26results about How to "Simple production method" patented technology

The invention relates to the technical field of metallurgical industry, in particular to a production method of high-quality nickel for aviation-grade nickel-based superalloy, which comprises the following steps: pretreating raw materials; wherein the raw material is Ni9920 electrolytic nickel; carrying out vacuum induction melting on the pretreated raw materials, carrying out primary degassing and impurity removal, and casting an electrode bar; carrying out vacuum consumable remelting secondary impurity removal on the cast electrode bar to form a cast bar; performing plasma remelting on the casting rod for three times of deep impurity removal; according to the method, Ni9920 electrolytic nickel is used as a raw material, after the raw material is pretreated, a triple impurity removal process is carried out through vacuum induction melting, vacuum consumable remelting, plasma remelting and the like, the whole production process is carried out in a vacuum or argon filling state, impurity elements in the electrolytic nickel are deeply removed, and the quality of the electrolytic nickel is improved. The content of impurity elements in the electrolytic nickel is reduced to the nickel standard for aerospace, and Ni9920 electrolytic nickel is used as the raw material, so that the production cost is low, and the profit margin of high-quality nickel is improved.

The utility model discloses an integrated disinfection plate and a disinfection cabinet with the same, the disinfection plate comprises a mounting plate, the mounting plate is provided with an air passing channel and an air outlet channel, an air inlet part is integrally formed on the mounting plate, the air inlet part is provided with an air inlet channel, and the air outlet end of the air inlet channel is communicated with the air inlet end of the air passing channel. The utility model has the following advantages and effects: the scheme utilizes a new mechanical structure, and has the effects of reducing the production cost and improving the production efficiency and the drying performance.

A packaging tube has a tube head, which is produced preferably by compression molding, and which is integrally connected in the region of a shoulder to a separate tube body, which is produced preferably from a multilayer laminate, wherein an inverted tube cap (11) integrally formed with the tube head (07) is arranged as a part of the tube head (07) adjoining a tube neck (10) of the tube head (07) in the longitudinal direction (L), the tube neck (10) and the tube cap (11) being connected to one another via a predetermined breaking point (12) of the tube head (07).

The invention discloses a production method for co-producing thionocarbamate and mercaptoethanol by using ethylene oxide as a raw material, which comprises the following steps: dissolving a proper amount of xanthate with a structure as shown in a formula I in pure water to prepare a xanthate aqueous solution with the concentration of 5-30%; ethylene oxide with the structure as shown in the formula II is introduced into the xanthate aqueous solution for a reaction, and a xanthate ethanol ester intermediate with the structure as shown in the formula III is obtained; carrying out heating reaction on the xanthic acid ethanol ester intermediate and fatty amine to obtain a mixture of thionocarbamate as shown in a formula IV and mercaptoethanol as shown in a formula V; and separating the thionocarbamate and mercaptoethanol mixture to obtain pure thionocarbamate and mercaptoethanol respectively. According to the method, ethylene oxide is used as a reaction raw material, water is selected as a solvent, no catalyst is needed, the reaction is more environmentally friendly and energy-saving, the reaction rate is high, the conversion efficiency is high, less waste liquid is generated, and the simplified production process can co-produce mercaptoethanol industrial raw materials while producing thionocarbamate flotation reagents.

The present invention relates to the technical field of mechanical equipment, and in particular to a double-wire guardrail mesh resistance welding machine, which can effectively simplify its production method, improve the degree of automation, save manpower, and improve work efficiency by automatically feeding and welding the double-wire guardrail mesh. At the same time, the uniformity of the distribution of welding points on the mesh is improved, the aesthetics and strength of the mesh are improved, the production quality of the mesh is effectively improved, and the practicality and reliability are improved; the machine comprises a first main welding machine, a second main welding machine and an automatic mesh dropping device, the right end of the first main welding machine is connected to the left end of the second main welding machine, and welding mechanisms are arranged on the right side of the first main welding machine and the right side of the second main welding machine.

