222results about How to "Efficient production process" patented technology

The invention provides a production method of fructus monordicae extract with over 60% of mogroside V content. In the method, the fresh momordica grosvenori is subjected to the following technique processes: smashing, saccharification, extraction by water, concentration, sedimentation and centrifugation, ion exchange resin refining, macroporous resin refining, concentration, aluminum oxide refining, concentration, spray drying and finishing product. The method can produce high-quality fructus monordicae extract products, reduce material loss, shorten period of production, increase product yield, lower production cost, and is suitable for industrial production. The mogroside V content in the fructus monordicae extract produced by the method is more than or equal to 60%; the fructus monordicae extract has high product purity, single composition, pure white color, good color and taste, fresh and cool sweet taste like that of sugar, simultaneously overcomes the technical problem for industrial production of the high-content and high-quality fructus monordicae extract, and successfully realizes large-scale production.

The invention provides a method for preparing titanium white. The method comprises the following steps of: preparing titanium solution from high titanium hydrochloric acid leaching residue, which is prepared from a titanium iron material through a hydrochloric acid leaching method, serving as a raw material or one of raw materials through acidolysis by using sulfuric acid; oxidizing the titanium solution, performing organic extraction and purification, and hydrolyzing to obtain metatitanic acid; and performing washing, salt treatment, calcination and surface treatment on the metatitanic acid to prepare the titanium white. According to the method, hydrochloric acid composite system solution containing chlorate is subjected to diffluent disposal and is recycled after the titanium iron material is leached, and is organically matched with a cyclic process of an organic extraction and purification and sulfuric acid system of the titanium solution, so that the titanium solution treatment process and the cost are reduced; and since the used hydrochloric acid, sulfuric acid and organic extraction agent can be recycled, ferrous sulfate (green vitriol) is not produced; and thus, the discharge of dilute sulfuric acid and acidic wastewater is effectively reduced, and the quality of the titanium white is obviously improved. According to the method provided by the invention, high efficiency, cleanness, low cost, low energy consumption and low waste discharge effects of an entire flow are realized; a novel process technology is provided for producing the titanium white by a sulfuric acid method; and fine grained rock type ilmenite with high calcium and magnesium content at the Panxi area can be effectively utilized.

The invention discloses a special saline-alkali-soil improvement fertilizer prepared by modification with flue gas desulfurization gypsum and a preparation method thereof. The special improvement fertilizer comprises the following components in parts by weight: 40-80 parts of flue gas desulfurization gypsum, 1-3 parts of citric acid, 0.5-1.5 parts of magnesium sulfate, 1-5 parts of aluminum sulfate, 1-5 parts of ferrous sulfate, 10-30 parts of weathered coal, 10-20 parts of cattle manure or chicken manure, 1-5 parts of urea, 0.5-2.5 parts of ammonium sulfate, 1-3 parts of potassium sulfate, 1-3 parts of monoammonium phosphate, 0.1-0.5 part of zinc sulfate, 0.1-0.5 part of manganese sulfate and 3-10 parts of bentonite. The fertilizer is reasonable in design, provides an effective solution for inland saline-alkali soil of China, and has higher practical value and wide market prospects.

The invention relates to a micro-nano-alloy bimetal composite material preparation technique and a device thereof; one of wear-resistant and corrosion-resistant ferrous metal material, non-ferrous metal material and various self-fluxing alloy is prepared into power; then, the powder is added with less than or equal to 0.8% of one or combination in CeO2, Y2O3 and La2O3, 0.3-1.5% of MgO, 0.3-1.8% of CaF2, 0.0-1.5% of B, 0.1-0.8% of Nb, 0.1-1.0% of Ti, 0.1-2.0% of grain refining and recrystallization inhibitor according to the mass percent; or the powder is added with 1-40% of carbide, nitride, micro-nano or nano particles of boride; and the mixture is put into a high-energy stirring ball grinding mill for grinding and ball milling, so that the micro-nano or nano alloy powder can be prepared. A variable frequency induction heating device is adopted for cladding and melting vacuum or inert gas, so that a workpiece can be melted and coated with a micro-nano or nano scale alloy cladding layer which has the grain size of 0.1-35mm and is wear-resistant and corrosion-resistant, and the bimetal composite material can be prepared. The invention overcomes the defects in various coating techniques in China at present, can complete the preparation of the workpiece with the cladding layer having high thickness for once, does not need repeated coating and sintering, has high material utilization rate, low machining allowance and preparation cost, simple preparation technique and high production efficiency.

