37results about How to "Homogenization of ingredients" patented technology

The invention provides an ultrasonic processing device with high sound intensity, which is used for grain refining, degassing and ingredient homogenization when the metal and the alloy are solidified in a high temperature and comprises an ultrasonic generator, a transducer, an amplitude variable rod and a coupling head; wherein, the ultrasonic generator comprises a frequency phase locking tracking module, which is used for automatically carrying out tracking and detection to working frequency of the ultrasonic generator and adjusting matching frequency, thereby the high frequency resonance of the ultrasonic generator and the transducer is achieved. By adopting the frequency phase locking tracking module, the decrease and drift problems of frequency are solved and even in different high-temperature melts, the ultrasonic effect same as that of starting at rated frequency can also be obtained, thus realizing grain refining, degassing and ingredient homogenization when the metal and the alloy are solidified.

The invention discloses a method and a device for performing electric magnetization resistance welding-braze welding compounding on dissimilar materials. In the process of performing arc welding-braze welding on the dissimilar metal material, a brazed liquid solder molten pool is subjected to the reinforced booster action of electromagnetic stirring and electric magnetization by using the characteristic that a magnet exciting coil generates an external applied alternating magnetic field in a welding area to control a welding arc so as to promote ordered flow of the liquid solder, and rupture of membranes, wetting, spreading and diffusion of the liquid solder on the surface of the metal material with a higher melting point, promote the liquid solder and a base metal which is molten by the metal material with a lower melting point to be mixed fully, improve uniformity of compositions of a soldered seam, reduce the weld defects, optimize the compositions and the performance of the soldered seam, and improve the soldered joint; and the device has the advantages of simple structure, flexible application, lower cost, good effect, and easy implementation.

The invention discloses a method and a device for performing electric magnetization resistance welding-braze welding compounding on dissimilar materials by assistance of an applied magnetic field. In the process of performing resistance welding-braze welding on the dissimilar metal material, a liquid solder is subjected to auxiliary electromagnetic stirring and ordered control, and the molten liquid solder is subjected to the reinforced booster action of electromagnetic stirring and electric magnetization by using an external applied alternating magnetic field which is generated by a magnet exciting coil in a welding area so as to promote directional flow of the liquid solder, and rupture of membranes, wetting, spreading and diffusion of the liquid solder on the surface of the metal material with a higher melting point, promote the liquid solder and a base metal which is molten by the metal material with a lower melting point to be mixed fully, promote interdiffusion of elements and compositions between the solder and the base metal and alloying between the two, improve uniformity of compositions of a soldered seam, reduce the weld defects, optimize the texture and the performanceof the soldered seam, and improve the resistance soldered joint; and the device has the advantages of simple structure, flexible application, lower cost, good effect, and easy implementation.

The invention provides laser cladding alloy powder for repairing and remanufacturing a hot-working die. In order to solve the problem that nickel-based or cobalt-based thermal spraying powder is expensive, iron-based alloy powder is adopted in the invention. While the iron-based alloy is formed through replacing pure iron with waste steel, the reutilization of the waste is realized. However, as the impurity content in the waste steel is high, the removal of phosphorous, carbon and sulphur is required in the refining process so as to obtain molten steel of which the components and temperature are qualified. The traditional method usually removes the impurities through slagging in the form of furnace slag, but has the problems of high heat energy requirement, large metal losses and serious splashing. In order to solve the problems, a traditional slag former is replaced by yttrium oxide, and waste steel impurities and glomeration inclusions are removed through the purifying functions of rare-earth elements. Meanwhile, deposited metal is endowed with excellent anti-fatigue performance.

The invention provides an electrolysis device and method. The electrolysis device comprises an electrolysis tank, at least one cathode in the electrolysis tank, multiple anodes arranged around the cathode in intervals and multiple air blowing pipes symmetrically arranged on the inner wall of the electrolysis tank, wherein bottom outlets of the air blowing pipes stretch out of the bottom surface of the electrolysis tank and are arranged along a horizontal direction. An electrolyte at the bottom of the electrolysis tank is stirred through gas and a gas outlet direction and a cathode center direction form an a certain angle in air blowing so that the electrolyte on the bottom produces eddy currents along a horizontal direction and the electrolyte in all zones in the electrolysis tank can circularly flow and thus heat transfer and mass transfer in the electrolysis tank are improved, inner temperatures and components are uniformed, product quality is improved and furnace conditions are improved.

