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1408results about How to "Eliminate hazards" patented technology

System for managing inventory of bulk liquids

A system for managing bulk liquids for an automated clinical analyzer. The system comprises (a) at least one local reservoir for storing a bulk liquid for impending use, (b) at least one container for holding a bulk liquid before the liquid is transferred to a local reservoir, and (c) a controller for monitoring the level of a bulk liquid in a local reservoir. The local reservoir for storing a bulk liquid for impending use can be a trough. The use of troughs for storing a reagent, a diluent, or some other treating agent for impending use enables an aspirating / dispensing device having a plurality of pipettes to aspirate and dispense the reagent, diluent, or other treating agent at a high rate of throughput. The controller can monitor the level of a liquid in (a) a local reservoir for storing a bulk liquid for imminent use and the level of liquid in a (b) container for holding a bulk liquid before the liquid is transferred to a local reservoir. In the laboratory automation system described herein, the container for holding a bulk liquid before the liquid is transferred to a local reservoir can be a bottle. Other desirable features in the system include, but are not limited to, pump(s), valves, liquid level sensors.
Owner:ABBOTT LAB INC

Outdoors self sufficient uninterruptable luminaire

According to the present invention there is provided an outdoors self sufficient luminaire, weatherproof, characterized in that within the outer body are integrally housed: an array of solid state light emitting individually angle adjustable devices, a device for collecting and converting solar radiation into electrical energy, an electronic circuitry that administers the said generated electrical energy to replenish the power consumed from an accumulator during the absence of the said radiating source, an electronic circuitry that administer and control the levels of power necessary to excite individually the solid state light emitting devices in a programmable fashion, a structural integrated means for attaching the luminaire into a plurality of masts, and means for maintaining the temperature around the array of solid state light emitting devices within a predetermined range.
Owner:ERTZE ENCINAS JUAN ANTONIO +1

Copper alloy with no lead

This invention relates to a Pb-free Cu alloy, especially a Pb-free machinable Cu alloy, which is composed of: Cu 55.0-89%, Zn 3.0-45%, Sn 0.1-10%, Ni 0.1-2.0%, Si 0-5.0%, Bi 0.1-5.0%, Se 0-3.0%, Al 0.01-1.0%, P 0.05-0.15%, and RE 0.01-0.5%. RE, Bi, Se and P are added respectively in the forms of RE-Cu intermediate alloy, Cu-Bi intermediate alloy, Cu-Se intermediate alloy and P-Cu intermediate alloy, or RE, Bi, Se and P are added respectively in the forms of Bi-Se alloy and P-Cu alloy. This invention can eliminate harmful effects on environment and human bodies caused by Pb during production and recovery process. The Cu alloy has good machinability, mechanical properties, processability and fluidity, and has no thermal splitting. The production method is simple, and can produce the Cu alloy by using the present apparatus for producing lead-brass alloy. Besides, the contents of Se, Bi and RE are low,.
Owner:JIANGXI UNIV OF SCI & TECH

Wireless data bus

A wireless device for use with a plurality of wireless nodes that includes a controller node, the wireless device including a wireless transceiver for wirelessly communicating with the plurality of wireless nodes; a processor system; and memory storing a neighbor table, the memory also storing code which when executed on the processor causes the wireless device to initiate a discovery process during which the wireless device discovers neighbor nodes with which the wireless device establishes wireless communication links, identifies the discovered neighbor nodes in the neighbor table, and for each identified neighbor in the neighbor table indicates whether the corresponding link has an active status or a parked status, wherein the wireless device uses links having active status to send communications and does not use links having parked status to send communications.
Owner:SECURAPLANE TECH

Supported catalyzer for low-temperature catalytic combustion of VOCs and method for preparing supported catalyzer for low-temperature catalytic combustion of VOCs