The invention provides anfo explosive with low explosion velocity and a manufacturing method thereof. The anfo explosive comprises 82 to 97 percent of crushed porous granular ammonium nitrate and 3 to 7 percent of fuel oil in terms of mass. A formulation of the anfo explosive is simple, high explosive and heavy metal or heavy metal oxides are not contained, and a production process is efficient, safe and environment-friendly. Moreover, the anfo explosive has wide density adjusting range and is easy to explode; the performance of the explosive is convenient to control, the adjusting method is more, and the adjusting range is large; and the raw material sources are wide, the production cost is low, and the method is suitable for industrialized production.

The invention disclose a steel for a high-speed train axle containing niobium and titanium, and the steel comprises the chemical components based on the mass percentage (wt%): 0.25-0.32 wt% of C, 0.15-0.40 wt% of Si, 0.60-0.90 wt% of Mn, no more than 0.015 wt% of P, no more than 0.010 wt% of S, 1.00-1.20 wt% of Cr, 0.20-0.35 wt% of Mo, 0.15-0.30 wt% of Ni, 0.02-0.04 wt% of V, 0.015-0.040 wt% of Nb, 0.10-0.30 wt% of Cu, 0.0008-0.0050 wt% of B, and 0.010-0.050 wt% of A1S, after the axle prepared by the components is thermally treated, the grain size is no less than 8.5 grades, and the tissue is tempered sorbite+bainite, wherein the content of the tempered sorbite adjacent to the axle surface is about 70-90%, and the the content of the tempered sorbite at the 1 / 2 radius of the axle is about 40-60%.

The invention provides a functional coating of a pure silver layer / pure-graphite composite layer and a preparation method of the functional coating. The coating takes the pure silver layer as a basic electroplated coating and the silver-graphite composite layer as a surface covering electroplated coating. The preparation method comprises the steps of treating a base material, preparing a pre-plating silver solution, preparing a plating silver solution, preparing a silver-graphite composite plating solution, preparing a silver coating, activating the silver coating and electroplating the silver-graphite composite layer. The functional coating provided by the invention has the following technical effects: the prepared coating is excellent in electrical conductivity and has contact resistance of 18-20 micro-ohms (external torque of 5-20N.m); and the friction resistance is excellent, and the friction coefficient is 0.06-0.15 when the normal-temperature normal-pressure load is 260g. Moreover, the prepared coating has the characteristics of good thermal conductivity, corrosion resistance, sulfur resistance and relatively long mechanical life, so that the coating provided by the invention has good comprehensive performance, can satisfy outdoor working conditions of a high-pressure isolating switch, and has a great application value.

The invention discloses a novel nuisanceless foliage fertilizer which is characterized in that every 100 parts by weight of the novel nuisanceless foliage fertilizer comprises the components according to the parts by weight: 10.0-30.0 parts of biochemical fulvic acid, 25.0-40.0 parts of urea, 20.0-35.0 parts of monopotassium phosphate, 0.5-2.0 parts of ammonium molybdate, 1.5-4.0 parts of borax, 0.8-2.0 parts of bluestone, 0.1-0.5 part of matrine, 3.2-7.5 parts of auxiliary agent and the rest of filling material. A method for preparing the novel nuisanceless foliage fertilizer comprises: all the components are mixed according to the measurement, fully stirred by a stirrer and ground, and packed according to the measurement. The foliage fertilizer has multiple effects of promoting the growing development of crops, increasing both production and income, improving the quality, increasing nutrient utilization rate, controlling pests, no pollution and the like, and is especially suitable for the production of nuisanceless agricultural products. The foliage fertilizer has remarkable application effect, simple manufacturing technique, great market potential, obvious economic and social benefits and very wide application prospect.

