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43 results about "Semiconduction" patented technology

Of, relating to, or having the characteristics of a semiconductor; semiconductors are any of a class of solids, such as germanium or silicon, whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly absent at low temperatures.

Middle and high pressure oil-resisting rubber semiconduction shielded cable material and preparation

The improved oil resistant semi-conductive cable shielding material consists of butadiene-acrylonitrile rubber or hydrogenated butadiene-acrylonitrile rubber 100 weight portions, conducting carbon black 50-80 weight portions, graphite powder 15-30 weight portions, plasticizer 15-20 weight portions, dithio tetramethyl thiram and alphatic polysulfide 1.0-3.0 weight portions, dibenzothiazole disulfide and zinc diethyl dithio amino formate 1.0-2.0 weight portions, zinc oxide and stearic acid 8.0-10.0 weight portions. Compared with available technology, the present invention has the advantages of excellent conductivity, volume resistivity not greater than 50 ohm.cm, high tensile strength up to 18 MPa, high oil resistance and other advantages.
Owner:WUXI HUANCABLE

Process for producing multilayer chip zinc oxide varistor containing pure silver internal electrodes and firing at ultralow temperature

A low-temperature firing process is available for cost saving to produce a multilayer chip ZnO varistor containing pure silver (Ag) formed as internal electrodes and calcined at ultralow firing temperature of 850-900° C., which process comprises:a) individually preparing ZnO grains in advance doped with doping ions for promotion of semi-conductivity of ZnO grains if calcined;b) individually preparing a desired high-impedance sintering material to be fired as grain boundaries to encapsulate ZnO grains;c) mixing the doped ZnO grains of Step a) with the high-impedance sintering material of Step b) in a predetermined ratio to form a mixture and proceeding with an initial sintering to have the mixture sintered and ground as composite ZnO ceramic powders, andd) processing the sintered mixture of Step c) to make multilayer chip ZnO varistors containing pure silver (Ag) internal electrodes but sintered at ultralow firing temperature of 850-900° C.
Owner:SFI ELECTRONICS TECH

A high-voltage, ultra-high-voltage XLPE insulated single-core submarine power cable

The invention discloses a high voltage and supervoltage cross-linked polyethylene insulating submarine power cable with a single core. A metal shielding layer (8) of the cable is a lead sleeve shielding layer; and a copper wire sparse winding shielding (6), which is formed by copper wire leads, is arranged between a first semiconduction water blocking buffer layer (5) and the metal shielding layer (8). And a metal armor layer is composed of nonmagnetic non-ferrous metals. According to the invention, the cable has a good mechanical property and a good corrosion resistant performance; electromagnetic losses are small; and there is enough transient and short-circuit current capacity. Therefore, the cable provided in the invention is suitable for replacing a high voltage and supervoltage AC transmission oil impregnated paper insulating submarine power cable with a single core as well as can be laid in an adverse marine usage environment; moreover, the cable has good mechanical and applicable performances.
Owner:HENGTONG SUBMARINE POWER CABLE CO LTD +1

Semiconductor device, manufacturing method of the same, or display device including the same

To provide a novel semiconductor device including an oxide semiconductor film. The semiconductor device includes a first transistor and a second transistor. The first transistor includes a first gate electrode, a first insulating film over the first gate electrode, a first oxide semiconductor film over the first insulating film, a source electrode electrically connected to the first oxide semiconductor film, a drain electrode electrically connected to the first oxide semiconductor film, a second insulating film over the first oxide semiconductor film, a second oxide semiconductor film functioning as a second gate electrode, over the second insulating film, and a third insulating film over the second oxide semiconductor film. The second transistor includes a third oxide semiconductor film including a channel region, a source region, and a drain region over the second insulating film, a fourth insulating film over the channel region, a third gate electrode over the fourth insulating film, and the third insulating film over the source region and the drain region.
Owner:SEMICON ENERGY LAB CO LTD

