323results about How to "Stable internal structure" patented technology

Sutures are used in combination with fibrosing agents to induce or stimulate fibrosis that between the sutures and the host tissues into which the sutures are inserted. Compositions and methods are described for use in lifting tissue, closing wound, and other applications.

The present invention provides an apparatus, method and kit for placing and securing an implant to vertebral bodies of a spine. The apparatus may have an implant engaging base having implant engaging limbs coupled to a handle and an aligning member pivotally coupled to the handle by a spring loaded collar where the aligning member may be rotated and locked into fixed positions. The aligning member may receive a cannula for guiding instruments and tools into the surgical field. A method is presented which includes turning locking screws to frictionally engage rounded screws to secure the implant to the vertebral bodies. Flats on the head of the locking screws may be turned by a screwdriver having corresponding flats dispositioned to align in a coaxial manner to the flats on the heads of the locking screws. A kit is presented including the apparatus, the screws, and the screwdriver.

An organic cotton electronic cigarette includes a liquid storage component and an atomization device. The atomization device includes a hollow spiral tubular electric heater coil and a liquid guiding member passing through the electric heater coil. The liquid guiding member is made from organic cotton free of glass fiber material. The atomization device further includes a smoke guiding tube passing through the liquid storage component for supporting the same and working as a smoke path. The smoke guiding tube includes an external casing and an internal casing one of which is inserted into another one so as to hold the liquid guiding member between the two. The two ends of liquid guiding member extend out of the smoke guiding tube and are tightly pressed against an inner wall of the liquid storage component. This kind of electronic cigarette is safe to human body and has stable internal construction.

The invention discloses an anti-fouling and anti-doodling dope and a preparation method. The dope contains the following ingredients(based on weight portions): 15-20 portions of biradical fluoro-acrylate oligomer, 3-10 portions of biradical silicone acrylate oligomer, 10-40 portions of 6-radical polyurethane acrylate oligomer, 1-30 portions of biradical epoxy acrylate oligomer, 1-10 portions of photoinitiator, 10-25 portions of reactive diluted monomer, 0.5-5 portions of addition agent and 10-25 portions of organic solvent. Paint film made from the anti-fouling and anti-doodling dope is structurally compact, with surface tension reaching 27-33dyne / centimeter and effectively prevents various doodling materials, such as oil pen, waterborne pen, ink jet and pollutant from infiltrating to the dope or the substrate, thus reducing cleaning difficulties; meanwhile, the dope is good in dirt resistance and doodling resistance and long in service life. The dope can be prepared by mixing the ingredients of the dope to be even, so the preparation method is economic and simple.

An electronic cigarette adopting organic cotton includes a liquid storage component and an atomizing device, the atomizing device includes a hollow spiral heating wire, a liquid guiding member inserted in the heating wire, the liquid guiding member is made of non-fiberglass organic cotton materials; the atomizing device further includes a smog conduit inserted in the liquid storage component for supporting the liquid storage component and serving as a channel for the smog, the smog conduit comprises an outer sleeve and an inner sleeve, one inserted into another to position the liquid guiding member therebetween, and the liquid guiding member has its opposite ends respectively to be protruded out of an outer sidewall of the smog conduit and firmly abut against an inner sidewall of the liquid storage component. This kind of electronic cigarettes is harmless to the human body and has stable and reliable inner structure.

The invention relates to a method for manufacturing medium-density fiberboards, and belongs to the technical field of manufacture of fiberboards. The method includes proportionally cutting root-wood and brushwood to obtain 60X30X5mm wood chips; carrying out cleaning, cooking, hot-grinding and drying procedures for the wood chips to obtain fibers; proportionally and sufficiently mixing the fibers with sanding powder and sawdust-shaped edge strip and corner materials to obtain mixtures; and carrying out gluing, paving and hot-pressing procedures for the mixtures to manufacture finished medium-density fiberboard products. The method has the advantages that the manufacturing cost of the medium-density fiberboards is reduced to a certain extent; problems that sanding dust which is generated in existing fiberboard manufacturing procedures and edge strip and corner materials which are generated during blank plate cutting are discarded as rejected materials, environments are polluted, the manufacturing cost is increased and limited forest resources are wasted are solved; and the fiberboards manufactured by the method are stable in internal structure, low in deformation and good in physical and mechanical performance.

