354 results about "Iron–nickel alloy" patented technology

Mold tooling formed of suitable iron-nickel alloys and provided with a hard electroless nickel coating on the mold cavity surface are useful for high volume production of carbon fiber reinforced, polymer matrix, composites. The iron and nickel alloy provides thermal expansion properties for the molding of dimensionally accurate parts. The nickel alloy coating provides a durable surface, without adversely affecting the expansion properties of the mold, and remains adherent to the base metal during the repeated thermal cycling encountered in high volume production of substantially identical molded carbon composite parts.

The invention belongs to the field of magnetic material, relating to an electromagnetic shielding material and the making method thereof. The invention is a composite metallic film formed on a conductive substrate by multiple deposition in the water solution, and the obtained composite metallic film is 1-100 mum thick, and each layer of the composite metallic film is 1.1-99.9 mum thick, and the combination between the layers of the composite film is by chemical bond, and each layer is layered. The substrate can be stainless steel, copper plate, Ti plate, Al plate or one of the corrosion-resistant alloy plates, and also made of conductive glass, conductive plastics, polymer high molecular material, or other material; the composite metallic film comprises two or above different metallic film layers; each metallic film layer can be of copper, iron, iron-nickel alloy, nickel-cobalt alloy, iron-cobalt alloy or iron-cobalt-nickel alloy. The invention can shield the frequencies between 50Hz and 100 Hz and the shielding efficacy reaches above 70dB.

The invention relates to a method for enhancing blade surface of a metal hydraulic turbine runner by combining electrical sparkle deposition and plasma cladding. The method can be used for effectively solving the problems of poor surface hardness, wear resistance, corrosion resistance, shock resistance and the like of a blade of the hydraulic turbine runner and prolonging of the service life of the metal hydraulic turbine runner. The method comprises the following steps: cladding the blade surface of the hydraulic turbine runner with alloy powder by using inoxidizability plasma beams so as to form an alloy coating, and then depositing WC (Wolfram Carbide) ceramic hard alloy by using electrical sparkles on the basis of the plasma cladding coating so as to form an electrical sparkle deposition and plasma cladding combined composite coating. The method is simple and practicable; the formed electrical sparkle deposition and plasma cladding combined composite coating is firmly bonded with a matrix and is large in thickness; a bade is high in hardness, good in compactness and wear-resisting property and long in service life; the composite coating gives play to the advantages of low cost, good wear-resistant anti-corrosion performance, high hardness and strength and excellent wear resistance of iron-nickel alloy.

The invention discloses a steel-based iron-nickel alloy diffused-type solid self-lubricating bearing and a manufacturing method thereof. The steel-based iron-nickel alloy diffused-type solid self-lubricating bearing is shaft sleeve-shaped; the exterior of the shaft sleeve is a steel jacket; and the inner wall of the shaft sleeve is a wear-resistant layer formed by compacting and sintering iron-nickel alloy mixed powder. The steel-based iron-nickel alloy diffused-type solid self-lubricating bearing is characterized in that the iron-nickel alloy mixed powder comprises 15-20% of nickel, 35-40% of iron, 5-8% of tin, 0.5-1.0% of titanium powder, 1-4% of molybdenum sulfide, 1-3% of aluminum oxide, 1-4% of graphite, 1-2% of zinc stearate and the balance of copper by weight. The manufacturing method of the self-lubricating bearing comprises the following steps of: manufacturing a wear-resistant blank, i.e. blending and stirring the raw materials and carrying out compression molding; manufacturing the steel jacket; and manufacturing the steel-based iron-nickel alloy diffused-type solid self-lubricating bearing, i.e. placing the wear-resistant blank in the steel jacket for vacuum sintering, and carrying out vacuum oil absorption, fine manufacturing and secondary vacuum oil absorption to obtain a finished product. The steel-based iron-nickel alloy diffused-type solid self-lubricating bearing has the characteristics of strong impact resistance, high carrying capacity, wear resistance, low friction coefficients, corrosion resistance and self-lubrication.