Anisotropically conductive sheet, production process thereof and connector

Disclosed herein is an anisotropically conductive sheet that exhibits conductivity in its thickness-wise direction, and is suitably used as a connector.The anisotropically conductive sheet of the first feature may comprise a plurality of columner conductive parts extending in the thickness-wise direction and a semiconductive part that exhibits semiconductivity in its plane direction. In the sheet, respective conductive parts may be surrounded by the semiconductive part with an insulating part therebetween. The sheet may comprise conductive particles contained in a sheet member exhibiting semiconductivity in a state oriented so as to be arranged in the thickness-wise direction thereof.The sheet of the second feature has a static charge-eliminating layer integrally provided on the surface of a sheet member.The sheet of the third feature has a conductive part for static-charge elimination to be connected to a ground.The sheet can inhibit static electricity from being accumulated on the surface thereof.
Owner:ISC CO LTD

Semi-conductive mixture

The invention relates to a kind of semiconduction mixture. Generate basic polymer by low-density polythene with 20-70 part by weight and other polyolefin polymer with 80-30 part by weight, and then cooperate semiconduction carbon black with 30-80 part by weight in this basic polymer with 100 part by weight.
Owner:THE FUJIKURA CABLE WORKS LTD

Preparation method of ceramic grain boundary layer condensor

The method selects hexagonal silicon carbide or relaxation iron electric material in semiconduction as ceramic basic material, selects low eutectic mixture consisting of copper oxide, aluminium oxide, magnesium oxide and silicon oxide as high insulation boundary phase to prepare boundary ceramic capacitor by one-time buring through utilizing article wrapping up technique to realize distributive homogenization for structure and phase.
Owner:ZHENGZHOU UNIV

A-site high-entropy perovskite oxide MeTiO3 thermoelectric ceramic and preparation method thereof

ActiveCN112960978AEvenly distributedHas thermoelectric propertiesPorosityOxygen vacancy
The invention discloses A-site high-entropy perovskite oxide MeTiO3 thermoelectric ceramic and a preparation method thereof. The A-site high-entropy perovskite oxide MeTiO3 has a single-phase perovskite structure, the elements in the A-site high-entropy perovskite oxide MeTiO3 are uniformly distributed without agglomeration, and the A-site high-entropy perovskite oxide MeTiO3 has thermoelectric performance and can be used in the field of thermoelectric materials. The chemical composition of the A-bit high-entropy perovskite oxide MeTiO3 is (Ca < 0.2 > Sr < 0.2 > Ba < 0.2 > La < 0.2 > Pb < 0.2 >) TiO3, (Ca < 0.25 > Sr < 0.25 > Ba < 0.25 > La < 0.25 >) TiO3, (Ca < 0.25 > Sr < 0.25 > Ba < 0.25 > Pb < 0.25 >) TiO3, (Ca < 0.25 > Sr < 0.25 > Ba < 0.25 > Nd < 0.25 >) TiO3, (Ca < 0.25 > Sr < 0.25 > Ba < 0.25 > Sm < 0.25 >) TiO3, and (Ca < 0.25 > Sr < 0.25 > Ba < 0.25 > Eu < 0.25 >) TiO3. According to the invention, the high entropy of the perovskite structure is realized, the disorder degree of atom arrangement in the material composition is improved, the phonon scattering is increased, and the thermal conductivity is reduced, so that the thermoelectric performance is improved. In the sintering process, oxygen atoms are migrated and discharged through oxygen vacancies in material crystal lattices, the porosity is reduced, the ceramic density is improved, meanwhile, the oxygen vacancy concentration is improved, and the carrier concentration of the material is improved. By adopting a reduction annealing process of argon and carbon powder, the semiconduction of perovskite oxide is realized, the carrier concentration of the ceramic is improved, the conductivity is improved, and the thermoelectric performance is further improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Automobile engine strong-force high-tension ignition wire

