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47results about How to "Good anti-aging endurance" patented technology
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Grid mould release agent
The invention discloses a grid mould release agent, which comprises the following components in percentage by mass: 95.0-97.0 percent of water, 0.1-0.3 percent of polytetrafluoroethylene, 2.0-4.0 percent of cork powder, 0.15-0.2 percent of aluminum dihydrogen phosphate, 0.12-0.15 percent of adhesive and 0.2-0.35 percent of stabilizer. The mould release agent provided by the invention has the advantages of easiness in spray coating, superior adhesion, high temperature resistance, small surface tension, high pressure resistance, smooth exhaust and the like, is extremely suitable for a lead calcium alloy grid cast through gravity at a high temperature; phenomena of blowhole, cracks and the like of the grid can be extremely effectively reduced; meanwhile, mould spray frequency in a unit time can be reduced; and the production efficiency and the product quality are improved.
Owner:CHAOWEI POWER CO LTD
Solvent-resistant corrosion-resistant rubber and preparation method thereof
The invention discloses a solvent-resistant and corrosion-resistant rubber and a preparation method thereof. The solvent-resistant and corrosion-resistant rubber consists of the following parts by mass: 30-50 parts of natural rubber, 20-30 parts of nitrile rubber, and 20-30 parts of fluorosilicone rubber 30 parts, 3-7 parts of active zinc oxide, 3-9 parts of PE wax, 4-10 parts of n-butyl methacrylate, 3-8 parts of epoxy resin, 0.3-1.2 parts of anti-aging agent, 1-part of resorcinol 3 parts, polytetrafluoroethylene 6‑10 parts, coumarone resin 2‑5 parts, stearic acid 3‑6 parts, white carbon black 8‑15 parts, sulfur 10‑15 parts, accelerator AM‑2 3‑ 5 parts, 0.1-0.3 parts of anti-scorch agent CTP, the present invention is prepared by two-stage mixing method. The solvent-resistant and corrosion-resistant rubber of the invention has good resistance to organic solvents, strong acid and alkali resistance, corrosion resistance, excellent wear resistance and high temperature resistance, simple preparation, low cost and certain promotion value.
Owner:安徽省含山县锦华氧化锌厂
A method for preparing an electrode of ZIF-derived CoMoO4
ActiveCN109243863AChemically stableStable heating rateHybrid capacitor electrodesHybrid/EDL manufactureIonSolvent
The invention provides a method for preparing an electrode of ZIF-derived CoMoO4. the method is characterized in that the method uses a high temperature calcined ZIF-67 as a precursor to prepare CoMoO4 by hydrothermal method., that steps are as follow: (1) molybdate and a compound containing a Co salt are taken and stirred in deionized water until the molybdate and the compound contain the Co saltare dissolved; (2) a small amount of ZIF-67 power are added, stirred to a homogeneou solution; 3, that mixture is transferred to a reaction kettle, and the mixture is cooled to room temperature afterreaction for 2h; (4) alternately cleaning and drying are performed for 24h; (5) Ultrasonic cleaning is performed for 30 min, deionized water cleaning and ultrasonic are performed, drying is performedfor 12 h; 6) that graphite paper is dried at constant temperature, the required material is ground in a mortar, a small amount of solvent is added, uniformly dropping on the dried sheet layer, and then drying is performed, and 7) a regular-shaped electrode of ZIF-derived CoMoO4 is performed. The invention overcomes the problems of poor stability and small specific capacitance of metal oxide electrode in the prior art, and provides a preparation method of CoMoO4 derived from metal oxide electrode material ZIF with high specific capacity and good stability.
Owner:盐城市盐南高新区都市产业发展有限公司
Polyfluortetraethylene fiber filter material and preparation method thereof
ActiveCN101869793AGood chemical stabilityImprove corrosion resistanceFiltration separationPolytetrafluoroethyleneFilm coating
The invention provides a polyfluortetraethylene fiber filter material and a preparation method thereof, and the polyfluortetraethylene fiber filter material has excellent advantages of excellent high-temperature chemical stability, high filtration precision, abrasion resistance, long service life, a wide range of applications and the like, and is particularly applicable to filtration needs under harsh working conditions and environment. The polyfluortetraethylene fiber filter material is prepared by carrying out dipping treatment on polyfluortetraethylene fiber filter cloth and further carrying out film coating or coating treatment, wherein the dipping treatment adopts polyfluortetraethylene solution for dipping; and the polyfluortetraethylene solution comprises 30wt%-40wt% of polyfluortetraethylene, 20wt%-30wt% of ekonol, 1wt%-3wt% of binding agent and the balance of water.