The present application relates to a kind of binding agent, solder matrix and self-fusion diamond heat sink heat conducting sheet and preparation method, the raw material composition of binding agent is 15-40wt% polyvinylpyrrolidone, 0.5-7wt% BTA, 0-5wt% PG, 1-8wt% xanthan gum, 1-10wt% methyl cellulose, 0.5-12wt% polyamide wax and 0.1-1wt% polydimethylsiloxane, the rest is glycerol. The composition of solder is 60-75wt% silver, 20-34wt% copper, 1-6wt% titanium and 0.5-1wt% chromium. The above-mentioned solder and binding agent are prepared into solder matrix according to the ratio of 85-93wt%:7-15wt% respectively. In the process of welding with diamond, the above-mentioned solder matrix can form a closely combined binding layer between diamond and copper, and greatly improve the thermal conductivity of material. The thermal conductivity of diamond copper composite material of the present application reaches 960W / (m·K) at most;Process stability, the performance index repeatability of finished product is very good;Process is simple, production mode is simple, no operation difficulty, not limited by equipment and site, process control and industrialization popularization are facilitated.

The invention relates to a composite phosphorus removal agent as well as a preparation method and application thereof. The composite phosphorus removal agent comprises 45wt%-75wt% of a modified inorganic high-molecular coagulant, 2wt%-15wt% of a modified natural high-molecular polymer, 5wt%-40wt% of inorganic salt, 0.5 wt%-5wt% of a coagulant aid and 0.1 wt%-0.5 wt% of a solvent, wherein the modified inorganic polymer coagulant comprises modified polyaluminum chloride and / or modified polyaluminum ferric chloride; the basicity of the modified inorganic polymer coagulant is 40-85 wt%; the modified natural high-molecular polymer is prepared from one or more of a dimethyl diallyl ammonium chloride-acrylamide-modified starch copolymer and a methacryloyloxyethyl trimethyl ammonium chloride-acrylamide-modified starch copolymer; the relative molecular mass of the modified natural high-molecular polymer is 50-450 million. The composite water purifying agent disclosed by the invention is low in cost and simple in production and preparation method, does not introduce excessive metal salts, does not cause secondary pollution and does not cause excessive metal in a water body, and has a better effect of removing phosphorus and turbidity under the condition of low water temperature.

The application discloses a preparation method of a pyrrolidone derivative. Under the action of a non-precious bimetallic multifunctional catalyst, an acetylenic acid derivative shown in formula I is reacted with an amine, a nitro compound or a nitrile compound shown in formula II in a reaction solvent under the heating and stirring of hydrogen gas to prepare a pyrrolidone derivative shown in formula III, and a reaction formula is as follows: the non-precious bimetallic multifunctional catalyst is a nitrogen-doped carbon-based carrier NC derived from a metal-organic framework material ZIF-8 and an effective active ingredient embedded on the carrier NC; the effective active ingredient comprises two metals, one metal is Co, and the other metal is any one of Ni or Cu. The yield of the pyrrolidone derivative synthesized by the method can reach 77% to 100%. The method has the advantages of simple process, high selectivity of the target product, cleanness and environmental protection, small catalyst consumption, low cost, simple catalyst preparation, high catalytic stability and suitability for industrial production.

The invention discloses a single-layer effect alkali-decrement light-weight quick-drying antibacterial weft knitting fabric and a production method thereof. The single-layer effect alkali-decrement light-weight quick-drying antibacterial weft knitting fabric is formed by interweaving 40S microporous blended yarns and 50D / 36F Dupont SORONA two-component fully-drawn polyester FDY (Fully Drawn Yarn) filaments, wherein the 40S microporous blended yarns are woven with the 50D / 36F Dupont SORONA two-component fully-drawn polyester FDY filaments; the microporous blended yarn covers 50D / 36F Dupont SORONA two-component fully-drawn polyester FDY filaments and is formed by interweaving through a fine weaving process, and a plain front coil layer and a plain back coil layer are formed; the yarn weight ratio of the 40S microporous blended yarns to the 50D / 36F Dupont SORONA two-component fully drawn polyester FDY filaments is (70%-74%): (26%-30%); according to the single-layer effect alkali-decrement lightweight quick-drying antibacterial weft-knitted fabric, the processes of alkali decrement, acid pickling, antibiosis and the like are carried out in the dyeing and finishing process, so that the surface touch of the fabric is softer and more skin-friendly, a cloth cover style between two hues is formed, in addition, the single-layer effect alkali decrement lightweight quick-drying antibacterial weft-knitted fabric is endowed with the functions of light weight, quick drying, antibiosis, deodorization, moisture absorption and breathability, and the fabric is more comfortable and healthy to wear.

