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48results about How to "Increase bonding surface" patented technology

Asphalt base composite material for pavement crack repair

The invention discloses an asphalt base composite material for pavement crack repair. The asphalt base composite material for pavement crack repair is prepared from a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 120-150 parts of anionic emulsified asphalt, 1-3 parts of water reducing agent, 1-3 parts of defoaming agent, 3-8 parts of binder and 0-10 parts of water, and the component B comprises the following raw materials in parts by weight: 100 parts of cement, 70-110 parts of sand and 0.01-0.06 part of expanding agent. The asphalt base composite material for pavement crack repair has the flexibility of asphalt, the rigidity of cement and certain strength, is used for crack pouring and can bear and transfer loading force; the binder is added to the material so as to play a role of reinforcing the binding force between the material and crack walls, so that the service life of a pavement is prolonged, and the re-cracking phenomenon is difficult to occur. The asphalt base composite material for pavement crack repair has the advantages of low cost price, simple construction, low requirements on constructors, low energy consumption, low cost, strong binding power and long useful life and can be widely applied to the pavement crack repair.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Metallic bond, diamond grinding wheel prepared through bond and preparation method of diamond grinding wheel

The invention relates to a metallic bond, a diamond grinding wheel prepared through the bond and a preparation method of the diamond grinding wheel. The metallic bond comprises, by weight percent, 95%-99% of copper-tin prealloyed powder, 0.5%-3% of graphite powder and 0.5%-2% of nanometer alpha-Al2O3. The copper-tin prealloyed powder, the graphite powder, the nanometer alpha-Al2O3 and diamond are taken according to a certain proportion, procedures of burdening and material mixing, pelletizing, compression, sintering and aftertreatment are carried out in sequence, and tool bits can be prepared. The multiple tool bits are arranged on a matrix at equal distance in the circumferential direction, the cambered surfaces of the tool bits are perpendicular to the matrix, and the diamond grinding wheel is prepared. The above tool bits are uniform in ingredient and good in density, diamond distribution is uniform, and the control effect of the metallic bond on the diamond is good. The grinding wheel has the beneficial effects of being good in ground workpiece surface quality, free of dark cracks and scratches, sharp in grinding and long in service life, facilitating large-scale production and the like and is especially suitable for producing sapphire wafers with the thinning thickness ranging from 100 micrometers to 700 micrometers.
Owner:BEIJING GANG YAN DIAMOND PROD CO +1

Positioning embedded bricklaying

The invention relates to a positioning inlaid brick which comprises a brick body. At least one convex body in straight line shape, crisscross shape, Character ''Jing'' shape or boss shape is made on at least one end face of the brick body, and at least one groove in straight line shape, crisscross shape, Character ''Jing'' shape or boss shape is made on the corresponding end face of the brick body; adjacent bricks are scarf jointed by convex bodies and corresponding grooves. The invention can effectively enlarge the bonding face between adjacent bricks, improve the bonding strength between bricks, so as to improve the strength of the wall. Scarf joint between the convex bodies and the grooves can play a good role of positioning, improve the longitudinal pulling force and lateral pushing force of the wall, to make the vertical and horizontal lines as well as plane effect of wall building have good effect; scarf joint of the convex bodies and the grooves also can effectively save the bonding materials, which can not only improve the wall engineering quality, but also reduce the engineering construction cost; and scarf joint of the convex bodies and the grooves is applicable to all burning-free bricks, burnt bricks, hollow bricks, solid bricks, half-hollow bricks and stone bricks.
Owner:何荣灿

Flexible coupling

The invention provides a flexible coupling, comprising a cylinder body and flanges which are arranged at two ends of the cylinder body. The invention is characterized in that the cylinder body is an FRP cylinder body; the flanges are fixedly connected with or integrated into a whole with a taper sleeve or a cylinder sleeve; the two ends of the FRP cylinder body are sheathed with, fixedly bonded to or fixedly connected with the taper sleeve or the cylinder sleeve respectively. The invention is especially suitable for the connection of a speed increasing box in wind power generation equipment and a wind power generation set, plays a good damping and impact and vibration absorption role, has the capability of providing the displacement compensation, effectively improves the motion quality and stability of transmission machines, reduces the noise and improves the safety performance of the equipment.
Owner:黄顺国

