79 results about "Thermo mechanical" patented technology

The invention belongs to the technical field of aero-engine high-temperature part test, and particularly relates to a thermal mechanical composite fatigue test device in a turbine blade rotation environment, which comprises a high-temperature gas system, a stator system, a rotor system, a support system, a test system, an auxiliary system and a turbine rotor blade test piece, the high-temperature fuel gas system is used for providing a fuel gas environment for a turbine rotor blade test piece and controlling the high-low temperature circulation state of fuel gas, a combustion chamber is arranged at the front end of the high-temperature fuel gas system and provided with a double-oil-way nozzle, a fuel gas flowing system is arranged at the rear end of the high-temperature fuel gas system, and a blade grid structure is designed for the fuel gas flowing system according to the geometrical shape of a turbine rotor blade. And a spray cooling section is arranged at the rear part of the test section. The device is composed of six core systems including a high-temperature fuel gas system, a stator system, a rotor system, a supporting system, a testing system and an auxiliary system, all the systems work cooperatively, and integrated simulation of the high-temperature fuel gas environment, rotating centrifugal loads and heat-force synchronous circulation is achieved.

A method for optimizing process parameters of friction stir welding with synchronous rolling and a related device are provided. A heat source model is applied to a system finite element model, and heat transfer simulation is performed on the welding and cooling processes of friction stir welding. Furthermore, contact relationships and mechanical action relationships between a stirring tool finite element model and a weldment finite element model and between a roller finite element model and the weldment finite element model are applied in the system finite element model. Thermal-mechanical simulation is performed on the welding process, the cooling process and a clamp release process of friction stir welding with synchronous rolling with a temperature field result obtained from heat transfer simulation as an input. Based on the welding stress and welding deformation results obtained from thermal-mechanical simulation, process parameters are adjusted and re-simulated until optimal parameters are obtained.

The invention belongs to the technical field of alloys, and provides a lightweight refractory multi-principal-element alloy with excellent high-temperature creep property, and a preparation method and application thereof. The general formula of the light refractory multi-principal-element alloy with the excellent high-temperature creep property is TiaVbAlcCrdMoe, wherein 43% < = a < = 48%, 43% < = b < = 48%, 2% < = c < = 8%, 2% < = d < = 8% and 1% < = e < = 5%, a + b + c + d + e = 100%, and a, b, c, d and e are mole percentages. The alloy presents an isometric crystal structure in a complete recrystallization state in a thermal mechanical treatment state, the phase structure is a single-phase body-centered cubic BCC structure, the alloy has low density and shows excellent creep property at 650 DEG C / 100 MPa, the creep time exceeds 90 h, and the creep elongation is lower than 10%.

The invention relates to the technical field of a plasma spraying process of a high-corrosion-resistance yttrium oxide coating and a gradient structure design method, and particularly discloses the plasma spraying process of the high-corrosion-resistance yttrium oxide coating and the gradient structure design method. The invention aims to solve the problems that a traditional plasma spraying yttrium oxide coating is high in porosity, non-uniform in microstructure, easy to crack and peel off due to mismatch of a thermal expansion coefficient and a metal matrix, and difficult to consider compactness, stress buffering and long-term stability at the same time. The method comprises the following steps: carrying out degreasing cleaning, sand blasting coarsening, ultrasonic oscillation and drying pretreatment on a substrate, carrying out high-corrosion-resistance yttrium oxide composite powder spraying by adopting plasma spraying parameters optimized by an orthogonal test, and arranging multiple layers of intermediate layers with components and thermal expansion coefficients in gradient transition between the substrate and a coating, follow-up heat treatment and nano sol hole sealing treatment are assisted. By adopting the technical scheme, low porosity, high bonding strength, excellent thermal mechanical stability and long-term corrosion resistance in a strong corrosion environment of the coating can be realized.

