41 results about "Bound copper" patented technology

The invention relates to the technical field of signal terminal wire winding, in particular to sensor signal terminal electroplating wire winding fixing equipment which comprises a case, the top of the case is connected with a control computer through a mechanical arm, a three-axis moving mechanism, a material table and a copper wire feeding mechanism are arranged in the case, the material table is arranged in the middle of the lower portion of the three-axis moving mechanism, and the copper wire feeding mechanism is arranged in the middle of the material table. The copper wire feeding mechanism is located on the rear side of the three-axis moving mechanism, the three-axis moving mechanism is provided with a supporting carrying table, a wire cutting mechanism and a copper wire winding mechanism are arranged on the supporting carrying table, copper wire end fixing mechanisms are symmetrically arranged on the two sides of the material table, and a copper wire roll is arranged on the copper wire feeding mechanism. The three-axis moving mechanism drives the winding mechanism to freely move in the X / Y / Z axial direction, the copper wire tension adjustable controller is combined, accurate positioning and constant tension output of a copper wire in a three-dimensional space are achieved, it is ensured that the wire winding track is strictly matched with the geometrical characteristics of a signal terminal, and the wire winding uniformity and the electroplating quality are improved.

The invention relates to the technical field of cable processing, in particular to a non-woven shielding type fire-resistant data cable processing method, which comprises the following steps of: acquiring tension data of each copper wire in a fire-resistant data cable processing process and rotating speed data in a winding process, and analyzing a tension data nonlinear change coefficient of the copper wire in each time period; in combination with the fluctuation degree of the frequency amplitude of the tension data of the copper wire in each time period in the frequency domain, abnormal values of nonlinear change and random violent jitter of the tension data of the copper wire in each time period are obtained, and the correlation between the rotating speed data in each time period and the tension data of each copper wire is analyzed; obtaining the influence coefficient of the copper wire tension difference and the rotating speed change during the processing of the shielding layer, obtaining a gap abnormal coefficient by combining the change degree of the gap between the copper wires, and adjusting the gain coefficient of the copper wire tension adjustment during the processing of the fireproof data cable, thereby completing the processing of the fireproof data cable. The processing quality of the fireproof data cable can be improved.

The invention discloses a roller grinding management method based on the surface quality of a copper plate strip, and aims to solve the problems that existing roller grinding depends on experience, positioning is inaccurate, and grinding is excessive or insufficient. The method comprises the following steps: collecting waveform data of copper print defects and flatness on the surface of a copper plate strip, and performing timestamp synchronous calibration with a rolling speed and a coil length counting signal of a rolling mill; constructing a roller damage reverse diagnosis mechanism, calculating a damage angle in combination with a copper printing coordinate, identifying a damage type, and calculating a wear depth; differentiated grinding work orders are generated according to different damage types, and high-precision positioning grinding is executed; and after returning to the production line, carrying out on-line real-time monitoring and off-line sample rechecking on the original damaged position, dynamically adjusting parameters and judging the grinding fit state. Precision, differentiation and closed-loop management of roller grinding are achieved, the grinding efficiency is effectively improved, the service life of the roller is effectively prolonged, the surface quality of a copper plate strip is remarkably improved, and the defect rate is reduced.

The invention discloses a high-hardness high-thermal-conductivity gradient structure copper material which is composed of a base body and a surface layer combined on the surface of the base body, the base body is oxygen-free copper, and the surface layer is a copper boron nitride alloy composed of two phases of copper grains and a boron nitride film. The surface layer and the base body are metallurgically bonded; the boron nitride thin film in the copper boron nitride alloy is clamped between copper crystal grains to form a gradient distribution structure which is in a net shape to separate and wrap the copper crystal grains, and the boron nitride content of the gradient distribution structure is continuously reduced from the outside to the inside. The invention further discloses a preparation method of the copper material, oxygen-free copper serves as a substrate to form a base body in the copper material, copper-boron alloy with boron components distributed in a gradient mode is prepared on the surface of the oxygen-free copper substrate through laser additive manufacturing, then the copper-boron alloy on the surface of the oxygen-free copper is nitrided into copper-boron nitride alloy through nitriding treatment, and then the surface layer of the copper material is formed. And the composite copper material with high hardness and high thermal conductivity is obtained. The prepared copper material can meet the service requirements of the heat management industry on the wear resistance and the heat dissipation performance of components at the same time.