The invention relates to bacillus C8 for reducing chromium pollution of soil and application thereof, belongs to the technical field of microorganisms, and provides bacillus (Bacillus sp.) C8 for reducing chromium pollution of soil, the bacillus C8 is preserved in China General Microbiological Culture Collection Center on October 12, 2024, the preservation address is No. 3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC NO.3669. The preservation number is CGMCC (China General Microbiological Culture Collection Center) The invention provides application of bacillus C8 in reducing the chromium content of soil. The bacillus C8 is used for reducing chromium pollution in soil, the production cost is low, the production method is simple, the chromium control effect is good, and the method can be applied to sunflower planting in chromium-polluted farmland in a large area.

The invention discloses a preparation method, device and application of a root-promoting polyglutamic acid derivative, belonging to the field of agricultural technology. The root-promoting polyglutamic acid derivative is modified with indoleacetic acid and phospholipid at the same time, and the preparation method is as follows: after polyglutamic acid is mixed with sodium azide and acetonitrile for reaction, activated HBTU and a mixture of indoleacetic acid and triethylamine are added; after ethylene glycol is mixed with p-nitrophenyl chloroformate for reaction, a mixture of phospholipid and triethylamine is added; the above solutions are mixed for reaction, ultrafiltration is performed after reduced pressure concentration, washing with acetone, filtering, and vacuum freeze drying. The present invention obtains a polyglutamic acid derivative by chemically accessing indoleacetic acid and phospholipid on polyglutamic acid, which can shorten the rooting time, promote plant rooting, and can also provide nitrogen, phosphorus and other elements required by plants at the same time, promote plant growth and development, and improve crop yield and quality.

The production method comprises the following steps: cutting off a wormwood raw material, removing impurities, washing, feeding the wormwood raw material into a cone mill through a wormwood sheet pump, grinding the wormwood raw material until the pulp concentration is 2-4%, concentrating the ground pulp to 20-35% by using concentration equipment, enabling white water to flow back to a hydraulic grass washing machine for concentration adjustment, and feeding the ground pulp into a two-stage pressure screen for screening. The preparation method comprises the following steps: feeding unbleached wood pulp with the beating degree of 38-42 degrees SR into a pulp preparation tank according to a proportion, adjusting the proportion of the wood pulp, adding a dispersing agent (CMC with the dosage of 0.5-2%), a softening agent (organosilicon with the dosage of 0.5%) and a cylinder separating agent (with the dosage of 0.1%) into the pulp preparation tank, controlling by adopting DSC in the process, and controlling the proportion of the prepared pulp and chemicals on line by a flow meter to obtain the wormwood paper. According to the wormwood paper, wormwood fibers are coated with a natural-color wood pulp fiber network structure, the characteristics of natural components of wormwood are restored to the maximum extent, the wormwood paper is quantitatively controlled in the category of common paper for daily use and is 14-20 g / m < 2 >, and the wormwood paper becomes various types of paper for daily use required by the market through post-processing procedures such as embossing and compounding.

