43results about How to "Production process economy" patented technology

The invention discloses steel for non-magnetic drilling tools and a production method thereof. The steel for non-magnetic drilling tools comprises the following chemical compositions in percentage by weight: Fe, less than or equal to 0.06% of C, 17.00-23.00% of Mn, less than or equal to 0.80% of Si, less than or equal to 0.025% of P, less than or equal to 0.015% of S, 12.00-20.00% of Cr, less than or equal to 1.0% of Mo, 0.20-1.20% of N, less than or equal to 2.30% of Ni and less than or equal to 0.025% of Al, wherein, N equivalent weight=Ni+0.6Mn+0.18Cr+9.69(C+N)-0.11SI2 is greater than or equal to 16. Compared with the prior art, the invention provides an economic and scientific production method with stable austenite so as to be subject to use requirement, production cost requirement and the like. The steel for non-magnetic drilling tools of the invention is also suitable for other applicable fields.

The invention relates to a battery electrode with movable internal particles and a preparation method thereof, and pertains to the technical field of the battery electrode. The battery electrode is characterized in that the battery electrode comprises an electrode frame which is arranged in the battery body, movable electrode particles are piled in the electrode frame, the electrode particles are negative particles or positive particles made of solid electrode material, the electrode frame has net-shaped structure and is connectively provided with an input pipeline and an output pipeline which extend out of the battery body, and the electrode frame is connectively provided with an electrode post head. The battery electrode with movable internal particles and the preparation method thereof break through the traditional model in which the battery electrode is fixed in the battery. The electrode particles of the battery electrode can be input into or output from the battery body, can be charged in the battery body and also can be moved out of the battery body to carry out charging and maintenance. The battery electrode has the advantages that the manufacturing automatization of the battery electrode can be realized; the volume and the weight of the battery are reduced; the use performance of the battery is improved; and fast charge is achieved.

The invention discloses an oxidation desulfuration method based on modified MCM-41 anchored heteropolyacid catalyst, adopting hydrogen peroxide as oxygenant and modified MCM-41 anchored heteropolyacid as catalyst. The method comprises the following steps: proportionally mixing oil with acetonitrile solvent, proportionally adding the mixture of the oxygenant and the catalyst at certain temperature and normal pressure, cooling to room temperature after reaction, naturally layering, obtaining desulphurized oil products at the upper layer of oil phase, separating the catalyst in the lower layer (namely the acetonitrile phase) through filtration, and recycling. Compared with the traditional process, the method has the advantages of low production process, high safety of operation under normal pressure, strong desulfuration capability, saving of oxygenant and low production cost, and achieves efficient, economic and environment-friendly production process.

The invention provides a reaction-type crab-flavor essence and a preparation method thereof. The preparation method comprises the following steps: taking the leftovers, such as crab legs and crab pincers and the like as raw materials; carrying out pretreatment and enzymolysis, combining other ingredients and adopting a corresponding preparation process to prepare into the crab-flavor essence. The obtained crab-taste essence has aromatic crab flavor, fresh mouthfeel and high truth degree, reduces the cost, and solves the problems of wasting and polluting the proteins of the crab leftovers.

The invention discloses an inorganic polymer coagulant for water treatment and a preparation method thereof. The inorganic macromolecule coagulant is polymerized zirconium tetrachloride, which uses zirconium tetrachloride and concentrated lye as raw materials, and slowly adds the concentrated lye to the zirconium tetrachloride solution to obtain different suitable alkalization degrees, concentrated alkali The dropwise addition process is controlled to be completed within 3 hours, and then the stirring is continued for 3-5 hours until the solution becomes a colorless and transparent liquid. The inorganic polymer coagulant provided by the invention has the advantages of good product stability, strong adsorption and bridging ability to colloidal substances, good coagulation effect, wide application range, etc., and can be widely used in water supply, wastewater treatment, papermaking, textile printing and dyeing , Daily chemicals and other fields, and has a good water treatment effect. The method of the invention has the characteristics of simple and convenient process, economy, speed and the like.

The invention relates to a forging process for a steel forging piece for a 2Cr11Mo1VNbN steam turbine blade. The forging process comprises the following steps of: during heating before forging, controlling a charging temperature to not exceed 600 DEG C, controlling a low-temperature temperature rise rate to not exceed 70 DEG C/h, preserving heat for 6-8 hours at a temperature of 650-750 DEG C, and heating to 1190 +/-10 DEG C at temperature rising speed not exceeding 100 DEG C/h, cooling to 1100 +/- 10 DEG C after preserving the heat for 4-6 hours at a temperature of 1190 +/-10 DEG C, and tapping and forging after preserving the heat for 2-4 hours; during forging, adopting a A-B-clamping-jaw transverse pulling forging mode or a pushing forging mode through a precision forging machine, clamping the tail end of an ingot after loading, and enabling a dead head end to face towards a chuck B. In order to overcome the defects that a steel structure, produced in the prior art, for the 2Cr11Mo1VNbN steam turbine blade is high in sigma-ferrite content, is extremely liable to crack during forging, and is severely affected in strength and toughness, the invention provides the forging process for the steel forging piece for the 2Cr11Mo1VNbN steam turbine blade, and the forging process solves the cracking problem of the steel forging piece for the 2Cr11Mo1VNbN steam turbine blade, meets the strength and toughness requirements, reduces machining allowance and improves production efficiency.

