materials. The low-thermal-conductivity spinel refractory homogeneous brick provided by the invention is prepared from the following raw materials: magnesia particles, magnesia fine powder, magnesium aluminate spinel particles, light hollow spheres, additive micro powder and a binding agent. The low-thermal-conductivity spinel fire-resistant homogeneous brick provided by the invention is uniform in material, the hidden danger that weak parts are easy to appear in a composite structure formed by different materials is avoided, and the problem that the composite brick is broken in the use process is avoided. Meanwhile, the low-thermal-conductivity spinel refractory homogeneous brick provided by the invention takes a periclase-spinel system as a matrix, is stable in high-temperature performance, is resistant to corrosion of alkali metals, volatile salts and the like, and is suitable for severe environments of rotary cement kilns or lime calcining kilns.

The invention provides a flange nut washer assembly to solve the problem of inconvenient operation when the flange nut and the washer are installed separately. The flange nut washer assembly includes a flange nut and a washer coaxially arranged, one end face of the washer is attached to the flange end face of the flange nut, and the end of the washer away from the flange nut is provided with an outer chamfer, The flange nut washer assembly also includes a clip-type structure for preventing axial relative displacement of the flange nut and the washer, and the clip-type structure includes a first pressing portion and a pressing portion for pressing the annular skirt of the flange nut. Tighten the second pressing part of the outer chamfer of the washer. The first pressing part and the second pressing part of the clip-type structure produce an axial clamping force on the flange nut washer assembly, so that the washer and the flange nut will not have axial relative displacement, so that the washer is fixed on the flange on the flange end of the nut. When installing, flange nuts and washers can be installed together for easy operation.

The invention relates to ethylene propylene rubber. The ethylene propylene rubber is prepared from the following components in parts by weight: 15-35 parts of ethylene-propylene methylene copolymer, 15-25 parts of ethylene-propylene-diene-terpolymer rubber, 1-6 parts of vulcanizing agent, 1-5 parts of anti-aging agent, 1-5 parts of white carbon black, 5-15 parts of acetylene black, 1-5 parts of attapulgite, 0.1-2 parts of stearic acid, 1-5 parts of cross-linking agent and 0.1-1 part of accelerator. The ethylene propylene rubber has the advantages that ethylene-propylene methylene copolymer and ethylene-propylene-diene-terpolymer rubber are used at the same time, and a vulcanization system is adjusted, so that the ethylene-propylene methylene copolymer and the ethylene-propylene- diene-terpolymer rubber are vulcanized at the same time, and the high temperature resistance requirement is met; the ethylene propylene rubber obtains low compression set, and a vulcanized product has good heat resistance, chemical stability and low compression deformation; white carbon black and phenolic resin are adopted, so that the processing fluidity of the ethylene propylene is improved.

The invention relates to a special sand mold coating material produced from alumina powder as a main raw material. The technical scheme is as follows: the special sand mold coating material comprisesthe following raw materials by weight: 5.3kg to 6.7kg of water, 10.75kg to 14.75kg of alumina powder, 6g to 10g of xanthan gum and 38g to 42g of polyethylene. According to the special sand mold coating material, the production cost of an electrically-fused brick sand mold coating material is greatly reduced, and the coating material cost of electrically-fused bricks per ton can be saved by about 200 RMB; the alumina powder has refractoriness capable of reaching 2,010 DEG C to 2,050 DEG C, and thus, the requirements of high-temperature resistant coating materials of electrically-fused brick sand molds on high-temperature resistance can be met; the market price of the alumina powder per ton is 3,200 RMB, and the use cost of the coating material can be greatly reduced as the electrically-fused brick sand mold coating material; and by using the alumina powder as the sand mold coating material, the fitness is higher, a layer of crust is formed after the coating material is sintered, thus, gas generated from resin combustion is prevented from polluting brick faces, crusts formed by the coating material at high temperatures will successfully and naturally fall off during brick discharging, the brick faces are more convenient in cleaning, and the efficiency of cleaning of the brick faces is increased.

The invention discloses water-based vehicle lamp reflecting cover film-coating paint and a preparation method thereof, relating to vacuum film-coating paint. The paint consists of the following components in percentage by mass: 100 percent of acrylate resin, 15-30 percent of epoxy resin and 20-35 percent of amino resin, wherein the acrylate resin consists of the following components in percentage by mass: 100 percent of butyl acrylate, 18-22 percent of hydroxyethyl methylacrylate and 8-12 percent of methacrylic acid. The preparation method comprises the following steps: adding the butyl acrylate, the hydroxyethyl methylacrylate and the methacrylic acid into a container, adding a mixed solvent of diacetone alcohol and n-butyl alcohol, stirring at 95-105 DEG C, dissolving benzoyl peroxide in a diacetone alcohol solvent, adding a benzoyl peroxide-diacetone alcohol solution, and reacting to obtain an acrylate resin solution; adding the epoxy resin and the amino resin into the mixed solvent of diacetone alcohol and n-butyl alcohol, adding an obtained epoxy resin-amino resin solution into the acrylate resin solution, reacting to obtain solvent type paint, and adding distilled water to obtain a product.

The invention discloses a hybrid antibacterial peptide Mel-MytB and an application thereof. A hybrid antibacterial peptide Mel-MytB gene is cloned into a pPICZalpha-A vector to construct a secretory recombinant yeast expression vector pPICZalpha-A-MEM, and a P. Pastoris receptor bacterium X-33 is transformed. The Mel-MytB hybrid antibacterial peptide having a molecular weight of about 3.0 kD is expressed under the control of an alcohol oxidase promoter. Antibacterial property researches show that the expressed product has broad-spectrum antibacterial activity, and has good antibacterial activity against most G- bacteria and G+ bacteria; and the hybrid antibacterial peptide has significantly better inhibition activity to common pathogenic bacteria than original antibacterial peptides. The hybrid antibacterial peptide Mel-MytB has thermal stability and acid stability. All above characteristics make the recombinant antibacterial peptide Mel-MytB have good application prospects in fields of disease prevention and control and animal feed additives.