671 results about "Melting temperature" patented technology

The invention discloses a matte glaze and a preparation method thereof. The matte glaze comprises the following components by weight: 1-5 parts of zinc oxide, 5-15 parts of barium carbonate, 0-15 parts of zirconium silicate, 10-25 parts of potassium feldspar, 10-20 parts of kaolin, 5-15 parts of calcite, 5-15 parts of calcined talcum powder, 20-35 parts of a matte frit and 0.5-1 part of an additive. Specifically, the matte frit comprises the following components by weight: 30-50 parts of SiO2, 15-20 parts of Al2O3, 0.01-0.5 part of Fe2O3, 3-10 parts of CaO, 0.5-5 parts of MgO, 1-5 parts of K2O, 3-10 parts of Na2O, 3-10 parts of ZnO, 0.1-1 part of B2O3 and 10-25 parts of BaO. By introducing the matte frit, the melting temperature of the formula is lowered, the firing range of the formula isbroadened, and the glaze texture achieves a fine matte effect.

A screen making machine includes a table, welder assembly, and actuation assembly. The welder assembly includes: a hot air nozzle, a pump, and a roller. The actuation system moves the welder assembly along the frame. Hot air from the nozzle elevates the temperature of the mesh and adjacent frame to an elevated temperature above a melt temperature of the surfaces of the mesh and frame. The roller presses the melted mesh surface against the melted frame surface, to melt fuse them together.

The invention relates to a copper cable insulation layer extrusion molding method and system based on dynamic temperature control, and belongs to the technical field of copper cable production. The method comprises the steps that the surface temperature of a copper core before the copper core enters an extrusion die head and the melt temperature of a plurality of independent temperature control sections divided by the extrusion die head in the material advancing direction are obtained in real time; meanwhile, feedback adjusting quantity is calculated based on the temperature difference between the melt temperature and the preset target melt temperature, the feed-forward compensation quantity and the feedback adjusting quantity are superposed to obtain comprehensive adjusting quantity of the heating power of each section, and real-time closed-loop adjustment is conducted on the heating power of each section of the extrusion die head according to the comprehensive adjusting quantity; and the flow and the temperature of the cooling medium are adaptively adjusted according to the temperature gradient of the surface temperature along the axial direction, and non-uniform gradient cooling is carried out on the insulating layer. The copper cable insulation layer extrusion molding method and system based on dynamic temperature control at least solve the problems of poor thickness uniformity of an insulation layer, large internal residual stress and unstable adhesive force with a copper core in the prior art.

The invention discloses a layered structure metal composite material based on a liquid phase separation phenomenon and a preparation method thereof, and the preparation method comprises the following steps: step 1, weighing raw materials which comprise at least two kinds of metal which is difficult to mix and melt; 2, the temperature of the metal material in the step 1 is increased to be above the liquidus of the metal material, and a mixture with uniform components is obtained; (3) cooling the mixture smelted in the step (2) to a liquid-phase non-mixed-melting temperature interval until the mixture is completely separated; and 4, the required metal composite material with the layered structure can be obtained after cooling. According to the invention, a method of continuous liquid phase separation and melt solidification along with a furnace is adopted, and the preparation of the layered composite material is realized by regulating and controlling alloy elements and process parameters; the preparation method is easy to operate, low in cost and high in efficiency, a metallurgical bonding interface can be obtained, and the problem that the bonding strength of a dissimilar material composite interface is low is solved.

