1855results about How to "Flat surface" patented technology

Two-component systems are described which are suitable for underlining, adhesive bonding of the crimped fold and sealing of auto body sections, particularly for crimped fold sealing of add-on vehicle parts. The two-component systems attain the requisite grip strength for mounting the add-on parts on the body as well as the requisite strength and dimensional stability for the production process up to and with the CIP passage, within the predetermined cycle time, on the basis of cross-linking of the sealant composition twice. In one embodiment, the surface of the two-component system is pre-cross-linked by a UV-induced reaction and by the cross-linking of the two-component system to the extent of portability. In addition, two-component systems are described which cross-link intentionally only partially up to a consistency that permits a rugged course of the process through cleaning baths and which harden completely only by means of a further hardening process, for instance in the CIP forced circulation oven.

A microphone element having a diaphragm and a fixed electrode disposed opposite to each other on a silicon board having a central opening portion is mounted and fixed onto a base board having a sound hole. A perimeter-shaped side board and a cover board are mounted and fixed onto the board, thereby forming a back cavity on an upper side of the microphone element. The diaphragm and the fixed electrode are conducted to conductive layers of the cover board through conductive layers of the base board, and a conductive layer and a coiled spring in the side board respectively, and mounting on a surface of a printed board of an external apparatus can be carried out in a conductive layer on an upper surface thereof.

A ceramic substrate comprising a metallic layer on its surface, wherein said metallic layer includes: a silver layer containing silver; a gold layer containing gold; and a nickel layer containing nickel, in this order from an outermost layer of said metallic layer.

The invention provides a reinforced aerogel composite material and a preparation method thereof. The reinforced aerogel composite material comprises single aerogel or two aerogels or more than two aerogels, the surfaces or block interfaces of the block aerogel are coated or bound into a whole by virtue of fiber mesh fabric-reinforced waterborne adhesive. The preparation method of the reinforced aerogel composite material comprises the following steps: (1) carrying out hydrophobic modification treatment on the surfaces; (2) carrying out hydrophilic/hydrophobic modification treatment on the surfaces; and (3) preparing the reinforced aerogel composite material: uniformly coating the surface of the block aerogel or the interface of two aerogels with waterborne adhesive and fiber mesh fabric and curing to obtain the reinforced aerogel composite material. The reinforced aerogel composite material provided by the invention has the characteristics of excellent thermal-insulation property, heat preservation property, sound insulation property, fireproof property, explosion resistance, shock absorption, energy absorption, light weight, better mechanical properties, the preparation process of the material is simple and practical and the material has wide range of applications.

The improved process for preparing high strength porous microsphere active carbon includes the following steps: oxidizing thermosetting resin ball at 60-400 deg.c in oxygen containing atmosphere or pre-treating thermosetting resin ball at 60-300 deg.c in oxidizing acid, SO2 or SO3; carbonizing at 600-1200 deg.c in helium, nitrogen or their mixture atmosphere; and activating at 600-1200 deg.c in activating water vapor atmosphere to obtain high strength porous microsphere active carbon with grain size of 10 micron to 2 mm, BET specific surface area of 500-4000 sq m/g, and grain strength of 50-200 MPa. The process is simple, low in cost and high in yield, and the prepared microsphere active carbon has high strength and high purity and is one excellent medical active adsorption material.

The invention discloses an arc plasma torch preparing nanometer charcoal fibrous material method, which comprises the following steps: placing untreated leavings of liquefying coal directly in direct current arc plasma torch to carry on heat-treatment; using nitrogen for arc working gas under atmosphere pressure; getting nanometer charcoal fibrous material after 120-175 seconds, wherein there is no need to add in any activators in preparing process. The method is characterized by the following: the craft route is simple; the raw material is the waste of coal hydrogenant liquefaction craft; it's a good way to use coal liquification leavings to prepare high-added value, functional carbon material; the nanometer charcoal fibrous material can be used for accelerating agent, catalyst carrier, lithium ion secondary cell anode material, double-layer capacitor electrode, highly effective active solid, release agent and construction reinforced materials.

