127 results about "European standard" patented technology

The invention discloses a preparation method of polyol copolyester. The preparation method comprises the following steps of carrying out slurry preparation, esterifying I, esterifying II, pre-condensing I, pre-condensing II, final condensing and pelletizing on terephthalic acid and glycol. The preparation method also comprises: carrying out ester exchange reaction on 1,3-isophthalic acid-5-sodium sulfonate and another polyol; diluting with the glycol, and then performing the esterifying II. In the preparation method, 1,3-isophthalic acid-5-sodium sulfonate and another polyol react in advance, thereby increasing the reaction probability of another polyol and ensuring that another poyol can reach the required mole ratio in a finished product. The preparation method is mainly applied to production of dye modified polyester by using various dihydric alcohols at normal temperature and normal pressure. The modified polyester is dyed by mainly using anode pigment, the used dye chromatograph is more than that of common polyester, dye-uptake rate can reach above 99%, colour fastness reaches 4-5 grade of European standard, and the color is more flamboyance and beautiful. When filament yarns are subjected to spinning, full-package rate is up to 95%-100%.

The invention discloses an N95 type negative ion mask which is a layered matter comprising four layers of materials, wherein the first layer is a receiving layer, the second layer is an adsorbing layer, the third layer is a filtering layer and the fourth layer is a nursing layer; the first layer is the outward layer when the mask is used; the layers are sequentially stacked together; and an ultrasonic mask special device is adopted for processing, then the N95 type negative ion mask in various required shapes can be produced, the N95 type negative ion mask is a special mask for the public for prevention and control of a variety of epidemic situations and is characterized in that the N95 type negative ion mask not only conforms to the functions of masks made of American N95 standard filtering material and European standard masks, but also has the function of killing various bacteria and viruses, and can prevent the viruses from entering into the oral cavity and the nasal cavity, provide better air negative ions for the respiratory tract and prevent the occurrence of various diseases of the respiratory tract, and the N95 type negative ion mask additionally has the characteristics of excellent air permeability, comfort, appropriate product cost and the like.

The invention relates to a filter paper coating material for auto filters, and the filter paper coating material for auto filters is prepared from the following components in parts by weight: 1-6 parts of far infrared ceramic powder, 2-20 parts of sepiolite nano fiber, 4-10 parts of synthetic fiber, 0.8-2 parts of silane coupling agent, 0.8-2 parts of diluent, 9-20 parts of sizing agent, 20-40 parts of styrene-acrylic emulsion and 60-96 parts of wood pulp. According to the coating material provided by the invention, the manufactured air, fuel and oil filters have remarkable comprehensive functions, the motor vehicle exhaust emission is decreased by 13-40%, the dynamic performance is improved by 5-15%, the fuel can be saved by 2-7% and the emission standard is up to the European standard IV.

The present invention discloses an extrusion and heat treatment method for a high speed railway locator aluminum material. The method comprises the following steps: preheating an aluminum rod to a temperature of 450-540 DEG C, preheating a mold to a temperature of 460-510 DEG C, preheating an ingot holding cylinder to a temperature of 400-450 DEG C, and then carrying out extrusion; carrying out online quenching on the profile after extrusion material discharging, wherein a temperature of the aluminum material after online quenching is 25-70 DEG C; naturally cooling to a temperature of 10-40 DEG C; standing for 100-160 h at a temperature of 10-40 DEG C; placing the obtained material into an aging furnace to carrying out artificial aging, wherein an aging temperature is 175-185 DEG C, and a thermal insulation time is 4-5 h; and cooling to a temperature of 10-40 DEG C after discharging out of the furnace. The high speed railway locator aluminum material produced according to the extrusion and heat treatment method has high mechanical properties, wherein tensile strength of the product is 3-31% higher than the European standard, yield strength of the product is 8-36% higher than the national standard, and elongation of the product is 28-100% higher than the national standard.

Method for producing an open molded sheet metal part from a non-hardenable aluminum alloy that has the following steps:

• • a) a sheet is prepared that is made of a non-hardenable aluminum alloy, the temper of which is H12, H14, H16, H18, H19, H22, H24, H26, H28, H32, H34, H36 or H38 according to European Standard EN 515:1993 and that in addition to aluminum includes at least magnesium and where necessary manganese;
  • b) the aluminum is heated at least locally to a temperature between 200° C. and 350° C. within a period of 1 to 60 seconds;
  • c) the heated sheet is placed in a cold forming die of a forming press and the sheet is formed, creating a molded sheet metal part.

