49results about How to "Avoid direct abrasion" patented technology

The invention discloses an imitated-marble tile comprising the following components in percentage by weight: 95-96.7% of blank, 1.5-2% of ground coat enamel, 0.15-0.9% of fancy glaze and 1.6-2.1% of transparent overglaze. The imitated-marble tile provided by the invention has the fine grain similar to that of natural marble and has the hierarchy and the transparent feeling of natural stone; flower color is in glaze to avoid that the flower color of the tile is directly abraded, thus prolonging the service life of the tile, and keeping the integrity and the naturalness of the follower color for a long term.

The invention discloses a process for producing artificial marble ceramic tiles. The process comprises the following steps of: (1) preparing the following components in percentage by weight: 1.5 to 2 percent of ground glaze, 0.15 to 0.9 percent of fancy glaze, 1.6 to 2.1 percent of transparent cover glaze and 95 to 96.7 percent of blank; (2) drying the blank after being molded by a pressing machine; (3) applying the ground glaze to the dried blank; (4) printing the fancy glaze; (5) applying the transparent cover glaze; (6) putting the blank into a kiln for firing; (7) polishing for the first time; (8) polishing for the second time; and (9) edging to obtain products. The artificial marble ceramic tiles produced by the process of the invention have fine grains which are approximately similar to that of natural marbles, and have stereovision and transparency of the natural marbles at the same time; patterns and colors are positioned among glazes so as to ensure that the patterns and the colors are not directly worn when the ceramic tiles are used; the service life of the ceramic tiles are prolonged; and the completeness and naturalness of the patterns and the colors of the tiles are kept for a long time.

The invention discloses a combined fishnet square net cage used for mariculture, relating to a mariculture net cage. In the combined fishnet square net cage, a cupronickel B10 stretching net, a brass HA177-2 stretching net, a high-strenght single-fast-knot polyethylene fibre net, a high-strength nylon warp knitting net, a fishing high-strength polyethylene monofilament rope, a galvanized iron pipe and a cylindrical foam buoy are adopted. The combined fishnet square net cage is characterized in that a frame system used for the net cage is of a square double-row galvanized iron pipe frame structure. In a fishnet system used for the net cage, a double-layer synthetic fibre fishnet serves as a first fishnet, a combined copper alloy stretching net serves as a second fishnet, and the first fishnet and the second fishnet are in longitudinal semi-soft connection; a square synthetic fibre fishnet is in a combined fishnet form of the fishnets used for the net bottom of the net cage; the combined fishnet used for the net bottom of the net cage is hung on the square double-row galvanized iron pipe frame; and the square double-row galvanized iron pipe frame of the net cage is connected with a float line frame of a mooring system by a mooring rope.

The invention provides a combined box body system used for a floating net cage and a mated frame system thereof, relating to a seawater cultivation floating net cage. A copper alloy inclined square mesh, a copper alloy weaving mesh, high-strength polyamide warp knitting fishnet, ropes, a galvanized iron pipe and foam buoys. The combined box body system is characterized in that a floating net cageframe system comprises two rows of square galvanized iron pipe frames; the foam buoys are distributed below the two rows of galvanized iron pipe frames; the fishnet system of a net cage body combinesa first high-strength polyamide warp knitting fishnet, a second copper alloy inclined square mesh and the copper alloy weaving mesh used for the bottom of the net cage'; the edge installing wire ropeof the fishnet at the bottom of the net cage is assembled on a square high-strength polyamide pipe frame; the high-strength polyamide pipe frame and a horizontal wire rope at the lower edge of the second copper alloy inclined square mesh are connected by an ultrahigh-strength rope; and a vertical force net is installed in the vertical direction of the fishnet and extends to the edge wire rope of the copper alloy weaving mesh used for the bottom of the net cage.