The invention belongs to the technical field of brazing materials, and particularly relates to micro-nano particle reinforced nickel-based ultralow-melting-point wear-resistant brazing filler metal and a preparation method and application thereof. The invention provides micro-nano particle reinforced nickel-based ultralow-melting-point wear-resistant brazing filler metal. The micro-nano particle reinforced nickel-based ultralow-melting-point wear-resistant brazing filler metal comprises 94-99 parts of ultralow-melting-point nickel-based brazing filler metal and 1-6 parts of micro-nano particles. The ultralow-melting-point nickel-based brazing filler metal contains B, Si, In, Sn and Cu elements at the same time, and the melting temperature of the brazing filler metal can be cooperatively reduced; and meanwhile, the micro-nano particles are added, so that the strengthening and abrasion increasing effects on the nickel-based brazing filler metal can be effectively guaranteed, and meanwhile the flowability of the brazing filler metal is not affected. Therefore, through component design of the nickel-based brazing filler metal and synergistic cooperation of the micro-nano particles, the melting point of the brazing filler metal can be remarkably reduced, the brazing filler metal can be endowed with excellent hardness and wear resistance, and the technical bottlenecks that traditional nickel-based brazing filler metal is high in melting temperature and poor in wear resistance and brazed diamond is subjected to thermal damage are solved; and the method has a wide application prospect in brazing of diamond tools.

The invention belongs to the technical field of ceramic tiles, and particularly discloses a marble ceramic tile and a preparation method thereof. The marble ceramic tile sequentially comprises a green body layer, a cover glaze layer, a pattern layer and a marble glaze layer, the marble glaze layer is formed by marble glaze, and the marble glaze comprises a prefabricated material composed of first dry particles, second dry particles and protective glaze according to a specific proportion, wherein the first dry particles, the second dry particles and the protective glaze are different and have a specific range of initial melting temperature and particle size. By innovating the formula of the glaze layer, the prepared marble ceramic tile has stereoscopic impression and natural sense which are closer to those of natural marble, the glaze surface is fine and smooth, and meanwhile, the marble ceramic tile also has better wear resistance, antifouling property and acid-base resistance and has better application prospects.

One or more aspects of the present disclosure provide for composite elements that include a textile having a plurality of fibers, the plurality of fibers comprising a first thermoplastic material; and a second thermoplastic material surrounding the plurality of fibers of the textile and consolidating at least a portion of the textile, wherein the second thermoplastic material has a melting temperature lower than a melting temperature of the first thermoplastic material. The composite elements can be used as part of a fluid chamber or cushioning element, whereby the composite element imparts puncture resistant to the fluid chamber or cushioning element. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

The invention discloses a PCD (Poly Crystal Diamond) cutter and a layered welding process, and relates to the technical field of cutter welding, the laser welding process of the PCD cutter is essentially characterized in that brazing filler metal is heated by high heat energy of a high-energy laser beam, and the welding process is completed by attaching a PCD composite sheet. In order to avoid the problem that high heat energy of a high-energy laser beam causes graphitization on the PCD clad sheet, the whole welding tool is optimized, and the welding tool is essentially characterized in that firstly, the installation mode of the PCD clad sheet relative to a tool base body is changed, so that the heating process of the laser beam cannot directly affect the PCD clad sheet, only the hot melting temperature of a brazing filler metal layer is maintained, and the welding speed of the PCD clad sheet is increased; and on the basis, a rotating mode of the PCD composite sheet relative to the cutter base body is provided, so that the PCD composite sheet is fully attached to the cutter base body, the welding quality is analyzed according to an electrical sensing mode, and the key purpose is that the welding quality of the PCD cutter is improved by maintaining the attaching mode of the PCD composite sheet and the cutter base body.

The invention relates to the field of battery materials, in particular to a binder material, a preparation method, a positive electrode material and a battery. The preparation method provided by the invention comprises the following steps: mixing and grinding a raw material compound and an additive into mixed powder; heating the mixed powder to a melting temperature in a protective gas atmosphere and carrying out a reaction to obtain a molten mass; the molten mass is cooled based on the rapid quenching technology, a nanocrystalline area and an amorphous area are formed in the molten mass cooling process, and a composite structure thin strip is obtained after cooling; forming a lithium-rich layer on at least part of the surface of the composite structure particle; providing a carbon source, mixing the composite structure particles forming the lithium-rich layer with the carbon source, and then carrying out heating treatment to form a carbon layer wrapping the surfaces of the composite structure particles and the lithium-rich layer; and epitaxially growing a carbon nanotube layer on the outer surface of the carbon layer, and obtaining the binder material after the epitaxial growth is completed. A novel binder material which has good ion / electron conductivity, mechanical properties adapting to volume change and suitable processing characteristics is found.

