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60results about How to "Overcoming Adhesion" patented technology

Acrylic ester waterproof gasket cement

The invention relates to acrylic ester waterproof gasket cement and a preparation method thereof. The acrylic ester waterproof gasket cement includes a technology of environmental-friendly universal glass cement (the patent serial number is 200810083601.8) and comprises the following composition by weight: 30 parts of acrylic ester emulsion, 0.5-3 parts of dispersant, 2-10 parts of silica solution, 0.2-5 parts of coupling agent, 30-80 parts of filling, 0.1-2 parts of pH modifying agent and 0.5-2 parts of coalescing agent. The preparation method of the acrylic ester waterproof gasket cement comprises the following steps: adding one of a plasticizer, the coalescing agent and the coupling agent in a container to be mixed into liquid A, one of the silica solution, the coupling agent is added in another container to be mixed into liquid B, the acrylic ester emulsion is added in the containers, and the dispersant, the liquid A, the liquid B, the filing and the pH modifying agent are added in sequence during stirring the acrylic ester emulsion and the acrylic ester waterproof gasket cement is obtained after the mixture is evenly stirred. The invention overcomes the deficiencies that the aqueous gasket cement is not waterproof and has poor adhesiveness, the solvent-borne type gasket cement has good waterproof performance, but contains over 30 percent of VOC and pollutes the environment seriously, and most of organic solvent belongs to a petrochemical product and causes the waste of energy. The waterproof gasket cement is environmental-friendly and has good waterproof performance and adhesiveness.
Owner:金朝绪

Manufacturing method of gecko hair-imitating dry adhesive

A manufacturing method of a gecko hair-imitating dry adhesive. Aiming at disadvantages of easy degradation, easy pollution, and self-adhesion for current wet adhesives, and complicated and tedious manufacturing modes of current dry adhesives, by studying the micro-nano hierarchical structure characteristics of gecko foot hair in the nature, the invention manufactures a composite mold of SU-8 adhesive and silicon by combined ICP etching technology and thick-resist technology; a micro-nano hierarchical structure fiber array with a high depth to width ratio is obtained by one-step forming through a micro-molding mode; the structure imitates the structure characteristics of gecko in the nature, and has a superactive adhesion characteristic. The invention comprises silicon mother board manufacturing based on ICP etching technology, composite mold manufacturing based on thick-resist technology, and bilayer fiber array manufacturing based on micro-molding formation. The invention can manufacture a micro-nano hierarchical structure which has parameters close to parameters of gecko foot hair in the nature; the prepared product is a superactive dry adhesive which not only adapts different surfaces but also is easy to desorb the surfaces actively; the manufacturing cost is low, and the method is simple.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for manufacturing drag reduction surface

The invention belongs to the technical field of micro-nanometer manufacturing and relates to a method for manufacturing the surface with resistance reduction. Micron level structure arrays in alternate arrangement are designed and manufactured on the surface of a silicon substrate, a silicon dioxide substrate, an engineering plastic substrate or a metal substrate; an ultraviolet stamping photoetching technology is used as a transferring means; a template can be repeatedly used; a fluorination process is used as a surface treatment means to obtain a microstructure substrate with the function of resistance reduction; and the microstructure surface of the substrate has quite low surface energy. The method can be used for the surface of a device for a micro-electromechanical system, and can reduce the surface friction and abrasion as well as the invalidation of adhesion under a microscale; the method can be used for the surface of a conveying pipeline and a microflow device, can reduce the on-way pressure loss of a fluid in a micro-passage and the flow resistance of the fluid, and can increase flow speed; and the method can be used in aviation, spaceflight, navigation, traffic transportation and other fields, and can reduce energy consumption and consequently save energy.
Owner:XI AN JIAOTONG UNIV

Anti-scratch, fold-resistant and solvent-resistant thermosetting transferring system paint and preparation method thereof

The invention discloses anti-scratch, fold-resistant and solvent-resistant thermosetting transferring system paint and a preparation method thereof. The paint comprises the following components by weight percent: 5 to 8 percent of acrylic resin, 6 to 10 percent of H-type nitrocotton, 5 to 8 percent of cellulose ester resin, 2 to 5 percent of butylated amino resin, 0.1 to 0.3 percent of organic acid catalyst, 0.3 to 0.5 percent of adhesive force accelerant, and 68.5 to 79 percent of solvent. By virtue of a thermosetting reaction, the resin of a transferring coating is limitedly cross-linked, so that the hardness and flexibility are improved, and compared with the traditional thermoplastic transferring system, the scratch resistance, fold resistance and solvent resistance are remarkably improved, and the high-performance requirement of a product and a printing process can be better met; and compared with other thermosetting transferring systems, the defects that the transfer is poor and the attachment to aluminum is poor can be overcome. In addition, the resin with appropriate activity is preferred, so that the paint can be directly used as single-component paint, and the operability of the production ingredients is improved.
Owner:SHANGHAI WEIKAI CHEM