The invention discloses a cyanide-free silver-graphene composite coating and a preparation method. The surface of a copper base material is electroplated with a silver coating and a silver-graphene coating. The preparation method of the cyanide-free silver-graphene composite coating comprises the steps of base body treatment, silver-graphene composite plating solution preparing, silver preplating and silver-graphene composite coating preparing. The cyanide-free silver-graphene composite coating has good electrical conductivity, good thermal conductivity, good abrasion resistance, a long service life, good corrosion resistance and good anti-sulfuration capacity, wherein the contact resistance is 15-30 [mu]omega (the external torque is 5-20 N.m); the heat conductivity rate is 350-500 W.m<1>.K<1>; the friction coefficient is 0.06-0.22 when the load at the normal temperature and pressure is 280 g; and the service life meet the standard between the M1 level and the M2 level of disconnector mechanical life levels in a mechanical life experiment (the clamping force is 400-600 N). The cyanide-free silver-graphene composite coating has good comprehensive performance, can meet outdoor working conditions of high-voltage disconnectors and has large application value.

The invention discloses a high-magnesium aluminum alloy state rolling preparation process, and relates to the technical field of aluminum alloy machining. The process aims to solve the problems that in an existing high-magnesium aluminum alloy machining hardening mode, the thickness and the width of a plate are limited, a stretcher with larger tensile force is needed during the tensile strength, and too many machining procedures are adopted. The process mainly comprises the steps of material proportioning, smelting, casting, soaking, sawing, surface milling, preheating, hot rolling and the like, reasonable selection of alloy components, and casting and smelting parameters is achieved, two-stage uniform heat treatment is adopted, and different hot rolling process parameters and the like areselected according to different Mg contents, so that a high-magnesium aluminum alloy plate material with excellent performance is obtained. According to the high-magnesium aluminum alloy state rolling preparation process, cold rolling is not needed, limitation to the thickness and the width is small, and stretching machining strengthening is not needed so that the production process can be simplified, the cost can be saved, and the production efficiency can be improved; and the performance of the rolled plate can be directly controlled through hot rolling, the plate can be made into hot rolled tissue, the production process is simpler and more efficient, and then the high-magnesium aluminum alloy plate material with good mechanical property and good corrosion resistance is obtained.

The invention relates to a preparation method of a dopamine modified sepiolite adsorbent. The method comprises the steps that S1, sepiolite powder is weighed and put in a beaker, a hydrochloric acid solution is added, continuous magnetic stirring is conducted, and the mixture is transferred to a Buchner funnel, repeated washing is conducted through deionized water, suction filtration is conducted, and a gel filter cake is collected; S2, the gel filter cake is transferred into a wide-mouth bottle, the wide-mouth bottle is placed in a drying oven for 12 h, the gel filter cake in the wide-mouth bottle is taken out, and grinding is conducted on the gel filter cake to obtain acid-activated sepiolite; S3, the sepiolite which is activated through acid and dopamine hydrochloride is added in a trihydroxymethyl aminomethane buffer solution, and a magnetic stirring reaction is conducted at the room temperature; S4, the deionized water is used for water washing, centrifugation is conducted for multiple times through a centrifugal machine, drying is conducted in a vacuum drier for 24 h, and the dopamine modified sepiolite adsorbent is obtained. The preparation method of the dopamine modified sepiolite adsorbent has the advantages of being simple in technology, low in cost and high in efficiency.

The invention discloses a steel for a high-speed train axle containing niobium and titanium, and the steel comprises the chemical components based on the mass percentage (wt%): 0.25-0.32 wt% of C, 0.15-0.40 wt% of Si, 0.60-0.90 wt% of Mn, no more than 0.015 wt% of P, no more than 0.010 wt% of S, 1.00-1.20 wt% of Cr, 0.20-0.35 wt% of Mo, 0.15-0.30 wt% of Ni, 0.015-0.040 wt% of Nb, 0.010-0.030 wt% of Ti, 0.10-0.30 wt% of Cu, 0.0008-0.0050 wt% of B, 0.010-0.050 wt% of A1S, the rest is iron and residue trace impurities; after the axle prepared by the components is thermally treated, the grain size is no less than 8.5 grades, and the tissue is tempered sorbite+bainite, wherein the content of the tempered sorbite adjacent to the axle surface is about 70-90%, and the the content of the tempered sorbite at the 1 / 2 radius of the axle is about 40-60%.