The invention relates to a production process of water-permeable, air-permeable, oil-proof and wear-resistant gloves. The production process comprises such steps as covering gloves on a mold, preheating the gloves, immersing the gloves in a coagulating agent, immersing the gloves in gum, conducting surface treatment, drying, soaking, drying and vacuumizing, de-molding and the like. The process disclosed by the invention is simple to operate, and the manufactured glove product, on the basis of satisfying air permeability and water permeability, can achieve an excellent waterproof effect; and in a test conforming to European standard EN388, the wear-resistant performance of the gloves manufactured by the process far exceeds 4th level and achieves the level of 30000 turns, so that the wear-resistant performance of the product is greatly improved.

The invention discloses a combined charging system for an electric vehicle. The combined charging system comprises a battery management system a high-voltage distribution cabinet, a DC/DC converter, a power battery, a national standard charging socket, an European standard charging circuit and a lead acid battery power source formed by connecting two 12 V storage batteries in series. The battery management system is provided with a running wakeup terminal and a charging wakeup terminal. The national standard charging socket is provided with a wakeup line and a national standard connecting signal line. The wakeup line is electrically connected with the charging wakeup terminal. The national standard connecting signal line is connected with the battery management system. The European standard charging circuit comprises a stroke switch, a low-pressure replay, a PLC communication module and a European standard charging socket. The battery management system is electrically connected with the DC/DC converter, the PLC communication module and the national standard charging socket through a CAN bus. The combined charging system for the electric vehicle is convenient to use and good in charging effect.

The invention relates to grade-90 chain steel. The grade-90 chain steel is prepared from the following chemical components by weight percent: 0.20 to 0.24 percent of C, 0.15 to 0.35 percent of Si, 0.90 to 1.30 percent of Mn, less than or equal to 0.020 percent of P, less than or equal to 0.020 percent of S, less than or equal to 0.20 percent of Cu, 0.40 to 0.55 percent of Ni, 0.45 to 0.65 percentof Cr, less than or equal to 0.10 percent of Mo, 0.025 to 0.050 percent of Alt, and the balance of Fe and unavoidable impurities. Compared with the brand number corresponding to the national standardand European standard, the grade-90 chain steel disclosed by the invention ahs the following advantages: (1) the contents of C and Mn are increased, the cost is slightly increased, and the strength and hardness of the material are greatly improved; (2) the content of Ni is reduced, no Mo element is added, and the cost is greatly reduced; and (3) by reasonably optimizing the alloy elements, on thepremise of ensuring the qualification of breaking strength of the material, the welding performance of the material is also considered, and the cost of raw materials are greatly reduced.

Bitumen-impregnated cellulose fiber sheets include on one of their main surfaces, an adhesive primer layer, and, deposited on this adhesive primer layer, a fireproof coating including expandable graphite. In a preferred embodiment of the invention, the expandable graphite has a trigger temperature lower than 300° C. and the layer of expandable graphite corresponds to a dry matter basis weight of 80 to 140 g/m2. The sheets have a fire resistance fulfilling in particular the European Standard EN 13 501-5. They are mainly intended to be used as covering material, and in particular, as roof covering material.

The invention discloses an earphone interface circuit, which comprises an earphone jack and an identification module. The earphone jack comprises a first metal contact part, a second metal contact part and a third metal contact part. The third metal contact part is connected with an European standard earphone plug which is plugged into the earphone jack or one of a left-channel signal output end and a right-channel signal output end of an American-standard earphone plug; and the identification module is connected with the third metal contact part, and the earphone plug which is plugged into the earphone jack is judged to be the European-standard earphone plug or the American-standard earphone plug according to a voltage value of the third metal contact part. The invention also discloses a mobile communication device. Through the earphone interface circuit and the mobile communication device, the European-standard earphone and the American-standard earphone can be identified.

The invention relates to a hanging plate socket. The hanging plate socket comprises a shell and a hanging plate, wherein a socket core connected with a plug is arranged on at least one side surface of the shell; the hanging plate is hung on the outer side of the shell; a connecting conductive plate is arranged in the shell; one end of the connecting conductive plate is connected with the socket core and the other end of the connecting conductive plate is communicated with the hanging plate; an indicator light is arranged on the shell and is connected with the connecting conductive plate; and when the hanging plate is communicated with a power supply, the indicator light is turned on. Compared with the prior art, the hanging plate socket provided by the invention has the function of indicating conducting or not; and the safety of the socket is improved. In addition, in the form of the socket core, on one hand, production, disassembly and composition are facilitated; and on the other hand, the socket core can be separately replaced. Furthermore, a national standard jack or a British standard jack or an American standard jack or an European standard jack or a south African standard jack or an Australian standard jack can be selected as the jack on the socket core provided by the invention, so that the compatibility of the socket is improved; and the application range is wide.

