86 results about "Technical performance measure" patented technology

The invention discloses an insulating wire cable of irradiation cross-linking modified ethane-perfluoroethylene polymer (X-ETFE) with metal screening layer and protecting layer, which is characterized by the following: the insulating thickness is 0.01-0.25 mm, which improves insulating wire heatproof grade; the product satisfies the aviation cable need under kinds of terrible climates.

The present invention relates to improved industrial urea producing method and apparatus. The production process includes the reaction between ammonia and CO2 inside the synthesizing tower with efficient tower plates at the synthesis temperature and pressure, the reverse direction contact between the urea synthesizing solution with CO2 in the gas stripping column to separate unreacted ammonia and CO2, and the further treatment of urea synthesizing solution containing unreacted ammonia and CO2 to obtain urea. The urea product has the main technological indexes of biuret not more than 0.5 %, sulfate not more than 0.01 %, free ammonia not more than 0.015 %, water not more than 0.3 %, ammonia content 46.4 %, Fe not more than 0.005 % and granularity 1.0-2.4 mm, and is used as fertilizer widely and for production of low toxicity ureaformaldehyde resin, etc.

The invention discloses a ball worm gear pair. Steel ball rolling in a spiral groove in the outer edge of a worm and worm gear is used for replacing meshed friction movement between threaded teeth of a worm and tooth faces of a worm gear to push the worm gear to rotate, and therefore the transmission efficiency and all technological performance indexes are greatly improved. The spiral groove in the worm and worm gear can be in the shape of a single arc or double arcs or a straight outline groove by means of the normal section of the worm and worm gear or the axial section of the worm. The enveloping manner is mainly a double enveloping manner and can also be a single enveloping manner. The steel ball circulating manner includes worm inner circulation and worm gear inner circulation. A steel ball rolls in a guide piece, the spiral groove, a reverse backflow device, an inner rolling way and an outer protection cover of the worm and worm gear in a circulating mode. The ball worm gear pair is used for transmitting movement and torque between two staggered shafts in space, the speed of movement can be reduced and can also be improved, the speed reduction movement with the crossed angle sigma of the shafts being 90 degrees is mostly commonly used, and the ball worm gear pair is widely applied in mechanical transmission.

A distributed comprehensive test system for an unmanned aerial vehicle measurement and control data chain is used for testing technical performance indexes of unmanned aerial vehicle measurement and control data chain equipment. The unmanned aerial vehicle measurement and control data chain equipment is divided into two parts: a ground data terminal and an onboard data terminal; the comprehensive test system is designed with two cabinets placed nearby the ground data terminal and the onboard data terminal respectively; the test is implemented in an electromagnetic environment of a typical working condition, so the system is designed with an electromagnetic environment interference simulation cabinet (anti-interference cabinet for short) placed nearby the onboard data terminal to emit interference signals, thus testing the anti-interference performance of the unmanned aerial vehicle measurement and control data chain equipment. The distributed comprehensive test system for the unmanned aerial vehicle measurement and control data chain comprises a main test cabinet connected with a ground station, a secondary test cabinet connected with an unmanned aerial vehicle, the anti-interference cabinet, a multi-path reflection plate, an antenna, interconnecting optical cables, supporting equipment and the like.

It is an aim image automatic identifying and rapid tracing method, which comprises the following steps: first to establish aim image valve grey scale grade; second to establish error and correlation index; then to form mode image and spot image characteristics matrix on the base of valve value grey scale and to form correlation functions under the condition of discreteness, such as variance, normalization correlation index, inner product operation in the linear space of all two-dimension matrix; to get the correlation definition according to norm and angle in the Euclidean space starting from the linear space; then to get a judge formula by use of inner product definition to realize the rapid identification of the aim.

The invention discloses the puncture resistance water-proof sheet and preparing method, comprising 75-85 parts low density polyethylene, 5-10 parts thermoplastic elastomer SBS, 2-8 parts color masterbatch, 2-5 parts auxiliary agent and 5-10 parts filling agent. The invention uses extrusion forming method. The sheet has advantages of good water-proof property, antiseep, weatherability, high hot strength, low linear expansion, big frictional factor, large temperature range, long life and low cost. The invention can be used in underground, road, harbour, and culverts.

