50results about How to "Same service life" patented technology

The invention relates to a preparation method of ceramic materials; the raw materials used in the method comprises alumina powder, titanium oxide powder, synthetic material of aluminium titanate and stabilizing agents, wherein, the stabilizing agents comprise magnesium oxide, silica dioxide, ferric oxide, chromium dioxide and zirconium oxide. The conditions of the preparation process are as follows: firstly, the raw material and water carry out ball milling and pulping by a wet method; secondly, the slurry is granulated and dried into powder with the water content to be less than 2 percent; thirdly, isostatic pressing molding is carried out; fourthly, the powder is sintered into a lift tube of aluminium titanate ceramics under the conditions that the sintering temperature is 1,480 to 1,550 DEG C, the sintering time is 20 to 30 hours and the sintering atmosphere is oxidizing atmosphere; wherein, alumina powder, titanium oxide powder, stabilizing agents and water carry out ball milling and pulping by the wet method and granulation to prepare particle size, then the synthetic material of aluminium titanate is prepared by sintering. The product prepared by the method is characterized by low price, non-infiltration of alumina melt, no reaction, high intensity, strong thermal shock resistant capability, no slag during the using process, long service life, etc.

A production process of an iron-removing filter comprises the major machining tools and procedures of a sealing head, a barrel, a filtering element bushing, a flange C, a pore plate, a pipe flange, component assembly, product assembly and pressure test. A product produced with the process is suitable for matched equipment of a water treatment system. The product is simple in machining process, is low in cost, is the same as products of the same type in service life, but is one third lower than the price of the conventional product, and meets user demands. The product quality is consistent with the standards of GB150 Steel Pressure Vessel and Safety Monitoring Specification for Pressure Vessel, JB2932 Manufacturing Technical Conditions for Water Treatment Equipment and SDDZ037 Manufacturing Quality for Power Plant Water Treatment Equipment. The problems of long delivery period and high price for general production enterprises and users to bear due to the adoption of a composite plate as a major material in the conventional iron-removing filter are solved, and great contribution is made to the prevention of environmental pollution.

The invention relates to an expanding and extruding connection method for mechanical connection of plastic pipes, specifically comprising the following steps of: (1) expanding the inner diameter of each plastic pipe connection part by 10-25 percent by using a pipe expander and utilizing the stretching ductility of the plastic pipes; and (2) connecting the plastic pipes by adopting a plastic expanding and extruding connector comprising a plastic connector and a plastic nut, sleeving the plastic nut on the plastic pipe, inserting an insertion part of the plastic connector to a connection part of the plastic pipes, fastening the plastic nut on an outer thread of the plastic connector, enabling ribbed edges to clamp the inner wall of the connection part of the plastic pipes, and storing an extruded deformation part of the plastic pipeline into a concave ring. The expanding and extruding connection method of the invention is convenient, concise and reliable to connect various plastic pipelines.

A punch stripper is adapted to be fastened to a punch retainer of a press tool, and to retain a work piece as the piece is being machined by a punch. The punch stripper includes a punch stripper piston and a pressure chamber adapted to spring-load the punch stripper piston. The pressure chamber is at least partially defined by a gap between an inner sleeve and an outer sleeve. The punch stripper piston has a portion that is axially displaceable in the gap.

A grid plate for a lead acid storage battery comprising a frame section having a pair of quadrangular contour shape, and longitudinal grid strands and lateral grid strands that form a grid inside the frame section. The longitudinal grid strands and lateral grid strands are composed of thick strands of smaller thickness than the frame section, and thin strands of smaller width and thickness than the thick strands. The thick strands and thin strands are arranged so that the strands adjacent to the thick strands are thin strands, and space is reliably provided for facilitating the flow of active material to the sides of the thick strands. The two ends of the thick strands in the thickness direction are positioned further inward from the two end faces of the frame section in the thickness direction, and the end portions of one end side of the thin strands in the thickness direction are positioned in positions offset to one end side of the thick strands in the thickness direction, whereby the active material is readily packed into the reverse surface side of the grid plate.

The invention discloses an ultrahigh-voltage submarine cable flexible joint. The flexible joint comprises a conductor welding segment, a conductor shielding recovery layer, an insulation recovery layer, an insulation shielding recovery layer, a metal sheath recovery layer and an outer sheath recovery layer. The conductor welding segment is arranged at the conductor end parts of the two sections ofsubmarine cables to connect the two sections of submarine cable conductors to form a flexible joint conductor part, the conductor shielding recovery layer, the insulation recovery layer, the insulation shielding recovery layer, the metal sheath recovery layer and the outer sheath recovery layer sequentially arranged on the outer side of the conductor part in a surrounding mode, and the conductorshielding recovery layer, and respectively correspond to the conductor shielding layers, the insulation layers, the insulation shielding layers, the metal sheaths and the outer sheaths of the two section of the cables to connect and form an integrated structure. The structural size of the flexible joint is close to that of a submarine cable body, the flexible joint has the same electrical performance, mechanical performance and bending performance as the submarine cable body, the service life of the flexible joint is prolonged, and meanwhile the manufacturing method of the flexible joint can be suitable for manufacturing molded line, compressed circle and split conductor submarine cable flexible joints.