Owner:ZHEJIANG HONGSHENG NEW MATERIAL TECH GRP CO LTD
Electronic type dust collector
InactiveCN104174493AIncrease dust collection areaImprove filtering effectExternal electric electrostatic seperatorElectrode constructionsEngineeringIonization
The invention discloses an electronic type dust collector, and relates to the technical field of air purification. First stand columns and second stand columns are arranged at the positions, between end plates, of the two sides of the end plates respectively, and the two first stand columns are arranged on the upper sides and the lower sides of the end plates respectively; ionization area guide plates are fixed between the first stand columns, and the ionization area guide plates are fixed to ionization area fixing bolts through ionization area guide plate spacer bushes; molybdenum wires are hooked on ionization area powered-on bolts through springs, and two ends of the ionization area powered-on bolts are fixed to the end plates through wiring column insulation bushes, lock nuts and power connection nuts; collection plate fixing bolts are arranged on the outer sides of collection area powered-on bolts and fixed to the end plates, four collection area electrode plate powered-on bolts are arranged between the collection plate fixing bolts, and the collection area electrode plate powered-on bolts are fixed to the end plates through wiring column insulation bushes, lock nuts and power connection nuts. The electronic type dust collector is simple in structure, good in dust collection effect, high in air purifying efficiency and high in practicability.
Owner:SHANGHAI LIREN PURIFICATION MACHINERY CO LTD
Determining system for original granularity of sintering mixture
PendingCN106404619AReduce labor intensityImprove the stability of analysis and detectionParticle size analysisGranularityUltimate tensile strength
The invention discloses a determining system for original granularity of a sintering mixture. The determining system comprises a cooling device, a detecting and sample sending device, a screening device and a microscope, wherein a discharging port of the cooling device communicates with a feeding port of the detecting and sample sending device, and the detecting and sample sending device is located between the cooling device and the screening device; the sintering mixture passes through the cooling device, the detecting and sample sending device and the screening device sequentially and is fed to the microscope for detection and observation. Compared with the prior art, the determining system has the advantages that the obtained mixture is not required to be classified during freezing of the sintering mixture, the granularity of the mixture is stable, manual stirring operation is not needed, and continuous feeding and recycling of a condensate can be realized; continuous and automatic sampling and feeding of mixture particles with different particle diameters are realized in a screening process, the stability, uniformity and reliability of sampling are improved, human unstable factors during sending are avoided, the labor intensity is reduced, the analysis and detection accuracy is improved, and the sample accuracy is effectively improved.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Multifunctional antibacterial film and preparation method thereof
InactiveCN107858683AGood chemical stabilityImprove corrosion resistanceVacuum evaporation coatingSputtering coatingNanosecondNanoparticle
The invention discloses a multifunctional antibacterial film. The multifunctional antibacterial film comprises a substrate which is covered with a silver film body. The silver film body is covered with TiO2 nanoparticles. The TiO2 nanoparticles are covered with a polytef film body. Grooves are formed in the surface of the polytef film body. By adopting the silver film body, the reflectivity can reach 99%, and the sterilization effect is improved; and the diameter of the TiO2 nanoparticles is 20-30 nm, and radical anions such as OH- and O2- can be generated in nanoseconds or picoseconds to attack surrounding bacteria. The adopted polytef film body has the good chemical stability, corrosion resistance, high lubrication performance, high non-sticking performance, high electrical insulating property and good ageing resistance, can work at +250 DEG C to -180 DEG C for a long time, and the service life of the film is ensured; and the grooves are prepared through a nanoimprint mode, the specific surface area is enlarged, and the sterilization effect is improved.