The invention relates to an automobile engine strong-force high-tension ignition wire. Because the existing automobile engine high-tension ignition wire is continuously used until now for long term, the product structure, the applied materials and the technical parameters of the automobile engine high-tension ignition wire are very inapplicable to the rapid development of the current automobile industry. In the invention, the structure, the technical parameters and the like of the product are improved dramatically, so that energy saving and emission reduction can be obtained, the engine driving force is increased, and the interference of high-frequency electromagnet waves generated by sparks is prevented. The invention has the main technical measures that (1) one sealed copper (aluminum) foil shielding layer is arranged in the wire structure, the high-frequency electromagnet waves are utilized to produce the skin effect, so that the high-frequency electromagnet waves can not penetrate through the shielding layer, and strong shielding effect can be obtained; the DC resistance of a reactance damping type conducting wire core is reduced to 500-1000 ohm / m under the condition of (1), so that the ignition current can be increased by multiple times, i.e. the ignition energy is increased by multiple times; and (3) the weaving of semiconducting carbon fiber substitutes for the waving of usual glass fiber, the mechanical strength is increased, and meanwhile, the damage of the outer surface of a high-tension insulating layer by corona can be eliminated due to semiconduction and grounding.
Owner:戴永国

Water-repellent semiconducting metal-shielded flame-retardant braided strap and processing technology thereof

The invention discloses a water-repellent semiconducting metal-shielded flame-retardant braided strap. The water-repellent semiconducting metal-shielded flame-retardant braided strap comprises a base fabric, and conductive liquid, flame-retardant liquid and a water-repellent adhesive attached to the base fabric; and the base fabric is formed by braiding wraps and wefts. The processing technology comprises the following technological steps of: 1) sorting: sorting the wraps and the wefts; 2) braiding: braiding the wraps and wefts by using a high-speed braiding machine; 3) coating the conductive liquid: coating the conductive liquid on the base fabric in a liquid-immersing groove; 4) drying: drying the base fabric, rolling and leveling; 5) coating the flame-retardant liquid: coating the flame-retardant liquid on the treated base fabric in the liquid-immersing groove; 6) drying: drying the base fabric, rolling and leveling; and 7) packaging: performing vacuum packaging on the braided strap to form a finished product. The water-repellent semiconducting metal-shielded flame-retardant braided strap has the advantages of semiconduction, water-repellent and flame-retardant property, high heat resistance grade, high tensile strength, and energy conservation, consumption reduction and environmental protection in the production process.
Owner:YANG ZHOU TENGFEI ELECTRIC CABLE & APPLIANCE MATERIALS CO LTD

Flexible semiconductive shielding material and preparation method thereof

The invention provides a flexible semiconductive shielding material and a preparation method of the flexible semiconductive shielding material. The flexible semiconductive shielding material comprises the following ingredients in parts by weight: 70-90 parts of EVA (ethylene vinyl acetute), 10-30 parts of SEBS (styrene ethylene-butylene styrene), 30-40 parts of high-conductivity carbon black, 0.5-1.5 parts of an antioxidant, 1.0-2.0 parts of a cross-linking agent DCP (dicumyl peroxide), 1.5-3.0 parts of a cross-linking assistant TAIC (triallylisocyanurate), and 1.0-2.5 parts of solid paraffin. The preparation method of the material comprises the following steps: (1) fusing and uniformly mixing EVA, the high-conductivity carbon black and the antioxidant in a high-temperature mixer, (2) adding an SEBS thermoplastic elastomer for fusing and uniform mixing, and (3) finally, adding the solid paraffin, the cross-linking agent DCP and the cross linkage assistant TAIC for fusing and uniform mixing, taking the material out of the mixer rapidly and cooling the room temperature. The semiconductive shielding material has flexibility and semiconduction functions.
Owner:QINGDAO UNIV OF SCI & TECH

Ultrahigh-voltage power cable with smooth aluminum sheath

The invention discloses an ultrahigh-voltage power cable with a smooth aluminum sheath. The ultrahigh-voltage power cable comprises a conductor, wherein an internal shielding layer, an insulation layer and an insulation shielding layer are arranged outside the conductor in an extruded way, a semiconduction buffer water blocking tape is arranged outside the insulation shielding layer, a smooth aluminum metal sleeve is arranged outside the semiconduction buffer water blocking tape, a corrosion-resistant asphalt layer is coated outside the smooth aluminum metal sleeve, a non-metal protection layer is arranged outside the corrosion-resistant asphalt layer, and a graphite coating layer is arranged outside the non-metal layer. From angles of cable bearing capability, material saving and cable running safety guarantee, the external diameter of the cable can be effectively reduced, the material consumption is reduced, the cable is compact in structure, the light design of the high-voltage cable is achieved, and meanwhile, the cable transmission quantity is also improved.
Owner:WUXI SHUGUANG CABLE

