44results about How to "Resistant to mechanical shock" patented technology

The invention relates to low temperature curable bottom filling adhesive with heat transfer function, comprising component A and component B; the component A is made from 100 parts of epoxy resin, 10-35 parts of modified epoxy resin, 0.5-5 parts of epoxy modified silicone oil, 5-15 parts of active diluent, 250-600 parts of heat transfer filler, 0.5-2 parts of a dispersant, 0.5-2 parts of a defoaming agent, and 0.2-4 parts of a rheological agent; the component B is made from 100 parts of liquid epoxy curing agent, 8-20 parts of a toughening agent, 250-600 parts of heat transfer filler, 0.5-5 parts of epoxy modified silicone oil, 0.5-2 parts of an adhesion promoter, 0.5-2 parts of a dispersant, 1-4 parts of a rheological agent, and 0.5-2 parts of a defoaming agent. The defects of low heat transfer coefficient, low temperature storage, high temperature curing and the like in existing filling adhesive can be overcome, and a chip packaged and cured by 3D MCP has high adhesive strength, good resistance to mechanical impact and good radiating performance.

The invention discloses an anti-aging ceramic insulator and a preparation method thereof, and relates to the technical field of an insulator. The anti-aging ceramic insulator is prepared from the following raw materials in parts by weight: 20 to 32 parts of potassium feldspar, 15 to 24 parts of zeolite, 25 to 30 parts of mica, 8 to 16 parts of kaolin, 15 to 22 parts of epoxy resin, 10 to 18 partsof organic silicon, 10 to 20 parts of ceramic fiber, 6 to 10 parts of zirconium dioxide, 7 to 15 parts of calcium silicate, 4 to 10 parts of nanometer silicon dioxide, 4 to 10 parts of nanometer titanium dioxide, 3 to 8 parts of nanometer silicon nitride, 3 to 6 parts of silane coupling agents, 3 to 6 parts of antioxidants, 2 to 5 parts of anti-freezing agents and 3 to 6 parts of surface active agents. The anti-aging ceramic insulator has the advantages that the property is stable; the corrosion resistant performance and the anti-aging performance are good; the low temperature and high temperature resistant performance is good; strong mechanical stress is realized; the preparation method is simple and easy; the manufacturing cost is low; good market application prospects are realized.

The invention discloses a valve blade sealing structure and an air valve. The valve blade sealing structure comprises valve blades. The upper ends and the lower ends of the valve blades are provided with lap joint parts. The directions of the lap joint parts of every two adjacent valve blades are opposite. Each lap joint part is composed of a folding start face obliquely extending out and a folding stop face reversely folded back. A flexible sealing strip is arranged on one side of one end of the lap joint. A pressing strip is arranged at the upper end of the sealing strip. The pressing strip and the sealing strip are fixed to the valve blades through rivets in an inserting manner. The lower end of the sealing strip is squeezed by and attached to the folding stop faces of the two corresponding adjacent lap joint parts. The valve blade sealing structure is simple and convenient to install; and when the air valve is closed, the flexible sealing strip is deformed under the acting force of the lap joint parts of the valve blades so as to adaptively fill the connecting gaps between the lap joint parts of the valve blades, and therefore the leakage amount of air valves such as an air volume regulating valve, a fire valve, a smoke exhausting fire valve and a smoke exhausting valve is controlled to be reduced as much as possible.

The invention discloses a CPVC pipeline for fire protection engineering, belonging to the technical field of CPVC pipelines. The CPVC pipeline is prepared from the following raw materials in parts by weight: 80-90 parts of CPVC resin, 16-18 parts of ceramic fibers, 7-10 parts of glass fibers, 10-12 parts of magnesium oxide, 5-7 parts of calcium oxide, 8-10 parts of calcium carbonate, 2-4 parts of chlorinated paraffin, 2-4 parts of tributyl phosphate, 2-3 parts of an ACR machining modifier, 4-6 parts of a CPE impact modifier, 0.5-1 part of a pigment, 1-2 parts of an antioxidant, 4-5 parts of a heat stabilizer and 0.05-0.5 part of an ultraviolet light absorber. The invention further discloses a preparation method of the CPVC pipeline for fire protection engineering. The CPVC pipeline has relatively good mechanical property and strong fire resistance and high-temperature resistance.

The invention discloses a heat insulation-type cable, which comprises a cable core. An inner sheath and an outer sheath are extruded outside the cable core; the cable core is composed of a triangular support, three insulated wire cores mutually extruded inside the triangular support and ground wires located at three vertex angles of the triangular support; a ceramic fiber is arranged between the triangular support and the inner sheath; and an elastic buffer layer with a thickness of 2 to 5 mm, a metal armored layer with a thickness of 2 to 4 mm and a rock wool heat insulation layer with a thickness of 3 to 6 mm are sequentially arranged between the inner sheath and the outer sheath. Through arranging multiple heat insulation structures, the cable of the invention has the advantages of good heat insulation performance, high temperature resistance, good heat stability, low heat conductivity and the like.