The invention provides an electrolysis device and an electrolysis method. The electrolysis device comprises an electrolytic cell, at least one cathode, a plurality of anodes and a plurality of gas-liquid flowing pipelines, wherein the electrolytic cell comprises a cell body and a cell cavity defined by the cell body; at least one cathode is arranged inside the electrolytic cell; the anodes are arranged at the periphery of the cathode at intervals; the gas-liquid flowing pipelines are arranged inside the cell body; and an inner outlet of each pipeline communicates with the cell cavity. According to the electrolysis device provided by the invention, the gas-liquid flowing pipelines are arranged inside the cell body of the electrolytic cell, and gas flow is intermittently introduced to the upper ends of the pipelines to cause electrolyte inside the pipelines and the cell body to generate pressure difference, so that electrolyte in the pipelines enters and exits in a circulating mode, the electrolyte on the bottom area of the electrolytic cell can flow in the circulating mode, heat transfer and mass transfer inside the electrolytic cell are strengthened, temperature and components inside the electrolytic cell are uniform, dross on the bottom of the electrolytic cell is relieved better, and therefore, the problem that the bottom of the electrolytic cell in the prior art has a flowing dead zone in the prior art is solved.

The invention relates to a method for one-step forming of a microcrystal glass plate through molten-state blast furnace slag. According to the method, the molten-state blast furnace slag and a commercial chemical reagent serve as raw materials, wherein the dosage of the blast furnace slag is 35-70%, and blast furnace slag microcrystal glass is prepared from, by weight, 10-30% of CaO, 35-60% of SiO2, 10-15% of Al2O3, 8-12% of MgO, 2-5% of K2O, 3-4% of ZnO and 3-6% of TiO2; component homogenization of all the materials is completed in a constant-temperature kiln, then the materials are poured into a die, solidification, nucleation, growing and cooling are completed in the die at one step, and finally the microcrystal glass plate is obtained through die release. According to the method, primary sensible heat of the molten-state blast furnace slag is sufficiently and efficiently used, energy waste is avoided, a proper preparing technological process and proper microcrystal glass chemical components are proposed, the preparing steps are simple, cost is low, and a cycle is short.

The invention discloses a homogenization deformation heat treatment method for rapid refinement and homogenization of as-cast aluminum-lithium alloy, comprising: step 1, preparing aluminum-lithium alloy ingot: preparing aluminum-lithium alloy ingot by ordinary gravity casting and smelting, and aluminum Lithium alloy ingots are cut into plates; step 2, primary homogenization treatment: heat preservation at the temperature of the primary homogenization treatment; step 3, rolling deformation: after the primary homogenization is completed, the plate is quickly rolled and deformed; Step 4, secondary homogenization treatment: the deformed sample is heated from the primary temperature to the secondary temperature for heat preservation. The invention realizes the rapid preparation method of aluminum-lithium alloy homogenization treatment with short time, low temperature, uniform composition and fine grains, and solves the problem of conventional homogenization treatment process requiring high temperature for long time heat preservation and grain growth and coarsening after homogenization treatment Serious and difficult to control the technical problems of component particles, it has engineering practical value for the preparation and industrial production of high-performance aluminum-lithium alloys.

The invention provides a dispersion strengthened material used for a platinum-based vessel. The dispersion strengthened material comprises a substrate and a strengthening phase dispersed in the substrate, wherein the substrate is platinum and the strengthening phase element is any one or more of zirconium, scandium and cerium. The zirconium content is more than 0 and no more than 0.4 wt%, the scandium content is in a range of 0-0.4 wt%, and the cerium content is in a range of 0-0.4 wt%, with the balance being platinum, wherein the total content of zirconium and scandium and cerium is less than0.6 wt%. The strengthening phase element is dispersed in the substrate in an oxide form to form a dispersion strengthened material. The dispersion strengthened material is good in scouring resistance, corrosion resistance and high-temperature creep resistance. A vessel prepared from the material is long in service life. The production cost in the technical fields, such as optical glass and glassfiber, can be efficiently reduced.

The invention discloses a method for controlling the internal quality of a Cr-Mo series circular tube steel casting blank with a phi-280mm production section, and belongs to the field of metallurgy. The method comprises the steps such as smelting in a converter, molten steel refining in an LF furnace, RH refining, and continuous casting of molten steel. First of all, the purity of the molten steel is improved according to reasonable parameter control in the molten steel smelting stage, and the high-temperature plasticity of the molten steel is improved and the steel grade crack sensitivity is lowered after the molten steel is subjected to titanium micro-alloying; and then, mold electromagnetic stirring and final electromagnetic stirring are combined in the molten steel pouring stage, so that component and temperature homogenization of the molten steel can be achieved, the shell of the circular tube steel casting blank can grow uniformly, the solidification structure of the circular tube steel casting blank can be effectively improved, the loose level can be raised, the area of an equiaxial crystal region can be enlarged, the compactness of the central region of the circular tube steel casting blank can be effectively improved, the crack defect of the circular tube steel casting blank can be effectively controlled, the surface non-clearing rate can be improved, and the quality of such a rolled product can be controlled well and stably.

The invention discloses an electromagnetic excited TIG arc melting-brazing hybrid welding method and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of a welding arc, and the assistant effect on the melting bath of the liquid-state brazing filler metal for arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on thesurface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.