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167results about How to "Shock resistant" patented technology

Design method of LED (light-emitting diode) dimming driving switching power supply applied to various traditional dimmers

The invention provides a design method of an LED (light-emitting diode) dimming driving switching power supply applied to various traditional dimmers. According to the design method, the LED driving power supply achieves the resistive load input-output characteristics similar to those of an incandescent light bulb, so that LED lights (semiconductor LEDs) can be well suitable for dimming of the traditional dimmers (including traditional dimmers adjusting the phases of conduction angles through leading edge phase cut and traditional dimmers adjusting the phases of conduction angles through trailing edge phase cut, wherein silicon controlled dimmers are dimmers adjusting the phases of conduction angles through leading edge phase cut) and be used in indoor places where the traditional dimmers are needed for dimming. The LED dimming driving switching power supply designed according to the design method provided by the invention comprises a dimmer starting circuit loop, a rectifying circuit, a phase detection and isolation circuit, a phase cut detection circuit, a power-factor correction circuit, a switching power supply circuit and an LED current control circuit.
Owner:叶鸣

Expansion type fireproofing glue strip for construction

The invention discloses an intumescent fireproof adhesive tape used in construction and relates to the field of fireproof sealing materials, aiming at solving the technical problems that the existing fireproof sealing tape does not have good pliability under normal temperature, thus being inconvenient for construction and installation, and can not resist high-temperature thermal current when encountering fire, etc. The intumescent fireproof adhesive tape used in construction of the invention consists of the components by parts by weight (pbw) as follows: 10 pbw to 60 pbw of rubber, 10 pbw to 40 pbw of plastic, 10 pbw to 40 pbw of compounded material, 10 pbw to 30 pbw of intumescent material, 8 pbw to 55 pbw of flame retardant material, 0 pbw to 8 pbw of lubricating material and 0 pbw to 8 pbw of stabilizing material. The intumescent fireproof adhesive tape of the invention is applicable to the blocking of perfoliate openings and fireproof sealing of building apertures.
Owner:应急管理部四川消防研究所

Underwater grouting grout based on soft-base large immersed tunnel foundation and grouting process thereof

The invention discloses a preparation of underwater grouting grout based on soft-base large immersed tunnel foundation and a grouting process thereof. The foundation is formed by a 60-cm thick macadam foundation base and a 40-cm thick sodium bentonite mortar foundation and is capable of meeting requirements for tunnel foundation rigidity and requirements for base seismic resistance and water flow scouring resistance. The grout is composed of cement, fine sand, coal ash and sodium bentonite. The grouting process is improved, and pipe inside grouting of embedded grouting holes is adopted. Therefore, large ships are not required to work on river face, underwater operation of divers and navigation risks are reduced, construction safety is greatly improved, and construction cost is reduced. The secondary grouting technology is first adopted in the field of the immersed tunnel to reduce uneven sedimentation in future operation stage of projects. The grouting process provides a reference guide and an experience guide for large dock projects, immersed tunnel projects, municipal administration soft earth foundation strengthening projects, high earthquake region basic project design and other similar projects.
Owner:CHINA RAILWAY 18TH BUREAU GRP CO LTD +6

Hydraulic underwater windmill generator

The present invention discloses a kind of hydraulic type underwater windmill power generation equipment. It includes the following several portions: blade wheel, speed-increasing box, hydraulic pump, valve control mechanism, hydraulic motor, power generator, commutation storage excitation transformation controller, power generation platform and tower frame. Besides, said invention also provides the working principle of said hydraulic type underwater windmill power generation equipment and its concrete operation method.
Owner:ZHEJIANG UNIV