Owner:HENAN MECHANICAL & ELECTRICAL VOCATIONAL COLLEGE
Coating special for metal and production method thereof
InactiveCN108948904AGood light fastnessImprove outdoor aging performanceFireproof paintsAntifouling/underwater paintsMetal coatingGlass fiber
The invention relates to a metal coating, and in particular to a coating special for metal and a production method thereof. The coating special for metal contains the following raw materials in partsby weight: 50-60 parts of acrylic resin, 30-40 parts of polytetrafluoroethylene resin, 10-20 parts of inorganic montmorillonite, 10-20 parts of glass fiber, 20-25 parts of mica powder, 10-15 parts ofaluminium powder, 5-15 parts of ultraviolet shielding agent, 5-8 parts of butyl acetate, 3-5 pars of leveling agent, 2-3 parts of defoaming agent, 1-1.5 parts of dispersing agent, 0.8-1 part of anti-settling agent and 0.5-1 part of thickening agent. The prepared coating special for metal has excellent weatherability, fume resistance and self-cleanness, strong covering capability, good reflecting property for light and heat and strong corrosion protection; the surface of a metal workpiece processed by the coating is smooth, high in glossiness and uniform in color; and the dried paint film is excellent in chemical resistance.
Owner:广西南宁维一防腐科技有限公司
Environment-friendly dual-core heating cable for electrothermal floor heating
InactiveCN105376880AGood chemical stabilityImprove corrosion resistanceLighting and heating apparatusElectric heating systemDual coreAlloy
The invention relates to an environment-friendly dual-core heating cable for electrothermal floor heating. The elliptical heating cable is a dual-core heating cable. The cable comprises alloy heating cores, an insulating layer, a grounding layer, a shielding layer and an outer protective sheath. The high temperature resistance insulating layer wraps the alloy heating cores. Metal wires evenly wrap the insulating layer to form the grounding layer. The grounding layer and the insulating layer are connected together. The shielding layer is arranged outside the grounding layer. The shielding layer is divided into an inner layer and an outer layer, the inner layer is formed by fully wrapping an aluminium foil or by braiding a metal wire, and the outer layer is formed by winding a metal wire clockwise with the inner layer of the shielding layer being an axis. The outer protective sheath is disposed outside the shielding layer. Compared with the prior art, the environment-friendly dual-core heating cable exhibits great mechanical strength, is durable and tensile, is resistant to aging for a long time, is highly safe, enables quick heating and temperature rises, and is environment-friendly and energy-saving.
Owner:江苏彩阳环保科技有限公司
Electrochemically modified carbon cloth reinforced friction material and preparation method thereof
The invention provides an electrochemically modified carbon cloth reinforced friction material and a preparation method thereof. The method adopts a carbon fiber cloth and modified phenolic resin as raw materials, and comprises the following steps: processing the carbon cloth under electrochemical conditions, selecting a composite nickel source as an electrolyte, and processing carbon fibers by adopting an anode oxidation and cathode metal nickel deposition technologies; and spraying the processed carbon cloth with a modified phenolic resin solution, taking out the sprayed carbon cloth, naturally airing, and carrying out hot pressing molding by using a vulcanizing machine. The carbon cloth undergoes anode oxidation and cathode deposition treatment under electrochemical conditions with the composite nickel source as an electrolyte to increase the oxygen-containing function groups on the surface of the carbon cloth and uniformly deposit metallic nickel. The method has the advantages of simple device and high efficiency, and the metallic nickel has large hardness, wear resistance and catalysis activity and greatly improves the bonding strength between the carbon cloth and the resin, so the uniformity of netted polymers formed through cross-linking linear polymers in the vulcanizing process is improved, thereby the friction material has a good tribology performance.
Owner:SHAANXI UNIV OF SCI & TECH
Polyethylene glycol terephthalate plastic film used for heating cable
InactiveCN106009556AImprove flame retardant performanceImprove high temperature resistancePlastic/resin/waxes insulatorsInsulated cablesFiberPolymer science
The invention discloses a polyethylene glycol terephthalate plastic film used for a heating cable. The polyethylene glycol terephthalate plastic film comprises the following raw materials in parts by weight: polyethylene glycol terephthalate, polydimethylsiloxane, zinc stearate, triphenyl phosphate, plant powder, 6-ethyoxyl-2,2,4-trimethyl-1,2-dihydroquinoline thioether, reinforced fibers, dibutyl phthalate, polytetrafluoroethylene, oleic acid, and kaolin. The polyethylene glycol terephthalate plastic film used for the heating cable has the excellent flame resistance, high temperature resistance, mechanical strength and hardness, reduces production cost, and is suitable for large scale popularization on industrial production.