The invention discloses a nano calcium carbonate and styrene-butadiene rubber composition and a preparation method thereof. The weight of styrene-butadiene rubber is 20 to 40 percent of that of calcium carbonate. The product provided by the invention is the nano calcium carbonate and styrene-butadiene rubber composition with small particle sizes and uniformly distributed granularity; and the composition can remarkably improve the dispersibility of the nano calcium carbonate in the rubber, realize the nano-scale dispersion of the nano calcium carbonate in the rubber system, enhance the functional reinforcement function of the nano calcium carbonate, simultaneously further simplify a process flow, save the steps of drying, crushing and the like in a nano calcium carbonate powder preparation process, and avoid energy consumption and dust pollutions caused by the steps of drying, crushing and the like.

The invention relates to the field of probiotics, in particular to a preparation method of probiotic granules being resistance to acid and bile salt. The preparation method comprises the following steps of S1, uniformly mixing probiotic bacterial sludge with a protective agent, and performing slow stirring to obtain an emulsion; S2, adding prepared colloid liquid to the obtained emulsion, uniformly mixing and stirring the obtained emulsion with the colloid liquid, and performing slow stirring to obtain mixing liquid; S3, slowly injecting the obtained mixing liquid into a calcium chloride solution, performing a crosslinking reaction, after the mixing liquid is completely injected, performing high-speed shearing and stirring, and then performing standing to obtain mixed bacteria starch; andS4, performing freeze drying on the obtained mixed bacteria starch to obtain solids of which the water content is lower than 5%, and grinding and granulating the obtained solids by a grinding and granulating machine to obtain 20-50-mesh probiotic granules, wherein the protective agent comprises trehalose, glycerine and modified starch, and the colloid liquid comprises sodium alginate. The probiotic granules obtained through the preparation method disclosed by the invention have favorable acid resistance and bile salt resistance, and when the probiotic granules achieve intestinal tracts throughstomachs, the activity can be maintained to a great extent.

The invention belongs to the technical field of metal surface processing treatment and specifically relates to an austenitic stainless steel composite resinite integrated manufacture method. The nanometer processing technology is adopted to enable the surface of austenitic stainless steel to form nanopores, and then, a resin composition is injected into the nanopores effectively to enable the austenitic stainless steel and the resin composition to be composited efficiently to form an integrated body. The manufacture method is good in composition performance, good in stretchability, long in service life of the binding site and resistant to acid and alkali; the formed austenitic stainless steel piece can be subjected to follow-up processes of sandblasting and wire drawing, highlight, PVD colouring and electrophoresis and the like; fraction defective of the products can be reduced; processing procedure is reduced; product development efficiency and product additional valves are improved; and various procedure development cost of the product is reduced.

The invention relates to a production technology of tire belted layers of a vehicle and a device thereof, particularly a production technology of novel meridian tire belted layers and a device thereof. The production technology comprises the following steps: a, pre-heating steel wires; b, rubberizing a steel wire and forming a rubberized steel wire through an extrusive process, or distributing a plurality of steel wires at certain intervals and rubberizing, and forming a rubberizing steel wire through the extrusive process; c, cooling the rubberizing steel wires; and d, coiling the rubberizing steel wire belt at certain intervals to form a belted layer. The production technology can be completed by the following devices: a steel wire cord spindle frame, a preheating device, an extrusive device, a cooling device, a towing device and a winding device which are arranged in sequence, wherein, a distance-adjusting device, a cutting device and a winding plate are mounted on the winding device in sequence. The invention provides a simple and efficient production technology for the mass production of zero belted-layer tires.

