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1302 results about "Scratching" patented technology

Scratching, sometimes referred to as scrubbing, is a DJ and turntablist technique of moving a vinyl record back and forth on a turntable to produce percussive or rhythmic sounds. A crossfader on a DJ mixer may be used to fade between two records simultaneously.

Micron-nano scale in-situ nano indentation and scratching test system

InactiveCN101876609AThe test method is accuratePrecision equipmentUsing optical meansInvestigating material hardnessImage resolutionEngineering
The invention relates to a micron-nano scale in-situ nano indentation and scratching test system which integrates driving, precise loading and signal detection, micron-nano scale mechanics performance testing, ultraprecise scratching processing and high resolution in-situ observing as one. The system is mainly composed of a precise positioning platform at X-axis and Y-axis directions, a precise linear positioning platform at Z-axis direction, a precise indentation driving unit, a load signal and displacement signal detection unit and a high resolution digital microscopic imaging system for observing and storing material deformation and damage conditions in the test process. The precise positioning platform at the X-axis and Y-axis directions is assembled on a base, the precise linear positioning platform at the Z-axis direction is assembled on a side plate, the precise indentation driving unit, a precise mechanical sensor for detecting the indentation material pressure of a diamond tool head and a precise displacement sensor for detecting the indentation depth of the diamond tool head to along the Z-axis direction are assembled on the precise linear positioning platform at the Z-axis direction, and the high resolution digital microscopic imaging system is assembled on a beam.
Owner:赵宏伟

Optical diffusion film and preparation method thereof

The invention discloses an optical diffusion film which comprises a transparent platy optical substrate as well as an optical diffusion layer and a diffusion anti-bonding layer which are formed on the two surfaces of the optical substrate, wherein the optical diffusion layer is coating liquid prepared by mixing the following materials by weight parts: 10-30 parts of adhesives, 10-30 parts of diffusion particles, 1-5 parts of cross-linking agents, 0.5-3 parts of diffusion agents and 40-70 parts of diluents, and the coating liquid is fixed on the surface of the optical substrate and dried to be cured into a film; the diffusion anti-bonding layer is coating liquid which is prepared by mixing the following materials by weights: 30-60 parts of adhesives, 0.5-5 parts of diffusion particles, 0.5-5 parts of antistatic agents, 1-10 parts of cross-linking agents and 30-60 parts of diluents, and the coating liquid is fixed on the surface of the optical substrate and is dried to be cured into a film. The adhesives comprise polyacrylate polyalcohol and polyester polyol; the diffusioin particles are high polymer resin microbeads; the cross-linking agents are fatty polyisocyanate; and the diluents have high volatilization speed, medium volatilization speed and low volatilization speed. The optical diffusion film is good in the coordination of film coating hardness, transparency and scratching resistance.
Owner:HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY

High performance wallpaper base paper pulp and process for producing wallpaper base paper using the same

The invention discloses a high-performance wallpaper base paper pulp and a process which uses the pulp to produce wallpaper base paper, the base paper pulp is formed by sizing agent and accessory, the sizing agent is formed by the combination of coniferous bleaching chemical wood pulp, latifoliate bleaching chemical wood pulp and coniferous bleaching chemical thermomechanical pulp; and the accessory is formed by the combination of intra-pulp starch, filling, intra-pulp sizing agent, surface sizing agent, wet strength agent and retention aid. By adopting the invention, bubble points generated by the wallpaper base paper in the PVC scratching and painting process can be greatly reduced, and the bonding strength between a PVC coating and the paper surface and the stability of the paper in wet deformation are improved, thus overcoming the shortcoming of the prior art, simultaneously, reducing the production cost and industrial pollution of the wallpaper base paper. The wallpaper base paper produced by the process has high dry and wet strength, good dimension stability, good loose depth, high opacity, and difficult yellowing. The used sizing agent is mainly high-yield APMP, forest resources are saved, pollution load is low, and the invention has better generalization significant to the current situation that the cost of domestic current paper making industry remains high, forest resources are lacked, and the pollution of paper making industry is severe.
Owner:ZHEJIANG WINBON SPECIALTY PAPER +1

