103results about How to "Not easy to spoil" patented technology

The raw material composition of the invented high-concentration aqueous film-forming foam extinguishing agent includes fluorocarbon surfactant, hydrocarbon surfactant, organo-silicon surfactant, stabilizing coupler, chelating agent, spreading burn-resisting agent, bacteriostatic agent and water. It can be used for quickly extinguishing oil fire.

The invention provides a liquid milk preparation method. The method comprises the following steps of: 1, centrifugally separating a raw milk into skim milk and watery cream, and filtering the skim milk through a membrane; 2, standardly mixing the watery cream with the skim milk filtered by the membrane; 3, homogenizing the mixed milk of step 2 at 55 DEG C-65 DEG C under the homogenizing pressure of 160-220bar; and 4, carrying out ultrahigh pressure sterilizing on the homogenized milk under the ultrahigh pressure sterilizing pressure of 400-1000MPa for a pressure maintaining time of 5-20min. By utilizing an ultrahigh pressure long shelf-life liquid milk production method provided by the invention, a liquid milk thermization technology is avoided to the maximum extent, so that the energy consumption of industrial production is reduced, the active nutritional ingredients of the liquid milk can be completely reserved through a non-thermization technology, the shelf life of the liquid milk is prolonged to 45d, and the liquid milk is not easily deteriorated.

The invention discloses a high-efficiency environment-friendly foam extinguishing agent and a preparation method thereof. The high-efficiency environment-friendly foam extinguishing agent is composed of, by weight percentage, 10%-50% of a composite surface active agent, 10%-30% of an organic solvent, 1%-5% of a stabilizer, 0.2%-4% of a burning resisting agent, 0.5%-3% of a chelating agent, 0.1%-1% of a corrosion remover and the balance water. The preparation method includes the steps that surface active agents are sequentially added to water to form the composite surface active agent A while being stirred, the organic solvent and the stabilizer are mixed evenly to form a component B, then the A is added to the continuously-stirred B, stirring is continued, then the burning resisting agent, the chelating agent and the corrosion remover are sequentially added to the A and B mixed system, and finally the water is added as the balance, so that the high-efficiency environment-friendly foam extinguishing agent is obtained. The high-efficiency environment-friendly foam extinguishing agent is free of a fluorine surface active agent, thereby being high in bioremediation performance. Foam prepared through the method is good in stability and high in fire extinguishing efficiency, and is a high-efficiency environment-friendly product. According to the preparation method, heating and filtering are not needed, the three wastes are avoided, environment protection and energy conservation are achieved, and the production efficiency is high.

The invention discloses a demoulding agent used for precast concrete components. The demoulding agent includes following raw materials, by weight, 10-30 parts of an unsaturated fatty acid, 5-20 parts of an oily density adjusting agent and an aqueous density adjusting agent, 1-5 parts of an oily emulsifier, 1-5 parts of an aqueous emulsifier, 0.1-4 parts of an emulsification additive, 0.1-2 parts of a defoaming agent, 0.1-2 parts of an anti-rust agent, 1-5 parts of a settling-resistant and thickening thixotropic agent and 40-65 parts of water. The unsaturated fatty acid is oleinic acid, palmitoleic acid or ricinoleic acid. The emulsification additive has a structure formula represented as follows, wherein R1 is H or CH3, R2 is CONH2, CH2SO3Na or COOM, the x, the y, the a and the b are linking numbers of a copolymer repetitive unit and are ranged from 1 to 10, the m and the n are addition mole average numbers and are ranged from 10-50, wherein M is a hydrogen atom, a monovalent metal ion, an amino group or an organic ammonium group. The demoulding agent is low in cost, is free of generation of oil contamination, is long in storage time, is not liable to decay, deteriorate and layer, and is free of influence on surface and internal quality of concrete.