The invention discloses a supported mesoporous carbon catalyzer RTCC-1 for low-temperature catalytic combustion of VOCs and a method for preparing the supported mesoporous carbon catalyzer RTCC-1. Due to the fact that the TSC-1 mesoporous carbon material which has the unique physicochemical property serves as the carrier of the catalyzer, the disadvantages of a traditional catalyzer for catalytic combustion that the active metal load is high and the cost is high are eliminated. The active components of the supported catalyzer, for low-temperature catalytic combustion, prepared with the carrier include one of the precious metal Pd and the precious metal Pt and one or more of copper oxide, cerium oxide, zirconium oxide, silicon oxide and aluminium oxide. The catalyzer has extremely high room-temperature catalytic combustion activity and enables complete catalytic combustion of the VOCs such as formaldehyde, methylbenzene and benzene to be achieved at room temperature or at even lower temperature.
Owner:孙超

System for managing inventories of reagents

A system for managing the inventory of reagents for a laboratory automation system. The system for managing the inventory of reagents comprises a controller, software for the controller, and a refrigerator capable of refrigerating reagents, detecting the presence or absence of reagents in the refrigerator, and detecting the location of reagents in the refrigerator. The system for managing the inventory of reagents is connected to a laboratory automation system. The laboratory automation system comprises at least one clinical analyzer. A typical system for managing inventories of reagents includes an operator interface for the loading of boxes of reagents and other supplies, radio frequency identification system for identification of inventory and tracking, robotic mechanisms for loading containers onto the track system and removing containers from the track system, de-capping equipment, refrigeration equipment, and information technology connections to laboratory analyzers and vendors.
Owner:ABBOTT LAB INC

Demonstration process for recovering waste and old dynamic lithium iron phosphate cell in environmental protection mode

The invention relates to a demonstration process for recovering a waste and old dynamic lithium iron phosphate cell in an environmental protection mode, which belongs to the technical field of recovery of the power lithium iron phosphate cell. The method comprises the following steps: completely discharging the cell, extracting an electrolyte in the cell, adding a certain amount of solvent or displacement liquid, standing for 30 minutes and extracting the inner liquid of the cell, and distilling the extracted electrolyte to obtain the liquid for cycle usage when the electrolyte is displaced. According to the invention, the cell is cut by 1cm at the position along the cell top through a water jet, an electrical core is taken, wherein the steel casing, or aluminium casing or a PP plate can be directly recovered for usage. The anode, the cathode and a diaphragm are separated, and the diaphragm can be directly recovered through cleaning by ethanol. After the anode and the cathode are separated through physical methods such as ultrasound, a copper foil and an aluminium foil can be directly recovered, anode and cathode powder can be reused to be a cell material through high temperature treatment, and the purposes of no waste and no pollution can be reached by recovering the elements through a chemical method.
Owner:BEIJING UNIV OF TECH +1

System for managing inventories of reagents

A system for managing the inventory of reagents for a laboratory automation system. The system for managing the inventory of reagents comprises a controller, software for the controller, and a refrigerator capable of refrigerating reagents, detecting the presence or absence of reagents in the refrigerator, and detecting the location of reagents in the refrigerator. The system for managing the inventory of reagents is connected to a laboratory automation system. The laboratory automation system comprises at least one clinical analyzer. A typical system for managing inventories of reagents includes an operator interface for the loading of boxes of reagents and other supplies, radio frequency identification system for identification of inventory and tracking, robotic mechanisms for loading containers onto the track system and removing containers from the track system, de-capping equipment, refrigeration equipment, and information technology connections to laboratory analyzers and vendors.
Owner:ABBOTT LAB INC

Water-soluble discharging medium compound for electrospark wire-electrode cutting

