472 results about "Copper" patented technology

The invention discloses a high-strength silver-free copper-based brazing filler metal which is composed of P, Sn, Ni and Cu. The high-strength silver-free copper-based brazing filler metal is low in cost, safe, environmentally friendly and good in welding effect; through the adding of Sn and Ni, the melting point of brazing filler metal alloy is reduced, and the tensile strength and wettability of the brazing filler metal alloy are enhanced.

The invention relates to a bactericidal composition containing fluxapyroxad and thiediazole copper. The bacterial composition is compounded from fluxapyroxad and thiediazole copper in a binary mode, wherein a mass ratio of fluxapyroxad to thiediazole copper is (1-50) to (50-1); a mass fraction of fluxapyroxad and thiediazole in the preparation is 1%-80%, and the rest of the preparation is auxiliary components which are allowed to use and are acceptable in a pesticide. A dosage form of the bactericidal composition is missible oil, a suspending agent, wettable powder, a water dispersible granule, emulsion in water, microemulsion, a granule and a micro-capsule. The bactericidal composition is mainly used for controlling plant gray mold, peronospora and phytophthora germs.

The application discloses an alloy vacuum self-consumption electric arc smelting magnetic pulse grain refining device, which comprises a vacuum self-consumption electric arc furnace body and a copper crucible, a metal molten pool is arranged in the copper crucible, a plurality of non-contact magnetic pulse coils are wound on the outer wall of the copper crucibble, and a water-cooling interlayer is arranged between the vacuum self-consumption electric arc furnace body and the copper crucible; a screw rod is arranged between the vacuum self-consumption electric arc furnace body and the copper crucible, and the screw rod is connected with a motor. The application further discloses a method for alloy vacuum self-consumption electric arc smelting magnetic pulse grain refining, cooling water is introduced into the water-cooling interlayer, a power supply of the vacuum self-consumption electric arc furnace is turned on for smelting, a pulse power supply is turned on when the height of the metal molten pool formed at the bottom of the copper crucible reaches 50 mm, and the plurality of non-contact magnetic pulse coils are uniformly moved upwards until the process is finished. The metal molten pool is directionally treated by electromagnetic pulse in a moving mode, the columnar crystal-equiaxed crystal transition is realized in the alloy ingot preparation process, the grain is refined, and segregation is reduced, so that the overall organization of the large-size long ingot is refined.

A latent heat storage includes a ceramic part, formed of a polycrystalline material, and including a closed space famed therein, and a metal part provided inside the closed space, and including copper.

The application relates to a nickel-zinc-copper ferrite and a preparation method and application thereof, the nickel-zinc-copper ferrite comprising main components and auxiliary components; the main components comprise Fe2O3 64-66.7 mol%, NiO 9-12 mol%, ZnO 13.5-19 mol% and CuO 3-9.5 mol% with the total mole percentage being 100 mol%; the auxiliary components comprise Bi2O3 0.3-1.5 wt%, Co2O3 0.1-0.6 wt%, CaCO3 0.03-0.08 wt% and ZrO2 less than or equal to 0.1 wt% with the total mass percentage of the main components being taken as a standard. The content of Fe2O3, ZnO, NiO and CuO is controlled, the content of the auxiliary components is matched and adjusted, the prepared nickel-zinc-copper ferrite has high saturation magnetic induction intensity, high magnetic permeability, high Curie temperature, low residual magnetic induction intensity and low specific temperature coefficient, and can be better applied to power inductance or common-mode inductance.

The invention relates to a device and method for detecting the liquid level height of melt in a copper pyrometallurgy slag ladle, and belongs to the technical field of metallurgy, the device comprises a plurality of infrared cameras in one-to-one correspondence with tank bodies, and further comprises an infrared control box and an upper computer, and the upper computer is externally connected with a dust removal system; the infrared cameras are arranged above the tank bodies and used for collecting infrared images of the tank bodies, all the infrared cameras are electrically connected with the infrared control box, the infrared control box is electrically connected with the upper computer, and the upper computer is electrically connected with a plurality of sound-light alarm devices which are in one-to-one correspondence with the tank bodies and used for alarming the liquid level heights in the tank bodies. The front end of the tank body is provided with an anti-shielding detection device used for detecting whether a transport vehicle passes by or not, and when the anti-shielding detection device detects that the transport vehicle passes by, the upper computer controls the dust removal system to be started. According to the invention, cinder ladle discharge monitoring can be realized, the safety risk of equipment and personnel is reduced, and the cinder ladle alternation efficiency is improved.

