154results about How to "Keep the same color" patented technology

The invention provides a method for preparing hawthorn wine by taking hawthorn fruit and hawthorn leaves as a raw material. The method comprises the steps of gathering fresh hawthorn fruit and hawthorn leaves as a raw material, then performing primary deastringency on the hawthorn fruit, cutting the hawthorn fruit, removing kernels, drying or baking the hawthorn leaves, extracting hawthorn leaf juice, mixing hawthorn fruit pulp and the hawthorn leaf juice, performing heating and secondary deastringency on the hawthorn fruit pulp and the hawthorn leaf juice, then performing pulping, browning preventing, pectin removal, sugar regulating, fermenting and clarifying on the hawthorn fruit pulp and the hawthorn leaf juice, and finally performing filtering, wine regulating and ageing, so as to obtain the finished hawthorn wine. By adopting the method, the hawthorn fruit and hawthorn leaves are organically combined, the prepared hawthorn wine can properly maintain original nutrient components and functional components of the hawthorn fruit and hawthorn leaves, and after technical processes of deastringency, browning preventing, and pectin removal, the hawthorn wine is rich in nutrition and good in palatability and taste, arouses appetite of people, belongs to multifunctional health-care wine product with the effect of preventing diseases and higher a health-care value, and is good in market prospect.

The invention provides an electric welding rod with ultra low hydrogen and high toughness. The electric welding rod comprises core welding-wires and electrode coating composition. The electrode coating composition comprises the following components (weight percentage): 38-42 percent of marble, 21-28 percent of fluorspar, 1-3 percent of white titanium pigment, 6-10 percent of ferrotitanium, 0.5-1.5 percent of low-carbon ferromanganese, 3-7 percent of ferrosilicon, 3-6 percent of manganese metal, 2-4 percent of metallic chromium, 1-3 percent of mica, 1-3 percent of ferromolybdenum, 1.5-3.5 percent of ferrovanadium, 1-4 percent of nickel powder and 2-4 percent of rare earth metal. H08A is adopted as the core welding-wires, and water glass is used as the cementing agent. The electric welding rod fills the blank of electric welding rod needed for an ultra-thin large diameter circular saw blade, and simultaneously the electric welding rod can also be used for the welding of products in structures of carbon tool steel, alloy tool steel and spring steel material. The electric welding rod has good welding processing property and crack resistance, and simultaneously has very high welding strength, rigidity, plasticity and toughness, and the color of the welding seam is identical with the color of the base material.

The invention relates to a technical field of ceramic material metallization production, and specifically relates to an Al3O3 ceramic substrate metallization process. According to the invention, the Al3O3 ceramic substrate is sequentially subjected to a coarsening treatment, a sensitization and activation treatment, a chemical plating treatment, and a metal or alloy electroplating treatment, such that a metal or alloy film is formed on the surface of the substrate. With the process method provided by the invention, the surface of the ceramic substrate is uniformly coarsened. Microscopic coarse particles are small and have high adsorption capacity. Therefore, reducing cores can be well absorbed during the subsequent sensitization and activation treatment, and chemical plating can be finally realized. The coarsened ceramic substrate can be subjected to the sensitization and activation treatment with a subsequent silver ammonia solution, and can be provided with a copper plating layer with the chemical copper plating process. Also, the substrate can be subjected to the sensitization and activation treatment with colloidal palladium, and can be subjected to a nickel plating process, such that a chemical nickel plating layer can be obtained. Copper, nickel, or other metal or alloy can be electroplated, and ceramic substrate metallization can be realized.

An image processing device can reproduce the original color of an electronic document on an output device faithfully and can simulate the appearance of color of a recorded product on a display device accurately. Color temperature information of an electronic document is recognized by an electronic document color temperature information recognition unit and delivered to a first color correction conversion unit. The first color correction conversion unit carries out color conversion based on the color temperature information of the electronic document so that a recorded product output from an output device assumes substantially the same color as the electronic document when it is observed under an illumination light source having a color temperature indicated by the color temperature information of the electronic document. An image is formed by the output device based on the color converted image signal to output the recorded product.