Ceramic parquet board and its production process

The present invention relates to a new-type ceramic match board and its production process, including match component manufacturing match component splicing, and is characterized by that a bearing layer is fixed on the bottom surface of the spliced ceramic match board, then the upper surface of the ceramic match board with bearing layer is ground and polished for flatness and smoothness. This invented ceramic match board is not easily subject to break and crack.
Owner:王智新

Wrist-guarding mouse

The invention relates to a wrist-guarding mouse which mainly comprises a mouse body. The wrist-guarding mouse is characterized in that a wrist-guarding bracket is adhered to the tail of the mouse body and mainly comprises a base plate; the front end of the base plate is vertically connected with a connecting plate; and the rear end of the base plate is connected with a vertical bracket. The distance between the vertical bracket and the connecting plate is moderate, so that the rear part of the wrist is laid on the vertical bracket when the wrist-guarding mouse is in use and a wrist joint is just suspended. Therefore, the damage to the part by friction is avoided and the permeability is kept. The front surface of the connecting plate at the front end of the bracket is in type fit with the outer surface at the tail of the mouse body, and thus a bonding surface becomes larger and better firmness and stability are achieved. The upper surface of the bracket at the rear end of the base plate can be set to be an arc concave surface which is matched with the wrist in shape; and a foam filling layer is adhered to the surface to enable the wrist-guarding mouse to be used more comfortable. In addition, the bracket body can be made of plastic, so that the bear load of the mouse body is reduced; meanwhile, the plastic bottom surface is also convenient to slide.
Owner:吴江市金家坝小学

Graphite adhesive and preparation method thereof

The invention discloses a graphite adhesive. The graphite adhesive consists of the following raw materials: pitch, graphite powder, petroleum coke powder, resin, stearic acid, a foaming agent and oleic acid. The invention also discloses a preparation method of the graphite adhesive. The method comprises the following steps: melting pitch; performing first mixing-kneading; adding resin and stearic acid for mixing-kneading; performing second mixing-kneading; adding graphite powder and petroleum coke powder for mixing-kneading; discharging from a kettle at the discharging temperature of 90+ / -5 DEG C, cooling, and bagging for later use; breaking, i.e., breaking mixed raw materials; stirring, i.e., adding the foaming agent and the oleic acid and stirring the mixture, thereby obtaining the graphite adhesive; and if needing premolding, placing the prepared graphite adhesive into a mold for premolding. The graphite adhesive has the most outstanding characteristics that the graphite adhesive can be foamed within the temperature range of 100-200 DEG C to enlarge the adhesive surface, thereby firmly adhering graphite pieces effectively and splicing small-sized graphite pieces or simple-structure graphite pieces into a large-sized graphite piece or a complicated-structure graphite piece; the graphite adhesive can also be used for adhering graphite electrodes.
Owner:CHENGDU RONGGUANG CARBON

Method for quickly measuring tensile mechanical properties of rocks

The invention provides a method for quickly measuring tensile mechanical properties of rocks. The method comprises the following steps: step (1), manufacturing a rock sample; step (2), enabling the two ends of the rock sample to be bonded with clamping sleeves in clamping assemblies respectively by using super glue, and rapidly cooling and curing the super glue between the two ends of the rock sample and the clamping sleeves through a rapid condensing device; step (3), after the two ends of the rock sample are firmly bonded with the clamping sleeves, taking out the rock sample from the rapid condensing device, and assembling the clamping sleeves at the two ends of the rock sample and the rest components in the clamping assembly, fixedly installing the clamping assemblies at the two ends ofthe rock sample on a tensile testing machine, and starting to measure the tensile mechanical property of the rock sample; step (4), after stretching is finished, taking down the rock sample and the clamping assemblies, and rapidly splitting the rock sample and the clamping assemblies; step (5), repeating the above steps (1) to (4), and continuing to measure the tensile mechanical properties of several rock samples; and step (6), ending the test. The method for quickly measuring the tensile mechanical properties of the rocks provided by the invention is convenient and rapid to assemble and disassemble and capable of improving the test efficiency.
Owner:GUIZHOU UNIV OF ENG SCI

Segment prefabricated and assembled bridge pier stud and construction method thereof