This invention relates to the field of iron and steel smelting technology, and specifically provides a rare earth non-magnetic corrosion-resistant steel bar and its manufacturing method. The chemical composition of the rare earth non-magnetic corrosion-resistant steel bar includes: carbon (C) ≤0.20-0.55%, silicon (Si): 0.40%-0.60%, manganese (Mn): 18%-25%, phosphorus (P) ≤0.035%, sulfur (S) ≤0.020%, chromium (Cr): 3%-6%, copper (Cu): 0.10%-0.20%, rare earth elements (La+Ce): 0.013%-0.018%, with the balance being... The production process of rare earth corrosion-resistant steel bars, which contains iron (Fe) and unavoidable impurities, includes: converter steelmaking → LF refining → billet continuous casting. This invention significantly improves the corrosion resistance of steel bars by designing the composition of rare earth corrosion-resistant steel bars, optimizing the refining process, and adding continuous casting wire feeding process. This meets the modern building's demand for high quality and green environmental protection. The enhanced corrosion resistance not only improves the safety of building structures but also extends their service life. In addition, the addition of rare earth elements helps promote the rational development of my country's rare earth resources and drives the steel industry towards green and low-carbon development.

The present application relates to the technical field of metallurgical equipment operation control, and particularly relates to a rough copper sluice heat preservation and operation control method based on bonding-melting balance, comprising the following steps: establishing a bonding strength-melting rate-temperature-preservation parameter correlation model, and determining a critical temperature interval when bonding and melting are balanced; according to the balance model and real-time production data, the temperature of the inner wall of the sluice is monitored in real time through a temperature sensor, when the temperature is lower than the critical temperature interval, the electric heat tracing device is started to supplement heat, when the temperature is higher than the critical temperature interval, the opening degree of the heat preservation cover plate is adjusted; before the rough copper is discharged, the heat preservation system is started in advance, and the sluice is preheated to the lower limit of the critical temperature interval; during the discharge process, the rough copper flow rate is controlled; after the discharge is completed, the heat preservation system is kept running. Through the whole-process management and control of preheating, operation process regulation and control and subsequent heat preservation, the dynamic balance of bonding and melting of the rough copper on the inner wall of the sluice is realized.

The application discloses an alloy vacuum separation furnace, which comprises a runner, a separation chamber and a mold system; the separation chamber comprises an isolation box, and an upper molten pool, an inclined part and a lower molten pool are arranged in the isolation box from top to bottom. The number of the inclined part is more than one, and the inclined part has an inclined surface. Alloy melt to be separated is poured into the upper molten pool through the runner; the upper molten pool and the lower molten pool are provided with plug parts; the melt in the upper molten pool can flow into the inclined part downstream of the upper molten pool by opening the plug part of the upper molten pool, and then flow into the lower molten pool through the inclined part. The mold system comprises a preparation chamber, a second isolation valve, a pouring chamber, a third isolation valve and a discharge chamber which are sequentially connected, and the pouring chamber is connected with the separation chamber. The melt in the lower molten pool can be quantitatively poured into a mold in the pouring chamber. The alloy vacuum separation furnace is continuously worked through the inclined part, the production efficiency is improved, and the alloy vacuum separation furnace is suitable for large-batch continuous production. The application further discloses an alloy separation method implemented by using the alloy vacuum separation furnace and a copper and zinc material.

The utility model provides a rolling and flattening device for copper sheet manufacturing and machining, which belongs to the field of metal sheet machining and comprises a workbench, an adjusting component and a cleaning component. A mounting frame is fixedly mounted on the surface of the workbench, and a plurality of lower roll shafts are rotationally mounted at the bottom of the inner side of the mounting frame; the utility model discloses. A mounting groove is formed in the surface of a mounting frame, a lifting block is slidably mounted in the mounting groove, an adjusting screw is rotatably mounted at the top of the mounting frame, when a rocking wheel is rocked, the adjusting screw is driven to rotate so as to drive the lifting block to ascend and descend in the mounting groove, the lifting block ascends and descends to drive an upper roller shaft to move relative to a lower roller shaft, and therefore the distance between the roller shafts is adjusted; the copper sheets with different thicknesses and sizes are flattened and rolled, the air supply branch pipes are connected with the compression air collection bag through the air proportional valves in the mounting box, air flow is driven by the air blowing nozzles to be quickly blown to the surfaces of the copper sheets, so that particle impurities on the surfaces of the copper sheets are cleaned, and the copper sheets are prevented from being scratched by the particle impurities during rolling.