The invention provides a preparation method for fermented milk. The preparation method comprises steps: first, liquid milk, sweetening agents and stabilizing agents are mixed, heated, homogenized, and then sterilized; second, fermenting strains are inoculated to the mixture after sterilization obtained from the first step, and the mixture is fermented into curdled milk; third, the fermentation of the curdled milk is stopped and ripening is carried out; fourth, ultrahigh pressure sterilization is carried out under the pressure of 400-800 MPa. The ultrahigh pressure production method for fermented milk with long quality guarantee period furthest avoids negative influences of second heat sterilization of fermented milk, and reduces energy consumption of industrial production. The beneficial nutritional ingredients in the fermented milk can be completely reserved through the ultrahigh pressure sterilization technology, the texture is improved, the quality guarantee period of the fermented milk is prolonged to 6 months, and the fermented milk is not easy to corrupt.

The instant meal producing, storing and transporting process includes the following steps: making and packing staple food, dishes, dish mate separately to form several sealed packages; providing container capable of holding high temperature water at 55-95 deg.c, container capable of holding low temperature water at 5-10 deg.c and container capable of holding low temperature salt water at -5 to +10 deg.c; setting the food in corresponding containers; sealing the containers to form the instant meal; storing or transporting. The instant meal producing, storing and transporting apparatus includes package for instant meal, container capable of holding high temperature water at 55-95 deg.c, container capable of holding low temperature water at 5-10 deg.c and container capable of holding low temperature salt water at -5 to +10 deg.c.

The invention provides an aramid fiber oiling agent. The aramid fiber oiling agent comprises, by weight, 92-82% of a lubricating agent, 3-10% of a bundling agent, 5-8% of a composite antistatic agent, and the balance is an annexing agent. The lubricating agent is fatty acid sebacate. The aramid fiber oiling agent has the good antistatic property in various humidity conditions, corrosion is not likely to happen, the requirements for reducing of fiber corrosion and enhancing of composite performance of fibers and rubber of aramid fibers with various standards in the spinning procuding or secondary processing process can be met, the aramid fiber quality can be effectively improved, and continuous processing quality can be effectively improved.

The invention discloses an alfalfa layering parting harvester and an alfalfa layering parting harvesting method, and belongs to the field of agricultural mechanical manufacturing. The harvester mainly comprises a self-propelled base plate, a machine frame, an upper mowing platform, an upper conveyor, a storage box, a leaf detacher, a lamina conveyor, a lower mowing platform, a modulator, a strip collector, an upper mowing platform hydraulic rod and a machine frame hydraulic rod. During operation, the harvester completes alfalfa layering parting harvesting by the following three main steps of:harvesting alfalfa top layers, performing parting harvesting of stems and leaves, and harvesting the stems. The method for harvesting the alfalfa is not influenced by the weather, the loss of flowersand the leaves in the collection and storage process can be reduced, the separation harvesting of the stems and the flowers and leaves of alfalfa is realized, and high-quality primary grass products are provided.

The invention provides microbial treatment equipment for organic wastes. The microbial treatment equipment for the organic wastes comprises a shell; an opening is formed in the upper portion of the shell; a plurality of drainage holes are formed in the bottom surface of the shell and the drainage holes all communicate with the interior of the shell; the shell is mounted on the ground by a supporting frame; a positive and negative rotation motor is fixedly mounted at one side of the supporting frame and an output shaft of the positive and negative rotation motor is fixedly connected with one side of the shell; a water filtering barrel is movably mounted in the shell by a supporting device and the opening is formed in the upper portion of the water filtering barrel; the bottom surface of thewater filtering barrel is fixedly connected with the upper end of a rotary shaft and a first through hole is formed in the bottom surface of the shell. By means of the equipment, a large amount of moisture in the organic wastes can be removed and the wastes are not prone to spoilage; it is greatly beneficial to the temporary storage, collection, transportation and treatment of the wastes and it can be avoided that the wastes produce the hazardous substances such as mycotoxins and the like; the microbial treatment is conducted after the dewatering treatment of the kitchen organic wastes, so that the kitchen organic wastes can be rapidly degraded, the microbial treatment amount of the kitchen organic wastes can be greatly improved and the energy consumption can be greatly reduced.