Owner:ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
Cable sheath material resistant to seawater corrosion
InactiveCN108341999AReasonable ratio of ingredientsImprove anti-agingRubber insulatorsCross-linked polyethyleneChemical stability
The invention relates to the field of polymer materials, in particular to a cable sheath material resistant to seawater corrosion. The cable sheath material resistant to seawater corrosion is composedof the following raw materials: in parts by weight, 30-50 parts of modified polytetrafluoroethylene, 8-15 parts of aluminum bronze, 45-70 parts of nitrile rubber, 3-9 parts of ceramsite, 12-18 partsof glass fiber, 15-22 parts of phenolic resin, 5-11 parts of silica sol, 10-18 parts of crosslinked polyethylene, 2-6 parts of alumina ceramic powder, 0.3-1.7 parts of potassium titanate whisker, 11-17 parts of silicone, 1-6 parts of epoxidized soybean oil and 1-8 parts of a silane coupling agent. The cable sheath material resistant to seawater corrosion has reasonable component ratios, excellentchemical stability, excellent corrosion resistance, excellent anti-aging performance, high yield, high hardness, good wear resistance and long service life.
Owner:ANHUI DUJIANG CABLE GROUP
Convenient gas detector
InactiveCN105092686ASimple structureReasonable structureMaterial analysis by electric/magnetic meansLiquid-crystal displayGas detector
The invention belongs to the field of gas detection and especially relates to a convenient gas detector. The convenient gas detector comprises a housing and an ionization chamber, an ultraviolet driver, a signal detection circuit, a single-chip microcomputer, a liquid crystal display module, a USB interface communication module and an audible and visual alarm which are arranged inside the housing. The ionization chamber is positioned at the lower part of the housing. The ultraviolet driver is disposed on the ionization chamber. The signal detection circuit is mounted near the ultraviolet driver. A micro-pump driving module is arranged at the right side of the signal detection circuit. A DC high-voltage module is arranged at the right side of the micro-pump driving module. The single-chip microcomputer is disposed above the ultraviolet driver. The liquid crystal display module is mounted near the single-chip microcomputer. The USB interface communication module is arranged near the liquid crystal display module. The audible and visual alarm is disposed near the USB interface communication module. The convenient gas detector provided by the invention has a simple and reasonable structure, is small in volume, is convenient to carry, meets real-time and continuous detection requirements of working sites and has a wide application range.
Owner:TIANJIN NAZHENG TECH
Multilayer composite felt for filtration
InactiveCN107744690ALow densityLow thermal conductivityDispersed particle filtrationMembrane filtersGlass fiberSurface layer
The invention discloses a multilayer composite felt for filtration. The multilayer composite felt for filtration includes a base cloth, a first filter layer and a second filter layer which are arranged in sequence, the base cloth is obtained through hybrid braiding of polyphenylene sulfide fibers and glass fibers and is positioned at the outermost layer, the first filter layer is made of a composite felt of glass fibers with the diameter being 0.5-3 [mu]m and glass fibers with the diameter being 20-50 [mu]m and is placed on the upper surface layer of the base cloth, and the second filter layeris made of an ultrafine glass fiber and polytetrafluoroethylene fiber composite felt and is placed on the upper surface layer of the first filter layer. The multilayer composite felt for filtration fully performs the respective performance advantages of the glass fibers, polytetrafluoroethylene and polyphenylene sulfide fibers, covers the mutual shortages, and has very good comprehensive effectsdue to performance synergism, so a novel filtering material having excellent high temperature resistance, excellent chemical corrosion resistance, good mechanical performances and excellent wear resistance is obtained.