The invention discloses a storage battery anode lead plaster capable of enhancing SAE standard high temperature service life and a preparation method, aiming at solving the problem of high temperature service life of lead-acid storage batteries. The technical scheme is that the lead plaster raw materials are prepared by the following substances in parts by weight: 100 of lead powder, 0.05-0.1 of fiber, 0.1-1.0 of superfine barium sulfate, 0.05-0.2 of carbon black, and 0.1-0.4 of magnesium sulfate. The invention selects superfine barium sulfate as anode additive, thus delaying contraction and rigidification of anode plate under high temperature and prolonging service life of the storage battery; magnesium sulfate and carbon black improve the porosity of the anode active substance, facilitates dispersion of sulfuric acid and is beneficial for starting performance of the storage battery. Proved by test data, main technical performance index can perfectly achieve and surpass the standard requirement, and satisfy the requirement of the automobile on the high temperature service life of the storage battery.

The invention discloses a polytetrafluoroethylene modified asphalt waterproof coiled material and a preparation method thereof. Petroleum asphalt is used as a base material, then polytetrafluoroethylene, a filler and an auxiliary agent are added, and the above-mentioned materials are subjected to extrusion, calendering and molding so as to prepare the polytetrafluoroethylene modified asphalt waterproof coiled material. The polytetrafluoroethylene modified asphalt waterproof coiled material provided by the invention has a great number of excellent comprehensive economic and technical characteristic indicators such as excellent weatherability, high tensile strength, high elongation percentage, aging resistance, strong adaptability to deformation, a wide temperature adaptation range, strong and high bonding performance, a long service life, no pollution, easy construction and low cost, and can be used in waterproof projects like passenger dedicated line bridge deck concrete, subways, roads, ports and wharfs and large-scale underground projects.

A high-capacity long-life hydrogen-bearing alloy as electrode of secondary Ni-metal hybride battery has a chemical formula: Mm1-yMy(NiCoN)x, where Mm is the Ce0enriched mixed rare earth, y=0.01-0.8, x-2-4, M is chosen from Mg, Ca, Be, etc, and N is chosen from Mn, Fe, Mo, Co, etc. Said secondary bettery features high activating performance, initial capacity and high-multiplication discharge performance.

The invention discloses an ethylene-propylene-diene monomer modified bitumen waterproof coiled material and a preparation method thereof. The ethylene-propylene-diene monomer modified bitumen waterproof coiled material is prepared by taking bitumen as a base stock and adding an ethylene-propylene-diene monomer, an SBS (styrene butadiene styrene block copolymer) sizing material, a reinforcing agent and the like. The ethylene-propylene-diene monomer modified bitumen waterproof coiled material provided by the invention has lots of excellent integrated economic and technical performance indexes such as excellent waterproofing, flame retardance, seepage resistance, weather resistance, high tensile strength, high percentage of elongation, ageing resistance, well deformation adaptability, wide temperature application range, high cementation, long service life, easy construction and low cost of construction. The ethylene-propylene-diene monomer modified bitumen waterproof coiled material can be used for waterproof engineering of building roofs, bridge floor concrete, undergrounds, roads and the like.

The invention discloses an anode lead paste with high utilization rate of active substances of a lead-acid battery and a preparation method thereof, and is used for improving the utilization rate of the active substances of the anode and the low-temperature starting ability of the lead-acid battery and prolonging the service life of the battery. The improved lead paste comprises the following components in unit by weight: 100 units of lead powder, 0.01 to 1.5 units of graphite powder, 0.01 to 1.0 unit of sodium sulfate, 0.03 to 0.12 unit of polyester fiber and 7 to 14 units of acid. A proper amount of graphite powder is added into the formula of the lead paste so as to improve the performance of the anode; a proper amount of sodium sulfate is added, and is dissolved and separated out during formation, so that the porosity of the active substances is improved and the reaction area is increased; meanwhile, the separated sodium sulfate enhances the conductivity of the electrolyte in the battery, and the deep discharge performance of the battery is improved. The test data indicates that: for the battery made from the anode lead paste, the main technical performance indexes can fully meet and exceed the related standard requirements and meet the requirements of various vehicles.

The invention discloses a lead-free bimetallic sliding bearing, aiming to provide another bimetallic sliding bearing which has the technical performance index equal to that of lead-bearing bimetallic sliding bearings, contains no lead or bismuth and is prepared by lead-free copper alloy bearing materials. The technical scheme is as follows: the bimetallic sliding bearing is prepared by conventionally rolling and molding the bimetallic sliding bearing sheets; the bimetallic sliding bearing sheets take steel as the base material; and a layer of alloy copper powder is sintered on one surface of the base material to prepare the bimetallic sliding bearing sheets which are characterized in that the alloy copper powder comprises the following components in percentage by mass: 5-12% of Sn, 1-2% of Ni, 0.05-0.20% of In and the balance Cu and inevitable impurities. The invention provides another broad way for manufacturing the lead-free bimetallic sliding bearing and has positive effects on environmental protection and human health.