The invention belongs to the technical field of food processing and provides a method for quickly freezing cooked crayfish meat at low temperature. The method has the following beneficial effects: under the condition of higher low temperature, the preservation time of the cooked crayfish meat can be lengthened to at least six months, thus the quality of the crayfish meat is assured; the crayfish meat at the moment does not obviously differ from the just cooked crayfish meat in quality, has unique flavor and strong delicate flavor, meets the requirement of people for crayfish all the year round, is quickly frozen at minus 20 DEC C and is stored and circulated under the condition of cold chain at minus 18 DEG C, thus not only lowering the freezing treatment costs of enterprises but also solving the problems that the raw crayfish meat is difficult to strip off the crayfish and is easy to pollute and the whole structure and beauty of the crayfish meat are easier to damage in the processing process; meanwhile, the crayfish is not easy to pollute and the product is not easy to perish; and the method has extensive prospect and advantages in the crayfish industry and has stronger popularization and application values.

The invention discloses pickled vegetables without an artificial preservative and a preparation method of the pickled vegetables. The pickled vegetables are prepared from, by weight, 0.01-0.5 part of lactic acid bacteria, 85-95 parts of main material, 2-10 parts of auxiliary materials and 100-300 parts of fermentation liquor. According to the pickled vegetables without the artificial preservative and the preparation method of the pickled vegetables, metabolites generated by means of fermentation of lactobacillus plantarum, leuconostoc mesenteroides, lactobacillus brevis and ethanol-tolerant pediococcocci and antibacterial ingredients in the auxiliary materials synergistically inhibit growth of sundry bacteria, the production process of the pickled vegetables is optimized and controlled, and therefore the pickled vegetables which are free of artificial preservative and long in quality guarantee period are prepared; the pickled vegetables are high in content of nutritional ingredients and unique in flavor.

The invention relates to a composite substrate suitable for artificially breeding ragworms and a construction method thereof and belongs to the technical field of aquiculture. According to the life habit of the ragworms and different proportions and thicknesses, pebble, fine sand, clay and the like with different grain diameters run through a coarse pebble layer, a fine pebble layer, a coarse sand layer, a fine sand layer and a clay mud layer in sequence from bottom to top to perform composite matching; and the thickness range of the composite substrate is between 50 and 100 cm. The composite substrate has high permeability and is suitable for the living of the ragworms and difficult to decay and deteriorate. A surface layer contains mass organic matters which can provide high-quality sufficient bait for the ragworms. Through detection, the composite substrate suitable for artificially breeding the ragworms and the construction method of the embodiment of the invention are used for breeding the ragworms; the survival rate of the breeding is up to 70 to 90 percent per year; and larvas with weight between 0.5 and 1.0 g can be up to about 10 g after one-year breeding. The body color of the ragworms is maroon; the heads of the ragworms have fluorescence; and the constitution is lusty.

The invention discloses a synthetic pyrethroid type pesticide aqueous emulsion. Synthetic pyrethroid, vegetable oil, phosphate polyoxyethylene nonyl phenol, stabilizer, antifreezer, thickener, preservative agent and water are mixed, the shearing at high speed is carried out by using a high-shearing emulsion machine, and then the oil phase and the water phase are fully mixed into even milky milk-shaped even and stable aqueous emulsion. The pesticide aqueous emulsion utilizes the vegetable oil as the solvent of the technical grade of the synthetic pyrethroid, therefore, compared with the chemical organic solvent, the pesticide aqueous emulsion is more natural, is easier to be decomposed and more environmental-friendly, has low burning point, is non-toxic and safer, and is particularly suitable for the green nuisance-free vegetable production.

The invention discloses a feed for weaned piglets. The feed is composed of Zhubao rice flour, a creep feed and a piglet feed. The Zhubao rice flour and the creep feed are used for breeding a piglet both three days before weaning and three days after weaning; then the piglet feed gradually replaces the creep feed for feeding of the piglet within 7 days; and then about 30 kg of the piglet feed is used for feeding the piglet for 30 to 35 d, and the body weight of the piglet is increased to 30 kg. According to the invention, based on the characteristics of the growth of piglets in different growthstages, the feed conforming to the growth characteristics of piglets is provided on the premise of reducing the usage amount of antibiotics; the feed digestion and absorption rates of the piglets areincreased; the stress syndrome of the piglets is reduced; the diarrhoea rate of the piglets is lowed; the survival rate and growth speed of the piglets are improved; and the weight uniformity of a pig group is enhanced.