A method for fabricating a Thin Film Bulk Acoustic Wave Resonator (FBAR). The method comprises the steps of: (A) forming a sacrificial layer comprising one of a metal and a polymer over a selected portion of a substrate; (B) forming a protective layer on the sacrificial layer and on selected portions of the substrate; (C) forming a bottom electrode layer on a selected portion of the protective layer; (D) forming a piezoelectric layer on a selected portion of the bottom electrode layer and on a selected portion of the protective layer; (E) forming a top electrode on a selected portion of the piezoelectric layer; and (F) removing the sacrificial layer to form an air gap. The use of a metal or a polymer material to form sacrificial layers has several advantages over the use of zinc-oxide (ZnO) to form such layers. In accordance with a further aspect of the invention, an FBAR is provided which includes a glass substrate. The use of glass to form substrates offers several advantages over the use of other materials to form substrates. By example, most types of glass are less expensive than semiconductor materials, and exhibit low permittivity characteristics, and low parasitic capacitances. In addition, most glass materials are substantially loss free when being used in microwave frequency applications.

The invention discloses a glass fiber reinforced nylon colored insulated strip used for an aluminum alloy door and window. The compositions by weight portion of the glass fiber reinforced nylon colored insulated strip are: 100 portions of nylon resin, 5 to 50 portions of glass fibers, 0 to 50 portions of inorganic filler, 5 to 25 portions of toughening agent, 0.3 to 5 portions of coupling agent, 0.3 to 5 portions of dispersing lubricant, 0.2 to 5 portions of antioxidant, 0.1 to 1 portion of light stabilizer, 0.1 to 1 portion of heat stabilizer and 2 to 10 portions of colored masterbatch. The invention also discloses a method for preparing the colored insulated strip. The glass fiber reinforced nylon colored insulated strip solves the problems that the masterbatch and the filler are difficult to disperse and nylon 66 is easy to change color during the processing procedure; the insulated strip products have various colors, superior performance and beautiful appearance; and the glass fiber reinforced nylon colored insulated strip realizes perfect matching with the window color, can achieve the beautility effect, meets and enlarges the demand of clients and the market, and is favorable for promotion, use and development of the glass fiber reinforced nylon 66 insulated strip.

The invention discloses a room-temperature cured epoxy resin flexible sealant and a preparation method thereof. The room-temperature cured epoxy resin flexible sealant comprises a component A and a component B, wherein, the component A comprises 40-80 weight portions of epoxy resin, 10-40 weight portions of diluent, 10-30 weight portions of plasticizer, 0.5-5.0 weight portions of silane coupling agent, 0.05-2.0 weight portions of antifoaming agent, and 0.2-2.0 weight portions of anti-oxidant, the component B comprises 10-50 weight portions of aliphatic short-chain amine curing agent and 30-90 weight portions of aliphatic long-chain amine curing agent, and the weight ratio of the component A to the component B is (0.8-1.0):1.0. The invention further discloses a preparation method of the epoxy resin flexible sealant. The epoxy resin flexible sealant disclosed herein has moderate mixing viscosity and good levelability, and can be rapidly cured at room temperature. The cured substance has good light transmittance and flexibility, and can be applied for surface coating of LED strip light, LED path light, LED mold strip and other technology products.

A rupture disc for use in a pressure relief system includes a dome having a concave and a convex side and a circumferential flange associated therewith. At least one control score is formed or otherwise produced in the dome at a radial position between an apex of the dome and an outer circumference of the dome. At least one of a depth, a width, a length and the radial portion of the at least one control score is selectively controlled so that the depth, width, length, and/or radial position of the at least one control score controls the pressure at which the dome will start to collapse.

The invention discloses a method for preparing a continuous fiber multiaxial fabric reinforced thermoplastic composite material. The prepared continuous fiber multiaxial reinforced thermoplastic preconsolidating material is taken as a base material of the composite board, and combined with other functional materials for forming a novel material system which can be used for producing multiaxial fabric reinforced thermoplastic composite materials for different industries and solving the technical bottleneck that different materials have different composite bonding difficulties. According to the invention, the prepared composite material is constructed by continuous fiber multiaxial direaction; materials have the characteristics of resilience and uniform stressing on different directions. In addition, light sandwich panel formed by a honeycomb core material provides higher impact strength of materials, which is suitable for preparing structural parts and interior decorative parts in the field of railway car containers of navigation and aviation. The product of light-weight flame retardant can be recovered and used, and is more suitable for industrialization scale production of the warp knitting industry organization.

The invention provides chemical polishing liquid, comprising sulfuric acid, hydrogen peroxide, acetic acid, an auxiliary oxidant, a brightening agent and an adjusting agent, and the PH of the polishing liquid is 1-3. The polishing liquid has simple components and easy control, the obtained chemical polishing surface has high brightness and smooth surface, and can achieve the mirror polishing effect. The polishing liquid can be widely applied in polishing of the surface of copper-zinc alloy.

