Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

1419results about How to "Highly corrosive" patented technology

Low-temperature smoke denitration SCR (silicon controlled rectifier) catalyst and preparation method

The invention relates to a low-temperature smoke denitration SCR (silicon controlled rectifier) catalyst, which comprises a carrier, a manganese oxide, and composite oxide of one or more of Ce, Zr, Ti, Co, Fe and Cu, the mass content of manganese is 0.1-66 percent, and the total mass content of the Ce, Zr, Ti, Co, Fe or / and Cu is 0-50 percent; and glass fiber and / or kieselguhr is used as the carrier, wherein the glass fiber of the carrier is calcined for 2-4 hours at temperature of 400-600 DEG C, then placed in a nitric acid, sulfuric acid or hydrochloric acid solution with mass concentration of 5-40 percent for acidizing for 1-8 hours, washed by distilled water to be neutered, dried at temperature of 80-120 DEG C, and crushed to have the fineness of 20-325 meshes. The catalyst uses the glass fiber and the kieselguhr as the carriers, so that the dispersion effect of nanoparticles and specific surface area of the catalyst are increased, the high adsorptive capacity and strong heat resistance and corrosion resistance capacity are achieved, stronger toxic resistance capacity to sulfur dioxide and stream contained in the smoke is realized, the invention can be used for 10-200 DEG C of low temperature smoke denitration, and has strong water resisting and sulphur toxic resisting capacities.
Owner:GUODIAN SCI & TECH RES INST +1

Explosion-proof energy-absorbing polyurea elastic coating and preparation method thereof

The invention discloses an explosion-proof energy-absorbing polyurea elastic coating and a preparation method thereof. The explosion-proof energy-absorbing polyurea elastic coating comprises an ingredient A and an ingredient B. The ingredient A comprises, by weight, 40-80 parts of isocyanate, 15-35 parts of polyether polyol, 0-10 parts of a chain extender and 5-15 parts of a diluent. The ingredient B comprises, by weight, 40-80 parts of amine-terminated polyether, 20-40 parts of an amine chain extender, 0-10 parts of a filler and 0-10 parts of an auxiliary agent. The invention discloses the preparation method of the explosion-proof energy-absorbing polyurea elastic coating. A coating layer obtained by spray-coating of the explosion-proof energy-absorbing polyurea elastic coating has ultrahigh strength and good flexibility, can effectively resist explosive shock wave and fragments and is especially suitable for being used as a weapon equipment composite armour and a protective coating of military facility.
Owner:SHANGHAI ORIENTAL YUHONG WATERPROOF TECH

Austenitic-ferritic stainless steel with excellent formability

An austenitic-ferritic stainless steel having a low Ni content and a high N content is provided. A stainless steel which contains, in mass %, 0.2 % or less of C, 4 % or less of Si, 12 % or less of Mn, 0.1 % or less of P, 0.03 % or less of S, 15 to 35 % of Cr, 3 % or less of Ni, and 0.05 to 0.6 % of N, and is mainly composed of an austenite phase and a ferrite phase, wherein the proportion of said austenite phase is 10 to 85 volume %. The above austenitic-ferritic stainless steel exhibits good formability and high punch stretch formability, and is excellent in the resistance to crevice corrosion, to the corrosion of a welded zone and to intergranular corrosion. The above austenitic-ferritic stainless steel wherein the austenite phase contains C and N in a total amount of 0.16 to 2 mass % exhibits further improved formability.
Owner:JFE STEEL CORP

Room-temperature-curable aqueous anticorrosion primer used for coating external surface of construction crane and preparation method of primer

ActiveCN103436136AIntensity rises fastShort construction intervalAnti-corrosive paintsPolyurea/polyurethane coatingsAntifoam agentCorrosion resistant
The invention discloses a room-temperature-curable aqueous anticorrosion primer used for coating the external surface of a construction crane. The primer comprises the following components by weight: 35-45% of an aqueous resin, 5-8% of a curing agent, 1-3% of a dispersant, 5-12% of an antirust pigment, 20-35% of a pigment filling material, 1-2% of an anti-settling agent, 0.5-1% of a wetting agent, 0.5-1% of a thixotropic agent, 0.5-1% of an antifoaming agent, 0.1-0.8% of a flash etching inhibitor, 0.1-0.8% of a mildew inhibitor, 1-3% of a film-forming auxiliary agent and 10-20% of deionized water. The invention also discloses a preparation method of the aqueous anticorrosion primer. The aqueous anticorrosion primer has a room-temperature-curable paint film, is energy-saving and environment friendly, and can satisfy safe production requirements of enterprises; the primer is high in solidity, low in viscosity, convenient for construction; and the coating of the primer has good corrosion resistance and water proofness, and the comprehensive properties of the coating reach performance indexes of same-type oiliness products.
Owner:GUANGZHOU KINTE IND +1

