27 results about "Aluminium bronze" patented technology

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 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 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 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 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 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 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 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.

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.

This utility model relates to the field of friction brake pad technology and discloses a friction brake pad suitable for the braking device of a monorail locomotive, including a friction brake pad in contact with the track web and a brake seat fixedly connected thereto. The friction brake pad is made of beryllium copper alloy or aluminum bronze, and its surface is treated at high temperature to form an oxide composite layer. Rare earth elements are added to refine the grain, resulting in a friction coefficient fluctuation of less than ±5% under both dry and wet conditions. A 0.5mm wide parallel groove is formed on the braking surface, which, together with the ventilation groove in the brake seat, constitutes a dual heat dissipation system. A preferred design adopts a modular approach, dividing the brake pad into four sector-shaped units connected by corrugated spring steel sheets. Each module is equipped with an independent hydraulic control mechanism, and the piston rod end uses a spherical hinge to achieve angle self-adaptation. This invention solves the problems of large friction coefficient fluctuation and poor heat dissipation in traditional brake pads, and has advantages such as stable braking performance, extended service life, and convenient maintenance. It is particularly suitable for monorail systems with frequent braking.

The invention discloses a replacement copper plating solution for an iron-containing aluminum bronze surface and a use method of the replacement copper plating solution. According to the method, the aluminum bronze sample to be treated only needs to be subjected to oil removal and rust removal and then is soaked in the replacement copper plating solution, and then a uniform metal copper layer with good binding force with a base body can be generated on the surface. The replacement copper plating solution provided by the invention is a blue and stable transparent solution in appearance, and the steps required for preparing the metal copper layer are simple. A copper plating layer obtained by using the replacement copper plating solution provided by the invention is uniform and has good binding force with a substrate.

To provide an aluminum bronze alloy excellent in both corrosion resistance (suppression of precipitation of a β-phase) and wear resistance (collateral over a certain level of hardness of metal) and capable of stable manufacturing, and a slide member using the aluminum bronze alloy that has corrosion resistance, wear resistance and stability during manufacture.SOLUTION: An aluminum bronze alloy of the present invention is an aluminum bronze alloy consisting of copper (Cu), aluminum (Al), nickel (Ni), iron (Fe), silicon (Si) and inevitable impurities, and has an α phase, a coarse Fe-Si intermetallic compound of 1 μm or more, a fine κ phase different from the Fe-Si intermetallic compound, and a trace amount of an unavoidable phase.SELECTED DRAWING: Figure 2

The utility model discloses a tundish for vacuum pouring of aluminum bronze filter residues, which belongs to the technical field of metallurgy and comprises a tundish body, the tundish body is positioned in a vacuum melting chamber, a base is arranged in the tundish body, the tundish body is provided with a first unplugging device, the first unplugging device is connected with a second unplugging device, and the second unplugging device is connected with a third unplugging device. The plug opening device II extends out of the vacuum melting chamber; the second plug opening device is used for controlling the first plug opening device to move, and then opening and closing of the base are achieved. A mold is arranged in the vacuum melting chamber, located on the lower portion of the tundish body and corresponds to the opening in the bottom of the base. According to the vacuum casting device, the whole casting process is carried out in a vacuum environment, the problems of oxidation slag inclusion and excessive gas in copper liquid can be effectively solved, the purity of the copper liquid is greatly improved, and aluminum bronze castings with higher quality are produced.

The application relates to the field of wind power bearing lubrication, and discloses a clad copper-based composite coating material, a preparation process and application of the clad copper-based composite coating material, which comprises the following components: 60-80% of aluminum bronze or tin bronze powder and 20-40% of a lubricating phase, wherein the lubricating phase is formed by mixing at least two kinds of powders selected from graphite, polyphenyl fat, bentonite, CaF2 and MoS2. The multiple-component lubricating phase is used to realize synergistic lubrication, the self-lubricating property of the coating is remarkably improved, and the friction coefficient is reduced; the lubricating phase is coated by the copper-based alloy powder, decomposition of the lubricating phase in the process of super-high-speed laser cladding is avoided, the functionality of the lubricating phase is ensured, and the service life of the coating is remarkably improved; and the technical problems of poor self-lubricating property and low bonding strength of existing sliding bearings in the field of wind power are solved.

A cleaning tool for ported firearm barrels with integrated suppressors is disclosed. The tool comprises a cylindrical brush housing with an inner cavity to accommodate a barrel brush insert featuring radially extending bristles for removing carbon deposits and debris. A retaining washer and clip secure the brush insert within the housing. The assembly includes a cylindrical handle with internal threading to engage the housing's threaded neck, and an externally knurled surface for improved grip. The brush insert is interchangeable, allowing various cleaning media such as stainless steel, alloy steel, Aluminum, Bronze, Nylon, Brass, Plastic, Polypropylene, rubber, or other metals. The design eliminates the need for firearm disassembly and avoids reliance on the suppressor as a cleaning component, enhancing user safety and preserving firearm integrity. This tool facilitates efficient maintenance of firearms with integrally suppressed systems, promoting reliability and extending the lifespan of the firearm.