The invention discloses a method for manufacturing an antifouling and antibiosis type yellow croaker net cage, which relates to a method for manufacturing a mariculture net cage. According to the invention, the method for manufacturing the antifouling and antibiosis type yellow croaker net cage adopts a buoyancy force system and a netting system, and is characterized in that the buoyancy force system adopts a combination buoyancy force form of 'an anti-aging high-density polyethylene double-floating-pipe cylindrical frame structure + 18 cube cystosepiments with each edge length of 60cm; the netting system adopts a combination structure netting form of 'a first box longitudinal netting + a second box longitudinal netting + a net cage bottom netting; the net cage bottom netting is assembledon a circular high-density polyethylene pipe support which is wrapped with a layer of polyamide multifilament wrap knitting net; and three cross lacing lines are installed at the bottom of the net cage, a polypropylene rope is tied at the cross point of the cross lacing lines, and two foam float bowls which are externally wrapped by double-layer seawater corrosion protection canva and nylon nets are tied at the other end of the polypropylene rope.

The invention relates to a sliding nozzle device which comprises a pedestal, sliding plate bricks and a sliding support, wherein a pulley is arranged between the pedestal and the sliding support, a spring locking mechanism is respectively arranged at both outer sides of the pedestal and the sliding support, a link mechanism formed by a rocking arm and a hook bar is respectively hinged at one end part of the pedestal and the sliding support, an upper sliding plate brick chamber is arranged in the middle on the lower surface of the pedestal, an upper sliding plate brick is installed in the chamber, a through hole is arranged at the upper part of the chamber, an upper nozzle is installed at the upper part of the chamber, a lower sliding plate brick chamber is arranged in the middle on the upper surface of the pulley, a lower sliding plate brick is installed in the chamber, a lower nozzle mounting hole is arranged at the lower part of the chamber of the pulley, a step type snap ring is arranged on the inner edge of the hole, and a lower nozzle with steps is installed in the lower nozzle mounting hole; the chambers for installing the upper sliding plate brick and the lower sliding plate brick inside the pedestal and the pulley are both oblong chambers respectively provided with a small circular arc at one end and a large circular arc at one end, and the large circular arc and the small circular arc are in tangent transitional connection; and the device has lower cost, convenient operation and accurate control, and is very beneficial to popularization and application.

The invention relates to an automatic cleaning screw for a track end face bearing. A hook head shaft moving together with the cleaning screw enables the cleaning screw to generate axial reciprocatingcleaning screw movement under the action of the track end face of a nozzle bearing, and simultaneously achieves slow rotation required for avoiding abrasion, so that the automatic cleaning capabilityof dirt is improved, and the uniformity of dirt cleaning is remarkably improved. Under the action of a positioning bearing tube, the hook head shaft can maintain coaxiality with the center line of a heat exchange tube when rotating, so that the possibility of abrasion between the cleaning screw near a pipe orifice and the inner wall of the heat exchange tube caused by rotating and shaking of the hook head shaft is avoided. The nozzle bearing is produced by injection molding of abrasion-resistant engineering plastics; and therefore, the track end face bearing has automatic spiral cleaning, simple structure, little resistance, convenient manufacture and good universality, and is suitable for tubular condenser, evaporator and crystallizer where tube pass feed liquid can generate dirt.

The invention discloses a tooth-shaped structure of a bolt fixing tool. The tooth-shaped structure comprises a drive part, a looping part is concavely arranged inside the drive part; the inner periphery of the looping part is a hollow structure and is approximately a polygonal structure, the intersectional angle between edges of the polygonal structure of the looping part are respectively provided with an escape groove, the escape groove is a recessed arc structure, an opening of the escape groove and an opening of the adjacent escape groove take on a straight edge, the straight edge is a lank line section; a top surface is respectively arranged at the center of the straight edges between two adjacent escape grooves, the top surface is in a planar straight line section structure, the top surface is arranged at the straight edge between the two adjacent escape grooves and is superposed on the straight edge; a first groove and a second groove are respectively recessed between the escape groove and the top surface, the first groove is closer to the escape groove, the second groove is closer to the top surface, the first and the second grooves are arranged in line symmetry with another first and second grooves; based on the intermediate vertical line of the distance between the two side walls of the escape groove with the arc structure, the first and the second grooves are arranged in line symmetry with another first and second grooves by the central vertical line of the distance between the two side walls of the arc structure of the escape grooves. The tooth-shaped structure of a bolt fixation tool can not cause slipping and bruting of the bolt fixing part resulting from the stress concentration of point contact.