The utility model belongs to the inductance technical field discloses a kind of electrode sheet for copper iron co-fired inductance, including positioning frame and multiple electrode sheet main parts, positioning frame includes main part and multiple branch parts, branch part is integrally formed piece with main part;Electrode sheet main part is set one-to-one with branch part, electrode sheet main part is U-shaped, the both ends of U-shaped electrode sheet main part are connected with the end of corresponding branch part away from main part, and branch part is provided with pre-break slot at the connecting place with electrode sheet main part.Through the positioning frame, avoid the problem of single electrode sheet deviation, improve the feeding efficiency and pressing efficiency of the magnetic core, while reducing the cost of equipment layout and production cost.

The present invention provides line pipe steel comprising, by wt%, 0.04-0.07% of carbon (C), 0.20-0.30% of silicon (Si), 1.2-1.35% of manganese (Mn), 0.02-0.05% of aluminum (Al), 0.10% or less (excluding 0%) of copper (Cu), 0.15-0.25% of chromium (Cr), 0.02-0.08% of molybdenum (Mo), 0.15-0.25% of nickel (Ni), 0.04-0.05% of niobium (Nb), 0.01-0.018% of titanium (Ti), 0.025%-0.035% of vanadium (V), 0.01% or less (excluding 0%) of phosphorus (P), 0.001% or less (excluding 0%) of sulfur (S), 0.0005% or less (excluding 0%) of boron (B), and the balance of iron (Fe) and inevitable impurities, wherein the relative notch tensile strength (RNTS) according to ASTM G142 is 0.86 or greater.

The utility model discloses a kind of recessed red copper material pieces for integrated inductance, comprising: material piece body, interval groove is symmetrically opened in material piece body inside upper and lower two sides, interval groove is distributed on material piece body at equal intervals, first limit piece is set between the adjacent interval grooves on material piece body upper part, second limit piece is set between the adjacent interval grooves on material piece body lower part, first recess is opened in first limit piece middle part, second recess is opened in second limit piece middle part, L-shaped limit mouth is set in corner between first limit piece and second limit piece, the utility model has following advantages: the utility model is to material piece body inside upper and lower two sides symmetric interval groove, and then make material piece body and first limit piece and second limit piece integrated molding, first limit piece and second limit piece are separated and correspond, by the recess groove type structure of first recess and second recess, coil first pin and coil second pin can be more stably spot-welding connection wire.

The application discloses a kind of waste copper pyrogenic regeneration intensive smelting device, including support, and for being arranged on the smelting furnace of support, copper water separation component, copper water shaping component, scraping component and lifting driver, copper water separation component and copper water shaping component are used to be sequentially arranged under smelting furnace, so that the copper water smelted by smelting furnace is separated by copper water separation component and then transmitted into each cavity of copper water shaping component to be shaped, scraping component includes multiple scrapers, transmission support rod for being connected with multiple scrapers, and guide support rod arranged on support, part of transmission support rod is slidably connected with guide support rod, wherein, lifting driver is used to drive copper water shaping component, scraper and transmission support rod to carry out synchronous lifting movement, by the setting, before copper water shaping, complete the separation process of dross, solve the removal mode of dross in the prior art, there is the technical problem of low efficiency and causing the risk of casualties of operating personnel.

The embodiment of the present application relates to a kind of copper intermetallic compound porous materials and its preparation method and application, wherein, preparation method includes: metal Mg, Zn, Cu, M is mixed, is handled by induction smelting, and MgZnCuM alloy ingot is obtained;MgZnCuM alloy ingot is treated by spinning, and MgZnCuM precursor is obtained;MgZnCuM precursor is placed in gas phase de-alloying system and is treated by first vacuum heat treatment, and copper intermetallic compound porous material MgCuM is obtained;MgCuM has double continuous structure.The preparation method is simple and easy to operate, pore size is adjustable, and pore distribution is uniform, and the preparation process is environment-friendly and pollution-free.

The utility model relates to the field of non ferrous metal smelting discloses a kind of raw material feeding devices of crude copper processing, including support frame, the upper portion of the support frame is provided with drying mechanism for drying raw material, the upper portion of the drying mechanism is provided with heating mechanism for heating drying gas, the drying mechanism includes drying cabinet fixedly connected on the upper portion of support frame, the side of the drying cabinet is provided with air inlet groove, fan is fixedly connected in the air inlet groove, the opposite sides of the drying cabinet are provided with multiple air outlets arranged in linear array.The utility model can dry crude copper raw material by drying mechanism, effectively remove the moisture or impurities attached to the surface of raw material, avoid moisture into subsequent smelting link when evaporating consume additional heat energy, through the efficient heating of subsequent refining, and avoid the generation of a large amount of gas, so that molten metal splashes, high-temperature material in the furnace is ejected, cause operating personnel personal injury.