Device for cooperatively enhancing fluidization of nanoparticles by centrifugal field and sound field

The invention provides a device for cooperatively enhancing the fluidization of nanoparticles by a centrifugal field and a sound field. The device comprises a feeding hopper (1), an annular air inlet chamber (2), a centrifugal fluidized bed body (3), a stepping motor (4), a discharging hopper (5), a bed body supporting frame (6), a cloth bag dust collector (7), a sounder (8), a loudspeaker (9), an air outlet (10), an annular air distribution plate (11), an air inlet (12), an inner discharging hole (13), a sealing gasket (14) and a right-angle transmission gear box (15). According to the device provided by the invention, the fluidization of the nanoparticles is enhanced through the centrifugal field and the sound field, and abnormal fluidization phenomena including channeling, slugging even normal fluidization and the like of the nanoparticles in a fluidized bed can be effectively eliminated; an agglomeration-crushing process of particle agglomeration is enhanced and mixing between the particles is enhanced; the heat and mass transportation capability between the particles and a main body is improved; process application and amplification are easy to realize; the device has strong operation controllability and is stable to operate.
Owner:SOUTHEAST UNIV

Three-phase electromagnetic wiping device suitable for rod-shaped workpiece

The invention discloses a three-phase electromagnetic wiping device suitable for a rod-shaped workpiece. The three-phase electromagnetic wiping device comprises a coil former and at least one group ofthree-phase coils, wherein a through hole is formed in the center of the coil former, the through hole can allow the rod-shaped workpiece to move upwards and penetrate therethrough, a liquid coatingis adhered to the surface of the rod-shaped workpiece, at least one group of three-phase coils are sequentially wound around the outer side of the coil former in the axial direction, when at least onegroup of three-phase coils are electrified, each phase coil generates an alternating magnetic field, at least one group of three-phase coils form a traveling wave magnetic field at the center of thecoil former, when the rod-shaped workpiece moves upwards in the through hole, under the action of the alternating magnetic field generated by each phase coil, a first electromagnetic force which is obliquely downwards is generated in an induction mode, a second electromagnetic force which is opposite to the movement direction of the rod-shaped workpiece is generated in an induction mode under theaction of the traveling wave magnetic field, the first electromagnetic force and the second electromagnetic force prevent the liquid coating from moving upwards, the adhesion force in the coating is overcome, the coating is compressed, and the surplus coating is wiped, so that the thickness of the coating of the rod-shaped workpiece is controlled. The device has a good wiping effect.
Owner:HUAZHONG UNIV OF SCI & TECH

Extrusion-type deslagging device for oxygen lance

The invention discloses an extrusion-type deslagging device for an oxygen lance and belongs to deslagging devices. The extrusion-type deslagging device structurally comprises two oscillating cylinders, two rotating arms, two deslagging tool bits, a fixed support and two oscillating cylinder supports, wherein the oscillating cylinder supports are connected with oxygen lance track columns at the two ends of an oxygen lance track cross beam respectively; the fixed support is arranged at the position, between the two oscillating cylinder supports, on the oxygen lance track cross beam; each oscillating cylinder support is hinged to one of the oscillating cylinders; the other end of each oscillating cylinder is hinged to one of the deslagging tool bits; each deslagging tool bit is hinged to the fixed support through one of the rotating arms; and the two deslagging tool bits are positioned at the left end and the right end of an oxygen lance respectively. The extrusion-type deslagging device for the oxygen lance has the characteristics that potential safety hazards of manual deslagging can be eliminated; the adhesive force between slag and the lance can be overcome by use of extruding and shearing forces, and a steel wire rope of the oxygen lance is free of impulsive load in the deslagging process, so that equipment running is safe; and the deslagging tool bits are stably stressed in the deslagging process, and therefore have low probability of damage.
Owner:SHANDONG IRON & STEEL CO LTD

Lifting column convenient to maintain and working method thereof

The invention relates to the technical field of roadblock equipment, and provides a lifting column convenient to maintain and a working method thereof. The lifting column comprises a control system, an outer cylinder and an inner cylinder, wherein the inner cylinder comprises a guide section and an anti-collision section, the anti-collision section is bonded with the guide section, a plurality ofclamping grooves are formed in the anti-collision section, and an infrared sensor is mounted at the upper part of the anti-collision section. The lifting column further comprises a locking mechanism,wherein the locking mechanism comprises a fixing disc, a first through hole is formed in the fixing disc, a plurality of accommodating grooves are formed in the fixing disc, each accommodating grooveis internally provided with a locking assembly, the locking assembly comprises a clamping block, a spring and a baffle, the spring enables the clamping block to have the tendency of leaving the accommodating groove, the baffle is arranged in the first through hole and can slide on the fixing disc, the upper part of the baffle abuts against the clamping block to prevent the clamping block from leaving the accommodating groove, a second through hole is formed in the baffle, and the clamping block can leave the accommodating groove from the second through hole. According to the lifting column convenient to maintain and the working method thereof, the intercepting effect is better, and maintenance is convenient after damage.
Owner:BEIJING ZHUOAOSHIPENG TECH CO LTD