The invention discloses a calf small group heath breeding method using acidified milk. The method includes: dividing calves into two groups to breed; feeding 0-3-day-old calves with colostrums of more than 6 kg / day; performing small group breeding on 4-30-day-old calves, allowing the calves to freely eat acidified milk during this period, inducing 7-day-old calves to eat particle fodder and freely drink water with the temperature of more than 15 DEG C; performing second small group breeding on 31-60-day-old calves, restrictedly feeding the calves with acidified milk, and allowing the calves to freely eat particle fodder and freely drink water with the temperature of more than 15 DEG C; and allowing 60-day-old calves to be weaned. The breeding method can save labors by 600%, decrease the diarrhea rate of the calves by 21.00%, decrease the diarrhea frequency by 3.38%, cannot affect particle fodder ingestion, can promote development of rumen, facilitates health breeding of the calves and reduction of breeding cost of the calves, and has a guiding significance and a promotion significance on production.

The invention discloses lepista sordida and a separation and propagation method and soil covering cultivation method thereof. N006# strains are obtained by tissue separation of wild lepista sordida fruiting bodies, and the lepista sordida N006# strains are preserved in China General Microbiological Culture Collection Center (CGMCC); the preservation date is June 1st, 2016; the preservation registration number is CGMCC NO. 12507. The lepista sordida N006# strains are obtained through tissue separation, a propagation method of the strains is mastered, and strain guarantees are provided for artificial cultivation of lepista sordida. The lepista sordida fruiting bodies are obtained through artificial soil covering cultivation, germplasm resources of this specie are protected, and a novel edible fungus variety is developed.

The invention discloses an alcohol-free fountain solution and a preparation method thereof, belonging to the technical field of offset printing. In the present invention, gelatin, methylcellulose, polyethylene glycol and deionized water are stirred to obtain a colloidal solution, and then plant starch and ethylene glycol are stirred, then sulfuric acid solution, p-toluenesulfonic acid, etc. are added for heating reaction, and then hydrogenated Sodium solution adjusts the pH and distills under reduced pressure to obtain starch-based dodecyl glucoside. After stirring cetyl alcohol, 1,2-propylene glycol, etc., add starch-based dodecyl glucoside, preservatives, defoamers, etc. after stirring Mix in the colloidal solution to get a mixed solution, and finally stir disodium hydrogen phosphate, citric acid, deionized water, etc. and add them to the mixed solution to stir to obtain an alcohol-free fountain solution. The dampening ability is excellent. At the same time, the emulsification rate of the ink after the fountain solution is used is low, which does not affect the drying time of the ink. The fountain solution does not add alcohol, which can reduce the emission of volatile organic compounds and avoid the risk of alcohol being flammable and explosive.

The invention discloses an efficient and environment-friendly aqueous film-forming foam extinguishing agent and a preparation method thereof, and the extinguishing agent is composed of 0.5-5% of a fluorocarbon surfactant, 10-35% of a hydrocarbon surfactant, 0.1-1% of a foam stabilizer, 2-10% of a cosolvent, 1-5% of an anti-burning agent, 5-30% of an anti-freezing agent, 0.1-1% of a preservative and the balance of water. Te fluorocarbon surfactant is a perfluorinated branched short-chain anionic surfactant synthesized by taking an industrial cheap raw material hexafluoropropylene dipolymer as an initial raw material. The preparation method comprises the following steps: uniformly mixing the surfactant component A, the cosolvent, the foam stabilizer and the water of a compound system formed by mixing and stirring the two surfactants to form a component B, adding the component B into the continuously stirred component A, continuously stirring, and sequentially adding the anti-burning agent, the anti-freezing agent and the preservative into the mixed system of the component A and the component B. The fire extinguishing agent comprises a perfluorinated branched short-chain environment-friendly anion fluorocarbon surfactant, is low in toxicity and good in biodegradability, has excellent spreadability, burning resistance, fire extinguishing performance, stability and liquid separation performance, does not contain PFOS and is not prone to being enriched in the environment and living bodies, and therefore environmental pollution cannot be caused.