The invention discloses a copper-stainless steel bimetal thin-wall part and a preparation method thereof, and belongs to the technical field of metal material processing. The preparation method comprises the following steps that a copper material and a steel material are prepared into a composite blank; performing first destressing heat treatment on the composite blank to obtain a bimetal cylindrical blank; the bimetal cylindrical blank is subjected to repeated spinning, and a bimetal spinning prefabricated part is manufactured; and after second destressing heat treatment is conducted on the bimetal spinning prefabricated part, machining is conducted till the dimensional tolerance of the copper-stainless steel bimetal thin-wall part is achieved. By means of the method, the metal advantages of the copper material and the steel material can be combined, low-cost manufacturing of the high-performance composite part is achieved, and therefore a traditional metal composite scheme of welding or bolt connection is replaced.

The application discloses a feeding device for flame retardant processing, and relates to the technical field of flame retardant processing feeding, which comprises a base, and a cooling feeding mechanism is arranged on the top of the base. When the application is used, the air cooler delivers cold air into the three-way pipe, and two air flows enter the central cavity and the air cavity respectively. The cold air in the air cavity enters the hollow cavity through the second communication hole and the first communication hole, exchanges heat with the cold air absorbed by the copper-based foam metal framework, and reduces the temperature of the feeding blade and the raw material. Meanwhile, the cold air in the central cavity passes through the aluminum-based silicon carbide composite layer and takes away the heat of the rotating shaft, thereby assisting in reducing the temperature of the raw material. Through the cooling feeding mechanism and the copper-based foam metal framework, the heat exchange of the cold air is strengthened, the overall strength is enhanced, the temperature is reduced, and the strength is doubled. In combination with the aluminum-based silicon carbide composite layer, the high torsional strength of the aluminum-based silicon carbide composite layer bears the torque transmission, and assists in reducing the temperature.

The present invention discloses a step-by-step enhanced recovery method for recovering multiple complex copper ores. The method includes grinding the sample to an appropriate particle size, then directly flotating copper sulfide using amyl xanthate. The tailings from the flotation of the copper sulfide are then deslimed. After desliming, the tailings are activated with sodium sulfide and free copper oxide is flotated using amyl xanthate and butyl ammonium black powder as collectors. Ethylenediamine phosphate is then used for enhanced activation, followed by the addition of sodium sulfide and amyl xanthate and butyl ammonium black powder as collectors to flotate bound copper oxide. Finally, high-gradient strong magnetic separation is used to recover weakly magnetically bound copper oxide that is difficult to float and contains adsorbed or fine particles of iron, manganese, cobalt, and other minerals. The method achieves a total copper recovery rate exceeding 85%, which is more than ten percentage points higher than the global average recovery rate for copper oxide ores. This method effectively addresses the current technical problem of low recovery rates for copper oxide ores using a single process.

The invention discloses a preparation method of an in-situ nitrogen-doped graphene reinforced copper-based composite material based on external pyrolysis, and relates to the technical field of metal-based composite material preparation. The method specifically comprises the following steps that copper powder is placed in a heating device, and a solid nitrogen-containing carbon source is placed in an external pyrolysis device; after the system is vacuumized and cleaned, inert gas and hydrogen are introduced, and the heating device is heated to a specific temperature and is subjected to heat preservation. An external pyrolysis device is started, the temperature is increased to the pyrolysis temperature, a nitrogen-carbon-containing small molecule precursor is generated and conveyed into a heating device, in-situ growth is conducted on the surface of the copper powder, and high-dispersion composite powder is prepared; and sintering the powder to obtain the densified high-dispersion nitrogen-doped graphene / copper composite block material. According to the method, the in-situ uniform growth of the nitrogen-doped graphene on the surface of the copper powder is realized through a solid nitrogen-containing carbon source external pyrolysis technology in combination with a synergistic mechanism of copper powder regulation and control, precursor directional transportation and in-situ doping growth, and a new way is provided for controllable synthesis of the copper-based composite material.