The invention discloses a magnetoelectric tachometric transducer and a test device thereof. The magnetoelectric tachometric transducer comprises an injection molding casing and an injection molding body. A coil frame, coils, an epoxy resin filler, a seal ring, a transducer lead, an iron core, an inner half reel, a shrinkable tube and an outer half reel are arranged in the injection molding body. The coils are wound in the middle of the coil frame. The inner half reel and the outer half reel are respectively arranged at two ends of the coil frame. The iron core is T-shaped. A lead core is arranged in the transducer lead. The epoxy resin filler is filled to the other space of the injection molding body. The test device of the magnetoelectric tachometric transducer comprises a test gear, a transducer holder, an air gap regulating slider and a worktable, wherein the test gear and the air gap regulating slider are arranged on the worktable, and the transducer holder is arranged on the worktable through the air gap regulating slider. The magnetoelectric tachometric transducer can be used for various industrial fields with combustible and explosive hazard gas, and is of stable internal structure.

The invention belongs to the field of lithium ion cell and specifically relates to a LiNi0.6-xCo0.2Mn0.2AlxO2-yFy positive electrode material for the lithium ion cell and a preparation method thereof. X is more than 0 and y is less than or equal to 0.05. The positive electrode material is used for overcoming the defect of poor electrochemical performance of the Ni-Co lithium manganate ternary positive electrode material. According to the invention, a minute quantity of aluminum and fluorine are doped, so that the positive electrode material for the lithium ion cell has higher specific discharge capacity and excellent cycle performance; under a room temperature environment, when the voltage scope is 2.7-4.3V and the constant current charge-discharge multiplying power is 0.5C, the specific discharge capacity of the material at the first time can reach 187.9mAh g<-1>, and after circulation for 20 times, the specific discharge capacity still can reach 192.1mAh g1 and the capacity retention ratio reaches up to 102.2%; when the voltage scope is increased to 2.7-4.5V and the constant current charge-discharge multiplying power is 0.5C, the initial specific discharge capacity of the material can reach 225.8mAh g<-1>, and after circulation for 20 times, the specific discharge capacity still can reach 190.2mAh g<-1> and the capacity retention ratio reaches up to 84.2%. The preparation technique of the material is simple and controllable, the product purity is high, the chemical uniformity is high, the crystal quality is high, the product grain is small and the size distribution is uniform.

The invention discloses a waterproofing construction method for a basement of building engineering. The method comprises the following steps: S1, dust, sundries, oil stains and visible water on the surface of a base are cleared to make the surface flat and clean; S2, a control line for coil laying is released on the base, so as to accurately control the laying position and lap width of a coil andprevent dislocation, deflection and the like during coil laying; S3, on the basis of foundation treatment and elastic line positioning, construction of 1:2.5 waterproofing mortar is conducted on internal and external corners, the internal and external corners shall be round corners, and R of the arc of the internal and external corners is larger than or equal to 50. Waterproofing performance of inner reinforced concrete is strengthened by the PV100 waterproofing coil, and the PV100 waterproofing coil can form continuous and permanent full adhesion combination with poured concrete, so that water channeling is effectively prevented; the waterproofing coil is tightly adhered to the structure, cannot be affected by uneven settlement of the base, and construction of the next process can be directly performed without construction of a protective layer.

The invention, relating to the technical field of exterior wall organic heat insulation wall and production thereof, particularly discloses a building exterior wall integral solidified organic heat insulation board and a preparation method thereof. The heat insulation board is prepared by using perlite, ordinary portland cement, slaked lime, heavy calcium, sulpho aluminate, zeolite powder, acrylic acid, and water, and carrying out burdening, dry mix, wet mix, diecast, microwave coagulation, depanning and maintenance. Compared with the prior art, the method has the advantages of simple structure, easy obtainment of raw materials, easy preparation; and the heat insulation board has the advantages of small heat conductivity, low water absorption, stable effect of heat insulation, good flame resistance, short production period, and high efficiency. The invention is suitable for large-scale industrial production.