The invention provides a high-temperature-resistant shielding agent modified aerogel composite material and a preparation method thereof. The preparation method comprises the following steps: S1, preparing silicon-based sol; s2, mixing a base catalyst with the silica-based sol, and putting the mixture into the fiber reinforcement to obtain a fiber reinforcement wet gel composite material; s3, aging the fiber reinforcement wet gel composite material in a constant temperature device; s4, performing solvent replacement aging on the aged fiber reinforcement wet gel composite material; and S5, performing supercritical carbon dioxide drying to obtain the silicon dioxide aerogel fiber reinforced composite material. According to the prepared silicon dioxide aerogel composite material, the related problems caused by the fact that a high-temperature-resistant shielding agent is not prone to being dispersed and attached to the surface in a traditional technology are solved, the prepared silicon dioxide aerogel composite material has the lower heat conductivity coefficient, the higher temperature resistance and the excellent heat insulation and flame retardance, the production method is simple, the production period is short, and the production cost is low. The continuous batch production can be realized, and the application field of the silicon dioxide aerogel composite material is widened.

The invention discloses a method for producing distillation-free biodiesel from low-acid-value waste oil and fat, which comprises the following steps: degumming the low-acid-value waste oil and fat, and removing metal ions to obtain first oil and fat; dehydrating the first grease and removing low boiling points to obtain second grease; performing molecular distillation deacidification on the second grease to obtain third grease; performing transesterification on the third grease and methanol under the action of a base catalyst to obtain fourth grease; dealcoholizing the fourth grease to obtain fifth grease; washing the fifth grease to obtain sixth grease; and dehydrating the sixth grease to obtain the distillation-free biodiesel. The production method is simple and low in energy consumption, the biodiesel does not need to be distilled, and the fatty acid methyl ester content of the obtained biodiesel is larger than or equal to 96.5%.

The invention relates to the technical field of phase change energy storage materials, in particular to a high-performance and high-thermal-conductivity composite phase change material and a preparation process and application thereof. The invention relates to a high-performance and high-thermal-conductivity composite phase change material, which is prepared from the following materials in parts by weight: 5 to 50 parts of PCM, 70 to 150 parts of foam graphite composite PCM particles, 0.01 to 1 part of nucleating agent, 1 to 5 parts of high-thermal-conductivity filler and 5 to 30 parts of polyurethane. The invention provides a high-performance and high-thermal-conductivity graphite composite phase-change material, aiming at solving the problem of phase separation of a solid-liquid composite phase-change material which takes graphite as a main thermal-conductivity material in related technologies. And the thermal conductivity is improved to 15 times or more of that of a pure phase-change material under the condition that the phase-change latent heat is slightly reduced while the phase-change material has certain fluidity, and the phase-change material has a wide application prospect in the fields of medical treatment, military industry, aviation, ships, daily necessities and the like.

The invention provides a traditional Chinese medicine composition for treating non-erosive gastroesophageal reflux as well as a preparation method and application thereof, and belongs to the technical field of traditional Chinese medicines. On one hand, the invention provides a traditional Chinese medicine composition formula for treating non-erosive gastroesophageal reflux; secondly, the invention provides a traditional Chinese medicine composition for treating non-erosive gastroesophageal reflux. Thirdly, the invention provides a preparation method of the traditional Chinese medicine composition for treating non-erosive gastroesophageal reflux. In the fourth aspect, the invention further provides application of the traditional Chinese medicine composition in preparation of medicine for treating non-erosive gastroesophageal reflux.

The invention provides a grinding wheel and a production method and application thereof. The grinding wheel comprises the following raw materials in parts by weight: 15-35 parts of a composite adhesive, 70-100 parts of a grinding material, 5-15 parts of a self-adaptive friction regulator and 6-10 parts of a wetting agent. The grinding wheel is high in compressive strength, good in self-sharpening performance, low in average friction coefficient of a grinding pair interface when used for grinding, high in grinding amount and large in grinding ratio. The production method of the grinding wheel comprises the following steps: (1) material mixing: firstly mixing the grinding material, the self-adaptive friction regulator and the wetting agent, and then mixing the mixed wet material with the composite adhesive; and (2) forming: putting the mixed material obtained in the step (1) into a forming mold, carrying out compression molding, demolding and then carrying out curing treatment. The production method is simple, the defects of the grinding wheel can be effectively reduced, the compressive strength of the grinding wheel is improved, and the service life of the grinding wheel is prolonged.