The invention discloses a making method of ready-to-eat marinated bath chap. The making method comprises the following steps of performing alkali and enzyme united hair removal on pig heads, performing trimming, performing preservation, performing marinating, performing antioxidation treatment, and finally performing packaging and bacteria-free treatment so as to obtain products. According to themaking method disclosed by the invention, alkali and enzyme united hair removal is used, so that the hair of the pig heads is thoroughly removed, and the hair removal technology is simple and safe; low-temperature preserving is used, so that the flavor of products is increased; an antioxidant and light-resistant heat-insulating materials cooperate with each other to perform anti-oxidant treatmenton the products, and finally, the bath chap is subjected to bacteria-free treatment. The marinated bath chap products made by the making method are clean, hygienic, safe to eat, delicious in taste, unique in taste and easy to digest, and the shelf life of the products reaches 1year or above.

The invention relates to a wire drawing liquid and concretely relates to a corrosion-resistant scale-inhibition magnesium-aluminum alloy wire drawing liquid. The corrosion-resistant scale-inhibition magnesium-aluminum alloy wire drawing liquid is prepared from 28-32 parts by weight of hydrogenated castor oil, 2-3 parts by weight of sodium benzotriazole, 2-3 parts by weight of algal polysaccharide, 15-18 parts by weight of trihydroxymethylpropyl trioleate, 4-6 parts by weight of butylated hydroxyanisole, 2-3 parts by weight of sodium lactate, 1-2 parts by weight of coptis root extract, 1-2 parts by weight of potassium dihydrogen phosphate, 6-8 parts by weight of polyglycol laurate, 1-2 parts by weight of rosmarinic acid, 2-3 parts by weight of vulcanized paraffin, 4-5 parts by weight of an assistant and 800-1000 parts by weight of deionized water. The base oil of the wire drawing liquid has excellent high-temperature lubricity. Algal polysaccharide can effectively delay grease oxidation and has metal ion complexation capacity so that chips on the mold are avoided. Coptis root extract and rosmarinic acid are two natural eco-friendly bioactive substances and have effects of inhibiting bacteria and resisting corrosion and oxidation. The wire drawing liquid has good wire drawing effects. The wire prepared from the wire drawing liquid has the advantages of no scratch on the surface, high cleanability, difficult sediment incrustation on the mold, difficult corruption and deterioration at a normal temperature, and long life.

The invention belongs to the fields of pet foods and especially relates to cheese and chicken liver salt roasted chicken being edible for pets and a preparation method thereof. The cheese and chicken liver salt roasted chicken has abundant components and includes a chicken layer, a cheese layer, diced chicken liver, and a vegetable layer which comprises dried diced carrots and freeze-dried spinach powder, on the surface of the product, wherein each part supplies different and abundant nutrients for pets. All of the components in the product have stable color and have cooperative effects. The product has colorful appearance, wherein cheese granules, cheese, chicken and the like components attract pets to eat better. The product can be used as a classical snack food for celebrating birthday or as training award or like for the pets. The product is small in size and is convenient to use for feeding the pets by the pet feeders. Moisture in the product is controlled to be 10-14% after the product is roasted, so that the product has low water activity and is not liable to rot and go bad, and is convenient to store for long time.

The invention relates to the field of foam fire extinguishing system design technologies, in particular to an arrangement structure and a fire extinguishing method of a large-size high-expansion foam fire extinguishing system. The arrangement structure of the large-size high-expansion foam fire extinguishing system is characterized in that protection zones under jurisdiction are divided into a plurality of subzones, and each subzone comprises a centralized control fire pump station and a fire control center; each subzone is provided with a pressure proportional tank bag-type foam fire extinguishing device and foam concentrate is stored in a storage tank; high-expansion foam generators are arranged in each protection zone; and the distance from the fire pump station to each protection area satisfies the condition that the delay time from the moment of an alarm to the moment that the foam generator starts to spray foam does not exceed 30s. Compared with the prior art, the arrangement structure and the fire extinguishing method of the large-size high-expansion foam fire extinguishing system have the beneficial effects that 1, the distance from a proportional mixer to each protection area is shortened and the time from the moment that the fire extinguishing system is started to the moment that the foam generator starts to spray foam is reduced; 2, since pressure water and the foam concentrate are separated by a diaphragm bag in the tank, the service life of the foam concentrate is prolonged; and 3, the goal that the delay time from the moment of the alarm to the moment that the foam is started to be sprayed does not exceed 30s is realized, and the international specification is met.