The application discloses a laser composite-roller annealing method for high-strength steel and stainless steel composite plates, which is characterized by the following steps: strengthening the surface of the stainless steel by ultrasonic rolling, combining with the precise temperature control and softening of the surface layer of the high-strength steel by the homogenizing laser spot of the copper integrating mirror to reduce the hardness difference between the two to ≤30%, and significantly improving the deformation coordination; synchronously applying an auxiliary composite laser beam to complete rolling and composite, and integrating warm-pressing annealing and online flattening to realize the continuity of composite, annealing and flattening, reduce 3-5 processes, and realize short process; the thermal-mechanical coupling effect promotes the diffusion of interface atoms during the warm-pressing annealing process, forms a continuous solid solution structure, and further improves the interface bonding strength; the method is suitable for the composite of 500-1000 MPa high-strength steel and austenitic / dual-phase stainless steel, the parameter adjustment range is wide, and the efficient production of 1-5 mm thick plates is supported.

The preparation method comprises the following steps: carrying out surface cleaning and activating treatment on a metal cooker base body, putting the cooker into PVD coating equipment, vacuumizing, configuring a titanium target, a multi-component composite target and an oxide target, cleaning the surface of the cooker by adopting ion bombardment, depositing a titanium transition layer with the thickness of 0.1-0.5 mu m, and carrying out vacuum treatment to obtain the PVD composite coating cooker. The thickness of the deposited copper-aluminum-silicon-chromium carbide composite functional layer is 4.5-5.5 microns, the thickness of the deposited oxide surface layer is 0.2-0.8 microns, and furnace cooling is carried out after film plating is completed. The three-layer gradient structure design is adopted, the titanium transition layer and the base body form metallurgical bonding, the copper-aluminum-silicon-chromium carbide composite functional layer provides hydrophobic and oleophylic performance, the oxide surface layer blocks oxygen and nitrogen diffusion, and the comprehensive performance of being high in film layer bonding force, resistant to high temperature and lasting and non-sticky is achieved.

The invention discloses a laser compounding-rolling annealing method for a high-strength steel and stainless steel composite board, which is characterized in that the surface of stainless steel is subjected to nanocrystallization strengthening through ultrasonic rolling, the surface layer of the high-strength steel is subjected to precise temperature control softening by combining a copper integral mirror homogenization laser spot, the hardness difference between the stainless steel and the high-strength steel is reduced to be less than or equal to 30%, and the deformation coordination is obviously improved; the auxiliary composite laser beams are synchronously applied to complete rolling compounding, warm-pressing annealing and online flattening are integrated, compounding, annealing and flattening continuity is achieved, 3-5 procedures are reduced, and the short process is achieved; the thermal-mechanical coupling effect in the warm-pressing annealing process promotes interface atom diffusion, a continuous solid solution structure is formed, and the interface bonding strength is further improved; the method is suitable for compounding of 500-1000 MPa high-strength steel and austenite / duplex stainless steel, the adjustable range of parameters is wide, and efficient production of plates with the thickness of 1-5 mm is supported.

The invention relates to the technical field of copper-clad aluminum photovoltaic welding strip processing, in particular to a continuous preparation process and device for a copper-clad aluminum photovoltaic welding strip, and the device specifically comprises a chain plate conveying table, the top of the chain plate conveying table is fixedly connected with a mounting seat, and the mounting seat is provided with an aluminum wire indentation assembly and a copper strip indentation assembly which are in linkage fit; an aluminum wire indentation assembly is combined with a copper strip indentation assembly, continuous extrusion of concave-convex traces on the surfaces of aluminum wires and copper strips is achieved, the contact area between the aluminum wires and the copper strips is increased, a tight wrapping structure is formed for subsequent connection between the copper strips and the aluminum wires, and the conductivity of the copper-clad aluminum photovoltaic welding strip is remarkably improved; and before wrapping, scraping of an oxide layer and impurities on the surface of the aluminum wire, scrap cleaning and straightening treatment of the aluminum wire are realized, so that the layering risk of a copper-aluminum interface is avoided, the conductive efficiency is further improved, and the transmission loss of energy is reduced.

