116results about How to "Optimum Process Parameters" patented technology

The invention provides a high-accuracy hole forming device for an aircraft wall panel and a method of the high-accuracy hole forming device. A main shaft module is used for feeding an electric main shaft along a hole forming axis; a feeding module is used for guaranteeing movement of the main shaft module and a pressure pin normal leveling module in the hole forming axis and providing pressure for a pressure pin to be abutted against the wall panel; the pressure pin normal leveling module is used for guaranteeing the stability of the wall panel in the hole forming process; the feeding module is matched with a grating scale module for work to realize accurate control over the hole forming feeding displacement; a visual alignment module and a control system form a closed loop feedback loop; positional deviation error of a projection point of a hole forming main shaft on the wall panel surface and an actual hole forming point can be measured and fed back in real time; and correction is performed through the closed loop system to guarantee that the positional accuracy of a formed hole is within a tolerance requirement range. According to the high-accuracy hole forming device, the positional accuracy, the surface roughness and the dimensional accuracy of the hole can meet the design requirements well; and meanwhile, slanting holes and oblique holes are not formed in the hole forming process, the temperature of a hole forming region is kept at a normal working temperature and the chip removal is normal.

The invention discloses an optimal control system for a steel rolling heating furnace, relating to the technical field of steel rolling of a heating furnace. Firstly, an on-line furnace temperature setting device is established according to different billet types, production rhythm, billet initial temperature and billet tapping temperature; the billet tapping temperature is controlled by controlling the temperature of the furnace; based on heat efficiency models under various working conditions, the loading variation of the heating furnace is calculated and taken as a feedforward value of the furnace temperature, and the high-accuracy control on the temperature of the heating furnace under loading fluctuation is realized; and on the basis, an optimal air-fuel ratio is found by establishment of an air-fuel ratio optimal control model, so that the heating furnace achieves an optimal burning condition and the aims of saving fuel and lowering steel loss are achieved.

The invention relates to a hazard-free treatment and utilization method for an aluminium electrolysis waste slot liner. The hazard-free treatment and utilization method is characterized by comprising the steps of (1) performing sorting and separating on the aluminium electrolysis waste slot liner based on an aluminium electrolysis waste negative electrode carbon material and a waste fireproof material; (2) performing smashing separately; (3) performing powder grinding separately; (4) measuring content values of cyanogen and fluorine;(5) adding a solid cyanogen removal agent and a solid fluorine removal agent, and performing material mixing; (6) performing a cyanogen removal and fluorine removal and neutral reaction on the waste fireproof material; (7) performing a cyanogen removal and fluorine removal reaction on the waste negative electrode carbon material; (8) pressing and filtering material slurry obtained in the step (6), recycling the filtering liquid, and taking filtering slag for road pavement; and (9) pressing and filtering material slurry obtained in the step (7), recycling the filtering liquid, and taking filtering slag as carbon brick for manufacturing a blast furnace. By adoption of the hazard-free treatment and utilization method, different kinds of waste materials in the waste slot liner are processed, respective optimal technological parameters specific to different kinds of waste materials are selected, and the hazard-free slag can be sorted and reasonably recycled.

The invention discloses a nanometer material contained ladle bottom argon blowing permeable brick and a preparation process thereof. The permeable brick comprises components of high-purity corundum, spinel, alpha-Al2O3 micro powders, nano calcium carbonate, Si powders, binding agents and antiknock agents. The preparation process of the nanometer material contained ladle bottom argon blowing permeable brick includes the following steps of dosing, fine powder premixing, stirring, vibration forming, curing with molds, demolding, drying and baking. According to the nanometer material contained ladle bottom argon blowing permeable brick and the preparation process thereof, Cr2O3 is not used, and during usage, new pollutants are not generated, so that pollution treatment costs are reduced, and high environmental benefits are achieved; micropores are evenly distributed in the brick, so that cracks are effectively prevented from continuing spreading during usage, the toughness of the permeable brick is improved, the spalling is reduced, the service life of the permeable brick is prolonged, the permeable brick is basically free from bonding slag after usage, cleaning during usage is reduced, and production costs of iron and steel enterprises are reduced.

The invention provides an industrialized production method for convenient soup of edible fungi. The method comprises the processes of pretreatment, blanching and cooling, proportioning, quick freezing, and vacuum freezing and drying. The optimal industrialized production method for a freeze-dried fungi soup product is determined by controlling process parameters and process flows; the technical problems of non-uniform fungi slice suspension and difficult control of freeze-drying moisture of the edible fungi product are solved; a new industrialized production method is provided for the field of edible fungi processing; and the economic benefit of the culture industry of the edible fungi is improved. By the method, the high-nutrition convenient soup which has fresh flavor, is convenient to eat and does not contain excessive oil in large scale can be effectively produced on a large scale.