The invention discloses a device for cleaning a flat panel, comprising a stand, a conveying mechanism, a scourer and a reciprocating drive mechanism. The conveying mechanism is arranged on the stand, the scourer is arranged above the conveying mechanism, the scourer comprises a moving frame, a motor, a transmission mechanism and a plurality of brushes with rotating shafts, wherein the motor is fixed on the moving frame, the motor is in drive connection with the rotating shafts through the transmission mechanism, the rotating shafts rotatablely supports against the moving frame, the moving frame is in slide connection with the stand through a sliding pair, and the reciprocating drive mechanism is respectively connected with the stand and the moving frame. The invention can neatly clean a surface resultant undergoing chemical etching in time, ensure that the etched surface undergoing chemical etching is not discolored, avoid using chemical cleaning agents of acid water and the like, and realize environmental protection without harm.

A backlight unit and a liquid crystal display device improve uniformity of a luminance and a color of a display surface. The backlight unit includes a light source device and a circuit board, the light source device including a first board and a plurality of point light sources connected in series, the plurality of point light sources being arranged on the first board, and the circuit board including a second board, a driving circuit for the plurality of point light sources, and a variable resistance device, the driving circuit for the plurality of point light sources and the variable resistance device being arranged on the second board, wherein a resistance adjusting element of the variable resistance device is exposed to an outside, and at least one point light source arranged on an end side among the plurality of point light sources is connected in parallel to the variable resistance device.

A light source device, a backlight unit, and a liquid crystal display device are each capable of improving uniformity of a luminance and a color of a display surface. The light source device includes a board; a plurality of point light sources arranged on a surface of the board and connected in series; and a variable resistor, wherein the variable resistor is disposed on the surface on which the plurality of point light sources are arranged of the board; at least one point light source arranged on an end side among the plurality of point light sources is connected in parallel to the variable resistor; and the board has a through-hole in a region where a variable resistor is located.

An image processing device can reproduce the original color of an electronic document on an output device faithfully and can simulate the appearance of color of a recorded product on a display device accurately. Color temperature information of an electronic document is recognized by an electronic document color temperature information recognition unit and delivered to a first color correction conversion unit. The first color correction conversion unit carries out color conversion based on the color temperature information of the electronic document so that a recorded product output from an output device assumes substantially the same color as the electronic document when it is observed under an illumination light source having a color temperature indicated by the color temperature information of the electronic document. An image is formed by the output device based on the color converted image signal to output the recorded product.

The invention relates to a colored oily fertilizer anti-caking agent prepared from inorganic pigment and application of the colored oily fertilizer anti-caking agent. The colored oily fertilizer anti-caking agent comprises the following ingredients in percentage by mass: 2-4% of iron oxide red, iron oxide yellow, iron oxide blue, iron oxide green, iron oxide purple, iron oxide brown or iron oxide black and 98-96% of an oily anti-caking agent, and is prepared by uniformly milling and mixing such ingredients by adopting a horizontal mill. The colored oily fertilizer anti-caking agent is applied to fertilizer coating, and 1.0-1.6 kilograms are used in each ton of a fertilizer, so that a corresponding color of red, yellow, blue, green, purple, brown or black is shown in the appearance of the fertilizer. The colored oily fertilizer anti-caking agent with the corresponding color of red, yellow, blue, green, purple, brown or black is provided for fertilizers with different appearance colors, so that inside and outside colors of the fertilizer are consistent, color difference and materials with inconsistent colors are avoided; the colored oily fertilizer anti-caking agent is stable and uniform in color, strong in coating capability, resistant to light and heat, colorfast and non-discoloring, can also be used as a fertilizer variety distinguishing and anti-counterfeiting mark, and is low in use cost and good in anti-caking performance.

The invention relates to the processing technology of agricultural products, in particular to a preservation technology of peeled burdock, and belongs to the technical field of agricultural product processing. The preservation technology comprises the following steps: firstly, burdock is immersed in disinfecting liquid to be disinfected; secondly, disinfected burdock is peeled in running water, immersed in running water and then removed of grey matter; and thirdly, after the burdock is disinfected and the color is protected, the burdock is vacuum-packed, wherein the disinfecting liquid comprises water, chlorine dioxide and citric acid, and the prepared liquid is nontoxic and flavorless, has extremely strong bactericidal and fresh-preserving effects, can kill bacteria within ten minutes at ordinary temperature, and has a better disinfection effect on all the microbes in semi-finished products. The preservation technology has the advantages that vacuum technique is utilized in production process, so that the colors and characteristics of vegetables are protected to the utmost extent, and the vegetables can be stored for six months under the conditions that the temperature is 0 to 4 DEG C.