An anti-electrostatic rubber plate (desk pad and floor mattress) and its production are disclosed. The anti-electrostatic rubber plate consists of anti-electrostatic layer and conducting layer. It is prepared by preparing anti-electrostatic layer, preparing conducting layer film and vulcanizing to obtain final product.

A coating includes a first layer of a ceramic alloy and a second layer disposed on the first layer and including carbon. The coating has a hardness of from 10 to 20 GPa and a coefficient of friction of less than or equal to 0.12. A method of coating a substrate includes cleaning the substrate, forming the first layer on the substrate, and depositing the second layer onto the first layer to thereby coat the substrate.

A hybrid porous structure may include a base template and an ionic polymer coating layer within the base template. The structural framework of the base template itself is non-porous. The base template fills the gaps among a plurality of imaginary spherical bodies stacked in three-dimensions as an imaginary stack. The ionic polymer coating layer is laminated on an inner surface of the base template inside the imaginary spherical bodies. The imaginary spherical bodies may have a pore in the center which is not occupied by the ionic polymer coating layer. The hybrid porous structure may include a plurality of necks, which are openings formed in a contact part where adjacent imaginary spherical bodies contact each other. The necks may be interconnected to the pores located in the center part of the imaginary spherical bodies.

The invention provides a external thermal-insulated system material of polyurethane rigid foam, which is characterized in that: said system material comprises polyurethane dampproof bottom paint, polyurethane rigid foam material, surface agent, anti-break polymer cement sand pulp containing glass fiber grid cloth and a paint decorated surface. The invention can reach compatibility and balance between each layer of external thermal-insulated material to be an organic integration. The layers can flexibly release distortion stress to effectively reduce the generation of seams on said wall, and flatten the surface of polyurethane rigid foam, without concave-convex surface. And the layers have strong adhesive force, to avoid departure between them.

A raschel blanket of modyhr-cotton is prepared form 35-50 wt.% of modyhr, 30-40 wt.% of cotton and 15-30 wt.% of polyester. Its manufacturing process includes warping polyester filament, warping wool yarn blended by modyhr and cotton, weaving for fabric, splitting and opening fine hair, inspecting and sending inspected material to warehouse of semi-finished product.

The invention relates to a preparation method of a blocky porous carbon block with high specific surface area, which comprises the following steps: using saccharides and phenols as reaction monomers and adding inorganic acid/organic acid/sulphate as the catalyst to form blocky carbon by a hydrothermal carbonization method, and then carbonizing immediately in an inert atmosphere to obtain the porous carbon material with high specific surface area, wherein the inside of the material has abundant micropores and mesopores, and the BET can be up to 700m<2>/g. The method is mainly characterized in that the preparation process adopts the hydrothermal carbonization method requiring moderate conditions, water is in a high-pressure and high-temperature state in the hydrothermal process, the solubility of the monomers is raised with the increase of the temperature in the heating process, the reaction monomers are polymerized into the stable blocky carbon material under the action of the catalystand the stable blocky carbon material are immediately carbonized into the blocky porous carbon material at high temperature at the inert atmosphere. The material can be furtheractivated to increase the specific surface area and the pore volume, thereby having broad application prospects in the aspects of adsorption, electrode materials and catalyst carriers.

The invention discloses a continuously-produced full-degradable starch-based plastic alloy and a preparation method thereof. The starch-based plastic alloy contains the following components in parts by weight: 40-90 parts of starch, 5-60 parts of poly(butylene succinate), 5-60 parts of polylactic acid, 10-40 parts of plasticizer, 0.1-10 parts of compatibilizer and 1-10 parts of processing acid. The preparation method comprises the steps of mixing starch, plasticizer and part of processing aid, and extruding to obtain thermoplastic starch particles; then, mixing the thermoplastic starch particles with poly(butylene succinate), polylactic acid, compatibilizer and the residual processing aid, and extruding to obtain the starch-based plastic alloy. The starch-based plastic alloy disclosed by the invention is favorable in hydrophobicity and strength, good in component compatibility, favorable in thermoplastic processability, capable of realizing continuous production and processing as well as simple and feasible in technical process.