The invention relates to the field of lithium ion battery materials, and provides an Al / La co-doped high-nickel ternary precursor with a core-shell structure and a preparation method thereof, and a positive electrode material prepared from the precursor. The preparation method mainly comprises the following three steps: step 1, synthesizing an Al-doped high-nickel ternary precursor with rod-like primary particles under the condition of a low pH value; 2, increasing the pH value on the basis of the step 1, growing a La-doped high-nickel ternary precursor shell with needle-shaped primary particles by taking the Al-doped high-nickel ternary precursor as an inner core so as to synthesize an Al / La co-doped high-nickel ternary precursor with a core-shell structure; and 3, mixing the Al / La co-doped high-nickel ternary precursor with the core-shell structure and a lithium salt, and carrying out high-temperature calcination in an oxygen atmosphere to obtain the Al / La co-doped ternary positive electrode material with the core-shell structure. Due to the unique co-doped core-shell structure, the stability of an internal structure is effectively enhanced, the generation of mixed phases such ascation mixing and rock salt structures is inhibited, the breakage of grain boundaries is reduced, the average oxidation state of manganese ions is improved, the Jahn-Teller effect is effectively inhibited, the rapid attenuation of the capacity in a cycle process is reduced, the cycle stability of the material is remarkably improved, and the cycle life of the material is remarkably prolonged. Theproduct synthesized by adopting a coprecipitation method is uniform in component, good in sphericity, good in reproducibility, easy in condition control, low in preparation cost, high in economic value and wide in application prospect.

The invention relates to a high-solid-content quick-drying water-based white primer and a preparation method thereof. The high-solid-content quick-drying water-based white primer is basically prepared from 25-35% of acrylic emulsion, 15-25% of white slurry, 10-18% of calcium carbonate, 5-10% of kaolin, 5-10% of talcum powder, 2-5% of assistant, 2-6% of film-forming agent, 3-5% of thickening rheologic agent and 15-25% of water. The white primer has the characteristics of excellent sanding property, excellent filling property and high drying rate, does not adhere to abrasive paper after drying 1 hour in summer, and is economical and practical; the white primer can effectively seal the wood seams in a medium-titer plate base, and stabilize the internal structure of the base material; after construction, the deformation rate of the base is low, and the fibers do not expand basically; and thus, the white primer can be used for solid color painting of a medium-titer plate base wood door, and can also be used for painting a sealed splint base, thereby having high market application value.

The invention discloses a vacuum thermal insulation pipe casing which is at least composed of a dimidiate casing body of which the cross section is in hemicycle. The casing body is formed by sealing a stainless steel inner layer and a stainless steel outer layer and is vacuumed internally; a reticulate body composed of reinforcement fillets is arranged in the casing body; the reticulate body is at least formed by staggered arrangement of a group of transversely arranged reinforcement fillets and at least one group of vertically arranged reinforcement fillets; the side surface or the facade of the stainless steel outer layer is provided with vacuumizing points; the upper end and the lower end of the reinforcement fillet forming the reticulate body respectively contact with the inner walls of the upper stainless steel inner layer and the lower stainless steel outer layer via an insulating mat; the stainless steel outer layer is made of skidproof stainless steel plates; and the outer surface of the inner layer is provided with a plurality of toothed crossers contacting with the cased pipelines. The invention has the characteristics of simple structure, convenient installation and use, beautiful appearance and firm inner structure, can prevent stepping and is skidproof.

The invention relates to a composite black porcelain solar heat collecting plate and a production method thereof. The composite black porcelain solar heat collecting plate is solid and consists of a base layer of ordinary ceramic layer 1 and a surface layer of black porcelain heat collecting layer 2, and the two layers are fired into one. The method of the invention comprises the steps of preparing common ceramic powder and black porcelain powder respectively, secondary distribution, drying and firing. The composite black porcelain solar heat collecting plate of the present invention has a simpler structure and is easier to install. The common ceramic layer 1 of the base layer and the black porcelain heat collecting layer 2 of the surface layer are fired into one body, and the internal structure is firm. Combined, it is easy to achieve integration with the building. The method of the present invention can adopt the ordinary ceramic brick roller kiln firing process, can utilize existing equipment to carry out continuous production, is easy to control, and has low cost and large output, can meet large-scale needs, and is low-cost and large-scale development and utilization. Solar energy creates even more favorable conditions.

