57 results about "Aluminium bronze" patented technology

The invention relates to a laser processing method for a coated armor structure of wear-resistant super-hydrophobic aluminum bronze, which comprises the following steps of: preparing an aluminum bronze workpiece, polishing and cleaning, depositing a ceramic wear-resistant film on the surface of the workpiece by adopting pulse laser, and etching the ceramic wear-resistant film by adopting femtosecond laser, so as to obtain a coated armor structure of the wear-resistant super-hydrophobic aluminum bronze. And then chemical modification of the wear-resistant armor structure is completed through heat treatment, chemical modification of the micro-nano surface structure is completed, and the wear-resistant super-hydrophobic aluminum bronze is obtained. The wear-resistant ceramic film and the wear-resistant armor structure can resist wear together, double guarantee is provided for the internal hydrophobic microstructure, the super-hydrophobic wear resistance of the surface of a component in underwater equipment can be improved, the service life of the component can be prolonged, and the problem of marine organism corrosion is solved.

The invention provides a titanium alloy-based composite coating structure, a method for inhibiting upward dilution of Ti during cladding of a wear-resistant layer on the surface of a titanium alloy and application of the titanium alloy-based composite coating structure. The method comprises the steps that an aluminum bronze barrier layer is formed on a titanium alloy substrate, the phase structure of the aluminum bronze barrier layer comprises a Cu phase and a Cu2TiAl phase, the Cu phase and the Cu2TiAl phase are each of an FCC crystal structure, and the Cu2TiAl phase is formed by reacting Ti in the titanium alloy substrate with Cu and Al; the volume ratios of a Cu phase and a Cu2TiAl phase in the aluminum bronze barrier layer are 40%-45% and 55%-60% respectively; and forming the transition alloy wear-resistant layer on the titanium alloy substrate with the aluminum bronze barrier layer by adopting a laser cladding technology. The aluminum bronze barrier layer is arranged to reduce upward dilution of Ti elements in the cladding process of the transition alloy wear-resistant layer, generation of a large number of hard brittle phases is avoided, the difference between the wear-resistant layer and a titanium alloy matrix in the thermophysical property aspect is relieved, and coating cracking is reduced.

The invention belongs to the technical field of efficient mining of closed mine terrestrial heat, and particularly relates to an efficient mining device and method for closed mine terrestrial heat, the efficient mining device comprises an inner pipe, an outer pipe is arranged outside the inner pipe, the outer wall of the outer pipe is fixedly connected with a high-temperature-resistant lining layer, and the outer wall of the high-temperature-resistant lining layer is fixedly connected with an efficient heat preservation layer; the outer wall of the efficient heat preservation layer is fixedly connected with a protective outer layer. The inner pipe adopts a spiral shape and covers the fins, the outer pipe constructs a multi-layer protection system, and the inner pipe and the outer pipe cooperate to lay a foundation for efficient heat exchange and energy transmission. The inner pipe is made of aluminum bronze, heat of geothermal fluid can be rapidly absorbed by means of the high heat conductivity coefficient of 35-50 W / (m.K) of the inner pipe, the fluid flowing path is ingeniously prolonged by means of the spiral structure design, the fluid turbulence degree is enhanced in cooperation with fins, the heat exchange area is remarkably increased, and the heat exchange efficiency is improved by 30% or above compared with a traditional straight pipe structure.

The application relates to the technical field of aluminum bronze material, in particular to a high-hardness aluminum bronze material and a preparation method thereof. The application comprises the following steps S1: raw materials are put into a vacuum induction melting furnace, smelting is carried out at 1250-1350 DEG C, alloy liquid is obtained; the alloy liquid is continuously cast at 1150-1300 DEG C, a cast ingot is obtained; the cast ingot is extruded to form an aluminum bronze material; step S2: after the aluminum bronze material is polished, polished, cleaned and dried, a primer material is synchronously fed to a dry aluminum bronze material in a magnetic field assisted laser cladding mode to obtain a primer layer; step S3: a wear-resistant material is synchronously fed to the primer layer in a magnetic field assisted laser cladding mode to obtain a wear-resistant layer, and tempering is carried out to obtain the high-hardness aluminum bronze material.