The invention relates to a matrix of a diamond product and a plating process thereof. The matrix is characterized in that the matrix consists of electroplated iron or iron-nickel alloy. Electroplating solution adopted by the plating process comprises ferrous sulfate and other sulphates, ferrous chloride and other chlorides, or nickel sulfate, the ferrous sulfate and the chloride. The matrix has the beneficial effects that all of the electroplated iron, the iron-nickel alloy containing 30 to 60 percent of iron and other ferroalloy have higher hardness (HRC35-50) and good bezel setting property for the diamond. Though the matrix is worse than electroplated nickel in wear-resisting property, the matrix is in favor of the exposure of the diamond product and improves the sharpness of the diamond product. Therefore, the matrix is especially suitable for manufacturing the drill pit and the sharper of the diamond. As the cheap iron replaces the expensive nickel, the manufacturing cost of the electroplated diamond product is greatly reduced.

The invention discloses an ultra-thin continuous winding wave-absorbing material. The wave-absorbing material is prepared by the following steps: A, preparing an absorbent: carrying out annealing treatment on an alloy material, wherein the alloy material is one or more of an iron-nickel alloy flake powder, an iron-cobalt alloy flake powder, an iron-silicon-aluminum alloy flake powder or a carbonyl iron flake powder; B, selecting one or more of rubber, plastics or a thermoplastic elastomer polymer material as a base material; C, mixing: mixing according to the 1-9 mass ratio of the absorbent to the polymer base material to obtain a mixed compound; D, preforming: pressing the mixed compound into sheets with the thickness less than 0.5 mm; E, rolling and winding: successively and continuously putting the sheets obtained in step D in a calender to obtain the wave-absorbing material with the thickness less than 0.3 mm. The wave-absorbing material has a high-permeability real part and a low-permeability imaginary part at the frequency point of 13.56 MHz, is simple in manufacturing technique and easy to cut and use, and is mainly applied to high-frequency metal-resistant electronic tags and mobile payment.

A composite FeNi alloy/Cu wire 4J50/Cu is made of the copper rod cored FeNI alloy ingot through vacuum high-temp treating, squeezing at 900-950 deg.C, cold drawing and heat treating. Its advantages are high electric and thermal conductivities, better weldability, and good sealing performance to glass and ceramics.

The invention belongs to the technical field of electroplating, and relates to a preparation method for a carbon fiber electroplating iron-nickel alloy. The preparation method comprises the following steps of performing degumming oxidation treatment on a carbon fiber bundle; preparing an electroplating solution, namely weighing 60 to 90 parts by weight of NiSO4.6H2O, 10 to 30 parts by weight of NiCl2.6H2O, 60 to 80 parts by weight of FeSO4.7HO, 15 to 20 parts by weight of C6H5Na3O7.2H2O, 1 to 3 parts by weight of C7H5NO3S and 10 to 30 parts by weight of H3BO3 respectively, dissolving the components in a proper amount of ultrapure water, weighing 0.1 to 0.3 part by weight of C6H5NaO2S, dissolving C6H5NaO2S in a small amount of ultrapure water, uniformly mixing the two solutions, and controlling the pH value to be 3 to 4.5; performing electroplating treatment on the surfaces of carbon fibers. According to the method, the magnetism of the electroplated carbon fibers can be improved by controlling the magnetism.

The invention relates to a method for preparing and separating monodisperse superparamagnetism iron-nickel alloy nano-particle catalyst used for selective hydrogenation. In the method, Ferric acetylacetonate and Nickel acetylacetonate are taken as raw materials, liquid paraffin is taken as reaction medium, trioctyl-phosphine and oleyl amine are taken as stabilizer (also called protecting agent or surface modifier) and polyol is taken as morphology modifier. The product obtained is iron-nickel alloy nano-particle. The method adding magnetic field to assist solvent extraction can separate the iron-nickel alloy nano-particle from the reaction system. The iron-nickel alloy nano-particle can be dispersed into organic solvents again such as chloroform, petroleum ether, and the like, without the generation of precipitation. The nano-particle is used as the catalyst for the selectively hydrogenation of chloro-nitrobenzene, the convention rate of reactants can reach 70 percent and the selectivity thereof is 98 percent.

