14 results about "Zinc diffusion" patented technology

This utility model relates to the field of metal material processing and treatment, and discloses a dual-purpose induction furnace for iron softening and zinc diffusion treatment, comprising: a furnace body; a top cover for sealing the furnace body, with a sealing rod fixedly connected to the bottom of the top cover; a bottom plate for the furnace body, with a base at the bottom of the bottom plate, a water outlet groove penetrating the bottom plate at the outermost side of the bottom plate, an annular sealing ring and a cover plate at the top of the water outlet groove, the sealing ring being located at the top of the cover plate, and an elastic element fixedly connected to the bottom of the cover plate; when the top cover is closed, the sealing rod contacts the sealing ring; an annular extrusion groove is formed at the bottom opening of the water outlet groove on the base, with a sealing ring fixedly connected to the top of the extrusion groove. In this utility model, the sealing ring and cover plate at the top of the water outlet groove and the sealing ring at the bottom of the water outlet groove simultaneously seal the water outlet groove, creating a sealing effect on both the upper and lower sides of the water outlet groove, improving the sealing performance of the furnace body and avoiding problems caused by poor sealing of the discharge port.

The utility model provides a kind of for powder zinc infiltration process anti -blocking workpiece cleaning equipment, it is related to cleaning equipment technical field, and it includes: cleaning tank, multiple cleaning tanks are provided in cleaning tank, and multiple cleaning tanks are arranged in echelon shape;Water inlet pipeline, water inlet pipeline is communicated with the bottom surface of cleaning tank, and water is supplied to cleaning tank by the bottom of cleaning tank;Lifting adjusting part, lifting adjusting part is installed on cleaning tank;Loading basket, loading basket is detachably set in the output end of lifting adjusting part, and loading blue is used to load zinc infiltration workpiece, and reciprocating lifting cleaning in cleaning tank is driven by zinc infiltration workpiece through lifting adjusting part.The utility model washes by the mode of bottom water inlet and top drainage, effectively avoids the blockage problem caused by filter residue deposition, and in addition, reciprocating lifting cleaning in cleaning fluid is driven by zinc infiltration workpiece with lifting adjusting part, can greatly improve cleaning effect, with the characteristics of simple structure, convenient operation.

The natural gas burner for the zinc impregnation furnace comprises an outer cylinder, an inner cylinder, an air sheet, an ignition electrode and a horn mouth, the outer cylinder is sleeved on the inner cylinder, the head of the inner cylinder is connected with the air sheet, the air sheet is located at the end of the outer cylinder, the side face of the end, away from the air sheet, of the outer cylinder is connected with an air inlet pipe, and the side face of the end, away from the air sheet, of the inner cylinder is connected with a natural gas inlet pipe. The horn mouth is connected with the outer barrel at the wind blade end of the outer barrel; chutes are uniformly distributed on the circumference of the wind blade and penetrate through the top surface and the bottom surface of the wind blade, and a natural gas hole is formed in the wind blade and is used for spraying natural gas; ignition electrodes are arranged on the outer sides of the wind blades and comprise a grounding electrode and two central electrodes, the grounding electrode is located in the center of the wind blades, and the two central electrodes are symmetrically located on the two sides of the grounding electrode. By changing the structure of the natural gas burner, the flame jetted by the natural gas burner is expanded and is contacted with the furnace pipe in a large area, so that the temperature difference in the furnace pipe is small, and the zinc impregnation quality of a workpiece is uniform.

This invention relates to the field of metal-air battery technology, specifically to an alkaline zinc-air battery electrolyte and its preparation method, and an alkaline zinc-air battery. The alkaline zinc-air battery electrolyte comprises an aqueous hydroxide solution, a corrosion inhibitor, and a dendrite inhibitor. Zinc carboxylate salts can inhibit the activity of hydroxide ions in the electrolyte through strong coordination of carboxylate ions, thereby inhibiting the hydrogen evolution side reaction between hydroxide ions and the zinc plate and improving the corrosion resistance of the electrolyte. It can also adhere to the zinc anode surface to form a protective layer, thus achieving excellent corrosion inhibition. Glycine or glutamic acid, acting as a dendrite inhibitor, can chemically adsorb onto the zinc anode, thereby optimizing zinc diffusion and nucleation behavior. Therefore, the alkaline zinc-air battery electrolyte of this invention can improve the utilization rate of the zinc anode, thereby extending its lifespan, and can inhibit the growth of zinc anode dendrites during battery charging and discharging, further extending the anode's service life.