The invention discloses a water-solubility discharging dielectric combination for electrospark wire electrode cutting, comprising the following components: 20 to 46 percent weight of polyalkyl glycol and / or polyatomic alcohol, 2 to 8 percent weight of alkylol amine, 26 to 40 percent weight of water-solubility anti-rust agent, 2 to 4 percent weight of non-ionic surface active agent, 3 to 6 percent weight of anionic surface active agent, 1 to 2 percent weight of thickening agent solution, 0.2 to 1.0 percent weight of anti-foam agent, 0.01 to 0.04 percent weight of copper alloy corrosion inhibitor, 0.2 to 0.5 percent weight of mildew inhibitor, 0.5 to 1.0 percent weight of water quality stabilizing agent and equilibrium amount of distilled water; moreover, all components are simply mixed to obtain the combination. The combination can be used for a long time with zero emission or little emission; meanwhile, the invention does not cause pollution, toxin and harm to work environment and the nature and is nonirritating to human body.
Owner:BEIJING DONGXING LUBRICANT CO LTD

Bagged material car-loading system and method

The invention relates to a bagged material car-loading system and method. The system comprises a conveying and shaping device, a sensing measuring device, a central control device and an industrial robot, wherein the conveying and shaping device is used for conveying goods to a work zone and adjusting the postures of the goods; the sensing measuring device is installed on the top or one side face of the work zone and used for collecting image data of a freight car located in the work zone; the central control device is used for obtaining the actual position of the freight car through calculation according to the detected image data of the freight car, comparing the actual position with a preset reference position to obtain a deviation value, and calculating the actual stacking path according to the deviation value and a preset stacking path; the industrial robot is used for loading the goods in the work zone into the freight car located in the work zone according to the actual stacking path. The central control device is respectively connected with the conveying and shaping device, the sensing measuring device and the industrial robot through control / data lines. The bagged material car-loading system and method improves operation efficiency, eliminates dust hazards and promotes safety.
Owner:SHENZHEN INST OF ADVANCED TECH

Preparation method for halogen-free flame retardant polyester labeled paper

The invention discloses a preparation method for halogen-free flame retardant polyester labeled paper. The method is characterized in that the method comprises the following steps: adopting butyl acrylate, ethylhexyl acrylate, acrylic acid, hydroxyethyl acrylate, ethyl methacrylate, a phosphorus-containing flame retardant monomer, a solvent, an initiator, and the like as raw materials to prepare a phosphorus-containing flame retardant acrylic acid pre-polymerization resin; preparing a phosphorus-containing flame retardant acrylic acid pressure sensitive adhesive; uniformly coating the phosphorus-containing flame retardant acrylic acid pressure sensitive adhesive on a halogen-free flame retardant polyester thin film; compounding the polyacrylate pressure sensitive adhesive-coated halogen-free flame retardant polyester thin film and a polyester release film; and carrying out ripening to prepare the halogen-free flame retardant polyester label product. With the present invention, the flame retardant and pressure sensitive adhesion property, the appearance and the environmental protection quality of the whole label product can be effectively improved, and the halogen-free flame retardant polyester labeled paper can meet the performance requirement of VTM-0 grade flame retardation.
Owner:SICHUAN DONGFANG INSULATING MATERIAL

Purification system for flue gas generated by burning wastes and purification process thereof

InactiveCN101810992ASimple purification processEfficient purification processCombination devicesFlue gasSewage
The invention discloses a purification system for flue gas generated by burning wastes and a purification process thereof. The purification system comprises a flue of a refuge incinerator, a dust remover, a device for decomposing and removing dioxins, a flue gas washing tower, a fly ash collecting device, a fly ash washing and dehydrating system, a sewage treatment system, a flue gas heating device and a draught fan; one side of an inlet of the dust remover is connected with the flue, and the other side of the inlet of the dust remover is connected with the device for decomposing and removing dioxins; the fly ash collecting device is connected under the dust remover and the fly ash washing and dehydrating system; the device for decomposing and removing dioxins is connected with the lower part of the flue gas washing tower through a pipeline; an outlet of the flue gas washing tower is connected with the flue gas heating device; meanwhile, a water drain of the flue gas heating device is respectively connected with the fly ash washing and dehydrating system and the sewage treatment system; and purified flue gas is exhausted through the draught fan by using the flue gas heating device. The flue gas can meet the stricter exhaust standard by the purification treatment processes of removing dust, decomposing the dioxins, absorbing and neutralizing acid gases, removing heavy metals, deeply removing dust and the like.
Owner:瀚蓝(厦门)固废处理有限公司 +2