All-solid electrochromic device and preparation method thereof

ActiveCN110109311AIncreased Optical Modulation AmplitudeImprove electrochemical stabilityNon-linear opticsIonElectricity
The invention relates to an all-solid electrochromic device and a preparation method thereof. The all-solid electrochromic device comprises a substrate A and a substrate B; the inner side of the substrate A is sequentially provided with a transparent conductive layer A and an anode electrochromic layer; the inner side of the substrate B is sequentially provided with a transparent conductive layerB and a cathode electrochromic layer; and a solid electrolyte layer is arranged between the anode electrochromic layer and the cathode electrochromic layer. The preparation method includes the following steps of: (1) the treatment of a substrate A and a substrate B; (2) the preparation of a cathode electrochromic layer; (3) the preparation of a cathode electrochromic layer; (4) the preparation ofa solid electrolyte layer; and (5) the preparation of an all-solid electrochromic device. The method has the advantages of simplicity and convenience; and the all-solid electrochromic device has the advantages of high ionic conductivity and high anti-aging performance. According to the all-solid electrochromic device and the preparation method thereof, a complementary electrochromic film is adopted, and therefore, with a color change requirement satisfied, the rapid complementary color change of the electrochromic device under a low voltage is realized, the use safety of glass is improved; andthe driving voltage of the device is low, so that the device has a bright application prospect.
Owner:东北大学秦皇岛分校

Pressure dispersion type yielding anchor cable

The invention discloses a pressure dispersion type yielding anchor cable. The pressure dispersion type yielding anchor cable comprises an inner anchoring section, a free section and an outer anchoring section, wherein the inner anchoring section comprises multiple levels of inner anchoring bearing bodies; n is an integer not less than 2; each inner anchoring bearing body comprises a bearing plate, a sealing shell and at least two yielding anchorage devices arranged between the bearing plate and the sealing shell; and a constant-resistance body of each yielding anchorage device is connected with an inhaul cable which passes through the bearing plate. The anchor cable disclosed by the invention can prevent a single inhaul cable from being snapped efficiently when over-great bearing force is applied to the inhaul cable, the loading capability of the whole yielding anchor cable after resisting earthquake is not changed, and the yielding anchor cable can be stretched-drawn integrally for once, so that convenience is provided for construction; a dispersion type anchoring way is adopted, so that the size of a drilling hole is small and good economical efficiency is obtained; and the pressure dispersion type yielding anchor cable, disclosed by the invention, is suitable for multiple stratum conditions and in particular for the anchoring of rock soil in earthquake regions and high-pressure deformation conditions.
Owner:杭州图强工程材料有限公司

Wall body with skin effect

The invention discloses a wall body with a skin effect. The wall body comprises a cement mortar layer, an anti-cracking net, a fixing part, a reinforcing and fixing gasket, a rib expanding net and a keel, wherein the rib expanding net is fixedly arranged on the keel through the reinforcing and fixing gasket and the fixing part; and the surface of the rib expanding net is covered with the cement mortar layer and the anti-cracking net. According to the wall body with the skin effect, the reinforcing and fixing gasket and an anti-cracking facility are additionally arranged on the basis of the prior art, so that the wall body with the skin effect has the advantages of quick construction, cracking resistance, fire resistance, water resistance, heat insulation, shearing resistance and impact resistance so as to be more practical.
Owner:谢英俊

Gypsum insulation plate and connection method thereof with major structure of construction

The invention relates to a gypsum heated board and a method for connecting the gypsum heated board and a major building structure. The gypsum heated board is divided into a double-cavity gypsum heated board and a single-cavity gypsum heated board which take gypsum as a raw material, and the two-layer cavity structure has one hollow cavity and one solid cavity or two hollow cavities; and when the two-layer cavity structure has one hollow cavity and one solid cavity, an inner cavity is the hollow cavity, the inside of an outer cavity is filled with heat-insulating materials, and the inner cavity and the outer cavity are provided with ribs which are arranged in the staggered form. The gypsum heated board is used for external heat preservation of an external wall of a building and heat preservation of roofing. The connecting method is to connect the board and the major building structure by means of exterior projecting of a concrete member or a pre-buried steel member in a wall body. The single-cavity gypsum heated board is used for internal heat preservation of the external wall of the building; the inside of the single-cavity gypsum heated board is fixed with a keel; and the single-cavity gypsum heated board is connected with the major building structure through an adhesive or an expand tube. The gypsum heated board has the advantages of reutilization of industrial waste, energy-saving raw materials, environmental protection, sound insulation, water resistance, heat preservation, good fire resistance, convenient construction, quick assembly speed and wide application scope.
Owner:天津开发区福林发展有限公司

Construction method of prefabricated part and cast-in-place column assembly integral concrete frame structure