The invention provides a preservative composition for a cosmetic, a preparation method and application of the preservative composition, and the cosmetic, and relates to the technical field of cosmetics. According to the preservative composition, a garden burnet root extract and a cottonrose hibiscus leaf extract are combined to serve as an active ingredient in the preservative composition, and theobtained composition has a good antibacterial effect, and has good bacteria inhibition effects on common microorganisms in the cosmetic, such as candida albicans, aspergillus niger, escherichia coliand saccharomycetes. The cosmetic comprising the above preservative composition has the advantages of being less susceptible to spoilage and being lower in sensitization.

The invention discloses an oil-based metal cutting fluid and a preparation method thereof. The oil-based metal cutting fluid comprises the following ingredients in percentage by weight: 15-20% of basic oil, 3-5% of petroleum sodium sulfonate, 4-6% of zinc naphthenate, 1.5-2.5% of tall-oil fatty acid, 2-4% of emulsifier EL-20, 2-3% of castor oil, 0.2-0.4% of sodium hydroxide, 2-4% of boric acid, 4-6% of monoethanolamine, 3-5% of diethanol amine, 0.1-0.3% of benzotriazole, 0.1-0.3% of defoaming agent MS-75, 4-6% of span 80, 0.2-0.4% of solid formaldehyde, and the balance of water. By taking petroleum sodium sulfonate as an antirust agent and benzotriazole and ethanolamine as an anti-corrosion antioxidant, the oil-based metal cutting fluid has excellent wear resistance, antirust property, moldproof property, chemical stability and anti-microbial characteristic, thus having wide universality to various cutting modes and materials of workpieces.

The invention provides an environmentally-friendly synthetic grinding fluid. The environmentally-friendly synthetic grinding fluid is prepared from 2.5wt% of oleic acid, 5wt% of triethanolamine, 2wt% of sebacic acid, 4wt% of triethanolamine, 2wt% of sodium benzoate, 4.5wt% of polyether, 5wt% of polyethylene glycol, 2wt% of sodium carbonate, 1wt% of ammonium molybdate, 4wt% of glycerin, 0.2wt% of benzotriazole, 0.2wt% of an antifoaming agent, 0.6wt% of isothiazolinone, 0.03wt% of fluorescent green and 66.97wt% of deionized water. The environmentally-friendly synthetic grinding fluid can maximumly reduce a grinding temperature and a grinding force, guarantee a workpiece grinding precision and surface quality, prolong a grinding wheel service life, improve grinding processing efficiency, satisfy antirust and anticorrosion requirements on a machine tool and a workpiece, reduce a use cost, satisfy environmental protection requirements and is suitable for a metallurgy roller in a steel industry.

The invention discloses a multifunctional aluminum metal working fluid. The multifunctional aluminum metal working fluid comprises the following components in parts by weight: 10-15 parts of tall oildiethanolamide borate, 1-3 parts of a bactericide, 0.1-0.3 part of a defoamer, 10-15 parts of triethanolamine borate, 5-10 parts of self-emulsifying ester, 3-5 parts of water-based phosphate, 3-5 parts of a water-based vulcanization additive, 3-5 parts of an aluminum alloy sealing agent, 1-3 parts of a coupling agent and 3-5 parts of a water-based calcium stearate solution. Preparation steps of the multifunctional aluminum metal working fluid are simple, and multifunctional use thereof can be also achieved; the multifunctional aluminum metal working fluid can be used as aluminum stamping and drawing oil, and can be also used as an aluminum cutting fluid through addition of 15-20-fold water; a machined product is not required to be cleaned, and a direct welding operation is performed; the multifunctional aluminum metal working fluid can be also used as aluminum tapping oil; the multifunctional aluminum metal working fluid is directly used or used through addition of 3-5-fold water; themultifunctional aluminum metal working fluid is strong in lubricating performance and extreme pressure performance; and the multifunctional aluminum metal working fluid protects a cutting tool so as to prolong the service life.

