99results about How to "No change in properties" patented technology

The invention relates to a novel passive targeting nano emulsion with skin whitening effect and a preparation method thereof. The invention uses a novel passive targeting transdermal delivery dosing system TDDS-nano emulsion as a carrier of a function component for whitening or lighting the skin, uses different physical and chemical properties, action mechanism and actual effect of each skin whitening function component, especially the action advantages of certain novel skin whitening function components, and provides skin whitening effect nano emulsion systems with two joint applications in morning and evening matched with each other. The two joint applied nano emulsion systems not only have minimum spherical grains, extremely even distribution of nano-scale grains, remarkable passive targeting function, good transdermal absorption and strong penetrability, but also have extremely even, exquisite, smooth and glossy texture of the nano emulsion, is quite comfortable after coating on the face or the skin, has no stimulus and good stability; and the nano is light yellow, beautiful in appearance, bright and transparent, clear and crystalline, has light opalescence, and is adhesive but not sticky, thick but not heavy, oily but not greasy.

The invention relates to antibacterial paint and a production process, which comprises raw materials with following parts by weight of 1-10 parts of antibacterial agent. 2-30 parts of organic silicate, 10-40 parts of silane coupling agent and 40-90 parts of water, wherein antibacterial agent is triclosan and pyridine thione. The preparation process comprises adding water with required quantity in a liquid mixing container, adding organic silicate with required quantity into water, adding silane coupling agent after evenly agitated, continuing to agitate to make solution evenly mix, adding anti-bacterial agent of triclosan and pyridine thione, and continuing to agitate for 20 minutes. The invention solves the technical problem that fungicide and addition agent which are adopted by current anti-bacterial paint can affect environment and the health of persons, and has significant mildew proof, anti-bacterial and bacterial inhibiting property. And anti-bacterial material which is adopted belongs to no toxic material, has no harmful affect to environment and human health, and can realize anti-bacterial effect with long-term and high efficiency.

The invention relates to a hyperpure silver powder for solar cell conductive silver paste and a preparing method of the hyperpure silver powder. The preparing method comprises the steps that a mixed reaction solution A of silver nitrate and a dispersing agent and an ascorbic acid mixed reducing solution B are prepared; the solution A and the solution B are preheated at a constant temperature in a water bath kettle, the solution A and the solution B are stirred in a magnetic mode and then mixed for conducting reduction reaction; aftertreatment and a plasma process are conducted on obtained silver powder to obtain the hyperpure silver powder which meets the demand of the solar cell conductive silver paste. A plasma technology is applied so that the prepared silver powder is high in purity, the purity is larger than or equal to 99.99%, the ohmic contact of the silver powder and a silicon substrate can be facilitated when the silver paste is sintered, and a dense membrane is formed. Under the premises that the purity is improved and the characteristics of the silver powder are not changed, the prepared silver powder is made to have the average grain diameter of 0.1-5 micrometers, grain diameter distribution is narrow, dispersity is good, tap density is larger than or equal to 4.5g / cm<3>, and the photoelectric converting efficiency of solar cells can be better improved. A plasma aftertreatment process is simple, and mass production is facilitated.

The invention discloses self-setting calcium phosphate micro spheres, a method for preparing the same and application thereof. The preparation method comprises the following steps of: mixing glutin and deionized water to obtain solution of glutin; mixing polysaccharide gum and deionized water to obtain solution of polysaccharide gum; mixing completely dissolved solution of glutin and solution of polysaccharide gum to obtain solution of glutin / polysaccharide gum; fully mixing the solution of glutin / polysaccharide gum and calcium phosphate cement by stirring to obtain pasty self-setting calciumphosphate slurry, fully dispersing the self-setting calcium phosphate slurry into soybean oil by stirring, removing the soybean oil by filtration, and repeatedly washing the micro spheres by acetone and alcohol to obtain the wet micro spheres; and performing curing hydration and drying of the wet micro spheres to obtain the self-setting calcium phosphate micro spheres. The method has the advantages that: the sintering treatment of the micro spheres is unnecessary, medicaments, growth factors or other active (functional) components can be synchronously loaded in the preparation process, the grain size of the obtained self-setting calcium phosphate micro spheres is 0.12 to 2.61mm, and the obtained self-setting calcium phosphate micro spheres are not disintegrated in 6 to 32 hours.

