193results about How to "Guaranteed production cost" patented technology

The invention discloses a metal-based powder metallurgy brake lining material and preparation methods thereof. The invention aims to solve the problems that the strength of a material is reduced along with the adding of ceramic particles when the powder metallurgy brake lining material is produced by the prior art and the like. The material comprises the following components in percentage by weight: 10 to 80 percent of Cu-Sn mechanical alloy powder, 1.25 to 15 percent of Ti-C mechanical activated powder, 2 to 65 percent of Fe powder, 0 to 10 percent of Ni powder, 0 to 12 percent of Cr powder, 2 to 8 percent of Al2O3 powder, and 7.75 to 23 percent of graphite, wherein the Cu-Sn mechanical alloy powder is prepared from Sn powder and Cu powder which contains 6 to 10 percent of Sn powder by mechanical alloying beforehand; and the Ti-C mechanical activated powder is prepared from Ti powder and C powder according to the ratio of 2:1-8:1 through mechanical activation beforehand, and forms TiC during the sintering. The invention also provides two preparation methods which combine the mechanical activation and the mechanical alloying with the prior powder metallurgy or discharge plasma sintering method.

The invention belongs to the technical field of constructional steel for ships and ocean engineering and in particular relates to steel plates for a 355MPa-level easy-to-weld ocean platform and a production process of the steel plates. Two steel plates of which the thickness specifications are [6-40]mm and [40-60]mm are comprised, wherein the steel plate with the thickness specification of [6-40]mm comprises the following chemical components in percentage by mass: 0.10-0.15 percent of C, 0.20-0.50 percent of Si, 1.20-1.50 percent of Mn, not more than 0.015 percent of P, not more than 0.005 percent of S, 0.020-0.050 percent of Nb, 0.010-0.050 percent of V, 0.008-0.020 percent of Ti, 0.015-0.055 percent of Als, not more than 0.43 percent of Ceq, not more than 0.23 percent of Pcm and the balance of Fe and inevitable impurities; and the steel plate with the thickness specification of [40-60]mm comprises the following chemical components in percentage by mass: 0.10-0.15 percent of C, 0.20-0.50 percent of Si, 1.30-1.60 percent of Mn, not more than 0.015 percent of P, not more than 0.005 percent of S, 0.030-0.060 percent of Nb, 0.020-0.060 percent of V, 0.008-0.020 percent of Ti, 0.015-0.055 percent of Als, not more than 0.12 percent of Nb+V+Ti, not more than 0.43 percent of Ceq, not more than 0.23 percent of Pcm and the balance of Fe and inevitable impurities. According to the production method, the steel plates for the easy-to-weld ocean platform are produced by adopting low Ceq, low Pcm, Nb as well as V and Ti microalloy components and a normalizing heat treatment process and are lower in production cost, even in mechanical property and favorable in welding property.

The invention discloses a method for drying rosebuds and belongs to the technical field of rosebud drying through microwave vacuum and heated air circulation. A comprehensive method for drying rosebuds through microwave vacuum and heated air circulation comprises the following steps: (1) feeding the rosebuds to a heated air circulation dryer for drying; (2) feeding the rosebuds obtained in the step (1) to a microwave vacuum drier for drying. According to the comprehensive method, the temperatures are low during the drying processes, the drying time is short, the product quality is high, meanwhile energy consumption is lowered, and the production efficiency is improved. Besides, microwaves can effectively sterilize the rosebuds and kill worms' eggs attached to the rosebuds, and are beneficial for prolonging product shelf lives.