The application discloses a process method for improving Pd distribution on a FAB surface of a palladium-plated copper wire, and belongs to the technical field of semiconductor bonding wire materials. The application uses a dichlorotetraammine palladium plating system as a basis, uses Ni elements and / or platinum group noble metal elements as plating liquor modification components, combines copper core pretreatment, pulse plating, gradient coating preparation, IMC interface presetting and post-treatment, uses the interface diffusion barrier characteristics of Ni, uses the high surface energy advantage of platinum group noble metals, improves Pd-Cu interface diffusion activation energy, and solves the problems that in the existing palladium-plated copper wire FAB ball forming process, a Pd layer is easy to excessively diffuse to a copper core, surface Pd coating is discontinuous, and it is difficult to form a dense solid protective layer. The application widens the selection window of modification elements, takes into account low cost and high reliability, is suitable for existing dichlorotetraammine palladium industrial plating production lines and mainstream bonding equipment, does not need equipment modification, is stable and controllable, and is suitable for large-scale mass production application of semiconductor packaging palladium-plated copper wires.

An anti-backflow commutator includes a bakelite powder substrate with a mounting hole at its center. Commutator segments are evenly distributed around the outer circumference of the substrate. Mica sheets are used for inter-segment insulation between adjacent commutator segments. Each commutator segment includes a commutator body with dovetail grooves around its bottom. The bottom surface of each dovetail groove is an upward-sloping surface, so that the bottom of the commutator body is dovetail-shaped in both the transverse and longitudinal sections. A copper foot is located at the bottom of the commutator body, with symmetrical mounting grooves on both sides. This invention achieves multi-directional anti-backflow and anti-torsion locking between the commutator segments and the substrate through a multi-dimensional dovetail groove structure. Combined with the multiple anchoring structure of the copper foot, it significantly improves the anti-backflow and anti-torsion capabilities of the commutator segments. The structure is reliable and suitable for high-speed, high-power motor applications.

The application relates to the technical field of cable processing, in particular to a non-woven shielding type fireproof data cable processing method, which comprises the following steps: obtaining tension data of each copper wire in a fireproof data cable processing process and rotating speed data in a winding process, analyzing a non-linear change coefficient of the tension data of the copper wire in each time period, combining a fluctuation degree of a frequency amplitude of the tension data of the copper wire in each time period in a frequency domain, obtaining abnormal values of non-linear change and random violent shaking of the tension data of the copper wire in each time period, analyzing a correlation between the rotating speed data in each time period and the tension data of each copper wire, obtaining an influence coefficient of a copper wire tension difference and rotating speed change during shielding layer processing, combining a gap change degree between the copper wires to obtain a gap abnormality coefficient, adjusting a gain coefficient of copper wire tension adjustment in the fireproof data cable processing process, and completing the processing of the fireproof data cable. The application can improve the processing quality of the fireproof data cable.

The application provides an automatic loading method, device and equipment based on a grabbing machine and a storage medium, and the method comprises the following steps: if a vehicle to be loaded is parked in a preset parking area, the current delivery plan of a copper rod coil is obtained, the delivery plan at least comprising the delivery quantity and the standard size of the copper rod coil; the loading positions of the copper rod coils in the delivery quantity are planned in combination with the standard size of the copper rod coil and the car compartment size of the vehicle to be loaded, so as to determine the loading positions of the copper rod coils; the copper rod coils in the finished product warehouse are screened multiple times according to a preset screening rule, so as to determine the target copper rod coils in the delivery quantity, and the preset screening rule at least comprising the shortest distance between the copper rod coil and the vehicle to be loaded or / and the longest storage time of the copper rod coil in the finished product warehouse; and the grabbing machine is controlled according to the loading positions to automatically load the target copper rod coils. In this way, the automatic loading process is realized based on the grabbing machine, the loading efficiency and quality are improved, and the labor cost is reduced.

