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148results about How to "Anti-wear" patented technology

Slurry feed line steel with good low-temperature toughness and manufacturing method thereof

The invention provides slurry feed line steel with good low-temperature toughness and a manufacturing method thereof. The slurry feed line steel with good low-temperature toughness comprises 0.10 to 0.20% of C, 0.10 to 0.30% of Si, 0.80 to 1.50% of Mn, less than or equal to 0.018% of P, less than or equal to 0.004% of S, 0.010 to 0.035% of Ti, 0.02 to 0.05% of Als, less than or equal to 0.006% of N and the balance Fe. The manufacturing method of the slurry feed line steel with good low-temperature toughness comprises smelting, continuous casting and hot rolling. When a plate blank is heated to a temperature of 1160 to 1300 DEG C, the plate blank is subjected to a first-stage controlled rolling and a second-stage controlled rolling, wherein an initial temperature of the first-stage controlled rolling is in a range of 1130 to 1200 DEG C; an end temperature of the first-stage controlled rolling is above 1020 DEG C; an initial temperature of the second-stage controlled rolling is below 1000 DEG C; and an end temperature of the second-stage controlled rolling is in a range of 780 to 880 DEG C. The plate blank subjected to the first-stage controlled rolling and the second-stage controlled rolling is cooled at a speed of 5 to 20 DEG C per second and then is reeled at a temperature of 550 to 680 DEG C. The manufacturing method of the slurry feed line steel with good low-temperature toughness has the advantages that the slurry feed line steel with good low-temperature toughness does not contain precious alloy elements such as Nb, Mo, V and the like so that an alloy cost is low; S content and P content are controlled strictly so that good low-temperature toughness of steel is guaranteed effectively; and a controlled rolling and controlled cooling technology is utilized for crystal particle refinement so that a pearlite microstructure is uniformly distributed and good steel strength matching with toughness is guaranteed.
Owner:ANGANG STEEL CO LTD

Anti-abrasion and anti-corrosion composite functional coating layer

The invention belongs to the technical field of thermal-sprayed coating layers and relates to a composite functional coating layer capable of resisting abrasion and corrosion. The coating layer consists of the chemical components such as NiCrAlY alloy powder, metallurgical TiC powder and rare-earth oxide La2O3 powder, wherein the adding amount of the NiCrAlY alloy powder accounts for 49.5-80 percent of the weight of the powder of the whole coating layer; the adding amount of the metallurgical TiC powder accounts for 19.5-50 percent of the weight of the materials of the coating layer; the adding amount of the rare-earth oxide La2O3 powder accounts for 0.5-5 percent of the weight of the materials of the coating layer. Metallurgical combination is realized, so that the bonding strength of the coating layer is high, and organization is compact; therefore, compared with the common coating layer, the coating layer has the advantages that the abrasion resistance and the corrosion resistance are greatly improved. The coating layer disclosed by the invention is processed by a plasma composite spraying technology such as laser and atmosphere instead of an independent thermal spraying technology; in order to fulfill the aim of realizing coating layer metallurgical combination, due to the metallurgical combination, the coating layer combining strength can be improved, and the high compactness of the organization of the coating layer is realized; due to the high combining strength and the low porosity, the coating layer is long in service life and high in abrasion resistance and corrosion resistance.
Owner:BEIJING AERONAUTICAL MFG TECH RES INST

Composite board and preparation method thereof

The invention discloses a composite board, comprising a composite layer, an upper adhesive layer and a lower adhesive layer respectively bonded with the upper and lower surfaces of the composite layerto form an integral body with the composite layer, and a functional surface layer bonded with the upper surface of the upper adhesive layer to form an integral body with the upper adhesive layer. According to the invention, the upper adhesive layer and the lower adhesive layer respectively cover the upper and lower surfaces of the composite layer, and the functional surface layer is laminated with the upper surface of the upper adhesive layer via a film spraying method, so the prepared composite board has excellent impact resistance and the advantages of high mechanical strength, ageing resistance, scratch resistance, etc.; meanwhile, the functional surface layer endows the composite board with unique appearance and functionality; moreover, since one part of the upper adhesive layer is embedded into the upper surface of the composite layer and another part of the upper adhesive layer is embedded into the lower surface of the functional surface layer, such mechanical bonding can improve peeling strength between the functional surface layer and the composite layer; and the lower adhesive layer may be embedded into the lower surface of the composite layer so as to realize bonding between the composite board and other materials.
Owner:GUANGZHOU KINGFA CARBON FIBER NEW MATERIALS DEV