The invention discloses a high-performance reactor with a quantitative feeding mechanism, comprising a body. The top end of the left outer wall of the body is provided with a particles feeding port, the upper left and right of the body are provided with a particles feeding device and a powder feeding device respectively, the particles feeding device comprises a particles storage bucket, a stirring device mounted in the particles storage bucket, a particles discharge tank and an intelligent meter. The high-performance reactor with a quantitative feeding mechanism can automatically finish a feeding process and enables raw materials to be automatically and intelligently rationed and weighed, production efficiency is effectively improved, production cost is reduced, material in the body is stirred by using three stirring mechanisms arranged from top to bottom, stirring efficiency is greatly improved, and stirring effect is guaranteed; a collection pit and a screen arranged at the bottom of the body can separate the material and impurities, the quality of the material is guaranteed, and in addition, a heat transfer coefficient of a reactor stirrer can be promoted.

The invention discloses a three-dimensional foaming printing method which comprises the steps of producing films according to electronic data files; coating the films with light sensitive liquids; selecting suitable gauze and subjecting the films to printing down; printing bottoming gold oil on silk screens; printing color ink on the silk screens to obtain picture bases with a stereoscopic sense; fully drying the bottoming gold oil and the color ink to obtain pattern materials; and subjecting the pattern materials to three-dimensional foaming with a foaming machine. The pattern materials obtained finally through the method have the advantages that patterns have a stereoscopic sense and good softness, the definition and the accuracy are high, and defects that screen printing techniques in the prior art are only applied to print plane products are overcome.

The invention relates electric furnace converting steel-making process technology that contains 80-90% molten iron, waste steel, pig iron and other cold burden 10-20%. The temperature of the molten iron in electric furnace is controlled to the range of 1550-1580 degree centigrade. The invention supplies a method of using molten iron to take the place of waste steel. Thus, it has great economic benefits, reduces the smoke and improves the operation environment.

The invention relates to an electric furnace burden process with high efficiency and low cost. Main raw materials are molten iron accounting for 30-60 percent of metal adding amount, excellent scrap steel accounting for 5-10 percent of metal adding amount and low-lost scrap steel accounting for 30-35 percent of metal adding amount; auxiliary materials are lime and soft burning dolomite, wherein 3.0-3.5 percent of lime and 1.0-1.5 percent of soft burning dolomite are respectively added in each ton of molten steel; and through optimizing electric furnace slag discharge operation, using an oxygenlance and adopting power supply oxygen blowing control and other smelting processes, the electric furnace burden process greatly improves simultaneous hit rate of terminal point components and the temperature of an electric arc furnace, realizes the aims of improving the quality of the molten steel, shortening the smelting period and reducing the consumption and significantly reduces the full oxygen content of steel products at the same time. The electric furnace burden process has good application prospect for ensuring the quality of steel and reducing the production cost.

The invention relates to a plate transporter and solves the problems that the prior production line is large in length, large in floor area, high in production cost, complex in maintenance process, and inconvenient to use and operate. The plate transporter is technically characterized by comprising a transporting frame for picking and placing plates, a transition frame with a slide rail, a bench, and a driving mechanism for driving the transporting frame to transport plates between the transition frame and the bench. The driving mechanism comprises first gears, second gears, third gears, reciprocating cylinders, racks, second links, and first links, wherein the first gears, the second gears and the third gears are meshed in sequence, the racks driven by the reciprocating cylinders are meshed with the first gears, the second links fixed to the first gears are hinged to the transporting frame, and the first links fixed to the third gears are hinged to the transporting frame. The plate transporter further comprises a pusher and third links, wherein the pusher moves along the slide rail and the third links hinged to the first links, the second links or the transporting frame are hinged to the pusher. The plate transporter is simple in structure, easy to maintain, low in production cost and stable and safe in transporting process.

The invention provides a composite conducting material and a preparation method thereof. The composite conducting material comprises modified attapulgite powder and nanometer carbon powder. The nanometer carbon powder is absorbed to the surface of the modified attapulgite powder. After ion exchange reaction of the modified attapulgite powder with an organic compound through the attapulgite powder, a nonionic surfactant is further absorbed to the surface of the modified attapulgite powder. The nanometer carbon powder is 10-20% of the modified attapulgite powder by percentage by weight. The envelope-bulk to weight ratio of the total use level of the organic compound and the nonionic surfactant and the attapulgite powder is 5-10mL/100g. The volume ratio of the organic compound and the nonionic surfactant is 1:1-1:2. The composite conducting material provided by the invention adequately utilizes the modified attapulgite powder to absorb the nanometer carbon powder, so that the dispersibility of the material is improved, the conducting performance of the material is ensured, and the production cost is saved.