Adjustable and controllable ultrathin two-dimensional nano g-C3N4 film, and preparation method and application thereof

The invention belongs to the technical field of separating film materials, and discloses an adjustable and controllable ultrathin two-dimensional nano g-C3N4 film, and a preparation method and application thereof. The preparation method comprises the following steps of performing heat treatment on dicyandiamide or cyanurtriamide under an inert atmosphere to obtain caked g-C3N4; pulverizing the caked g-C3N4 and calcining under an air atmosphere to obtain g-C3N4 powder; dispersing the g-C3N4 powder in solvent to obtain g-C3N4 two-dimensional nanosheet solution; adding electrolyte solution for modifying; depositing a g-C3N4 two-dimensional nanosheet on a porous carrier of which the pore diameter is greater than 200 nanometers to form a two-dimensional g-C3N4 ultrathin film; and drying to remove the solvent so as to obtain the adjustable and controllable ultrathin two-dimensional nano g-C3N4 film loaded on the porous carrier. The g-C3N4 film is high in water permeability and high in separation efficiency, and has a wide application prospect.
Owner:SOUTH CHINA UNIV OF TECH

Method for preparing novel aluminum-based composite lead dioxide-manganese dioxide anode for zinc electrodeposition

The invention discloses a method for preparing a novel aluminum-based composite lead dioxide-manganese dioxide anode for zinc electrodeposition, which is characterized by sequentially plating conductive coating, an alpha-PbO2-CeO2-TiO2 layer and a beta-PbO2-MnO2-WC-ZrO2 layer outside an aluminum matrix of a composite lead dioxide-manganese dioxide anode from inside to outside. The method comprises the following steps of: carrying out quenching, oil removal and sand blasting processing on the aluminum matrix; spraying the conductive coating on a matrix material; then carrying out alkaline composite plating on the alpha-PbO2-CeO2-TiO2 layer and carrying out acidic composite plating on the beta-PbO2-MnO2-WC-ZrO2 layer to obtain the composite lead dioxide-manganese dioxide anode. The aluminum-based composite lead dioxide-manganese dioxide anode manufactured by the process and method of the invention can obviously reduce the voltage of an electrode bath and energy consumption; and meanwhile, a plating layer and a matrix have strong binding force and small internal stress, and the service life of an electrode is long.
Owner:KUNMING UNIV OF SCI & TECH

Copper base material cleaning agent and preparation method thereof

InactiveCN103469236AReduce degassingReduce foamingOrganic acidAntioxidant
The invention provides a copper base material cleaning agent. The copper base material cleaning agent is composed of, by weight, 0.05%-2% of organic acid activators, 0.05%-1% of a nonionic surface activator, 0.01%-0.6% of an anion surface activator, 0.005%-0.2% of an antioxidant, 0.005%-0.2% of a chelating agent, and the balance deionized water. In addition, the invention discloses a preparation method of the copper base material cleaning agent. The copper base material cleaning agent is free of attenuation and controlling over the attenuation, can be directly used, does not contain heavy metal, is free of residues and can meet the processing requirements for copper before hot dipping; the surface of a copper base material processed by the cleaning agent is pure and is free of dark spots, oil contaminations, fingerprints and the like; accessories obtained after tinplating are free of exposed copper, dark spots and other defects, and the surfaces of the accessories are smooth.
Owner:THE NORTHWEST MACHINE