Method for preparing film-coated ceramisite proppant by using oil shale wastes

The invention relates to a method for preparing a film-coated ceramisite proppant by using oil shale wastes. The method for preparing the film-coated ceramisite proppant by using the oil shale wastes is characterized by comprising the following steps of: 1) selecting raw materials which comprise the following raw materials in part by mass: 50 parts of the oil shale wastes, 50 parts of bauxite, and 1 to 4 parts of caking agent; 2) uniformly mixing the raw materials to obtain a mixture; 3) putting the mixture into a pan-type pelletizer for pelletizing to obtain raw material balls; 4) sintering the raw material balls to obtain a ceramisite aggregate; and 5) heating the ceramisite aggregate to the temperature of between 100 and 240 DEG C, adding a resin into the heated ceramisite aggregate and stirring the mixture uniformly first to ensure that the resin forms a film on the surface of the ceramisite aggregate, then adding a curing agent and other auxiliary agents, stirring the mixture uniformly, adding a lubricating agent, stirring the mixture uniformly, cooling to obtain a new mixture, crushing the new mixture and screening the crushed mixture through a 20 / 40-mesh sieve to obtain thefilm-coated ceramisite proppant. The method can extensively use the oil shale wastes and can solve the problem that the oil shale wastes harm the environment.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Water-soluble nano camouflage paint and preparation method thereof

The invention discloses water-soluble nano camouflage paint and a preparation method thereof, belonging to the technical field of wave-absorption paint. The water-soluble nano camouflage paint is prepared from the following components in percent by mass: 20%-60% of water-soluble resin, 2%-6% of a silane coupling agent, 24%-40% of wave-absorbing particles, 1.5%-2.0% of a protective agent, 2%-4% of an emulsifier, 4%-6% of an anti-freezing agent, 0.1%-0.5% of a defoaming agent and the balance of deionized water. According to the invention, the water-soluble resin is used as a carrier of components such as a film forming matter and a wave-absorption material and the deionized water is used as a diluent, so that harms of an organic solvent in the camouflage paint on a human body and an environment are completely avoided, and therefore, the water-soluble nano camouflage paint is environment-friendly type paint in true sense.
Owner:BEIJING XINLI MACHINERY

Water washing garbage cleaning production treatment method

The invention relates to a water washing garbage treatment method, wherein a purpose of the invention is to achieve urban garbage resource comprehensive utilization. According to the method, urban garbage is cleaned by using a running water washing manner, processes of dehydration, drying, winnowing, ??fine sorting and the like are performed, and classification centralization comprehensive utilization is performed; the water washing garbage sewage is treated through a sewage purifier to be rapidly recycled; and the production process adopts a cleaning production process, and no secondary pollution is generated. According to the present invention, the integrated design comprises water washing garbage sorting classification, fertilizer production through organic matter fermentation, heat supply through combustible combustion, a biogas engineering technology, a sewage treatment system and a plurality of mature application technologies; the urban garbage is adopted as a new urban mineral resource, and a water washing garbage resource comprehensive utilization workshop is established in a garbage landfill collection field so as to eliminate garbage pollution hazards; and sustainable development of large-scale garbage treatment industry is promoted, high economic benefits, social benefits and environmental benefits are generated, and good benefits are provided for humans.
Owner:唐义龙