The invention relates to the technical field of hydro-generator cooling, in particular to a hydro-generator stator cooler tube expansion process and a copper tube wall thickness calculation method, comprising the following steps: S1, collecting cooling water quality parameters of a hydro-generator stator cooler to generate a water quality parameter data set; s2, inputting the water quality parameter data set into a physical-empirical mixed corrosion model according to the material characteristics of the copper pipe, calculating the expected corrosion rate and corrosion allowance of each pipe section, and outputting pipe section corrosion data; and S3, the pipe section corrosion data is combined with the copper pipe strength and design service life requirements, the self-adaptive wall thickness of each pipe section is calculated, and wall thickness design data is formed. According to the method, self-adaptive wall thickness design data is formed by combining the strength characteristic of the copper pipe, and differentiated wall thickness configuration is achieved; the defects caused by an empirical method of uniformly adding the allowance are avoided, the local corrosion resistance is improved, and unnecessary material redundancy is reduced, so that the risks of perforation and leakage of the cooling pipe are reduced.

The present application provides a copper-iodine cluster-based thermochromic fluorescent fiber and its wet spinning preparation method and use. The thermochromic fluorescent fiber comprises calcium alginate and a copper-iodine cluster compound, wherein the copper-iodine cluster compound comprises at least one of Cu4I4(4-benzylpyridine)4 and Cu4I4(4-tert-butylpyridine)4. Thus, the calcium alginate polymer base combined with the copper-iodine cluster compound can provide good protection without causing a significant loss of its emission intensity, thereby enabling the copper-iodine cluster-based thermochromic fiber to exhibit a reversible color change in the temperature range of 80K to 300K under ultraviolet light. The change is high in luminescence efficiency and good in stability.

The application discloses a kind of based on copper plate strip surface quality roll grinding management method, to solve the existing roll grinding depends on experience, positioning is not accurate, overgrinding or insufficient problem.This method includes: collecting copper plate strip surface copper printing defect and flatness waveform data, and with the rolling speed and roll length count signal of rolling mill time stamp synchronization calibration;Build roll damage reverse diagnosis mechanism, combined with copper printing coordinate calculation damage angle, identify damage type, calculate wear depth;For different damage types generate differentiated grinding work order, execute high-precision positioning grinding;Return to production line after original damage position carries out online real-time monitoring and off-line sample review, dynamically adjust parameter and determine grinding qualified state.The application realizes the precision, differentiation and closed-loop management of roll grinding, effectively improves grinding efficiency and roll service life, significantly improves copper plate strip surface quality, reduces defect rate.

The present disclosure provides a screening method, a processing method, a wafer, a screening device, an apparatus and a medium. The screening method comprises: obtaining wafer trace information of a wafer to be screened; determining whether the wafer to be screened has intrinsic gettering capability based on the wafer trace information and a preset gettering capability judgment standard, wherein the intrinsic gettering capability refers to the ability of the wafer to be screened to bind copper impurities by using the intrinsic defect structure naturally formed in the growth process of the wafer; if the determination is yes, the wafer to be screened is marked as a wafer with intrinsic gettering capability; if the determination is no, the wafer to be screened is marked as other wafers. The screening method screens the wafer with intrinsic gettering capability according to the wafer trace information, avoids the complex steps of actively introducing gettering traps in the traditional process, simplifies the screening process, improves the efficiency, and helps to ensure the surface cleanliness of the wafer in the subsequent manufacturing.

A novel copper-steel composite pressure ring for a submerged arc furnace comprises a plurality of pressure ring units, the pressure ring units are sequentially connected end to end to form an annular structure, each pressure ring unit comprises a pressure ring unit body, a cooling water channel is arranged in each pressure ring unit body, and a water inlet and a water outlet are formed in the two ends of each cooling water channel respectively. The pressure ring unit is characterized in that the pressure ring unit body comprises an outer copper plate and a copper bottom boss, the copper bottom boss is arranged on the inner side of the lower end of the outer copper plate, and the outer copper plate and the copper bottom boss are made of copper into a whole; an inner side steel plate is compounded on the inner side surface of the outer side copper plate and is tightly combined with the outer side copper plate; and a bottom steel plate is compounded on the upper surface of the copper bottom boss and is tightly combined with the copper bottom boss. The novel copper-steel composite pressure ring for the submerged arc furnace not only has strong cooling performance, but also has higher overall mechanical strength and strong deformation resistance, and is beneficial to prolonging the service life.