The invention relates to a fully-synthetic drawing fluid for coarse drawing of copper and a use method thereof. The drawing liquid comprises the following raw materials in parts by weight: 5-25 partsof a lubricant, 1-7 parts of a regulating acid, 4-11 parts of boric acid, 4-11 parts of organic alcohol amine, 4-11 parts of ethylene glycol, 4-11 parts of an antirust agent, 1-7 parts of a diethyleneglycol monobutyl ether coupling agent, 0.1-2 parts of a hard water resistant agent, 1-6 parts of a copper corrosion inhibitor T706, 0.01-0.16 part of an organic silicon defoamer and 1-4 parts of a bactericide, with the balance being water. After the drawing liquid prepared by the method is mixed with water according to a certain proportion, the effects of emulsified oil and microemulsion can be achieved when the lubricating property is tested on a German Microtap tapping torque machine, and the field actual use is completely free from problems; in the use process of the drawing liquid, no floating oil problem exists, cleaning is easy, copper powder is easy to settle and filter, only subsequent addition is needed, replacement is not needed, no waste liquid is discharged, and environmentalpollution is reduced.

The invention discloses a crayfish larva breeding method of sherax quadricarinatus. The crayfish larva breeding method comprises the following steps of establishing a larva raising pond, and then treating the larva raising pond; casting crayfish larvae; and breeding the crayfish larvae. According to the method, through the specific larva raising pond, appropriate parameters are adjusted, and besides, larva raising feeds which are rich in nutrients, and easy to digest and absorb, and cannot pollute water bodies are added, so that the production cost is reduced, and the survival rate and the growth rate of the crayfish larvae are notably increased.

The invention provides a production method of a synthetic grinding fluid for a metallurgy roller. The production method comprises the following steps that 1, oleic acid and triethanolamine undergo a reaction in a reactor; the reaction system is stirred continuously at a rotation rate of 100r / min; the reaction system is heated to a temperature of 50-60 DEG C; and the reaction system is stirred sequentially for 30min for next use; 2, deionized water, sebacic acid and triethanolamine are orderly added into a reactor; a stirrer is started; and the mixture is stirred at a rotation rate of 100r / min for 1h; 3, sodium benzoate, polyether, polyethylene glycol, sodium carbonate, ammonium molybdate, glycerin, benzotriazole, an antifoaming agent, isothiazolinone, fluorescent green and triethanolamine oleate obtained by the step 1 are orderly added into the reactor used in the step 2; the reaction system is heated to a temperature of 50-60 DEG C; and the reaction system is sequentially stirred for 1h; and 4, the reaction product is cooled to a normal temperature to form the synthetic grinding fluid. The synthetic grinding fluid obtained by the production method has excellent lubrication, cooling, cleaning and rust resistance functions.

The invention relates to drawing liquid, and concretely relates to a low-fog environmentally-friendly water-based drawing liquid. The drawing liquid is prepared by using the following raw materials, by weight, 20-22 parts of higher fatty acid ester of neopentyl polyol, 22-25 parts of tridecyl trimellitate, 4-5 parts of peregal, 10-12 parts of diglycerol, 1-3 parts of diazolidinyl urea, 2-3 parts of polysiloxane, 1-3 parts of sodium molybdate, 4-5 parts of polyoxyethylene laurate, 8-10 parts of polyethylene glycol, 4-5 parts of an auxiliary agent and 800-1000 parts of deionized water. The drawing liquid uses a mixture comprising higher fatty acid ester of neopentyl polyol with good thermal stability and non-volatility and tridecyl trimellitate as base oil, and raw materials comprising polyethylene glycol, sodium molybdate and diazolidinyl urea are combined in the invention, so the extreme pressure anti-wear property of the drawing liquid is effectively improved, the lubrication performance of the drawing liquid is excellent, and the heat dissipation of the drawing liquid is fast; and the raw materials are low-toxicity nonvolatile components. The drawing liquid has the advantages of good lubrication property, good permeability, fast dissipation, unlikely formation of water mist in the use process, and effective improvement of the processing environment.