The invention discloses a high-conductivity high-strength copper alloy thermal mechanical treatment strengthening process which comprises the following steps: firstly, heating a Cu-Ni-Be-Zr alloy cast ingot to 890-980 DEG C until the core part of the cast ingot reaches a set heating temperature, then compressing the cast ingot, carrying out water cooling at room temperature, and finally carrying out aging treatment and air cooling on the cast ingot at 480 DEG C * 3-480 DEG C * 8 hours; the Cu-Ni-Be-Zr alloy comprises the following components in percentage by weight: 1.6 to 2.5 percent of Ni, 0.25 to 0.5 percent of Be, 0.05 to 0.2 percent of Zr, not more than 0.1 percent of impurities and the balance of Cu. According to the method, the cast ingot of the Cu-Ni-Be-Zr alloy is directly subjected to thermal mechanical treatment and then subjected to aging, the process steps of forging, solid solution treatment and cold deformation in a traditional process are omitted, the performance of the treated Cu-Ni-Be-Zr alloy is basically consistent with that of the alloy obtained after the traditional production process is adopted, and therefore the Cu-Ni-Be-Zr alloy is obtained. The thermomechanical treatment combines the advantages of hot working and mechanical deformation, and the microstructure and performance of the alloy can be more efficiently improved.

The invention relates to an assembly (1) of cryogenic equipment (10, 20), said assembly (1) comprising: - a first cryogenic equipment (10) and a second cryogenic equipment (20) whose connection means (10B, 20B) are made of a first material, - a piping routing (30) fluidically connecting the first cryogenic equipment (10) and the second cryogenic equipment (10), - a main support (40) made of a second material with different thermomechanical properties to those of the first material, - an intermediate support (50) made of a material with thermomechanical characteristics similar to those of the first material, the first cryogenic equipment (10) and the second cryogenic equipment (20) comprising support means (10A, 20A), preferentially made of said first material, each support means (10A, 20A) being attached to the main support (40) and to the intermediate support (50), each support means (10A, 20A) being attached to said main support (40) with one degree of freedom.

The application discloses a 1000MPa-grade extra-thick hydroelectric steel with low strain aging sensitivity, and chemical components and mass percentages of the steel include the following: C: 0.05%-0.13%, Si: 0.15%-0.35%, Mn: 0.8%-1.2%, Ni: 1.8%-2.2%, Cr: 0.3%-0.6%, Mo: 0.3%-0.6%, V: 0.03%-0.07%, Ti: 0.01%-0.03%, Nb: 0.02%-0.05%, Alt: 0.02-0.05%, S≤0.002%, P≤0.008%, N≤0.008%, and the rest is Fe and inevitable impurity elements. The application has the advantages that the steel plate can still maintain extremely low strain aging sensitivity after cold working deformation, and a stable dislocation network and nanometer precipitated phase are introduced by using a specific thermal mechanical treatment process.

The invention relates to the technical field of pressure-sensitive materials, in particular to a wide-range high-response pressure-sensitive material composite structure and a process optimization method. Comprising the following steps: immersing polymer particles into a conductive composite coating solution, mechanically stirring, ultrasonically dispersing, drying and curing to prepare particles with uniformly coated surfaces; the method comprises the following steps: melting particles by adopting a micro-fluidic spinning technology, extruding special-shaped cross-section fibers through a spinneret plate, stretching and shaping, and constructing a surface bulge structure. A plurality of fibers are twisted and stranded, the twisting direction is regulated and controlled to form a stable conductive net, and the periodic wavy linear single-strand pressure-sensitive wire is prepared through thermal mechanical shaping. The pressure-sensitive lines are subjected to warp and weft orthogonal weaving, butt-joint points are locally hot-pressed and fixed to form a latticed synaptic array and groove network, and the tip end is an arc-shaped micro-strain trigger area; and assembling a multi-layer functional fabric stacking structure, preparing an electrode layer, a pressure-sensitive layer and a packaging layer, and sequentially stacking the electrode layer, the pressure-sensitive layer and the packaging layer. According to the technical scheme, the range and response of the sensor in the tower can be improved.

