51results about How to "Reduce the attachment area" patented technology

A multifunction oscillatory actuator which performs acoustic reproduction by an acoustic reproduction section includes a diaphragm having a voice coil attached thereto and performs the occurrence of somesthetic oscillation by a magnetic circuit section having a magnet attached thereto, and in which the acoustic reproduction section and the magnetic circuit section are attached to a housing having a cylindrical shape, such that the magnetic circuit section is supported on an inner wall of the housing by a frame-shaped suspension.

The invention relates to an anti-pollution coating composition and preparation thereof and application to low surface energy antifouling paint. The coating composition comprises an organic polyorganosiloxane polymer. According to a synthetic formula, the anti-pollution coating composition comprises, by weight parts, 100 parts of octamethylcyclotetrasiloxane, 0.05-0.5 part of basic catalyst, 0.5-3 parts of accelerant, 5-100 parts of silane coupling agent, 0.5-3 parts of end capping agent, 0-0.5 part of dehydrating agent and 15-25 parts of butyl acetate, wherein the dosage of organic acid or acid anhydride is 0-200% the molar weight of the silane coupling agent. The anti-pollution coating composition comprises, by weight percentage, 10-70% of organic polyorganosiloxane polymer, 0.5-20% of pigment, 0.5-20% of filler and 5-40% of solvent. The anti-pollution coating composition has the advantages of having low surface energy performance and hydrophilia and can be widely utilized in the ocean anti-pollution coating filed.

An acidic pipeline cleaning agent and a preparing method thereof are disclosed. The pH value range of the cleaning agent is 2.0-7.0. The cleaning agent is suitable for removing organic and inorganic composite dirt. A penetrant can penetrate into waterline biomembranes to dissolve fat, proteins, and the like. A sterilizing agent can kill bacteria hidden in the biomembranes, thus weakening adhesive force between the biomembranes and objects, and rapidly peeling off and cleaning clay dirt adhered to pipe walls. Hydrogen peroxide and nanometer silver play a role of purifying water. Pigment facilitates intuitive judgment of residues. The cleaning agent is used for cleaning and sterilizing a livestock drinking water system. For cleaning with existence of chickens, the cleaning agent is diluted according to a ratio of 1:500-1:1000 and then used.

The invention discloses a machining method for a steel cable for deep and blue fishery. The method is characterized in that UHMWPE powder, LLDPE powder, nanometer silver-loaded silicon dioxide antibacterial agent, white oil, silicone powder, hydroxystearic acid, antioxidant 1010, nanoscale kieselguhr, nanoscale wollastonite, antioxidant aid DLTP and ethylene-vinyl acetate copolymer are premixed and then poured into a high-speed kneading pot to be kneaded at a high speed, a UHMWPE composite material is melt and extruded through a twin-screw extruder, the extrudate passes through a metering pump additionally arranged on a twin-screw outlet to be melt and extruded from a spinning orifice, the extruded spun filament is cooled and predrawn, the predrawn filament is subjected to heat drawing, a filament rolling machine of a torque motor is used for rolling melt spinning beams after heat setting, a stranding machine is used for carrying out primary twisting on the melt spinning beam to obtain an S-twisted strand, and a three-strand twisting machine is used for processing three S-twisted strands into the Z-twisted three-strand steel cable for deep and blue fishery. The machining method can also be used in oceanographic engineering and trash holding engineering.

Disclosed is a transdermal preparation, comprising sequentially-stacked layers of a backing layer, a barrier layer, a drug adhesive layer and a release layer, wherein the drug adhesive layer contains a drug selected from the group consisting of fentanyl, an analogue thereof and a pharmaceutically-acceptable salt thereof, a skin permeation enhancer of the drug, and a polyacrylate adhesive, which shows a high skin permeation with a low drug dosage, equivalent to one with high drug dosage, by increasing the skin permeation rate of drug.