Method for reducing self-discharge rate of high-nickel ternary lithium battery

The invention discloses a method for reducing self-discharge rate of a high-nickel ternary lithium battery. The method comprises the steps of (a) adding barium hydroxide and sodium hydroxide into deionized water to prepare a mixed solution; (b) dropping titanium titanium tetrachloride into the mixed solution, transferring the mixture solution to a polytetrafluoroethylene lining, and performing hydrothermal reaction; (c) performing thermal processing after hydrothermal reaction is ended to prepare barium titanate; and (d) mixing the barium titanate, metal lithium, lanthanum oxide, yttrium oxide, bismuth oxide, antimony oxide, tantalum oxide and niobium oxide, and coating the mixture onto a negative current collector by flame, thereby reducing the self-discharge rate of the high-nickel ternary lithium battery. The method has the following beneficial effects that the barium titanate is flame-coated onto a surface of the current collector to form semiconduction ceramic, metal ions can be absorbed, the loss of electrode metal is prevented to a certain extent, and the self-discharge effect is further reduced.
Owner:CHENDU NEW KELI CHEM SCI CO LTD

Semiconduction shielding material with weakened positive temperature coefficient effect and preparation method thereof

InactiveCN105985571AWeak positive temperature coefficient effectWeaken the positive temperature coefficient effectSemiconductionElastomer
The invention provides a semiconduction shielding material with a weakened positive temperature coefficient effect and a preparation method thereof. The semiconduction shielding material is prepared from, by weight, 50-60 parts of LDPE, 5-20 parts of elastomer, 25-35 parts of high-conductive black, 0.5-1.5 parts of antioxidant, 1.0-2.5 parts of a cross-linking agent DCP, 1.5-3.5 parts of a cross-linking aid TAIC and 0.5-1.5 parts of solid paraffin. The preparation method comprises the following steps that firstly, in a high-temperature mixer, LDPE, high-conductive black and the antioxidant are melt and mixed evenly; secondly, then nonpolar rubber or nonpolar thermoplastic elastomer is added, melted and mixed evenly; thirdly, solid paraffin, the cross-linking agent DCP and the cross-linking aid TAIC are added, melted and mixed evenly, and the material is quickly taken out of the mixer and cooled to the room temperature. The semiconduction shielding material has the remarkably-weakened positive temperature coefficient effect at the working temperature.
Owner:QINGDAO UNIV OF SCI & TECH

Core wire structure for medium-voltage power cable

The invention discloses a core wire structure for a medium-voltage power cable, which sequentially comprises (from inside to outside) a compressed conductor, a conductor semiconduction shielding layer, an insulating layer, an insulation semiconduction shielding layer, a metallic shielding layer, a belting layer and an outer sheath, wherein, the insulating layer is made from a water-resistant insulating material. The core wire structure solves the problem that the original cable insulation water-resistance of the medium-voltage XLPE insulated cable with water resistance must adopt a water-resistant filler layer and a fastening anticorrosive metal sleeve in a cable direction, thus greatly simplifying the structure of the medium-voltage XLPE insulated cable with water resistance, enhancing the production efficiency and greatly saving resources. The structure has the advantages of simple structure, less resource consumption, simplified manufacturing technique, improved service life, convenient laying and connection, lower total life cycle cost of the cable.
Owner:SHANGHAI JIULONG ELECTRIC POWER GROUP +2

Method for preparing male condom having a self-standing skirt-shaped structure and products thereof