The invention relates to a method for producing functional grease containing rich phytosterin ester from high-acid-value vegetable oil. The method is characterized by comprising the following steps: (1) addition of reaction raw materials: adding phytosterin, high-acid-value grease and molecular sieve into a reaction kettle, adding 100-200ppm of antioxidant, heating to 45-60 DEG C, stirring and carrying out ultrasonic treatment to obtain a premixture, wherein the mole ratio of the phytosterin to free fatty acids in the high-acid-value grease is 1:1-5:1; (2) enzymatic ester exchange reaction: adding 5-40 g/L lipase into the premixture, and stirring to react at 45-60 DEG C under normal pressure for 6-12 hours; and (3) carrying out after-treatment on the product to obtain the functional grease containing rich phytosterin ester. The method can obviously lower the acid value of the high-acid-value vegetable oil and generate the new functional active component phytosterin ester, and the product is simple for separation and purification; and thus, the method can easily implement large-scale amplification.

The invention discloses a method for preparing nano porous silicon by utilizing doped silicon particles. The method comprises the following steps: selecting silicon particles with a certain doping concentration, washing with hydrofluoric acid, then enabling the silicon particles to react in a solution which is prepared by selecting nitrate, hydrofluoric acid and oxidant with assistance of ultrasonic process centrifugally washing the silicon particles, and finally washing the silicon particles by using dilute nitric acid to obtain the three-dimensional nano porous silicon. The optimal process parameters such as best constitution of chemical etching corrosive agent, volume ratio and specific concentration of a reaction reagent, reaction time, reaction temperature, ultrasonic frequency, processing time and the like are screened out through a great number of experiments, and the prepared high-purity three-dimensional doped porous silicon is regular in pore shape, uniform in distribution and applicable to the fields such as lithium batteries, solar batteries, semiconductors and sensors. The method is strong in process maneuverability, low in cost, high in yield and applicable to industrialized mass production.

The invention discloses a method of preparing purslane polyunsaturated fatty acids from purslane residues. The method comprises the following steps: selecting the purslane residues; raising the extraction pressure of subcritical fluid extraction by 0.8MPa and raising the extraction temperature by 40 DEG C, and extracting for 150 minutes; saponifying and hydrolyzing to prepare a fatty acid mixed before enrichment; heating and stirring urea and anhydrous ethanol for reflux at 60 DEG C in a ratio m/m of urea and fatty acid mixed before enrichment of 1 to 1 and in a ratio m/v of fatty acid mixed before enrichment and ethanol of 1 to 16; after dissolving urea and uniformly mixing with the fatty acid mixed before enrichment, heating and stirring for reflux for 20 minutes; cooling to room temperature; crystallizing for 24 hours at 4 DEG C; filtering to obtain the fatty acid mixed after enrichment. Verified by diabetic rat test, the prepared purslane polyunsaturated fatty acid microcapsule and soft capsule can effectively reduce the levels of blood glucose and insulin and have wide application value and prospect in preparing foods or medicines for preventing and treating diabetes.

The invention discloses a preparation method of insoluble and soluble squid melanin.The method includes the steps of refrigerating and smashing, centrifuging and shelling, secondary centrifuging, alkali dissolving, acid depositing and the like.Prepared squid ink is high in purity, high in extracting rate and suitable for industrial large-scale production and preparation.The invention further discloses application of soluble squid melanin prepared through the method in anti-radiation skincare products.

The invention discloses a method for synthesizing an intermediate of agricultural insecticide indoxacarb. The method comprises the following steps: (1) putting YCW-4, Lewis acid and methylbenzene into a reaction container according to a proportion, stirring, heating to a reacting temperature of 105-110 DEG C, dripping a methylbenzene solution of diethoxymethane, adding benzyl carbazate, and reacting at the reacting temperature until the reaction is carried out completely, wherein azeotrope of ethanol and diethoxymethane serving as a byproduct is constantly vaporized and eliminated in the reacting process; (2) stopping heating after the reaction is finished, cooling to room temperature under a stirring condition, concentrating at reduced pressure to reclaim methylbenzene, cooling and crystallizing the concentrate at low temperature by using a crystallization solvent, suction-filtering, washing, and baking to obtain light yellow crystal which is a target product, namely the intermediate of agricultural insecticide indoxacarb. The synthesizing method has the technical advantage of high yield.