The invention relates to environment-friendly fire resistant carpet latex with fire resistant function and a preparation process thereof. The fire resistant carpet latex comprises 26-36 percent of carboxylic styrene butadiene latex by weight, 7-11 percent of calcium carbonate by weight, 5-7 percent of ammonium polyphosphate by weight, 12-18 percent of trihydrate alumina, and 30-40 percent of water. The fire resistant carpet latex has better fire resistant effect, can radically eliminate the secondary pollution generated by burning the carpet when being applied to the carpet, and smoothly satisfies the requirements of the ship environment-friendly fire resistant product in the International Maritime Organization, the green environment-friendly performance test of Green Label Plus of the CRI in America, the requirement more than Cfl level of the public fire resistant product in the national force standard GB20286-2006, and the requirement more than Cfl level of the building fire-fighting product classification of the European standard EN13501-1.

The invention provides a charging connecting device of an electric vehicle. The device comprises a vehicle plug, a charging pile plug, a first adapter and a second adapter; the vehicle plug comprises a first AC power contact, a first medium line contact, a first protecting grounding contact, a first charging confirmation contact and a first control confirmation contact; the charging pile plug comprises a second AC power contact, a second medium line contact, a second protection grounding contact, a second charging confirmation contact and a second control configuration contact; the first adapter is connected with the vehicle plug through a first cable; the second adapter is connected with the charging pile plug through a second cable; the first adapter and the second adapter are equipped with a third contact and a fourth contact which are arranged in the same position and adapted to each other by the structure; in addition, the contacts with the same function in the vehicle plug and the charging pile plug can be correspondingly connected. With the adoption of the device, the problem that the electric vehicle produced according to the European standard and US standard cannot be charged through charging pile produced according to national standard in the prior art can be solved.

The invention discloses an automatic detection device of a transponder. A master control module is used for controlling a passive transponder detection module to detect the strength of an uplink signal of a passive transponder, the frequency and phase of an uplink link signal and a message read-write status; the automatic detection device can further simulate LEU (Lineside Electronic Unit) equipment, and detect the operating status of an active transponder through an active transponder detection module so as to judge whether the active transponder and the passive transponder are in good conditions, therefore the traffic safety can be effectively guaranteed; in addition, the automatic detection device can simulate the active transponder to generate a rail passing signal to detect the responding status of the LEU equipment; meanwhile, according to the technical scheme, the detection of large-capacity transponders can be realized, and the detection of an existing European standard transponders can be compatible.

The present invention discloses an aluminum alloy, which comprises the following components, by mass, 0.8-1.0% of Si, 0.75-0.95% of Mg, 0.01-0.09% of Cu, 0.45-0.85% of Mn, 0.10-0.24% of Cr, less than 0.25% of Fe, less than 0.15% of other impurities, and the balance of Al. A preparation method for the aluminum alloy comprises: adding raw materials to a furnace, and carrying out heating melting; adding a smelting co-solvent to carry out refinement; carrying out a pretreatment on the obtained melt; carrying out a smelting online treatment; filtering; casting; carrying out homogenization; and cooling to obtain the aluminum alloy. The high speed railway aluminum material produced by adopting the aluminum alloy has the following characteristics that: a tensile strength is 3-30% higher than the European standard, a yield strength is 8-36% higher than the national standard, elongation is 2-100% higher than the national standard, fatigue resistance can be more than 500 thousand times, and the aluminum material is suitable for high speed railway locators.

The invention relates to a production method of high-strength marine aluminum alloy cylinder profiles. The production method comprises aluminum alloy ingot casting; high-strength aluminum alloy cylinder profile extrusion and online quenching; high-strength aluminum alloy cylinder profile tension extension and aging treatment; high-strength aluminum alloy cylinder profile sampling and inspection; high-strength aluminum alloy cylinder profile test and packaging. According to the production method of the high-strength marine aluminum alloy cylinder profiles, the high-strength aluminum alloy cylinder profiles are produced through the online quenching and accordingly various performance indicators of the products meet the European standard requirements, the labor productivity is improved, the cost is saved, the order requirements of users are met, the localization production of the high-strength marine aluminum alloy cylinder profiles is achieved, and the import is replaced.

The invention discloses methanol-diesel for vehicle. According to volume portion, the composition formulation comprises 20 to 65 portions of diesel oil, 30 to 70 portions of methanol, 0.5 to 1.5 portions of oleic acid, 0.5 to 2.0 portions of ethyl acetate, 0.5 to 1.0 portions of diphenyl carbonate, 0.5 to 1.5 portions of petroleum ether, 0.3 to 0.7 portions of cyclopentyl ferrocen, 0.2 to 0.8 portions of nitric acid iso-octyl, 0.5 to 2.0 portions of normal butyl alcohol and 0.5 to 1.5 isobutyl alcohol. The formulation is suitable for the normal diesel oil of any label, the technical problems that the methanol-diesel is easy to be delaminated and the low temperature cool start is imperfect are solved, and the source of the required raw materials and auxiliary materials is wide and the price is low; the cetane value of the formulated methanol-diesel for vehicle can reach 57, the flash point can reach 88 DEG C, and the exhaust emission is accorded with the requirements of the 3# European standard; the using of the methanol-diesel for vehicle has important social significance and economic value for energy conservation and environmental protection.