The invention provides a preparation method of a cylindrical box body with the antifouling property for a deep and open sea net cage. The method comprises the following steps of A, preparing an antifouling netting, which comprises three aspects of preparing a modified high-density polyethylene composite material, preparing an antifouling monofilament bundle and processing the antifouling netting;B, preparing an anti-abrasion netting from a polyamide netting coated with a polyurea coating; and C, preparing the cylindrical box body, which comprises three aspects of side net processing, bottom net processing and cylindrical box body processing. According to the cylindrical box body with the antifouling property for the deep and open sea net cage obtained by the preparation method, the antifouling property of the cylindrical box body can be greatly improved and the water resistance of the cylindrical box body and the attachment area of fouling organisms can be reduced on the premise of keeping the netting strength of a side net unchanged, fouling organism attachment of the cylindrical box body and net breaking fish escape accidents under severe sea conditions can be greatly reduced, and green development and modern construction of the deep and open sea net cage culture industry are realized.

The invention relates to a preparation method of a nano coating with reduced marine organism attachment on the surface of a titanium alloy, which comprises the following steps: enabling an electrolyte to contain sodium phosphate, sodium benzoate and boric acid and further contain a copper ammonia complex prepared from copper sulfate and ammonia water; performing conventional treatment on a titanium alloy, enabling the titanium alloy to serve as an anode, enabling a stainless steel plate to serve as a cathode, respectively controlling the working current, the duty ratio and the pulse frequency of a pulse power source at 10-20 A, 10-20% and 500-650 Hz, and controlling the temperature of the electrolyte at 50 DEG C; and electrolyzing for 5-30 minutes to generate a cuprous oxide Cu2O layer and a titanium dioxide TiO2 ceramic insulation coating having a nanocrystalline and non-crystalline structure on the surface of the titanium alloy, wherein the coating thickness is 5-50 mu m, the surface hardness is 400 hV, the bonding strength is 30 MPa, the insulation resistance is 1 Mohm, the 96h neutral salt spray corrosion test proves that no cracks and corrosion products are generated, the mass of the element copper in the coating is not less than 10%, and the marine organism attachment weight 3 months after hanging in marine water is not more than 20g/m<2>.

The invention relates to a wheel-rail load-increasing device for a railway vehicle, comprising an axial suspension boom (1), a framework (2), a dual-coil spring (3), an electromagnet and the winding thereof (4) and a magnetically-insulated gasket (5), wherein the axial suspension boom (1) is welded on the top of the framework (2); the framework (2) is a frame-type structure with a hollow middle; the rewinding spring (3) is disposed at the middle of the framework (2); the electromagnet and the winding thereof (4) are disposed at the both sides of the framework (2); and the magnetically-insulated gasket (5) is disposed on the bottom of the framework. Compared with the prior art, the wheel-rail load-increasing device for a railway vehicle disclosed by the invention can improve climbing capacity and change the positive pressure on steel rail by wheel set when the vehicle runs in upward slope, downward slope and flat slope, thereby freely changing the traction of the vehicle and enabling the vehicle to be of high service life and safety.

The present invention relates to a temporary substrate having a bonding surface prepared for receiving an additional substrate that will transfer a thin layer. This substrate includes a principal part or support and a surface layer thereon with the surface layer having a plurality of inserts therein. The inserts are made of a material having a coefficient of thermal expansion that is significantly different from that of the material constituting the surface layer. The present invention also relates to a processing method for transferring a selected portion of an original substrate as well as to a production method for manufacturing the temporary substrate.

A method of making an interconnect substrate mainly includes steps of: providing metal posts around a stress modulator, providing a molding compound to bind the stress modulator and the metal posts, providing a crack inhibiting layer on the stress modulator and the molding compound and interfaces between the stress modulator and the molding compound, and depositing metal conductors on the crack inhibiting layer and electrically connected to the metal posts. The metal conductors have interconnect pads superimposed over the stress modulator so that bumps for device connection can be mounted at the area covered by the stress modulator, thereby avoiding cracking of the bumps.