The invention discloses an inorganic nano composite antimicrobial agent, which is a solution composed of the following components: nano zinc oxide, nano silicon dioxide, nano chitin, polyvinylpyrrolidone, sodium silicate, nano calcium oxide and the balance of solvent. The preparation process comprises the steps of: pre-dissolving zinc oxide, silicon dioxide and chitin, adding a solvent, carrying out repeated extraction, precipitation and filtration to obtain a hyper-concentrated nano solution, adding to the solvent according to a ratio, and stirring. The inorganic nano composite antimicrobial agent has the maximal advantages that long-acting, strong-effect, nontoxic and harmless production is realized and the characteristics, odor, colors and the like of the original product are not changed; the mass production of life antibacterial requisites is realized; and the inorganic nano composite antimicrobial agent is beneficial to human, reduces bacterial injury to human, and indirectly reduces the antibiotic abuse of human. The preparation process provided by the invention is simple, is easy for industrialized mass production, and is low in cost.

The invention belongs to the technical field of medical materials, and discloses a composite bone repair material of a degradable macromolecule network which can in situ form a three-dimensional interpenetrating porous structure and calcium phosphate bone cement and a preparation method and application of the bone repair material. According to the preparation method, a macromolecule network structure is obtained through printing by means of a 3D printing technology, CPC slurry is injected into the macromolecule network structure, and the repair material is obtained. The degradable macromolecule network which can in situ form the three-dimensional interpenetrating porous structure is printed out through 3D printing, the characteristics, size and porosity of in-situ pore forming are optimized, and the material has a good mechanical property; the macromolecule network is degraded in CPC to in situ form three-dimensional interpenetrating large holes beneficial for bone tissue and blood vessel ingrowth, and therefore new bone tissue and new blood vessels can grow into the CPC; meanwhile, the specific surface area of the CPC is increased, degradation of the CPC is promoted, and therefore the degradability and osteogenesis and blood vessel generation capabilities of the CPC are effectively improved.

The invention relates to a technique of filling an infusion bag with hydrogen and discloses a device for filling a medical infusion bag with hydrogen in a non-contact manner. The device comprises a hydrogen generator (1), a gas and liquid mixer (2), a positive displacement pump (3), a vane pump (4), an open water tank (8), a pressure regulation valve (10), and a sealed water tank (7). By means of the hydrogen generator, the solubility of the hydrogen is improved while any characteristic of water is not changed. The positive displacement pump and the vane pump are used, so the hydrogen is processed into micro-nanometer bubbles, the solubility of the hydrogen in water is greatly improved, and the dissolving time of the hydrogen is shortened. The invention further discloses a method for filling the medical infusion bag with the hydrogen in a non-contact manner. The method comprises the steps of mixing gas and liquid, dissolving the gas under high pressure and releasing the micro-nanometer hydrogen bubbles under low pressure. The solubility of the hydrogen is high, the consumed time is short, the production cost is saved, the purity of the product is improved, the content of impurities is reduced, it is guaranteed that bacteria and heat sources are avoided in the operation process, and accordingly clinical requirements for injection are met.

The invention relates to a triad integration freckle-removing functional nano cream for skin external use and a method for preparing the same. The three types (night use type, daytime use type and auxiliary type) freckle-removing nano creams improve and optimize a novel international passive target transdermal drug delivery system (TDDS) as a carrier, and organically combine and solubilize freckle-removing functional components with different biological efficacies, action ways and physical and chemical properties to form a good mutual aid synergic function system which has remarkable effect of controlling and relieving colored patches (such as chloasma, inflammatory pigmentation, sunburn, and the like) caused by abnormal facial metabolism of pigment. The product has the advantages of tiny particle sizes of spherical particles, obvious passive target function, excellent adaptability, homodromous property, fluidity and dispersion, strong penetrability, even texture, subtleness, lubricity and luster, is simple and convenient to use, and is comfortable without pungency and side effects; besides, the appearance is light yellow with slight opalescence, is glittering and translucent, clear and transparent, sticky but not viscous, thick but not dense, and oily but not greasy, has good stability, excellent curative effect, short industrialization cycle and high production efficiency, saves time, materials and energy sources, dose not need special devices and heat energy, and is easy for popularization and application.

The invention provides a modified Smith prediction main stream temperature control structure. The modified Smith main stream temperature control prediction structure is characterized by a system transfer function. The another technical scheme includes that a novel Smith predictor is added, and a modified Smith main stream temperature prediction structure is provided and characterized by a system transfer function. The modified Smith prediction main stream temperature control structure has the advantages that the function transferring manner that the one-order inertia adds the delay link of the conventional Smith predictor is replaced by the high-order system, allowing the prediction system stable, thus dynamic deviation of the system is decreased and engineering application is convenient.