The present invention discloses a whitening and moisture supplementing mask, which contains (1) a mask base cloth, and (2) a mask essence, wherein the mask essence comprises (a) a water-soluble thickener, (b) a humectant, (c) a whitening composition and (d) a water-containing carrier, wherein the humectant comprises a polyol, sodium hyaluronate and hydroxyethylurea, and the whitening composition comprises papain, a narcissus bulb extract and a tropaeolum majus extract. According to the present invention, the whitening and moisture supplementing mask can accelerate the peeling of old and waste skin cutin, promote the skin surface layer regeneration, inhibit the tyrosinase activity, inhibit the melanocyte division, reduce the melanogenesis, and achieve the good whitening effect from multiple angles.

The invention discloses an extraction method for directly separating feed or edible leaf protein of clover and relates to an extraction method of leaf protein of clover; the extraction method of the leaf protein of the clover comprises the following steps: the edible leaf protein needs to be processed secondarily, decolorized and fishy removed, the technology of decolorization and fishy smell removing of the leaf protein of the clover is still in the researching stage and the technique is not mature; the invention provides an extraction method for directly separating the feed or edible leaf protein of clover, which comprises the following steps: material processing, cleaning, chopping, beating, juicing, leaf protein concentration, condensate separation of leaf protein, drying and storing; and the extraction method of the invention can directly separate the feed or the edible leaf protein of clover without needing the technique of decolorization and fishy smell removing, and the like.

The invention relates to one end double power automatic switch control circuit, which comprises the following parts: relay connected to power, handle or automatic status conversion and indication switch; self-copy or interacting copy status indication lamp to power; light diode LED, diode D5, resistance R1 to form main power indication circuit; light diode LED15, resistance R4 and diode D20 form prepare power indication lamp circuit.

The invention provides an extrusion-molding method solvent-free waterborne polyurethane dispersion as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) preheating polymeric diol, diisocyanate, micromolecular diol, a low-melting-point dihydroxy-terminated Y type side chain hydrophilic chain extender and a catalyst respectively, then inputting the materials into a mixer to disperse and mix the materials, and inputting the mixture into a twin-screw reactor to perform a reaction in order to obtain polyurethane melt; (2) injecting the polyurethane melt into a shear pump, injecting water containing a neutralizing agent into the shear pump, and performing shearing and dispersion at a high temperature of 120 to 200 DEG C under the pressure of 0.2 to 1.5Mpa; (3) cooling and decompressing, adding a chain extender, and reacting while stirring to obtain the solvent-free waterborne polyurethane dispersion. The method provided by the invention is environmentally friendly; by adopting the method, the cohesive energy of a product is increased greatly, the production process is efficient, and the performance of the waterborne polyurethane can be improved greatly.

The invention relates to a magnetic epoxy resin powder solvent and a method for packaging an inductor by the utilization of the magnetic epoxy resin powder solvent. The magnetic epoxy resin powder solvent is characterized by comprising the following substances: 25-50% of epoxy resin powder coating material, 5-25% of curing agent, 20-50% of soft magnetic ferrite core ground powder particles and 20-50% of organic solvent. The method for packaging the inductor by the utilization of the magnetic epoxy resin powder solvent includes the following steps: performing full diluting with the organic solvent, enabling an inductance coil to face down, immersing the inductance coil into the magnetic epoxy resin powder solvent, then pacing the inductance coil on a baking rack to bake the inductance coil for 5-30min, sending the inductance coil into an oven, setting the temperature at 80-120DEG C, and baking the inductance coil for 1-3 hours. The magnetic epoxy resin powder solvent has the advantages of being capable of promoting the inductance of the inductor and saturation resistance of a current, low in consistence, good in mobility, easy to use for coating, free of sticking, and capable of promoting production efficiency; when heated, the magnetic epoxy resin powder solvent is directly solidified and will not flow, and thus uniformity of a coating can be kept; the inductance value is made to be stable, the change of error is small, quality is more reliable, and the magnetic epoxy resin powder solvent is mainly applicable to packaging of a direct-insertion inductor.

