79results about How to "Improve green performance" patented technology

The invention discloses steel with good property and ultra-high strength for engineering machinery and a manufacturing method thereof. The steel comprises the following components by weight percent: 0.15 to 0.20 percent of C, 0.35 to 0.55 percent of Si, 0.95 to 1.35 percent of Mn, at most 0.013 percent of P, at most 0.0030 percent of S, 0.75 to 1.25 percent of Cr, 0.45 to 0.65 percent of Mo, 0.0010 to 0.0020 percent of B, 0.005 to 0.013 percent of Ti, 0.010 to 0.030 percent of Nb, 0.030 to 0.070 percent of Al, at most 0.0060 percent of N, at most 0.0030 percent of O, 0.001 to 0.004 percent of Ca, and Fe and inevitable impurities in balance. The invention optimizes the DQ and offline tempering process, adopts the ausforming process, ensures that the microscopic structure of finished steel plates becomes fine low-carbon tempered martensite and the average colony size is smaller than 20 micrometers, obtains ultra-high strength steel plates with good low-temperature flexibility, weldability and anti-delay cracks, solves the problem of overquenching of superficial layers of the ultra-high strength steel plates, and is particularly applicable to equipment manufacturing industries of large-scale engineering machinery and the like.

The invention relates to low-cost and high-performance ultrahigh-strength steel for engineering machinery and a manufacturing method thereof. The low-cost and high-performance ultrahigh-strength steel comprises the following components in percentage by weight: 0.18-0.22 percent of C, less than or equal to 0.10 percent of Si, 1.30-0.60 percent of Mn, less than or equal to 0.013 percent of P, less than or equal to 0.0030 percent of S, 0.30-0.60 percent of Cr, 0.10-0.30 percent of Mo, 0.0010-0.0020 percent of B, 0.008-0.018 percent of Ti, 0.010-0.030 percent of Nb, 0.030-0.070 percent of Al, less than or equal to 0.0050 percent of N, less than or equal to 0.0030 percent of O, 0.001-0.004 percent of Mg and the balance of Fe and inevitable impurities. According to the low-cost and high-performance ultrahigh-strength steel, ultrahigh strength of a steel plate is obtained by adopting combination of controlled rolling and online DQST and on the basis of little addition of precious Mo alloy; meanwhile, the low-temperature toughness, the weldability and the fatigue impact load resistance of the steel plate are also excellent; the problems of mutual contradiction among the strength, the low-temperature toughness and the delayed crack resistance of an ultrahigh-strength steel plate as well as surface (subsurface) layer quenching are successfully solved.

The invention discloses ultrahigh toughness steel plate for deep-water pressure resistant shell and manufacture method thereof. The steel plate comprises (by wt%) C 0.05-0.09, Si less than or equal to 0.10, Mn 0.45-0.95, P less than or equal to 0.012, S less than or equal to 0.0030, Cr 0.40-0.80, Mo 0.40-0.80, Ni 3.50-5.50, Cu 0.20-0.50, Ti 0.003-0.010, Als 0.010-0.030, V 0.040-0.080, N less than or equal to 0.0060, O less than or equal to 0.0030, Ca 0.001-0.004, and Fe and unavoidable impurity in balance. The method adopts optimized TMCP and offline quenching and tempering (QT) process, endows microscopic structure of product steel plate with fine low carbon tempered martensite and small amount of tempered bainite, with average packet size smaller than 15 Mum, solves the problem of overquenching of ultrahigh strength steel plate surface, and is especially suitable for use in hydroelectric pressure water pipe and steel yoke pipe of ultrahigh water head (greater than or equal to 1,200 m) power station, and polar ocean platform and deep-water pressure resistant shell.