The invention belongs to the technical field of brazing materials, and discloses high-entropy composite brazing filler metal and a preparation method and application thereof. The high-entropy composite brazing filler metal comprises a nickel-based brazing filler metal matrix and high-entropy alloy powder, and the high-entropy alloy powder comprises, by atomic percent, 15%-25% of Co, 15%-25% of Cr, 15%-25% of Fe and 25%-45% of Ni. According to the high-entropy composite brazing filler metal, the low melting temperature is kept, the high-entropy alloy particles can adjust joint residual stress caused by the large difference of thermal expansion coefficients of dissimilar materials, the interface regulation and control effect is achieved, generation and distribution of joint brittle phases are affected, a special core-shell structure is formed around the high-entropy particles, and therefore the high-entropy composite brazing filler metal can be obtained. A continuous brittle phase formed by a joint can be broken, crack propagation is prevented, the mechanical property of the joint is remarkably improved, the brazing filler metal preparation method is simple and easy to implement, and the high-entropy composite brazing filler metal adopts an instantaneous liquid diffusion brazing mode, so that weld joint structure components are homogenized.

The invention discloses rare earth co-doped alkali-free aluminum borosilicate glass and application, and the rare earth co-doped alkali-free aluminum borosilicate glass comprises the following components in percentage by mole: 68.85-69.60% of SiO2; 13.50%-14.15% of Al2O3 (aluminum oxide); 1.50 to 1.70 percent of B2O3 (boron trioxide); 4.45% to 4.60% of MgO; 5.45% to 5.80% of CaO; 1.20% to 1.80% of SrO; 0.50 to 2.80 percent of La2O3 (La2O3); 0.70% to 3.00% of Y2O3; and 0.10%-0.30% of SnO2. The rare earth co-doped alkali-free aluminum borosilicate glass has a high strain point, a low melting temperature, a low thermal expansion coefficient and a high elastic modulus, production energy consumption is reduced as much as possible under the condition that various properties are improved, and the production and manufacturing requirements of OLED display panels are met.

The invention relates to the technical field of laser welding, in particular to light-proof material laser welding equipment. Comprising a housing; the control panel is installed on the side face of the machine shell. The workbench is arranged in the machine shell; the control box is mounted in the workbench; the laser generator is mounted in the workbench; the number of the laser emitting heads is two, and the two laser emitting heads are both located above the workbench; the rotary table is rotationally connected to the workbench; the fixing frames are circumferentially connected to the top of the rotary disc at intervals. The end faces of the two workpieces can be heated to the melting temperature through the two laser emission heads correspondingly, then a linkage structure of the fixed frame, the sliding frame and the rotating frame is arranged, precise control of the first servo electric cylinder and the second servo electric cylinder is matched, precise overturning and positioning of the workpieces can be achieved, and the working efficiency is improved. The end faces of the two light-proof material workpieces can be accurately butted, pressing welding is carried out, the application range is wide, working procedure switching is not needed, and the production efficiency can be improved.

The invention relates to the technical field of converter safety monitoring, in particular to a method for predicting the thickness of refractory bricks based on converter wall temperature. The temperature distribution and the residual thickness of the refractory bricks are estimated according to the external furnace body temperature and the melt smelting temperature, and then the overhaul of the converter is judged according to the temperature distribution and the residual thickness of the refractory bricks, so that the real-time safety monitoring in the operation process of the converter is realized. The problem of how to monitor the operation risk of the converter is solved.

