8results about How to "Reduced adhesion strength" patented technology

The invention relates to the field of coating compositions, and particularly discloses an anti-icing self-cleaning coating material for a tower drum of a wind driven generator as well as a preparation method and application of the anti-icing self-cleaning coating material. The anti-icing self-cleaning coating material comprises a bottom coating material and a surface coating material, the bottom coating material contains fluorosilane, amino silane, ethyl acetate, butanone, filler, fluorocarbon resin and an isocyanate curing agent, the filler comprises alpha-Fe2O3 modified mesoporous SiO2 particles and hydroxylated boron nitride, and the surface coating material comprises fluorine modified SiO2 particles and acetone. The anti-icing self-cleaning coating material can achieve a good protection effect on the tower drum of the wind driven generator, the water contact angle of the surface of the coating is larger than 155 degrees, the water rolling angle is smaller than 5 degrees, the ice adhesion strength is smaller than 30 kPa, the water contact angle is still larger than 150 degrees after 20 times of freezing and thawing cycles, at the moment, the tower drum can better adapt to the low-temperature and high-humidity environment, the coating stripping possibility is low, and the anti-icing self-cleaning coating material can be applied to the wind driven generator tower drum. And the corrosion speed of the steel is reduced, so that the normal use time limit is longer.

The present application relates to filter press technical field, specifically to a kind of variable attitude filter plate assembly for filter press, including fixed plate, multiple filter plates and connecting unit, multiple the filter plate is arranged in the side of the fixed plate, each the filter plate is respectively through the connecting unit with the fixed plate movable connection, to make each the filter plate can be converted between vertical attitude and inclined attitude relative to the fixed plate;When the driving unit drives each the filter plate mutually away and forms second state, each the filter plate switches to inclined attitude, the spacing between adjacent filter plate increases, and the filter surface of each the filter plate is inclined relative to vertical direction, solved the existing filter press unloading cake because of the strong adhesion between mud cake and filter plate and lead to unloading cake not completely, need manual cleaning problem.

The utility model provides a kind of anti-icing gate device, it is related to hydraulic engineering gate technical field, including: building, the upper position of building is equipped with a support frame, the middle position of support frame is equipped with a stable sleeve, the inner side position of stable sleeve is equipped with a group of driving mechanism, a vertical lifting rod is inserted between stable sleeve and driving mechanism, the upper position of gate body is provided with two symmetrical distribution stable grooves.In the side of gate, a sealing washer and a sealing plate are provided, the sealing washer and the sealing plate form a double-sealing structure to seal one side of the gate body, block the water from seeping into the beam grid of the gate, fundamentally reduce the risk of icing, at the same time, improve the overall waterproof performance of the gate, solve the problem that the beam grid on one side of the gate body is easy to freeze.

The invention relates to the technical field of railway detection, and discloses a railway cable surface defect detection robot which comprises a lantern ring; a crushing member; a drive ring; a moving member; and a plurality of groups of detection modules are mounted on the moving part in an annular array. By arranging a plurality of groups of crushing parts which are driven by a driving ring and move along a concentric-square-shaped groove, the oppositely arranged crushing hammers alternately perform opposite impact and back recovery on the cable. According to the alternating reciprocating motion mode, efficient crushing and stripping of the surrounding ice layer are achieved, the generated radial force is balanced on the whole, the dynamic clamping effect similar to alternating crawling is formed, cable swinging is actively restrained and counteracted in the deicing operation, the problem of cable shaking caused by deicing external force is fundamentally solved, and the deicing efficiency is improved. And the operation safety and the stability of the detection image are ensured.

This application relates to the field of materials testing technology, and in particular to a combustion chamber, comprising a chamber body, a sample holder slidably connected to the inner wall of the chamber for sample clamping, and a collection tray slidably connected to the inner wall of the chamber and located below the sample holder. The side wall of the chamber body has a material extraction port for the collection tray to slide in and out. The collection tray includes a base plate and side rails fixedly connected to the periphery of the base plate. The base plate has a heating chamber, and a heating element is installed within the heating chamber. When it is necessary to clean the dripping residue in the collection tray, the collection tray is slid out, and the heating element in the heating chamber heats the collection tray, thereby softening the dripping material and reducing its adhesion strength, thus facilitating the cleaning of the dripping residue.

The invention discloses an agitating lorry with a concrete slump detection device, and relates to the technical field of concrete detection, the agitating lorry comprises a cylinder, the whole body is of a split structure, the cylinder comprises a plurality of same sub-cylinder parts which are distributed in a surrounding manner, and every two adjacent sub-cylinder parts are in sealed connection through a connecting part; an elastic interlayer covers the inner wall of each sub-cylinder part, a closed cavity is formed between the elastic interlayer and the inner wall of the corresponding sub-cylinder part, gas is injected into or discharged from the closed cavity, and the elastic interlayer can expand and protrude out of the plane of the inner wall of the sub-cylinder part or contract and cling to the inner wall of the sub-cylinder part; the bottom end of each sub-cylinder part can swing outwards relative to the top of the sub-cylinder part so that the cylinder body can be diverged and expanded from the bottom, and locking assemblies in one-to-one correspondence with the sub-cylinder parts are arranged on the periphery of the bottom of the cylinder body and used for limiting the swing action of the sub-cylinder parts. The concrete slump test device has the effect of improving the accuracy of the concrete slump test result.

The application discloses a protective layer for an installation-free magnetic lamp in an oil field and a preparation method thereof, and belongs to the technical field of coating. The protective layer is attached to the magnetic attraction plate surface of the installation-free magnetic lamp. A plurality of magnets are uniformly distributed on the magnetic attraction plate surface of the installation-free magnetic lamp. The magnets are neodymium-iron-boron magnets. The static suction force of a single magnet is greater than 20 kg. The protective layer comprises a bottom layer and a release layer. The bottom layer comprises isocyanate group modified fluorocarbon resin, NHS activated ester modified mica flake modified nano magnetic powder compound, ethylene-vinyl alcohol copolymer, n-butyl acetate, dibutyl phthalate, polycarboxylate dispersant and 3-isocyanate group propyl trimethoxysilane. The release layer comprises isocyanate group modified fluorocarbon resin, acrylate polyol, poly N-isopropyl acrylamide modified pressure sensitive viscosity microspheres and silane coupling agent. The application solves the problems of oil stains and rust.

This invention provides a prosthesis removal device for knee replacement revision surgery based on a high-frequency electrosurgical unit, belonging to the field of medical device technology. It includes a high-frequency electrosurgical pen tip, with a high-frequency electrosurgical pen body fixedly connected to the top of the tip. A connecting plate is located at the top of the pen body, and a first negative pressure tube is mounted on the connecting plate, passing through it. A fixing cap is threadedly connected to the top of the pen body, movably sleeved with the first negative pressure tube, and positioned at the top of the pen body and fitting against the connecting plate. The bottom end of the first negative pressure tube extends to the outside of the bottom end of the pen body, and a suction component is located at the lower end of the tube. This invention uses the high-frequency electrosurgical pen tip to heat and melt the bone cement in the prosthesis, reducing the difficulty of removing the main bone from the prosthesis and lowering the requirements for operator experience and skill. The suction component absorbs the melted bone cement.