The invention relates to a glass steel radar cover single element and a forming method thereof. The radar cover single element is a spherical body, the periphery of which is provided with a sewing structure, wherein the spherical body is formed by assembling the inner skin and the outer skin of the glass steel with a foam core layer and the foam core layer is formed by solidifying injected polyurenthane foam glue material. The forming method comprises the following steps of: presetting a fundamental mould, and copying the female mould and the male mould of the glass steel with the same curvature based on the fundamental mould; respectively manufacturing the inner skin and the outer skin of the radar cover single element on the inner surfaces of the female mould and the male mould of the glass steel; and merging the moulds, and forming an inner cavity between the inner skin and the outer skin. The invention is characterized in that the inner skin is provided with a plurality of through holes which enter into the inner cavity; and the inner cavity is filled with polyurenthane foam glue material from the outside to the inside by the through holes and is solidified to be a foam core layer. The method has simple operation, effectively reduces the use waste of polyurenthane foam, has low cost, guarantees the consilient thickness of the inner skin and the outer skin, and can assemble the radar cover with good safety, reliability and wave permeability.

An alternative method of data communications using orthogonal time frequency shifting (OTFS) wireless waveforms configured so as to transmit data in a manner that is relatively insensitive to communications channel distortions and frequency shifts. In contrast to prior methods taught by applicant, the present disclosure teaches an alternative modulation scheme that maps data symbols intended for data transmission onto a symplectic-like 2D Fourier transform which operates on a form of the original data symbols. This 2D Fourier transform in turn is passed through a filter bank of narrow band filters, and the output in turn used to modulate transmitted waveforms according to various time slices until the entire 2D Fourier transform has been transmitted. At the receiver, and inverse of this process can be used to both characterize the data channel and correct the received signals for channel distortions, thus receiving a clear form of the original data symbols.

The invention discloses a method for preparing nano composite material by supercritical fluid electroforming, which comprises the following steps of: (1) adding metal salt solution, nano granules and composite additive into a reactor of an electroforming device, stirring uniformly, introducing carbon dioxide gas, and stirring at the temperature of between 35 and 50 DEG C under the pressure of 8 to 20MPa to generate supercritical fluid electroforming solution containing the nano granules; (2) setting pulse interval at 1 to 5 microseconds, setting the pulse width at 10 to 30 microseconds, setting the current density at 1 to 3A/dm<2>, switching on a direct-current power supply, and making the metal ions and the nano granules in the metal salt solution deposited on a cathode template togetherto obtain a nano composite electroforming layer; and (3) after the deposition is completed, obtaining the nano composite material by corresponding treatment. The method can electroform the nano composite material electroforming layer with uniform nano granule dispersion, flat surface, compact tissue, fine crystal grain and excellent performance.

A method for synchronous powder-feeding space laser cladding and three-dimensional forming includes: dividing a three-dimensional solid into a plurality of forming units according to a form simplification and nozzle cladding scanning accessibility principle, and dividing each forming unit into a plurality of layers; employing a single-beam gas-carried power-feeding mode in a hollow annular laser; controlling a mechanical arm (7) to drive an in-laser powder-feeding nozzle (1) to move and scan along a predetermined trajectory in a filling area and a boundary area of the layer; and sequentially conducting cladding and stacking formation of the layer for the entire unit. A device includes an inside-laser powder-feeding nozzle (1), a laser generator (6), a mechanical arm (7), a control module (4), a transmission optical fiber (5), a gas-carried powder feeder (3) and a gas source (2).

The invention provides a pulp forming mold integrally turning automat and a production process of the automat. The automat comprises a pulp box, a shifter, a receiving frame, a hot-pressing upper mold, a forming mold device and racks, wherein the pulp box is arranged on a lower rack and the forming mold device is arranged on an upper rack; the shifter is arranged on a sliding guide of the lower rack, the hot-pressing upper mold is arranged on the upper rack next to the forming mold device; and the receiving frame is connected with one end of the shifter. The automat further comprises a feed shifter mold, a first hot-pressing lower mold and a second hot-pressing lower mold, wherein the feed shifter mold is arranged on the upper frame and in parallel to the hot-pressing upper mold side far from the forming mold device, the second hot-pressing lower mold is arranged in the shifter end near the receiving frame, and is parallel to the first hot-pressing lower mold along the moving direction; a waiting position is arranged between the feed shifter mold and the forming mold device; and the forming mold device is further provided with a pulp turning and sucking mechanism and an extruding mold. The automat of the invention can realize two production processes to meet requirements of various production draft angles of different products, so as to satisfy customer demands.