The invention belongs to the technical field of precoated sand molds and particularly relates to a precoated sand mold for casting. The mold comprises a movable mold and a fixed mold, a first mold cavity and a positioning groove are formed in the lower end face of the movable mold, and air outlet holes are symmetrically formed in the movable mold and communicate with the first mold cavity; a positioning groove is formed in the outer side of a cavity opening of the first mold cavity, positioning holes is formed in the positioning groove, and a fixed mold is arranged below the movable mold; a feeding channel is formed in the middle of a bottom end face of the fixed mold, the feeding channel communicates with a second mold cavity, and an upper end face of the fixed mold is provided with the second mold cavity and a strip-shaped block used for positioning. The accurate positioning and mold assembly between the movable mold and the fixed mold are achieved through the cooperation between positioning rods and the positioning holes, and anti-sticking silicone oil in tanhe oil storage cavity flows into the second mold cavity through the cooperation between the positioning rods and the oil storage cavity.

The invention discloses a base material surface treatment method. The method comprises the steps that S1, the surface of a clean base material is evenly coated with a hydrophobic paint; S2, the hydrophobic paint on the surface of the base material is dried to form a film-like hydrophobic coating; S3, residues on the surface of the hydrophobic coating are removed; S4, high-pressure airless electrostatic spraying equipment is adopted for uniformly spraying hydrophilic paint to the surface of the hydrophobic coating; and S5, the hydrophilic paint on the surface of the hydrophobic coating is driedto form a plurality of hydrophilic bulge structures which are arranged at intervals. The micron-sized concave-convex structure is formed on the surface of the base material, the super-hydrophilic andsuper-hydrophobic principle is utilized, so that the surface of the treated base material is not prone to adhesion, even if the surface of the treated base material is adhered, oil stain air bubblescan be formed in concave positions of the concave-convex structure, the adhesion area of oil stain and the surface of the treated base material is reduced, the effect that no cleaning agent is used, and the oil stain can be easily removed only through wet cloth is achieved, and the user experience is improved.

The invention relates to a production method of a high-performance scale inhibiting material. The production method is characterized by comprising the following production steps: 1) wafer culture and production; 2) wafer and sphere surface optimization; 3) protective liquid encapsulation and glass coating crushing. According to the method, the spherical granules of specially-shaped polymer resin are used as a medium, the diameter is 0.5-1mm, the technologies of forming wafers, amplifying the wafers and activating the surfaces are adopted to develop the internationally leading high-performance physical scale inhibiting material with low-energy heterogeneous nucleation crystallization reaction, and the scale inhibiting material and related filters are massively produced. The technical scheme adopts the advanced physical scale inhibiting material, requires no energy consumption, and has the scale inhibiting and removing functions of a chemical product. Maintenance cost is reduced. Meanwhile, the chemical additive widely used for scale inhibiting and removing at present is avoided, and the pollution to water resources and environments is reduced. The service life can be three to five years.

The invention belongs to the technical field of prepressing machines, and particularly relates to a prepressing machine for a plywood production line. The prepressing machine comprises a workbench, wherein a supporting plate and a prepressing unit are arranged on the workbench; the prepressing unit comprises a driving plate, a driven plate and lead screws; the upper plate surface of the driving plate is fixedly connected to the lower plate surface of a first plate through bolts, the inner sides of the four corners of the driving plate are connected to the four lead screws through first ball seats, and the four corners of the driving plate are in clearance fit with the outer rings of four supporting columns; one end of each lead screw is hinged to the supporting plate, and the other end ofeach lead screw is hinged to the workbench; the driven plate is arranged below the driving plate, the inner sides of the four corners of the driven plate are connected to the four lead screws throughsecond ball seats, the four corners of the driven plate are in clearance fit with the outer rings of the four supporting columns, and the rotating direction of balls in the second ball seats is opposite to the rotating direction of balls in the first ball seats; and through the cooperation among the supporting plate, an air cylinder and the prepressing unit, prepressing treatment of plywood is realized.