The invention discloses an antiflaming puncture-resisting water-proof sheet as well as a manufacturing method and an application thereof; the sheet consists of 75-90 parts of puncture-resisting water-proof sheet raw material, 10-20 parts of composite antiflaming master batch and 1-5 parts of other assistants. Puncture-resisting water-proof sheet raw material, composite antiflaming master batch and other assistants are metered and mixed evenly according to formula, and the extrusion calendaring formation method is used for manufacturing the antiflaming puncture-resisting water-proof sheet. The antiflaming puncture-resisting water-proof sheet of the invention features numerous excellent comprehensive economic and technical function indexes, such as excellent flame retardance, water resistance, leakage resistance, weather resistance, high tensile strength, low line body expansion, large friction coefficient, strong deformation adaptability, wide temperature adaptation range, convenient usage, long service life, easy construction, low manufacturing cost and the like. The invention can be used for water proofing work such as high speed railway, tunnel, culvert, underground large-scale engineering and the like.

The invention discloses a chlorinated polyvinyl chloride waterproof coiled material and a preparation method thereof. The material is composed of a base material of chlorinated polyvinyl chloride, and added materials of a plasticizing agent, a toughening agent, a filling agent, and other additives. An extrusion calendar molding method is adopted, and the chlorinated polyvinyl chloride waterproof coiled material is produced. The chlorinated polyvinyl chloride waterproof coiled material provided by the invention has various excellent comprehensive economic and technical performance indicators such as excellent water resistance, excellent flame retardance, anti-leakage performance, weatherability, high tensile strength, high elongation, aging resistance, high deformation adaptability, wide temperature adaptation range, high adhesive strength, long service life, easy construction, low cost, and the like. The material can be used in waterproofing works of architectural roofing, bridge deck concrete, subways, and roads.

The lead plaster for use in battery anode comprises 100 proportion lead powder, 0.05-0.06 proportion fabric and 0.1-0.3 proportion high purity natural graphite powder. The oxidation-proof anode ingredient is selected to improve charging property at low voltage and attain more cycling times.

A method for managing one or more technical performance measure parameters is provided. The method includes defining the one or more technical performance measures parameters and determining, tracking and trending one or more achieved capabilities and one or more projected capabilities of the one or more technical performance measures parameters.

The invention provides a preparation process and equipment of a powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material. The preparation process comprises the steps of multicomponent blended material matching, ultraphonic solid-phase stirring and mixing, powder low-temperature isostatic pressing forming, successive sintering shaping and product cleaning and packaging. In the preparation process and equipment, a blended material matching scheme that lanthanide series ductile light rare-earth element monoatomic microbead powder is blended in a high proportion on the basis of metal magnetostrictive material monoatomic microbead powder is designed and selected and the powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material is successfully produced and manufactured through innovative technologies, i.e. the ultraphonic solid-phase stirring and dispersive mixing, forming mold charging heating, the powder low-temperature isostatic pressing forming, the successive sintering shaping, and the like, equipment and process parameters, and various technical performance indexes already reach a leading domestic level. Nowadays, the powder metallurgic multicomponent rare-earth alloy giant-magnetostrictive material already becomes an important basic function material in the information age and is widely used for the fields of industry, national defense, marine exploration, environmental protection, medicine and health, and the like.

The invention discloses environment-friendly nitro pencil head lacquer and a preparation method thereof. The nitro lacquer is prepared from the following components in parts by weight: 60-70 parts of nitro-cotton, 10-20 parts of nitro paste, 10-20 parts of Chinese tallow modified alkyd resin, 1-5 parts of acrylic resin, 1-5 parts of citric acid mono/diglyceride, a solvent accounting for 10-15% of the mass usage amount of the Chinese tallow modified alkyd resin, and an assistant accounting for 5-15% of the mass usage amount of the nitro-cotton. Compared with the prior art, the environment-friendly nitro pencil head lacquer disclosed by the invention has the advantages that the large-scale production of the high-quality nitro pencil head lacquer is realized, the working strength is relieved, the production environment is improved, the product quality is improved, technical performance indexes reach or exceed quality requirements of similar products in the foreign market, the standards of European Union and America are met, the usage of an aromatic diluent is avoided, the film curing speed is improved, and the production cost and pollution of an organic solvent on the environment can be reduced.