The invention discloses a paddy rice female sterility gene and an application thereof in hybridized paddy rice seed production. The 8th site nucleotide residue of the second exon of the paddy rice Os03g0215200 gene is mutated from T to C, such that a paddy rice mutant of female completely sterile phenotype with cernuous leaves is obtained, and is named sfs1. The female sterility is caused by that the exostome is blocked by outer integument abnormal proliferation of cells, and that fertilization can not be achieved. The paddy rice mutant is utilized as a male parent, and is hybridized with an existing restoring line. Rotational crossing and high-generation homozygous are carried out, such that a novel female completely sterile restoring line is obtained by screening. Mixed-sowing seed production is carried out based on the restoring line and a male sterile line female parent, such that seed production and seed reproduction yields can be improved, seed production cost can be reduced, purity of the hybridized seeds can be ensured, and mechanized production and light cultivation of the hybridized paddy rice seeds can be completely realized.

The invention discloses a blasting processing method for an underground hanging arch. After the hanging arch is generated, the position of the maximum distance away from the center of an access extraction roadway is determined, and the position, corresponding to the position, of a deep hole in the first row behind the hanging arch is a detonation point position; and the detonation point serves asa middle point, 3-4 middle-depth holes on each side are selected, a double-detonation-bomb charging mode with the same section is adopted, a hole bottom detonation bomb loading mode is adopted for theother remaining middle-deep holes in the same row, and the hanging arch is subjected to collapse treatment through the micro-differential explosion between the same row of holes. By the adoption of the method, normal blasting recovery of the middle-deep holes in the rear row is achieved, the middle-deep holes in the front row are not damaged, the equipment production cost is reduced, the influence of the hole repairing process of the rock drilling equipment and the influence of the hanging arch on the production arrangement is reduced, and the like, the normal recovery of a stope is guaranteed, and the safety of production and operation personnel is guaranteed.

The invention discloses a vanadium-titanium nodular cast iron smelting method which comprises the steps of weighing furnace burden, smelting, spheroidizing and inoculating, wherein the smelting step comprises the sub-steps: adding oxide scale of which the addition amount is 0.5-1.5 percent of the weight of the furnace burden, and adding the oxide scale at the bottom of the furnace burden during smelting and charging; in the smelting step, after the furnace burden is molten down, adding silicon iron into molten iron for regulating the components, so as to achieve the deoxidation effect. The method has the beneficial effects that the low-price oxide scale is added into the bottom of the furnace burden during charging, and the element Ti is oxidized preferentially, so that the titanium content is reduced, the inverse spheroidizing effect of titanium is weakened, nodularizing in vanadium-titanium ductile iron is guaranteed, and a good dephosphorization effect is achieved when the oxide scale is added during smelting; the oxide scale is wide in source and low in price, the oxide scale is reasonably utilized, the production cost can be reduced, and the environment-friendly energy-saving effects are achieved. According to the method, the process is simple, the operation is convenient and the cost is low, and the comprehensive performance of the vanadium-titanium nodular cast iron is guaranteed.

The invention discloses a running operation method of a steam power system. The method comprises the following steps: acquiring performance characteristic parameters of each device in the steam power system and technological parameters of the steam power system; according to an energy and mass conservation equation of the steam power system, establishing a mixed integral linear programming model of the steam power system, and setting an optimized target function for the mixed integral linear programming model; regarding a production cost and an exhaust emission cost as targets, adopting an epsilon augmented constraint method to solve the optimized target function to obtain target optimized parameters; using the target optimized parameters as operating parameters of the steam power system to carry out operation control on the steam power system. According to the running operation method disclosed by the invention, the production cost and the exhaust emission cost are regarded as targets, the optimized target function is solved by the epsilon augmented constraint method, and an optimizing strategies meeting the two targets of the production cost and the emission cost can be obtained, so that the production cost of an enterprise can be ensured, meanwhile the method is suitable for the energy-saving environment-protecting requirement tendency, and can be used for scientifically adjusting the production and operation strategy.