Multi-functional diamond disk material conveying machine

The invention discloses a multi-functional diamond disk material conveying machine, and relates to the technical field of designing and manufacturing of conveying machinery. The multi-functional diamond disk material conveying machine consists of a drive assembly, a bracket frame, a rail, a transmission chain, diamond disks, material bearing frames, a chain adjusting assembly, a shaft, a bearing seat, a feed and discharge hopper, a bearing, a band-edge roller, a protective plate, a pin, a positioning component, a wheel fixing component and a base plate, wherein the diamond disks are installedin the mode of completely covering small uplift bodies by large uplift bodies on the connection positions of two adjacent diamond disks; a conveying transmission mode is bearing and roller transmission; each diamond disk consists of a material blocking plate and a material loading panel, the material bearing frames are arranged on the diamond disks, and the material loading panel is provided withthree construction modes. The material conveying machine has the technical characteristics of wear resistance, heat resistance, jamming resistance, can convey material leakage resistance and strong adaptability, powder materials, bag materials, block materials whose particle sizes are less than 300 mm and multiple materials whose temperature is within 500 DEG C, has the minimum conveying capacityof 10 T/h, and the maximum conveying capacity or over 2000 T/h.
Owner:夏才明

Low-temperature sintering high-heat conduction ceramic paint suitable for metal base material and preparation method and application thereof

The invention discloses a low-temperature sintering high-heat conduction ceramic paint suitable for metal base material and a preparation method and an application thereof. The paint comprises the following raw materials: low-temperature molten glass powder, iron oxide red, copper-chrome black, cerium dioxide, boron nitride, iolite micro powder, alumina micro powder, chromium sesquioxide micro powder, 20-50% of silicon aluminium sol, 0.5-3% of an auxiliary agent, and the balance of water. The method comprises the following steps: a metal matrix is processed, then the surface of the metal matrix is uniformly coated with a paint and dried in shade; and the coated metal matrix is heated at the temperature of 650-900 DEG C to form the low-temperature sintering high-heat conduction ceramic paint. The paint has the advantages of easy acquisition of the raw materials and low cost, is tightly combined with the metal matrix, has effective high temperature oxidation resistance, acid corrosion resistance and abrasion resisting effects of a heating furnace flue heat exchanger on a metal heat exchanger, ceramic coating surface is smooth and clean, slag buildup of the heat exchanger is effectively reduced, the service life of the metal heat exchanger is prolonged, and the heat exchange efficiency effect is increased.
Owner:武汉钢铁有限公司

High-performance fully-synthetic wind-power gear oil and preparation method thereof

The invention discloses high-performance fully-synthetic wind power gear oil. The wind power gear oil comprises base oil and additives, wherein the base oil is polyol ester, and the additives comprisean antioxidant, a demulsifying agent, a pour point depressant, an antirust agent, an extreme-pressure anti-wear agent, a detergent dispersant, a defoaming agent and a metal deactivator. The inventionalso provides a preparation method of the wind power gear oil. The preparation method comprises the following steps: carrying out an esterification reaction on polyol monoester and fatty acid to synthesize polyol ester, blending the polyol ester to obtain the base oil, adding the additives into the base oil, and conducting mixing to obtain the environment-friendly fully-synthetic wind power gearoil. According to the invention, the wind power gear oil has good compatibility with various additives and can be widely applied to a wind power gear oil tank; the gear oil has very long service lifeeven under severe working conditions; the high viscosity index and good shear stability of the gear oil are guaranteed; the lubricating requirement of a gear box used in a very wide viscosity range ismet; pitting corrosion can be effectively avoided or inhibited; and normal operation of a large heavy-duty mechanical gear transmission device is guaranteed.
Owner:上海中孚油品集团有限公司