The invention discloses a wheat bran oil production technology using subcritical butane extraction, and belongs to the field of food engineering. Wheat bran undergoes subcritical butane extraction multiple times, and the obtained extract liquid undergoes reduced pressure distillation to remove an extractant to obtain the wheat bran oil containing methyl palmitate, methyl linoleate and methyl oleate. The wheat bran is cyclically extracted by adopting a subcritical butane technology, and technologic optimization researches of factors affecting the yield of the wheat bran oil are carried out by adopting Box-Benhnken center combination response surface test design in order to obtain optimum technologic parameters; and a gas chromatograph-mass spectrometer (GC-MS) is used to analyze the fatty acid components of the wheat bran oil obtained through the subcritical extraction in order to provide reference for the development and the utilization of wheat bran resources. The wheat bran oil production technology is simple, allows the extraction rate to reach up to 86.92%, is suitable for industrial application, and provides a new way for the further utilization of the wheat bran.

The invention relates to a high energy horizontal planetary ball milling equipment for production of nanometer traditional Chinese medicine powder. The equipment comprises a main motor, a driving belt, belt wheels, a main shaft, a left wheel disc, a left half axle, a right half axle, ball milling jar sleeves, a right wheel disc, a planetary gear, an internal gear, an internal gear transmission shaft, a first shaft coupling, a worm and gear speed reducer, a second shaft coupling and a vice-motor, wherein the main shaft is horizontally disposed, a plurality of the ball milling jar sleeves are horizontally disposed and are circumferentially and uniformly arranged around the main shaft and between the left wheel disc and the right wheel disc, the main motor is driven by the driving belt and drives the main shaft to rotate, circular rotation of the ball milling jar sleeves around the axis of the main shaft is realized through the rotation of the main shaft, the left wheel disc and the right wheel disc, the ball milling jar sleeves are connected with the right half axle, the planetary gear on the right half axle is engaged with the internal gear, the internal gear is arranged on the internal gear transmission shaft, and the vice-motor drives the internal gear to rotate through the worm and gear speed reducer.

The invention discloses a method for producing a polystyrene extruded sheet profiled bar through a carbon dioxide foaming agent. The method includes the following steps: taking a polystyrene melt as the main component, and taking carbon dioxide as a polymer melt of the foaming agent, and simultaneously adding the two objects into an extruder according to a certain proportion to form a polymer melt; injecting carbon dioxide from the middle section of the extruder to the melt through a foaming agent injection system to form foamable gelatin; along with the forward conveying of the melt, and under the shearing action of a screw, fully mixing the foaming agent with the polystyrene melt; performing mixing and temperature reduction and cooling to the polymer melt through a heat exchanger, so as to reduce the temperature of the gelatin to the optimal foaming temperature; extruding the cooled gelatin through a die with required shapes to form the polystyrene extruded sheet profiled bar. The method for producing the polystyrene extruded sheet profiled bar through the carbon dioxide foaming agent, provided by the invention, is economic and environment-friendly, is simple in technology, and has excellent market prospect.

The invention discloses a flame-retardant knitted fabric. The warp of the fabric is DTY150D/48F, and the weft of the fabric is ATY320D/96F; the fabric is soaked in steeping liquid containing 35%-40% composite finishing agent at the temperature ranging from 70 DEG C to 75 DEG C for five hours to six hours and then is placed at the constant temperature ranging from 155 DEG C to 160 DEG C for five hours to seven hours after being taken out. The composite finishing agent is prepared with the following methods that 2 parts to 3 parts of carboxymethyl cellulose, 4 parts to 5 parts of vinyl trimethoxy silane, 8 parts to 9 parts of tetrakis hydroxymethyl phosphonium chloride, 1 part to 2 parts of phosphorous ester and three parts to four parts of triethoxy ethyl silane are mixed, then, 7 parts to 8 parts of cyclic phosphonate ester and 6 parts to 7 parts of molybdenum trioxide are synchronously and slowly added, material feeding is completed within eight minutes to ten minutes, continuous mixing lasts for ten minutes to fifteen minutes, and the composite flame-retardant agent is prepared. The flame-retardant knitted fabric has excellent flame-retardant performance.