The invention relates to hydrogen storage alloy for a nickel-metal hydride battery and a manufacturing method of the hydrogen storage alloy. The chemical formula of the hydrogen storage alloy is La1-x-yCexReyNi4.83-a-b-cCoaMnbAlcMd, x, y, a, b and c in the formula are atomic ratios, and the ranges of x, y, a, b and c satisfy the conditions that x=(0.175, 0.20, 0.30 and 0.35), y=(0.015, 0.02, 0.03 and 0.05), a=(0.15, 0.18, 0.20 and 0.25), b=(0.36, 0.42, 0.54 and 0.85), c=(0.15, 0.18 and 0.21), d=(0.25, 0.45 and 0.56), 0.19<=x+y<=0.4, and 0.9<=a+b+c+d<=1.4, wherein Re is one of Y, Zr and Gd, and M is at least one of Fe, Cr and Si. In the manufacturing process, gas and impurities in the alloy are removed in a film forming manner, raw materials are fully alloyed, annealing treatment is used as assistance, the composition segregation of the alloy can be remarkably reduced, and lattice imperfection and lattice stress are eliminated. The hydrogen storage alloy manufactured through the method has the beneficial effects of being high in discharge capacity and anti-pulverization capacity, low in production cost and the like, and the requirements of the Ni-MH battery for production cost and the performance can be met.

The invention discloses a method capable of avoiding buckling of forge pieces in the length direction and reducing residual stress of high-slenderness-ratio arc-shaped fillet opened aluminum alloy forge pieces. A cold compressing die is adopted for implementing the method and the method comprises the steps that A, the forge pieces are subjected to cold compression within four hours after solid solution heat treatment; B, the forge pieces are put into the cold compressing die; C, a steel plate is longitudinally arranged in the position, corresponding to a fillet, of the non-fillet face, and then cold compression deformation is conducted; D, a new steel plate is placed on each of the two sides of the part subjected to cold compression, the overlap amount of the steel plate and the indentation of former cold compression is 30%-50%, and then cold compression deformation is conducted again; E, the step D is repeated until cold compression deformation of all zones of the non-fillet face is completed; F, finally, the middle of the non-fillet face is subjected to cold compression again; and G, overall cold compression is conducted again after segmented cold compression is completed and the overall cold compression is controlled by tonnage. By adopting the method, the uniformity of the appearance of the forge pieces can be ensured and the evenness of the cold compression deformation amount of the forge pieces is improved.

The invention provides a vehicle trapping extricating system and a vehicle. The vehicle trapping extricating system comprises a pressure outputting device, valves, and first control devices, wherein the pressure outputting device is connected with a vehicle brake pedal and is used for outputting pressure according to a brake of each braking-direction wheel of the brake pedal to enable the brake to work; the pressure outputting device is connected with the brake of each wheel of the vehicle by a braking pipeline; the valves are arranged on the braking pipelines; the first control devices are used for controlling the valves to be in a switching on or off state, and when at least one wheel is trapped, the first control devices control the valve on the braking pipeline corresponding to the trapped wheel to be switched on, and when the pedal is started, the trapped wheel obtains power; and the other first control devices are used for controlling the valves on the braking pipelines corresponding to the other wheels, except for the trapped wheel, to be switched off, the corresponding braking pipelines are cut off by the valves, and when the pedal is started, the other wheels, except for the trapped wheel, have no power. The vehicle trapping extricating system provided by the invention is good in trapping extricating effect and low in production cost.