Air processor with air heating and purifying functions

The invention discloses an air processor with air heating and purifying functions, which comprises a shell, and a fan and an electric component which are arranged in the shell; the wall of the shell is provided with an air inlet and an air outlet; a passage is arranged in the shell; and the fan is arranged in the passage. The air processor is characterized in that: an air purifying device capableof removing solid particles in the air is arranged in the air inlet of the shell and an air heater is arranged in the air outlet of the shell. The purifying device comprises one or combination of an electrostatic presipitator, a filter, an activated carbon purifier, a photocatalyst sterilizer, an ultraviolet light sterilizing lamp and the like; and the air heater is a PTC ceramic heating element or heating cords, a metal electrical heated tube with radiating fins and the like. The air processor can heat indoor air and purify indoor air, and simultaneously meets requirements of people on air purifying and heating by one device, thereby greatly improving the utilization rate of the device, saving expense of the device, reducing the use cost and saving the occupied space. The air processor brings enormous social and economic benefits after being popularized and applied.
Owner:吴天文

Ultra-thin polyester double-sided adhesive tape, glue thereof, and preparation method thereof

The invention discloses an ultra-thin polyester double-sided adhesive tape comprising a polyester thin film layer and two glue layers formed by glue coated on front and back sides of the polyester thin film. The thickness of the polyester thin film is 0.001-0.0012mm. The thickness of the glue layer is 0.002mm. Therefore, the thickness of the double-sided adhesive tape is only 0.005mm, such that electronic product development trends of thin and light can be satisfied. The total thickness of adhesive is 0.004mm, such that the tape has ultra-low thermal resistance, and heat generated by electrical components can be conducted in time. Therefore, electrical component damage caused by long-term working under high temperature is avoided. Also, the invention discloses a formula for the glue used in the ultra-thin polyester double-sided adhesive tape. The glue comprises the raw materials of, by weight, 100 parts of acrylate prepolymer resin, 0.5-3 parts of a curing agent, and 100-200 parts of ethyl acetate. With the glue, a single side thickness is 0.002mm, and high adhesive performance can be provided.
Owner:四川羽玺新材料股份有限公司

Production process of high-temp resistant bismuth vanadate yellow ceramic pigment

This invention relates to production process of pucherite yellow ceramic pigment, which takes sodium silicate as raw material to coat silicon dioxide. It takes sodium silicate as silicon source, coat silicon dioxide on surface of pucherite. For the strong inertia of silicon dioxide, it be able to withstand 1000 deg high temperature, and keep bright-colored after annealing of 1000 deg. This invention can eliminate harm to human body and pollution to environment in the process of production, solve the problem of heavy metal content are overproof in the export ceramic product of our country.
Owner:SHIJIAZHUANG UNIVERSITY

Aluminium-silicon-copper-magnesium series deforming alloy and its preparing method

The invention discloses an Al-Si-Cu-Mg series distortion aluminum alloy and the manufacturing method. The alloy is made up from 9.0-12.0wt% Si, 3.0-4.0wt% Cu, 0.3-0.6wt% Mg, <0.30% Fe, <0.20% Zn, and other impurity <=0.15wt%, and the rest is Al. The method includes the following steps: smelting and refining the raw materials in reflecting smelter, after processing the allow liquation by Al-Sr intermediate alloy, gaining cast rod through hemicontinuous casting, extruding the cast rod and after forging and T6 thermal treatment to gain the product. The tensile strength of the alloy is over 397MPa, and broken tensile stretch is 6%, and rigidity is 136-141HB. It is mainly used to make wheel for vehicle and motorcycle, piston, bearing, bidirectional sloping cam plate, etc.
Owner:SHANDONG UNIV

Aluminium-silicon-copper-magnesium pack alloy and its preparing process

The invention relates to an aluminium-silicon-copper-magnesium pack alloy and its preparing process, wherein the chemical constituents of the alloy include (by mass percent): silicon 13.0-15.0%, Cu 1.5-3.5%, Mg<=0.3%, Fe<=1.3%, Mn<=0.5%, impurity content <=0.15%, and balancing Al. The raw materials are prepared in a crucible furnace with a smelting temperature of 680-750 deg. C, after the pure aluminium and intermediate alloy are melt, silicon blocks and copper ingots are charged into the aluminium solution, magnesium blocks are charged in at 680-700 deg C, the pouring temperature is 660-720 deg C. The prepared alloy has a cast-state tensile strength of above 264 MPA, and a hardness of around HB95.
Owner:SHANDONG UNIV