The invention belongs to the technical field of prefabricated concrete structural design and construction, and particularly relates to a construction method of a prefabricated part and a cast-in-placecolumn assembly integral concrete frame structure. In order to overcome the defect that an existing assembly concrete structure is poor in seismic resistance, the technical scheme is adopted, the construction method of the assembly integral concrete frame structure comprises the following steps that S1, a prefabricated part is prepared, and the prefabricated part comprises a prefabricated beam and a prefabricated plate; S2, leveling, measuring and setting-out are conducted on a site; S3, a support is set up; S4, the prefabricated part is hoisted; S5, reinforcement assembling is conducted, andassembling is conducted on horizontal reinforcing bars of the prefabricated beam and the prefabricated plate and reinforcing steel bars of a cast-in-place column; S6, concrete is poured to form the cast-in-place column, and the cast-in-place column and the prefabricated part are poured into a whole; and S7, maintenance is conducted. The construction method gives consideration to both of the structural seismic resistance and the construction high efficiency.
Owner:ZHEJIANG ZHANCHENG CONSTR GROUP

Carbon monoxide conversion catalyst carrier, catalyst based on carrier, and preparation method thereof

The invention provides a catalyst carrier with conversion and adsorption purification performances. Modified bauxite added into the raw materials of the catalyst carrier has fluxing and pore-forming functions. Through modification, most of iron oxide in bauxite is removed, such that the modified bauxite contains a large amount of high-activity aluminosilicate compound. As a fluxing agent, during catalyst preparation, the aluminosilicate compound assists in significantly improving the migration rates of magnesium and aluminum ions during a roasting process, such that MgAl2O4 generation under low temperature is promoted. Therefore, the catalyst carrier provided by the invention has relatively high hydration resistance and mechanical strength. Also, with the modification treatment, modified bauxite is adopted as a macroporous hard template for preparing the catalyst. With a roasting treatment, macro-pores are formed in the catalyst carrier structure, such that the catalyst carrier has relatively high absorption purification capacity upon macromolecular particles such as oil and dust.
Owner:FUJIAN PROVINCE SINOGASHOLDER EQUIP INSTALLATION CO LTD

Numerical control conical crushing machine

The invention provides a numerical control conical crushing machine. The crushing machine is arranged on a stander; a movable cone is arranged inside the crushing machine through a bearing; a fixed cone is sleeved outside the movable cone and is supported between a carrying plate and a base plate on the stander through a hydraulic stretching machine; a pneumatic motor is arranged on one side of the stander; a motor gear of the pneumatic motor is meshed with a movable cone gear on the movable cone; a hydraulic pump is arranged at the lower part of the stander and is connected with an electromagnetic valve, a buffering machine and the hydraulic stretching machine through hydraulic oil pipes; a piston and a spring are arranged inside the hydraulic stretching machine; a distance sensor is arranged between the carrying plate and a piston rod; a numerical controller is arranged on the stander. Control data is input, so that the hydraulic stretching machine works, and data setting and data control of a distance between the movable cone and the fixed cone of the conical crushing machine are realized. The invention is suitable for numerical control conical crushing machines.
Owner:辽宁东戴河新区和陆重科有限公司

A kind of environment-friendly and energy-saving paper-faced wall panel and its manufacturing method

The invention relates to an environmentally-friendly and energy-saving paper wall board and a manufacturing method thereof. The environmentally-friendly and energy-saving paper wall board is characterized in that a board core is arranged between two composite surface layers composed of coveing papers and non-woven fabrics, the board core is prepared from the following raw materials in parts by weight: 20-50 parts of crop straw, 15-40 parts of light burned magnesium, 3-9 parts of white latex, 10-30 parts of expanded poly styrol powder and 11-33 parts of water, and the thickness of the board core is 60-300mm. Compared with the prior art, the invention has the beneficial effects that: 1) primary compression moulding is adopted, no heating or drying is required; 2) the product has the advantages of environmental friendliness, energy conservation, light weight, high compression strength, low cost and the like; 3) the crop straw and the expanded poly styrol powder are all abandoned resources, thus the effects of environmental protection and energy conservation are achieved; and 4) the environmentally-friendly and energy-saving paper wall board provided by the invention is applicable to multiple civil buildings and can be well matched and connected with various frame structures, steel structures and heterotype structures.
Owner:乔刚