The invention provides a barium titanate/polyvinylidene fluoride composite dielectric film and a preparation method thereof. The film comprises barium titanate and polyvinylidene fluoride with the weight ratio of 1.5-5.0:1, and the thickness of the film is less than 50 mu m. In the frequency range of 100 Hz-1 MHz, the relative dielectric constant of the film can reach more than 70, and the dielectric loss is lower than 5*10<-2>. By compounding BaTiO3 ceramic and PVDF polymer, the dielectric film material with high dielectric constant and low dielectric loss is prepared. According to the invention, the barium titanate/polyvinylidene fluoride composite dielectric film with uniform distribution of ceramic particles, controllable thickness, high dielectric constant and low dielectric loss is prepared by preparing barium titanate ceramic powder through solid phase reaction or chemical coprecipitation and then using high temperature drying gel method or solvent induced phase separation gel method. The dielectric film is especially suitable for capacitor, ferroelectric memory, and other electronic devices.

A composite filter media having excellent dust-releasing properties provided with a first layer of non-woven synthetic fibers having one outer surface hot calendered to increase smoothness and carrying a coating of a hydrophobic material which lowers surface tension and at least a second layer of non-woven synthetic fibers laminated to the downstream side of said first layer. A backing layer may be included to provide additional support to the first and second layer if desired. The second layer may include an electrostatic charge to increase filter efficiency at a reduced pressure drop across the composite media.

The invention discloses a functional PVC (polyvinyl chloride) paste. The functional PVC paste comprises the following components: PVC paste resin, PVC doped resin, a plasticizing agent, a filling agent, a heat stabilizer, a light stabilizer, an antioxidant, a mildew-proof antibacterial agent, a gas-phase silicon dioxide and the like. A preparation method of the functional PVC paste comprises the following steps of: (1) stirring: firstly mixing and stirring a part of the plasticizing agent and a liquid component uniformly, then adding a solid component, stirring uniformly, finally adding coloring stock and the remaining plasticizing agent, and stirring uniformly, so as to obtain plasticized paste; (2) grinding: grinding the plasticized paste on a three-roll grinding machine; and (3) defoaming and ageing. The paste has the advantages that the viscosity stability is good; and the paste can remain low viscosity under the action of the shearing force of a scraper in the process of producing PVC coated fabric, so that the normal production of the PVC coated fabric is guaranteed, and the surface of the prepared PVC coated fabric is smooth without the phenomena of pin holes and the like.

The invention relates to a novel laser spot welding method, in particular relates to a laser pulse spot welding method for a metal sheet, aiming at solving the problems that in the prior art, the burning loss of the material is high, air holes, cracks and collapse are easy to generate in the laser spot welding process, and particularly the reflectivity of the aluminum alloy material to laser is high so that the stability in the spot welding process is poor. The laser pulse spot welding method for a metal sheet comprises the following specific steps: (1) preprocessing a workpiece to be welded, (2) fixing the workpiece to be welded, and (3) welding by adopting the laser pulse spot welding method. The laser pulse spot welding method for a metal sheet has the advantages of enhancing the welding efficiency, improving the welding spot quality, ensuring good uniformity of the sizes of the welding spots and realizing the spot welding of a plate of moderate thickness by a small-power laser. The laser pulse spot welding method for a metal sheet is mainly used for welding metal materials and particularly used for welding the metal sheet.

The invention relates to a high-gloss and low-odor reinforced nylon composite material and the preparation method thereof. The composite material is characterized in that the composite material contains, by weight percentage, PA66 resin, PA6 resin, glass fiber, inorganic minerals, micro-beads, compatibilizer, antioxidant, lubricant, etc. The preparation method comprises the following steps: mixing the above materials in a high-speed mixer; discharging, and extruding and granulating the mixed material in a screw extruder. Compared with common fiber glass reinforced PA and mineral reinforced PA, the PA composite material prepared by the method has the advantages of high gloss, high strength, low odor, etc., and can be widely used for exterior trimming parts such as electric tool housing and motor housing and for interior parts.

The invention provides a health-care quilt which comprises at least a packing layer. The packing layer comprises a surface fabric and a filling material, wherein the filling material contains fragrant cattail wools. The quilt of the invention is soft and comfortable, has heat retention property, comfortableness and air permeability and has the functions of health protection and moist and insect resistance. The fragrant cattail wools are added in the filling material so the health-care quilt has smooth surface, is light, soft and comfortable, and has heat retention property, comfortableness and air permeability. The health-care quilt further has moist and insect resistance and the functions of health protection such as moistening lung, dispelling fire, resisting bacterial, diminishing inflammation, improving eyesight, calming the nerves, regulating the flow of vital energy, decreasing fat, tonifying spleen, nourishing the life, and lengthening the life. Other Chinese medicinal crops which are conducive to sleep are added in the quilt of the invention so the health protection function of the quilt is further strengthened, the sleeping quality of the user can be improved and the physical fitness of the user can also be strengthened.