The present invention provides an aluminum bronze alloy excellent in both of the corrosion resistance (suppression of precipitation of a β phase) and the wear resistance (security of the hardness of the metal at a certain level or higher) and capable of being stably manufactured. The present invention also provides a sliding member using the aluminum bronze alloy and having the corrosion resistance, the wear resistance and the stability during manufacture. The aluminum bronze alloy of the present invention is composed of copper (Cu), aluminum (Al), nickel (Ni), iron (Fe) silicon (Si), and inevitable impurities, and has a structure composed of an α phase, a coarse Fe-Si-based intermetallic compound of 1 µm or larger, an infinitesimal κ phase different from the Fe-Si-based intermetallic compound, and a trace amount of inevitable phases.

The invention discloses an aluminum bronze refining method for a valve plate of a butterfly valve, which belongs to the field of alloy refining, and comprises the following specific steps: taking a certain amount of electrolytic copper, pretreating the surface of the electrolytic copper, removing surface scale, taking an aluminum material, preheating the aluminum material, taking prepared aluminum nickel, completing material preparation, and adopting a JC model to obtain a refined aluminum bronze material; aluminum bronze flow stress is predicted, and aluminum bronze refining parameters are adjusted; through cooperative use of the devices, on the basis of addition of aluminum nickel and iron and reduction of the content of an aluminum material, the melt viscosity can be reduced, the shaping capacity can be improved, high-temperature brittleness can be inhibited, formation of hard brittleness of an aluminum bronze raw material is reduced, the weight of a solid solution is improved, the melt viscosity is further reduced, and the melt fluidity is further improved; and by adding a proper amount of iron, aluminum and nickel, the flow stress in the aluminum bronze refining process is reduced, meanwhile, the aluminum and nickel can refine an intermetallic compound strengthening phase, and the thermoplasticity of the aluminum bronze is improved.

The invention discloses copper alloy powder and a method for conducting printing repair on an aluminum bronze workpiece through the copper alloy powder, and belongs to the technical field of alloys and repair of the alloys. The alloy comprises 25-32% of Ni, 12-17% of Co, less than or equal to 1.8% of Mn and less than or equal to 2% of Si. O is less than or equal to 0.03%, and the balance is Cu. By preferably increasing the contents of Ni and Co elements, the wear resistance of the repaired surface and the bonding performance between the matrix and the additive repair layer are improved while the safety in the large-batch preparation and use process of the powder is ensured. The proportion of nickel and cobalt in the alloy is increased, the strength and hardness of the copper alloy can be improved, the nickel and the cobalt hinder dislocation movement in metal lattices through different micromechanisms, in other words, the nickel plays a role through solid solution strengthening, and the cobalt plays a role through precipitation strengthening.

The application discloses a large bearing retainer copper / steel heterogeneous material welding process and belongs to the technical field of non-ferrous metal heterogeneous welding. The process steps are as follows: a welding flux is applied to the edge of the contact surface of an aluminum bronze pad and alloy steel, the pad is assembled and fixed on a steel body, after 80-150 DEG C preheating treatment, a tungsten inert gas welding is used for filling wire welding, and through suitable welding parameters, the filler metal and the two side base materials are fully intermelted to form a weld. The application can solve the problems of weld cracks and incomplete fusion of the aluminum bronze-alloy steel fillet weld and groove weld in the structure of the large bearing retainer, can effectively improve the root shape, greatly reduce the root stress concentration, finally significantly improve the toughness of the copper / steel heterogeneous weld, and improve the service safety and reliability of the retainer. The process disclosed by the application is not limited to the aluminum bronze-alloy steel composite retainer heterogeneous welding of the large bearing, and is also very suitable for solving the root defect problem of the aluminum bronze partial penetration joint.