The invention relates to a micro-alloyed high-strength anti-oxidization iron-nickel alloy gas valve steel material and a preparation method. The material comprises elements such as Ni, Cr, Ti, Al, Mo, Nb, Mn, C, B, Mg, Ta, Ce, Zr, V, W, N, Fe and the like. The material can be used in a working environment with a high temperature, high load, strong oxidization and strong corrosion, is low in nickel content, has good tensile strength, good endurance strength, good fatigue strength and excellent oxidization resistance, good corrosion resistance and good resistance to fuel gas, and can be used for preparing a gas inlet valve and a gas outlet valve of a medium-high-load engine.

The embodiment of the invention discloses a method for preparing an iron-nickel alloy nanocluster-graphene composite material. The method includes the following steps that (1), graphite oxide is added into a first organic solvent to be dispersed; (2), ferric acetylacetonate, nickel acetylacetonate and octadecylamine are added, the mixture is heated to 100 DEG C to 150 DEG C in inertia protective gas, the temperature is kept for 20 min to 50 min, and then the temperature rises till a solution is boiled and flows back, and is kept for 1 h to 5 h; and (3), a second organic solvent is added to suddenly stop the reaction, and reaction products are separated out, washed and dried. The invention further discloses the iron-nickel alloy nanocluster-graphene composite material prepared through the method, and application of the composite material to electromagnetic wave absorption. According to the method, the iron-nickel alloy nanocluster-graphene composite material and the application, graphene is used as a substrate, the iron-nickel alloy nanocluster-graphene composite material is obtained through one-step reduction of a thermal decomposition method, and therefore iron-nickel alloy nanoparticles are protected and dispersed, and the nanometer composite material good in wave absorbing property is obtained.

The present invention relates to an exclusive alloy substrate material for CIGS solar cells. Particularly, the present invention provides a substrate material having a thermal expansion coefficient similar to that of a CIGS layer. The substrate material according to the present invention may prevent damage such as interlayer separation due to differing thermal expansion coefficients from occurring because the substrate material has a thermal expansion coefficient similar to that of the CIGS layer.

The invention discloses cobalt-tungsten-iron-nickel alloy electroplating liquid and belongs to the field of material surface treatment. A formula of the electroplating liquid comprises: 1 to 5 grams/litre of cobalt sulfate, 20 to 60 grams/litre of sodium tungstate, 10 to 50 grams/litre of ferrous sulfate, 20 to 60 grams/litre of nickel sulfate, 10 milliliters/litre of 28 percent oxalic acid, 5 to 15 grams/litre of ammonia sulfate, 20 to 40 grams/litre of a complexing agent, 1 to 8 grams/litre of a stabilizing agent, 2 to 5 milliliters/litre of a brightness additive and 1,000 milliliters of deionized water. The surface of an electroplating layer obtained by using the cobalt-tungsten-iron-nickel alloy electroplating liquid has no microcrack and has good corrosion and friction resistance; each chemical reagent of the electroplating liquid has small harm to the environment; the process is stable; the electroplating liquid has simple components, is convenient to operate and can be stored for a long time after being prepared; and in addition, the electroplating liquid emits no acid mist in the working process and has high current efficiency.

A tunable resonant system comprising a resonant cavity apparatus including at least one cavity wall (150, 151, 152, 153, 154, 155) made of a conductive material and arranged to form a resonant cavity (102), and a method for varying the resonant characteristics of the tuned resonant cavity (102). The conductive material can be steel, brass, copper, ferrite and/or Iron-nickel alloy. At least one slot (104) can be provided in a wall (150, 151, 152, 153, 154, 155) of the resonant cavity for coupling energy in and out of the resonant cavity. A fluidic dielectric (108) is disposed within the resonant cavity (102). A fluid control system (101) can be provided for selectively varying a composition of the fluidic dielectric (108) to dynamically modify a frequency response of the resonant cavity (102).

