41results about How to "Solve high temperature oxidation" patented technology

The invention provides a solar spectrum selective absorbing coating and a preparation method thereof, wherein the preparation method comprises the following steps of: (1): selecting copper or stainless steel as substrate material; (2): selecting high-temperature oxidation resisting TiAlN as a diffusion impervious layer, using pure metal Cu or Al as a high infrared reflective layer, wherein an absorbing layer consists of two conductive particle-ceramic (AlN) composite layers with different volume percentages of metal nitride conductive particle (TiAlN), using AlN as an antireflection layer, and using SiO2 as a protective layer; (3): controlling components and contents of different film materials by controlling the gas flow and the sputtering power and the like; (4): before placing the substrate material into a vacuum chamber, carrying ultrasound treatment on the substrate material for 10-30 min, drying, after placing the substrate material into the vacuum chamber, roasting for 10-30 min at 100-120 DEG C, before sputtering, bombarding the surface by argon ions; and (5): obtaining a coating with a multi-layer structure, which has high absorption rate Alpha (0.95 +/- 0.02) in the solar spectral region (0.3-2.5 micrometers), and which has quite low emissivity Epsilon (0.04 +/- 0.01) in an infrared region (2.5-50 micrometers).

The invention discloses a glass heating graphite mold and a production method thereof. The mold comprises a front mold and a rear mold, wherein the front mold comprises a front mold base and a front mold core made of a graphite material; the rear mold comprises a rear mold base and a rear mold core made of the graphite material; a cavity matched with the front mold core is formed in the front mold base; the front mold core is arranged in the cavity of the front mold base; a cavity matched with the rear mold core is formed in the rear mold base; the rear mold core is arranged in the cavity of the rear mold base; intermediate areas of opposite surfaces of the front mold core and the rear mold core are three dimensional curved surfaces suitable for processing to obtain hot bending glass during mold closing; edge areas of the opposite surfaces of the front mold core and the rear mold core are respectively provided with a plurality of supporting insert via holes; supporting inserts are arranged in the supporting insert via holes; when the mold is closed, the supporting inserts, which are oppositely arranged, on the front mold core and the rear mold core, make contact with one another, so that the effects of positioning and supporting the mold cores are realized, and the pressures of the mold cores are borne. According to the glass heating graphite mold disclosed by the invention, large-scale mass production is easily realized while the molding quality of the graphite mold is improved.

The present invention relates to a modular tubular solid oxide fuel cell power generation system, belonging to a power generation equipment. Said invention is formed from the following components: single-cell, combustion chamber, base seat, oxidant (air) input tube and fuel input tube. Said invention also provides the concrete structure of the above-mentioned every component. Said invented structure also includes an indirect internal reforming system, so that it can fully utilize hydrogen gas component of fuel, and can raise stability and performance of cell work.

The invention discloses a motor rotor. The motor rotor comprises a rotor core in which an axle hole is arranged, wherein the periphery of the axle hole is provided with multiple inner rotor slots and multiple outer rotor slots all which are spaced along the radial direction of the rotor core and along the circumferential direction of the rotor core, and each inner rotor slot is arranged inside the outer rotor slot along the radial direction of the rotor core; the motor rotor further comprises multiple inner conductive strips, multiple outer conductive strips and an end short-connection ring; said multiple inner conductive strips are respectively inserted in said multiple rotor slots, said multiple outer conductive strips are respectively inserted in said multiple outer rotor slots, and the electrical conductivity of each outer conductive strip is different from that of the inner conductive strip; the end short-connection ring is arranged on both ends of the rotor core, and said inner conductive strips and said outer conductive strips are respectively connected through the end short-connection ring. According to the motor rotor, the motor is better in start ability, and higher in operation efficiency, meanwhile high-temperature oxidation can be effectively avoided in a formation process, and the process can be simply and conveniently realized.

The invention relates to the technical field of thermophysical parameter test on materials, and particularly relates to a system for testing the high-temperature spectral emissivity of materials based on effective radiation. The system comprises a water-cooling vacuum chamber, a vacuum radiation heating unit, an effective radiation cavity and a radiation measurement and calibration unit, the test on the spectral emissivity of materials is performed through the combination of the water-cooling vacuum chamber, the vacuum radiation heating unit, the effective radiation cavity and the radiation measurement and calibration unit, in the process of testing, a blackbody origin is not required to be referenced, and the temperature of materials is not required to be known precisely, thereby reducing the testing difficulty and improving the testing precision; and through placing test samples in the water-cooling vacuum chamber, the high-temperature oxidation problem of test samples is avoided.