The application belongs to the technical field of alloy material heat treatment, and particularly discloses a high-impact toughness aluminum bronze alloy material and a preparation method thereof. 13 The Fe3Ni2 aluminum bronze alloy material is preheated; then high-temperature solid solution treatment, dynamic water quenching, medium-temperature solid solution treatment (820-830 DEG C) and water quenching are sequentially performed to complete the ladder solid solution treatment; and then first aging treatment and second aging treatment are sequentially performed to obtain the high-impact toughness aluminum bronze alloy material. Through the synergistic effect of high-temperature solid solution, dynamic water quenching, medium-temperature solid solution and double-stage aging, the coarse kappa phase is dissolved, the fine kappa phase is dispersedly precipitated, the continuous beta' phase is inhibited and the residual stress is reduced, the impact absorption capacity of the aluminum bronze alloy material is significantly improved while the tensile strength and hardness are basically maintained, and the aluminum bronze alloy material is suitable for marine engineering propellers, blades, pumps and valves and impact-resistant and corrosion-resistant components.

The invention relates to a high-temperature antifriction lubricating composite coating for space as well as a preparation method and application thereof, and belongs to the technical field of material surface modification and application. The coating is prepared from the following raw materials in percentage by mass: 65%-90% of aluminum bronze powder, 5%-15% of Ag powder and 5%-20.0% of MoS < 2 >-Ni powder, wherein the raw materials for preparing the coating are 100%; according to the coating, aluminum bronze powder, Ag powder and MoS2atNi powder which are evenly mixed are prepared on the surface of a metal matrix through the plasma spraying technology. The coating has excellent antifriction and lubricating effects in a space at 200-600 DEG C.

The invention discloses a preparation method and application of complex aluminum bronze, the complex aluminum bronze comprises Cu and an X element, the X element comprises the following elements in percentage by mass: 7-11 wt% of Al, 2-3 wt% of Fe, 0.02-2 wt% of Ni, 0.01-0.5 wt% of Mn and 0.01-0.1 wt% of Sn, and the sum of the mass percentages of all the elements is 100%; the structure of the complex aluminum bronze comprises a K phase, an alpha phase and a gamma 2 phase, the K phase is a compound of Fe3Al2 and FeAl3, the average size of the K phase does not exceed 5 microns, and the area ratio of the K phase in the structure is 1-4%. The complex aluminum bronze has high strength, good plasticity and excellent seawater corrosion resistance.

The invention provides a welding seam structure and a welding method of a copper / stainless steel explosion cladding plate. The welding seam structure comprises a stainless steel base layer, an aluminum bronze transition layer and an aluminum bronze cover surface layer which are formed through laser welding. The stainless steel base layer is located in the groove of the stainless steel layer, the aluminum bronze cover surface layer covers the surface of the stainless steel base layer, and the aluminum bronze transition layer is located between the aluminum bronze cover surface layer and the groove of the copper layer. According to the method, a welding seam deposited metal filling strategy of stainless steel bottoming / aluminum bronze transition and capping is adopted, the dilution rate of a welding seam is reduced by regulating and controlling laser welding process parameters, the amount of copper elements dissolved into stainless steel is reduced, crack-free fusion welding of the copper / stainless steel explosion composite plate is achieved, and the welding quality is improved. The method solves the problem that when a copper / stainless steel explosive composite plate is welded through an existing technological method, hot cracks are prone to being generated in a weld joint, and a new solution is provided for high-reliability fusion welding of the copper / stainless steel explosive composite plate.

The present invention relates to the technical field of aluminum bronze, specifically to a high-performance corrosion-resistant aluminum bronze and a preparation process thereof. The present invention comprises the following steps: S1: putting raw materials into a vacuum medium-frequency induction furnace for smelting to obtain an alloy melt, and casting the alloy melt into an ingot; hot-extruding the ingot to obtain an extruded billet; stretching and annealing the extruded billet to obtain an aluminum bronze; step S2: uniformly mixing water-based epoxy resin, zinc phosphate, modified graphene oxide, a curing agent, a defoaming agent, a film-forming aid, a leveling agent, and deionized water to obtain a corrosion-resistant coating; step S3: coating the corrosion-resistant coating on the surface of the aluminum bronze, and curing to obtain a high-performance corrosion-resistant aluminum bronze. The high-performance corrosion-resistant aluminum bronze prepared by the present invention not only has excellent mechanical properties, but also has excellent corrosion resistance.