The invention relates to an advanced ceramic pipe type defueling pump, comprising a pump cylinder, a plunger piston, an upper traveling valve assembly, a lower traveling valve assembly and a strandingvalve assembly. The advanced ceramic pipe type defueling pump is characterized in that the inner wall of a steel-based pipe of the pump cylinder is provided with an advanced ceramic protection layerwith high temperature resistance, abrasion resistance and corrosion resistance, which is used as an lining; the outer surface of a rod body of the plunger piston is previously provided with grooves atintervals, alloy coatings with abrasion resistance and corrosion resistance is sprayed on the grooves, and zirconia toughening alumina ceramic rings are embedded into the surfaces of the alloy coatings inside the grooves.

The invention discloses a combined type milling cutter. The combined type milling cutter comprises a spindle, a clamping groove, a rotator, a connecting barrel, a connecting unit, a milling edge, scrap guide grooves, a hairbrush, a drilling bit, stoppers, cutting blocks, a fixing bolt, liquid outlets, a channel and branch pipes. The combined type milling cutter has the advantages that one end of the spindle is provided with threads, and the spindle is connected with the rotator through the connecting nut; the rotator is provided with a plurality of the scrap guide grooves uniformly distributed, which can timely guide out material scraps; the rotator is also provided with the hairbrush which can eliminate burrs produced during a milling process to improve the cleanliness of milled surfaces;the drilling bit is provided with a plurality of the stoppers which are connected with a plurality of the high-hardness cutting blocks, which can mill and drill high-hardness materials; the inside ofthe combined type milling cutter is provided with the channel allowing cooling liquid to flow in, which then flow out via the liquid outlets at the tops of the branch pipes to cool down the combinedtype milling cutter and further to avoid excessive wearing.

The invention discloses an air conditioner stop valve inner hole deburring device. The air conditioner stop valve inner hole deburring device comprises a cutter handle and elastic blades, a strip-shaped notch is formed in a center of the front end of the cutter handle, the elastic blades are fixedly connected into the strip-shaped notch, the elastic blades are symmetrically arranged with the cutter handle as a center, and the distance between the two elastic blades is gradually increased from the position of the strip-shaped notch to the end away from the strip-shaped notch; and cleaning assemblies are symmetrically arranged on two sides of the elastic blades, each cleaning assembly comprises an arc-shaped shifting piece, a connecting piece, a compression spring and a brush, the connecting pieces are arranged in the arc-shaped shifting pieces, the brushes are arranged at the outer ends of the connecting pieces, and the compression springs are located between the connecting pieces and the arc-shaped shifting pieces. The device has the beneficial effects of being good in burr cleaning effect, long in service life and capable of preventing burrs on the inner wall from being bonded.

The invention relates to a yak feed feeding device. The yak feed feeding device comprises a motor, a motor connecting coupler and a coupler connecting shell and is characterized in that the shell comprises a first fixing seat, a plurality of sleeves connected end to end are connected to the right side of the first fixing seat, a feed inlet is welded to the upper portion of the sleeve directly connected with the first fixing seat, a flange is fixed inside the sleeve with the feed inlet, the flange is connected with a spiral end cover, spiral pieces are welded to the spiral end cover, the welding end of each spiral piece is provided with first connecting screw holes, a limit boss is connected to the outer sides of the first connecting screw holes, the other end of each spiral piece is provided with second connecting screw holes, a connecting groove is fixed to the outer sides of the second connecting screw holes, the second connecting screw holes of each spiral piece are connected with the first connecting screw holes of the corresponding adjacent spiral piece through rotary columns, a roller sleeve sleeves one end of each rotary column, a retaining plate is connected to the bottom of the spiral piece which is furthest away from the spiral end cover, a discharge outlet is welded below the last sleeve, and a second fixing seat is connected to the tail end of the last sleeve. By the yak feed feeding device convenient in maintenance and replacement, defects in the prior art can be overcome, and batch feed conveying can be achieved.