The invention discloses a plywood with twist resistance and high strength and a manufacturing method thereof and belongs to the field of plywoods. The plywood comprises multiple layers of single plates, wherein the textures of adjacent single plates are mutually vertical; and a binding layer is arranged between the adjacent single plates and is a formaldehyde-free hot melt film. The manufacturing flow of the plywood comprises the following steps of: selecting the single plates; drying the single plates until the water content of the single plates is less than 12 percent; sloping the single plates; combining the single plates; pre-pressing the single plates; performing hot rolling on the single plates; cooling the single plates (cold water circulation); puttying the single plates; setting the thickness and sanding the plates; sawing sides of the single plates; coating a masking agent on the single plates; performing cold pressing (0.67MPa); veneering; performing hot rolling; and sawing sides. The plywood has the beneficial effects that: the bonding strength is high and passes a bonding strength test of I type of man-made board/phenolic glue (WBP) level and I type of man-made board; the plywood does not contain formaldehyde, is highly environment-friendly and is high in bonding strength; a glue coater is not required, so the traditional glue coating process is thoroughly changed; pollution caused by cleaning the glue coater is avoided; the production process is simple; the labor is saved; and the defect of short water activity period of the traditional liquid glue is overcome.

The invention relates to a production method of high-purity magnesium sulfite. The production method comprises the following steps: introducing sulfur dioxide gas into magnesium sulfite slurry to obtain a magnesium bisulfite solution, removing solid-phase impurities in the magnesium bisulfite solution, decomposing magnesium bisulfite into sulfur dioxide and magnesium sulfite crystals in a heatingor/and pressure reducing way, and recovering the magnesium sulfite crystals, wherein sulfur dioxide gas is reused for the acidification reaction of the magnesium sulfite slurry. Considering from the perspective of flue gas desulfurization, the method has the beneficial effects that the problems of high flue gas desulfurization cost and incapability of comprehensively utilizing desulfurization products of the existing magnesium method flue gas desulfurization are solved, mineral-grade magnesium oxide is converted into industrial-grade magnesium oxide through the desulfurization process, and value-added recycling of flue gas desulfurization is realized. Considering from the perspective of industrial-grade magnesium oxide production, the method has the beneficial effect of creating a high-purity magnesium oxide production process which is low in production cost, high in product quality and less in three-waste pollution.

The invention relates to a method for manufacturing power cables. The method comprises the steps of wire drawing, softening, stranded wire pressing, cross-linking three-layer co-extrusion, copper strip three-layer wrapping, cabling, distance sleeve extrusion, sheath installation, sheath extruding and printing or installed sheath spark testing, finished product inspection and packaging. The method for manufacturing power cables has the advantages that produced power cables are ensured to be safe and reliable, and a production process is scientific and economic.

The invention discloses a production technology for producing pulullan by fermenting aureobasidium pullulans. The production technology comprises the following steps: culturing seeds; preparing a seedculture medium; preparing a potato dextrose agar culture medium, a first-grade seed culture medium, a second-grade seed culture medium and a third-grade seed culture medium respectively; carrying outactivated culture on the seeds; inoculating an aureobasidium pullulans strain slant single bacterial colony to a first-grade seed shake flask and carrying out shake flask activation; inoculating an activated seed culture solution into a new second-grade seed culture shake flask according to the volume percent concentration of 1 percent to 20 percent and carrying out amplified culture; then inoculating the seed culture solution subjected to the amplified culture into a third-grade seed shake flask according to the volume percent concentration of 1 percent to 20 percent and culturing to obtaina seed culture solution to be fermented; inoculating the seed culture solution to be fermented into a fermentation tank filled with a fermentation culture medium and carrying out fermentation cultureto obtain the pulullan. The production technology disclosed by the invention has the advantages that the source of the raw materials is wide and the production cost is reduced, and has the effects ofeconomical efficiency, high efficiency and energy saving.

The invention relates to a forging control method for uniformly refining grain sizes of forgings. Special forging control and furnace return heating modes are adopted in the forging process of large forgings, so that the surface and heart temperatures of the forgings tend to be consistent, the heart structures of the forgings are totally transformed, and the internal structures of the large forgings are uniformly refined; the before-forging high-temperature heating is adopted; after first heating number upsetting and lengthening forging, the forgings are cooled in air to reach a certain temperature; after the internal and external surface temperatures of the forgings tend to be consistent, the forgings are returned to the high-temperature furnace for heating; after second heating number upsetting and lengthening, the forgings are cooled in air to reach a certain temperature; after the internal and external surface temperatures of the forgings tend to be consistent, the forgings are returned to the low-temperature furnace for heating; the forgings are discharged from the furnace for forging after insulation in the low-temperature furnace by a period of time; and the forging controlmethod can uniformly refine the internal structures of the large forgings under the condition of not increasing the production cost, solves the difficulties of coarse crystals and mixed crystals of the large forgings, greatly reduces the production cost, shortens the production period, and is high in mechanical performance index of the forgings, long in service life and more economical and scientific in production process.