The invention discloses a segment prefabricated and assembled bridge pier stand. The pier stand comprises a bearing platform, a pier stud body and a bent cap connecting segment which are arranged frombottom to top, and the pier stud body is prefabricated and assembled in a segmented mode and comprises a plurality of same pier stud sections; the lower portion of each pier stud section is a protruding prismoid, the upper portion of each pier stud section is a prismoid groove, the protruding prismoid and the prismoid groove are nested in a spaced mode, vertical steel bars are pre-buried in the pier stud sections and protrude upwards, and grouting sleeves are arranged at the lower ends of the vertical steel bars and connected with the vertical steel bars; the upper portion of the bearing platform is an annular protrusion, vertical steel bars are embedded in the annular protrusion and protrude upwards, and a prismoid groove is formed in the annular protrusion on the upper portion of the bearing platform; the lower portion of the bent cap connecting section is a protruding prismoid, vertical reinforcing steel bars are embedded in the lower portion of the bent cap connecting section, grouting sleeves are arranged at the bottoms of the vertical reinforcing steel bars and connected with the vertical reinforcing steel bars, and the protruding prismoid on the lower portion of the bent cap connecting section and prismoid groove in the upper portion of each pier stud section are nested in a clearance mode. The bridge pier stud is good in stress and stable in structure. The invention further discloses a construction method of the bridge pier stud. Construction is convenient and efficient.
Owner:THE SECOND CONSTR OF CTCE GROUP +1

Lens and LED light source device adopting same

The invention is applicable to the technical field of optics, and provides a lens. The lens has an elliptical base, an elliptical upper part, and a body connecting the elliptical base and the elliptical upper part. The elliptical base is provided with a concave cavity for accommodating an LED wafer. The ratio of the short axis to the long axis of the elliptical base is 0.5-0.75. The light emittedby the LED wafer is refracted into the lens through the top surface of the concave cavity, and then, refracted to a preset illumination area through the surfaces of the body and the elliptical upper part. The stray light around the preset illumination area is greatly reduced, the effective light intensity in the center is correspondingly enhanced, and the requirements of various LED light source devices, especially an infrared emitter tube, for the spot are fully met. In addition, according to an LED light source device provided by the embodiment of the invention, an LED support and the bottomof the lens are bonded by adhesive glue, and the area between the side of the concave cavity and the side of the LED wafer is also filled with adhesive glue. Thus, the bonding surface between the lens and the LED support is greatly expanded, the firmness of the lens bonded to the LED support is greatly enhanced, and the failure rate caused by the lens falling off the LED support is greatly reduced.
Owner:XI AN RAYSEES TECH CO LTD

Sand leaf-disk for machining metal workpiece

The present invention relates to one kind of abrasive cloth disc for machining metal workpiece, and the abrasive cloth disc consists of one basal body and one abrasive cloth layer. The abrasive cloth layer is adhered by means of adhesive onto the basal body, and the basal body is one integral punched metal member of 0.2-2.0 mm thick sheet and with one central installation hole. The present invention has environment friendship, high integral strength and low cost.
Owner:张占发

Heat-insulated composite refractory brick

The invention relates to a refractory brick, in particular to a heat-insulated composite refractory brick. The heat-insulated composite refractory brick comprises a top guimo brick layer, a middle filled block and a lower phosphate brick layer, wherein the lower surface of the phosphate brick layer is a concave-convex surface, grooves are formed in the concave portions, and the guimo brick layer is provided with clamping grooves corresponding to the grooves; the heat-insulated composite refractory brick further comprises clamping springs, and the two ends of each clamping spring are embedded into the corresponding groove and the corresponding clamping groove. According to the heat-insulated composite refractory brick, the guimo brick layer, the middle filled block and the lower phosphate brick layer are fixed together through the clamping springs and are not prone to fall off; the lower surface of the phosphate brick layer is the concave-convex surface and can be an uneven surface formed by a corrugated surface and broken lines in multiple shapes for reducing heat expansion deformation of the surface of the phosphate brick layer, increasing the bonding surface of the phosphate brick layer and a bonding agent and decreasing the possibility that the phosphate brick layer falls off due to deformation between the phosphate brick layer and the bonding agent.
Owner:YIXING XINGBEI REFRACTORIES PROD