The invention discloses a metal plate two-way stretching large-deformation thickened test piece. The metal plate two-way stretching large-deformation thickened test piece is of a cross structure divided into four cross arms and a central crossed area. The four cross arms are equal in length and width, thickening plates are symmetrically arranged on the upper side and the lower side of each arm, and thus a three-layer composite plate structure is formed. According to the metal plate two-way stretching large-deformation thickened test piece, the feature of a test area material is not changed, the load transmitting capability of the cross arms is enlarged, stress concentration in a transition area between every two adjacent cross arms is relieved, large test piece central area deformation is obtained, and thus the practicability of stress strain of the test material in a two-way stretching test is improved.

Preparation method of linen fiber of high fission belongs to the domain of weave. The stuff is come unglued by enzyme first, then oxygen bleach it in common pressure, acid and alkali neutralization, drying it and make linen fiber in wet condition. It improves the fission of the fiber and doesn't change its characteristic. The fission increases from 400 - 600 to more than 2000. The cohesion performance and spinnability of the fiber is improved. Blended yarn is high, can reach more than 160N.

The invention relates to a high branch high mixed weaving ratio silk / flax blending yarn that belongs to weaving field. The blending yarn is made up from flax fiber that the splitting degree is over 2000 and silk by the method of dry mixed weaving technology. The ratio of silk and flax is 40-90:60-10. The key point of the blending yarn is the preprocessing to the flax material that improves the splitting degree but does not change the feature of it, and the splitting degree improves from 400-600 to 2000, the holding capacity is enhanced, and the spinnability is improved as well. The dry spinning method is adopted, the silk content is high in the blending yarn and the comfort of the cloth is sharply increased.

The invention relates to an organic film-based NiTi alloy surface modification method, and belongs to the field of metal material surface modification. The method comprises the following steps of: irradiating a preprocessed NiTi alloy by using 60Co at room temperature, immersing in a mixed solution of H2O2 and H2SO4 for activation, performing silanization by using vinylsilane, irradiating by using gamma-rays of the 60Co, and grafting organic monomer or polymer to obtain the organic film on the surface of the NiTi alloy. The organic film prepared on the surface of the NiTi alloy can be prepared into a biological material with high biocompatibility through a molecular design; the film is bound with the surface of the NiTi alloy in a form of covalent bond, and the binding force is large; the grafting ratio of the reaction is controlled by adjusting parameters such as irradiation dose, dose rate, organic monomer or polymer concentration and the like, and the performance of the organic film on the surface of the NiTi alloy is improved; the adopted mutual irradiation grafting method is easy and convenient to implement, the utilization rate of radiation energy is high, a chemical initiator is not needed to be added, and the product is pure; meanwhile, materials can be sterilized in the irradiation process, and biomedical materials are convenient to use.

For anti-counterfeiting requirement in daily life and work, the current anti-counterfeiting technologies comprise a laser holographic label, a two-dimensional code for counterfeiting resisting, and anti-counterfeiting printing ink printing, wherein, the making cost of a laser holographic label is high, and the two-dimensional code for anti-counterfeiting is easily counterfeited and imitated. The current anti-counterfeiting printing ink is visible under ultraviolet light or infrared light, the invention provides an invisible anti-counterfeiting printing ink, the invisible anti-counterfeiting printing ink is invisible under ultraviolet light or infrared light, has the characteristic of counterfeiting resistance, channeling prevention, good traceability and high price ratio, can substitute for current ultraviolet light or infrared light anti-counterfeiting printing inks, and is the sixth-generation label-free anti-counterfeiting technology.

The present invention relates to a polyphenylene sulfonamide separation membrane and its modification method by using nano titanium dioxide. Said polyphenylene sulfonamide separation membrane is made up by using (by wt%) 5%-20% of polyphenylene sulfonamide, 78%-94% of organic solvent and 1%-5% of pore-forming agent through a certain preparation process. Its modification method includes the following steps: a), soaking the polyphenylene sulfonamide separation membrane in concentrated sulfuric acid for 1-3hr, then cleaning said polyphenylene sulfonamide separation membrane by using deionized water; and b) soaking the polyphenylene sulfonamide separation membrane in the nano titanium dioxide sol for 5-15min, finally using deionized water to wash said polyphenylene sulfonamide separation membrane so as to obtain the invented nano titaminum dioxide modified polyphenyl sulfonamide separation membrane.