The invention relates to a colorful oily fertilizer anticaking agent and an application thereof. The colorful oily fertilizer anticaking agent comprises components in percentage by mass as follows: 1%-3% of allura red aluminum lake, sunset yellow aluminum lake, indigo blue aluminum lake, fast green aluminum lake, purple aluminum lake, chocolate brown aluminum lake or brilliant black aluminum lake and 97%-99% of an oily anticaking agent, the components are milled by a horizontal milling machine and are mixed uniformly, and the colorful oily fertilizer anticaking agent is prepared; the colorful oily fertilizer anticaking agent is applied to fertilizer packaging, and accordingly, the fertilizer appearance color is corresponding red, yellow, blue, green, purple, brown or black. The colorful oily fertilizer anticaking agent and the application thereof have the advantages that the corresponding red, yellow, blue, green, purple, brown or black oily fertilizer anticaking agent is provided according to different colors of the fertilizer appearance, so that the fertilizer hue is stable, the packaging capacity is high, inner and outer colors are consistent, chromatic aberration and uneven dyeing are avoided, the color is uniform, and besides, the colorful oily fertilizer anticaking agent can be resistant to light and heat, is fadeless and non-discoloring and is taken as a fertilizer variety distinguishing and fertilizer anti-counterfeiting mark; the method is simple, the use cost is low, the anticaking performance is good, when the fertilizer is coated with the agent, the fertilizer loosening rate is up to or higher than 90%, biodegradation can be realized, and environmental protection is facilitated.

Provided is a production method of a plating steel belt for household gas wares. The method comprises the steps that a DC03 hot-rolled pickling coil serves as a raw material, repeated cold rolling is conducted, and then degreasing is conducted; primary annealing is conducted; belt making is conducted, specifically, uncoiling and striping are conducted and burrs are removed; an Ni-Co alloy is electroplated; conventional washing and drying are conducted; physical vapor deposition is conducted; ion implantation is conducted; secondary annealing is conducted; and the plating steel belt is obtained by winding after being naturally cooled to the room temperature. The tensile strength of the steel belt is 500-550 MPa, ductility is 34-38%, the surface roughness is 0.04-0.07 micrometer, the specular reflectance is 99.2-99.7%, and the gloss loss is not more than 0.2% after the steel belt is exposed for 4000 days at the indoor atmosphere environment; and for the steel belt needed by a gas ware panel, the tensile strength is 400-450 MPa, ductility is 42-47%, the surface roughness is 0.02-0.05 micrometer, the specular reflectance is 99.55-99.95%, and the gloss loss is not more than 0.3% after the steel belt is exposed for 3600 days at the indoor atmosphere environment.

The invention relates to the technical field of food processing equipment, and discloses a material mixing apparatus for chopped hot pepper food. The material mixing apparatus comprises a tank body, wherein the bottom portion of the tank body is fixedly provided with three bases, the left side and the right side of the top surface of the tank body are respectively and fixedly communicated to a material inlet pipe, and the bottom portion of the left side surface of the tank body is fixedly communicated to a material outlet pipe. According to the present invention, the driving gear and the driven gear form engaged connection, and have the opposite rotation directions so as to make the stirring motor simultaneously drive the two stirring rods to rotate in the opposite direction, the stirringblades on both sides of the two stirring rods have different heights to provide the cross-mixing effect, such that the chopped hot pepper raw material is completely mixed, the color of the mixed raw material is uniform, and the appearance of the finished product chopped hot pepper is increased while the taste is improved so as to increase the sales volume to further improve the sales of the merchant.

Disclosed is a color reproduction apparatus and method for a display device that can reproduce the same colors as those sent from a signal source even if a color reproduction gamut of the display device is different from that of the signal source. The color reproduction apparatus includes a camera inverse gamma correction unit for performing a camera inverse gamma correction of an input video signal using an inverse gamma correction table, a matrix correction unit for performing a matrix correction of the video signal, a display gamma correction unit for performing a display gamma correction of the matrix-corrected video signal using a gamma correction table, and a Munsell hue correction unit for correcting a difference between colors sent from the signal source and colors reproduced through the display device according to a color reproduction gamut difference between the signal source and the display device with respect to the display-gamma-corrected video signal.