Diamond grinding tool and preparation thereof

The present invention relates to a diamond grinder and a fabrication method thereof. The grinding layer of the diamond grinder includes a diamond-grinding block embedded in a resin substrate, and the outer surface of the diamond-grinding block is of irregular folding embossings. The diamond-grinding block is shaped like a vertical, curved or inclined cylinder, prism, circular platform, truncated cone or truncated pyramid, and the surface is provided with multiple layers of irregular folding embossings. The top and / or bottom of the diamond-grinding block are provided with projections. The resin substrate and the diamond-grinding block are formed on a clamping head or a nylon wire layer or a nylon hook layer, and the corresponding nylon wire layer or nylon hook layer is arranged on the top surface and / or lateral surface of a midbody which is connected with the clamping head. The midbody is an elastic body or a rigid body. The present invention is characterized in simple and reasonable structure, strong bonding property of the diamond-grinding block and the resin, low fabrication cost, flexible operation and long service life.
Owner:广东奔朗新材料股份有限公司

Dustproof plug for mobile phone

InactiveCN102683967AWill not separate and loosePrevent the phenomenon that cannot be pulled outLive contact access preventionState of artPolymer science
The invention relates to a dustproof plug for a mobile phone. The dustproof plug consists of a decoration and a rubber sleeve, wherein the decoration is fixedly provided with an alloy contact pin, a groove is arranged on the side wall of the alloy contact pin, the rubber sleeve is provided with a slot adaptive to the alloy contact pin which is inserted in the slot and then is fixed by adhesion of glue. The dustproof plug can enable solidified glue to form a clamping jaw in the groove for clamping the alloy contact pin, also obviously enlarges the contact area between the decoration and the rubber sleeve compared with the connection structure in the prior art, increases the bonding surface between the decoration and the rubber sleeve, enables the bonding effect to be better, ensures the connection reliability between the decoration and the rubber sleeve, prevents the decoration from being separated from the rubber sleeve in use process, and eliminates the phenomenon that the corresponding rubber sleeve cannot be pulled out after independently sinking in the jack of a mobile phone earphone; and the dustproof plug has very high reliability and safety.
Owner:LEO CREATIVE SHANGHAI

Anti-short-circuit lithium battery electrode lug

The invention discloses an anti-short-circuit lithium battery electrode lug. The anti-short-circuit lithium battery electrode lug comprises a strap-shaped flat conductor. Insulating membranes are arranged on the two sides of the strap-shaped flat conductor respectively. The lower end edge of the insulating membrane on one side is longer than the lower end edge of the insulating membrane on the other side by 1 mm or more. The portion, going beyond the lower edge of the insulating membrane on the other side, of the lower end edge of the insulating membrane on one side is located at the bent position of an outer wrapping electrode lug when the electrode lug is bent. According to the anti-short-circuit lithium battery electrode lug, the lower end edges of the two insulating membranes located on the two sides of the strap-shaped flat conductor are not aligned, the lower end edge of the insulating membrane on one side is longer than the lower end edge of the insulating membrane on the other side by 1 mm or more, the portion, going beyond the lower edge of the insulating membrane on the other side, of the lower end edge of the insulating membrane on one side is located at the bent position of the outer wrapping electrode lug when the electrode lug is bent, the situation that the conductive part is exposed after the electrode lug is bent can be avoided, short-circuit accidents are reduced, and meanwhile the bonding faces of the strap-shaped flat conductor and the insulating membranes can be enlarged so that the insulating films can be not prone to falling.
Owner:JIANGMEN TUOLIAN ELECTRONICS TECH

Method for bonding one adhesive member with a second adhesive member and adhesive partner or knife bearing

The invention firstly relates to a method for bonding a first adhesive member (7) with a second adhesive member (6) by means of a photo-curing adhesive (11). In order to improve a method of the type in question, it is proposed that the photocuring by blue light (B) directed to the outer surface of the first adhesive member (7) is performed, wherein the first adhesive member (7) is transparent. Furthermore, the invention relates to adhesive member (6, 7). The invention also relates to a blade bearing (1) for a food processor, with a shaft (2) arranged in a pot (4) through the shaft bearings (3). The pot (4) is provided with a lid (5). To realize a high-strength connection between two members without great expenditure of time, it is proposed that the first adhesive member (7) and the pot (4) with the second adhesive member (6) and the cover (5) by means of a photocuring adhesive (11) is glued and that the photocuring by blue light (B) is carried out.
Owner:VORWERK & CO INTERHOLDING GMBH