The invention provides a dust removal device for a dustproof net. The device is arranged on the dustproof net, the dust removal device for the dustproof net is characterized by comprising a first brush, a second brush and a driving device, wherein the first brush penetrates through the two sides of the front side of the dustproof net, and the second brush penetrates through the two sides of the back side of the dustproof net; and brush bristles of the first brush and the brush bristles of the second brush are both in contact with the dust-proof net net surface; the driving device drives the first brush and the second brush to move along the dustproof net net surface. According to the device, the driving device is adopted to drive the two brushes to repeatedly brush from the two faces of the dustproof net to brush away the dust on the dustproof net.

The invention discloses a method for repairing propeller blades of a ship, and belongs to the field of maintenance and repair of main parts used on ships. For a worn blade, the worn part of the guideedge of the blade can be subjected to surfacing through gas welding, and the texture of a used welding wire material is required to be the same as the texture of the propeller, and then the surface ofthe surfacing position is polished. For a defective blade caused by being collided with a hard object, a slightly larger piece of casting material having the same texture as that of the propeller canbe cast in advance according to the shape of the defective part, then match working is conducted through a manual method, a suitable weld chamfer needs to be machined at the weld joint, and then manually welded by using oxygen-acetylene; and finally grinding and trimming are conducted so that the use efficiency of the propeller can be recovered. At the same time, the repairing method is simple and practical, and the repaired blade bodies have the same service life as original blade bodies.

Additive composition compositions intended to be mixed into bituminous conglomerates for road paving, comprising containing a thermoplastic polymer, a polymeric compound selected from the group consisting of polyvinylbutyral (PVB), polyethylacrylate (PEA) polymethylacrylate (PMA), polybutylacrilate (PBA), lignin and mixtures thereof, and graphene are disclosed. preferably wherein The graphene is contained in a quantity between 0.005 and 1% by weight based on the total weight of the composition. A bituminous conglomerate suitable for making a road paving, containing comprising aggregates, filler, bitumen and said the additive is also disclosed.

The invention discloses a single face baffle fixing support arranged on a 200 DEG C overhead heat supply pipeline and used for preventing a heat bridge from transferring heat. The problem that a heat bridge effect easily happens in an existing device is solved. An arc-shaped top face bracket (5) is placed inside a pit of a high-strength heat insulation novolac epoxy bracket (10), a glass wool insulating layer (9) is arranged between the outer side face of the arc-shaped top face bracket (5) and the inner side face of the high-strength heat insulation novolac epoxy bracket (10), a high-strength heat insulation novolac epoxy baffle (14) is placed on the side face of a pipeline support frame (16), an aluminum foil reflecting film is arranged between the high-strength heat insulation novolac epoxy baffle (14) and a steel single face baffle (12), and the steel single face baffle (12) is movably connected with the high-strength heat insulation novolac epoxy baffle (14) in an abutted mode. The single face baffle fixing support has the advantage that heat bridge loss between a heat transferring steel pipe and the pipeline support frame is cut off.

The invention relates to a crane cable, particularly a composition for a crane cable sheath. The thermoplastic elastomer for a crane cable sheath comprises the following components in parts by weight: 30-35 parts of PVC (polyvinyl chloride) resin, 8-10 parts of light calcium carbonate, 28-30 parts of TOTM (trioctyl trimellitate), 2-3 parts of DOS (dioctyl sebacate), 1-1.5 parts of epoxy soybean oil, 2-2.5 parts of environment-friendly calcium zinc stabilizer and 0.2-0.5 part of low-molecular polyethylene wax. The components are subjected to extrusion molding to obtain the cable sheath. The composition saves the cost, simplifies the technique, enhances the production efficiency, and satisfies the operational requirements of the customers.