The invention discloses a preparation method of a fluorescent yellow polyester-cotton fabric. A carrier of reducing a polyester dyeing temperature is added in dyeing bath of disperse fluorescent yellow 10GN and active fluorescent yellow FL of the polyester-cotton fabric, so that the dyeing temperature of the polyester disperse fluorescent yellow 10GN is reduced, and most hydrolysis of reactive dyes under a high-temperature condition is prevented; and a dyeing method of fixing the active fluorescent yellow FL on cottons after dyeing the disperse fluorescent yellow 10GN on polyesters is adopted, so that all quality indexes of the dyed polyester-cotton fabric are accordant with that of the dyed fabric of a two-bath two-step method. The fluorescent dyeing is performed for the polyester-cotton fabric by adopting a one-bath one-step dyeing process, so that the production cost is reduced, and the quality of the obtained product is accordant with that of the two-bath two-step method, and satisfies the requirements of European standards EN471.

The invention provides an export S355J2 titanium-added steel plate and a production method thereof. The export S355J2 titanium-added steel plate contains the following chemical ingredients by wt%: not more than 0.16% of C, 0.25-0.45% of Si, 1.0-1.4% of Mn, not more than 0.02% of P, not more than 0.004% of S, 0.05-0.06% of Ti, not more than 0.40 of CEV, and the balance of ion and inevitable impurities. Total heating time of continuous casting billet heating is not less than 9min/cm, the highest heating temperature is 1220 DEG C, soaking temperature is not more than 1200 DEG C, and soaking zone in-furnace time is more than 90min; the first stage start rolling temperature is not more than 1140 DEG C, and total reduction rate is more than 60%; the second stage start rolling temperature is 950 DEG C, finial rolling temperature is less than 900 DEG C, and deformation rate is controlled to 50%-60%; stacking temperature is not less than 400 DEG C, and stacking time is not less than 16h. The production technology provided by the invention has short technological process, and is low in production cost, suitable for large-batch production and beneficial for increasing export volume; product ingredients and product performance of the steel plate completely meet the requirements of European standard EN10020, Reh of the steel plate is up to 386MPa, Rm of the steel plate is up to 522MPa, A value of the steel plate is 28%, and average impact value of the steel plate at -20 DEG C is up to 172J.

The invention discloses a European-standard R320Cr steel rail. The steel rail is prepared from the following ingredients by weight percent: 0.73 to 0.78% of C, 0.75 to 0.85% of Si, 0.95 to 1.05% of Mn, 0.90 to 0.95% of Cr, smaller than or equal to 0.020% of P, smaller than or equal to 0.025% of S and smaller than or equal to 0.004% of Al. The invention further discloses a producing method of the European-standard R320Cr steel rail. The European-standard R320Cr steel rail producing method disclosed by the invention improves a steel rail producing efficiency and reduces energy consumption and production cost; the obtained European-standard R320Cr steel rail has good straightness, small residual stress and high quality; abrasion resistance is improved, service life is prolonged, rail transportation safety is improved, and a requirement of railway speed increasing development is favorable for being met.

The invention discloses a lubricating coating with low friction and a long service life. The coating comprises, by mass: 15-25% of PMR (polymerizable monomeric reactant) type thermosetting polyimide resin, 3-8% of molybdenum disulfide powder, 0.5-4% of graphite powder, 0.1-0.5% of nanometer lanthanum trifluoride, and the balance mixed solvent. In the invention, the lubricating coating with low friction and a long service life is free of lead oxide, cadmium oxide, antimony trioxide and other metallic compounds forbidden by European standards. A paintcoat prepared with the coating of the invention can have high hardness, oil resistance and anti-irradiation property, low friction coefficient and long wearing life, etc.

The invention provides a converter for converting a national-standard automobile charging interface into a European-standard automobile charging interface. The converter comprises a converting charging socket and a converting charging plug. The converting charging socket is connected with a national-standard charging plug, and comprises a live wire jack, a zero line jack, a grounding jack, a charging control jack and a gun head detection jack. The converting charging plug is connected with a European-standard electrical automobile charging socket, and comprises a live wire jack, a zero line jack, a grounding jack, a charging control jack and a gun head detection jack. The live wire jack, the zero line jack, the grounding jack, the charging control jack and the gun head detection jack of the converting charging plug are connected with the live wire jack, the zero line jack, the grounding jack, the charging control jack and the gun head detection jack respectively in one-to-one correspondence. European-standard automobile can use a national-standard charging pile for charging via the converter, and operation is convenient.