Owner:宿迁空天新材料有限公司
Polytetrafluoroethylene composite isolation membrane for lithium battery
InactiveCN102163703AImprove performanceLong aging lifeSynthetic resin layered productsCell component detailsIsolation membranePolypropylene
The invention discloses a polytetrafluoroethylene composite isolation membrane for a lithium battery. The polytetrafluoroethylene composite isolation membrane comprises an isolation membrane which is a polyethylene microporous membrane or a polypropylene microporous membrane or a composite membrane of the polyethylene microporous membrane and the polypropylene microporous membrane; and the polytetrafluoroethylene composite isolation membrane is characterized in that: a polytetrafluoroethylene microporous membrane is coated on an end face and two sides of the polyethylene microporous membrane, or a polytetrafluoroethylene microporous membrane is coated on an end face and two sides of the polypropylene microporous membrane, or a polytetrafluoroethylene microporous membrane is coated on an end face of the polyethylene microporous membrane of the composite membrane of the polyethylene microporous membrane and the polypropylene microporous membrane and on two sides of the composite membrane. The polytetrafluoroethylene composite isolation membrane for the lithium battery can effectively isolate positive and negative plates of the lithium battery and completely eradicate a short circuit; moreover, the lithium battery is safe and reliable and has no accident in the charging and discharging processes. The polytetrafluoroethylene composite isolation membrane for the lithium battery can be used for isolating the positive and negative plates of the lithium battery.
Owner:SHANGHAI JINYOU FLUORINE MATERIALS
Protection method applicable to chaste tree twig woven products
InactiveCN107053412ASolve usabilitySolve the problem of longevityLiquid surface applicatorsWood treatment detailsPlasma depositionInstability
The invention relates to the technical field of processing of woven articles, and discloses a protection method applicable to chaste tree twig woven products. The protection method comprises the following steps that 1, new-made chaste tree twig woven products are treated at the high temperature and the low temperature alternately, on one hand, the weather resistance of the chaste tree twig woven products can be improved, on the other hand, kinetic energy of molecular movement is reduced, the instability problem caused by thermal expansion and contraction to the woven products is reduced, and the mechanical property is improved; 2, the surfaces of the chaste tree twig woven products are wetted by base solution spray before lacquering, the anti-penetrability performance and the antibacterial insect-proof antiseptic performance of the woven products can be improved, the binding force of paint can be improved, and the problems that japanning performance of the surfaces of chaste tree twigs is poor and disengagement is likely to be caused are solved; 3, the speed and environmental temperature are controlled in the japanning process, japanning is uniform, and the drying speed is increased; and 4, the chaste tree twig woven products are coated with polytetrafluoroethylene powder through a plasma deposition rapid curing method, the chemical stability, corrosion resistance and good aging resistance of the products are further improved, and the service life is prolonged.
Owner:阜南县环宇柳木工艺制品有限公司
Novel fluorine material high-temperature-resistant control cable material and preparation method thereof
InactiveCN113480867AImprove heat resistanceImprove cold resistancePlastic/resin/waxes insulatorsFluoroplastWeather resistance
The invention belongs to the technical field of cable materials, particularly relates to a novel fluorine material high-temperature-resistant control cable material and a preparation method thereof, and solves the problems that in the prior art, fluoroplastic raw materials are high in price, the performance of domestic fluoroplastic needs to be improved, and a fluoroplastic cable is difficult in production process, low in production efficiency, large in loss, high in production cost and the like. The novel fluorine material high-temperature-resistant control cable material is prepared from the following raw materials: a novel fluorine material, silicone rubber, vinylmethylsiloxane-dimethylsiloxane trimethylsiloxy terminated copolymer, zinc dibenzyl dithiocarbamate, methyl silicone oil, a filler and a stabilizer. Compared with a traditional fluoroplastic cable, the cable material prepared by the invention is higher in safety, lower in cost, good in elasticity, excellent in comprehensive mechanical property, excellent in electrical property, high in resistivity, good in fireproof and flame-retardant properties, small in smoke amount generated by combustion, and capable of being quickly self-extinguished when being away from fire; and the weather-resistant and high-low temperature-resistant cable has good weather resistance and high-low temperature resistance, and can be used for a long time in an environment of -138 DEG C to +280 DEG C.