The invention discloses a double-faced baffle fixing support arranged on a 200 DEG C overhead heat supply pipeline and used for preventing a heat bridge from transferring heat. The problem that a heat bridge effect easily happens in an existing device is solved. An arc-shaped top face bracket (5) is placed inside a pit of a high-strength heat insulation novolac epoxy bracket (10), a glass wool insulating layer (9) is arranged between the outer side face of the arc-shaped top face bracket (5) and the inner side face of the high-strength heat insulation novolac epoxy bracket (10), a calcium silicate hard insulation board (8) is placed on the pit bottom of the high-strength heat insulation novolac epoxy bracket (10) and the outer bottom of the arc-shaped top face bracket (5), an aluminum foil reflecting film is arranged between the high-strength heat insulation novolac epoxy baffle (14) and a steel double-faced baffle (12), and the steel double-faced baffle (12) is movably connected with the high-strength heat insulation novolac epoxy baffle (14) in an abutted mode. The double-faced baffle fixing support has the advantage that heat bridge loss between a heat transferring steel pipe and a pipeline support frame is cut off.

The invention discloses a heat preservation plate with reinforcing bars and a heat preservation structure construction method of the heat preservation plate with the reinforcing bars on the outer wall concrete part. The heat preservation plate with the reinforcing bars comprises a heat preservation plate body and reinforcement bar net pieces laid in the heat preservation plate; wherein nodes of the multiple reinforcement bar net pieces extend out of connection reinforcing bars. According to the heat preservation structure construction method of the heat preservation plate with the reinforcing bars on the outer wall concrete part, the outer wall concrete part comprises a concrete beam, a concrete shear wall, a construction outer wall balcony, the position of an outdoor air conditioner partition, the position of a bay window and the position of a parapet. During the construction process, the heat preservation plates with the reinforcing bars are connected in a groove and tongue mode, construction sealants are provided for assisting, and it is ensured that no water or slurry leaks in connection positions. According to the heat preservation plate with the reinforcing bars, self-strength, crack resistance and impact ductility of the heat preservation plate can be remarkably improved, and the heat preservation plate can bear certain vertical loads and horizontal loads besides bearing self gravity loads.

The invention provides a remote controller battery bin cloth strip mounting device and a mounting method thereof. The remote controller battery bin cloth strip mounting device comprises a battery bin, a cloth strip hole which is formed in the battery bin and used for mounting a cloth strip, and a circumferential rib part which is arranged at the periphery of the cloth strip hole, made of rubber and is used for fixing the cloth strip by hot ironing. According to the remote controller battery bin cloth strip mounting device, the circumferential rib part can be melted and used for well fixing the cloth strip in the remote controller battery bin; and the device is convenient for industrialization and low in cost, and has high efficiency and long service life.

The invention relates to a novel method for melting glass liquid through immersion and combustion on glass liquid by a jet pipe of a combustor. The method is characterized in that the jet pipe of the combustor is inserted into the glass liquid from an upper part of the glass liquid through a kiln crown, a breast wall or a pool wall, a gaseous fuel and a gas oxidizing agent are respectively injected into the glass liquid through the jet pipe of the combustor or mixed and then injected into the glass liquid, so that the gaseous fuel and the gas oxidizing agent are combusted in the glass liquid, the generated high-temperature gas stirs the glass liquid, and most heat is transferred to the glass liquid and a mixed batch. For preventing severe erosion of the bricks of the kiln crown and preventing usage life shortening, the kiln crown is designed as a continuously updated structure, the structure is characterized in that the bricks of the kiln crown are suspended by a hanging wheel for compositing a movable kiln horizontal suspended ceiling, the bricks are easily and horizontally moved with entire row on the kiln along a transverse direction; new supplementary bricks of the kiln crown are added in the horizontal suspended ceiling from one transverse side of the kiln crown and pushed to the other side, at the same time, the corroded old bricks are pushed from the other side and discharged; so that continuous update of the bricks of the kiln crown can be guaranteed.

The invention discloses a single face baffle fixing support arranged on a 150 DEG C overhead heat supply pipeline and used for preventing a heat bridge from transferring heat. The problem that a heat bridge effect easily happens in an existing device is solved. A steel single face baffle (12) is placed on the outer side wall of a heat transferring steel pipe (1), a pre-buried steel plate (11) is placed on the top face of a pipeline support frame (16), an arc-shaped bracket (4) and an arc-shaped top face bracket (5) are fixed on the outer side face of the bottom arc-shape of the heat transferring steel pipe (1), the arc-shaped top face bracket (5) is placed on a pit of a high-strength heat insulation epoxy resin bracket (10), a calcium silicate hard heat insulation board (8) is placed between the pit bottom of the high-strength heat insulation epoxy resin bracket (10) and the outer bottom of the arc-shaped top face bracket (5), a high-strength heat insulation epoxy resin baffle (14) is placed on the side face of the pipeline support frame (16), and the steel single face baffle (12) is connected with the high-strength heat insulation epoxy resin baffle (14) in an abutted mode. The service life of the support is the same with the service life of the heat transferring steel pipe.