The invention discloses a manufacture method of a men-used condom with the self-erection skirt-shaped structure. The invention includes a cirque (2) and a conical structure (3) made by the metal conductive material or semiconduction material which is increased at the root of a hollow condom die (1) made of insulated material; the middle part of a condom die (1) is embedded with an electrically conductive ring-shaped coil (4); the cirque (2), the conical structure (3) and the ring-shaped coil (4) are connected with a lead (5) as the anode; furthermore, the deploying and retracting metal rod is taken as the cathode; the electricity is got through dipping into a rubber latex solution; after the colloidal particle is settled on the cirque (2), the conical structure (3) and the ring-shaped coil (4), the die is dipped into normal rubber latex solution or polyurethane solution; after drying and demoulding, a men-used condom (10) with a self-erection skirt-shaped structure (7) is obtained. The condom can more thoroughly isolate the flyblowing of the body fluid, thus preventing the sexual transmitted disease such as the AIDS, etc.
Owner:冷博

Method for regulating and controlling insulating framework of high-dielectric and high-voltage-resistant SrTiO3 dielectric ceramic

The invention discloses a method for regulating and controlling an insulating framework of high-dielectric and high-voltage-resistant SrTiO3 dielectric ceramic, the insulating framework is Sr3Ti2O7, Sr3Ti2O7-coated SrTiO3 composite powder is prepared by regulating the molar ratio of SrTiO3 to Sr (NO3) 2 and adopting a liquid-phase coating method, and then the composite powder is subjected to ceramic semiconduction to obtain dielectric ceramic materials with different dielectric constants and resistance values. According to the regulation and control method for the insulating framework of the high-dielectric and high-voltage-resistant SrTiO3 dielectric ceramic, the dielectric constant and the insulation resistivity of SrTiO3 can be regulated by coating and regulating the thickness of the insulating framework.
Owner:HEFEI UNIV OF TECH

Semiconduction medium and low voltage halogen-free flame retardant single-wall heat-shrinkable tube and preparation method thereof

The invention relates to a heat-shrinkable tube, in particular to a semiconduction medium and low voltage halogen-free flame retardant single-wall heat-shrinkable tube and a preparation method thereof. The heat-shrinkable tube consists of a wall, and materials of the wall comprise the following raw materials in parts by weight: 70 parts of polyolefin mixed resin, 10 parts of conductive carbon black, 10 parts of auxiliary agent, 20 parts of flame retardant and 10 parts of auxiliary flame retardant. The preparation method comprises the following steps of: preparing an inner wall material of the single-wall heat-shrinkable tube; extruding; irradiating; expanding; and molding. Compared with the traditional shrinkable tubes, the single-wall heat-shrinkable tube has the technical characteristics that the halogen-free flame retardant is adopted in the raw materials, and the product has good flame retardant effect, high temperature resistance, no pollution during combustion and reduced cost, is suitable for working under a high-voltage condition of 10kV, has obvious economic benefits and environmental protection benefits and is suitable for large-scale popularization and application.
Owner:JIANGSU DASHENG HEAT SHRINKABLE MATERIALS

Semiconduction material for high-strength high-hardness saddle-shaped filling strip and preparation method thereof

InactiveCN105348576AExtended service lifeImprove Section AppearanceRubber insulatorsParaffin waxStearic acid
The invention discloses a semiconduction material for a high-strength high-hardness saddle-shaped filling strip and a preparation method thereof. The semiconduction material is prepared from natural rubber, high styrene, an accelerator M, an accelerator DM, an accelerator TMTD, sulphur, zinc oxide, stearic acid, paraffin wax, an anti-aging agent 4010NA, conductive carbon black, graphite powder and engine oil. According to the semiconduction material for the special saddle-shaped rubber jacketed flexible cable filling strip, the high-strength high-hardness filling strip made of the material can support a main cable core and an auxiliary cable core and does not deform when the cable cores are subjected to an extrusion force in the cabling and outer sheath procedures. In addition, through the ultra-high strength, a certain tensile action can be achieved, the destructive action on the cable cores in the cable stretching process is reduced, and the service life of a cable is prolonged. Accordingly, through usage of the filler strip material, not only can the section appearance of the cable be improved, but also filling is more compact and the impact and extrusion resisting performances of the cable are enhanced.
Owner:SHANGHAI LANHAO ELECTRIC