The invention relates to the field of biological pharmacy, in particular to fusion protein, a nano vaccine and application thereof. The fusion protein provided by the invention comprises a fusion protein 1 and / or a fusion protein 2; the fusion protein 1 is prepared from a SpyTag protein and an Rv1498A protein; and the fusion protein 2 comprises a SpyCatcher protein and a gp350 protein. A flavin binding protein Rv1498A in a mycobacterium tuberculosis dodecin-like family is used as a carrier protein, a distal membrane end and a proximal membrane end of an EB virus gp350 extracellular domain are respectively displayed on the surface of the Rv1498A by utilizing a SpyTag-SpyCatcher technology, two immunogenic compounds are obtained, high expression quantity is realized while correct modification and folding of an antigen are ensured, and the EB virus gp350 extracellular domain immunogenic protein Rv1498A can be used for preparing the EB virus gp350 extracellular domain immunogenic protein Rv1498A and the EB virus gp350 extracellular domain Rv1498A immunogenic protein Rv1498A and the EB virus gp350 extracellular domain Rv1498A. And the nano-particle vaccine prepared by the aid of an adjuvant is proved to have better immunogenicity in a mouse body.

The application belongs to the technical field of genetic engineering, and provides a method for promoting production of phenoxazine-1-carboxylic acid by limiting competition pathways of phenoxazine synthesis. The application takes high-yield strain QPCA-7 as a starting strain, limits the synthesis pathways of salicylic acid, siderophore and the like of phenoxazine, and realizes the improvement of the yield of phenoxazine-1-carboxylic acid of the strain. ycaC The application obtains an engineering strain by non-scarring knockout of the gene for limiting the synthesis of siderophore in Pseudomonas, and the strain is named QPCA-8, and the yield of phenoxazine-1-carboxylic acid of the strain is improved. pabC The application knocks out the gene for limiting the production of salicylic acid in Pseudomonas on the basis of QPCA-8, and the yield of phenoxazine-1-carboxylic acid of the strain is improved.

The invention discloses a production method of mesophase pitch. The method comprises the following steps: (1) performing countercurrent contact on catalytic slurry oil and an extraction solvent, and extracting under a supercritical condition to obtain an extraction component; (2) mixing naphthalene asphalt, the extraction component in the step (1) and an auxiliary agent, and carrying out modulation treatment to obtain an aromatic hydrocarbon-rich mixture; (3) carrying out reduced pressure distillation on the aromatic hydrocarbon-rich mixture in the step (2) at the segmentation temperature of 375-390 DEG C, and separating to obtain a heavy component and a light component I; (4) mixing the light component I in the step (3) with benzyl alcohol, contacting with an inert solid filler, and treating to obtain a treated light component II; and (5) carrying out co-carbonization treatment on the light component II obtained in the step (4) and the heavy component obtained in the step (3) in an inert atmosphere to obtain the mesophase pitch. The method not only integrates the advantages of the petroleum-based raw material and the naphthalene-based raw material, but also can obtain the mesophase pitch with high mesophase content, lower softening point and low content of impurities such as quinoline insoluble substances.

The invention discloses a production method of a chicken feed for increasing the egg yield of laying hens. The chicken feed comprises the following components in parts by weight: 80-100 parts of corn, 20-40 parts of rice bran, 3-9 parts of houttuynia cordata, 2-6 parts of liquorice, 3-9 parts of shell powder, 1-3 parts of beer yeast, 4-10 parts of cuttlefish liver powder, 2-6 parts of methionine, 2-4 parts of lysine, 1-5 parts of betaine, 4-10 parts of L-ascorbic acid-2-phosphate, 1-3 parts of multivitamins, 2-5 parts of folic acid and 10-20 parts of corn protein powder. The production method is simple, the produced chicken feed is rich in nutrition and easy to absorb, the laying rate of laying hens can be increased, meanwhile, the survival rate of chickens can be increased, and chicken is made to be more elastic, more delicious in taste and better in mouthfeel.