The application discloses a performance control method of nickel-aluminum bronze with a dual-phase heterogeneous structure, and belongs to the field of laser additive manufacturing. Firstly, a mapping model of mechanical performance and dual-phase proportion is constructed; a deep feedforward neural network is used as a basic network, a dual-phase mixing rule and an interface strengthening law are introduced as material constitutive relations, and physical constraints are constructed in combination with physical control differential equations; training is completed by calculating data fitting errors and differential equation residuals to form a joint loss function according to network prediction output; then, a mapping model of dual-phase proportion and thermal accumulation behavior is constructed; a phase volume fraction is input into the model to obtain a temperature-time curve, and the temperature-time curve is solved by a sequential quadratic programming mathematical model to obtain nickel-aluminum bronze manufacturing process parameters; finally, nickel-aluminum bronze is prepared by using a method of interlayer laser remelting assisted laser melting deposition forming according to the obtained process parameters; and the method can realize rapid customization of nickel-aluminum bronze with target required mechanical performance and reduce test times.

The application discloses a brake pad and a preparation method thereof, and aims at solving the problems of a large amount of high-temperature grinding dust and the decline of the friction coefficient of the brake pad during continuous braking under high speed and high load. The brake pad comprises a friction material and a supporting seat. The friction material component comprises 65-75 wt% of a matrix component, 3-5 wt% of a matrix strengthening component, 15-25 wt% of a friction component, and 6-15 wt% of a lubricating component. The matrix component is beryllium bronze powder or aluminum bronze powder. The matrix strengthening component is metal powder. The friction component is ceramic whisker. The lubricating component is solid lubricant. The beryllium bronze powder or aluminum bronze powder material has a high thermal conductivity coefficient, and the generated grinding dust has a low temperature. The ceramic whisker makes the brake pad have a high and stable friction coefficient, and the generated grinding dust is less and has a low temperature. The lubricating component improves the wear resistance, anti-decline, and high-temperature friction stability of the brake pad, and simultaneously reduces the noise during work.

The invention relates to the technical field of aluminum bronze, and discloses wear-resistant and corrosion-resistant aluminum bronze for a bearing and a preparation process of the wear-resistant and corrosion-resistant aluminum bronze. The preparation process comprises the following steps: S1, cutting an as-cast aluminum bronze alloy into an appropriate size, and sequentially carrying out surface pretreatment, surface blackening treatment and laser surface quenching on the surface of the as-cast aluminum bronze alloy to prepare a base layer aluminum bronze alloy; s2, the base layer aluminum bronze alloy is sequentially subjected to surface pretreatment and arc ion plating deposition, and a working layer aluminum bronze alloy is prepared; and S3, after laser etching and plasma activation are conducted on the surface of the working layer aluminum bronze alloy, the working layer aluminum bronze alloy is immersed in an organic / inorganic composite solution, vortexing is conducted for 10-15 min, room-temperature ultrasonic treatment is conducted for 15-20 min, then the working layer aluminum bronze alloy is placed at the room temperature for 15-20 min, the working layer aluminum bronze alloy is placed in the environment of 120-125 DEG C to be cured and subjected to ultrasonic cleaning, and the wear-resisting and corrosion-resisting aluminum bronze for the bearing

The invention provides a small-batch stamping part standardized die material design method. According to the method, based on the BUCKINGHAM pi theorem, key physical quantities such as die material hardness, plate hardness, stamping force, plate thickness, tensile strength and fracture toughness are converted into dimensionless indexes, failure criteria such as abrasion, deformation and fracture are established, and a multi-target optimization model of cost and service life is constructed. On the premise that the constraint conditions of abrasion resistance, deformation resistance and fracture resistance are met, medium carbon steel or aluminum bronze is preferentially selected, and high-cost and high-hardness materials are prevented from being used. According to the method, the wear resistance coefficient is calibrated through experiments, the service life prediction is dynamically corrected, and the die cost and development period can be remarkably reduced on the premise of guaranteeing the quality of the stamping part.