The utility model discloses a kind of copper-clad plate cleaning equipment, its structure includes cleaning tank and rotating roller, copper-clad plate is placed into the inside of cleaning tank by import and export, in the first motor drives transmission rod so that in after driving gear and transmission gear lower rotating roller rotation pushes copper-clad plate to move, in moving to the bottom nozzle and top nozzle set up, water pump works so that spraying treatment is carried out to the upper and lower two end surfaces of copper-clad plate, and in the rotating of cleaning brush roller set up up and down, the surface of copper-clad plate is cleaned, to clean the surface of copper-clad plate, the upper and lower two end surfaces are cleaned, so that cleaning efficiency is higher, avoid the case that single face cleaning efficiency is low, and under the action of bottom adsorption roller and top adsorption roller, liquid on the surface of copper-clad plate is adsorbed, reduce the existence of surface liquid, so that subsequent surface drying efficiency is faster.

The application discloses a method for comprehensively recovering valuable metals in gold smelting slag, and belongs to the technical field of metallurgical solid waste resource utilization, and comprises the following steps: S1, ingredient mixing: uniformly mixing gold smelting slag, a chlorinating agent and a reducing agent according to a mass ratio, preparing into a pellet, and obtaining a mixture; S2, one-step chlorination and reduction roasting: after the mixture obtained in the step S1 is dried, the mixture is sent into a roasting furnace to be roasted, and chlorination volatilization of the valuable metals and reduction magnetization of iron oxides are simultaneously completed in the same roasting system; through accurate proportioning of the chlorinating agent and the reducing agent and synergistic regulation of the roasting temperature and the weak reducing atmosphere, the chlorination volatilization of gold, silver, copper, lead and zinc and the reduction magnetization of iron oxides are simultaneously completed in a single reactor and in the same roasting process, the problems of mutual contradiction between chlorination and reduction atmosphere and mutual restriction of recovery rates of two-step roasting processes are solved, the total roasting time is effectively shortened, and the comprehensive energy consumption is effectively reduced.

A method for manufacturing a wave gear device comprises: a hot forming step of hot forming an alloy steel composed of nickel, copper, molybdenum, and silicon into a first molded product having a silk hat-type housing shape at a first temperature of 950 to 1300°C; a normalizing step of isolating the first molded product at the first temperature for a predetermined time and, after the isolating time has elapsed, slowly cooling the first molded product to a second temperature of 750 to 900°C; an austempering step of isolating the first molded product at the second temperature and then cooling it to a third temperature of 250 to 400°C to form residual austenite in the first molded product; a heat treatment step of isolating the first molded product that has undergone the austempering step at the third temperature and then cooling it at room temperature to stabilize the microstructure of the first molded product; and a gear forming step of turning and toothing the first molded product that has undergone the heat treatment step to form a second molded product having a soluble external gear shape. The method comprises a step and a trip step of applying impact to the surface of the second molded product to induce a processing-induced transformation in some of the austenite remaining in the second molded product, thereby transforming the surface of the second molded product into martensite.

The application relates to a preparation process of a high-density powder metallurgy iron-based alloy, and relates to the technical field of metallurgical materials, in particular to a high-density powder metallurgy iron-based alloy preparation process. The preparation process comprises the following steps: taking copper (2%), nickel (2%), molybdenum (1%), graphite (0.3%) and the rest of iron according to the mass percentage, and making the above raw materials into 800-mesh powders; uniformly mixing the powders; pressing the mixed powders into blanks; sintering the blanks at 1100-1250 DEG C under a protective atmosphere or vacuum condition for 30-120 minutes; and obtaining the iron-based alloy product through shaping. The iron-based alloy material prepared by optimizing the powder granularity (800-1000 mesh), the pressing mode and the sintering is obviously superior to traditional powder metallurgy iron-based materials. The iron-based alloy product has the comprehensive advantages of high density, high strength, good size precision and stable performance, and has a wide industrial application prospect.

The utility model provides a kind of copper material screening device of magnetic attraction screening, belong to copper material screening technical field.The problem of traditional method mainly relies on the simple screening of screen plate, when the particle size of copper and iron is similar, screen plate cannot effectively separate, leading to copper material mixed with iron impurities, reduces the recovery purity problem.Copper material screening device of magnetic attraction screening, including box, the top of box inner chamber is equipped with adsorption mechanism, the adsorption mechanism includes fixed plate, the bottom of fixed plate is connected with the top of box fixedly connected.The utility model can make screening plate transverse reciprocating motion, and the copper-iron mixture is vibrated and screened, and the mixture with larger volume is pre-screened, the strong magnetic field is generated after electromagnetic adsorption roller is electrified, and the iron material can be selectively adsorbed, iron is strong magnetic material, and the adsorption effect is remarkable, while copper material is not affected due to paramagnetic characteristic, copper-iron preliminary separation is realized, and the screening effect is improved.