Coating spraying device for parts of agricultural machinery

The invention relates to a spraying device, in particular to a paint spraying device for parts and components of agricultural machinery. The technical problem to be solved by the present invention is to provide a paint spraying device for parts of agricultural machinery with high efficiency and good spraying effect. In order to solve the above-mentioned technical problems, the present invention provides such a paint spraying device for parts and components of agricultural machinery, including a bracket, etc.; The middle part of the side is connected with a stirring mechanism, the right side of the stirring mechanism is connected with the left wall of the bracket, the upper part of the spraying box is provided with a spraying mechanism, and the left side of the front part of the spraying box is connected with a box door through a hinge connection. The invention designs a paint spraying device for parts of agricultural machinery, which is provided with a stirring mechanism, which can stir the paint more fully, so that the spraying effect of the parts is better, and is provided with a spraying mechanism.
Owner:刘万忠

Method for preparing surface self-grown titanium nitride conducting film modified lithium titanate

The invention relates to a method for preparing a surface self-grown titanium nitride conducting film modified lithium titanate, which comprises the following steps of: uniformly mixing lithium titanate powder with solid nitrogen source in proportion in a dispersion medium in a mode of ultrasound or ball milling, drying the obtained slurry at the temperature of between70 and 120 DEG C, raising temperature to 600 to 900 DEG C in the inert protective atmosphere after grinding, preserving the heat for 10min to 1h, and then cooling together with a furnace to obtain the surface self-grown titanium nitride conducting film modified lithium titanate. Through heat nitrogen reaction, a layer of high-conductive film TiN is self-grown on the surface of the lithium titanate; the TiN film is firmly combined with the lithium titanate; and the prepared high-conductive Li4Ti5O12 / TiN material has high multiplying power of charge-discharge property and excellent circulating property. The preparation method has the advantages of low cost, simple operation and safety, and easy realization of mass production.
Owner:CENT SOUTH UNIV

TiC-WC based alloy products

The invention discloses a TiC-WC base alloy guide roll and spool, valve seat in the metal ceramic and hard alloy manufacturing domain, which comprises the following parts: 30-60 wt percent TiC, 15-55 wt percent WC and 0-3 wt percent Ta as hard phase, 10-30 wt percent Co+Ni as adhesive phase and 0-3.0 wt percent Cr as grain growing inhibitor. The density of product is 0.3-0.5 times as WC base hard alloy density with 2500 N per mm2 anti-bending strength and 87.0-90.5 percent rigidity HRA, which possesses light quality, high rigidity and abrasion-proof property.
Owner:ZIGONG CEMENTED CARBIDE CORP

Device and method for processing municipal utilities foul gas

The invention belongs to a technical field of waste gas treatment, in particular to a device used for treating the malodorous gas of municipal facilities and a method thereof. The device of the invention consists of a filter screen, a plasma reactor, a honeycomb activated carbon bed and a blower which are connected in sequence; wherein the plasma reactor adopts the structure form of a double medium barrier discharge plasma and is formed by the combination of a plurality of plasma reaction tubes; the honeycomb activated carbon bed is an absorption-catalysis oxidative bed and adopts the honeycomb activated carbon as a filling layer. The particles such as the dust in the waste gas are filtered out through the filter screen and enter into the plasma reactor, and a series of reactions occur to the malodorous matter in the bombardment of high energy electrons, and a little un-reacted malodorous matter is further treated through the honeycomb activated carbon bed. The blower which is arranged at the back of the device thus ensures the reaction device in negative pressure conditions so as to avoid the leakage of the malodorous gas. The device and the method provided by the invention have a large processing capacity of the malodorous gas and are high in processing efficiency.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP +1

Method for extracting lithium from salt lake brine

ActiveCN104357676AEasy to operateReduce tributyl phosphate concentrationProcess efficiency improvementHigh concentrationKerosene
The invention provides a method for extracting lithium from salt lake brine. The method comprises the following steps: 1) preparing extract organic phases which comprise a composite extracting agent and a diluent, wherein the composite extracting agent is prepared by mixing tributyl phosphate with N,N-bis(2-ethylhexyl)-3-butanone acetamide according to a volume percent ratio of 50% to 50%; the diluent is sulfonated kerosene; 2) preparing an extract water phase which is an LiCl-MgCl2-H2O system; 3) adding HCl and FeCl3.6H2O to the extract water phase, wherein the ratio of amount of substances of iron and lithium is controlled to be 1.3 to 1, the acid concentration is 0.5mol / L, and the lithium concentration is 1-3g / L; 4) standing after fully mixing the extract water phase obtained in the step 3) with the extract organic phases obtained in the step 1) in a volume ratio of 1 to 2, and then separating a liquid phase. By adopting the method, the problems that the corrosivity of high-concentration tributyl phosphate towards extraction equipment is stronger and the dissolution loss of the extracting agent in water is serious in long-term operation are solved, and the lithium extraction efficiency of the prior art is achieved. The extraction method is simple and reliable to operate.
Owner:QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI

Production method of bamboo chemical dissolving pulp

Aiming at the current situation of the cotton dissolving pulp and the wood dissolving pulp and the characteristics of the bamboo and the defects in the existing preparation of the dissolving pulp, the invention provides a method for preparing a chemical bamboo dissolving pulp. The chemical dissolving pulp produced can be widely applied in the cellulose derivative industries such as spinning viscose fiber, nitrocellulose and acetate fiber. The method comprises the following steps of: material preparation, cooking, screening, scrubbing, bleaching and paper making. The cooking procedure comprises two grades of cooking steps, wherein the primary cooking procedure is continuous cooking and the secondary cooking procedure is continuous cooking or intermittent cooking; and the bleaching procedure is elemental chlorine free bleaching or totally chlorine free bleaching. The invention solves the problems existed in the cooking and bleaching procedures. The chemical bamboo dissolving pulp can be prepared with high efficiency, low energy consumption, low material consumption and low pollution.
Owner:YIBIN GRACE GROUP CO LTD

Housing and method for making same

The invention provides a housing. The housing comprises a metal substrate and a micro-arc oxidation film layer formed on the metal substrate, wherein a region with mirror surface effect is formed on the surface of the micro-arc oxidation film layer; and a groove is etched in the region having the mirror surface effect. A method for making the housing comprises the following steps of: providing the metal substrate; performing micro-arc oxidation treatment on the metal substrate so as to form the micro-arc oxidation film layer thereon; polishing the micro-arc oxidation film layer; and etching the groove on the polished micro-arc oxidation film layer.
Owner:SHENZHEN FUTAIHONG PRECISION IND CO LTD

Organic amine compound absorbent for removal of carbon dioxide in fire coal flue gas

The invention discloses an organic amine compound absorbent for removal of carbon dioxide in fire coal flue gas; the organic amine compound absorbent comprises the following components: by mass, 10%-45% of a main absorbent component, 0-10% of an assistant absorbent component, 0.01%-6% of a corrosion inhibitor, 0.01-3% of an antioxidant, 0-5% of a defoaming agent and the balance of water; wherein the main absorbent component comprises the following components: account for the total mass percentage of the organic amine composite absorbent, 3%-20% of monoethanolamine MEA, 0-12% of 2-amino-2-methyl-1-propanol AMP, 1%-15% of sun of piperazine PZ and N-aminoethyl piperazine AEP and 1%-12% of sum of aminoethyl ethanolamine AEEA and N-methyl monoethanolamine MMEA; and the assistant absorbent comprises one or a plurality of component selected from the group comprising diethanol amine DEA, diethylenetriamine DETA, triethylene tetramine TETA, N-methyldiethanolamine MDEA, sulfolane and tertbutylaminoethoxyethanol TBEE. The organic amine compound absorbent has the advantages of good stability, large absorption capacity, high purification degree, low regeneration energy consumption, good desorption effect, great reduction of degradation loss of the compound absorbent in the process of using, and the like.
Owner:STATE GRID CORP OF CHINA +1

Non-woven lifting dye device for garment production

The invention relates to a dye device, particularly relates to a non-woven lifting dye device for garment production, and aims at solving the technical problem of providing a non-woven lifting dye device for garment production, which is capable of flatly putting non-woven into a dye for dyeing. In order to solve the technical problem, the invention provides the non-woven lifting dye device for garment production. The non-woven lifting dye device for garment production comprises a dye box, a connecting rod, a support rod, a lifting mechanism, a lifting frame, a guide roller and the like, wherein the upper part of the left side outside the dye tank is connected with the connecting rod; the top of the connecting rod is connected with the support rod; the support rod is connected with the lifting mechanism; and the lower side of the lifting mechanism is connected with the lifting frame. Through the lifting mechanism, the targets of driving the lifting frame to descend through the lifting mechanism, driving the guide roller at the inner side to descend through the lifting frame and flatly pressing the non-woven into the dye box for dip dyeing through the guide roller at the inner side are achieved.
Owner:绍兴金祥惠纺织印染有限公司