The invention discloses a steel for a high-speed train axle containing niobium and titanium, and the steel comprises the chemical components based on the mass percentage (wt%): 0.25-0.32 wt% of C, 0.15-0.40 wt% of Si, 0.60-0.90 wt% of Mn, no more than 0.015 wt% of P, no more than 0.010 wt% of S, 1.00-1.20 wt% of Cr, 0.20-0.35 wt% of Mo, 0.15-0.30 wt% of Ni, 0.02-0.04 wt% of V, 0.010-0.030 wt% of Ti, 0.10-0.30 wt% of Cu, 0.0008-0.0050 wt% of B, and 0.010-0.050 wt% of A1S; after the axle prepared by the components is thermally treated, the grain size is no less than 8.5 grades, and the tissue is tempered sorbite+bainite, wherein the content of the tempered sorbite adjacent to the axle surface is about 70-90%, and the content of the tempered sorbite at the 1 / 2 radius of the axle is about 40-60%.

The invention belongs to the field of water-in-oil type emulsion, and discloses stable water-in-oil type Pickering emulsion based on phytosterol, and a preparation method and application of the stablewater-in-oil type Pickering emulsion based on phytosterol. The water-in-oil type Pickering emulsion is prepared by the following method including the steps of dispersing the phytosterol in anhydrousalcohol, performing heating for dissolving to obtain an ethanol solution of the phytosterol, then mixing the obtained ethanol solution of the phytosterol with water, then removing ethanol to obtain aqueous dispersion liquid of phytosterol granules, and performing mixing and homogenizing on the aqueous dispersion liquid and an oil phase to obtain the water-in-oil type Pickering emulsion; or dryingthe aqueous dispersion liquid to obtain phytosterol powder, dispersing the phytosterol powder into the oil phase, then mixing the oil phase with the phytosterol powder, with the water, and then performing homogenizing to obtain the water-in-oil type Pickering emulsion. Compared with a preparation method of a traditional water-in-oil type granule stabilizing agent, the method disclosed by the invention has the advantages that without adding a surfactant or chemical modification, the water-in-oil type Pickering emulsion good in stability can be produced, the technology is simple, and industrialization is easy to realize.

The invention discloses a Liupao tea automatic pile fermentation strain composition which comprises a base bacterium solution, a consolidation bacterium solution and an aging bacterium solution. The bacterium solutions contain Aspergillus awamori, Aspergillus niger, Aspergillus tubingensis, penicillium citrinum, Aspergillus fumigatus, Eurotium rubrum, Aspergillus versicolor, Eurotium amstelodami, Paecilomyces variotii, Eurotium niveoglaucum, saccharomycetes and other beneficial microorganisms. On such basis, the inventor establishes the corresponding fermentation technique and equipment; and on the premise of not changing the upstream and downstream main production techniques of the original pile fermentation, the beneficial microorganism florae are added to control the growth of harmful infectious microbes, thereby enhancing the fermentation efficiency, shortening the pile fermentation period, and keeping the special thick flavor of the traditional Liupao tea. The pile fermentation automatic control system is utilized to dynamically monitor and control the changes on temperature, humidity and florae in the whole fermentation process, thereby implementing automation, continuity and high efficiency of the production technique, and ensuring the Liupao tea product to have safe and reliable quality and high and stable quality.

The invention discloses a lightweight fireproof building brick and a preparation method thereof. The brick is prepared from the following raw materials in parts by weight: 40 to 80 parts of industrial waste residues, 40 to 80 parts of building debris, 80 to 120 parts of wastewater, 10 to 65 parts of sludge, 10 to 50 parts of fly ash, 10 to 40 parts of river sand, 10 to 30 parts of cement, 5 to 30 parts of clay, and 1 to 20 parts of sintering aid, wherein the weight ratio of river sand to cement to clay is 2:1:1, and the sintering aid accounts for 1 to 3% of the total weight of the raw materials. The brick has a certain strength and fireproof effect. Comprehensive garbage is taken as the raw materials, wastes are recovered and utilized, the production cost is reduced, and the environment is protected.