The invention relates to a fresh Zhejiang fritillaria processing method, in particular to a preparation process of Zhejiang fritillaria ultrafine powder. The preparation process of the Zhejiang fritillaria ultrafine powder comprises the following steps: selecting a raw material, grinding and pulping, prefreezing, performing freeze drying and preparing micropowder. By adding water, grinding and prefreezing, the Zhejiang fritillaria medicine material is firstly frozen before sublimation and dewatering to form a stable framework, secondly dewatered and dried in low-temperature vacuum, and finally prepared into the Zhejiang fritillaria ultrafine powder by using a vibrating ultrafine powder pulverizing, grinding and mixing machine. The prepared Zhejiang fritillaria ultrafine powder is stable in quality, can be preserved at room temperature for a long time, is very good in rehydration, can quickly absorb water for restoration, and has basically same color and quality as fresh Zhejiang fritillaria; and an in-vitro dissolution test proves that a unit mass of the preparation Zhejiang fritillaria ultrafine powder contains more active components than processed dry Zhejiang fritillaria.

The invention relates to an indoor suspended ceiling gusset plate and a cladding process thereof, wherein the suspended ceiling gusset plate comprises a peripheral frame and an internally-arranged core plate; the core plate is embedded into the frame; the frame is of a rectangular structure formed by sequentially-combined four lines and the adjacent lines are integrally connected through pins; the frame and the core plate are connected via clamping; and the cladding process comprises the steps of respectively preprocessing a base material and a plane materiel, controlling certain process conditions and obtaining a cladded product through a cladding machine. The suspended ceiling gusset plate disclosed by the invention has the advantages that the structure is simple and a separated type structure of the core plate and the frame is adopted, so that the suspended ceiling gusset plate can be separately produced and the industrial volume production is easy to realize; the environmental protection performance is good and PVC (Poly Vinyl Chloride) membranes with various textures, colors and structures or other cladding materials can be adopted to clad, so that the suspended ceilings with various different styles can be formed in the room; in the meantime, the suspended ceiling gusset plate has the performances of good water resistance, moisture resistance, ageing resistance, deformation resistance and the like.

The invention discloses a preparation method of an active pseudo-ginseng ultramicro powder, wherein the preparation method comprises the following steps: (1) cleaning fresh pseudo-ginseng root main roots, and cutting into pseudo-ginseng slices; (2) cooling the pseudo-ginseng slices to freeze the pseudo-ginseng slices; (3) at the pressure intensity of 10-20 Pa, holding for 1-2 hours, making the temperature rise to 0 DEG C from -30 DEG C to -40 DEG C in 20-30 hours, and then making the temperature rise to 20 DEG C from 0 DEG C in 2-4 hours; and obtaining freeze-dried pseudo-ginseng slices; and (4) smashing the freeze-dried pseudo-ginseng slices for 2-10 min at a low temperature with a jet mill, to obtain the active pseudo-ginseng ultramicro powder having more than 95% of the micro powder with the particle size of 20 [mu]m or less. Medicinal active ingredients are avoided from generating oxidation, decomposition and other phenomena due to heating, drying and smashing under ordinary pressure, and the mouthfeel, color, luster and quality are basically the same as those of fresh products; and the product has extremely good water rehydration, can quickly absorb water to recover, can maximize retention of unique nutritional ingredients and active ingredients of pseudo-ginseng, and gives full play to pseudo-ginseng pharmacological functions.

The invention relates to the use of a prepreg comprising at least one fiber and a matix to be cured during application, for the production of a fiber-reinforced composite, for active orthodontic therapy. The invention further relates to an active orthodontic appliance consisting essentially of an arch wire in at least one part, directly contactable with teeth and consisting essentially of a fiber-reinforced composite comprising at least one fiber and a matrix, said arch wire comprising a loop directly contactable with a tooth or teeth to be moved by the appliance. The invention still relates to a process for manufacturing an active orthodontic appliance and to an active orthodontic method of treatment.

A light source device, a backlight unit, and a liquid crystal display device are each capable of improving uniformity of a luminance and a color of a display surface. The light source device includes a board; a plurality of point light sources arranged on a surface of the board and connected in series; and a variable resistor, wherein the variable resistor is disposed on the surface on which the plurality of point light sources are arranged of the board; at least one point light source arranged on an end side among the plurality of point light sources is connected in parallel to the variable resistor; and the board has a through-hole in a region where a variable resistor is located.