The invention discloses an aluminum bronze solid solution aging method which comprises the following steps: S1, carrying out solid solution treatment on an aluminum bronze part at the temperature of 860-880 DEG C, and carrying out oil cooling at the temperature of 40-80 DEG C; s2, oil stains on the aluminum bronze part after oil cooling are removed; and S3, the deoiled aluminum bronze part is subjected to aging treatment at the temperature of 360-470 DEG C and air-cooled to the room temperature. The method has the advantage that the hardness of the product is controlled to be HB170-200.

The invention discloses an aluminum bronze casting forming device with a finished product detection function, and relates to the technical field of alloy casting, the casting forming device comprises a smelting furnace and a casting furnace, a transfer crucible is arranged at an outlet of the smelting furnace, a transfer support is arranged between the smelting furnace and the casting furnace, and a transfer manipulator and a transfer track are arranged on the transfer support; the casting furnace is provided with a forming mold and a receiving nozzle, the receiving nozzle is provided with a buffer seat, the forming mold is communicated with the receiving nozzle, the forming mold is provided with an air cooling assembly, the forming mold is internally provided with a guide assembly, the guide assembly is in sliding connection with the forming mold, and the bottom end of the forming mold is provided with a demolding arm; a capturing assembly and a cleaning disc are arranged on the demolding arm, a detection table is arranged on the transfer support, a detection assembly is rotationally connected to the detection table, and the detection assembly is electrically connected with the guide assembly through a wire.

This invention discloses an aluminum bronze casting forming device with an attached finished product inspection function, relating to the field of alloy casting technology. The casting forming device includes a melting furnace and a casting furnace. A transfer crucible is provided at the outlet of the melting furnace. A transfer support is provided between the melting furnace and the casting furnace. A transfer robot and a transfer track are provided on the transfer support, with the transfer robot and the transfer track slidably connected. A forming mold and a receiving nozzle are provided on the casting furnace. A buffer seat is provided on the receiving nozzle. The forming mold and the receiving nozzle are connected. An air-cooling component is provided on the forming mold. A guiding component is provided inside the forming mold and slidably connected to the forming mold. A demolding arm is provided at the bottom of the forming mold. A capturing component and a cleaning disc are provided on the demolding arm. An inspection platform is provided on the transfer support. An inspection component is rotatably connected to the inspection platform. The inspection component is electrically connected to the guiding component via a wire. This invention enhances the toughness of the casting and provides forming guidance.

The application discloses a preparation method of high-hardness wear-resistant aluminum bronze alloy and belongs to the technical field of metal materials. The method is characterized by accurately controlling the content of aluminum to be 8.5-10.5%, the content of iron to be 3.0-5.0%, the content of nickel to be 2.0-4.0%, the content of manganese to be 0.8-1.5%, the content of silicon to be 0.1-0.4%, the content of titanium to be 0.05-0.20% and the content of zirconium to be 0.03-0.15%, and combining magnetic field assisted directional solidification and multi-stage heat treatment to realize the synergistic strengthening of beta' martensite and fine dispersed phase in a single matrix. The obtained alloy has a Vickers hardness of greater than or equal to 320HV, a wear rate of less than or equal to 2.5*10-6 mm3 / (N*m), an elongation of greater than or equal to 8%, and high hardness, high wear resistance and good plasticity and toughness. The application aims at solving the problems of insufficient reliability, uneven structure and industrialization difficulty caused by the dependence on surface coating or the introduction of endogenous hard phase in the prior art.