Metal bipolar plate for proton exchange membrane fuel cell and preparation method thereof

The invention discloses a metal bipolar plate for a proton exchange membrane fuel cell. A modifying layer is arranged on the surface of the metal bipolar plate and comprises a metallic titanium intermediate layer contiguous to a metal substrate and a carbon-based film composite layer on the metallic titanium intermediate layer. The carbon-based film composite layer on the metallic titanium intermediate layer is a carbon-based film composite layer which is formed by mixing carbon, titanium carbide and metallic titanium. The invention has the advantages that a metal bipolar plate matrix is provided with multilayer protection; protective layers can be mutually compensated, so that the bipolar plate has extremely-strong corrosion resistant performance and thereby remarkably prolongs the service life of the bipolar plate; meanwhile, the bipolar plate has excellent conductive performance, can remarkably reduce the internal resistance of the proton exchange membrane fuel cell and improve the output performance of the cell; and the modifying layer has low cost, which is beneficial to reduce the cost of the whole fuel cell system, thereby improving the overall competitiveness.
Owner:SUNRISE POWER CO LTD

Polishing equipment for industrial steel pipe

The invention relates to apolishingequipment, in particular to a polishing equipment for industrial steel pipes, and provides a polishing equipment for industrial steel pipes polishing uniformly, having less harm to people and saving both time and effort. In order to solve the technical problems, the invention provides the polishing equipment for industrial steel pipe. The polishing equipment for industrial steel pipes comprises a base plate, a first support plate, a second support plate, a first sliding rail, a first bearing pedestal, a second bearing pedestal, a positioning device, a steel pipe, a first gear and a first motor. The first support plate is welded at the left side of the base plate. The second support plate is welded at the right side of the base plate. The second support plate is arranged at the right of the first support plate. The polishing equipment for industrial steel pipes achieves the effect of uniform polishing, less harm to people and saving both time and labor during polishing through rotating steel pipes and moving polishing wheels.
Owner:南昌安润科技有限公司

Purification recovery method of Fischer-Tropsch synthesis water

The invention discloses a purification recovery method of Fischer-Tropsch synthesis water, which comprises the following steps: (1) adding inorganic alkali into Fischer-Tropsch synthesis water to carry out acid-alkali neutralization reaction, thereby obtaining Fischer-Tropsch synthesis water containing oxygenated organic substance and carboxylate; (2) delivering the Fischer-Tropsch synthesis water containing oxygenated organic substance and carboxylate into a rectification tower to carry out rectification, and separating to obtain non-acid oxygenated organic substance and Fischer-Tropsch synthesis water containing carboxylate; (3) removing carboxylate in the Fischer-Tropsch synthesis water containing carboxylate to obtain desalted Fischer-Tropsch synthesis water; and (4) carrying out oxygenolysis on the oxygenated organic substance in the desalted Fischer-Tropsch synthesis water to obtain the recoverable Fischer-Tropsch synthesis water. The method can maximally recover the oxygenated organic substance, such as non-acid oxygenated organic substance, in the Fischer-Tropsch synthesis water on the premise of achieving the goal of purifying and recovering Fischer-Tropsch synthesis water; and the purification can be performed according to the fine chemical engineering purity requirement.
Owner:SYNFUELS CHINA TECH CO LTD

Fe-Co alloy/C composite nanofiber microwave absorbent, and preparation method and application thereof