Preparation method of amido functionalized gamma-aluminum oxide thin film

The invention relates to a preparation method of an amido functionalized gamma-aluminum oxide thin film for toxicity Cr(VI) adsorption. The method comprises the following steps: firstly, hydrolyzing aluminum isopropoxide in an acidic condition to obtain a sol; then, adding a film forming agent, polyvinyl alcohol (PVA), into the sol while peptizing the sol, performing hydro-thermal treatment on the mixed and stirred sol, and then performing tape casting, drying and roasting to prepare a gamma-aluminum oxide thin film; and finally, immersing the gamma-aluminum oxide thin film with an organic amine solution in a vibrating condition and successively washing and drying the film to obtain the amido functionalized gamma-aluminum oxide thin film, wherein the thin film shows excellent selective adsorption ability on Cr(VI) in a mixed solution of Cr(VI), Cd(II), Cu(II), Zn(II) and Ni(II) and etc. The preparation method provided by the invention has the advantages of being efficient and simple to prepare and mild in condition and the prepared thin film is excellent in adsorption property and can be repeatedly regenerated and recycled; in addition, the thin film adsorbing Cr(VI) is easily separated from a water body, and can be continuously recycled for many times, so that the separating efficiency is greatly increased.
Owner:WUHAN UNIV OF TECH

Striking-sounding lacrimation ejecting bomb

The invention discloses a striking-sounding lacrimation ejecting bomb which is composed of striking-sounding artillery primer and an ejecting pipe, wherein the striking-sounding artillery primer and the ejecting pipe are in threaded connection with each other. The action process is as follows: the ejecting bomb is fired by a firing mechanism, the striking-sounding artillery primer acts, makes a sound and outputs gas with certain pressure to push a slider in the spouting pipe to move forward; a lachrymator in the spouting pipe is squeezed to break through a shearing piece, and the lachrymator is linearly ejected towards a target. With the adoption of the striking-sounding lacrimation ejecting bomb disclosed by the invention, the defect that a common lacrimation spouting tank which is filled with high-pressure gas has short ejecting distance, low initial velocity, poor wind resistance and no concentration under normal state and normal pressure is overcome, the striking sound and the ejection process are closely combined together, and the striking-sounding lacrimation ejecting bomb is especially suitable for a novel striking lacrimation ejection gun. The striking-sounding lacrimation ejecting bomb has the characteristics of sounding while shooting, good sealing property, fast ejection, long ejection distance, no flyout of solid articles, and the like; in a running shooting mode, the striking-sounding lacrimation ejecting bombs are not interferenced with one another, so that the development demand on updating of anti-explosion lacrimation products is met.
Owner:北方特种能源集团有限公司西安庆华公司

Straw ash insulating mortar and method for preparing insulating plate by utilizing straw ash insulating mortar

The invention discloses straw ash insulating mortar. The mortar comprises the following components in parts by weight: 70-130 parts of straw ash, 10-130 parts of coal ash, 150-170 parts of cement, 1-2 parts of a water reducing agent, 2-4 parts of HPMC, 10-16 parts of gelatin powder, 1-3 parts of polypropylene chopped fiber, 2-4 parts of wood fibers and 0-60 parts of calcined coal gangue. The invention also discloses a method for preparing a straw ash insulating plate, which comprises the steps of mixing and stirring the components in the straw ash insulating mortar; and making a plate and forming by virtue of a plate making die and a forming press.
Owner:昌健(上海)材料科技有限公司

Refractory lining pouring material for incineration rotary kiln

The invention discloses a refractory lining pouring material for an incineration rotary kiln. A rotary kiln refractory lining comprises an outer light heat-insulating layer and an inner high temperature wear resistant layer, an outer kiln wall heat insulation layer pouring material is prepared from argillaceous porous clinker, high-alumina cement, aluminum oxide micro powder and water by even stirring for mixing, an inner high temperature wear resistant layer pouring material is prepared from high alumina bauxite, the high alumina cement, the aluminum oxide micro powder, zirconite, compound additive sodium tripolyphosphate and sodium polyacrylate and water by even stirring for mixing, the rotary kiln refractory lining poured by use of the refractory lining pouring material has the advantages of heat resistance, heat insulation and shock and wear resistance, and is suitable for use in pouring of the rotary kiln refractory lining for waste oil sludge incineration.
Owner:辽宁东野环保产业开发有限公司