Owner:JING FENG GRP
Lining sliding plate of warp knitting machine
InactiveCN102758308AReduce manufacturing costGuaranteed service lifeWarp knittingRolloverMetallic materials
The invention discloses a lining sliding plate of a warp knitting machine. At the time of spreading wefts, a lining weft chain of the warp knitting machine slides on the lining sliding plate. The lining sliding plate comprises a base plate made of metal materials and a lining plate made of nonmetal abrasion-proof materials. The upper end face of the base plate is provided with an elongated boss extending along the length direction of the base plate, and the lining plate is detachably arranged on the upper end face of the base plate and is in sliding connection with the lining weft chain. The upper end face of the base is further provided with a groove, the lining plate is embedded in the groove, and the height of the lining plate is larger than the depth of the groove. The base plate is optimally made from 40Cr, the lining plate is optimally made from polytetrafluoroethylene, and the lining plate is detachably arranged on the upper end face of the base plate by bolts. According to the invention, not only can the production cost of the lining sliding plate be reduced greatly, but also the lining weft chain can work stably without rollover accidents. The lining sliding plate is especially suitable for being popularized in and applied to multi-axial warp knitting machines.
Owner:CHANGZHOU RUNYUAN WARP KNITTING MACHINERY
Chip-based micro-electrochemical cell in-situ multi-field analysis testing device, method and application
ActiveCN114384142AReduce the probability of conductionLow assembly technology contentRaman scatteringLaboratory glasswaresElectrolytic agentEngineering
The invention discloses an in-situ multi-field analysis testing device and method for a chip-based micro-electrochemical cell and application, and belongs to the technical field of in-situ electricity / electrochemistry / optical testing and mechanism research of chemistry, materials and energy. Comprising a reaction tank main body, a porous transparent plate and a sample table, electrolyte is contained in an annular groove of the reaction tank main body, a transparent plate with holes covers the electrolyte groove, and a central hole of the transparent plate is used as an observation window; the chip-based micro-electrochemical cell is pressed on the lower surface of the perforated transparent plate through a sample table, and the chip-based micro-electrochemical cell and the perforated transparent plate pass through a hydrophobic gasket; the reference electrode and the counter electrode are respectively arranged in the reference electrode connecting hole and the counter electrode connecting hole through waterproof threading bolts, one ends of the reference electrode and the counter electrode are in contact with the electrolyte, and the other ends are externally connected with an electrochemical workstation; one end of the lead is connected with the sample micro-area of the chip-based micro-electrochemical cell, and the other end is externally connected with an electrochemical workstation. According to the invention, in-situ electrical / electrochemical / optical multi-field analysis can be carried out at the same time, time is saved, operation is simple and convenient, and the test success rate is high.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Sliding device of dual-tower-mast giant self-lifting crane
InactiveCN101537978AImprove tensile strengthImprove bending strengthSynthetic resin layered productsCranesEngineeringTower
The invention relates to a sliding device of a dual-tower-mast giant self-lifting crane, the device is formed by the combination of a polytetrafluoroethylene plate, an elastic padding plate and a steel bottom plate in a layered adhesion manner from top to bottom, granular micro-bumps are evenly and fully distributed on the upper surface of the polytetrafluoroethylene plate, a gap among the micro-bumps is an oil filling hole cavity, the periphery of the polytetrafluoroethylene plate is enclosed to form a circle of protective sides, and the height of the protective sides is the same with the height of the micro-bumps. One surface of the polytetrafluoroethylene plate is fixed on a steel plate, thereby having the performances of pressure resistance and difficult breakage. The polytetrafluoroethylene plate and the steel plate are connected by adopting elastic material, thereby being capable of playing the buffer role on uneven planes and being applicable to construction fields with harsh conditions. The sliding device can bear and move thousands of tons of heavy things to designated place by sliding, thereby greatly reducing friction resistance and significantly improving sliding efficiency.
Owner:史胜海
Double-core heating cable for electric floor heating
InactiveCN105472798AGood chemical stabilityImprove corrosion resistanceLighting and heating apparatusSpace heating and ventilation detailsEnvironmental resistanceInsulation layer
The invention relates to a double-core heating cable for electric floor heating. The profile of the cable is in an ellipse shape. The double-core heating cable comprises two alloy heating cores, an insulation layer, a grounding layer, a shielding layer, and an external protection sleeve, wherein the alloy heating cores are wrapped by a high temperature-resistant insulation layer; double layers of metal wires are woven and wrap the insulation layer to form the grounding layer; the grounding layer is wrapped by the polyvinyl chloride protection sleeve; the grounding layer is integrally connected with the protection sleeve; the shielding layer is disposed outside the grounding layer; the shielding layer comprises an internal layer and an external layer; the internal layer is formed by aluminum foil full wrapping or metal wire weaving; the external layer is formed by winding metal wires around the internal layer taking the internal layer as an axis clockwise; and the protection sleeve is disposed outside the shielding layer. Compared with the prior art, the double-core heating cable is good in mechanical strength, durable and anti-tensile, long time aging-resistant, high in safety performance, rapid in heating and temperature rise, environment-protecting and energy-saving.