Cutting device for rubber ring

The invention discloses a cutting device for a rubber ring. The cutting device for the rubber ring comprises a workbench. A support frame is arranged at the right side of the workbench; a fixed frameis arranged at an upper middle position of the workbench; a cutting rod is movably connected with the fixed frame through a rotary shaft; a blade is arranged on the cutting rod; a horizontal guide plate is arranged at the left side of the workbench; a straight ruler is arranged on the guide plate; an inclined angle is formed between the cutting rod and the guide plate; and the angle range of the inclined angle is 120 degrees to 180 degrees.
Owner:李武

Aluminum corrugated board and processing method

The invention discloses an aluminum corrugated board and a processing method, the aluminum corrugated board comprises a fluorocarbon coated aluminum panel, a polyester coated aluminum bottom plate, an aluminum corrugated core, a first viscous adhesive film layer and a second viscous adhesive film layer, the polyester coated aluminum bottom plate is arranged at the bottom of the panel, the second viscous adhesive film layer is adhered to the top of the polyester coated aluminum bottom plate, the first viscous adhesive film layer is adhered to the bottom of the fluorocarbon coated aluminum panel, and the aluminum corrugated core is arranged at the center of the fluorocarbon coated aluminum panel and the center of the polyester coated aluminum bottom plate, the fluorocarbon coated aluminum panel, the polyester coated aluminum bottom plate and the aluminum corrugated core are adopted as raw materials and are compounded and compacted under the high-temperature condition to form the aluminum corrugated board, a traditional direct bonding processing mode is abandoned, the bonding surfaces of the aluminum corrugated core, the fluorocarbon coated aluminum panel and the polyester coated aluminum bottom plate are cambered surfaces, so that the bonding surfaces are larger, the bonding strength is higher, and in addition, the aluminum corrugated board is light in weight, environment-friendly, sound-proof, heat-insulating, good in rigidity and higher in flatness.
Owner:金言实业集团有限公司

Three-dimensional sandwich textile material filled by phenolic aldehyde foams

InactiveCN102049887AImprove strength and impact resistanceReduce weightCovering/liningsSynthetic resin layered productsEngineeringTextile
The invention discloses a three-dimensional sandwich textile material filled by phenolic aldehyde foams. The textile material is characterized by comprising an upper textile surface, a middle sandwich structure, and a lower textile surface; the middle sandwich structure takes a three-dimensional sandwich textile material as a support body, and takes phenolic aldehyde foams as a filling substrate; the middle sandwich is connected with the upper textile surface and the lower textile surface; the upper textile surface is a plane structure; and the lower textile surface is a polygons structure. Compared with the prior art, the three-dimensional sandwich textile material filled by phenolic aldehyde foams has the advantages of heat preservation, sound insulation, pressure resistance, high strength and good fireproof performance.
Owner:SUZHOU HAOHAI ENERGY SAVING ENVIRONMENTAL PROTECTION MATERIAL

Double-side attaching aluminum foil paper for cigarette

The invention discloses double-side attaching aluminum foil paper for a cigarette. The double-side attaching aluminum foil paper comprises an aluminum foil paper layer and a bonding layer, wherein butterfly grooves are uniformly formed in one side of the aluminum foil paper layer. A production process of the double-side attaching aluminum foil paper for cigarettes comprises the following steps ofS1, uniformly pressing one side of the double-side smooth aluminum foil paper into groove surfaces comprising butterfly grooves by a rolling pressing machine to obtain the aluminum foil paper layer; S2, uniformly coating an adhesive layer onto the groove surface of the aluminum foil paper layer to obtain a single-side aluminum foil paper; respectively putting the single-side aluminum foil paper onto placing frames arranged at the two sides; using a heat insulation conveying machine for simultaneously conveying the single-side aluminum foil paper at the left side and the right side to a position between attaching roller groups; performing pasting for bonding the adhesive layers of the two pieces of single-side aluminum foil paper to form the adhesive layer; S3, continuously feeding the pasted aluminum foil paper into shaping roller groups to be pressed and shaped; performing air cooling and edge cutting to obtain a finished product. The prepared double-side pasting aluminum foil paper for the cigarette has a good dampproof effect, and can be stored for a long time in various environments.
Owner:CHUZHOU CIGARETTE MATERIALS FACTORY