The utility model provides a high-strength low-friction wind power independent variable pitch bearing retainer which comprises a retainer body, the retainer body is of a metal arc blocky structure, and first oil grooves are formed in the inner wall and the outer wall of the retainer body; a plurality of through pockets for accommodating rolling bodies are formed in the thickness direction of the retainer body; the retainer is reasonable in design structure, the retainer is made of low-carbon steel metal instead of traditional nylon, the overall structural strength of the retainer can be improved, the problem that the retainer is prone to deformation or damage during working is solved, and the service life of the retainer is prolonged. The laser cladding layers are arranged on the inner walls of the pockets and the inner wall and the outer wall of the retainer body through the laser cladding technology, the laser cladding layers are made of aluminum bronze, the laser cladding layers made of the aluminum bronze can make contact with a rolling body and a ferrule, and therefore the friction force of the contact portions can be reduced, and the service life of the rolling body is prolonged. And the problem of abrasion of the retainer, the rolling body and the ferrule at the contact part can be reduced.

The present invention belongs to the technical field of thermal processing of copper alloy materials, and specifically relates to a heat treatment method for achieving ultra-high strength of QAl11-6-6 aluminum bronze alloy, characterized by comprising the following main steps: 1) cutting extruded or centrifugally cast QAl11-6-6 aluminum bronze alloy tubes and bars into fixed lengths or machining them into parts, holding them at a temperature of 0.5 to 2.0 hours for a first high-temperature heat treatment, and immediately quenching and cooling them in room temperature water after being removed from the furnace; 2) holding them at a temperature of 2 to 4 hours for a second high-temperature heat treatment, and air-cooling them after being removed from the furnace; 3) holding them at a temperature of 2 to 4 hours for a low-temperature heat treatment, and air-cooling them after being removed from the furnace; and 4) performing another electric pulse treatment at 500°C for 1 to 8 minutes, followed by air cooling. The QAl11-6-6 aluminum bronze tube, bar or machined parts prepared by the special heat treatment method of the present invention have a tensile strength of 1116 MPa, a yield strength of 1021 MPa, and an elongation of 5.9%. They can replace imports and are used to manufacture key structural parts under special working conditions such as heavy load, heavy pressure, severe wear, and severe corrosion.

The present invention provides an aluminum bronze alloy excellent in both of the corrosion resistance (suppression of precipitation of a β phase) and the wear resistance (security of the hardness of the metal at a certain level or higher) and capable of being stably manufactured. The present invention also provides a sliding member using the aluminum bronze alloy and having the corrosion resistance, the wear resistance and the stability during manufacture. The aluminum bronze alloy of the present invention is composed of copper (Cu), aluminum (Al), nickel (Ni), iron (Fe) silicon (Si), and inevitable impurities, and has a structure composed of an α phase, a coarse Fe—Si-based intermetallic compound of 1 μm or larger, an infinitesimal κ phase different from the Fe—Si-based intermetallic compound, and a trace amount of inevitable phases.

The invention discloses a high-manganese aluminum bronze alloy and a preparation method thereof, and belongs to the technical field of alloy materials, and the high-manganese aluminum bronze alloy comprises the following components in percentage by mass: 10%-12.5% of aluminum, 5.5%-7.5% of manganese, 4.5%-6% of iron, 4%-6% of nickel, 0.05%-0.15% of selenium, 0.005%-0.02% of boron, 0.05%-0.15% of rare earth elements and the balance of copper and inevitable impurities. According to the high-manganese aluminum bronze alloy and the preparation method thereof, selenium, boron and rare earth elements cooperate with basic alloy components, the mechanical property of the alloy is guaranteed by means of the dispersion strengthening effect, and the high-manganese aluminum bronze alloy is prepared by reasonably regulating and controlling the proportion of basic elements such as aluminum, manganese, iron and nickel and combining copper coating treatment of hexagonal boron nitride and precise preparation process parameters. The problems that traditional aluminum bronze is large in cutting force, cutter abrasion is serious, and cutter adhesion and scrap accumulation exist are effectively solved, the machining efficiency and the machining quality are greatly improved, and the production cost is reduced.