Nano-selenium amino acid foliar fertilizer and preparation method of the same

The invention discloses nano-selenium amino acid foliar fertilizer and preparation method of the same. The nano-selenium amino acid foliar fertilizer contains the following components by weight: 15-20 parts of amino acid, 1-5 parts of nano-selenium, 1-2.5 parts of biodegradable surfactant and 6-12 parts of trace elements. The preparation method of the nano-selenium amino acid foliar fertilizer includes the steps as follows: fully mixing compound amino acid solution with reducing agent solution, adding selenium compound aqueous solution and standing for 1-3d after stirring the mixture to uniform, thus preparing nano-selenium solution; and then adding the compound amino acid solution, the biodegradable surfactant and the trace elements. In the invention, multiple defects of the prior art are overcome, the advantages of moderate reaction conditions, low material cost, as well as easy absorption and inversion by crops and low toxicity to biology and environment of products are realized, and long-period large-area application is available.
Owner:魏立新 +2

Low-alloy high-strength steel with yttrium-based rare earth and manufacturing method thereof

The invention discloses low-alloy high-strength steel with yttrium-based rare earth. The low-alloy high-strength steel with the yttrium-based rare earth comprises the following chemical ingredients in percentage by mass: 0.08-0.19% of C, 0.15-0.55% of Si, 1.20-1.70% of Mn, not greater than 0.040% of P, not greater than 0.040% of S, not greater than 0.040% of Nb, not greater than 0.18% of V, not greater than 0.020% of Ti, not greater than 0.40% of Ni, not greater than 0.30% of Cr, not greater than 0.30% of Cu, not greater than 0.08% of Mo, not greater than 0.050% of Alt, not greater than 0.012% of N, 0.002-0.003% of O, and balance iron Fe, rare earth and inevitable impurities, wherein the rare earth is the yttrium-based rare earth; the steel comprises the following dissolved solid matters: 0.004-0.010% of Y, and 0.014-0.025% of Ce, and the residues exist in the form of combining Y and Ce with O, Mg, Al and S in the steel to form small dispersed compound inclusions; the compound inclusion component contains, in percentage by mass, 25.40-70.10% of Y, and 3.25-19.15% of Ce; and a matrix structure of the steel is a fine ferrite and perlite structure. The low-alloy high-strength steel disclosed by the invention is improved by utilizing the yttrium-based rare earth for exerting the effects of purification, modification, microalloying and oxide metallurgy in the steel.
Owner:JIANGXI UNIV OF SCI & TECH +1

Sewage treatment and regeneration cyclic utilization device and sewage treatment and regeneration cyclic utilization method

The invention relates to a sewage treatment and regeneration cyclic utilization device, which is provided with a biochemical system, an electrolysis system, a membrane biological reactor (MBR) system and a deep processing system. A sewage treatment and regeneration cyclic utilization method comprises the following steps of (1) biochemical treatment; (2) electrolysis; (3) MBR system filtering; (4) capacitance desalting and sterilization; and (5) sludge treatment. The device and the method can overcome the defects that in the existing sewage regeneration technology, the quality of the regeneration water is poor, the water consumption water quality requirements are difficult to meet, the investment is high, the operation cost is high, the secondary pollution is caused on the environment, and the like. The sewage discharge can be reduced, the utilization efficiency of the water is improved, meanwhile, the regeneration and the reutilization on the sludge are realized, and the harm possibly caused by the sludge to the environment is eliminated.
Owner:BOYING XIAMEN SCI & TECH