A home appliance according to one embodiment of the present disclosure may comprise a housing and a heat exchanger disposed inside the housing. The heat exchanger can include: a first pipe providing a refrigerant flow path and including aluminum (Al); a second pipe, which is adjacent to the first pipe, includes an Al material, and accommodates a sensor; and filler metal for coupling the first pipe and the second pipe to each other. A portion of the first pipe and / or a portion of the second pipe can include a zinc diffusion layer. The potential difference between random constituent elements from among the filler metal, the first pipe and the second pipe can be 50 mV or less.

The utility model relates to the technical field of metal workpiece surface treatment, and particularly discloses a workpiece cleaning device for a powder sherardizing process, which comprises a support box, a mounting frame is arranged above the support box, fixing frames are respectively fixed on two sides of the mounting frame, a storage box is fixed at the bottom of each fixing frame, and the storage box is connected with the support box. Adjusting frames are fixed to the two sides of the supporting box correspondingly, adjusting motors are fixed to one sides of the adjusting frames, supporting plates are fixed to the tops of the moving blocks, a cleaning brush cylinder is arranged between the supporting plates, and a servo motor is fixed to one side of the supporting plate located on one side. The output end of the servo motor is fixedly connected with one end of a cleaning brush cylinder; through flushing and wiping, the workpiece can be cleaned more cleanly and tidily, and dust, pollutants and the like on the surface of the workpiece can be effectively removed, so that the subsequent powder sherardizing effect is better, and the product quality of the workpiece is improved.

The application provides a surface treatment method of a pull rivet assembly, which comprises the following steps: forming a zinc-aluminum coating on a pull rivet and a sleeve ring through a multiple film forming mode; wherein the material of the pull rivet is medium-carbon alloy structural steel, the material of the sleeve ring is low-carbon steel, the zinc content in the zinc-aluminum coating is 85%-95%, and the aluminum content in the zinc-aluminum coating is 5%-15%; and the zinc-aluminum coating is subjected to heat diffusion treatment to form an iron-zinc-aluminum alloy protective layer on the surface of the pull rivet and the sleeve ring. In the technical scheme, the zinc-aluminum coating is formed on the pull rivet and the sleeve ring through the multiple film forming mode, and the heat diffusion treatment mode is adopted, so that the zinc diffuses into the pull rivet and the sleeve ring, and the iron of the pull rivet and the sleeve ring diffuses into the zinc-aluminum coating, thereby forming the iron-zinc-aluminum alloy protective layer, improving the structural strength of the protective layer on the outer side of the pull rivet and the sleeve ring, improving the corrosion resistance, and improving the use effect of the pull rivet and the sleeve ring.

A home appliance may include: a housing; and a heat exchanger disposed inside the housing, the heat exchanger including: a first pipe providing a flow path along which a refrigerant is flowable, and including aluminum, a second pipe adjacent to the first pipe, the second pipe including aluminum, and configured to receive a sensor, and a filler metal configured to couple the first pipe and the second pipe together, At least of a portion of the first pipe or a portion of the second pipe includes a zinc diffusion layer. An electrical potential difference between any two of the filler metal, the first pipe, and the second pipe is 50 mV or less.

The utility model provides a pulling rivet assembly. The pulling rivet assembly comprises a pulling rivet and a lantern ring arranged on the pulling rivet in a sleeving mode. Wherein the pulling rivet is made of medium-carbon alloy structural steel, and the lantern ring is made of low-carbon steel; the pulling rivet comprises a rivet core rod and a first iron-zinc-aluminum alloy protection layer wrapping the rivet core rod. The first iron-zinc-aluminum alloy protection layer is fixedly connected with the rivet core rod in a thermal diffusion manner; the lantern ring comprises a lantern ring body and a second iron-zinc-aluminum alloy protection layer wrapping the lantern ring body. The second iron-zinc-aluminum alloy protection layer is fixedly connected with the lantern ring body in a thermal diffusion mode. According to the technical scheme, zinc is diffused into the pulling rivet and the lantern ring by adopting a thermal diffusion treatment mode, and iron of the pulling rivet and the lantern ring is diffused into the zinc-aluminum coating, so that the iron-zinc-aluminum alloy protection layer is formed, the structural strength of the protection layer on the outer side of the pulling rivet and the outer side of the lantern ring is improved, the corrosion resistance is improved, and the service life of the pulling rivet and the lantern ring is prolonged. And the using effect of the pulling rivet and the lantern ring is improved.