The invention discloses a method for manufacturing novel environment-friendly vacuum reflection material paper. The method comprises the following steps of: A, preparing raw paper and a BOPP (Biaxially-Oriented Polypropylene) laser thin film with an anti-counterfeiting grating; B, compounding the raw paper and the BOPP laser thin film through aqueous acrylic acid polyhydric alcohol, and then separating the raw paper from the BOPP anti-fake film; C, carrying out paper zinc sulfide evaporation on the raw paper with the copied grating through vacuum plating medium equipment; D, coating an aqueous crylic acid polyhydric alcohol transparent coating on the zinc sulfide surface of the raw paper evaporated with zinc sulfide through a coating machine; E, reversing the raw paper coated with the aqueous acrylic acid polyhydric alcohol transparent coating; and F, carrying out paper cutting and packaging and putting in storage after reversing. According to the method provided by the invention, the raw paper is provided with the anti-counterfeiting grating, so that the raw paper has a transparent radial anti-counterfeiting effect. The effects of the prior art can be reached by only printing ordinary transparent oil ink, so that the process of coating a film after printing can be eliminated, so that a label is anti-counterfeiting and environment-friendly.

The invention discloses a blade grinding and polishing vibration detection system based on vision. The blade grinding and polishing vibration detection system comprises an illumination system, a CCD camera, an image acquisition system, an imaging system, a computer system and a display device. The lighting system is used for providing light sources for the system; the imaging system is used for imaging spatial structure information of the blade on the CCD camera; the CCD camera and the image acquisition system convert acquired image optical signals into electric signals; the CCD camera converts the analog image signal into a digital image signal and transmits the digital image signal to the computer system; the computer system receives the digital image signal, processes the image throughan image processing algorithm to obtain a blade characteristic parameter, and obtains blade vibration information according to the blade characteristic parameter; and the display equipment displays the blade vibration information. The invention also discloses a corresponding detection method. By means of the scheme, vibration of blade grinding and polishing machining can be effectively detected, and the beneficial effects of being convenient to measure, wide in measuring range, high in precision and the like are achieved.

The invention relates to a biological plugging, oil and scale removal agent by taking advantage of micro bio-fermentation method and a preparation method thereof. The invention is extruded into stratum so as to lower surface tension of reservoir rock, lead the hydrocarbon of rock surface to peel off and spread away and can increase oil phase penetrance rate and reduce oil increment and realize the purpose of oil removal and improving recovery efficiency.

The invention discloses a composition for preserving corpse samples, and relates to corrosion prevention, rot resistance and preservation of corpses in medical teaching and scientific work. The composition comprises rot-proof and mold-proof active component, infiltration modifier and wetting agent, wherein the rot-proof and mold-proof active component is diacetate; the infiltration modifier is one or a mixture of two or more than two of nitrate, sulfate or hydrochloride according to any proportion; and the wetting agent is polylol. The invention also provides a method for preparing the composition for preserving the corpse samples. The method is special for preserving the corpse samples after setting treatment; the composition contains sodium diacetate, is used for preserving animal or human corpses, and can effectively solve the problems of corrosion prevention, rot resistance and preservation of the corpses; and the preservation liquid has the characteristics of long rot resistance time, good effect, no formaldehyde, safety and non-toxicity, easily obtained raw materials, and low price.

The invention belongs to the technical field of material sterilization. The invention relates to a dry-heat low-pressure continuous sterilization method. A sterilization inner cavity is heated througha heating device; the sterilization inner cavity is vacuumized through a vacuum device; the temperature of the sterilization inner cavity is adjusted and set during sterilization; materials are fed from one end of the tubular sterilization inner cavity, the material is conveyed from a feeding port to a discharging port through a conveying packing auger. In the sterilization process, the maintaining time of the vacuum degree and the pressure is controlled according to the number of microorganisms and the water content of materials, in the material conveying process, sterilization is conductedat the temperature lower than 100 DEG C under the positive-pressure and negative-pressure combined action, and the sterilization time is adjusted by adjusting the staying time of the materials in thesterilization inner cavity by adjusting the rotating speed of the conveying auger. A traditional dry heat sterilization mode is combined with preset positive and negative pressure, a physical sterilization process without any sterilizing agent works under a relatively low temperature condition, the medicine property of the materials is kept, and continuous sterilization is realized.