A kind of thermomechanical method for regulating precipitated size of silicide in silicon-containing titanium-based composite material, it relates to the field of titanium-based composite material, the method of the present application is to place sintered discontinuous reinforced silicon-containing titanium-based composite material after cutting and polishing in thermomechanical machine, so that the material is uniformly distributed along the temperature distribution in the deformation direction;Thermomechanical treatment is carried out under the condition that the temperature is 600-800 DEG C and the pressure is 100-300 MPa, stop thermomechanical treatment after reaching the specified deformation, unload and air cooling, that is, complete.The present application realizes the accurate regulation of the precipitated size of silicide in titanium-based composite material by adjusting the two parameters of temperature and stress in thermomechanical treatment process simultaneously, and widens the custom interval of the precipitated size of silicide.The present application is applied to the field of in-situ autogenous titanium-based composite material organization design and regulation technology.

The application discloses a kind of multi-station coordinated stator wire harness hot sleeve assembly method and system, it is related to motor component assembly technical field;Construction station twin model, AGV distributes material with RFID label according to tempo, PLC dynamic replenishment;After wire stripping and tin, 3D vision guides mechanical arm and inserts wire according to slot, force control adjusts insertion angle;Double-shaft platform adjusts stator and heating coil coaxial alignment, infrared sensor aims sleeve;PLC controls heating power, time, rotates stator to ensure uniform heating, mechanical arm advances sleeve and pressure monitoring;Air cooling-water cooling-natural cooling, temperature feedback adjusts parameter;Insulation, appearance, conduction, tension detection, data binding stator ID upload traceability.The application improves efficiency through digital twin, optimizes hot sleeve parameters to ensure fit quality, graded cooling enhances stability, full-dimension detection and traceability improves controllability, intelligent early warning reduces maintenance cost, adapts to batch production demand.

A turbine housing is disclosed, which defines: an inlet; an outlet; first and second volutes; and an axis of the housing. The first and second volutes respectively define first and second flow passages between the inlet and the outlet which respectively define first and second volute exits distal the inlet. The first and second volutes are defined around the axis. Each of the first and second volutes defines a critical plane. The first and second volutes are separated by a dividing wall. A thickness of the dividing wall varies with distance from the inlet. A thickness distribution of the dividing wall as a function of distance from the inlet is such that at least a portion of the dividing wall upstream of the critical planes of the first and second volutes has a thickness that is greater than the thickness of the dividing wall at said critical plane (s) by at least a first factor and wherein the first factor is 1.3 or greater. A method for designing a turbine housing of this type is also disclosed, the method comprising selecting a thickness distribution of the dividing wall upstream of critical planes of the first and second volutes in dependence on a thermomechanical performance of the turbine housing.

The application discloses a kind of high thickness of high bulk pulp and its preparation process, belong to papermaking technical field.The technical scheme is as follows: including the following steps, raw material preparation and pre-soaking treatment, reaction bin reaction, high consistency refining treatment, bleaching, latent elimination, low consistency refining, screening and washing, 1) raw material preparation and pre-soaking treatment: the raw material wood chip is broken, then pre-soaking is carried out, control pre-soaking temperature 80~90 ℃, pH value 9.8~10.2, liquid level ≥50%, ADI back pressure ≥4bar, NaOH dosage is 1.5%~2.0% of dry wood chip weight;2) high consistency refining treatment: the wood chip after pre-soaking is sent into high consistency refiner for refining, refining consistency 35~45%;3) bleaching: pulp after refining is sequentially subjected to one-stage bleaching and two-stage bleaching.The application process has high stability, and can realize the synchronous and stable improvement of bulk and freeness.

Title: Cryogenic equipment assembly such as a cryogenic exchanger assembly, optimized for thermomechanical contraction tolerance. The invention relates to an assembly (1) of cryogenic equipment (10, 20), said assembly (1) comprising: - a first cryogenic equipment (10) and a second cryogenic equipment (20) whose connection means (10B, 20B) are made of a first material, - a piping routing (30) fluidly connecting the first cryogenic equipment (10) and the second cryogenic equipment (10), - a main support (40) made of a second material having thermomechanical characteristics different from those of the first material, - an intermediate support (50) made of a material having thermomechanical characteristics such as those of the first material, the first cryogenic equipment (10) and the second cryogenic equipment (20) comprising support means (10A, 20A),preferably made of said first material, each support means (10A, 20A) being fixed to the main support (40) and to the intermediate support (50), each support means (10A, 20A) being fixed to said main support (40) with one degree of freedom. Figure for the abbreviation: Figure 2,