The invention provides a power chip type LED light source for an LCD backlight module, which is formed by a plurality of grid-shaped semiconductors, and at least two LED semiconductors are arranged in each grid. The LED light source comprises a printed circuit board (PCB), an LED chip arranged at the upper side of the PCB and a light-emitting lens arranged at the light-emitting surface of the LED chip; a radiator is arranged under the PCB, PCB leads are distributed around the radiator, and the radiator is assembled with electrical connection structure and a corresponding control circuit; and the radiator and the PCB are fixed into a whole by a mechanical fastening part and the same extended light source. The power chip type LED light source has stable and shockproof structure, good color rendition and heat dissipation effect, no incomplete shadow, electricity conservation and long service life, and can remarkably improve the color expressive force of liquid crystal display.

The invention discloses a locker capable of automatically opening and closing. The locker comprises a body (1), wherein a first carriage body (11) and a second carriage body (12) are arranged in the body (1); a U-shaped frame (2) which moves inside and outside is arranged in the first carriage body (11); an upper bump (21) is arranged at the upper part of the U-shaped frame (2); a guiding rod (211) transversely penetrates through the inner part of the upper bump (21) and is arranged in an inside and outside extending manner; a lower bump (22) is arranged at the lower part of the U-shaped frame (2); a threaded rod (221) transversely penetrates through the inner part of the lower bump (22) and is arranged in the inside and outside extending manner; a power structure is rotationally connected to one side, in an extending direction, of the threaded rod (221); the other side of the threaded rod (221) is rotationally connected with the inner wall of the body (1); a first empty carriage (23) and a first hydraulic driving device (25) are arranged in the U-shaped frame (2). According to the locker disclosed by the invention, articles are conveniently taken, an internal structure is stable, and unnecessary collision is avoided.

The invention provides a preparation method of a single chiral metal-organic framework material with chiral separation and photoinduction functions, belonging to the technical field of chemical industry. A single chiral ligand (S)-H4L: (S)-3,3'-ditertbutyl-5,5'-bis(3,5-dicarboxyphenyl)-6,6'-dimethyl-2,2'-dihydroxy-1,1'-biphenyl is synthesized and then mixed with metal salts, the mixture is dissolved by N,N-dimethylformamide and water, acetate is added to react, after reaction, the product is cooled to a room temperature, and then the cooled product is washed by ether for several times, and dried in the air to obtain the finish product. The method is relatively simple and easy to operate, and ideal in separation effects for mandelic ester compounds, and has functions of inducing asymmetric cyclization of tropolone ether.

The invention discloses a novel high-voltage lithium cobalt oxide material and a preparation method thereof, and belongs to the field of positive electrode materials of lithium-ion batteries. The material comprises a core-shell structure, an inner core is made of lithium cobalt oxide particles doped with nickel and manganese in a gradient manner, and a shell is an in-situ produced spinel LiNi0.5Mn1.5O4 wrapping layer doped with rare earth. The invention also relates to a preparation method of the material, the lithium cobalt oxide material with gradient doping of the inner core and surface in-situ wrapping can be obtained by once sintering, the process is simple, the operation process is controllable, and the prepared lithium cobalt oxide material has better structural stability, higher discharging capacity and excellent circulation performance in a high voltage.

The invention discloses a wrapped bearing bush processing method. A big steel plate is cut into multiple small blank plates, anti-rust oil on the blank plates is removed by means of a JQ-107 cleaning agent through ultrasonic cleaning, the cleaned blank plates are dried and then polished with sand paper, unleaded copper powder is spread on the polished blank plates, then the blank plates are placed in a sintering furnace to be sintered at 920-940 DEG C, and the rotating speed of a mesh belt in the furnace is 350-400 mm / min; the blank plates after primary sintering are rolled by 0.05-0.1 mm, and the leveled blank plates are placed in the furnace again for secondary sintering at 940-950 DEG C for 20-40 min, and the rotating speed of the mesh belt in the furnace is 350-400 mm / min; secondary rolling is conducted on the blank plates after secondary sintering by 0.02-0.04 mm, the blank plates after secondary rolling are punched, and the punched blank plates are rolled into the shape of a bearing bush. The wrapped bearing bush produced with the method is stable in structure, and the service life of the wrapped bearing bush is prolonged greatly.