Bus terminal accessory of ethylene-propylene insulation copper pipe

The invention relates to a bus terminal accessory of an ethylene-propylene insulation copper pipe, and belongs to the technical field of power equipment. The accessory comprises a hollow insulation pipe and semiconduction stress cones, wherein the semiconduction stress cones are arranged at one end of the insulation pipe and are in hollow truncated cone shapes, one end with a large radius of each semiconduction stress cone faces the insulation pipe, the semiconduction stress cones are wrapped by the insulation pipe, and a plurality of umbrella skirts are arranged on an outer surface of the insulation pipe. In the bus terminal accessory of the ethylene-propylene insulation copper pipe, provided by the invention, a liquid silicone rubber material is adopted, the accessory is formed by die pressing high-temperature curing, the semiconduction stress cones are overlapped with the insulation pipe to achieve an effect of uniform insulation shielding, and the radial field intensity and longitudinal field intensity of an insulation shielding opening can be perfectly uniform; the insulation layer is provided with umbrella skirts, the insulation problem of a voltage of a semiconduction outer side can be ensured very well by the insulation layer, and meanwhile, the voltage problem of the whole bus terminal is ensured; and the umbrella skirts are used for extending the creepage distance of a high potential and a low potential very well, and the subsequent process of a bus due to the creepage distance problem is saved.
Owner:JIANGSU HUAQIANG ELECTRIC EQUIP

Control cable for nuclear power station

InactiveCN106298004AGood cushioning and anti-vibration effectStrong shielding and anti-interference abilityInsulated cablesInsulated conductorsSemiconductionInsulation layer
The invention discloses a control cable for a nuclear power station. The control cable comprises a round reinforcement insulation tube, wherein a Y-shaped insulation partition plate is arranged in the reinforcement insulation tube, eight insulation partition plates are uniformly arranged on an outer wall of the insulation reinforcement tube in a radial way, three main wire cores are arranged between the Y-shaped insulation partition plate and an inner wall of the insulation reinforcement tube, and each main wire core comprises a main conductor and a trifluoropropyl silicone rubber insulation layer and a semiconduction shielding layer which sequentially wrap the main conductor. In the control cable, the Y-shaped insulation partition plate is arranged in the reinforcement insulation tube, the eight insulation partition plates are uniformly arranged on the outer wall of the insulation reinforcement tube in a radial way, the control cable has the advantages of simple structure, good insulation effect, good extrusion-resistant and tensile effect, low cost, high shielding anti-jamming ability, high weather resistance and multi-layer insulation and shielding, and is convenient to use and stable and reliable to work, a semiconduction expansion buffer layer is high in buffer shock-resistant effect.
Owner:ANHUI HUININGELECTRIC INSTR & APPLIANCE GRP

Shielding, monitoring and wrapping reinforced low smoke halogen free rubber jacketed flexible cable of coal mining machine

The invention relates to a shielding, monitoring and wrapping reinforced low smoke halogen free rubber jacketed flexible cable of a coal mining machine. The shielding, monitoring and wrapping reinforced low smoke halogen free rubber jacketed flexible cable comprises main wire cores and monitoring wire cores and is characterized in that each main wire core comprises a power wire core conductor, wherein a first insulation layer is arranged outside the power wire core conductor in an extruded manner, a first halogen free semiconduction shielding layer is arranged outside the first insulation layer in an extruded manner, each monitoring wire core comprises a control wire core conductor, a second insulation layer is arranged outside the control wire core conductor in an extruded manner, a second halogen free semiconduction shielding layer wraps the second insulation layer, a monitoring wire core conductor is woven outside the second halogen semiconduction shielding layer, halogen free EVA sheath material is arranged outside the main wire cores and the monitoring wire cores and extrudes an inner sheath, an aramid fiber weaving reinforcement layer is woven outside the inner sheath, and alow smoke halogen free EVA sheath material is arranged outside the aramid fiber weaving reinforcement layer and extrudes an outer sheath. By the shielding, shielding, monitoring and wrapping reinforced low smoke halogen free rubber jacketed flexible, the requirements of low smoke, halogen freeness, low toxicity and flame retardance of the cable are met, the tensile performance of the cable is improved, and the service lifetime of the cable is prolonged.
Owner:JIANGSU ZHONGMEI CABLE