Equipment support platform

An earth anchored equipment support platform for supporting equipment at a desired elevation above the ground surface where the earth anchor is enclosed and concealed by the equipment support platform includes a top, a bottom and a sidewall joined with and formed along the perimeter of the top. An earth anchor receiving space is enclosed by the sidewall. A sight passage extends through the sidewall and into the earth anchor receiving space, wherein the earth anchor receiving space is viewable from an exterior position of the sidewall though the sight passage. Two or more equipment support platforms can be stacked, one on top of each other, in a partially nested arrangement to increase equipment elevation.
Owner:MESA MODULAR SYST

Back field aluminum paste composition of solar battery and preparation method thereof

The invention relates to a back field aluminum paste composition of a solar battery, wherein the back field aluminum paste composition of the solar battery comprises the following components in percentage by weight: 70-76 percent of aluminum powder, 1-3 percent of glass binder phase and 20-30 percent of organic carrier, wherein the aluminum powder is formed by mixing fine aluminum powder with grain diameter of 3-5mum and coarse aluminum powder with grain diameter of 6-8mum in a predetermined mass ratio, and the grain diameter ratio of the fine aluminum powder to the coarse aluminum powder is greater than 0.414. In the back field aluminum paste composition of the solar battery and the preparation method thereof provided by the technical scheme of the invention, by reasonably designing the grain diameter ratio of the fine aluminum powder to the coarse aluminum powder, the stress generated in process of sintering is minimum, therefore, the purpose of reducing warping is realized.
Owner:CHANGZHOU YINGDE ENERGY TECH

Rare earth manganese brass alloy and producing process thereof

The invention relates to a rare earth brass alloy with environment protection and easy cutting, which achieves the purpose of improving the easy cutting of the alloy by adding Bi and Mn to replace the lead in Pb brass. The alloy has the components of 55.0-65wt percent of Cu, 0.1-2.5wt percent of Bi, 0.1-1.0wt percent of Mn, 0-3.0wt percent of Sn, 0-1.0wt percent of Ni, 0.1-1.0wt percent of Al, 0.01-0.05wt percent of one or two of Ce and La, the rest of Zn and other inevitable impurities, wherein Bi, Si, Ce, La and Ce+La are added respectively in the form of master alloys of Cu-Bi, Cu-Si, Cu-Ce, Cu-La and Cu-Ce-La. The alloy has the advantages of favorable cutting performance, cold and hot working performances and cast performance, little thermal fragment trend, simple production process of supporting preparation in the existing Pb brass production equipment, low alloy cost, good polishing performance and welding performance, etc.
Owner:XIAMEN LOTA INT CO LTD

Steel slag treating method

The invention provides a steel slag treating method comprising the following steps of: directly mixing thermal-state revolving furnace steel slag with blast furnace slag in an arc furnace in proportion, adjusting the molten slag in the furnace into a proper temperature by virtue of the arcing of the arc furnace, and stirring the molten slag by virtue of arc disturbance, so that acidic oxide and basic oxide in the molten slag are sufficiently reacted with each other; reacting free calcium oxide and free magnesium oxide in the raw steel slag with silicon dioxide component and low-calcium calcium silicate in the blast furnace slag to generate safe calcium silicate and magnesium silicate, quenching the molten slag to form glass-state solid slag which is higher in hydration reactivity and free of short-term or long-term inflation harm, and further finely grinding the solid slag into slag powder which can be safely used for related building material as the blast furnace slag. According to the method, the damage caused by the free calcium oxide and free magnesium oxide in the steel slag can be removed, and a basis is provided for the whole use of the steel slag. The heat energy of the thermal-state molten slag can be sufficiently used, so that the energy source can be saved, the energy consumption can be reduced, the cost can be reduced, and the discharge of CO2 can be reduced, and the method is extremely high in social meaning and economic meaning.
Owner:北京联合荣大工程材料股份有限公司
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