The invention discloses a foam iron-nickel composite metallic material and a preparation method thereof. The foam iron-nickel composite metallic material has a three-dimensional or two-dimensional network structure; and comprises a base layer composed of iron-nickel alloy and a nickel layer above the alloy base layer as a protective layer, wherein the composite metallic material comprises (wt%) nickel 5-29 and iron in balance. The preparation method comprises electroplating iron-nickel alloy on a conducting porous substrate to obtain the iron-nickel alloy base layer, coating nickel layer above the base layer, and performing high-temperature heat treatment to form the protective layer. The inventive foam iron-nickel composite metallic material has reduced nickel consumption, so as to effectively reduce cost; and can replace porous nickel material to be used in battery substrate, electromagnetic shielding, noise absorption, filtration and other fields.

The invention relates to a surface plasma cladding method of a metal turbine runner. The problems of turbine runner blades such as surface hardness, wear resistance, corrosion resistance, shock resistance and prolonged service life can be effectively solved. The surface plasma cladding method comprises the following steps: a worktable of plasma cladding wear-resistant equipment is started to run so that a plasma torch moves to the position above cladding positions of the turbine runner blades; protective argon and a power supply for the plasma torch are started for arc striking to enter a plasma beam cladding process; under a direct current (DC) plasma beam at high temperature of 10,000-16,000 DEG C, iron-nickel alloy powder is synchronously transferred into the plasma beam of the plasma torch, and then the powder is rapidly heated into a molten or semi-molten state so as to perform mixed diffusion reaction with metal in a molten pool; as the plasma beam moves, the alloy molten pool is rapidly frozen into hard alloy coatings with thickness of 1-10mm; and after completion of cladding operation, grinding or polishing the hard alloy coatings on the surfaces of the blades. The surface plasma cladding method is simple; and by utilizing the method, the blades have the advantages of high hardness, high compactness, wear resistance and long service life.

A fine pulling lube cooling emulsified oil of iron-nickel alloy consists of motor oil 56-60wt%, oleic acid 8-12wt%, mersolates 18-22wt%, Turkey red oil 8-12wt%, triethanolamine 4-6wt%, chlorinated paraffin 20-30wt% and bactericide 0.15-0.3wt%. The process is carried out by adding motor oil and chlorinated paraffin into reactor successively, agitating at 600-650/min while heating to 70-80degree, agitating for 1-2hrs, lowering temperature to 40-50degree, adding mersolates and oleic acid into mixed liquid, agitating at 200-300/min for 1-2hrs, lowering to normal temperature, adding triethanolamine, Turkey red oil and bactericide into mixed liquid, and agitating at 200-300/min for 1-2hrs. It can prevent pulling metal from overheat and oxidation coloring and have better finish degree and brightness.

The invention provides a columnar coupling compound sucker rod centralizer. The centralizer comprises a core rod and a sliding sleeve, wherein the core rod is a hollow cylinder and is provided with an axial via hole in the middle; the via hole is provided with an internal thread suitable for being matched with an external thread of a sucker rod; the sliding sleeve comprises a steel body and a self-lubricating alloy coating; the self-lubricating alloy coating is formed by uniformly mixing 2-6wt% of solid lubrication particles and 94-98wt% of iron-nickel alloy powder; the solid lubrication particles are formed by uniformly mixing MoS2 and WS2; and the iron-nickel alloy powder is prepared from the following components by weight: 0.5-1.1% of carbon, 10-20% of chromium, 1.5-5.5% of silicon, 1.0-4.5% of boron, 25-55% of iron and the balance of nickel. The centralizer has the following advantages: the centralizer has excellent corrosion resistance, wear resistance and self-lubricating property; the use amount of nickel and the cost can be obviously reduced; the service life and the allowable working temperature are substantially improved; the centralizer can well centralize and protect the sucker rods for a long time; and the wear of the oil pipes is reduced.