Polyurethane thermal insulation composite tube and forming device thereof

The invention relates to the technical field of polyurethane thermal insulation materials, in particular to a polyurethane thermal insulation composite tube. The polyurethane thermal insulation composite tube comprises an inner tube, wherein the outer wall of the inner tube is evenly covered with an anti-corrosion layer; the inner tube is sleeved with an outer tube; a polyurethane insulation coating is filled between the anti-corrosion layer on the outer tube and the anti-corrosion layer on the inner tube; the outer tube is wrapped with a thermal insulation layer. A forming device of the polyurethane thermal insulation composite tube comprises a foaming extrusion machine head, wherein a round hole matched with the diameter of an inner tube is formed in the middle of the foaming extrusion machine head, the foaming extrusion machine head is rotationally sleeved with an outer tube extrusion machine head, and a spraying box is arranged at one side of the tail end of the foaming extrusion machine head. By means of the matching structure of the foaming extrusion machine head and the outer tube extrusion machine head, the inner tube can penetrate through, meanwhile, wrapping and covering of the outer tube and filling of the polyurethane insulation coating are conducted, the inner tube, the polyurethane insulation coating and the outer tube are synchronously formed in a section of area, higher efficiency is achieved, and the integrity of the tube is higher after the tube is formed.
Owner:浙江天诚绝热科技股份有限公司

Waterproof sealing structure for top of columnar object and antenna

The invention discloses a waterproof sealing structure for the top of a columnar object. The waterproof sealing structure comprises a shell and a top cover, the shell is columnar, the lower end of shell is provided with an opening, and the upper end of the shell is provided with a sealing surface; an opening is formed in the center of the sealing surface; the top cover is matched with the opening;an extending part protrudes downwards from the opening of the sealing surface; the extending part is hollow and penetrates up and down; and the radial section of an inner cavity of the extending partis the same as that of the opening, the side wall of the top cover is bonded with the inner wall of the opening through a first waterproof glue layer, the edge of the lower end of the top cover is provided with a second waterproof glue layer, the second waterproof glue layer is arranged below the top cover, and the second waterproof glue layer is arranged in the extending part. The invention further discloses an antenna adopting the waterproof sealing structure for the top of the columnar object. According to the waterproof sealing structure for the top of the columnar object and the antenna,it can be guaranteed that the wall thickness of the columnar shell is uniform, the waterproof performance of the sealing end is good, internal components of the shell cannot be affected, production is convenient, and the production cost is low.
Owner:洪姣

Forming device for polyurethane thermal insulation composite pipe

The invention relates to the technical field of polyurethane thermal insulation materials, in particular to polyurethane thermal insulation composite pipes, including an inner pipe, the outer wall of the inner pipe is evenly covered with an anti-corrosion layer, and an outer pipe is provided on the outer wall of the inner pipe, and the anti-corrosion layer on the outer pipe and the inner pipe The polyurethane insulation layer is filled in between, and the outer pipe is covered with a heat insulation layer. The molding device of the polyurethane insulation composite pipe includes a foaming extrusion head, and the middle of the foaming extrusion head is provided with an inner pipe. Round holes with matching diameters, and an outer tube extruder head is set on the outer rotating sleeve of the foam extruder head, and a spray box is arranged on the tail end side of the foam extruder head. The present invention can realize the wrapping and covering of the outer pipe and the filling of the polyurethane insulation layer while the inner pipe passes through the matching structure of the foam extrusion head and the outer pipe extrusion head, so that the inner pipe, the polyurethane insulation layer and the The outer tube is formed synchronously in a certain area, which is more efficient and makes the integrity of the tube higher after forming.
Owner:浙江天诚绝热科技股份有限公司

An asphalt-based composite material for pavement crack repair

InactiveCN103613333BImprove adhesionEmbodies elasticity and toughnessRoad surfaceStrong binding
The invention discloses an asphalt base composite material for pavement crack repair. The asphalt base composite material for pavement crack repair is prepared from a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 120-150 parts of anionic emulsified asphalt, 1-3 parts of water reducing agent, 1-3 parts of defoaming agent, 3-8 parts of binder and 0-10 parts of water, and the component B comprises the following raw materials in parts by weight: 100 parts of cement, 70-110 parts of sand and 0.01-0.06 part of expanding agent. The asphalt base composite material for pavement crack repair has the flexibility of asphalt, the rigidity of cement and certain strength, is used for crack pouring and can bear and transfer loading force; the binder is added to the material so as to play a role of reinforcing the binding force between the material and crack walls, so that the service life of a pavement is prolonged, and the re-cracking phenomenon is difficult to occur. The asphalt base composite material for pavement crack repair has the advantages of low cost price, simple construction, low requirements on constructors, low energy consumption, low cost, strong binding power and long useful life and can be widely applied to the pavement crack repair.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Super-power loudspeaker