Owner:江苏彩阳环保科技有限公司
Screw drill stator made of PTFE (Polytetrafluoroethylene) and PTFE applied to stator
ActiveCN104563858AGood chemical stabilityImprove corrosion resistanceBorehole drivesRotary piston enginesFiberCarbon fibers
The invention relates to a screw drill stator made of PTFE (Polytetrafluoroethylene) and the PTFE applied to the stator. The stator mainly comprises a stator shell and a polymer layer in sequence from outside to inside, wherein the polymer layer is made of the PTFE. The PTFE applied to the drill screw stator comprises PTFE powder and an additive, wherein the additive comprises the following components: 1-10 percent of polyether-ether-ketone powder, 0.5-10 percent of carbon fiber, 0.5-20 percent of glass fiber and 0.5-10 percent of graphite, and the balance is the PTFE powder. The screw drill stator made of the PTFE with reasonable compatibility has favorable toughness at about 170 DEG C, and can withstand long-term corrosion of drilling fluid as well as strong acids and strong alkali, the service life is prolonged to over 250h, the maintenance period is prolonged, and further, the production cost and the maintenance cost of equipment are reduced.
Owner:ZHEJIANG GREEN NEW MATERIALS
Sewage recovery and transportation device for biochemical sewage treatment tank
InactiveCN109179793AEfficient mixingWell mixedSpecific water treatment objectivesTreatment involving filtrationSludgeSewage
The invention discloses a sewage recovery and transportation device for a biochemical sewage treatment tank and relates to the technical field of sewage recovery and transportation devices. The sewagerecovery and transportation device comprises a mixing tank, a second water pipe and a coarse filter net. A stirring motor is installed above the mixing tank. A stirring shaft is installed below the stirring motor. A sedimentation tank is installed on the right side of the second water pipe. The second water pipe is located below the mixing tank. The front end of the sedimentation tank is providedwith a third water pipe. The middle of the third water pipe is connected to a forth water pump. The first and second water pipes cooperate so that the sewage generated in a dirt storage chamber is effectively introduced into the sedimentation tank and is circulated. The dirt storage chamber can effectively collect the sludge to facilitate centralized treatment on the sludge by the user. The coarse filter net can effectively prevent the sludge from being reintroduced into the sedimentation tank.
Owner:FOSHAN UNIVERSITY
Polytetrafluoroethylene traction pipe
InactiveCN104847965AImprove the blocking effectReduce labor intensityPipe laying and repairArchitectural engineeringRoad surface
The invention discloses a polytetrafluoroethylene traction pipe which comprises an outer pipe, a cylindrical sealing plug, a U-shaped traction ring and a cross-core bolt. The outer diameter and the wall thickness of the outer pipe are the same as those of a dragged polytetrafluoroethylene pipeline. A radial through hole is formed in the position, a half length away from the end, of the cylindrical sealing plug. The cross-core bolt penetrates into the radial through hole. The two ends of the cross-core bolt are fastened through nuts after extending out of the outer pipe and the through hole of the U-shaped traction ring. The problems that in the non-digging tubular product construction process, flattening and breaking are prone to happening are solved, and the polytetrafluoroethylene traction pipe can go into earth by 18 m or above to conduct traction construction, is suitable for construction of cross rivers, buildings, railways, roads and the like without conditions of road surface digging, saves time and labor, and improves the work efficiency and product safety.