The invention discloses a Fe-Co alloy / C composite nanofiber microwave absorbent. The Fe-Co alloy / C composite nanofiber microwave absorbent comprises Fe-Co alloy nanoparticles and carbon nanofiber, wherein the Fe-Co alloy nanoparticles are distributed in the carbon nanofiber or on the surface of the carbon nanofiber uniformly, and are wrapped by a graphitized carbon layer. The invention also discloses a preparation method of the Fe-Co alloy / C composite nanofiber microwave absorbent. The method combines electrostatic spinning with later-stage heat treatment to prepare the Fe-Co alloy / C composite nanofiber microwave absorbent by a one-step method, is simple in process, low in cost and high in yield, and can continuously prepare a large amount of the target product Fe-Co alloy / C composite nanofiber microwave absorbents. The Fe-Co alloy / C composite nanofiber microwave absorbent prepared by the method is a wave absorbing material with excellent comprehensive performance, has the advantages of light weight, wideband, strong absorption performance, convenient, adjustable electromagnetic parameters and the like, and has an excellent application prospect in the technical fields of electromagnetic stealth, electromagnetic shielding, resistance to electromagnetism radiation interference and the like.
Owner:浙江润优新材料科技有限公司

Treatment method of wastewater containing grease

The invention discloses a treatment method of wastewater containing grease. The pH value of the wastewater is adjusted to 7.0-8.5 by adding a pH regulator, a wastewater treatment agent is added and then evenly stirred and mixed, and supernate is recovered after precipitation. The treatment agent can effectively process the wastewater containing grease, and is low in cost and good in effect, and pollution to an ecological environment caused by the wastewater containing grease is relieved. The grease content of the wastewater after being processed by the method disclosed by the invention can be up to below 12mg / L.
Owner:瀚蓝工程技术有限公司

Electrolytic bath for aluminium electrolysis and electrolysis technology using same

An electrolysis tank used for aluminum electrolysis, comprising a tank body, an anode and a cathode arranged within the tank body, also an electrolyte accommodated within the tank body, where at least a part of the anode is submerged in the electrolyte. The anode is arranged above the tank body. The cathode is arranged at the tank bottom and is covered by a certain amount of liquid aluminum. The electrolyte is provided between the anode and the cathode. The electrolyte covers the liquid aluminum. The tank body has arranged on an inner sidewall thereof an insulation layer for use in separating oxygen or the electrolyte from a carbon block. The tank is characterized in that: the constituents of the anode comprise Fe, Cu, Ni, and Sn, where Fe and Cu are the main constituents; the electrolyte consists of 30 to 38 wt% of NaF, 49 to 60 wt% of AlF3, 1 to 5 wt% of LiF, 1 to 6 wt% of KF, and 3 to 6 wt% of Al2O3, where the molar ratio of NaF to AlF3 is between 1.0 and 1.52. The electrolysis tank is applicable in industrialized production of electrolyzed aluminum.
Owner:INNER MONGOLIA UNITED IND

Highly efficient plugging material

The invention discloses a highly efficient plugging material, which adopts the following components by weight percent: 86-92% of sulphate aluminum cement clinkers, 4-8% of anhydrite, 3-6% of lime stones, 0.02-0.05% of plasticizing agent, 0.06-0.15% of hardening accelerator and 0.12-0.15% of short and thin polypropylene fiber. The highly efficient lost circulation material has the characteristics of fast solidification, high hour strength, strong adhering capability, high anti-seepage grade, lower cost, convenient construction operation, safety and environment protection.
Owner:YONGZHOU ZHONGDA SPECIAL CEMENT

Graphite powder multi-stage grinding equipment for novel power battery production

The invention relates to a grinding device, in particular to a graphite powder multistage grinding device for new energy battery production. The technical problem to be solved by the present invention is to provide a graphite powder multistage grinding equipment for new energy battery production that can fully crush graphite and automatically add graphite for grinding. In order to solve the above technical problems, the present invention provides such a graphite powder multi-stage grinding equipment for new energy battery production, including a box, a filter screen, a mounting plate, a motor, a first rotating rod, a connecting rod, a storage box, etc.; The bottom wall of the box is connected with a filter screen, the lower side of the right wall of the box is connected with a mounting plate, the motor is installed on the right side of the top of the mounting plate, the output shaft of the motor is connected with the first rotating rod, and the upper side of the left wall of the box is connected with a connecting rod . The present invention designs a graphite powder multi-stage grinding equipment for new energy battery production. The first rotating rod drives the moving plate to move left and right so that the graphite is intermittently dropped from the storage box into the box.
Owner:叶世平

Low hardness high-performance glass mold and cast-iron flame-spray welding nickel base alloy powder