The invention discloses a super-power loudspeaker. Each T-yoke is formed by tight matching of an upper piece and a lower piece; an upper short-circuit radiating ring and a lower short-circuit radiating ring are matched tightly in each matching position and are placed in a voice coil; a radiator is arranged on each upper piece of each T-yoke; a reinforcing ring is bonded above a position where each lower spring plate is bonded with the voice coil; and a lower dust cap is provided with a spherical surface bulging to the inside of the voice coil, the step wall of the lower dust cap is matched and fixed with the inner wall of the voice coil, and the outer edge is fixed with the upper opening and a paper cone of the voice coil respectively. Experiments prove that a sample of the super-power loudspeaker cannot fail caused by heat radiation and degumming under conditions of extreme power and long-time operation.
Owner:嘉善迪蒙尔电子有限公司

Lens and LED light source device adopting same

The invention is applicable to the technical field of optics, and provides a lens. The lens is provided with an elliptical base, an elliptical upper part and a main body connecting the elliptical baseand the elliptical upper part, wherein the elliptical base is provided with a concave cavity used for accommodating an LED wafer, and the ratio of the short axis to the long axis of the elliptical upper part is 0.1-1.0. The light emitted by the LED wafer is firstly refracted into the lens through the top surface of the concave cavity and then refracted to a preset illumination area through the surfaces of the main body and the elliptical upper part. The stray light around the preset illumination area is greatly reduced, the effective light intensity in the center is correspondingly enhanced,and the requirements of various LED light source devices, especially an infrared emitter tube, for the spot brightness and uniformity are fully met. In addition, according to the LED light source device provided by the embodiment of the invention, an LED support and the bottom of the lens are bounded by adhesive glue, and the area between the side surface of the concave cavity and the side surfaceof the LED wafer is also filled with the adhesive glue, so that the bonding surface between the lens and the LED support is greatly expanded, the firmness of the lens support is also greatly enhanced, and thus the failure rate caused by the lens falling off from the LED support is greatly reduced.
Owner:XI AN RAYSEES TECH CO LTD

Current collector for lithium ion battery, and lithium ion battery

The invention discloses a current collector for a lithium ion battery, and the lithium ion battery comprising the current collector. The existing current collector with a coating layer structure or anoptical foil structure is changed into a grid-like winding structure; the current collector comprises a single-layer or multi-layer grid-like structure formed by conductive metal wires in a winding manner; and metal wires adopted by a positive electrode current collector can be aluminum wires, titanium wires, and titanium aluminum alloy wires while the negative electrode adopts copper wires. Thewinding structure disclosed in the invention has multiple surfaces and can be in contact with an active material, so that the bonding surfaces of the active material and the current collector are enlarged, mutual gluing can be facilitated, relatively less dosage of a binder is adopted, the contact area between the active material and the current collector can be enlarged, and internal resistance is lowered; in addition, by virtue of the winding and uniformly-distributed grid-like structure, the mechanical property of the current collector is improved, the current collector can be more balancedin stress, and the processing difficulty is lowered; compared with a net-shaped structured and a punched hole-shaped current collector, the winding structure can provide higher mechanical property and has a larger contact area with the active material; and by virtue of matched application with titanium wires, the cycle performance of the battery is greatly improved.
Owner:ZHEJIANG NARADA POWER SOURCE CO LTD +1

Process chamber shielding system and method

A removable coating for protecting process chamber components from excess material resulting from operation of a process chamber. The removable coating including a sheet. A bonding surface of the sheet to be releasably bonded to a process chamber component to be protected. A deposition surface of the coating selected to receive and retain the excess material. In an aspect, the coating may further include a deposition layer bonded to a sheet surface in opposition to the bonding surface. The deposition layer providing the deposition surface. In some aspects the deposition surface may be provided of a different material from the process chamber component. In some aspects, and method and system are provided for protecting process chamber components.
Owner:SWISS RANKS PTE LTD
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