A screen making machine includes a table, welder assembly, and actuation assembly. The welder assembly includes: first and second nozzles, a pump that pumps air through each nozzle, and a roller. The first nozzle, second nozzle, and roller are positioned in line and spaced apart. The actuation system moves the welder assembly along each side of the frame. Hot air from the first nozzle elevates a temperature of the mesh and adjacent frame to a first elevated temperature, and subsequent flow of hot air from the second nozzle elevates them to a second elevated temperature, being above a melt temperature of the surfaces of the mesh and frame. The roller presses the melted mesh surface against the melted frame surface, to melt fuse them together. A top surface of the table is heated to thereby heat a second side of the frame, facilitating better welds.

The invention relates to the technical field of high-temperature melt temperature monitoring, and discloses a top-blown furnace high-temperature melt temperature and splashing online monitoring system and method, and the system comprises a top-blown furnace data acquisition module, a furnace body splashing data calculation module and a smelting process control module. The method comprises the following steps: transmitting detected data to a data calculation module in real time; performing interface reconstruction on the real-time data to obtain the specific condition that the melt is splashed to the wall surface, and realizing visualization of impact of the melt on the furnace body according to the specific condition that the melt is splashed to the wall surface; the visual data is transmitted to the smelting process control module; and on the basis of the molten pool temperature distribution and the melt splashing condition, the flow of pulverized coal, dry powder and gas is adjusted, a melt temperature liquid level model is constructed, the molten pool temperature and the melt splashing condition are evaluated, and the smelting process is controlled according to the evaluation result. According to the method, the smelting quality problem caused by melt splashing and uneven temperature can be reduced.

The invention discloses a modified plastic processing temperature adaptive control method, and relates to the technical field of high polymer material processing control, and the method comprises the following steps: collecting the same frequency mapping of power grid disturbance and melt temperature response, capturing the transient power fluctuation of a heating unit with millisecond-level time precision by adopting a phase comb sampling technology, and constructing a power pulse fingerprint database; a parameter space for discriminating a pseudo-steady state is established based on a power pulse fingerprint database, a short-time power pulse signal and a stable signal are classified by using a phase lag and entropy increase dual-threshold method, and a pseudo-steady state confidence index is generated. According to the method, the power pulsation fingerprint database and the electrothermal coupling model are constructed, pseudo-steady-state temperature control abnormity is accurately recognized, reverse energy regulation and control are achieved in combination with a sensitivity track and a thermal write-back mechanism, the melt temperature stability is improved, the product warping rate is effectively reduced, and the size consistency and the mechanical property are remarkably optimized.

The invention relates to the technical field of PE lamination production control, and discloses a distributed control system for a high-speed PE lamination production line. A base material state monitoring module of the system collects surface tension parameters and thickness distribution data of a base material in real time, and a dynamic base material state matrix is generated in combination with the operation speed of the base material; the temperature field coordination module is used for matching a preset melt temperature gradient curve according to thickness distribution data in the dynamic base material state matrix and generating a partition temperature regulation and control instruction set; the extrusion pressure balance module analyzes the pressure fluctuation historical record of each extrusion section based on the partition temperature regulation and control instruction set, calculates the pressure compensation amount of adjacent sections and generates a pressure balance parameter table; the film layer fusion control module receives the compensation amount data, adjusts the rotating speed difference of the double-screw extruder and the opening degree parameter of a die head in combination with the real-time melt casting speed, and outputs a film layer fusion quality index; and the distributed execution module decomposes the film fusion quality index into independent control instructions and synchronously issues the independent control instructions to each execution unit.