Owner:WUXI LONGSHUN IND
A kind of cable for new energy vehicle that is easy to wind up and its winding method
ActiveCN112712926BExtend the lifespanEasy to stretchInsulated cablesInsulated conductorsCopper wireNew energy
Owner:欧耐特线缆集团有限公司
Ceramic tile
The invention provides a ceramic tile, which comprises a ceramic tile body, wherein a membrane layer is also connected with the surface of the ceramic tile body. The surface of the membrane layer is coated with polyfluortetraethylene through spraying; and the membrane layer is movably connected with the ceramic tile body. The ceramic tile can be conveniently used, can help people clean the ceramic tile more effectively, and can keep a cleaning function; and when the ceramic tile in the scheme is used, the ceramic tile is hard for impurity adhesion, such that the service performance of the ceramic tile is greatly improved. Moreover, as the membrane layer is movably connected with the ceramic tile, when the membrane layer is used for a certain time, the membrane layer can be replaced from the ceramic tile, thereby the using effect is further improved.
Owner:上海市建青实验学校
Guide wire for peripheral vascular interventional therapy
InactiveCN112972781AReduce damageEnhance light and shadow intensityGuide wiresSurgeryPolytetrafluoroethylenePeripheral blood
The invention discloses a guide wire for peripheral vascular interventional therapy. The guide wire comprises a handheld end and a polytetrafluoroethylene coating, one side of the handheld end is fixedly connected with a head end, a core wire is arranged in the handheld end, and one side of the outer portion of the handheld end is coated with the polytetrafluoroethylene coating. According to the guide wire for peripheral vascular interventional therapy, a tungsten-containing developing layer is arranged, the head end, a gradually-changing diameter section and the outside of a straight section are tightly coated with the tungsten-containing developing layer, and the head end and one side of the exterior of the core wire are provided with the tungsten-containing developing layer, so that the light and shadow intensity in a certain area can be enhanced, a developing effect can be greatly improved by enhancing the light and shadow intensity in an enhancement area, the diameter of the straight section of the head end can be reduced to 0.08-0.12 millimeters through the gradually-changing diameter section of the core wire, the head end of the guide wire can be softer by reducing the diameter of the straight section to 0.08-0.12 millimeters, the ability of the guide wire to pass narrow and closed sections can be enhanced through a softer guide wire, and the light and shadow intensity in the enhancement area is achieved, and the developing effect is improved.
Owner:深圳麦普奇医疗科技有限公司
Repair material and preparation process thereof
The invention discloses a repair material and a preparation process thereof. The preparation process comprises the following processing steps: S1, feeding waste polyvinyl chloride, polyurethane waste, polytetrafluoroethylene, calcium stearate, an antioxidant, a plasticizer, a catalyst and a lead salt stabilizer into a mixer, setting the heating temperature to be 200 DEG C, and accelerating melting under the action of a stirring shaft; S2, discharging the obtained mixture from a main feeding port and a side feeding port of a double-screw extruder, and mixing the mixture in the double-screw extruder at the rotating speed of 400-600 r / min for 10-15 min; and S3, cooling and pelletizing the mixed material to obtain polyvinyl chloride regenerated plastic granules. The polytetrafluoroethylene is added into the waste plastic, and the polytetrafluoroethylene is polymerized to form a high-molecular compound, so that the chemical stability, corrosion resistance, sealing property, high lubrication non-stick property, electrical insulating property and good anti-aging endurance of the regenerated plastic can be improved, and the performance of the plastic can be recovered and improved.
Owner:姜坤
A zif derived comoo 4 The preparation method of the electrode
ActiveCN109243863BGuaranteed purityIncrease specific volumeHybrid capacitor electrodesHybrid/EDL manufactureCapacitanceMolybdate
Owner:盐城市盐南高新区都市产业发展有限公司
Aluminum mold of auto engine and preparation method thereof
InactiveCN111826662AGood chemical stabilityImprove corrosion resistanceShaping toolsElectrolytic coatingsPolytetrafluoroethyleneCorrosion
The invention provides an aluminum mold of an auto engine and a preparation method thereof. The aluminum mold is successively provided with an aluminum mold body, a buffer layer, a graphene wear-resistant layer and a zirconium oxide corrosion-resistant layer from inside to outside, wherein the buffer layer is a nickel-polytetrafluoroethylene coating and covers the outer surface of the aluminum mold body, and the graphene wear-resistant layer is arranged between the buffer layer and the zirconium oxide corrosion-resistant layer. By coating the surface of the aluminum mold in multiple layers, the aluminum mold has excellent chemical stability and corrosion resistance and good ageing resistance.
Owner:张宗洲
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