Steel wire rope rear deformer

The invention discloses a steel wire rope rear deformer. An upper pressure plate is fixed on a base. A lower pressure plate and the upper pressure plate are arranged in parallel on the base. The opposite lateral surfaces of the upper and lower pressure plates are respectively provided with a row of U-shaped brackets and the two rows of U-shaped brackets are arranged up and down in an adjacent staggered mode. Deformation pulleys are arranged in grooves of the U-shaped brackets and freely rotate. A regulating device drives the lower pressure plate to move up and down along the base. The regulating device comprises a bracket, a regulating rod and a fixed frame. The fixed frame is fixed on the outer lateral surface of the lower pressure plate. The bracket is fixed on the base. The upper end of the bracket is provided with a screwed hole. The regulating rod passes through the screwed hole on the bracket. One end of the regulating rod is arranged in the fixed frame and the other end of the regulating rod is provided with a rotating handle. The regulating rod is vertical to the lower pressure plate. The position on the regulating rod, which corresponds to the bracket, is provided with an external screw thread which is matched with the screwed hole. The steel wire rope rear deformer disclosed by the invention has a simple structure, is convenient to regulate and has wear resistance and deformation resistance. Moreover, a steel wire rope for decoration cannot be scratched.
Owner:江苏宏泰不锈钢丝绳有限公司

Preparation of dimer acid lanthanum extreme pressure anti-wear additive and energy-saving anti-wear hydraulic oil including dimer acid lanthanum extreme pressure anti-wear additive

The invention belongs to the field of hydraulic oil and particularly relates to preparation of a dimer acid lanthanum extreme pressure anti-wear additive and an energy-saving anti-wear hydraulic oil including the dimer acid lanthanum extreme pressure anti-wear additive. The preparation of the dimer acid lanthanum extreme pressure anti-wear additive comprises the steps that a La(NO3)3 solution is dropwise added into a specially-made alkali solution, and after a complete reaction, standing filtering and drying are carried out for use. The energy-saving anti-wear hydraulic oil is prepared from basic oil, the dimer acid lanthanum extreme pressure anti-wear additive, an antioxidant, an anti-rusting agent, a viscosity index improving agent, a pour point reducer and a defoaming agent. Carboxyl of dimer acid lanthanum (the dimer acid lanthanum extreme pressure anti-wear additive) can be effectively adsorbed to the surface of a friction pair, and the friction coefficient of the surface of the friction pair is reduced; in the friction process, rare earth elements rub the surface to diffuse to a matrix to form a permeation layer, the anti-wear property and the friction coefficient of the material surface are improved, and the anti-wear effect and the energy-saving effect are achieved; the dimer acid lanthanum extreme pressure anti-wear additive has a good anti-wear property, a good anti-rusting property, a good anti-corrosion property and the like; the rare earth compound dimer acid lanthanum is applied to hydraulic oil, and thus the hydraulic oil can have the excellent properties.
Owner:SHANDONG YUANGEN PETROLEUM CHEM

Transmission belt material and preparation method thereof

The invention discloses a transmission belt material. A formula of the material comprises the following components in parts by mass: 10 to 25 parts of natural rubber, 25 to 40 parts of styrene butadiene rubber, 60 to 75 parts of nitrile rubber, 1 to 4 parts of sulfur, 5 to 8 parts of plasticizer, 2 to 5 parts of bonding agent, 7 to 11 parts of zinc oxide, 2 to 4 parts of anti-aging agent RD, 1.5 to 3 parts of anti-aging agent NBC, 0.5 to 2 parts of anti-aging agent DNP, 15 to 18 parts of carbon black, 5 to 6 parts of white carbon black, 1 to 3 parts of N-cyclohexyl-2-benzothiazolesulfenamide, 1 to 2 parts of 2,2'-dibenzothiazyl disulfide, 3 to 5 parts of stearic acid, 10 to 11 parts of coumatone resin, and 3.5 to 5 parts of pine tar. A preparation method comprises the following steps: (1), putting the natural rubber, the styrene butadiene rubber and the nitrile rubber into a banbury mixer, heating to the temperature of 110 to 120 DEG C; (2), adding half of the carbon black and rising the temperature to be 145 to 155 DEG C for milling for 4 to 6min, sequentially adding the zinc oxide, the white carbon black, the coumatone resin, an accelerator and the anti-aging agents for milling; (3), adding the rest carbon black, the plasticizer, the sulfur and the pine tar into a open mill for carrying out milling for 6 to 9min to obtain masterbatch; (4), putting the masterbatch into a vulcanizing mold for carrying out vulcanization treatment.
Owner:ANYANG INST OF TECH
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