The invention discloses a break-off type tea-leaf picker with a sorting function. The break-off type tea-leaf picker comprises a main machine shell, a picking assembly, an air supply mechanism, a tea-leaf anti-adhesion channel structure and a tea-leaf sorting device, wherein, an upper air blowing opening and a lower air blowing opening formed in the air supply mechanism are in communication with a fan through independent air ducts; and the tea-leaf sorting device comprises a rolling cage capable of rotating in the axial direction, a tea-leaf sorting cavity is formed in the rolling cage, the front end and the rear end of the tea-leaf sorting cavity are provided with a tea-leaf inlet in butt joint with the feeding face and a tea-leaf outlet corresponding to the discharging face respectively, strip-shaped through holes which extend in the axial direction of the rolling cage and are used for leaking broken leaves are formed in the cage wall of the rolling cage, and the rolling cage screens away the broken leaves through the strip-shaped through holes and discharges the broken leaves from the broken leaf outlet. According to the tea-leaf picker, automatic tea-leaf picking can be achieved, moist tea leaves can be prevented from being attached to the wall face in the conveying process in a collecting cavity, the chopped tea leaves are screened through the tea-leaf sorting device before discharging, and the quality of the tea leaves is kept.

The invention discloses a grouping type machine room cabinet of an integrated signal circuit. The grouping type machine room cabinet comprises a main body, a gas tank, a damp-proof board, a combined wheel and a dust collection box, wherein a jet box is installed on the main body, a cover is placed on the jet box, the gas tank is installed in the jet box, a jet pipe is placed under the gas tank, air nozzles are installed on left and right sides of the jet pipe, block sheets are arranged in the air nozzles, handles are installed on the right sides of the block sheets, a support plate is installed in the main body, bolts are fixed on upper and lower sides of the support plate, cooling fans are arranged on left and right sides of the main body, the damp-proof board is arranged under the support plate, sliding rails are arranged on left and right sides of the damp-proof board, the combined wheel is installed under the main body, and a belt is installed on the outer side of the combined wheel. The grouping type machine room cabinet of the integrated signal circuit provided by the invention is provided with the dismountable damp-proof board that can be quickly replaced, so that the applicability of the machine room cabinet is increased.

The invention discloses a preparation method of a nanometer coating for reducing the marine organism adhesion on a titanium alloy surface. Electrolyte further comprises a copper ammonia complex, which is prepared from copper sulfate and ammonium hydroxide, except for sodium phosphate, sodium silicate or boric acid; titanium alloy is conventionally treated and used as an anode; a stainless steel plate is used as a cathode; pulse power working current, duty cycle and pulse frequency are controlled at 10-20A, 10-20% and 500-650HZ respectively; the temperature of the electrolyte is controlled at 50 DEG C; a cuprous oxide Cu2O layer and a titanium dioxide TiO2 ceramic insulating coating in nanocrystal and amorphous structures are formed on the titanium alloy surface after electrolysis for 5-30 minutes; the coating is 5-50 microns in thickness, 400HV in surface hardness, 20MPa in binding strength, and 1 megohm in insulation resistance; no crack and no corrosion product are generated in a neutral salt mist corrosion test for 96 hours; the mass content of copper in the coating is not less than 5%; the marine organism adhesion weight after the titanium alloy is hung in seawater for 3 months is not greater than 20g/m<2>.

The invention provides a pouring cup model for investment casting and a using method of the pouring cup model, and belongs to the technical field of investment casting; the pouring cup model specifically comprises a model body and a flange connected to the upper end of the model body, wherein the model body and the flange are integrally and fixedly connected and surround the upper end face of themodel body by a circle; the pouring cup model and the using method thereof can solve the problems of slag inclusion and air inclusion of a pouring cup casted by the investment casting process in the prior art.

The invention relates to the technical field of heat exchanger equipment, in particular to an efficient condensation heat exchanger of a heating system, and aims at solving the problem that in the prior art, waste gas is directly exhausted from a top opening, and consequently the surrounding environment is prone to being affected. The heat exchanger is technically characterized by comprising a shell, tube plates and heat exchange tubes, wherein the tube plates are arranged at the two ends of the shell in the length direction and are fixed to the shell, the shell comprises a top plate and an extension plate, the extension plate is perpendicular to the top plate, exhaust ports are formed in the shell and penetrate through the shell, an extension tube is arranged at each exhaust port in an upward extending mode, and the extension tubes are fixedly arranged on the exhaust ports. Through the arrangement of the extension tubes and the exhaust ports, the attachment area of a single exhaust port is reduced, condensate water can form water drops more easily, more toxic substances can be adsorbed when the condensate water is discharged and passes through the extension tubes, therefore, separate discharging of the toxic substances is reduced, and environmental pollution is relieved.