The invention belongs to the technical field of titanium alloy casting machining, and particularly relates to a titanium alloy casting thermal mechanical correction system and method.The titanium alloy casting thermal mechanical correction system comprises a vacuum box, a correction tool and an induction heating device, the correction tool and the induction heating device are arranged in the vacuum box, and the correction tool is used for assembling a casting to be corrected; the induction heating device is movably arranged relative to the correction tool so as to heat a to-be-corrected area of the to-be-corrected casting; and the vacuum box body is externally connected with a vacuum pump and an inert gas system so as to regulate and control the vacuum degree in the vacuum box body. According to the titanium alloy casting thermal mechanical correction system, the problem that the surface of the casting is polluted in the thermal mechanical correction process is effectively solved.

The application discloses an L12 phase reinforced FCC type multi-component alloy and a preparation method thereof, and belongs to the field of high-entropy alloys and preparation technologies thereof.The L12 phase reinforced FCC type multi-component alloy comprises the following components in percentage of atoms: 42-45% of Ni, 21-24% of Co, 7-10% of Fe, 9-12% of Al, 10-13% of Ti and 1-3% of B.The application uses high-purity pure metals as raw materials, and through simple thermal mechanical treatment, a structure of "fine crystal + annealing twin crystal + L12 phase" is constructed, so that the toughening of the FCC type high-entropy alloy is realized, the room temperature yield strength of the alloy reaches 1063 MPa, the room temperature tensile strength reaches 1696 MPa, and the fracture elongation reaches 25.9%.

The invention discloses a liquid metal flexible connection method and a flexible connection structure. The method mainly comprises the following steps of: manufacturing a solder mask layer on the surface of a chip to form a patterned chip bonding pad; preparing a circuit board; a liquid metal bump array or a linear pattern is manufactured through the piezoelectric driving type piezoelectric driving injection valve; mounting a chip; performing low-temperature backflow interconnection; and finally, bottom glue filling and curing are carried out. The interconnection structure provided by the invention adopts a sandwich composite structure of chip-liquid metal / bottom filling glue-circuit board. Wherein the liquid metal layer can decouple thermal strain between different materials at an interface, and meanwhile, excellent electric conduction and heat conduction performance is kept. The structure can effectively eliminate the thermal mechanical stress generated by the chip bonding layer, significantly reduce the shear stress between the chip and the circuit board, and improve the reliability and stability of the packaging structure.

The application relates to the technical field of metal matrix composite material preparation, in particular to a super-high-strength gradient structure Ni-Ti-based composite material and a preparation method thereof, the Ni-Ti-based composite material has a three-dimensional gradient structure; the preparation method comprises the following steps: S1, preparing Ni-Ti pre-alloyed powder; S2, mixing the Ni-Ti pre-alloyed powder with TiB2 ceramic particles; S3, hot-pressing sintering; and S4, performing thermal mechanical treatment on the Ni-Ti-based memory alloy composite material. The novel Ni-Ti-based shape memory alloy composite material is prepared by the method combining low-energy ball milling, hot-pressing sintering and thermal mechanical treatment, has super-high strength and excellent shape memory performance, does not need high-precision additive manufacturing equipment, has simple preparation process and relatively low cost; meanwhile, the method can be used for preparing large-size material, and hundreds of kilograms of Ni-Ti-based composite material filaments can be prepared at one time, and the manufacturing efficiency is high.

A movable arthropod harvesting machine includes a frame; wheels connected to the frame for moving along the ground; an attachment surface supported by the frame and configured for being attached to by an arthropod; and an extermination section supported on the frame and configured for exterminating the arthropod on the attachment surface.

A process condition measurement device may include a substrate and a cover. The cover may cover the substrate to protect sensors and interconnects from a process environment, such as from corrosive gases, plasma, and radio frequency signals. The cover may uncover portions of the substrate to improve the thermo-mechanical behavior of the substrate. The cover may uncover portions of the substrate by blank-through holes which are offset from the sensors and interconnects. The cover may also uncover portions of the substrate by grooves formed through the cover. The process condition measurement device may also include a thin-film which is formed over the interconnects. The thin-film may protect interconnects from the process environment. The blank-through holes, the grooves, and the thin-films may be used separately or in combination.