Semiconduction double-wall heat-shrinkable tube and preparation method thereof

The invention relates to a heat-shrinkable tube, in particular to a semiconduction double-wall heat-shrinkable tube and a preparation method thereof. The semiconduction double-wall heat-shrinkable tube consists of an outer wall material and an inner wall material, wherein the outer wall material comprises the following components in parts by weight: 70 parts of first polyolefin mixed resin, 20 parts of first auxiliary agent and 10 parts of conductive carbon black; and the inner wall material comprises the following components in parts by weight: 70 parts of second polyolefin mixed resin, 30 parts of second auxiliary agent and 10 parts of conductive carbon black. The preparation method comprises the following steps of: preparing the inner and outer wall material of the double-wall heat-shrinkable tube; extruding; irradiating; expanding; and molding. Compared with the traditional heat-shrinkable tubes, the double-wall heat-shrinkable tube has the technical characteristics that the inner wall material can be water proof and air-tight; the outer wall material maintains good properties of electrical properties, chemical properties, and the like of ordinary heat-shrinkable tubes, not only has all use properties of the ordinary heat-shrinkable tubes, but also has the properties of waterproofing, air-tightness, damp proofing, anticorrosion, and the like, completely meets the requirement on environmental protection of the ROHS (Restriction of the use of certain Hazardous Substances) instruction of EU (European Union) countries, and the like and has the advantages of low-temperature shrinking, stable expansion from three to four times, low longitudinal shrinkage rate, and the like.
Owner:JIANGSU DASHENG HEAT SHRINKABLE MATERIALS

Water-repellent semiconducting metal-shielded flame-retardant braided strap

The invention discloses a water-repellent semiconducting metal-shielded flame-retardant braided strap. The water-repellent semiconducting metal-shielded flame-retardant braided strap comprises a base fabric, and conductive liquid, flame-retardant liquid and a water-repellent adhesive attached to the base fabric; and the base fabric is formed by braiding wraps and wefts. The processing technology comprises the following technological steps of: 1) sorting: sorting the wraps and the wefts; 2) braiding: braiding the wraps and wefts by using a high-speed braiding machine; 3) coating the conductive liquid: coating the conductive liquid on the base fabric in a liquid-immersing groove; 4) drying: drying the base fabric, rolling and leveling; 5) coating the flame-retardant liquid: coating the flame-retardant liquid on the treated base fabric in the liquid-immersing groove; 6) drying: drying the base fabric, rolling and leveling; and 7) packaging: performing vacuum packaging on the braided strap to form a finished product. The water-repellent semiconducting metal-shielded flame-retardant braided strap has the advantages of semiconduction, water-repellent and flame-retardant property, high heat resistance grade, high tensile strength, and energy conservation, consumption reduction and environmental protection in the production process.
Owner:YANG ZHOU TENGFEI ELECTRIC CABLE & APPLIANCE MATERIALS CO LTD

Optical dielectric ferroelectric ceramic material as well as preparation method and application thereof

The invention belongs to the technical field of ceramic materials, and particularly relates to an optical dielectric ferroelectric ceramic material as well as a preparation method and application thereof. The invention provides an optical dielectric ferroelectric ceramic material, the chemical general formula of the optical dielectric ferroelectric ceramic material is (1-x)(K0.5Na0.5)NbO3-xA(MyNb1-y) O3-delta, wherein x is 0.005-0.10, and y is 0.01-0.5, A is one or more of AII group elements, and M is one or more of transition metal elements. By introducing the transition metal, the band gap of the (K0.5Na0.5)NbO3 material is reduced, and semiconduction is realized, so that the optical dielectric ferroelectric ceramic material has high optical dielectric tuning rate, the dielectric constant of the optical dielectric ferroelectric ceramic material is changed during optical excitation, and non-contact regulation and control of light on the dielectric property of the optical dielectric ferroelectric ceramic material are realized.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Semiconduction high-voltage halogen-free flame retardant single-wall heat-shrinkable tube and preparation method thereof