The invention discloses Ni-base alloy powder to pre-reinforce and repair the surface of low-hardness high-performance glass mould, which comprises: 0.01~0.2% C, 1.0~3.0% P, 1.5~6.0% Cr, 1.0~3.0% Si, 0.1~1.2% B, and Ni. Wherein, using atomization to prepare alloy; applying powder flame-spraying welding technique to spray the powder on said surface to make it have strong abrasion resistance, heatproof and corrosion resistance.
Owner:江门市威霖贸易有限公司

New technological process of synthesizing acetyl bromide, acetic acid, acetate from methane

The invention discloses a novel process for preparing acetyl bromide, acetic acid and acetic ester from methane, which consists of reacting methane, oxygen and aqueous solution of HBr to obtain CH3Br and CO through catalytic reaction, then subjecting CH3Br and CO to carbonation reaction so as to prepare acetyl bromide in organic medium containing catalyst, then directly hydrolyzing the acetyl bromide and a certain amount of water into acetic acid, and reacting acetyl bromide and alcohols to obtain the acetic esters of the corresponding alcohols. The HBr can be regenerated as circular reaction medium and used again for the reaction for preparing CH3Br and CO from methane. The organic medium of the carbonylation reaction contains catalyst such as rhodium (Rh) compound, hydriodate and / or organo-phosphorus ligand, and a certain proportion of solvents.
Owner:MICROVAST POWER SYST CO LTD

High-energy welded high-toughness steel for resisting corrosion of molten zinc and its preparing process

A high-toughness steel welded with high linear energy (More than 50 KJ / cm) and resisting molten zinc corrosion is prepared through converter smelting at 1250-1320 deg.C, vacuum treating, and rolling at 1000-1180 deg.c or lower than 950 deg.C and cumulative drafts rate is greater than or aqual to 50%. It features that composite Ti oxide is used to resist high linear energy, the Nb, V, etc. and used for raising strength, and the Cu, Ni, B and RE are used to resist molten zinc corrosion. Its advantages are simple technology with high efficiency, low cost, and high performance of finished steel.
Owner:武钢集团有限公司

Chemical plating liquid of high-phosphor chemical plating Ni-P alloy for use on 304 stainless steel surface

The invention relates to a chemical plating solution for high-phosphor chemo-plating Ni-P alloy on the surface of stainless steel 304, belonging to the technical field of process formula of plating solution for chemo-nickeling stainless steel surface, comprising the following materials of: nickel sulfate 25-30g / l, sodium hypophosphite 25-30g / l, lactic acid 15-30g / l, citric acid 4-10g / l, disodium EDTA 4-15g / l, glycin 5-15g / l, hydro-acetic acid 5-18g / l, stabilizing agent KIO3 0.01-0.04g / l, sodium acetate 10-20g / l, and succinic acid 12-20g / l. And the high phosphor coating plated by the chemo-plating solution has excellent acid, alkali and salt corrosion resistance, and especially Cl- corrosion resistance better than the main body of stainless steel 304; in the mechanical performance aspect, improves Cl- corrosion resistance and wearability of stainless steel and has a hardness of 450-550Hv.
Owner:CHINA NATIONAL HEAVY DUTY TRUCK GROUP

Environmental protection and deodorization equipment for household garbage transfer station

The invention belongs to the field of household garbage pre-treatment, and particularly relates to environmental protection and deodorization equipment for a household garbage transfer station. The environmental protection and deodorization equipment for the household garbage transfer station can purify odor, facilitate garbage disposal, and prevent microorganism from breeding, and comprises a base, a fixed plate, a top plate, rotating shafts, fixed links, a garbage can, a lifting device, a gas-collecting hood, an odor treatment device, an exhaust fan, and the like; and the fixed plate is arranged on the left side of the top of the base, a square groove is formed in the middle portion of the fixed plate, the fixed links are arranged on the front side and the back side of the middle portion of the right wall of the fixed plate correspondingly, and the rotating shafts are arranged on the middle portions of the two fixed links correspondingly. The environmental protection and deodorization equipment for the household garbage transfer station achieves the effects of purifying the odor, facilitating garbage disposal, and preventing the microorganism from breeding, and is novel in structure, environment-friendly, and beneficial to the construction of urban and rural garbage transfer stations.
Owner:江西太赫兹环保科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products