The invention relates to the technical field related to process parameter management, in particular to a multi-modal data driven foamed aluminum process parameter optimization method and system, and the method comprises the steps: obtaining a foamed aluminum process parameter set, and configuring a process feature vector; according to the porosity standard deviation, the density uniformity index and the modified compressive strength variable coefficient of the foamed aluminum finished product, a melt temperature regulation and control subsequence and a foaming agent adding subsequence are determined, a control instruction set is generated in combination with a process feature vector, and synchronous issuing is performed by using an industrial Internet of Things gateway. The technical problems that foamed aluminum technological parameter optimization mostly depends on single parameter adjustment, the matching degree of parameter adjustment and finished product quality characteristics is low, and foamed aluminum production stability is limited are solved, collaborative optimization of melt temperature adjustment, foaming agent adding and mold pressure adjustment is achieved, a control instruction set is generated, and the production efficiency is improved. Therefore, the porosity standard deviation of the foamed aluminum finished product is reduced, the density uniformity index is improved, and the technical effects of process stability and finished product quality consistency are improved.

The invention relates to the technical field of melting furnace combustion control, in particular to a visual identification-based natural gas spray gun angle adjusting system for a melting furnace, which determines the actual auxiliary heating temperature according to the real-time glass liquid temperature and the main heating temperature so as to determine the heat loss equivalent, and determines whether to adjust the spray gun angle according to the fluidity. And after a simulated auxiliary heating temperature is determined according to a judgment result of adjusting the angle of the spray gun in combination with the heat loss equivalent, an angle adjusting strategy is determined through a melting furnace simulation module to control an angle adjusting device to adjust the flame spraying direction, so that the adjusted auxiliary heating temperature is higher than the auxiliary heating temperature before adjustment. According to the invention, the flame spraying angle of the spray gun is automatically adjusted and monitored in real time according to the multi-dimensional data of the glass melting furnace, so that the glass clarifying and homogenizing efficiency is optimized.

This invention belongs to the field of medical device technology and discloses a barbed suture and its preparation method. The barbed suture includes a suture body and barbs formed on the suture body. The preparation method involves irradiating the horizontally arranged suture body with a laser beam emitted from a laser, the temperature of which is higher than the melting temperature of the suture body. T m At the same time, it is lower than the thermal decomposition temperature of the suture body. T d The laser is positioned directly above or slightly above the suture body. The laser beam is decomposed into horizontal and vertical components. The horizontal component is parallel to the length of the suture body, and the vertical component points downwards. During irradiation, the laser reciprocates along a horizontal direction perpendicular to the length of the suture body, causing the laser beam to cut the suture body and form barbs. This invention allows the barbs to bend and curl upwards, achieving high-curvature barbs, and the resulting barbed sutures do not suffer from insufficient strength due to a reduction in suture diameter.

A method and system for light induced transfer of components (15) from a donor substrate (10) to an acceptor substrate (20). The donor substrate (10) comprises a transparent carrier (11) configured to carry the components (15) facing the acceptor substrate (20), and a release stack (S). The release stack (S) comprises a light-absorbing layer (12), a decomposition layer (16), a melt layer (13), and an adhesive layer (14). The light-absorbing layer (12) has a high absorption coefficient for absorbing the light beam (L) causing heat conduction to the melt layer (13). The light-absorbing layer (12) remains solid while the melt layer (13) is melted. The adhesive layer (14) adheres the components (15) to the melt layer (13) while the melt layer (13) is solid and releases adhesion when the melt layer (13) is melted (M). The decomposition layer (16) has an evaporation temperature above the melting temperature of the melt layer, and forms a bubble (17) stimulating the release and transfer when the melt layer 913) is liquid.