The invention belongs to the technical field of deep-processing of corns and discloses a method for reducing viscosity of corn flour in a gelatinization process by means of an irradiation technology. According to the method, the corn flour serves as a raw material, the viscosity serves as a measurement index of a technical effect, and due to the single factor and response surface design, the heating area temperature, main engine rotating speed and feeding speed during double-screw extrusion expanding, the microwave strength, vacuum degree, drying temperature and drying time during microwave vacuum drying and the material moisture content, irradiation dose and irradiation time controlled in electron accelerator irradiation serve as critical control points. A processing technical route of 'double-screw extrusion expanding, microwave drying, superfine grinding and accelerator irradiation' is designed, and the viscosity value is reduced from 1078.57Pa.s to 5.89Pa.s when the size mixing mass concentration of the corn flour subjected to irradiation treatment is 10 percent. The production technical route is simple, and the comprehensive utilization of corn resources to develop a series of high-end starch sugar products and the industrialized demonstration research are promoted.

The invention belongs to the technical field of machinery manufacturing and particularly discloses a multidirectional precise die forging process for a valve body with a flange. The forging process comprises the following steps of (1) computer numerical simulation, (2) blank preparation, (3) blank heating, (4) die preparation, (5) multidirectional precise die forging forming, (6) forge piece cooling, (7) nondestructive testing, and (8) forge piece shot blasting treatment. According to the multidirectional precise die forging process, one-fire once forging is adopted for forming the valve body forge piece which is complex in shape, with an inner hole, precise in dimension and is close to a fabricated part, continuity of the valve body forging streamline and good overall performance are ensured, thus the production efficiency is improved, materials are saved, and energy consumption is reduced.

The invention relates to laser additive repair alloy powder and method of a laser welding blast hole of a cast aluminum radiator. The alloy powder mainly comprises AlSiMgMnCuFeNiZnSnNd. The alloy powder is prepared by adopting an air atomization method, and powder particles are in a spherical shape, and the particle size is 15-65[mu]m. Firstly, tensile strength and elongation are increased, and comprehensive mechanical properties are improved; secondly, higher repair speed can be provided, the generation of refractory alumina in repair welding repair process is reduced, and the burning loss ofalloy elements is reduced, so that the repair quality is improved; thirdly, a laser can provide higher energy density, and poor fusion phenomenon caused by good thermal conductivity of aluminum alloyis overcome; fourthly, compared with a traditional repair welding repair method, the laser additive repair method has fewer process parameters affecting repair quality, and the probability of secondary defects such as cracks and pores due to improper operation or improper process parameters can be reduced; and fifthly, compared with the traditional repair welding repair method, the laser additiverepair method has the characteristics of good repair quality, high applicability to the size of the blast hole at the repair place and the like.

The invention discloses a method for preparing a high-gas tightness nickel-copper alloy for a travelling wave tube and belongs to the technical field of alloy material preparation. The method solves the problem of high difficulty of high-gas tightness nickel-copper alloy preparation. The method comprises the following steps of before electrodeposition, polishing an anode pure-nickel plate and a cathode stainless steel plate by sand paper to remove surface oxides, carrying out ultrasonic cleaning orderly by acetone, alcohol and distilled water to remove impurities such as oil stain on the anode and cathode surfaces and to obtain the clean surfaces, and carrying out nickel-copper alloy electrodeposition by an electroplate liquid comprising 305-350g/L of nickel sulfate hexahydrate, 20-50g/L of copper sulfate pentahydrate, 75-90g/L of sodium citrate, 7-12g/L of sodium chloride, 35-50g/L of boric acid and the balance water under the conditions of a pH value of 5-7, current density of 4-8A/dm<2>, a temperature of 25-45 DEG C, electrodeposition time of 5-15h and a stirring speed of 50-120r/min. The method can prepare the high-gas tightness nickel-copper alloy and has simple processes and easily controllable technological parameters.

The invention discloses a heat pump drying room dehumidification control system based on time and a target. The system comprises a drying room, a human-computer interaction module used for human-computer interaction, a control module, an execution module, a heat pump unit, a temperature and humidity acquisition module and a dehumidification air valve. The control module is provided with a parameter storage inside. The invention further discloses a dehumidification method. The dehumidification method comprises the steps of firstly, carrying out drying operation according to an existing technology; secondly, carrying out air valve opening and closing cycle operation based on time on the dehumidification air valve; and thirdly, carrying out air valve opening and closing cycle operation basedon the humidity target and time on the dehumidification air valve till drying operation is finished. With the heat pump drying room dehumidification control system based on time and the target, and the dehumidification method, it can be guaranteed that effective dehumidification operation is carried out on the drying room, energy loss caused by the situation that the dehumidification air valve isopened for too long is avoided as well, it is avoided that a drying technology cannot be normally carried out because the temperature in the drying room cannot rise effectively, the purposes of energysaving and benefit increase are achieved, and the purpose of guaranteeing effective operation of the drying technology is achieved.