The invention discloses a chip-type through-hole gold electrode chip capacitor and a preparation method thereof. The preparation method comprises the following steps of taking a low-sintered X7R ceramic material of a barium titanate system as a main base material, enabling an oxidant and a glass sintering aid to be grinded and mixed according to a proportion, and then drying the mixture to obtaina dry mixture; performing pre-burning on the dried mixture, and carrying out drying, crushing and refining to obtain multi-layer low-temperature sintered capacitor ceramic powder; enabling the multi-layer low-temperature sintered capacitor ceramic powder, absolute ethyl alcohol and a dispersing agent, a defoaming agent and an adhesive to be mixed and ball-milled to obtain slurry, enabling the slurry to be poured on a PET carrier film of an injection port of a casting machine, wherein a stable and tough micron-scale thickness ceramic membrane strip is formed after the mixture passes through a scraper and a heating region; and equivalently, a capacitive element which integrates the advantages of an MLCC and an SLC can be prepared by simulation design of the product structure parameters, development of the low-sintered ceramic dielectric material, application of filling hole gold slurry and inner electrode gold slurry, an end surface electrode forming mode and other process technologies.

The invention discloses a lubricating oil antioxidant composition. The composition is prepared from an amine antioxidant and tetraalkyl phosphonium phosphate ionic liquid in a ratio of 1: 100-100:1. The lubricating oil antioxidant composition has excellent oxidation resistance in synthetic ester base oil, can remarkably prolong the oxidation induction period of the base oil and prolong the servicelife of lubricating oil, and is particularly suitable for lubricating working conditions with strict high-temperature requirements.

The invention belongs to the technical field of infrared stealth, and particularly relates to a high-temperature-resistance and antioxidant infrared low-emissivity composite film and a preparation method thereof. The high-temperature-resistance and antioxidant infrared low-emissivity composite film is of a double functional layer superposition structure and sequentially comprises a low-emissivityfunctional layer and an oxidation isolation layer from bottom to top; and during using, the lowest layer of the high-temperature-resistance and antioxidant infrared low-emissivity composite film covers the surface of a target object, the low-emissivity functional layer is a high-temperature conductive ceramic film continuously formed, and the oxidation isolation layer is an Al2O3 film. According to the high-temperature-resistance and antioxidant infrared low-emissivity composite film, the emissivity at 8-14 [mu]m is less than 0.1 after being used in 750 DEG C high temperature and aerobic environment for 2 h, the emissivity and high temperature stability are excellent, and the preparation method of the high-temperature-resistance and antioxidant infrared low-emissivity composite film is simple and easy to operate and low in cost.

The invention discloses a ceramic-based high-thermal-conductivity composite phase-change heat storage material and a preparation method thereof. The ceramic-based high-thermal-conductivity composite phase-change heat storage material is prepared from the following raw materials in percentage by mass: 50 to 70 percent of inorganic salt, 20 to 50 percent of aluminum nitride and 5 to 15 percent of water. The preparation method comprises the following steps: weighing inorganic salt and aluminum nitride according to a formula ratio, uniformly stirring the components, adding water, mixing the components, and molding the mixture to prepare a composite phase change heat storage material precursor; then sealing and packaging the precursor, and placing in a blast drying oven for low-temperature reaction to prepare a green body; and finally, heating and sintering the green body to obtain the ceramic-based high-thermal-conductivity composite phase change heat storage material. The heat-conductingceramic-based framework is prepared in one step through an in-situ reaction method, the heat conductivity of the composite phase-change material is greatly enhanced while eutectic phase-change salt ispackaged, and the heat conductivity can reach 4 W/m.K or above; due to the adoption of micron-sized raw materials, the production cost can be remarkably reduced, and the potential of industrial production is achieved.

The invention discloses a preparation method of grease-containing seabuckthorn turbid juice, belonging to the technical field of deep processing of agricultural and sideline products. Specific to theproblems of loss of a large quantity of nutrient substances and the like caused by basically selecting a fruit juice complete degreasing method to realize the uniformity of fruit juice appearance in order to solve the problems of fat floating and fruit juice lamination in the prior art, the invention aims at providing the preparation method of the grease-containing seabuckthorn turbid juice specific to the problems mentioned above, a part of fat in seabuckthorn is effectively retained by utilizing a partial degreasing and two-stage high-pressure homogeneous method, not only are the flavor substances and nutrient substances of the seabuckthorn turbid juice effectively retained, but also the problems of fat floating and lamination are effectively solved, so that the seabuckthorn turbid juice, which has high stability and a relatively long shelf life, is obtained, final products have a uniform emulsion state, various kinds of physiological active substances are maintained to the maximum extent, meanwhile, the manufacture cost is significantly reduced, and the seabuckthorn turbid juice can be widely applied to industrial production.