The invention discloses a microcapsule phase change cement material, which is prepared by compounding a microcapsule with phase change performance and a cement matrix, the microcapsule is of a core-shell structure, the raw materials of the shell are melamine, urea and formaldehyde, the raw material of the core material is octadecane, and Tween 80 and lauryl sodium sulfate are used as emulsifiers. The preparation method comprises the following steps: 1, preparing an MUF resin prepolymer; 2, preparing a core material O / W emulsion; 3, polymerization reaction of the microcapsules; and 4, preparing the microcapsule phase change cement material. When the composite material is used as a cement-based composite material, the melting temperature ranges from 25 DEG C to 29 DEG C, the crystallization temperature ranges from 19 DEG C to 23 DEG C, the melting enthalpy ranges from 13.47 J / g to 29.78 J / g when the mixing amount is 10%-30%, the crystallization enthalpy ranges from 12.94 J / g to 28.41 J / g, and the coating efficiency is 67.5%. The initial decomposition temperature ranges from 386.13 DEG C to 390.96 DEG C, the finishing temperature ranges from 399.49 DEG C to 406.42 DEG C, and the maximum degradation temperature ranges from 438.78 DEG C to 443.64 DEG C; the heat conductivity coefficient is 0.3216 to 0.3949, and is improved by 39.4 percent compared with that of standard cement.

The invention discloses a water-based organic silicon high-temperature-resistant insulating coating and a preparation method thereof, and belongs to the technical field of insulating coatings. The water-based high-temperature-resistant organic silicon resin is used as a film forming matter, water is used as a solvent, and the low-melting-point fluxing filler with different molten state temperature intervals, the multi-scale insulating filler and the reinforcing filler are added, so that the high temperature resistance and the insulativity of the water-based high-temperature-resistant insulating coating are improved; meanwhile, nanoscale flaky or spherical aluminum oxide is distributed in micron-sized particles such as silica powder and talcum powder, the functional filler in a system and SiO2 ash formed after organic silicon resin is subjected to high temperature are bonded together by the low-melting-point fluxing filler in a molten state, a continuous, complete and compact protective layer is formed on the surface of a base material, and the coating is prevented from cracking. The thickness of the coating prepared by the method is 120 + / -10 microns, the adhesive force is 1-2 grades, the pencil hardness is 2H-3H, and the impact resistance is 40kg. Cm-50kg. Cm.

The invention provides a multi-printing-nozzle automatic switching method, a multi-color 3D printing system and a computer storage medium. The multi-printing-nozzle automatic switching method is applied to a multi-color 3D printing system. The method comprises the steps that stopping coordinates and material color information of all nozzles are obtained; a printing instruction is responded, a tool head is used for clamping an initial nozzle to a calibration position to obtain reference coordinates of the initial nozzle, then the initial nozzle is moved to the position above a hot bed, the nozzle is heated to the melting temperature to complete the color printing task, heating is stopped after completion, and the nozzle is reset; and for the follow-up ith color task, the tool head clamps the corresponding ith spray head to the same calibration position to obtain the coordinates to be calibrated, the offset is calculated by using the coordinates to be calibrated and the reference coordinates, the coordinates of the spray head are calibrated, and finally the calibrated spray head is controlled to move to the hot bed to continue to execute the printing task. According to the method, the cost of the multi-color 3D printing system can be reduced, and meanwhile higher printing efficiency is achieved.

The invention relates to the technical field of robot control, and particularly discloses a cable coating robot control method and system capable of gaining along with speed, and the method comprises the steps: detecting the cable traction speed, the extruder screw torque, the actual coating melt temperature and the die head pressure in real time; determining a compensation gain based on the extruder screw torque, the actual temperature of the coating melt and the calibration basic gain; determining an output gain based on the cable traction speed-gain segmentation mapping function; calculating a final gain based on the absolute deviation between the die head pressure and the set pressure and the output gain; controlling the output flow of the extruder based on the final gain and the cable traction speed; according to the invention, precise regulation and control of the output flow of the extruder are realized, and the stability and consistency of the cable coating process are ensured, so that the cable coating quality is improved, the material waste is reduced, and the production efficiency is improved.