The invention relates to a green and efficient heterogeneous catalyst for compounding 2,4-di-tert-butylphenol. The catalyst is a porous solid acid resin catalyst with high specific surface area. Phenol and isobutene are taken as reaction raw materials for producing 2,4-di-tert-butylphenol under a catalytic effect of the nontoxic harmless green solid acid resin catalyst. The catalyst provided by the invention is used for replacing a carclazyte catalyst in the present production, can be repeatedly reused, has the characteristics of long service life, is capable of greatly reducing the production cost of the catalyst, is capable of greatly reducing the solid waste generated by disposable use of the carclazyte catalyst and can realize the greening of the production process. Meanwhile, the heterogeneous catalyst for compounding 2,4-di-tert-butylphenol provided by the invention is simply separated, recycled and reused, the separating time of the present carclazyte catalyst is greatly shortened and the production efficiency is obviously increased.

The invention discloses a device and a method for preparing methyl 3-methyl-2-butenoate. The self-design device comprises a reaction kettle, a reaction reflux and distillation condenser, a rectifyingkettle, a rectifying tower section and a rectifying tower top condenser, the reaction kettle is connected with the reaction reflux and distillation condenser through a pipeline; the reaction reflux and distillation condenser is connected with the rectification kettle through a pipeline; the rectifying kettle is connected with the rectifying tower section; the top of the rectifying tower section isconnected with the rectifying tower top condenser through a pipeline; the rectifying tower top condenser is connected with the reaction kettle through a pipeline. According to the method, the ionic liquid is used as a catalyst for esterification reaction of methyl 3-methyl-2-butenoate, on the base of the self-designed preparation device, the reaction process is carried out synchronously with separation of methyl 3-methyl-2-butenoate and (or) water, an ionic liquid catalyst is repeatedly used for five times, and the average yield of the reaction is 90.7%. The invention provides a safe, economic, green and environment-friendly preparation device and method for industrial scale production of methyl 3-methyl-2-butenoate.

The invention belongs to the crossing field of deep processing of petrochemical oil products and environmental protection technology, and particularly relates to a preparation method and an application of a polyamide-amine dendrimer polymer immobilized heteropoly acid catalyst. The method comprises the steps as follows: adding a polyamide-amine dendrimer polymer to deionized water, and performingheating and stirring; dissolving heteropoly acid in deionized water to prepare a solution and dropwise adding a polyamide-amine dendrimer polymer solution, controlling the temperature, and performingintense stirring and dialyzing and separating to prepare the polyamide-amine dendrimer polymer immobilized heteropoly acid catalyst. Compared with the traditional catalyst, when applied to oxidative desulfurization, the catalyst prepared with the method has the advantages that the desulfurization condition is mild, desulfurization can be performed in the hydrogen peroxide system with lower concentration (0.5%-5%), the decomposition rate of hydrogen peroxide is low, and the desulfurization effect in oil products is good.

The invention discloses a continuous preparation method of a substituted diaryl phosphate compound, which comprises the steps disclosed in the invention; the preparation method of the substituted diaryl phosphate compound in a continuous reactor provided by the invention has the characteristics of short reaction time, mild reaction conditions, high purity, few byproducts, high yield, large output and the like, the utilization rate of raw materials is very high, the technical process is more green, environment-friendly, economical and efficient, the product yield is up to 99% or above, and the product purity is up to 99.9% or above.

The invention relates to a forging control method of a large-specification stepped shaft component. A forging drawing design is optimized, and a steel ingot is subjected to scarfing and shoulder cutting treatment before forging, so that a riser material is prevented from extending to a steel ingot body during forging production; special before-forging air-cooling temperature control heating is made, so that temperature stress and structural stress of the low-carbon steel ingot are overcome, the surface crack problem of a forge piece is avoided, the rejection rate is reduced, and the machiningallowance is reduced; a special tool is utilized to carry out notch design, firstly, triangular iron is used for nicking, and then a special narrow block is used for notch deformation, so that the material stripping problem at a step is reduced, and the problem that process materials are added due to wide anvil deformation of the notch is solved; and during forming deformation, narrow anvil forging is adopted, a square-octagon-hexadecagon-circle forging deformation mode is utilized in the small step deformation process, and the feeding amount of each time is controlled to be 0.6-0.85 time of the height of a blank before pressing, so that the eccentric problem is avoided, the machining allowance is reduced, the material utilization rate is improved, the production cost is reduced, and the product quality is stable.