The invention discloses a coating composition. The composition comprises the following components, by weight, 21 parts of nanometer aluminum powder, 19 parts of calcined magnesia, 2 parts of bentonite, 8 parts of an aqueous epoxy resin emulsion, 12 parts of nanometer calcium oxide, 8 parts of nanometer titanium oxide, and the balance water. The composition which has a wide application has the advantages of anticorrosion and certain temperature resistance.

The invention discloses a preparation method of a coating composition. A coating consists of the following components in parts by weight: 21 parts of nano aluminum powder, 19 parts of calcined magnesia, 2 parts of bentonite, 8 parts of water borne epoxy resin emulsion, 12 parts of nano-calcium oxide, 8 parts of nano-titanium oxide and the balance of water. In the assistance of ultrasonic waves and microwave heating, the overall performance of the coating can be enhanced; and the prepared coating has wide application, is corrosion-resistant and erosion-resistant, and can be used at certain temperature.

The invention relates to the field of automobile parts, in particular to anti-oxidation and anti-fatigue CREE rare earth heat-resistant steel for a turbocharger shell and a preparation method of the anti-oxidation and anti-fatigue CREE rare earth heat-resistant steel. The alloy comprises the following components in percentage by weight: 0.1 to 0.5 percent of C, 1.0 to 3.0 percent of Si, 5.0 to 10.0 percent of Mn, 15.0 to 25.0 percent of Cr, 1.0 to 6.0 percent of Ni, 0.05 to 0.50 percent of V, 0.05 to 0.50 percent of Nb, 0.2 to 0.7 percent of N, 0.005 to 0.5 percent of RE and the balance of Fe. According to the anti-oxidation and anti-fatigue CREE rare earth heat-resistant steel for the automobile turbocharger shell, by controlling the C/N atom proportion, a film-shaped second phase is formed at the grain boundary, intragranular oxidation is inhibited, and the high-temperature oxidation resistance is improved; by means of the inhibition effect of rare earth elements on second phase growth, the high-temperature structure stability is improved, and thus the thermal fatigue resistance is improved. The intermediate frequency furnace high-nitrogen alloying, high-purity rare earth treatment and sand casting technologies are adopted, a turbocharger shell casting which is uniform in component, compact in structure and excellent in performance is obtained, and the technical problems of high-temperature oxidation, fatigue cracking and the like of a furnace turbocharger can be effectively solved.

The invention discloses an upper ultra-high-temperature ball valve. Graphite sealing is replaced by the unique valve seat and valve body sealing structure, the problem of high-temperature oxidation ofgraphite sealing is solved, and meanwhile, the problem about common springs in the ultra-high-temperature state is solved; a boss is designed ingeniously, a valve seat is fixed and pre-tightened, andthe specific pressure for sealing pre-tightening is reached; by the aid of a limiting cap designed ingeniously, the problems that a bonnet is lengthened at the high temperature and a ball is stuck due to expansion of a valve rod are solved; the problem of jamming of particles and powder is solved through purging in the closed and totally-open states of the valve; by the aid of the water cooling design of a jacket, the problem about the strength of the valve body when the temperature increases to 1,000 DEG C abnormally is solved, the safety guarantee is enhanced, and the problem of jamming dueto thermal expansion of the valve is solved.

The invention discloses a bag type edible oil filling machine. The bag type edible oil filling machine is characterized by comprising self-deformed soft bags used for containing edible oil and an oilfilling machine body used for receiving and fixing the soft bags, wherein the oil filling machine is mounted in kitchen or other fixtures; oil discharging mechanisms are arranged in the oil filling machine body; each oil discharging mechanism comprises an oil inlet connected with each soft bag, a valve body and an oil outlet extending out of the oil filling machine body. According to the bag typeedible oil filling machine, after the soft bags are connected with oil inlets in the oil filling machine body, flow valves are capable of quantitatively supplying edible oil; meanwhile, the oil in thesoft bags enters the oil discharging mechanisms according to the self weight; and the bag bodies can automatically generate deformation according to the remaining oil amount so as to prevent the airfrom entering the bag bodies and generating oxidation reaction.