The invention discloses a novel out-opening window pressing line strengthening structure which comprises a window frame, a sealing gasket is fixedly connected to the upper surface of the window frame, glass is movably connected to the upper surface of the sealing gasket, a plurality of water drainage holes are formed in the upper surface of the window frame and the upper surface of the sealing gasket, and a plurality of limiting strips are fixedly connected to the upper end of the outer surface of the window frame. The outer surface of the limiting strip is sleeved with a pressing line body, a first fixing groove is formed in the inner side of the pressing line body, a sealing strip is movably connected to the inner surface of the first fixing groove, and a plurality of second fixing grooves are formed in the left side and the right side of the window frame and the pressing line body. The sealing strip is arranged on the inner side of the pressing line body, the stability and the sealing performance of glass can be improved, the fixing nails are arranged on the outer side of the connecting piece, the pressing line body can be conveniently fixed, and the strength and the corrosion resistance of the fixing assembly can be greatly improved through the arrangement of the aluminum bronze layer, the stainless steel layer, the tungsten alloy layer and the hastelloy alloy layer.

The application discloses a verticality detection device for producing free-cutting aluminium bronze rods, which comprises a supporting seat and a piece to be detected, a vertical piece capable of ascending and descending is penetrated through the supporting seat, clamping pieces are installed on the top and tail of the piece to be detected, the clamping piece of the tail can rotate in the supporting seat through a shaft, a limiting piece which contacts with the bottom of the clamping piece of the tail is installed in the supporting seat, the limiting piece can keep the clamping piece of the tail in a horizontal state when it is reset after rotating clockwise, the piece to be detected is pulled up by a pull line mechanism, so that the two clamping pieces of the piece to be detected are on the same longitudinal line, the laser emitted by the laser head on the clamping piece of the top is projected on the clamping piece of the bottom, and whether the laser projection point on the clamping piece of the bottom is projected or deviated is observed to determine the verticality of the piece to be detected.

The utility model provides a kind of multifunctional quenching device for aluminium bronze alloy heat treatment, belong to quenching device field, including support frame, hoisting assembly and cleaning component;Quenching box is placed in the inside of support frame, and the inside of quenching box is equipped with basket;The utility model: the top of support frame is equipped with mounting cover around, mounting cover is equipped with fume collecting cover inside, and negative pressure fan installed at the top of fume collecting cover makes after work that negative pressure is generated, and the negative pressure generated in fume collecting cover is convenient for airflow to flow to fume collecting cover inside, when high-temperature oil fume steam generated during quenching is inhaled into fume collecting cover inside, larger particle smoke dust particle is filtered by coarse filter screen inside fume collecting cover, and after filtration, flue gas is adsorbed by activated carbon filter screen, so that the fine grease particle in flue gas is reduced, so that the oil fume steam generated is filtered and handled, so that the scene environment satisfies operation, and personnel body damage is reduced.

The invention discloses nickel-aluminum bronze double-suction impeller casting equipment and technology, and relates to the technical field of double-suction impeller casting machining, the casting equipment comprises a closed box body, and a smelting furnace is arranged in the closed box body; a pouring opening is formed in the smelting furnace, and a rotating module is arranged in the closed box body and used for driving the smelting furnace to rotate; a casting box is fixedly arranged on the outer side of the closed box body, and a through groove communicating with the casting box is formed in the side wall of the closed box body; a flow guide box is fixedly arranged in the through groove, and a flow guide channel is formed in the flow guide box. A filter is arranged in the casting box, and filter holes are evenly formed in the filter and used for filtering casting liquid conveyed by the flow guide channel. The device further comprises a replacement module used for replacing the filter in the casting box. After one-time casting is completed, the filter can be automatically replaced through the replacement module, the casting box does not need to be manually opened for manual replacement, the replacement efficiency is improved, and the safety of the replacement module is higher.

The invention discloses a nickel-aluminum bronze alloy with high mechanical property as well as a preparation method and application of the nickel-aluminum bronze alloy. The nickel-aluminum bronze alloy comprises the following elements in percentage by mass: 8.5-10.0 wt% of Al, 4.0-5.0 wt% of Fe, 4.0-5.0 wt% of Ni, 0.8-2.5 wt% of Mn, 0.2-0.6 wt% of Cr, 0.2-0.8 wt% of Ti, less than or equal to 1.0 wt% of impurity elements in total and the balance of copper. The nickel-aluminum bronze alloy has the beneficial effects that the Cu-Cr intermediate alloy and pure Ti are added into the nickel-aluminum bronze alloy, the Cu-Cr intermediate alloy and the pure Ti are separated out in the solidification process to serve as heterogeneous nucleation cores, the grain refining effect is achieved, the cores also have the precipitation strengthening effect at the same time, the comprehensive performance of the alloy is improved, the strength and hardness of the alloy are improved on the premise that the ductility is guaranteed, and the service life of the alloy is prolonged. Therefore, the alloy has relatively high comprehensive mechanical properties.