Pipe gallery mold

The invention belongs to the technical field of moulds, and specifically discloses a pipe gallery mould, which includes an inner mold and an outer mold, the outer mold includes a bottom mold, two opposite end molds and two opposite side molds, the inner mold The two ends of the mold are respectively connected with two opposite end forms, the side forms and the bottom form include connecting brackets and concrete prefabricated parts, the two opposite end forms are connected through the connecting brackets, and the concrete prefabricated The component is arranged in the gap formed by the connecting bracket and the end form, and the concrete prefabricated part is connected with the end form and the connecting support and spliced ​​tightly. After the demoulding, the prefabricated part is closely attached to the pipe gallery, which strengthens the side wall and bottom of the pipe gallery, reduces the use of structural steel bars, reduces the amount of concrete used in the pouring process of the pipe gallery, and reduces the cast-in-place concrete in the pipe gallery The volume improves the heat dissipation effect inside the concrete and prevents cracking. At the same time, the side wall and bottom of the pipe gallery do not need to be demoulded, which reduces the difficulty of demoulding and speeds up the construction process.
Owner:中民筑友科技(衡阳)有限公司

Environment-friendly calcium oxide ultrafine grinding process and complete equipment thereof

The invention discloses an environment-friendly calcium oxide ultrafine grinding process and complete equipment thereof. The production process comprises the following steps: 1, feeding and primary crushing: feeding calcium oxide hermetically, and crushing the calcium oxide preliminarily and scattering preliminarily the refined particles at the same time; 2, superfine crushing and scattering: crushing the particles to be 1250 meshes, and crushing the particles while scattering to avoid particles agglomeration; 3, anti-adsorption grading: preventing the powdered particles from being absorbed on blades, and grading the qualified powdered particles at one time; 4, anti-adsorption finished product collection: collecting the powdered particles adhered to inner walls of a collection box through the expansion of a gas bag; 5, ultrafine calcium oxide discharging and packaging. In addition, the process further comprises auxiliary steps of removing dust from tail gas, circulating hot air and the like. According to the environment-friendly calcium oxide ultrafine grinding process and the complete equipment thereof, the whole set of equipment is reasonable in matching, energy consumption is effectively reduced, and dust pollution can be minimized in the production process; and the problem of adhesion and agglomeration of the calcium oxide in production can be solved, the production efficiency is improved, and the calcium oxide with high fineness and high purity is prepared.
Owner:FUJIAN NORMAL UNIV

Door frame, preparation method of door frame, and molding press door comprising door frame

The invention discloses a door frame and further discloses a molding press door and a preparation method of the molding press door. The door frame comprises a door frame main body and a side frame. Arectangular opening with the size being matched with that of a rectangular door core is formed in the middle of the door frame main body, and a rectangular right-angle groove surrounding the rectangular opening is formed in the obverse side of the door frame main body. The cross section of the right-angle groove is in an L shape, and the right-angle groove comprises a horizontal groove face parallel to the obverse side of the door frame main body and a vertical groove face perpendicular to the obverse side of the door frame main body. The horizontal groove face is covered with the side frame,and the side frame extends out of the horizontal groove face towards rectangular opening to form an abutting-joint part. The thickness of the side frame is smaller than or equal to the height of the vertical groove face. The molding press door formed by assembling the door frame is overall flat and smooth, the stability and strength of the molding press door are enhanced, and the impact-resistantand extruding-resistant properties of the molding press door are also enhanced.
Owner:SUOFEIYA HOME COLLECTION

Collagen-based dura mater and preparation method thereof

The invention provides a collagen-based dura mater and a preparation method thereof. The collagen-based dura mater comprises a collagen mater layer facing a brain tissue side and a composite collagen mater layer facing a skull side, the collagen membrane layer comprises at least two layers of collagen membranes, and the collagen membranes are formed by I-type collagen; the collagen film layer is a compact layer obtained by spraying a bonding medium on at least two layers of collagen films, overlapping and compounding, and rolling; the at least two layers of collagen membranes comprise a first collagen membrane and at least one layer of second collagen membrane, and the first collagen membrane faces the brain tissue side; the thickness ratio of the first collagen membrane to the second collagen membrane is 1: (1.5-2); the composite collagen membrane layer is formed by compounding type I collagen and mineralized collagen particles, and the interior of the composite collagen membrane layer is of a porous structure; after the collagen membrane layer and the composite collagen membrane layer are compounded, the compounded material is sequentially subjected to rolling forming and crosslinking treatment, and the collagen-based dura mater is obtained. The collagen-based dura mater provided by the invention has excellent mechanical properties and anti-adhesion performance.
Owner:BEIJING ALLGENS MEDICAL SCI & TECH +1
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