Highly-abrasion-resistant anti-scratching modified PC (polycarbonate) material and preparation method thereof

InactiveCN102391634AIncrease wear resistance and scratch resistanceAvoid oxidative degradationPolymer scienceAntioxidant
The invention relates to the field of high polymer materials and particularly relates to a highly-abrasion-resistant anti-scratching modified PC (polycarbonate) material and a preparation method thereof. The high-abrasion-resistant anti-scratching modified PC material comprises the following raw materials in parts by weight: 65-90 parts of PC, 10-35 parts of abrasion-resistant anti-scratching auxiliary agent, 0.5-1.5 parts of coupling agent, 1-10 parts of toughening agent, 0.1-1 part of antioxidant and 0.1-1 part of lubricating agent. According to the invention, PC is used as a substrate material, and composite systems such as the abrasion-resistant anti-scratching auxiliary agent, the lubricating agent, other auxiliary agents and the like are added, so that the abrasion-resistant anti-scratching property of the material is improved; the abrasion-resistant anti-scratching modified PC material is prepared by adopting high-temperature smelting, mixing and extruding modes in a twin-screw extruder, thus the hardness and abrasion-resistant anti-scratching effect of PC are improved; and modified PC has the advantages of high rigidity, high toughness, high flowability, high heat resistance, bright surface and the like.
Owner:GUANGDONG JANUS SMART GRP CO LTD

Aluminium-alloy welding wire and preparation method thereof

The invention relates to the technical field of alloy, in particular to an aluminium-alloy welding wire and a preparation method thereof. The welding wire comprises the following components in percentage by weight: 12.5-12.8% of Si, 0.38-1.03% of Mg, less than or equal to 0.4% of Fe and the balance of Al. The preparation method comprises the following steps of: batching, smelting, casting, extruding, drawing, annealing, surface treatment and package. The invention has the advantages that pure silicon is added in the smelting process, a full-titanium smelting tool is used, and no any alterant is added; a continuous uniformization process is adopted before extrusion, and the long-time insulation and the heating process before extrusion in the traditional uniformization are eliminated, so that the time and the energy are greatly saved, and the production cost is reduced; the surface treatment is carried out on the welding wire by adopting a chemical method, so that oil stains are thoroughly removed, the surface scratching is avoided, and the generation of new oxidation films is prevented; after being welded by the welding wire, the mechanical property of a joint is excellent; after heat treatment, the tensile strength of the joint is obviously improved and the joint has heat-treatable enhancing property.
Owner:NORTHEASTERN UNIV

Technology for producing citrus juice sac through peeling and capsule dressing removal of whole fruits

The invention discloses a technology for producing a citrus juice sac through the peeling and the capsule dressing removal of whole fruits. The technology comprises the following steps: 1, grinding the fruits or scratching peels; 2, blanching or carrying out compound enzyme processing; 3, carrying out peeling and capsule dressing removal of the whole fruits; 4, carrying out dispersion and impurity removal of the whole fruits; 5, blend-mixing; 6, disinfecting and killing enzymes; and 7, carrying out aseptic loading. According to the invention, fruit grinding or peel scratching preprocessing is adopted, a whole fruit enzyme method is adopted to peel and remove capsule dressings, a whole fruit improvement acid-alkali method is adopted to remove the capsule dressings, and a whole fruit dispersion method is adopted to produce the citrus juice sac which is used as a raw material for a citrus juice with fleshes. The technology of the invention allows labor force to be saved by above 25%, an acid-alkali or enzyme preparation and water for the capsule dressing removal to be saved by about 30%, a raw material loss rate to be reduced by about 15%, and a juice sac breakage rate to be reduced by about 10%, so the production cost can be saved by about 20%, and the juice sac quality can be improved.
Owner:CITRUS RES INST OF CHINESE ACAD OF AGRI SCI
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