Our material technology is used in many different processes and thousands of products, and the materials provided are supported by a wide range of technologies. We can combine various material processing and application technologies, including electrolytic purification, composite synthesis, melting, zone melting, electron beam melting, induction melting, arc melting, atomization crushing, ball milling crushing, hot pressing, hot isostatic pressing, cold isostatic pressing, sintering, spraying, forging, rolling, extrusion, mechanical processing, etc.
Electrolysis and chemical purification technology
Preparation technology of low oxygen and high purity metals and alloys
Preparation technology of spherical powder
Accurate composition control and stable particle size distribution technology
Micro structure morphology control technology
Metal and alloy heat treatment technology
Material plastic forming technology
By electrolysis of the electrolyte, crude metal is used as the anode, pure metal is used as the cathode, and a solution containing metal ions is used as the electrolyte. The metal dissolves from the anode and precipitates at the cathode. The impurities and inert impurities in the crude metal do not dissolve and become anode mud, which settles at the bottom of the electrolytic cell. Although active impurities dissolve in the anode, they cannot precipitate in the cathode. Therefore, high-purity metals can be obtained through electrolytic cathodes. This process is the electrolytic refining and purification of metals. The metals purified by electrolytic refining include copper, cobalt, nickel, gold, silver, platinum, iron, lead, antimony, tin, bismuth, etc.
Vacuum induction furnace is a vacuum melting equipment that uses the principle of medium frequency electromagnetic induction heating. The furnace body is equipped with spiral tubular coils. When a medium frequency current is passed through the coil, an alternating magnetic field will be generated. Under the influence of a magnetic field, metal charges will induce an electric potential and generate a ring current. This current is concentrated in the outer layer of the metal charge under the action of its own magnetic field (the so-called skin effect), giving the outer metal material a high current density, thereby producing a concentrated and powerful thermal effect to heat or melt the metal charge. Suitable for melting and casting nickel-based and special steels, precision alloys, high-temperature alloys, rare earth metals, active metals, hydrogen storage materials, neodymium iron boron, magnetic materials, etc. in vacuum or protective atmosphere.
Under vacuum conditions, an arc discharge is generated, forming a plasma zone and generating high temperatures. Arc discharge generates Joule heat, causing the consumable electrode to continuously melt, crystallize, and cast ingots. Its characteristics are high-temperature and high-speed melting, significant degassing effect, and the molten metal is not contaminated by refractory materials, which can reduce metal inclusions in the metal. Suitable for the melting and casting of steel, especially high-grade alloy steel, titanium, titanium alloys, and reactive refractory metals.
Under high vacuum conditions, the cathode is heated and emits electrons under the action of a high-voltage electric field, and electrons gather into a beam. Under the action of accelerating voltage, the electron beam moves towards the anode at an extremely high speed. After passing through the anode, under the action of the focusing coil and deflection coil, the bottom ingot and material in the mold are accurately bombarded, causing the bottom ingot to melt and form a molten pool. The material continuously melts and drips into the molten pool, thus achieving the melting process. This is the principle of electron beam melting. Suitable for melting high melting point active metals such as tantalum, niobium, tungsten, molybdenum, etc.
By local heating, a narrow melting zone appears on the ingot, which moves slowly. The technique of controlling the distribution of impurities during melting and solidification by exploiting the difference in solubility of impurities between solid and liquid phases is also known as zone melting. Zone purification is an important application in zone smelting and an important method for preparing semiconductor materials and other high-purity materials (metals, inorganic compounds, and organic compounds). Used to prepare aluminum, gallium, antimony, copper, iron, silver, tellurium, boron and other elements. It is also used to purify some inorganic and organic compounds.
Water atomization powdering is a process that uses high-pressure water flow to impact the molten metal flow into fine powder, and then undergoes drying, screening, final batching, and packaging to obtain powder that meets customer requirements. Characteristics of metal powder obtained by water atomization method: · Low impurity content in powder · Good compressibility · Good formability · No segregation during transportation and mixing · Particle size distribution can be customized according to customer requirements.
Gas atomization uses nitrogen or argon gas to hit a metal stream to form tiny droplets, which can form higher spherical metal powder during the landing process. Characteristics of metal powder produced by gas atomization method: · The powder has good sphericity, good fluidity and high surface gloss. · High bulk density and tap density · High purity, low oxygen content · No segregation during transportation and mixing · Particle size distribution can be customized according to customer requirements.
Put the material in the sealed elastic mold into a container containing liquid or gas, apply a certain pressure on it with the liquid or gas (generally the pressure is 100-400mpa), and press the material into a solid shape in its original shape. After the pressure is released, remove the mold from the container. After demolding, the green body is further shaped as needed to provide the green body for further sintering, forging and hot isostatic pressing processes. Mainly used for pressing high-quality powder products, used in high-voltage electric porcelain, electric carbon, electromagnetic, etc.
It is a sintering method that fills dry powder into the model, then pressurizes and heats it from a uniaxial direction to complete molding and sintering at the same time. Since hot pressing sintering is heated and pressurized at the same time, the powder is in a thermoplastic state, which is conducive to the contact diffusion, flow and mass transfer processes of particles, so the molding pressure is only 1/10 of that of cold pressing; it can also lower the sintering temperature and shorten the sintering time. Thereby inhibiting the growth of grains and obtaining products with fine grains, high density and good mechanical and electrical properties. Used for hot-pressing sintering of metal composite materials or ceramic powder composite materials - alumina, ferrite, boron carbide, boron nitride and other engineering ceramic products.
The hot isostatic pressing process is to coat metal or ceramic (mild steel, nickel, molybdenum, glass, etc.) products and then place the products in a closed container. Using nitrogen and argon as pressurized media, equal pressure is applied to the product and high temperature is applied at the same time. Under the action of high temperature and high pressure, the product can be sintered and densified. It includes the repair and densification of casting defects, the shaping of metal powders (preforms and near-net-shape parts), the shaping of ceramic powders and the sintering of diamond molds.
Thermal spray technology is a process that uses heat sources such as arcs, ion arcs, and flames to heat, melt, or soften spray materials, and uses the power of the heat source itself or external airflow to atomize the spray materials. While spraying onto the work surface at a certain speed, it relies on the physical changes and chemical reactions of the spray material to form a composite coating with the workpiece. Thermal spray technology can be used to spray almost all solid engineering materials, such as carbide, ceramics, metals, graphite and nylon, to form coatings with various special functions, such as wear-resistant layers.
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