The invention is applicable to the technical field of copper foil surface roughening for flexible copper-clad plates, and particularly relates to a copper foil surface laser roughening method for a flexible copper-clad plate, a copper foil and a flexible copper-clad plate, and the method comprises the following steps: collecting local tensile deformation, initial length and sectional area of the copper foil and environment temperature of a copper foil processing area in a laser roughening process; determining the local tensile deformation rate of the copper foil according to the tensile deformation amount and the initial length, and judging whether the local stress of the copper foil is uniform or not; if the stress is not uniform, the calibrated copper foil elasticity modulus is obtained according to the environment temperature of the copper foil processing area, and the local tension of the copper foil is determined by combining the local tensile deformation rate and the sectional area of the copper foil; determining a laser scanning speed matched with the local tension of the copper foil based on the local tension of the copper foil and a correlation model of the local tension of the copper foil and the laser scanning speed; and controlling the laser head to perform laser roughening treatment on the surface of the copper foil according to the laser scanning speed. According to the embodiment of the invention, the uniformity of the surface roughness of the copper foil can be improved.

The present invention is a method for cleaning a non-conductive surface of a non-conductive layer, wherein the non-conductive layer is based on a composite of an organic polymer and a glass filler, includes blind microvias (BMVs) for the fabrication of articles having integrated circuits, the non-conductive surface includes non-conductive walls of the BMVs, the non-conductive layer is bonded to a copper layer, the copper layer forms the bottom of the BMVs, and in the following order: (i) preparing the non-conductive surface of the non-conductive layer; (ii) treating the surface prepared in step (i) using a desmear process including, in this order, the steps of (t1) treating the surface prepared using a swelling agent solution containing water and an organic solvent, (t2) treating the surface using an aqueous etching solution containing an oxidizing agent, and (t3) treating the surface using an aqueous reducing solution containing a reducing agent; (iii) treating the surface treated in step (ii) using an aqueous alkaline cleaning agent solution to remove the glass filler; and (iv) drying the surface treated in step (iii) to obtain a dry surface, preferably a water-free surface, and relates to the use of the method.

This invention relates to a complex water-cooled channel hot isostatic pressure composite copper tube water-cooling module and its manufacturing method. It includes a cast module body and a cast steel pipe embedded within the module body, with both ends of the cast steel pipe located outside the module body. It also includes a copper pipe inserted into the cast steel pipe after casting. The copper pipe expands under high temperature and pressure and then adheres to the inner wall of the cast steel pipe. This invention eliminates the coating thermal barrier and air gap thermal barrier of traditional water-cooled module piping. The piping in the water-cooled module achieves metallurgical bonding with the module body, and the copper pipe achieves metallurgical bonding with the cast steel pipe in the module. This significantly improves the heat exchange capacity of the water-cooled channel, making the overall thermal conductivity of the complex water-cooled channel hot isostatic pressure composite deoxidized copper tube water-cooled module approach that of the module body material. This greatly extends the service life of the water-cooled module and ensures the safe, efficient, and long-term operation of high-temperature furnaces.

The application relates to a low-temperature-resistant construction high-voltage flexible cable, which is characterized by comprising a plurality of heat preservation pipes, an insulated wire core composed of a plurality of insulated conductors, a filling body, an isolation sleeve, a steel wire armor layer, a winding and binding copper belt and an outer sheath; the cable is suitable for construction insulation and sheath cracking prevention under a low-temperature environment below -15 DEG C, can effectively make the cable laying construction no longer be restricted by the low-temperature environment of a construction region, has high construction efficiency and low cost, and has popularization and application value. In addition, in specific application, water vapor is introduced into the heat preservation pipe during laying construction, and the condensed water is left in the heat preservation pipe; when the cable is high-load heated, the condensed water left in the heat preservation pipe can absorb part of the heat, the heat load of the cable conductor is higher, the carrying capacity is larger, the aging degree of the insulation and sheath material in the cable due to high temperature is reduced, and the service life of the cable can be prolonged to a certain extent.