The invention relates to a preparation method of an environmentally-friendly flame-retardant polyester bulked continuous filament. The method comprises the following steps: a, preparing a silane coupling agent-modified styrene-acrylic copolymer; b, preparing flame-retardant master batches; c, spinning. Due to the adoption of phosphorus-nitrogen type and boron-silicon type polymer flame retardants, a compounded flame retardant of the organic silicone-modified styrene-acrylic copolymer with cross-linking capacity and a small amount of montmorillonite, and the polymerization of the three flame retardant components, the environmental friendliness of a flame-retardant system is improved; the limit oxygen index of the obtained bulked continuous filament is greater than or equal to 28 percent, and the bulked continuous filament is low in smokiness, low in toxicity and resistant to molten droplets; the smokiness of a spinning process is low, and the spinnability is good.

The invention discloses a green antibacterial carbon fiber reinforced PVC (polyvinyl chloride) material and a preparation method of the material. The material comprises the following raw materials in parts by weight: 100 parts of PVC resin, 3-6 parts of titanium dioxide, 5-10 parts of modified kaoline, 5-12 parts of shock-resistant modifier, 3-5 parts of environment-friendly stabilizer, 0.5-3 parts of lubricant, 4-8 parts of inorganic antibacterial agent, 0.3-0.5 parts of ultraviolet absorber, 5-10 parts of modified barium sulfate, 2-5 parts of composite assistant, 1-20 parts of chopped carbon fiber treated by modified resin coating, and 0-5 parts of brightener. The green antibacterial carbon fiber reinforced PVC material is excellent in fatigue resistance, excellent in high and low temperature resistance, excellent in water resistance, small in expansion coefficient, light in weight, excellent in antibacterial property, and environment-friendly.

The invention provides nanometer titanium dioxide modified starch mixed slurry for textile use. The nanometer titanium dioxide modified starch mixed slurry comprises starch, PVA (polyvinyl acetate), acrylic ester, soybean protein, an organic silicone emulsion, sodium hydroxide, nanometer titanium dioxide and water; and the specific preparation method comprises the following steps: adding acetate starch to 5%-7% of nanometer titanium dioxide solution, and stirring at a high speed for 30-50 minutes so as to disperse the starch evenly, then adding the PVA, the acrylic ester, the soybean protein and the organic silicone emulsion, and adding sodium hydroxide to adjust the pH value to be 7-10; stirring at the speed of 150-200r/min for 30 minutes, heating to 80-90 DEG C and stirring at a constant temperature for 2-3 hours, so as to obtain the nanometer titanium dioxide modified starch mixed slurry for textile use. The sizing property of the nanometer titanium dioxide modified starch mixed slurry for textile use exceeds the sizing property of a mature formula with relatively high PVA content; and the nanometer titanium dioxide modified starch mixed slurry is good in degradation property and small in environmental burden, and can be applied to the sizing process of yarns and fabric.

The invention discloses a preparation method of a green environmental-protection attapulgite anti-sedimentation adsorbent for buildings, wherein the preparation method includes the steps: selecting: selecting natural mineral attapulgite clay and processing to obtain an attapulgite clay raw material; pretreatment: pouring the attapulgite clay raw material into a grinding device, grinding, after grinding into powder, pouring into molecular sieve, and screening; screening: selecting the attapulgite clay with the particle size of 2 mm-4 mm; decomposition: putting the selected attapulgite clay withthe particle size of 2 mm-4 mm into a stirrer, adding an acidic solution in a proportion of 11-45%, and then stirring evenly; filtering: stirring for a certain period of time, then pouring into a filter sieve, filtering, and removing impurities contained at the interior and the surface, to obtain a suspension; activating: heating and activating the suspension, and activating the suspension with azinc chloride solution with the concentration of 1-1.5 mol/L to obtain an attapulgite clay system; and roasting, discharging, cooling, cleaning, drying, grinding, sieving and preserving.

