Patents
Literature

158results about How to "Simple processing" patented technology

Plastering mortar using high-volume slag and preparation method thereof

The invention relates to a plastering mortar using high-volume slag and a preparation method thereof. Every cubic meter of plastering mortar using the high-volume slag comprises the following components in percentage by mass: 16 to 30 percent of ordinary Portland cement, 5 to 10 percent of pulverized fuel ash, 30 to 70 percent of sand, 0 to 30 percent of slag and 1.2 to 3.0 percent of plastering mortar master batch. The preparation method comprises the following steps of: firstly, drying the slag and machine-made river sand respectively until the water content is less than 0.2 percent, sieving the dried slag and machine-made river sand through a 3-millimeter sieve to remove large particles of more than 3 millimeters and feeding the slag and the machine-made river sand into a sand cabin for later use; secondly, metering the selected plastering mortar master batch serving as a raw material according to a mass proportion, fully mixing the materials in a mixing machine for 4 to 6 minutes and feeding the mixture into an additive cabin for later use; and lastly, metering the plastering mortar components according to the mass proportion in a formula and mixing the components in the mixing machine for 3 to 5 minutes so as to obtain a finished product. The slag is used instead of a part of river sand and machine-made sand, so that cost is low, environmental pollution is reduced, and social and economic benefits are remarkable.
Owner:JIANGSU NIGAO SCI & TECH +1

Positive extrusion test method for plastic forming friction coefficient and friction factor

The invention relates to a positive extrusion test method for a plastic forming friction coefficient and a friction factor. The positive extrusion test method comprises the following steps of 1) preparing a tensile specimen by using a to-be-tested material and measuring a yield stress Y at a to-be-tested temperature; 2) preparing a cone-shaped mold with a cone angle [theta] and the diameter of a large end port and a small end port being D0 and D respectively, by using the same material to the to-be-tested mold; 3) preparing a cylinder specimen with the diameter of d by using the to-be-tested material, wherein d value is between D0 and Dl; 4) extruding a specimen coated by a lubricating agent downward in the cone-shaped mold on a material testing machine at a constant speed and recording a value when extrusion load F starts to be stable; 5) calculating the friction coefficient and the friction factor according to formulas disclosed by the invention; and 6) repeating the above steps for 3-5 times, and taking an average value as a result. The positive extrusion test method is in no need of measuring geometrical shapes after a test specimen is deformed, has no abnormal deformations such as compressive instability and the like, is simple in specimen process and needs no theoretical calibration curve. Besides, the positive extrusion test method has high test precision, convenient operation and high efficiency, and can be used for tests at various temperatures and speed conditions.
Owner:CHONGQING UNIV

Small-space LED display module and manufacturing method thereof

InactiveCN109841164Aeasy to cleanSimple processing
The invention provides a small-space LED display module and a manufacturing method of the small-space LED display module. The small-space LED display module comprises a mounting base plate, an LED lamp panel and protective colloid, wherein the LED lamp panel comprises a circuit board and a plurality of LEDs arranged on the circuit board at intervals, the circuit board is arranged on the surface ofone side of the mounting base plate, and the LEDs are arranged on the surface of one side, far away from the mounting base plate, of the circuit board; and the protective colloid is arranged in gapsamong the LEDs, and the surface of one side, far away from the circuit board, of the protective colloid is level with the surfaces of one sides, far away from the circuit board, of the LEDs. The protective colloid can play a very good protection role on the LEDs, so that the problems of knocking on the LEDs and the breakage of the LEDs due to the excessive humidity are effectively solved. Meanwhile, the surface of one side, far away from the circuit board, of the protective colloid is level with the surfaces of one sides, far away from the circuit board, of the LEDs, so that the cleaning for the surface of the LED lamp panel is easy. In addition, the processing mode of the protective colloid is simple, the processing is convenient and reliable, and the method is satiable for the industriallarge-scale application.
Owner:LEYARD

Process for preparing metal silver micropattern on polymeric material surface

InactiveCN102312227AUniform functionalizationSimple processing
The invention provides a process for preparing a metal silver micropattern on a polymeric material surface. High-energy ultraviolet light is employed to radiate on different polymeric substrate material surfaces in order to modify the polymeric substrate material surfaces, wherein a radiation time is controlled at 10-20 min; meanwhile, during the ultraviolet light radiation process, photographic masks are covered on polymeric substrate material surfaces to realize micro area modification on polymeric substrate material surfaces; then a silver coating solution is employed to carry out a selective silver coating on polymeric substrate material surfaces. According to the invention, ultraviolet light is directly employed to radiate on polymeric material surfaces in order to modify material surfaces and generate functional groups that are conducive to sedimentation of metal silver. Compared with a process that a monomolecular film is grafted on a substrate material surface and treated by a sensitizer and an activator successively, the process of the invention guarantees a uniform functionalization on the substrate material surface and substantially simplify the substrate material surface treatment technology; besides, silver coating patterning is realized while keeping high fidelity of the silver coating pattern.
Owner:WUHAN UNIV OF TECH