The invention provides a method of producing an alloy plate hammer based on quenching and liquid die forging, belongs to the field of manufacturing of the plate hammer of a crusher, and is realized ona liquid die forcing machine based on a special alloy plate hammer die. The alloy plate hammer prepared through adopting the special alloy plate hammer die comprises the following steps of 1, smelting liquid steel; 2, preheating a die; 3, closing the die and performing cooling water circulation flow; 4, casting; 5, performing liquid extrusion; 6, performing demolding of blanks; 7, inspecting andfinishing; 8, performing process treatment of five-stage quenching + wind quenching + spray quenching; and 9, tempering. Technical performance indexes of the prepared alloy plate hammer are presentedas follows that 1, the hardness is improved by 10%-15%; 2, the tissue toughness of a casting is improved by 160%; 3, the weight is increased by 8%-15%; and 4, the service life is prolonged by 2 times.

The invention provides a dry vibration mix for a tundish and a preparation method thereof. Based on the total mass of the dry vibration mix for a tundish, the dry vibration mix for a tundish is prepared from the following components in percentage by mass: 45-65% of fused magnesite, 15-25% of binding agent, 5-10% of aluminum hydroxide micropowder, 5-10% of calcium carbonate powder and the balance of impurity. The dry vibration mix finished product for a tundish is favorable in various technical performance indices; the raw materials are green and environmentally friendly, and can purify molten steel; the dry vibration mix realizes easy tundish removal and tundish turning, lowers the work intensity, increases the service life and saves the cost; and the dry vibration mix is simple in preparation process and is formed by a dry method during construction, thereby realizing a favorable construction environment.

The method includes steps: (1) under certain temperature and acidity, using industrial waste scrap iron and industrial sulfuric acid to produce ferrous sulfate; (2) using chemical subtraction including crystallizing and special type flocculant, and superfine filtering technique to remove harmful impurities; (3) mixing ferrous sulfate, manganese sulfate, and zinc sulfate, and using ammonium bicarbonate as precipitator; adopting chemical coprecipitation method to produce deposits of ferric carbonate, manganese carbonate, and zinc carbonate; (4) through washing, filtering, spray drying, and heat treating procedures to produce grain material of MnZn soft-magnetic ferrite. Removing SiO2 and Al2O3 etc harmful impurities effectively, the method produces soft-magnetic ferrite with indexes of technical performance including high purity, stable capabilities, magnetic permeability, and power waste reaching to operational requirement of users.

The invention discloses a self-walking type peanut combine which comprises a machine frame (17) arranged on a track underpan (18). A depth limiting device (1), an excavating device (2), a soil smashing device (3), a primary conveying device (4), a secondary conveying device (5), a lifting device, a tertiary conveying device (9), a fruit seedling picking device (10), a fruit picking device (11), a fruit storage box (12), a lifting conveying device (13), a primary cleaning device (14), a secondary cleaning device (15), and a fan (15) are sequentially arranged on the machine frame (17) from the front to the back. A motor (8) is arranged in the center of the machine frame (17). A manipulation device (7) is arranged at one side of the machine frame (17). The lifting device (6) is connected with the excavating device (2) and controls lifting of the excavating device (2). The tertiary conveying device (9) is arranged at the other side of the machine frame (17) and is connected with the fruit picking device (11) through the fruit seedling picking device (10). The fan (16) is arranged below the back of the fruit picking device (11). The primary cleaning device (14) and the secondary cleaning device (15) are arranged under the fruit picking device (11) in sequence. The lifting conveying device (13) is connected with an outlet of the secondary cleaning device (15) and conveys peanuts after being harvested to the fruit storage box (12). According to the self-walking peanut combine, a plurality of functions of excavating, soil smashing, collecting, conveying, fruit and seedling separating, cleaning, fruit storing and the like are concentrated into one, various processes of harvesting the peanuts are achieved at one step, when the self-walking peanut combine is used for operating, operation is stable, noises are low, safety coefficient is high, adjustment and operation are easy, all technical performance indexes can satisfy design and agriculture requirements.

The invention relates to a method of preparing a concrete building material by utilizing high-silicon type iron tailings. The method comprises the following steps: recycling and storing the high-silicon type iron tailings; detecting the ingredients of the tailings; performing mechanical chemical activation, grain size analysis and activity analysis on the obtained tailings; mixing the tailings obtained by processing with sand, stones, cement and water according to a certain proportion; and utilizing a normal-temperature solidifying and molding technology to prepare the prepared mixture into the concrete building material with various technical performance indexes capable of meeting the practical needs of the engineering. The method of preparing concrete building material by utilizing high-silicon type iron tailings disclosed by the invention can be used for increasing the utilization force of the high-silicon type iron tailings and improving the current situation that the recovery rate of the existing tailings is not high.