Production method of anti-glare 3D glass

The invention is applicable to the technical field of glass production and provides a production method of anti-glare 3D glass. The production method comprises the steps as follows: providing a 2D glass substrate, cleaning and drying the surface of the glass substrate, and cutting the glass substrate into glass pieces in preset size; clamping and positioning the glass pieces on an CNC carving machine for edging and chamfering treatment, and cleaning and drying the surface of the glass pieces; providing a glass hot-bending device at least comprising a hot-bending mold, wherein the hot-bending mold comprises an upper mold plate and a lower mold plate, and a rough structure is arranged on the surface or in a local area of the upper mold plate and / or the lower mold plate; placing the glass pieces in the hot-bending mold for hot-press molding by the hot-bending device to obtain 3D glass with microstructure on the surface; etching the convex surface of the hot-pressed 3D glass by an etchingsolution, and performing polishing, cleaning and drying after etching treatment; arranging an anti-glare protecting film layer on the convex surface of the 3D glass and arranging an antireflection film layer on the upper surface of the anti-glare protecting film layer to obtain the corresponding anti-glare 3D glass.
Owner:仙游县元生智汇科技有限公司

Pillow capable of collecting physiological signal of human body

The invention discloses a pillow capable of collecting a physiological signal of a human body. The pillow comprises a pillow body and an elastic induction rope, wherein the induction rope is arranged in the pillow; the two ends of the induction rope are respectively fixed on the side walls of the pillow body so as to enable the induction rope to be in a natural elongation state or a stretching state; when an external force is applied to the induction rope, the induction rope generates corresponding stretching deformation to generate an electric signal. According to the pillow capable of collecting the physiological signal of the human body, the induction rope which is in the stretching state and has elasticity is arranged in the pillow, when a person rests the head on the pillow, a micro-motion signal generated by the human body can be collected, and then a corresponding human body physiological parameter is calculated out through an appointed algorithm and the like; the induction rope has elasticity, so that the induction rope does not have obvious influences on human head experience in a using process; the situation that the structure of the induction rope is damaged due to high deformation of the induction rope is not caused, so that the service life of the induction rope is prolonged; the accuracy of collecting the micro-motion signal by the pillow capable of collecting the physiological signal of the human body is further improved.
Owner:ヤンソン

Inflatable type hydropower station ecological tail gate and operation method

The invention relates to an inflatable type hydropower station ecological tail gate and an operation method. The inflatable type hydropower station ecological tail gate is mainly composed of gate blades in longitudinal symmetry and double layers of casing pipes capable of rotating relatively. The gate blades comprise rubber gate boards and supporting steel sheets; by inflating or deflating the interiors of the gate blades, the gate blades extend or contract in the vertical direction along a gate groove, and the gate is opened or closed. The double layers of casing pipes comprise the outer pipe and the inner pipe, the outer pipe is provided with an outer pipe vent groove and a downstream vent hole, an inner pipe vent groove is formed in the inner pipe, a motor drives the inner pipe to rotate to change the air flow direction, and the gate functions are switched. The inflatable type hydropower station ecological tail gate has the advantages of being simple in structure, flexible to operate, short in starting and closing time and low in manufacturing cost, and the ecological optimization function of changing the downstream water quality is achieved while the function of the hydropower station ecological tail gate is achieved.
Owner:CHINA THREE GORGES UNIV

Graphene water-borne electrothermal film coating and preparation method thereof

The invention relates to the field of novel electrothermal mateirals, and specifically relates to a graphene water-borne electrothermal film coating and a preparation method thereof. The coating comprises the following components: 40-60wt% of water-borne resin, 3-15wt% of nano graphene, 0.5-2.5wt% of mixture of calcium sulfate whisker and hydrogenated castor oil, 0.5-1.5wt% of polyaniline, 0.5-1.5wt% of polythiophene, 0.5-1.5wt% of a flatting agent, 0.5-1.5wt% of a defoaming agent, and 30-40wt% of water, totalling 100%. According to the coating, the mixture of calcium sulfate whisker and hydrogenated castor oil is added, so that the nano graphene can be prevented from agglomeration in the solution, and moreover, the defects of poor lapping of graphene laminates and incomplete power conducting and heat transferring network can be avoided, and as a result, the power conducting performance and the heating performance of the product can be improved.
Owner:厦门信果石墨烯科技有限公司