The present invention discloses a conductive slurry for coating and a preparation method thereof, the method comprising: step 1, weighing each raw material; step 2, mixing graphene material and conductive carbon black, adding a first dispersant, and stirring evenly; step 3, heating water, adding a second dispersant, stirring evenly, adding the mixture to an aqueous solution, and stirring and mixing evenly; step 4, adjusting the pH value of the mixed solution to neutrality with a regulator; step 5, adding an adhesive to the mixed solution, continuing to stir evenly, and obtaining a mixed slurry; step 6, adjusting the viscosity of the mixed slurry with a thickener; step 7, coating the slurry on a cloth and drying it; step 8, testing the conductivity of the coated cloth and the wear-resistant effect of the conductive coating. The present invention also provides a conductive slurry for coating prepared by the method. The present invention prepares a conductive carbon slurry for coating process, the coating has strong fastness, is not easy to fall off, has good conductive effect, and can meet the corresponding conductive requirements.

The invention discloses a phosphorus-silicon modified anhydride curing agent and a cured resin composition, and the phosphorus-silicon modified anhydride curing agent comprises the following raw materials in parts by mass: 80-90 parts of anhydride, 5-20 parts of hydroxyl-terminated silicone oil, 10-20 parts of a hydroxyl organic phosphorus compound and 0.1-2 parts of a catalyst. The curing agent has the following advantages: (1) the flame retardance of the epoxy resin curing agent is improved (the limit oxygen index of epoxy resin can reach 33.6%, and the vertical combustion (UL94) level can reach V-0 level), and meanwhile, the impact strength of the epoxy resin is remarkably improved; (2) the common defects of migration, moisture absorption and the like of additive flame retardants are prevented; and (3) the curing agent is used for preparing the epoxy composite material, so that the halogen-free flame retardance of the epoxy resin is realized, and the composite material is endowed with good heat resistance and flexibility.

The invention discloses a method for using a calcium-silicon clay-based recycled aggregate production device. The calcium-silicon clay-based recycled aggregate production device comprises: a binder silo, an additive silo, an admixture silo, a crushing device, a stirring device, a mixing material conveyor belt, an extrusion molding device, a calcium-silicon clay-based recycled aggregate silo, an automatic metering unit, and a control system; a mud cake is transported to a loading hopper of a crushing device through a feeding device, and an admixture of the admixture silo is added to a loading port through a control system according to production needs; the crushed mud cake is weighed through the control system and transported to a mixing device through a bucket elevator, and the weighed binder and additive are added to the mixing device in sequence and stirred; the stirred mixing material is transported to the extrusion molding device through a mixing material conveyor belt, and the produced and molded calcium-silicon clay-based recycled aggregate enters the calcium-silicon clay-based recycled aggregate silo. The method for using the invention is simple, does not require drying, and has low cost.

The preparation method comprises the following steps: firstly, taking graphite as a base to react with concentrated hydrochloric acid, sodium sulfate and potassium permanganate, then adding sodium hypochlorite, monoethanolamine and o-chloro-p-nitroaniline, and adopting a method of adjusting the pH value to obtain graphene oxide beneficial to a good reaction in the next step; then reacting with phosphorus pentoxide, methanol and oil-based primary amine, and adopting a two-step pressure-dividing and pressure-reducing method, so as to prepare the organic graphene oxide friction reducer with good oil solubility and excellent friction reducing property. The production method is simple, low in cost, good in oil solubility and high in yield.

The present application relates to a kind of fermentation medium of mupirocin and the production method of mupirocin.The present application improves fermentation medium and the production method of mupirocin, significantly improves the fermentation level of mupirocin, and when fermenting 5-7 days, the fermentation titer reaches 12000mg / L or more.The whole production process is cheap and easy to obtain, and the fermentation process is simple and easy to operate, which is beneficial to industrial production.