The invention relates to the field of chemical fiber materials and discloses a preparation method for euphausiid protein regenerated cellulose fibers. The preparation method comprises the following steps: preparing a mucilage glue solution for later use; preparing a pre-cross-linked euphausiid protein solution: sequentially adding a sodium hydroxide solution, euphausiid protein and lignin sulfamic acid; agitating at 50-70 DEG C for 4-6 hours; cooling to 35-45 DEG C, keeping the heat and filtering to obtain a filtering solution, namely the euphausiid protein solution; adding a cross-linking agent into the euphausiid protein solution and keeping the heat at 35-45 DEG C to react for 0.4-0.6 hour to prepare the pre-cross-linked euphausiid protein solution; and mixing the mucilage glue solution, the pre-cross-linked euphausiid protein solution and the cross-linking agent and spinning. The fibers prepared by the preparation method have good strength; the strength of the fibers is enhanced; meanwhile, the hand feeling and the luster of the fibers are improved and the fibers can be used as raw materials of a textile industry.

The invention belongs to the technical field of environment protection, in particular to a method for cutting down adverse effects of a nano material on a sewage biological denitrification and phosphorus removal system. The method comprises the following steps of carrying out anaerobic conversion on organic wastes to obtain a solution containing propionic acid and proteins; and regulating a carbon source of sewage to be treated by using a solution obtained by fermentation. Thus, the directional adjustment and control of a sewage denitrification and phosphorus removal function microorganism structure is achieved, thereby greatly cutting down the adverse effects of the nano material on a sewage biological treatment process. The method has the advantages of obvious cutting-down effect and the like, and is simple to operate. Under the proper process conditions, due to adoption of the method, the cutting-down rates of adverse denitrification and phosphorus removal effects caused by the nano material are respectively 80% and over 60%.

The present invention discloses a nanobubble hydrogen water producing machine. The machine comprises a tank body, a hydrogen gas supply pipe, a water supply pipe, a hydrogen generator, a pressure pump, a dissolved air tank, a nano hydrogen bubble generator and a bubble water pipe. The nano hydrogen bubble generator comprises a pipeline and diaphragms. A differential pressure hole used for generating pressure differential is formed in each of the diaphragms, so that pressure is reduced to saturated vapor pressure at the temperature of water; then hydrogen molecules in the water are vaporized to produce nano hydrogen bubbles; and finally, super-saturated hydrogen-enriched water is obtained. Hydrogen-enriched water is obtained by using a physical method; chemical contamination is avoided; hydrogen gas is dissolved into water with high concentration in the form of nano hydrogen bubbles, so that super-saturated hydrogen-enriched water is formed for being stored in a super-saturated hydrogen-enriched water tank; and the hydrogen concentration can reach 2.6PPM, which is much higher than 1.0PPM in japan.

The invention discloses a laser output head and a laser machining machine. The laser output head comprises a first laser output unit, a second laser output unit, a first beam combining unit and a focusing unit, wherein the first laser output unit is used for outputting a first laser beam, the second laser output unit is used for outputting a second laser beam, the first beam combining unit is positioned in front of laser output ports of the first laser output unit and the second laser output unit and used for converting the first laser beam and the second laser beam into laser beams in one output direction, and the focusing unit is adjacent to the first beam combining unit and used for focusing the laser beams outputted by the first beam combining unit to form a focused beam. One laser output head can output the laser beams with different wavelengths , for example, the laser machining machine is compatible with QCS (quality control system) connection joint, a QBH (query by humming) connection joint and a pulse connection joint, and different materials are cut, welded or marked without replacing output connectors.

The invention discloses a reinforcement method for a pulp molding product with PLA. The method comprises the specific steps of 1, material selection, wherein a molding product raw material is selected, the raw material is wood pulp or bamboo pulp, a PLA fiber similar to a papermaking fiber in form is selected, the length of the fiber is 1-5 mm, the melting point is about 170 DEG C, and cellulose is selected and is one or more of polyvinyl alcohol, carboxymethyl cellulose, hydroxypropyl methyl cellulose and cellulose ether; 2, pulping, wherein the PLA fiber, the cellulose and the molding product raw material are pulped and dispersed. According to the reinforcement method, by adding the PLA fiber and the cellulose, the characteristics that the pulp molding product is degradable and recyclable are not changed, the strength performance, such as tensile strength, tensile energy absorption and bursting strength, of the pulp molding product is improved, and the buffer protection effect is improved; the stiffness of the pulp molding product is improved, size deformation of the product is reduced, the interlayer bonding force and the surface strength of the pulp molding product are improved, and linting and dusting are relieved.

