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204results about How to "Reduce hardening" patented technology

Hot-rolled wire rod for 1,960MPa-level cable rope galvanized steel wire and production method

ActiveCN105671443AGuaranteed torsional performanceHigh tensile strengthWire rodUltimate tensile strength
The invention discloses a hot-rolled wire rod for a 1,960MPa-level cable rope galvanized steel wire and a production method. The hot-rolled wire rod is prepared from, by weight percent, 0.85%-0.91% of C, 0.20%-1.00% of Si, 0.60%-0.90% of Mn, 0.25%-0.35% of Cr, 0.015%-0.040% of Al, not larger than 0.025% of P, not larger than 0.025% of S, 0.02%-0.07% of V, not larger than 0.20% of Cu, not larger than 0.0030% of Ca and the balance Fe and inevitable impurity elements. Reasonable component contents are adopted in the wire rod, the wire rod has the beneficial effects of being high in tensile strength and plasticity, the situation of hardening during machining in the drawing process can be effectively reduced, and the torsional property of the steel wire obtained through drawing is effectively guaranteed. In the wire rod obtained through the method, the sorbite structure proportion reaches 90% to 93%, the tensile strength of the wire rod is larger than or equal to 1,320 MPa, and the area reduction rate is larger than or equal to 40%. After the wire rod obtained through the method is subjected to drawing, galvanizing and stabilizing treatment, the tensile strength of the steel wire is larger than or equal to 1,960 MPa, the torsion index is larger than or equal to 14 times, and the wire rod can be used for producing the 1,960MPa-level bridge cable rope galvanized steel wire and is suitable for ultra-large-span bridges with the ultrahigh requirement for strength.
Owner:XINGTAI IRON & STEEL

Soil improvement agent and processing method thereof

The invention relates to a soil improvement agent and a processing method thereof. The soil improvement agent comprises the following raw materials in parts by weight: 60-95 parts of desulfurized waste, 0.5-2.0 parts of inorganic accelerator, and 0.5-30 parts of organic accelerator. The soil improvement agent provided by the invention has the beneficial effects that calcium ions in the desulfurized waste are used to replace exchangeable sodium on the soil colloid, thus reducing the alkalization degree of the soil; at the same time, the excellent pore structure and physical property of the organic accelerator are used to improve the physical property of the soil and the granular structure of the soil, reduce the pH value of the soil, and improve the soil fertility; the inorganic accelerator can also improve the granular structure of the soil; in addition, with auxiliary inorganic fertilizer and organic fertilizer, the soil fertility of the soil can be further improved so as to provide nutrient contents for plant growth. To sum up, by adopting the scheme in the invention, unbalance of nutritive elements in the soil can be effectively overcome, the land capability is improved, the soil is loosened, and the fertilizer efficiency is increased, so that the soil salinization phenomenon is fundamentally harnessed step by step.
Owner:TSINGHUA UNIV

Conditioner for severely alkaline soil and processing method of conditioner

The invention relates to a conditioner for severely alkaline soil and a processing method of the conditioner. The conditioner for the severely alkaline soil comprises the following raw materials in parts by weight: 88-92 parts of desulfuration waste, 1-3 parts of inorganic accelerator and 5-11 parts of organic accelerator. According to the conditioner for the severely alkaline soil, calcium ions in the desulfuration waste are used for replacing exchangeable sodium on a soil colloid, so that the alkalisation degree of the soil is reduced; an excellent pore structure and physical properties of the organic accelerator are used for improving physical characteristics and a granular structure of the soil; the pH value of the soil is decreased; the soil fertility is increased; the inorganic accelerator also can improve the granular structure of the soil; an inorganic fertilizer and an organic fertilizer are additionally adopted to further increase the soil fertility; and nutritional ingredients are provided for crop growth. In a word, the conditioner can effectively overcome nutritional element unbalance in the soil, increase the soil fertility, loosen the soil, improve the fertilizer efficiency and fundamentality control soil salinization gradually.
Owner:华清农业开发有限公司

Application of moderate alkaline soil modifier

The invention relates to an application of a moderate alkaline soil modifier to soil improvement. The moderate alkaline soil modifier comprises, by weight, 80 to 90 parts of desulfation wastes, 3 to 5 parts of inorganic accelerators and 8 to 15 parts of organic accelerators. According to the moderate alkaline soil modifier, calcium ions in the desulfation wastes are utilized to replace exchangeable sodium on soil colloid, so that the alkalinity of the soil is reduced; simultaneously excellent pore structures and physical properties of the organic accelerators are utilized, so that the physical properties and the granular structure of the soil can be improved, the potential of hydrogen (pH) value of the soil can be reduced, and the soil fertility is increased; the granular structure of the soil can be improved as well by the aid of the inorganic accelerators; and the soil fertility can be further improved by the aid of inorganic fertilizers and organic fertilizers, and nutritional ingredients can be provided for crop growth. In a word, the moderate alkaline soil modifier has the advantages that the unbalanced nutrition elements in the soil can be effectively avoided, the soil fertility can be improved, the soil can be loosened, the fertilizer efficiency is increased, and the soil salinization and alkalization can be gradually and radically treated.
Owner:华清农业开发有限公司