The invention discloses an architectural insulated board and belongs to the technical field of building materials. The architectural insulated board comprises the following raw materials in parts by weight: 6-8 parts of polyvinyl acetate emulsion, 1-2 parts of butyl rubber, 5-10 parts of ceramic fibers, 4-8 parts of steel fibers, 15-20 parts of glass wool, 5-7 parts of expanded vermiculite, 5-7 parts of sepiolite powder, 12-15 parts of diatomite, 7-9 parts of talcum powder, 2-4 parts of asphalt, 1-3 parts of sodium silicate, 0.1-0.2 part of a light stabilizer, 0.1-1 part of a water reducing agent and 1-2 parts of a curing agent. The invention further discloses a preparation method of the architectural insulated board. The architectural insulated board disclosed by the invention is simple in preparation and high in strength and has excellent thermal insulation capacity.

The present invention discloses an electric arc furnace lid, which comprises, by weight, 5-10 parts of metallic aluminum powder, 10-14 parts of stainless steel fiber, 7-10 parts of chromium oxide green, 0.5-1.0 part of sodium tripolyphosphate, 0.1-0.3 part of sodium hexametaphosphate, 65-75 parts of 8-15 mm 85 bauxite, 70-75 parts of 1-3 mm 85 bauxite, 57-65 parts of 3-8 mm 70 sintered mullite, 75-85 parts of white fused alumina with a particle size of less than 1 mm, and the like. The preparation method comprises: mixing various components of the formula, uniformly stirring, adding water, uniformly stirring, carrying out vibration molding, and finally drying to prepare the electric arc furnace lid. According to the present invention, the prepared electric arc furnace lid has advantages of high bulk density, good compressive strength, good flexural strength and good erosion resistance, can provide advantages of good corrosion resistance and cracking resistance during the use, and further has advantages of significantly improved service lifer and effectively reduced raw material consumption.

The invention discloses a tough and flexible PVC composite floor with a UV protective layer structure. The tough and flexible PVC composite floor comprises a PVC layer and a base gel layer coated on the lower surface of the PVC layer. The upper surface of the PVC layer is provided with an elastic layer. A printing layer is laid on the elastic layer. The upper surface of the printing layer is sequentially provided with a reinforcing layer and a UV protective layer from bottom to top. The upper surface of the PVC layer is provided with concave-convex grooves. The lower surface of the elastic layer is provided with concave-convex grooves corresponding to the upper surface of the PVC layer. The attaching faces of the PVC layer and the elastic layer are meshed with each other through the concave-convex grooves. The tough and flexible PVC composite floor with the UV protective layer structure is good in anti-skid property, high in surface stain resistance, resistant to corrosion, resistant to static electricity, free of burning, resistant to abrasion, resistant to aging, soft in texture and convenient to lay and mount.

The invention discloses a ceramic fiber strengthened polyurethane foam plastic and a preparation method thereof, and belongs to the technical field of materials. The foam plastic is composed of the following raw materials in parts by weight: 65 to 80 parts of polyurethane emulsion, 10 to 20 parts of ceramic fiber, 2 to 5 parts of tert-butyl peroxypivalate, 3 to 8 parts of tritolyl phosphate, 3 to 8 parts of polyamide, 3 to 7 parts of sodium borate, and 8 to 18 parts of sodium silicate. The preparation method comprises the following steps: (1) weighing; (2) putting the raw materials into an injection moulding machine; (3) cooling and moulding. The heat conductivity of the provided ceramic fiber strengthened polyurethane foam plastic is further reduced; the provided foam plastic has a good temperature-resistant and fireproof performance, at the same time the mechanical properties, corrosion resistant property and weatherability of the foam plastic are excellent, and thus the foam plastic is an ideal material.

The invention discloses a thermal insulation building material and preparation method thereof, and relates to the technical field of building materials. The building material is prepared from, by weight, 15-20 parts of epoxy resin, 14-18 parts of phenolic resin, 16-21 parts of polyurethane, 6-12 parts of vermiculite, 8-15 parts of perlite, 7-15 parts of volcanic ash, 9-14 parts of asbestos, 15-18parts of calcium silicate, 3-7 parts of calcium fluosilicate, 4-8 parts of nanometer aluminium oxide, 5-9 parts of nanosilicon dioxide, 4-8 parts of liquid water glass, 4-7 parts of ceramic fiber, 3-6parts of zinc oxide, 2-4 parts of carbon black, 3-5 parts of fire retardant, 2.5-4.5 parts of antioxygen, 1.2-2.1 parts of defoaming agent, 3-5 parts of photo-thermal stabilizer and 2-4 parts of curing agent; the thermal insulation building material is small in heat conductivity coefficient, large in heat storage coefficient, better in the thermal insulation performance, large in antiflaming coefficient, high in safety performance, good in cracking resistance, shock resistance and ageing resistance, long in service life, simple in the preparation method, low in raw material price, and betterin market application prospects.