The invention relates to a heat-shrinkable tube, in particular to a semiconduction high-voltage halogen-free flame retardant single-wall heat-shrinkable tube and a preparation method thereof. The heat-shrinkable tube consists of a wall, and materials of the wall comprise the following raw materials in parts by weight: 80 parts of polyolefin mixed resin, 10 parts of conductive carbon black, 10 parts of auxiliary agent, 20 parts of flame retardant and 10 parts of auxiliary flame retardant. The preparation method comprises the following steps of: preparing the material of the inner wall of the single-wall heat-shrinkable tube; extruding; irradiating; expanding; and molding. Compared with the traditional shrinkable tubes, the single-wall heat-shrinkable tube has the technical characteristics that the halogen-free flame retardant is adopted in the raw materials, and the product has good flame retardant effect, high temperature resistance, no pollution during combustion and reduced cost, issuitable for working under a high-voltage condition of 35kV, has obvious economic benefits and environment protection benefits and is suitable for large-scale popularization and application.
Owner:江苏达胜热缩防护用品有限公司

Novel power cable structure

The invention relates to a novel power cable structure belonging to the technical field of basic electronic components, and specifically relates to improvement of a power cable. The invention provides a novel power cable structure with low manufacturing cost and high environmental protection property. The novel power cable structure includes a central conductor layer, a semiconduction warping tape, an extruded semiconduction conductor shielding layer, a direct current insulating layer, an extruded semiconduction insulating and shielding layer, a first semiconduction waterproof buffer strip, a stainless protection layer, a second semiconduction waterproof buffer strip, a wrinkle copper sleeve, a polyethylene inner sheath, an armor layer and an oversheath. The novel power cable structure is characterized in that the external of the central conductor layer is successively provided with the semiconduction warping tape, the extruded semiconduction conductor shielding layer, the direct current insulating layer, the extruded semiconduction insulating and shielding layer, the first semiconduction waterproof buffer strip, the stainless protection layer, the second semiconduction waterproof buffer strip, the wrinkle copper sleeve, the polyethylene inner sheath, the armor layer and the oversheath, wherein the armor layer is formed by an inner layer plastic extrusion steel wire layer and an outer layer plastic extrusion steel wire layer.
Owner:SUZHOU YINZE LYUXIAN ELECTRONICS TECH CO LTD

Cable semiconduction fracture treatment method

The invention discloses a cable semiconduction fracture treatment method. The method comprises the following steps: firstly, preliminarily scarping a semiconduction shielding layer; uniformly warping1 to 2 layers of semiconduction tapes on an insulating layer and the semiconduction shielding layer, and performing heating vulcanization on the semiconduction tapes through a heating tape. The semiconduction shielding layer is not required to be polished after being preliminarily scraped, and the semiconduction tapes are subjected to heating vulcanization through the semiconduction tape. The vulcanized semiconduction tapes are stable, and smooth and flat semiconduction shielding positions and insulation interface transition positions can be guaranteed.
Owner:JIANGSU ZHONGTIAN TECH CABLE ACCESSORIES CO LTD

Anti-creeping aluminum alloy power cable with high performance

The present invention discloses an anti-creeping aluminum alloy power cable with high performance. The anti-creeping aluminum alloy power cable comprises a drawing single aluminum alloy conductor and stranded aluminum alloy conductors; each stranded aluminum alloy conductor is extruded with a shielding layer, a silane crosslinking insulating layer, a semiconduction shielding layer and a lapping copper strip shielding layer to form shielding conductor units; each shielding conductor unit forms a cable core unit through stranding, and the cable core unit includes filler and nonhygroscopic flame retardation materials; and the interlock armour is performed on the cable core unit, and the outermost layer is extruded with an oversheath. The anti-creeping aluminum alloy power cable with high performance is able to improve the anti-creeping performance of the aluminum alloy stranded conductor in an originally created aluminum alloy core arrangement mode, a stranded mode and a heat treatment mode.
Owner:JIANGSU DONGQIANG
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