Portable military camping LED energy-saving equipment with intelligent charging function

The invention relates to portable military camping LED energy-saving equipment with an intelligent charging function. In army camp, a flashlight is used as a lighting tool, and when a back-up battery is run down, the flashlight cannot be used. The energy-saving equipment comprises a charging collection box and an LED illuminating lamp component, wherein the charging collection box comprises a box body, a waterproof seal ring and a solar energy component; a waterproof air-permeable valve and a charging interface are arranged on a bottom cover; the LED illuminating lamp component is placed in the bottom cover; the LED illuminating lamp comprises a housing, a waterproof ventilated membrane, a silica gel seal ring A, a silica gel seal ring B, a lithium battery, a circuit, an LED lamp bead component, a charging contact, a membrane keyboard and a buckle; and the circuit comprises a PWN charging management circuit and a constant-current drive circuit that are optimally designed, and has the function of dump energy automatic detection. The energy-saving equipment has a simple structure, is convenient to carry, is waterproof and air-permeable, combines the solar energy charging and the other charging manners, can be specially used for army camp training, and can also be suitable for occasions such as earthquake relief, geological exploration and field work.
Owner:深圳市雷恒科技股份有限公司

Unit-type outwards-lifted glass rib hooking system

The invention discloses a unit-type outwards-lifted glass rib hooking system which comprises an embedded part (1), a hooking piece (2) fixedly connected with the embedded part (1) and a glass rib connecting piece (3) detachably connected to the hooking piece (2). The part, extending out of the outer side of the hooking piece (2), of the glass rib connecting piece (3) is provided with mutually-parallel clamping faces, and two adjacent glass ribs (4) are inserted into the clamping faces of the glass rib connecting piece (3) and connected with the clamping faces through first fastening pieces (5) respectively. According to the unit-type outwards-lifted glass rib hooking system, the technical problems that an existing outwards-lifted glass rib hooking system cannot meet the requirement for the structure stability of large-size glass rib plates and cannot achieve the aim of splicing a plurality of glass ribs are solved.
Owner:SUZHOU KELIDA BUILDING & DECORATION CO LTD

Fiber-reinforced aerated insulation board and preparation process thereof

The invention discloses a fiber-reinforced aerated insulation board. The fiber-reinforced aerated insulation board is prepared from the following raw materials in parts by weight: 80-100 parts of fly ash, 30-50 parts of expanded perlite, 10-20 parts of ceramsite, 10-20 parts of plant fiber, 5-10 parts of floating bead, 5-8 parts of meerschaum, 3-5 parts of sodium fluosilicate, 3-5 parts of calcium formate, 2-4 parts of foamer, 0.1-0.5 part of oleic triisopropanolamine and 0.1-0.3 part of glycol dimethyl ether. According to the fiber-reinforced aerated insulation board, industrial production wastes are adopted as main raw materials, so that the production cost is reduced; through the organic combination and generated synergism of the fly ash, lightweight aggregate and additives, the defects in the existing building insulation boards can be effectively overcome.
Owner:GUANGDONG NO 1 CONSTRUCTION ENGINEERING CO LTD

Sandwich water boiler

The invention provides a sandwich water boiler comprising a housing, an insulation layer, an outer quartz glass liner, an induction heating layer and an inner quartz glass liner sequentially from outside to inside. The top of the boiler is provided with an inflow pipe and an exhaust pipe which penetrate sequentially the housing, the insulation layer, the outer quartz glass liner, the induction heating layer and the inner quartz glass liner and which open in a cavity of the inner quartz glass liner. The bottom of the boiler is provided with an outflow pipe which penetrates sequentially the housing, the insulation layer, the outer quartz glass liner, the induction heating layer and the inner quartz glass liner and which opens in the cavity of the inner quartz glass liner. The sandwich water boiler is environment friendly, free of pollution emission, energy efficient, lower in firing cost, free of environmental pollution, good in mechanical strength and thermal stability, impact resistant, long in service life, safe and reliable to use and applicable to the places such as a kitchen and a bathroom.
Owner:卢达民