The present invention is plant lactobacillus in the preservation number of CCTCC No. M206033 and the biological process of preparing conjugate linoleic acid with the lactobacillus, and belongs to the field of bioengineering technology. The plant lactobacillus can grow well in aerobic condition, and during fermentation with linoleic acid substrate contacting with the lactobacillus cell, linoleic acid will be converted into conjugate linoleic acid under the action of linoleic acid isomerase combined with membrane. The bioconversion process includes the first culturing of the lactobacillus strain in MRS culture medium containing 0.5mg / ml LA and the subsequent inoculation of the culture to MRS culture medium containing free linoleic acid in pH 6.5 at 37 deg.c with or without potassium phosphate buffering solution for culturing to produce conjugate linoleic acid.

The invention discloses a preparation method of a duck simulated intestinal fluid. The method comprises the following steps of: putting collected duck intestinal chyme in a reagent bottle to shake uniformly, putting in a centrifuge bottle to perform centrifuging treatment, and collecting a supernatant fluid; filtering the supernatant fluid, freezing and concentrating into a mixed concentrated liquid; after dialyzing the mixed concentrated liquid and removing impurities, freezing and drying into lyophiled powder; measuring the activities of alpha-amylase, lipase, trypsin and chymotrypsin in the lyophiled powder, and measuring the activities of corresponding digestive enzymes in the reagent level alpha-amylase, lipase, trypsin and chymotrypsin; and according to the principal that the gross activities of various digestive enzymes in the duck simulated intestinal fluid and the targeted duck intestinal fluid are equal, adding corresponding capacity reagent level alpha-amylase, corresponding weight reagent level lipase, corresponding weight reagent level trypsin, corresponding weight reagent level chymotrypsin and a corresponding capacity water solution in the lyophiled powder with a set weight. The method can be carried out in a low-cost way, and can also be used for preparing the duck simulated intestinal fluid basically homologous with four digestive enzymes in a real duck body.

The invention provides a heat treatment process of a high-speed train axle containing niobium. The axle contains the following chemical components: 0.25-0.32 wt% of C, 0.15-0.40 wt% of Si, 0.60-0.90 wt% of Mn, no more than 0.015 wt% of P, no more than 0.010 wt% of S, 1.00-1.20 wt% of Cr, 0.20-0.35 wt% of Mo, 0.15-0.30 wt% of Ni, 0.015-0.060 wt% of Nb, 0.10-0.30 wt% of Cu, 0.0008-0.0050 wt% of B, 0.010-0.050 wt% of Als, and the balance of iron and residual trace impurities. The heat treatment process of the axle is as below: (1) normalizing at 900-950 DEG; (2) quenching at 880-930 DEG; and (3) tempering at 620-680 DEG C.

The invention discloses a continuous manufacturing method of para-aramid-polyacrylonitrile compound pulp-shaped fiber (hereinafter referred to as para-aramid-acrylic compound pulp), comprising the steps of: inputting and pumping para-aramid chopped fiber, polyacrylonitrile chopped fiber internally rich in microfiber and water into grinding equipment; and continuously mixing, dispersing and grinding under a high chopping rate to form the highly fibrillated para-aramid-polyacrylonitrile compound pulp-shaped fiber which has even structure and abundant surface hair feather, wherein the whole process is completed in one step, the process is continuous and simple and the energy consumption is lower. The compound pulp replaces asbestos and is applied to friction sealing materials, not only has the properties such as high intensity, high mould and high temperature resistance of the para-aramid, but also has the excellent compound property of the polyacrylonitrile, greatly reduces the cost of replacing the asbestos, and has higher cost performance.

The invention discloses a botanical bactericidal preparation. The botanical bactericidal preparation comprises the following components, by weight, 0.1-50% of thymol, 5-30% of an emulsifier, 0.1-20% of azone, 10-60% of ethanol, and 0.1-84.8% of water, and 1ml of the botanical bactericidal preparation comprises Trichoderma spp with the number of 1*10<7-9>. The invention also discloses a preparation method of the botanical bactericidal preparation and an application of the botanical bactericidal preparation in the blight control. The thymol-based botanical bactericidal preparation of the invention, which has effective components from plants with the insecticidal function or extracts from the plants, allows the blight of crops to be effectively controlled, and has the multiple efficacies of crop growth promotion, yield and income increase, quality improvement, nutrient utilization rate improvement, pest control, no pollution, and the like, is suitable for the production of nuisance-free,green and organic agricultural products.