7results about How to "High temperature stability" patented technology

The invention discloses a sandwich type aerosol product which comprises a heating body and an aerosol generating substrate, the heating body is formed by folding a body in the length direction of the heating body, the body is arranged in a plane shape, the heating body comprises a plurality of folding planes, a gap is formed between every two adjacent folding planes, and the aerosol generating substrate is folded and filled in part of or all the gaps. The body of the heating body in the sandwich type aerosol product is arranged in a plane shape, the temperature rising speed is high, the energy consumption is obviously reduced, and the high-temperature stability is high; a large heat exchange area is formed between the folded planes of the heating body and the folded aerosol generating substrate, the folded planes are opposite in pairs, heat radiation influences each other, and the overall temperature difference of the area nearby the heating body is reduced.

The utility model relates to the field of cutting tool bits, and discloses a high-temperature-resistant cutting tool bit which comprises an installation column, an installation module is fixedly arranged on one side of the installation column, a cutting module is arranged on the front end face of the installation module in a clamped mode, a fixing module is fixed to the front end face of the installation module through a bolt, and the installation module comprises a fixing column. A water storage box is arranged on one side of the interior of the fixing column, a conveying pipe is fixedly arranged on one side of the water storage box, the cutting module comprises a mounting block, a cutting knife is fixedly arranged on one side of the mounting block, clamping holes are formed in the upper portion and the lower portion of the front end face of the mounting block, and the fixing module comprises a connecting block. According to the utility model, after the cutting module and the mounting module are connected, the mounting module and the fixing module can be connected, the cutting module and the mounting module can be connected more firmly through the fixing module, and when the cutting module is damaged, a worker can replace the cutting module by disassembling a bolt and the fixing module.

This invention discloses a high-toughness asphalt mixture modified from waste plastics and rubber, and its application. It relates to the field of asphalt mixture preparation technology, comprising 80-150 parts of base asphalt, 2-8 parts of modified waste plastic particles, 4-12 parts of activated waste tire rubber powder, 100-150 parts of aggregate, and 30-40 parts of mineral filler. This invention adds silane-coupled waste plastic particles and microwave-activated waste tire rubber powder to the asphalt mixture, limiting the mass ratio of modified waste plastic particles to activated waste tire rubber powder to 1:(1.5~2). The aggregate and mineral filler fully fill the gaps, synergistically solving the defects of high low-temperature brittleness and insufficient high-temperature performance in asphalt. This results in a mixture with excellent high-temperature stability and low-temperature crack resistance, and significantly improved performance reproducibility.

This invention provides a sand casting coating for preventing nitrogen porosity in gray cast iron and its preparation method. The coating comprises a base material and additives. The additives include the following components by mass percentage: 15%–35% basalt fiber, 1%–10% zirconia microspheres, 40%–50% alumina powder, and 0.5%–1.5% rare earth element powder. The sand casting coating of this invention exhibits strong high-temperature stability, strength, toughness, and density. It can form a dense protective film on the surface of the sand mold, effectively preventing gas from penetrating into the molten iron.

The present application relates to the technical field of nuclear power, and especially relates to a seawater erosion resistant composite coating and a preparation method thereof. The composite coating comprises a high-entropy alloy layer and an epoxy resin layer coated on the high-entropy alloy layer. The preparation method comprises the following steps: step one, spraying a mixed powder coating on a substrate by using a low-pressure cold spraying method; step two, in-situ synthesizing a high-entropy alloy coating by remelting the mixed powder coating by induction; and step three, coating an epoxy resin layer on the high-entropy alloy layer. The coating formed by the present application has good sealing property and strong corrosion resistance, and is suitable for a seawater cooling system of a nuclear power plant.

The application discloses a preparation method of an apatite-type lanthanum silicate solid electrolyte, and comprises the following steps: step (1), mixing LaCrO3 powder and Ti3SiC2 powder to obtain mixed powder A; step (2), grinding the mixed powder A in anhydrous ethanol as a medium; step (3), drying the ground mixed powder A, and obtaining mixed powder B after the drying; step (4), secondly grinding the mixed powder B to obtain mixed powder C; and step (5), sintering the mixed powder C by using a discharge plasma technology, and obtaining the apatite-type lanthanum silicate bulk material after cooling to room temperature. Compared with a traditional preparation method, the method has the advantages of low sintering temperature, simple process, high efficiency, low cost, energy saving and environmental protection, and the prepared product is dense and has excellent mechanical properties.

The invention relates to measurement of intensity and spectral content of infrared light and visible light, in particular to a multiband absorber suitable for visible-near infrared bands and a photoelectric detector, and the absorber comprises a substrate layer, a transition metal nitride layer, a semiconductor layer and a distributed Bragg reflector which are stacked in sequence. According to the invention, visible-near infrared multiband efficient absorption can be realized, the efficiency of each absorption peak is high, and the broadband photoelectric detection requirement in the visible-near infrared band range can be covered; the transition metal nitride layer has high-temperature stability and long-term reliability, and the problem that traditional precious metal is prone to oxidation and failure in the visible-near infrared band can be solved; the target function can be achieved only through layered stacking of the substrate layer, the transition metal nitride layer, the semiconductor layer and the distributed Bragg reflector thin film, complex device design is not needed, complex nanometer processing technologies such as electron beam lithography are not needed, and the advantages of being simple in technology, low in cost and easy to prepare in a large area are achieved.