The invention discloses a pressure type temperature controller used for controlling a refrigeration compressor to be on and off, and relates to the technical field of temperature controllers. The pressure type temperature controller comprises a shell, a power supply mechanism is arranged on the inner bottom wall of the shell, a conversion mechanism is arranged on the top of the power supply mechanism, two symmetric inverters are fixedly connected to the inner top wall of the shell, the output ends of the two inverters are electrically connected with first wires, a voltage stabilizer is fixedlyconnected to the inner bottom wall of the shell, the ends, away from the two inverters, of the two first wires are electrically connected with the input end of the voltage stabilizer, the power supply mechanism comprises a mobile power source, a second wire, a charging plug and a first collecting ring, the mobile power source is arranged on the inner bottom wall of the shell, the input end of themobile power source is electrically connected with the second wire, and the end, away from the mobile power source, of the second wire is electrically connected with the charging plug. The pressure type temperature controller used for controlling the refrigeration compressor to be on and off has the advantage of being high in temperature adjusting speed efficiency.

The invention discloses a permanent magnet clutch and an assembling method thereof. The permanent magnet clutch comprises a driving disc and a driven disc. The driving disc comprises a driving inner shaft, a magnet fixing disc, a plurality of first magnetic rings, a driving outer shaft, a plurality of back iron blocks and a plurality of second magnetic rings. The driven disc comprises a driven shaft, an outer sleeve and an inner sleeve. The magnet fixing disc is coaxial with the driving inner shaft, the first magnetic rings are installed on the magnet fixing disc, and the magnetic poles of every two adjacent first magnetic rings are arranged oppositely. The driving inner shaft is sleeved with the driving outer shaft, and the back iron blocks are embedded into the outer wall of the drivingouter shaft. The second magnetic rings are fixed to the driving outer shaft, and the magnetic poles of every two adjacent second magnetic rings are arranged oppositely. The second magnetic rings coverthe corresponding back iron blocks and are separated from the inner sleeve. The outer sleeve is sleeved outside the driving outer shaft, is fixed with the driven shaft and accommodates the driving disc. The inner sleeve is fixed on the inner wall of the outer sleeve. A master part and a slave part in the clutch are not in direct contact, so that mechanical abrasion of the clutch is avoided, the lubricating requirement is reduced, and the clutch has the advantages of vibration isolation and noise reduction.

The invention discloses a high-strength mold preparation process for automatic processing, comprising a preparation step of a mold sleeve, a preparation step of an insertion ring and a preparation step of a mold core; the mold in the process comprises the mold sleeve, the insertion ring provided on the inner side of the mold sleeve and the mold core provided on the inner side of the insertion ring; the peripheral wall of the insertion ring is provided with four L-shaped through grooves, and the four L-shaped through grooves are evenly distributed in the peripheral wall of the insertion ring. The insertion ring is arranged on the inner side of the mold sleeve, and the mold core is arranged on the inner side of the insertion ring, and no interference fit is needed between the mold sleeve andthe mold core, thereby avoiding damage to the mold sleeve and the mold core during disassembly, and ensuring the service life of the mold sleeve and the mold core; the carburization is carried out twice in the process of heat treatment of the mold, the thickness of a carburized layer is increased, and the mold has high strength performance under the pressure of concentrated pressure; and the quenching oil is improved so that the quenched mold has low roughness degree and is easy to dye and electroplate, while ensuring the quality of mold quenching.

The invention relates to a cylindrical copper-alloy netting net cage for aquaculture. The cylindrical copper-alloy netting net box adopts a high-strength single-dead-knot polyethylene-fiber net, a high-strength polyamide warp knitting net and a copper-alloy rhombic net and is characterized in that a buoyancy system of the net cage is in a combined structure of black high-density polyethylene double floating pipes and cylindrical floaters; a netting system for the net cage consists of a double-layer synthetic-fiber netting as a netting I, a copper-alloy rhombic net as a netting II and a high-strength polyamide warp knitting net as a combined netting for the bottom of a net cage body; the netting I and the netting II of the net cage body are flexibly connected by a longitudinal netting; side bolsh lines and lacing lines are assembled on the netting for the bottom of the net cage body, and horizontal lines and vertical lacing lines are arranged on the netting on the side surface of the net cage body; the combined netting for the net cage body is hung on an armrests and a floating pipe inner frame of a net cage frame; an outer frame of the floating pipe frame is connected with a floating rope frame of a fixed mooring system by mooring ropes, and the fixed mooring system of the net cage is used for fixing the floating rope frame in the sea areas for aquaculture by anchors, wood piles, anchor ropes, floating balls and floating ball connecting ropes.