The invention relates to an aluminothermy welding flux for a zinc-clad steel grounding material and a welding method of the aluminothermy welding flux, and belongs to the technical field of metal material welding. In order to solve the core technical problem that joint potential matching and welding firmness compatibility are difficult to realize by an existing aluminothermy welding flux for the zinc-clad steel grounding material, the invention provides the aluminothermy welding flux for the zinc-clad steel grounding material. The aluminothermy welding flux comprises iron oxide powder, aluminum powder, tin powder and nickel powder. According to the invention, the iron-based welding flux is compounded with tin and nickel, and the tin and the nickel have a synergistic effect, so that the technical prejudice that the iron-based welding flux is difficult to adapt to zinc-clad steel welding in the field is overcome, and the unexpected technical effect is realized. The tensile strength of the connector is larger than or equal to 620 MPa, the corrosion rate is smaller than 0.05 mm / year, the conductivity loss is smaller than 5%, and the performance is obviously superior to that of a copper-based connector. The problem of compatibility of potential matching and welding firmness is fundamentally solved, galvanic corrosion is eliminated, the process is simple and convenient, the cost is controllable, and corrosion prevention and engineering reliability are greatly improved.

An object is to provide a copper-chromium oxide spinel having excellent dispersibility in a resin composition and excellent adhesion to plating, and a resin composition and a resin molded article containing the copper-chromium oxide spinel. Specifically, provided is a copper-chromium oxide spinel with a particle size distribution spread SPAN = (D90 - D10) / D50 of 2 or less where, in volume-converted particle size distribution obtained by a laser diffraction and scattering method, particle sizes with a cumulative frequency from a smaller particle size side of 10%, 50%, and 90% are D10, D50, and D90, respectively.

This utility model relates to the field of crucibles and discloses a non-stick, easy-to-demold crucible for high-purity copper smelting furnaces. It includes a crucible forming mold and a crucible body. A support frame is installed on the upper side wall of the forming mold, and a pushing cylinder is installed on the upper side wall of the support frame. A connecting plate is fixedly connected to the output end of the pushing cylinder. A connecting pad is fixedly connected to the lower side wall of the connecting plate, and a fixing plate is installed on the lower side wall of the connecting pad. Several connecting branch pipes are fixedly connected to the lower side wall of the fixing plate. A connecting suction cup is fixedly connected to the lower end of each connecting branch pipe, and a venting component is fixedly connected to the upper side wall of each connecting suction cup. The crucible of this utility model has excellent non-stick and easy-to-demold properties, effectively improving the efficiency and quality of high-purity copper smelting, reducing crucible damage, and extending the service life of the crucible.

This invention discloses a copper strip electric annealing mechanism, comprising a heating section, a protective gas section, and a cooling tank section. The protective gas section includes a gas pipe and a first support, with the first support supporting the gas pipe. The gas pipe is inverted V-shaped, with an air inlet at its top end, a copper strip inlet at its left end, and its right end immersed in cooling water in the cooling tank section, with a copper strip outlet thereon. A branch air outlet is located on the upper side of the right end of the gas pipe. The heating section includes a first electrode wheel, a second electrode wheel, and a second support. The first electrode wheel is rotatably connected to the top end of the gas pipe, and the second support is located outside the copper strip inlet of the gas pipe. The second electrode wheel is rotatably connected to the second support. This invention provides a copper strip electric annealing mechanism that effectively prevents oxidation of the copper strip during the annealing process, improving surface quality and product reliability.

The application discloses a continuous annealing furnace heating performance uncertainty evaluation method and system, and relates to the technical field of heat treatment equipment state evaluation, and comprises the following steps: based on the heating mode of copper strip heat treatment, the heat energy input of the heating system and the heat absorbed by the copper strip per unit time are calculated; based on the resistance change rate of the electric heating element of the heating system and the air-fuel ratio deviation coefficient of the heating system, a system state factor is constructed; based on the heat energy input of the heating system, the heat absorbed by the copper strip per unit time and the system state factor, a heat energy transfer index is constructed; the mean value and the variance of the heat energy transfer index are calculated through the first-order second-moment method; based on the mean value and the variance of the heat energy transfer index, a target normal distribution to which the heat energy transfer index is subjected is constructed; and based on the target normal distribution, the heat energy transfer index is mapped into the probability distribution of a plurality of discrete score sections. The application alleviates the technical problems of possible deviation and even misjudgment existing in the traditional deterministic evaluation method.