Embodiments can relate to an improved hydroflux, additive or electroless plating assisted densification cold sintering process to densify powdered metals at lower compaction pressures and lower temperatures (e.g., 520 MPa and 140° C.). The process can involve inducing dissolution precipitation mechanisms at powder interfaces by introducing a transport phase (formed by the introduction of water during the process to suppress melting temperatures) that is not an aqueous solution. Particle interfaces in the cold sinter fuse together by the presence of the additional transport phase, thereby reducing the temperatures and pressures needed for compaction. Some embodiments involve the use of elements to form a eutectic at the desired low temperature, thereby stabilizing certain crystal structure shapes of isometric crystal systems, inducing rapid densification, and facilitating pore smoothing. Embodiments of the process can be used to generate a green compact via sintering that exhibits improved green strength.

The utility model discloses an electromagnetic thermal field vacuum melting furnace for high-temperature melting coupling electromagnetic stirring of multi-component alloy, which has the melting temperature of 1800 DEG C. The electromagnetic thermal field vacuum melting furnace comprises a vacuum furnace body, a vacuum system, a medium-frequency induction heating component, a power-frequency electromagnetic stirrer, a melting crucible, a solidification water-cooling copper crucible, a mechanical stirrer, a vacuum feeding device and a dumping device. The vacuum furnace body is communicated with a vacuum system; a smelting crucible is arranged in the vacuum furnace body; and medium-frequency induction heating and power-frequency electromagnetic stirring are arranged on the outer side. And the melt subjected to high-temperature smelting and electromagnetic stirring can be poured into a solidification water-cooling copper crucible. And mechanical stirring and vacuum feeding can be applied. According to the uniform electromagnetic thermal field vacuum melting furnace for high-temperature melting and electromagnetic stirring of the multi-component alloy, the industrial frequency electromagnetic stirrer and the mechanical stirring assembly are arranged, so that the alloy in the melting crucible can be stirred, and alloy components are fully fused into a base body at a high temperature and are uniformly mixed. The equipment can be used for preparing semiconductors, solid hydrogen storage alloys and bulk amorphous materials.

A braze tape includes a first portion, a second portion, and a central portion located between and adjacent to the first portion and the second portion. The first portion includes a low melting temperature alloy material, the second portion includes a high melting temperature alloy material, and the central portion includes a mixture of the low melting temperature alloy material and the high melting temperature alloy material. The central portion may gradually change between the low melting temperature alloy material and the high melting temperature alloy material. A related method is also disclosed.

The invention discloses a preparation method of a novel low-alloy steel solid welding wire. The preparation method comprises the following steps of S1, raw material smelting, S2, a hot working stage, S3, a cold working stage, S4, surface treatment and S5, quality detection. During raw material selection, C-Mn-Si is adopted as a basic alloy, the content of C is 0.06-0.12%, the content of Mn is 1.2-1.6%, then a Ti-B microalloy is added, the hardenability is improved, the O / N content is limited at the same time, then a two-stage refining process combining vacuum induction melting and electroslag remelting is adopted, the melting temperature, time and refining slag system components are regulated and controlled, and the hardness of the alloy is improved. The method comprises the following steps: preparing a copper plating solution through equipment, deeply removing harmful impurities such as S and P, promoting floating and size refinement of inclusions by applying an electromagnetic stirring technology, remarkably improving the purity of a metal matrix, thereby improving the purity of raw material smelting, proportioning the copper plating solution through the equipment, setting the parameters of the copper plating equipment to be 10-15A / dm in current density and 2-3mu m in plating thickness, and carrying out a copper plating process on a welding wire.

One embodiment relates to an orthopedic precast that, upon an application of heat of a prescribed level while the orthopedic precast is worn adjacent to a targeted body part of the patient, transitions into an orthosis that conforms with the body part. The orthopedic precast includes a first portion and an interconnect. The first portion is formed of interwoven strands of a first thermoplastic material having a first melting temperature. These interwoven strands forming a pathway within the first portion. The interconnect is positioned within the pathway, wherein the interconnect is configured to receive power and radiate heat based on current flowing through the interconnect. Responsive to the interconnect supplying radiating heat of at least the first melting temperature, the first thermoplastic material partially melts and, upon subsequent cooling, the first portion transitions from flexible material into a rigid structure of the orthosis.