The invention belongs to the lithium ion battery field and relates to a lithium ion battery anode material and a manufacturing method thereof. The invention especially relates to a high-potential lithium ion battery NCM ternary anode material and the manufacturing method thereof, which is used for overcoming a defect of poor electrochemical cycle performance of existing lithium ion battery anode material layered high-nickel lithium-nickel-cobalt manganate NCM811 and derivatives. A molecular expression of the anode material is Li (Ni0. 8Co0. 1Mn0. 1) 1-x-ySixO2 @ (Li2SiO3) y, wherein x+y is greater than 0 and is less than or equal to 0.2, and y is much less than x. Li2SiO3 coating modification formed by combining high-valence state Si < 4 + > gradient doping for inhibiting generation of micro-cracks in a circulation process and a surface is adopted. The lithium ion battery anode material has a relatively high specific discharge capacity and excellent cycling stability and a high-rate charge-discharge cycling requirement can be satisfied. Bulk phase doping is performed by adopting a traditional solid phase method, operation is simple, industrial production is easy, a prepared productis high in purity, high in chemical uniformity, high in crystallization quality, fine in product particle, and uniform in distribution, and electrochemical performance is excellent and manufacturingcost is low.

The invention belongs to the field of lithium ion batteries, and provides a lithium ion battery cathode material Li(Ni0.8Co0.1Mn0.1)1-xAlxO2-yFy@LiAlO2 and a preparation method thereof, wherein x is more than 0, and y is less than or equal to 0.05, and the defects of LiNi0.8Mn0.1Co0.1O2 has poor electrochemical cycle performance and poor safety performance are overcome. Aluminum and fluorine are co-doped in a matrix material, and the trivalent aluminum element not only can stabilize the structure of the material, but also can prevent Ni<2+> from substituting Li<+>, so that the mixing of lithium / nickel cations is reduced, and fluorine can inhibit side reaction between the material and electrolyte; at the same time, the surface of a parent material Li(Ni0.8Co0.1Mn0.1)1-xAlxO2-yFy is coated with an extremely thin lithium fast ion conductor lithium metaaluminate which can enhance the lithium ion transport and reduce the surface alkalinity; the lithium ion battery cathode material can havehigher discharge specific capacity while improving cycling stability, and has a more stable structure compared with LiNi0.8Co0.1Mn0.1O2, the safety and processing performance of the material are improved, and especially at large magnification and high voltage, the safety performance is greatly improved.

The invention discloses a loading and unloading device, a loading and unloading method and a hot bending machine. The loading and unloading device comprises a rack and a transferring mechanism; and the rack is provided with a thermal insulation channel; the transferring mechanism is used for moving a die from an outlet of the hot bending machine to an inlet of the hot bending machine along the thermal insulation channel to enable the die to always keep at a first temperature higher than a room temperature in the movement, die opening and die closing process. The loading and unloading device provided by the invention can enable the die to always keep at a certain temperature higher than the room temperature, the die does not need to be cooled with glass together, so that the energy consumption is reduced, and the working efficiency is improved.

The invention discloses non-fried highland barley instant noodles and belongs to the technical field of food processing. The non-fried highland barley instant noodles comprise 60 to 85 portions of highland barley powder. The highland barley powder is modified by complex enzymes of glucose oxidase, xylanase, protease and phytase. The invention also discloses a preparation method of the non-fried highland barley instant noodles. The preparation method comprises flour mixing, dough kneading, rolling, aging, molding, cooking, drying and packaging. The non-fried highland barley instant noodles have the advantages of good processing performances, good plasticity, good taste and comprehensive nutrition.