The invention discloses a slow-wave structure of a multiple-beam coupling cavity traveling-wave tube and a manufacturing method of the slow-wave structure. The slow-wave structure of the multiple-beam coupling cavity traveling-wave tube consists of a coupling cavity chain connected by pole shoes and copper rings; the pole shoes and the copper rings are alternately arranged; coupling slots which are staggered with one another in 180-degree arrangement are formed on the pole shoes and the copper rings; and the thickness d1 of the pole shoes is greater than the thickness d2 of the copper rings. The manufacturing method of the slow-wave structure comprises two steps. By changing the thicknesses d1 and d2 of the pole shoes and the copper rings, the pole shoes can conduct a larger magnetic field value without a magnetic field saturation phenomenon. The method is simple and feasible in operation; and the electronic beam passing rate and the working stability of a high-power multiple-beam coupling cavity traveling-wave tube can be improved effectively.

The invention discloses a production technology of an S-shaped lateral waist tape. The technology comprises the following specific steps of (1) symmetrically cutting a lateral waist tape material into a left block and a right block; (2) opening the lateral waist tape material open through an open mechanism; (3) cutting the lateral waist tape material into small segments through a cutter mechanism; (4) bonding non-woven fabric and the lateral waist tape material together by a pressure point upper roller through a pressure point; (5) further conveying the bonded materials to a glue spray device, gluing the non-woven fabric, further conveying the materials to a folding mechanism, folding the lateral waist tape material inwards through the folding mechanism, laminating and pressing firmly; and (6) retracing the folded material on an assembly wheel after gluing and compounding with a base film. According to the technology, a process device is reduced, the raw material characteristics are not changed, the structure of an adult diaper is not changed, the equipment cost is reduced, the conveying stability and cutting stability of equipment are improved, a blowing phenomenon is avoided, the production stability is ensured, the rejection rate is reduced and the production efficiency is improved.

The invention discloses a wear-resistant solid wood floor and a manufacturing method of the wear-resistant solid wood floor. The wear-resistant solid wood floor comprises a plate body (1). The wear-resistant solid wood floor is characterized in that a rabbet (2) and a tenon (3) are arranged on the side face of the plate body (1), a paint layer (4) is arranged on the surface of the plate body (1), a wear-resistant paint layer (5) is arranged on the paint layer (4), and an aluminum oxide vacuum coating layer (6) is arranged on the wear-resistant paint layer (5). According to the wear-resistant solid wood floor, the surface of the floor is coated with the aluminum oxide vacuum coating layer, tests conducted by the applicant show that the wear resistance of the wear-resistant solid wood floor is 2-10 times that of an ordinary solid wood floor, and a higher user requirement can be met; in addition, under the condition that the coating layer improves the wear resistance, the thickness of the solid wood floor is not increased, the feature of solid wood is not changed, the quality and the additional value of the solid wood floor can be improved, and higher value is provided for an enterprise.

The invention discloses a control method for the coating amount of anti-rust oil on the surface of a cold-rolled sheet and belongs to the technical field of metal surface anti-rust treatment. A cold-rolled product sample is sheared into a sample base plate, and blow-drying is performed after deoiling and washing treatments are finished; 1-4 drops of anti-rust oil are sucked through a dropper, dropwise added on the surface of the base plate and uniformly spread through a rubber roller; and roller coating is performed through a clean roller, and the oil coating amount of the base plate is determined through a weight difference method. The control method for the coating amount of the anti-rust oil on the surface of the cold-rolled sheet has the advantages that the characteristics of the anti-rust oil are not changed, and the oil coating amount approximately equal to that of actual production is obtained on the sample base plate without long-time still standing.

The invention discloses a uniform load test verification method of a yaw driving system of a wind turbine generator. The structural features of the yaw driving system are fully considered in the method, a torque test sensor is installed on a structure in front of a last stage inner gear ring of a yaw reduction gearbox planetary system and a supporting underframe, a yaw driving torque is extrapolated by measuring the torsional deformation of the outer wall of the structure and the calibration relationship between the torsional deformation and the torque, being different from the traditional test method of mounting the torque sensor, the yaw driving system is directly converted into the sensor itself, the original system structure does not need to be changed, and the defects that large changes are made to the driving system by the conventional detection method, resulting in heavy workload and measurement errors caused by the unknown gear training efficiency, are solved.