The present invention relates to the technical field of signal terminal wire winding, and specifically to a wire winding and fixing device for electroplating sensor signal terminals, including: a chassis, the top of the chassis is connected to a control computer through a robotic arm, a three-axis moving mechanism, a material table and a copper wire feeding mechanism are arranged inside the chassis, the material table is centrally arranged below the three-axis moving mechanism, the copper wire feeding mechanism is located behind the three-axis moving mechanism, the three-axis moving mechanism is provided with a support platform, a wire cutting mechanism and a copper wire guiding and winding mechanism are arranged on the support platform, copper wire end fixing mechanisms are symmetrically arranged on both sides of the material table, and a copper wire coil is arranged on the copper wire feeding mechanism; the present invention drives the winding mechanism to freely move along the X / Y / Z axes through the three-axis moving mechanism, and combines with a copper wire tension adjustable controller to achieve precise positioning of the copper wire in three-dimensional space and constant tension output, ensuring that the wire winding trajectory strictly matches the geometric features of the signal terminal, and improving the wire winding uniformity and electroplating quality.

The invention discloses stretching equipment for copper strip processing and a method thereof, and relates to the field of copper strip processing. The stretching equipment for copper strip machining comprises an uncoiler, a straightening machine, a plurality of stretching machines, a coiling machine and a control machine, and each stretching machine comprises a stretching unit, a lubricating unit and a monitoring unit. According to the stretching equipment for copper strip processing and the method thereof, the temperature and the thickness of the stretched copper strip are measured through the monitoring unit, then the corresponding stretching method is designed, in the method, the pressure, the speed and the lubricant amount serve as variables, meanwhile, the temperature value and the thickness value of the copper strip are combined, and a corresponding nonlinear coupling model is designed; a corresponding control system is arranged in a control machine to execute the method, so that when the copper strip is stretched by a plurality of stretching machines, the pressure, the speed and the lubricant amount can be adaptively adjusted according to the thickness and the temperature of the stretched copper strip, and a final finished product meets the requirements.

The invention provides a copper-iodine cluster-based thermochromic fluorescent fiber and a wet spinning preparation method and application thereof, the copper-iodine cluster-based thermochromic fluorescent fiber comprises calcium alginate and a copper-iodine cluster compound, and the copper-iodine cluster compound comprises at least one of Cu4I4 (4-benzyl pyridine) 4 and Cu4I4 (4-tert-butyl pyridine) 4. Therefore, the calcium alginate polymer base combined with the copper-iodine cluster compound can play a good protection role and does not cause obvious loss of emission intensity, so that the copper-iodine cluster-based thermochromic fiber can show color change under ultraviolet light within a temperature range of 80K-300K, the change is reversible, the luminous efficiency is high, and the stability is relatively good.

The invention discloses a rhenium-copper double-loaded ozone catalyst and a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing aluminum oxide with copper salt, rhenate and a solvent, and standing overnight after vibration treatment; and filtering, collecting filter residues, and roasting to obtain the rhenium-copper double-loaded ozone catalyst. According to the rhenium-copper double-loaded ozone catalyst, activated aluminum oxide serves as a carrier, perrhenate radicals and copper ions serve as main active components, copper can inhibit metal ions from being dissolved out, and the rhenium-copper double-loaded ozone catalyst is prepared through an impregnation and calcination method; copper and rhenium are effectively loaded on porous activated aluminum oxide through high-temperature roasting, and ozone is adsorbed and promoted to be decomposed into hydroxyl free radicals, superoxide free radicals, singlet oxygen and other active oxygen in combination with the reaction activity of copper ions and perrhenate radicals, so that the purposes of effectively degrading organic matters in water and purifying water are achieved.

The invention discloses an agitation leaching method for iron-manganese coated copper oxide ore, and relates to the field of hydrometallurgy. According to the method, in the leaching process of complex copper oxide ore containing iron, manganese and combined copper, a composite catalytic oxidizing agent with super-strong oxidizing capacity is added and is matched with an acid leaching agent sulfuric acid and the like to leach the copper ore, and due to the enhanced oxidation effect of the catalytic oxidizing agent, the oxidation reaction of minerals which can only occur at high temperature and high pressure is triggered at normal temperature and normal pressure; meanwhile, operation can be carried out at normal temperature and normal pressure, and the process limitation and the defect that the prior art depends on high temperature and high pressure are avoided, so that the effects of effectively reducing energy consumption, reducing equipment corrosion and improving the working environment are achieved, the technological process is simplified, the requirement for equipment is lowered, and the method is suitable for industrial production. Therefore, the leaching rate is improved, and better economic benefits are obtained.