The invention provides a water-based glaze which comprises the following components in parts by weight: 5-25 parts of water-based resin, 0-1 part of dispersing agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of wetting agent, 10-20 parts of cosolvent, 1-2 parts of pH regulator, 1-3 parts of thickener, 0.1-0.3 part of mildew preventive, 0-20 parts of filler, 5-20 parts of color paste and the balance of water. The yellowing-resistant water-based glaze has excellent wiping property and excellent yellowing resistance, and can keep no discoloration for a long time under illumination conditions. Thus, the furniture color of the wood products applied by the glaze can keep constant. The water-based glaze has the advantages of high coloration effect, high transparency, high layering sensation and moderate drying time, and is very convenient for on-site construction.

The invention discloses an electrolytic coloring technique of an aluminum alloy cooker, which comprises the following steps: 1) polishing: carrying out surface polishing on a workpiece to be processed; 2) cleaning: cleaning the workpiece surface; 3) oxidation: using a sulfuric acid direct-current anodization technique to generate a colorless high-transparency anode oxide film on the workpiece surface, wherein the oxide film is uniformly distributed with micropores; 4) electrolytic coloring: putting the workpiece with the oxide film obtained in the step 3 into a cupric salt electrolyte, and electrifying for electrolysis, so that the ionized copper ions are attached to the micropores of the surface oxide film of the aluminum alloy cooker to form a color layer; 5) color fixation: soaking the colored workpiece in hot water for 1-2 minutes; and 6) sanding the surface of the workpiece obtained in the step 5 so that the copper ions are sealed in the oxide film. By using the technique disclosed by the invention, after the cooker is colored, the color layer is effectively protected, so that the cooker can have bright color for a long time, and can not become discolored; and thus, the aesthetic degree and use safety of the cooker are enhanced.

To overcome the disadvantages introduced by using UV sensors to detect the intensity of UV light in water purification apparatuses, a novel detection apparatus to “visualize” the quality of water in the form of visible light, instead of digitizing the intensity of UV light includes s a first detection window, coated with a first material for converting a received first ultraviolet light into a first visible light. The first ultraviolet light is emitted from an ultraviolet light source and traverses the liquid, and the detection apparatus further mixes the first visible light with second visible light to generate a third visible light. The different color of the third visible light can represent the different quality of the water.

The invention discloses high-temperature-resistant glass which is prepared from, by weight, 60-80 parts of quartz sand, 30-40 parts of sodium carbonate, 20-30 parts of silicon dioxide, 15-35 parts ofmica powder, 10-30 parts of zirconium dioxide, 10-20 parts of strontium carbonate, 5-15 parts of zinc borate, 3-8 parts of titanium dioxide, 5-10 parts of silicon nitride, 2-8 parts of chromic oxide,5-10 parts of molybdenum oxide, 5-15 parts of aluminum oxide, 8-15 parts of W / Ni alloy, 3-8 parts of bismuth oxide, 1-5 parts of mirabilite, 1-3 parts of calcium aluminate, 3-6 parts of cobalt oxide,and 4-8 parts of an additive. The glass has excellent high temperature resistance and is excellent in transparency and hardness, has simple preparation method and is easy to produce in industrial production.

The invention discloses a baking-resistant simulated fruit and a preparation method and application thereof. The simulated fruit comprises the following components in percentage by weight: 20-25 percent of fruit product, 6-10 percent of modified starch, 13.6-40 percent of sweetening agent, 1-3 percent of oil, 5-8 percent of sugar alcohol, 1-5 percent of glycerinum, 0.1-0.2 percent of edible emulsifier, 1-2 percent of edible colloid, 0.4-0.6 percent of sour adjustment agent and 0.13-0.15 percent of salt. According to the preparation method, the modified starch, the edible emulsifier, the edible colloid, the salt and the solid sweetening agent in the sweetening agent as well as chelated salt in the sour adjustment agent are stirred to form a uniform mixture in a dry manner; the mixture is dissolved into water and is uniformly mixed with the water; in a continuous stirring process, the temperature is increased to 80-85 DEG C; the liquid sweetening agent in the sweetening agent, the fruit product, the oil and the sugar alcohol are added into the mixture to obtain a paste body; after the paste body is sterilized, the glycerinum is added into the sterilized paste body and is uniformly stirred with the sterilized paste body; after the secondary mixture is cooled, organic acid in the sour adjustment agent is added into the secondary mixture; and then the final mixture is cooled and sliced to obtain the baking-resistant simulated fruit. The baking-resistant simulated fruit is particularly suitable for serving as fillings, sandwiches, surface decorations and seasonings of baked food.