The invention relates to a preparation method of a high-toughness cyanate impeller cover plate. The preparation method comprises the following steps: firstly, preparing a casting mixture raw materialsaccording to mass percent; secondly, cleaning a die and smearing a releasing agent; thirdly, preparing a prepolymer; fourthly, preparing a cyanate prepolymer; fifthly, heating the die treated in thesecond step, enabling the temperature of the die to be kept at 60 to 70 DEG C, and keeping sprues at two ends of the die in a horizontal direction; sixthly, obtaining a casting mixture; seventhly, moulding by casting; eighthly, carrying out sulfidizing treatment; ninthly, taking a tube sulfidized in the eighth step and cleaning the inner and outer surfaces of the tube to obtain the high-toughnesscyanate impeller cover plate. According to the preparation method disclosed by the invention, wear resistance of the impeller cover plate is improved, the toughness of the impeller cover plate is enhanced, and the conditions that fracturing, breaking and the like easily occur when mechanical properties are reduced due to long-time use and materials are screened and classified are effectively prevented.

The invention discloses a high-temperature insulation sealing strip. The high-temperature insulation sealing strip comprises a plurality of insulation chains with clamping openings, and a plurality of ceramic fiber blocks. The insulation chains are connected in an end-to-end hinged mode, and one ceramic fiber block is connected inside the clamping opening of each insulation chain in a clamping mode. The ceramic fiber blocks are connected to the insulation chains in a clamping mode, and the insulation chains are connected in the end-to-end hinged mode for forming the high-temperature insulation sealing strip. The high-temperature insulation sealing strip is simple in structure, convenient to manufacture and maintain, capable of meeting the requirement for high-temperature insulating and sealing, wide in use range and low in cost.

The invention discloses a building adhesive for a steel structure and belongs to the technical field of adhesives. The building adhesive comprises the following raw materials in parts by weight: 15-18 parts of silicate, 4-6 parts of starch, 15-17 parts of fluorinated silicone rubber, 70-80 parts of vinyl acetate resin, 7-9 parts of ceramic fiber, 12-16 parts of aluminum powder, 4-6 parts of titanium dioxide, 3-5 parts of molybdenum disulfide, 1-2 parts of a curing agent, 2-3 parts of an accelerant, 3-4 parts of an anti-rusting agent, 0.5-1 part of an anti-mold agent and 0.5-0.8 part of an anti-aging agent. The invention further discloses a preparation method of power equipment protection paint. The building adhesive is good in adhesion property, high in strength, good in rusting resistance, high temperature resistance and corrosion resistance and long in service life.

The invention relates to a sheet-type temperature sensor. The sheet-type temperature sensor includes a base film, a thermistor chip, a positive circuit layer, a negative circuit layer, and a capping film. The base film is provided with a chip groove, and the thermistor The chip is arranged in the chip groove, the positive electrode circuit layer and the negative electrode circuit layer are arranged on the base film without contacting each other, and are respectively connected to the positive and negative electrodes of the thermistor chip, and the capping film and The base films are attached to each other to package the thermistor chip, the positive circuit layer and the negative circuit layer. The present invention also relates to a preparation method of the above-mentioned thermistor with a base. The sheet-type temperature sensor of the present invention has the advantages of good sealing, reliable performance, high protection strength, resistance to mechanical impact, resistance to bending, not easily damaged, long service life and simple preparation.

The invention belongs to the technical field of high-temperature-resistant filter materials, in particular to a method for preparing a composite high-temperature-resistant filter material of PTFE and PPS, step 1, raw material preparation. The preparation method of the PTFE and PPS composite high-temperature-resistant filter material, by setting PTFE fibers, ceramic fibers, PPS fibers and graphene fibers, the PTFE fibers have large discrete fineness, good acid and alkali resistance, and the addition of graphene fibers makes the filter The material has the characteristics of high electron mobility, high thermal conductivity, good elasticity and stiffness. The ceramic fiber has the characteristics of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small specific heat and mechanical vibration resistance. , has the characteristics of opening the surface PTFE fiber, entanglement effect of PTFE fiber and PPS fiber is good, the thickness of the filter material is small, and the tensile breaking strength of the filter material is high, thus solving the problem of the existing film-coated filter material The bonding process itself and the dragging during transportation make the PTFE membrane easy to peel off and break.

The invention relates to a method for preparing a high-toughness cyanate ester seamless tube. The method comprises the following steps: 1) casting mixture raw materials according to mass percentages;2) preparing a steel tube; 3) preparing a prepolymer; 4) preparing a cyanate ester prepolymer; 5) mounting the steel tube obtained in the step 2) on a centrifuge with a mold, maintaining casting holesin two ends in a horizontal direction, heating the steel tube, and keeping the temperature at 60-70 DEG C; 6) preparing a cast mixture; 7) carrying out casting molding; 8) vulcanizing the steel tube;9) carrying out inner / outer surface cleaning treatment on the vulcanized steel tube, so as to obtain the cyanate ester seamless tube, wherein the cyanate ester seamless tube is stored in warehouses after inspection qualification. By adopting the production process provided by the invention, the wearing resistance of the tube is improved, the toughness of the tube is improved, and tube layering can be effectively prevented.