The invention belongs to the technical field of metal composite material preparation, and relates to an interface strengthening magnesium alloy based on LPSO phase in-situ generation as well as a preparation method and application of the interface strengthening magnesium alloy based on LPSO phase in-situ generation, and the interface strengthening magnesium alloy based on LPSO phase in-situ generation comprises a GW103K magnesium alloy plate and an AZ31 magnesium alloy plate which are sequentially laminated and combined, and in the interface area of the GW103K magnesium alloy plate and the AZ31 magnesium alloy plate, one side of the GW103K magnesium alloy plate is provided with a banded structure generated in situ by a 14H-LPSO phase. By combining heterogeneous material interface diffusion and thermal mechanical deformation, controllable construction of an LPSO strengthening phase in a heterogeneous interface preset area is achieved, and the comprehensive mechanical property of the obtained interface strengthened magnesium alloy is excellent.

This invention discloses an in-situ loading testing device and method for particulate matter based on industrial CT scanning, relating to the field of thermomechanics. The device includes a drive assembly, a sensor unit, a fixture assembly, a carbon fiber support cylinder, a heat insulation cylinder, a heating module, a gas filling and discharging system, and a sensor cooling and protection unit. The fixture assembly is surrounded by a heat insulation cylinder to form a sealed space, ensuring the sample can be tested in a specific gas atmosphere. Heating is achieved by heating the sample with a heating plate and introducing gas to uniformly heat it. A quick-connect water nozzle is connected to the top of the device, allowing connection to a water chiller for water cooling of the fixture assembly. The loading base is connected to the CT turntable using screw locking. This invention can fully simulate the thermomechanical changes of a particle bed under different thermal stresses and gas atmospheres. While heating and loading the sample, industrial CT scanning can be used to scan the loading process and internal microstructural changes of the sample in situ.

An electrical steel strip friction stir welding method is provided that is able to inhibit the occurrence of coil joint fracture on a production line caused by degradation of mechanical properties and shape of the coil joint, under high work efficiency conditions. Double-sided friction stir welding with post-cooling is carried out under conditions so that the steel microstructures of the joined portion and the thermo-mechanically affected zone formed by joining become mainly ferrite phase, the conditions simultaneously satisfying the relationships of Expressions (1) to (4).

The invention relates to the technical field of solid-state battery electrolyte materials, in particular to a sulfide solid-state electrolyte and a preparation method and application thereof. The sulfide solid-state electrolyte comprises a core layer and a gradient coating layer from inside to outside; the core layer is a Li7P3S11-LiI-Li3N composite phase, the doping amount of LiI is 5%-10% of the mass of Li7P3S11, and the doping amount of Li3N is 2%-5% of the mass of Li7P3S11; the gradient coating layer is an Al2O3-Li3PO4 composite layer, the thickness of the gradient coating layer is 50-200 nm, the content of Al2O3 is gradually reduced from inside to outside, and the content of Li3PO4 is gradually increased from inside to outside; a low-temperature solvothermal-mechanochemical activation composite process is adopted to replace a traditional high-temperature solid-phase method, the preparation temperature is reduced to 350 DEG C or below, energy consumption is reduced by 40% or above, meanwhile, component segregation caused by high temperature is avoided, and component uniformity of the core layer is remarkably improved.