The application provides a method for preparing an aluminum-bronze-based composite material by remelting dilution and the aluminum-bronze-based composite material, and the method comprises the following steps: putting an aluminum-based composite material into a copper melt to obtain the aluminum-bronze-based composite material. The mass ratio of the aluminum-based composite material to the copper melt is 2-8:98-92. The aluminum-based composite material comprises 2-10 wt% TiB2 particles and the balance of aluminum. Compared with the in-situ self-formation method in the copper melt, the method for preparing the aluminum-bronze-based composite material by remelting dilution can greatly reduce the agglomeration of the particles, so that the tensile strength and elongation of the prepared aluminum-bronze-based composite material are significantly improved. In addition, the application simplifies the smelting process, has the advantages of energy saving, high efficiency, green and no pollution.

The present invention relates to a process for producing a bearing component (44) wherein a main body (50) having an at least partially roughened surface (52, 54) is provided and an at least partial and multilayered metal coating (34) is applied by means of a cold spraying process. A first layer (40) consists at least virtually entirely of a nickel bronze or an aluminium bronze and at least one further layer (42n) has a solid lubricant added to the plain bearing material.

This utility model relates to a coated cover plate and a fixture for testing it. The coated cover plate includes: a glass substrate as the base for the coating layer; a magnesium fluoride coating layer, a tin bronze alloy coating layer, and a Ni-B-Si alloy coating layer sequentially coated on the glass substrate from the outside to the inside; and a thermochromic ink screen printing layer, an aluminum bronze alloy layer, and a niobium carbide layer sequentially coated from the inside to the outside. The thickness of the magnesium fluoride coating layer is 50-100 nm; the thickness of the tin bronze alloy coating layer is 20-30 nm; the thickness of the Ni-B-Si alloy coating layer is 20-30 nm; the thickness of the glass substrate is 0.5-3 mm; the thickness of the thermochromic ink screen printing layer is 8-12 μm; the thickness of the aluminum bronze alloy layer is 30-40 nm; and the thickness of the first niobium carbide layer is 15-25 nm. This novel cover plate coating layer structure, through a carefully designed multi-layer coating technology, achieves a comprehensive improvement in the performance of the glass cover plate.

The utility model relates to the technical field of aluminum bronze polishing, in particular to a multi-position polishing unit for aluminum bronze surface treatment, which comprises a polishing machine body, a protective plate is mounted on the periphery of the polishing machine body, a discharge port for discharging is arranged on one side of the protective plate, a feed port for feeding is arranged on the other side of the protective plate, and the protective plate is mounted on the protective plate. A grinding assembly used for grinding is arranged in the grinding machine body. The grinding assembly comprises a lifting plate capable of ascending and descending, a two-way lead screw is installed at the bottom of the lifting plate, a sliding plate is arranged outside the two-way lead screw through a lead screw sleeve, and a side grinding roller is installed on one side of the sliding plate. Supporting frames are installed at the front end and the rear end of the two-way lead screw correspondingly, and a lead screw motor is fixedly installed on one set of supporting frames. According to the side edge grinding machine, the two side edge grinding machines can be driven to move through the two-way lead screws, the distance between the side edge grinding machines can be reduced, and therefore the side edge grinding machine can be suitable for side edge grinding of small-size aluminum bronze workpieces.

This application relates to the field of alloy materials technology, and provides a method for refining the grain size of aluminum bronze alloys and an aluminum bronze alloy. By adding a boron-iron alloy for modification treatment during the smelting process of aluminum bronze raw materials, using iron as a carrier, it is easier for the alloy to integrate into the aluminum bronze and form δ-particles within it, thus refining the grain size. Compared to other modifiers applied to aluminum bronze, the alloying effect is better. Furthermore, by using a casting cavity with a chilling material for pouring the molten aluminum bronze, the supercooling of the casting is increased, further improving the grain size of the material. In the post-treatment process after the casting solidifies, to inhibit further grain growth and obtain specific phases and structures, rapid cooling is performed within a temperature range of 500-700°C, significantly strengthening the matrix structure.