The invention belongs to the technical field of lithium ion battery materials, and discloses a zirconium-magnesium doping and zirconium coating double-modified nickel-cobalt-manganese ternary precursor and a preparation method thereof. According to the preparation method, Zr and Mg are introduced into the ternary precursor for doping, Zr is introduced for coating at the later stage of reaction, a complexing control crystallization coprecipitation method is adopted, and the zirconium-magnesium doping and zirconium coating dual-modified nickel-cobalt-manganese ternary precursor is prepared by controlling parameters such as the pH value, the ammonia concentration and the reaction temperature of a reaction system. According to the invention, Zr, Mg doping and Zr coating are introduced into the ternary precursor, the positive electrode material inheriting the performance is stable in cycle performance, good in capacity retention rate and excellent in rate performance, meanwhile, the single crystal material has the characteristics of compact internal structure and no crack, the volume effect and crack generation can be effectively inhibited in the fast charging process, and the development requirements of the electric vehicle industry can be met.

The invention provides a high-capacity long-cycle single-crystal ternary positive electrode material and a preparation method thereof. The chemical formula of the single crystal ternary positive electrode material is LiNi < x > Co < y > Mn < 1-x-y > MaO < 2 >, wherein x is more than or equal to 0.5 and less than or equal to 1, y is more than 0 and less than or equal to 0.5, x + y is more than 0 and less than 1, a is more than 0 and less than or equal to 0.005, and M is a cation modified element which comprises a Ti element and can also comprise one or more of Al, Mg, Zr, Nb and Y elements. According to the preparation method of the high-capacity long-cycle single-crystal ternary positive electrode material provided by the invention, the material of which the modified elements have concentration gradients which are progressively increased from the core to the surface can be prepared. Under a high charging cut-off voltage, the modified elements are preferentially oxidized compared with transition metal elements, so that the internal structures of the particles are stabilized, the content of the core modified elements is low, the specific capacity of the material is not reduced, meanwhile, the content of the modified elements on the surface of the material is relatively high, the particle surface of the material is relatively stable, and the cycle performance of the material is integrally improved.

The invention discloses a desk computer display fixing bracket, and relates to the technical field of display fixing. The desk computer display fixing bracket comprises a movable frame, two containingplates, a display and a bottom plate; buffering pads are fixedly connected to the tops of the containing plates, the tops of the buffering pads make contact with the bottom of the display, and threaded rods are rotatably connected to the two sides of an inner cavity of the movable frame through rotating parts. According to the desk computer display fixing bracket, the display can be manually fixed on the condition that an auxiliary tool is not needed, displays with different widths and heights can be fixed, therefore, the using range of the fixing bracket is very wide, use is convenient for operating personnel to a great extent, the display is well fixed and supported, and normal work of the display is guaranteed; and meanwhile, the internal structure of the fixing bracket is very stable,and the very good buffering and damping effects on the display are achieved while the display is fixed.

The invention relates to the technical field of a lithium battery anode material, in particular to an ion doping and surface cladding jointly-modified lithium ion battery anode material and a preparation method thereof. The ion doping and the surface cladding are collectively used for modifying a lithium ion battery anode active material - an NCM material, so that the modification of the interiorand the surface of the NCM material can be realized, the internal structure of the material is stabilized, the lithium ion dispersion capacity at an interface of the material and the electrolyte is also improved, a protection effect for the material can be realized, the side reaction of the material and electrolyte can be effectively reduced in the charging and discharging process, and the cyclingstability and rate capacity of the lithium ion battery can be improved.

The invention discloses a multi-laser high-precision 3D printer and a printing method thereof. The printer comprises a power distributing module, a sintering platform and a laser sintering module. Thelaser sintering module comprises a preheating scanning module, a sintering scanning module and a trimming scanning module, wherein the preheating scanning module comprises a preheating laser for emitting a preheating laser beam and a preheating conducting assembly for conducting the preheating laser beam to the sintering platform, the sintering scanning module comprises a sintering laser for emitting a sintering laser beam and a sintering conducting assembly for conducting the sintering laser beam to the sintering platform, the trimming scanning module comprises a fine trimming laser for emitting a fine trimming laser beam and conducting the fine trimming laser beam to the sintering platform, and the temperature of the preheating laser beam is lower than that of the sintering laser beam.By sintering and processing powder by laser beams in a combined manner, the quality and precision of a formed part are improved from multiple aspects.