The application discloses a low-cost high-strength aluminum-lithium alloy for a space cabin body and a preparation method thereof, and belongs to the technical field of aluminum-lithium alloys.The aluminum-lithium alloy comprises the following components in mass fraction: 91.5-94.5 parts of aluminum, 3.9-4.2 parts of copper, 1.0-1.5 parts of lithium, 0.2-1.0 parts of magnesium, 0.2-0.4 parts of silver, 0.3-0.8 parts of zinc, 0.10-0.12 parts of zirconium and 0.15-0.25 parts of mixed rare earth; the mixed rare earth is a mixed rare earth of cerium and lanthanum, and the mass ratio of cerium to lanthanum is (1.5-2.5):1; the total mass of metal impurities in the aluminum-lithium alloy is not more than 0.15 parts, and the single metal impurity is not more than 0.05 parts; through multi-component micro-alloying design and a precise controllable thermal mechanical treatment process, the application solves the technical problems that the existing aluminum-lithium alloy is high in cost due to the dependence on high-content noble metals and is anisotropic in mechanical properties due to strong deformation texture, and provides an ideal material which is excellent in comprehensive performance and economically feasible for a space cabin structure.

Soft, elastically deformable composites of multifunctional materials for electronics, robotics, and reconfigurable structures. Liquid metal (LM) droplets dispersed in elastomer matrices has unique combinations of soft mechanical response with exceptional electrical and thermal functionalities. These properties are strongly dependent on the material composition and microstructure. Control of LM microdroplet morphology to program mechanical and functional properties is by annealed-deformation shaping LM droplets in soft composites to create programmable microstructures in stress-free materials. Thermo-mechanical shaping is one example of annealed-deformation shaping. This enables LM loadings up to 70% by volume with prescribed particle aspect ratios and orientation, enabling control of microstructure throughout the bulk of the material. Through this microstructural control in soft composites, a material which simultaneously achieves a thermal conductivity as high as 13.0 W m−1 K−1 (>70× increase over polymer matrix) with low modulus (<1.0 MPa) and high stretchability (>750% strain) is demonstrated in stress-free conditions.

The invention discloses a ternary particle size nanometer aluminum oxide / epoxy resin composite material and a preparation method thereof. The method comprises the following steps: respectively carrying out surface modification treatment on nanometer aluminum oxide particles I, nanometer aluminum oxide particles II and nanometer aluminum oxide particles III which are different in average particle size distribution to obtain modified nanometer aluminum oxide particles I, modified nanometer aluminum oxide particles II and modified nanometer aluminum oxide particles III; mixing according to a certain weight ratio to obtain a modified ternary nano aluminum oxide compound filler; mixing epoxy resin, the modified ternary nano aluminum oxide compound filler and a curing agent, and performing stirring and vacuum defoaming to obtain composite slurry; and curing and molding the composite slurry to obtain the ternary particle size nano aluminum oxide / epoxy resin composite material. The ternary-particle-size nanometer aluminum oxide particles are adopted as the filler, so that the composite material can keep good thermal mechanical stability under the condition of low filling amount, has good fluidity and plasticity, and is convenient to process and form.

The invention belongs to the field of ultrahigh-strength steel materials, and particularly discloses high-strength medium manganese steel with a layered austenite-martensite structure and a preparation method of the high-strength medium manganese steel. The preparation method of the medium manganese steel comprises the following steps: smelting a steel ingot with specific components; forging and hot rolling are conducted; carrying out two-phase region annealing and air cooling on the hot-rolled plate; reheating the annealed steel plate to the same two-phase region temperature, and carrying out warm rolling; then cold rolling is carried out; and finally, low-temperature annealing is conducted on the cold-rolled sheet at the temperature of 180-220 DEG C. According to the method, the innovative thermal mechanical treatment of annealing and warm rolling is adopted, low-temperature tempering is combined, austenite and martensite are successfully distributed in a layered mode, and the problem that strength and plasticity of the ultrahigh-strength steel are difficult to consider at the same time is effectively solved. The prepared medium manganese steel has ultrahigh strength and good plasticity, the yield strength of the medium manganese steel is larger than 2 GPa, the tensile strength of the medium manganese steel is larger than 2.5 GPa, and meanwhile the total ductility of the medium manganese steel is kept at 9%-10%.

Improved semiconductor chip package thermo-mechanical cooling assembly are disclosed. An example An apparatus includes: a bolster plate to be coupled to a back plate, the bolster plate and backplate to sandwich a circuit board therebetween; a loading plate including a first fixture, the first fixture to engage a load stud protruding from the bolster plate; and a heat sink base including a second fixture, the second fixture to engage a pin protruding from the loading plate.