The invention discloses a preparation method for active dendrobium candidum superfine powder. The preparation method comprises steps: first, leaves of harvested fresh dendrobium candidum are removed, and washing and draining are carried out; second, punching is carried out, the dendrobium officinale is fixed on a die, the die is placed on a shelf of a vacuum drying container, cooling is carried out, the die is a cube-shaped metal die body (1) with an upper surface equipped with a half-cylindrical groove (2), and small holes (3) are arranged in the die body; third, vacuum-pumping is carried out; fourth, the shelf is heated, the temperature is risen to 0 DEG C, the pressure intensity is kept at 20-100Pa, drying is carried out, the material temperature is risen from 0 DEG C to 20 DEG C, the pressure intensity is kept at 10-20Pa, drying is carried out, the material temperature is risen from 20 DEG C to 40 DEG C, the pressure intensity is kept within 10Pa, drying is carried out, pressurization to a normal pressure is carried out; fifth, low temperature air-flow crushing is carried out, and active dendrobium candidum superfine powder is obtained and more than 95% of active dendrobium candidum superfine powder has a particle size of being less than 20 micrometers. The freeze-drying rate is high, freeze-drying time is saved, energy consumption is lowered, the product has a small particle size and is easy to dissolve and absorb, and the bioavailability is high.

The invention relates to medlar leaf health-care tea and a preparation method thereof and belongs to the fields of formula and preparation of health-care tea. The technical scheme is that: the medlar leaf health-care tea is refined by using medlar leaves serving as main materials and various medicinal extractives; the preparation process comprises the steps of screening, washing, placing flatly, deteriorating, green-removing, twisting and spraying the medicinal plant extractives, baking and subpackaging the products to obtain the finished products. The products have four series. The medlar leaf health-care tea maintains active ingredients in the medlar leaf well, completely exerts the pharmacological characteristics of the medlar leaf, has synergism by combining with various extractives and has respective effects of the extractives. The medlar leaf health-care tea is suitable for long-term drinking so as to clear heat and detoxify, maintain beauty and keep young, nourish the kidney and tonify yang, improve eyesight and calm the nerves, relieve fidget and quench one's thirst, improve sleeping, enhance human immunity, prevent cold, has auxiliary curative effect of reducing blood fat and blood sugar, and is particularly suitable for people suffering from parched mouth and scorched tongue, internal heat and toothache and constipation to drink. The medlar leaf health-care tea has the advantages of low price, easiness in popularization, good benefit and the like.

The invention discloses a heat resisting device for copper part welding. The heat resisting device for copper part welding comprises two clamping plates which are made of metal and of the same structure. A water inlet and a water outlet are formed in one end of each clamping plate in a spaced mode. The water inlet and the water outlet in each clamping plate are communicated through a cooling water channel formed in the clamping plate. Water inlet pipes and water outlet pipes are welded outside the water inlets and the water outlets respectively. During welding, a welded copper part is clamped through the two clamping plates. When the heat resisting device is used during copper part welding, the welded copper part is clamped through the two clamping plates, circulating cooling water is introduced into the two clamping plates to be used for cooling the cooper part during welding, in this way, it can be guaranteed that the color of the welded copper part is not changed, a protective layer bound on copper part is in a good condition instead of being damaged, and the welding quality of the cooper part is guaranteed.

The invention relates to a processing method for fresh radix scrophulariae, and particularly relates to a preparation technology for fresh radix scrophulariae superfine powder. The preparation technology comprises the following steps of (1) selecting materials; (2) pulping: after preliminarily smashing the raw material fresh radix scrophulariae, adding microcrystalline cellulose powder accounting for 10-20wt% of the raw material, then fully mixing the raw material and the microcrystalline cellulose through rotating a charging bucket of a mixing machine, and then adding water and pulping; (3) pre-freezing: adding tween 80 accounting for 10-15wt% of the pulp before pre-freezing and stirring completely; (4) freeze drying: controlling the water content below 6wt%; and (5) grinding into superfine powder through a vibrating type superfine grinding mixing mill. The fresh radix scrophulariae superfine powder prepared by the preparation technology can reserve active ingredients of the fresh radix scrophulariae to the maximum degree.