Method for aseptically producing miniature seed stems of common bletilla pseudobulb seeds

InactiveCN102907323AEasy plantingOvercome the shortcomings of low survival rate of transplanting and low reproduction efficiencyPlant tissue cultureHorticulture methodsSeeds sourceEmbryo
The invention relates to a method for aseptically producing miniature seed stems of common bletilla pseudobulb seeds. The method comprises the following steps of disinfecting the common bletilla pseudobulb seeds; germinating the seeds on a germination culture medium; inducing the seeds to root; and inducing artificial seed stems to form, grow and mature and the like. According to the method, technical routes and key technologies from the step of germinating the common bletilla pseudobulb seeds to the step of forming the mature seed stems are optimized and proposed, and a technology of culturing common bletilla pseudobulb tissues can be simplified, so that the common bletilla pseudobulb seeds are directly are bred in a large scale, and the common bletilla pseudobulb seed stems are produced. The germination rate of embryo seeds reaches more than 95 percent, and more than 80 percent of tissue culture seedlings can form mature miniature seed stems. According to the method, the difficulty that the common bletilla pseudobulb seeds rarely germinate under natural conditions is overcome, and the defects that the survival rate of transplantation of the seedlings in the conventional common bletilla pseudobulb tissue culture and seed aseptical breeding is low and the like are overcome. A feasible practical technology is provided for quickly producing a great amount of seed stems in factories by means of the common bletilla pseudobulb seeds, the current situation of the shortage of the seed sources of common bletilla pseudobulb can be alleviated, and large-scale artificial cultivation of the common bletilla pseudobulb is promoted.
Owner:建始县颐泰生物科技有限公司

Annealing method for high-speed steel cold-drawing wire products

The invention discloses annealing method for high speed tool steel cold drawn steel wire finished products, solving the problems of low annealing efficiency, large energy consumption, etc. The mass percentage compositions of a high speed tool steel cold drawn steel wire rod are: 0.80 to 0.90 percent by mass of C, less than or equal to 0.40 percent by mass of Mn, less than or equal to 0.40 percent by mass of Si, 3.80 to 4.40 percent by mass of Cr, 1.75 to 2.20 percent by mass of V, 5.50 to 6.75 percent by mass of W, 4.50 to 5.50 percent by mass of Mo, less than or equal to 0.030 percent by mass of P, less than or equal to 0.030 percent by mass of S, and the balance Fe. The method comprises the following steps of: 1) annealing of finished product, in which the rod is placed into a strong-convection annealing furnace, a heating mantle is cover on the furnace, and then nitrogen purging is carried out to replace the air in the furnace with nitrogen which is used for atmosphere protection during the annealing process; 2) heating the product with the furnace to a temperature of between 710 and 750 DEG C and keeping the temperature for 4 to 8 hours, covering the heating mantle, and then cooling down the furnace to a temperature below 650 DEG C, at a cooling speed less than or equal to 30 DEG C per hour, and removing the heating mantle; 4) covering a cooling mantle to cool down the product to a temperature below 140 DEGC at a cooling speed more than 100 DEG C per hour. The invention is high in annealing efficiency, thereby greatly reducing the energy consumption.
Owner:BAOSTEEL SPECIAL STEEL CO LTD

Special clinical nutritional formula for nephropathy and preparation method thereof

The invention relates to a special clinical nutritional formula for a patient suffered from nephropathy. The special clinical nutritional formula comprises the following components: 8 to 15 parts of protein, 8 to 12 parts of fat, 55 to 65 parts of carbohydrate, 3 to 5 parts of dietary fiber, 0.5 to 1.5 parts of macroelement, 0.01 to 0.04 part of microelement, 0.005 to 0.015 part of fat-soluble vitamin, 0.01 to 0.2 part of water-soluble vitamin, 0.05 to 1 part of dietary essence, 0.05 to 2 parts of medicine-and-food-homologous ingredient, 0.1 to 3 parts of natural plant compound and 0.005 to 2 parts of new-source food, wherein the medicine-and-food-homologous ingredient is selected from at least one of semen sojae preparatum, poria cocos, fructus rubi, fructus lycii, rhizoma polygonati, radix platycodonis, semen euryales, rhizoma dioscoreae and concha ostreae; the components are all previously prepared to be powder, wherein the fat and the vitamins are prepared to be the powder by adopting a micro-capsule embedment technique. Through screening and proportioning the components, the nutritional formula provided by the invention is used for providing more reasonable and complete nutritional support for the patient suffered from the nephropathy, so as to ameliorate the physical state of the patient suffered from the nephropathy; meanwhile, the components for nourishing liver and kidney, boosting essence, nourishing the blood and enhancing immunity are added; the progress of a disease is delayed; the living quality is improved and the life is prolonged.
Owner:SHANGHAI FUDAN AOYI MEDICAL TECH