A heat exchanger, a manufacturing method thereof, and an air conditioner having same are provided. The heat exchanger comprises: a tube through which a refrigerant can flow; and a plurality of heat exchange fins coupled to the tube so as to be in contact with the outer surface of the tube, wherein the tube and the heat exchange fins include an aluminum alloy, and the tube includes a zinc diffusion layer.

The invention belongs to the technical field of surface modification of high-performance electronic plates, and particularly relates to a preparation process for improving the straightness of an aluminum alloy electronic plate, which comprises the steps of cast rolling, film coating and pressure-assisted diffusion welding, warm rolling, cold finish rolling and stretching, bending and straightening. Through continuous process design of cast rolling, zinc-coated diffusion welding, warm rolling, cold finish rolling and straightening, an electronic board product which is ultrahigh in straightness, ultralow in surface roughness, uniform in mechanical property and excellent in solderability and corrosion resistance is prepared; the processes of rewinding, annealing, transportation, surface treatment and the like in the traditional process are greatly reduced, and the energy consumption is obviously reduced; and high-viscosity rolling oil with an optimized formula is adopted, so that extra stress caused by multiple passes is avoided, and the dimensional precision and the surface performance of the product are further guaranteed.

The invention relates to metal surface treatment, in particular to a chromium-free composite protective coating for the surface of a zinc impregnation layer and a preparation method of the chromium-free composite protective coating. Deionized water is used for adjusting the pH value, a silane coupling agent is added under stirring for hydrolysis, modified silica sol, rare earth salt and a water-soluble photoinitiator are added and evenly mixed, and a chromium-free passivation solution is obtained; the method comprises the following steps: dip-coating a pre-treated sherardizing workpiece in a chromium-free passivation solution to form a wet film, and converting the wet film from a free liquid state into a gel-state passivation film with reaction activity through a pre-drying procedure; applying a water-based sealing agent on the gel-state passivation film; the workpiece covered with the passivation film and the sealing agent is subjected to ultraviolet irradiation for several times, the sealing agent is cured at the same time, a cross-linking reaction is initiated at an interface, and an interpenetrating polymer network structure with gradient transition is formed. And meanwhile, the corrosion resistance, the adhesive force, the chemical stability and the like reach or even exceed those of a chromium passivation technology.

This application belongs to the field of metal woven mesh processing technology and discloses a zinc-diffusion fixture for metal woven mesh, comprising: a main frame, with a placement area formed on the inner side of the main frame for placing the product to be zinc-diffused, a partition for supporting the product provided in the placement area, and multiple first through holes for zinc powder to pass through on the inner sidewalls of the placement area, and multiple second through holes for zinc powder to pass through on the partition; and a pressure cap assembly for detachably connecting to the main frame to fix the product in the placement area. The zinc-diffusion fixture for metal woven mesh of this application improves the flowability of zinc powder and the uniformity of zinc diffusion, avoids zinc powder accumulation in the fixture, and improves production efficiency and product yield.

This invention belongs to the field of zinc powder production technology, specifically a production equipment and method for zinc powder used in zinc diffusion processes. Addressing the problems of zinc powder oxidation and the inability to screen the produced zinc powder in existing technologies, the invention includes a base frame with a bottom box fixedly installed on top. Two electric push rods are symmetrically fixedly installed on the inner bottom wall of the bottom box, with their output shafts extending to the top of the bottom box and fixedly fitted with the same sealing ring. This invention allows the zinc powder or zinc vapor to be processed in a relatively closed environment during the cooling process to form zinc powder, thus avoiding oxidation. Furthermore, after zinc powder production, it enables sorting, facilitating convenient classification and packaging during practical use.