Processing method of composite fabric

InactiveCN101844425Ahigh strengthSimple processing
The invention mainly discloses a processing method of a composite fabric, which is characterized in that a hot melt non-woven fabric is prepared, and an oil agent is used for softening and lubricating treatment; cloth strips with the width of 5mm-2cm are cut out and pass through three circular yarn guide rings, and the cloth strips which are close together by the yarn guide rings are wound on a bobbin; the fineness of the cloth strips is between 100tex and 2000tex, and the cloth strips are set to form silk threads by setting; the silk threads are warped, re-beamed, drawn in and tied by a weaving machine to form warp yarns, the silk threads are wound on the bobbin to be taken as weft yarns, accordingly, the fabrics are weaved. The weaved fabrics are placed at the upper layer, and meltblownnonwoven polypropylene fabrics are added in the middle, and common thin woven or knitted fabrics are placed at the lower layer, which are compounded and laminated by a laminating machine to form composite fabrics. In the three-layer materials of the product, the surface layer has the characteristics of rough and wear resistant styles, the middle layer has sound-absorbing, anti-dust and heat insulation effects, and the inner layer has skidproof and enhancement effects and the like. The product can be applied to the various fields of curtains, tablecloths, chair covers, carpets and the like.
Owner:绍兴叶鹰纺化有限公司

Reciprocating-piston compressor body

ActiveCN101338743ASimple processinglow cost
The present invention discloses a reciprocating compressor block, which comprises a basal body, a first main bearing hole, a second main bearing hole, one or two horizontally arranged cylinder sleeves and a slideway; wherein, the basal body is a cavity; both the first and the second main bearing holes are cylindrical sleeves; the axes of the bearing hole cavities of the cylindrical sleeves are on the same line, and the cylindrical sleeves are symmetrically arranged on the front and the rear sides of the basal body and communicated with each other through a throughhole on the basal body. When two cylinder sleeves are adopted, the two cylinder sleeves are cylindrical sleeves, the axes of the cylinder sleeve cavities of the cylindrical sleeves are on the same line, the cylindrical sleeves are arranged on the left and the right sides of the basal body, and the axes of the bearing hole cavities are vertically intersected with the axes of the cylinder sleeve cavities on the same plane. The slideway is a flat and long throughhole which is positioned on the top of the basal body, the central plane of the slideway on a width direction is parallel to the axes of the cylinder sleeve cavities and is spaced from the axes of the cylinder sleeve cavities for a preset distance on the vertical direction. The reciprocating compressor block is applicable to a compressor adopting a crank-slider mechanism.
Owner:BEIJING SINOCEP ENGINE TECH

Hydraulic-disassembly cylindrical interference connection structure and assembly/disassembly method

The invention relates to a cylindrical interference connection structure and an assembly/disassembly method, in particular to a hydraulic-disassembly cylindrical interference connection structure and an assembly/disassembly method, aiming to solve such technical problems that existing cylindrical interference connection is not suitable for repeated disassembly and that a large-sized press machine is required for disassembly. The hydraulic-disassembly cylindrical interference connection structure comprises an accommodating member and an accommodated member, wherein the accommodating member is of stepped inner cylindrical hole form, the accommodated member is a stepped outer cylindrical shaft matching with the accommodating member in shape, the spacing between the matching shoulder end faces of the accommodating member and the accommodated member forms a hydraulic oil cavity, the accommodating member is provided with a disassembly hydraulic oil inlet hole communicating with the hydraulic oil cavity, and a lubricating oil way is formed at one side of the matching shoulder end face of the accommodating or accommodated member. In assembly, a temperature difference method is adopted; and in hydraulic disassembly, a high pressure oil pump supplies high pressure lubricating oil to between the matching surfaces of the accommodating member and the accommodated member to form an oil film, high pressure hydraulic oil is pumped into the hydraulic oil cavity, and pressure intensity of the high pressure hydraulic oil acts on the stepped cylindrical shaft and hole shoulder end faces to apply axial hydraulic thrust in opposite directions to the accommodating member and the accommodated member, to enable the accommodating member and the accommodated member to slide and further separate from each other. The inventive structure is suitable for connection between a large-sized shaft coupling and a shaft.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD

Plant-oil-based asphalt modifier, modified asphalt containing modifier and preparation of plant-oil-based asphalt modifier

ActiveCN106146775Apromote swellingSimple processing
The invention discloses a plant-oil-based polyurethane modifier, modified asphalt and a preparation method of the plant-oil-based asphalt modifier. According to the plant-oil-based polyurethane modifier, dehydrated plant oil polyalcohol replaces petroleum-based polyalcohol to serve as a polyhydroxy component, the polyhydroxy component is added into a polyisocyanate component at the temperature of 25-35 DEG C, the index R of isocyanate ranges from 1.4 to 1.8, the temperature is raised to 40-50 DEG C after the polyhydroxy component is added, a heat preservation reaction is carried out for 1.5-3 h, a solvent with the volume accounting for 5-50% of the total volume of the reactant is added in the reaction process to adjust the system viscosity, and a series of plant-oil-based polyurethane prepolymers with different condensation degrees are prepared. The synthesis degree of the prepolymers is controlled, the prepolymers are added into matrix asphalt, and the modified asphalt containing plant-oil-based polyurethane is prepared. The asphalt modifier is low in viscosity and good in fluidity, and is easily dispersed in asphalt, the temperature needed by the shear process is low, time is short, the prepared plant-oil-based polyurethane modifier is environmentally friendly and renewable, and the obtained modifier asphalt is simple in ingredient and excellent in high and low temperature performance.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT

Function-shared three-composite-layer laminated flameproof fabric, preparation technology and application

ActiveCN102785432AReasonable functionSimple processing
The invention relates to a function-shared three-composite-layer laminated flameproof fabric, a preparation technology and application. The flameproof fabric consists of a reflection heat-insulation layer which faces to a flame and is mainly formed by a high-reflectivity metal foil, a heat-consumption temperature limiting layer which is intermediately arranged and is mainly formed by a high-heat-absorptivity energy-transduction phase-change material, and a heat-insulation comfortable layer which touches a human body and is mainly formed by a high-heat-insulation and high-heat-reflectivity composite film. The reflection heat-insulation layer can reflect and insulate most heat radiated by an open-fire strong heat flow environment; the heat-consumption temperature limiting layer cuts off temperature, absorbs heat and consumes energy through the phase change of a phase-change material; and the heat-insulation comfortable layer realizes heat insulation and comfort effects through heat insulation and reflection of a multilayer composite film and a lining flameproof comfortable base fabric. The reflection heat-insulation layer, the heat-consumption temperature limiting layer and the heat-insulation comfortable layer are composite layers and are sewn and bonded in a fully-closed manner to form the composite flameproof fabric. The natural thickness of the flameproof fabric is 5-15mm, the compact thickness of the flameproof fabric is 3-10mm and the weight per square meter of the flameproof fabric is 450-1500g/m<2>. The flameproof fabric can be used for human body protection and environmental heat insulation of high-radiated-heat special occasions such as firefighting, military, exploration and industry.
Owner:DONGHUA UNIV

Fuel cell membrane electrode preparation process and hot-pressing mould thereof

PendingCN109301293ASimple processingReduce replacement costs
The invention belongs to the field of fuel cell membrane electrode manufacturing and relates to a fuel cell membrane electrode preparation process and a hot-pressing mould thereof. The hot-pressing mould thereof comprises a bottom plate, a lower positioning plate, an upper positioning plate, a positioning frame, a pressure block, a movable cutting die bottom plate, a lower positioning plate, an initial membrane electrode polyester frame, an upper positioning plate and a pressure block in sequential arrangement. The pressure block is positioned in a positioning frame through hole in the centerof the positioning frame; a first gas diffusion layer and a second gas diffusion layer are positioned in a lower positioning plate through hole and an upper positioning plate through hole respectively; the cutting die is formed by inlaying a bladed into a plate, and when the cutting die moves downwards, the blade penetrates a gap between the positioning frame through hole and the pressure block tobe pressed on the upper positioning plate. By positioning pins for fixing a membrane electrode prone to distortion and deformation, displacement in hot pressing is avoided; by design of the blade shape of the cutting die and a groove shape of the bottom plate, membrane electrode components in any shapes can be manufactured; by use of the positioning plates instead of shallow grooves for fixing the gas diffusion layers, simplicity in processing and low replacement cost are realized.
Owner:NANJING UNIV +2
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products