Production method of linearly cut molybdenum wire

The invention provides a production method of a linearly cut molybdenum wire. Certain solid solution metal elements are added into molybdenum so as to realize a solid solution strengthening effect. The strength of the molybdenum wire can be properly improved, and the machining performance of the molybdenum wire can be improved. Certain rare earth oxides are added into the molybdenum so as to realize refined grain strengthening and dispersion strengthening effects, crystalline grains can be refined, fiber texture can be strengthened, and the strength, high temperature resistance and wear resistance of the molybdenum wire can be improved. By adopting an intermediate annealing technology, the plasticity can be restored, the internal stress is reduced, the machining difficulty is reduced, and the production and expansion of cracks are reduced or eliminated. By adopting a hot wire drawing machining technology, the plasticity of the material can be kept, and the hardening of the material during the machining of a semi-finished product is reduced. By adopting a finished product multi-mode cold wire drawing technology, work-hardening and strength enhancement effects can be realized. The tensile strength of the linearly cut molybdenum wire made by the production method generally can reach 1900-2300mpa and can meet the requirements of linear cutting users.
Owner:佛山朕华照明材料有限公司

Building block forming rotation platform type press

A building block forming rotation platform type press comprises a rack, a first filler mechanism, a second filler mechanism, a pressing mechanism, a block pushing mechanism, a rotation platform, a center shaft, a hollow shaft and a drive motor. The center shaft is arranged on the rack. The drive motor is arranged on the rack and located beside the center shaft. The center shaft is sleeved with the hollow shaft, and the hollow shaft is driven by the drive motor to rotate around the center shaft through gear engagement. The rotation platform is fixedly installed on the hollow shaft and can rotate along with the hollow shaft. The first filler mechanism, the second filler mechanism, the pressing mechanism and the block pushing mechanism are arranged on the rack and can be distributed around the center shaft in an equal-angle manner. The building block forming rotation platform type press is simple and compact in structure and low in manufacturing cost, and the requirement for raw materials is low; building blocks obtained through pressing are high in strength and suitable for being stacked, and therefore the usage number of trays can be reduced, and the transporting cost is reduced; and meanwhile the hardening phenomenon after building block forming is avoided.
Owner:厦门市南昇机械设备有限公司

T-type high pier cast-in-place bent cap formwork structure and construction method

The invention discloses a T-type high pier cast-in-place bent cap formwork structure. The T-type high pier cast-in-place bent cap formwork structure comprises a cushion cap, a steel plate frame latticed panel is arranged at the top of the cushion cap, prefabricated reinforced concrete base plates are fixedly connected to the two ends, a groined support is arranged on the upper portion of the steel plate frame latticed panel, a shaped steel formwork is arranged on the upper portion of the groined support, and support vertical rods are connected to the two ends of the groined support; a shaped steel frame is arranged between the top of the groined support and the tops of the support vertical rods and is fixedly connected with the groined support and the support vertical rods, and joist steel is arranged between the shaped steel frame and the shaped steel formwork; upside down bowl-type brackets are arranged on the upper portion of the prefabricated reinforced concrete base plates. The T-type high pier cast-in-place bent cap formwork structure has the advantages that the existing cushion cap and prefabricated reinforced concrete plate concrete are used as bearing bases, the work of earthwork flattening and foundation hardening is reduced, foundation processing mechanical cost, concrete material cost and labor cost are saved, and the engineering period is shortened.
Owner:HANGZHOU JIANGRUN TECH LIMITED

Mixed fertilizer for improving light and moderate saline-alkali soil and preparation method of mixed fertilizer

The invention provides a mixed fertilizer for improving light and moderate saline-alkali soil. The mixed fertilizer comprises the following ingredients in parts by weight: 5-15 parts of humic acid fertilizer, 20-35 parts of water soluble nitrogen fertilizer, 18-25 parts of water soluble phosphate fertilizer, 20-28 parts of water soluble potassium fertilizer, 0.1-0.5 parts of microelement fertilizer, 40-60 parts of semi-coking biomass, 5-10 parts of sodium polyacrylate and 20-26 parts of desulfurized gypsum, wherein the semi-coking biomass is a product of carbonizing treatment of straws at 320-360 DEG C for 1.5-2h; and a pH (potential of hydrogen) value of the mixed fertilizer is 6.5-7. The mixed fertilizer is used for treating the light and moderate saline-alkali soil; physical and chemical properties of the soil are improved obviously; the fertilizer is acidic and can neutralize alkaline of the saline-alkali soil; the pH value of the soil is reduced by 1-2; an alkalization degree of the soil is reduced to below 7% after improvement from 10-20% before the improvement; the hardness of the soil is obviously reduced; the penetrability is obviously improved; and a salt content of the soil is decreased year after year.
Owner:GUIZHOU UNIV
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