Aerogel-based composite aluminum fiber acoustic panel absorber and preparation method thereof

The invention relates to an aerogel-based composite aluminum fiber acoustic panel absorber and a preparation method of the aerogel-based composite aluminum fiber acoustic panel absorber, and belongs to the field of manufacturing of metal sound absorption materials. The aerogel-based composite aluminum fiber acoustic panel absorber comprises aluminum screen plates, aerogel-based fiber felts and an aluminum fiber felt, wherein the aerogel-based fiber felts are adhered on two sides of the aluminum fiber felt, and the aluminum screen plates are adhered on the outer sides of the aerogel-based fiber felts. Compared with the prior art, the method related in the invention is wide in application range, readily available in raw materials and low in cost, the manufactured aerogel-based aluminum fiber acoustic panel absorber has the advantages of simple process equipment, quick production speed, low cost, noninflammability, good mechanical properties, high strength, good toughness, impact resistance and capabilities of withstanding high-speed air flow, water-current scouring and the like, and is further of great significance on sound absorption fields of ship cabins, vehicle bodies, aircrafts, industrial workshop ceilings, mechanical vibration engines and the like.
Owner:SHANGHAI GRAND SOUND BEYOND NOISE NEW MATERIAL

Special treatment microbial agent for sewage containing alcohol organic substance and treatment method

ActiveCN109456906ABiochemical system stabilityShock resistantFungiBacteriaPichia pastorisSide effect
The invention belongs to the technical field of bioengineering, and provides a special treatment microbial agent for sewage containing an alcohol organic substance and a treatment method. The specialtreatment microbial agent for the sewage containing the alcohol organic substance comprises one or more of pichia pastoris, lactobacillus plantarum plant subspecies, bacillus cereus, acinetobacter, alkali-producing bacteria and monilia tropicalis. The special treatment microbial agent for the sewage containing the alcohol organic substance is added into active sludge, so that high load can be effectively tolerated or harmful substances can be effectively inhibited; the removal efficiency of COD (Chemical oxygen demand) in the original biochemical system is improved; a physicochemical pre-treatment process is saved; the cost is reduced; and the treated sewage reaches comprehensive tank emission standards, and is free of side effect on an operator.
Owner:CHAMBROAD CHEM IND RES INST CO LTD

Hydraulic pump for excavator, and excavator with same

The invention relates to a hydraulic pump for an excavator. The hydraulic pump comprises a shell, a pair of rotary hydraulic cylinders arranged in the shell, and a pair of rotating shafts arranged parallelly to the rotary hydraulic cylinders, a supporting wall extends in the shell, a piston capable of reciprocating is arranged in each rotary hydraulic cylinder, the rotating shafts are connected through a coupler and used for driving the rotary hydraulic cylinders to rotate around the central axes, and an inclined disc used for receiving and guiding the corresponding piston is arranged for each rotary hydraulic cylinder and fixed relatively to the corresponding rotating shaft. The hydraulic pump is characterized in that the supporting wall is provided with a mounting hole, and the coupler is supported in the mounting hole through a sliding bearing. The invention further relates to the excavator comprising the hydraulic pump.
Owner:BOSCH REXROTH BEIJING HYDRAULIC

Plane two-dimensional inclined angle adjuster

A plane two-dimensional inclined angle adjuster mainly solves the problem that the plane included angle is simultaneously adjusted and locked and is suitable for adjusting the inclined angle at a high precision. A moving piece is fixed by a spherical line contact interference compressing method through a designer, and two inclined degrees of freedom of the moving piece in a planar normal can be ensured and the translation degree of freedom of the moving piece is limited; the rotating degree of freedom of the moving piece is limited by adopting an adjusting piece with a symmetrical inclined V-shaped groove structure and the adjustment and the locking can be performed simultaneously; the moving piece is in steel ball transition with an upper cover plate and an adjusting piece and the adjusting piece is in pin roller transition with the base, so as to reduce the static friction force; and through the driving piece, the angle of the moving piece is adjusted by adopting a manner of driving the adjusting piece through threads.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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