The invention discloses a surface polishing device for machining a magnetic ring, which comprises a bottom frame, a bottom cabinet and a clamp, wherein a dust collecting pipe is arranged in the bottomcabinet through bolts; a protective cover is welded to the top of the bottom cabinet; a hydraulic rod is installed at a side in the protective cover through bolts; a top plate is installed on the topof the hydraulic rod through bolts; an installation frame is welded to the bottom of the top plate; the bottom frame is installed on one side of the bottom of the installation frame through bolts; adust collecting screen plate is installed on the bottom in the protective cover through bolts; and the clamp is installed in the protective cover through bolts. According to the invention, the protective cover is installed at the top of the bottom cabinet so as to make the device form a closed polishing space. Thus, dust generated by polishing is effectively prevented from floating in the air andfalling into mechanical parts to damage internal parts. Therefore, the service life of the device is ensured and the practicability of the device is improved.

The invention provides an aluminum silicon carbide high-power LED radiator and a preparation method thereof. The preparation method comprises the following steps: proportioning, ball-milling and mixing, granulating, and pretreating raw materials to obtain granulated powder; forming the granulated powder into a silicon carbide ceramic prefabricated part through a cold isostatic pressing technology; sintering the formed silicon carbide prefabricated part; smelting a ZL101A aluminum alloy to obtain an aluminum alloy melt; putting the silicon carbide ceramic prefabricated part into a steel mold through a vacuum pressure infiltration method, pressing molten aluminum alloy into pores of the silicon carbide ceramic prefabricated part by adopting high-pressure inert gas at a certain temperature in a vacuum environment, and carrying out heat treatment to prepare an aluminum silicon carbide casting; and carrying out surface metallization plating process treatment on an aluminum silicon carbide finished product to form the aluminum silicon carbide high-power LED radiator. The method overcomes the defects of complex process, expensive equipment, long production period and high energy consumption, has the advantages of compact products, excellent performance, simple operation and low cost, and is wide in application range.

The invention discloses a multifunctional integrated bay window matching tank for green buildings, and relates to the technical field of equipment for green buildings. The multifunctional integrated bay window matching tank comprises a tank (1), a partition plate (2), an adjustable sunshade plate (3) and a clearing mechanism (4). The clearing mechanism (4) is used for cleaning external windows, the partition plate (2) is mounted in the middle of the tank (1), the adjustable sunshade plate (3) is fixed to the upper side of the partition plate (2), and the clearing mechanism (4) is mounted belowthe partition plate (2) and is connected with the adjustable sunshade plate (3); the adjustable sunshade plate (3) comprises an expansion barrier assembly (31) and a barrier control assembly (32), the expansion barrier assembly (31) is arranged on the partition plate (2), the control assembly is fixed to two sides of the expansion barrier assembly (31), and the clearing mechanism (4) is connectedwith the expansion barrier assembly (31). The multifunctional integrated bay window matching tank has the advantages that energy consumption of the buildings can be reduced to a great extent, accordingly, resources can be saved, and the green and environmental protection performance of the buildings can be improved.

The invention discloses a preparation method for high-blank, high-stability and environmental-protection diffused tin zinc copper powder. The preparation method for the high-blank, high-stability andenvironmental-protection diffused tin zinc copper powder comprises the following steps: (1) selection of raw materials: a certain mass parts of high-purity copper and zinc and such secondary resourcesas copper tin alloy leftovers are selected for future use; and (2) formation of low-looseness-ratio prealloyed powder: high-purity and low-looseness-ratio copper powder and copper tin zinc alloy powder are prepared through adopting a water atomization method; and parameters of the atomization process are adjusted. Through innovation on such aspects as the production process, the formula technology and the equipment development, and the solid-solid diffused tin zinc copper powder preparation technology, the product stability is high; compared with a traditional diffusion process (copper powder, tin powder and zinc powder mixed diffusion), the method is excellent in uniformity, free of segregation and low in production cost (high cost of the tin powder and the zinc powder); and meanwhile, the method greatly improves the production capacity and the production efficiency, and greatly reduces the equipment investment and the energy consumption.