3579 results about "Thermal treatment" patented technology

The invention provides wafer-level reflow soldering equipment, belongs to the technical field of reflow soldering, and solves the problems that existing reflow soldering equipment is low in efficiency, poor in wafer reflow soldering treatment effect and the like. Comprising an EFEM system and a process area box arranged on the rear side of the EFEM system, two wafer loading and unloading machines are arranged on the front side of the EFEM system, a control system is arranged on the side portion of the EFEM system, a transfer robot and an equipment fan filter are arranged in the EFEM system, and a rotary welding system, a valve terminal box, a power box, a power distribution cabinet, an exhaust system and a formic acid storage tank are arranged in the process area box. The formic acid storage tank is connected with the rotary welding system through a pipeline, and an air inlet of the formic acid storage tank is connected with an external liquid nitrogen tank through a pipeline. According to the invention, the wafer can be stably carried and placed, temperature rise and temperature reduction suspension uniform heating treatment are carried out, rapid temperature reduction suspension uniform cooling treatment is carried out, positioning loading and auxiliary temperature reduction cooling treatment are realized, high wafer processing efficiency is ensured, and the processing effect is good.

The invention discloses a SnO2 / SnS2 / AgS nano material with piezoelectric electro-catalytic tooth whitening and sterilizing performance and a preparation method and application thereof, and the preparation method comprises the following steps: (1) dripping a silver nitrate aqueous solution into a prepared SnO2 / SnS2 nano material aqueous dispersion, carrying out hydro-thermal treatment for 2 hours, centrifuging, washing and drying to obtain a SnO2 / SnS2 / Ag2S ternary semiconductor heterojunction nano material; (2) food indigo is adopted to simulate tooth surface pigments, piezoelectric electro-catalytic degradation is carried out by using the SnO2 / SnS2 / Ag2S ternary semiconductor heterojunction nanomaterial, and the pigment degradation efficiency can reach 95% or above; (3) the SnO2 / SnS2 / Ag2S heterojunction nanomaterial is used for piezoelectric electro-catalysis treatment of the streptococcus mutans pellicle, and the antibacterial rate of the pellicle can reach 90% or above; and (4) compared with a 3% H2O2 aqueous solution for treating the enamel surface structure, the SnO2 / SnS2 / Ag2S nano-material piezoelectric electro-catalysis treatment of teeth has small damage to the enamel surface structure. According to the invention, more nano materials with tooth whitening and sterilizing performance and the preparation method thereof are provided, so that the problems of single variety, single preparation method, low electron-hole separation efficiency and large side effect of the existing tooth whitening and sterilizing nano materials are solved.

The invention discloses copper-containing maraging ultrahigh-strength steel and a preparation method thereof, and belongs to the field of steel and iron materials. The copper-containing maraging ultrahigh-strength steel is prepared from the following chemical components in percentage by mass: 14.5 to 16.0 percent of Co, 17.0 to 18.0 percent of Ni, 6.0 to 8.0 percent of Mo, 1.0 to 1.5 percent of Ti, 0.5 to 1.0 percent of Cu, 0.5 to 1.0 percent of Al and the balance of Fe and inevitable impurities. The preparation method comprises the steps of vacuum smelting, high-temperature homogenization, forging cogging, thermal deformation and thermal treatment. According to the copper-containing maraging ultrahigh-strength steel prepared through the preparation method, under the condition that the grain size is larger than or equal to 8.0, the tensile strength of the material reaches 2800 MPa or above, meanwhile, the elongation of 7% or above is kept, and the application requirements of different fields for the ultrahigh-strength steel with the tensile strength of 2800 MPa or above can be met.

The invention discloses a method for preventing a high-carbon tool steel hot rolled steel coil from being flattened, which comprises the following steps of: providing a continuous casting slab which comprises the following components in percentage by mass: 0.65 to 1.35 weight percent of C, 0 to 1.6 weight percent of Si, 0 to 1.2 weight percent of Mn, 0 to 1.2 weight percent of Cr, less than or equal to 0.030 weight percent of P, less than or equal to 0.030 weight percent of S and the balance of iron and inevitable impurities; the charging temperature of the continuous casting sheet billet is larger than or equal to 300 DEG C, the continuous casting sheet billet is fed into a heating furnace to be heated, the discharging temperature of the continuous casting sheet billet is 1150-1250 DEG C, and a first sheet billet is obtained; the first plate blank is subjected to rough rolling, the rough rolling and finish rolling temperature ranges from 1050 DEG C to 1150 DEG C, and an intermediate blank is obtained; the intermediate billet is subjected to finish rolling, the finish rolling temperature of finish rolling is 800-950 DEG C, and finish rolled steel is obtained; laminar cooling is conducted on the finish-rolled steel in a front-section centralized cooling mode, final fine adjustment water and front and rear side spraying of laminar cooling are closed, the temperature of the finish-rolled steel is reduced to the first target temperature to the phase transformation point, and cooled steel is obtained; and the cooled steel is coiled at the temperature of 590-690 DEG C, the coiling tension is increased by 10%-20% in the coiling process, and a hot rolled steel coil of the high-carbon tool steel is obtained.

The invention discloses a bolt heat treatment device and technology, and relates to the technical field of heat treatment devices.The bolt heat treatment device comprises a heat treatment box, two bidirectional driving rods are symmetrically arranged on the inner wall of the heat treatment box, and two heat insulation plates are arranged between the two bidirectional driving rods in a threaded sleeving mode; the two heat insulation plates are movably inserted into the left side and the right side of the heat treatment box correspondingly. When a bolt frame moves, a guide rod slides along the inner wall of a guide groove, so that the bolt frame is promoted to shake left and right, bolts are promoted to shake to shake off chippings on the surfaces of the bolts, meanwhile, the shaken chippings are collected through a heat insulation plate, and the possibility that the chippings influence the heat treatment effect of the bolts is reduced; through the toothed plate piece, the bidirectional driving rod is conveniently driven to rotate, the heat insulation plate is promoted to move, and therefore the heat treatment box is promoted to be opened, the bolt frame moves downwards to the position below the heat insulation plate, the heat insulation plate is reset along with continuous movement of the toothed plate piece, and therefore the heat treatment box is sealed, and the possibility of heat loss is reduced.

The invention discloses an epoxy resin-based NTC (Negative Temperature Coefficient) composite material containing ionic liquid and carbon black as well as a preparation method and application of the epoxy resin-based NTC composite material. The preparation method of the material comprises the following steps: mixing the ionic liquid and the epoxy curing agent, heating on a heating table, stirring and mixing at the same time, then adding the epoxy resin, the carbon black, the surfactant and the solvent, mechanically stirring and uniformly mixing, and heating in a vacuum oven to remove the solvent to obtain the material. And then carrying out hot pressing for a certain time through a press vulcanizer at a certain temperature to obtain the epoxy resin-based NTC composite material containing the ionic liquid and the carbon black. The epoxy resin-based NTC composite material containing the ionic liquid and the carbon black has the advantages of high B value, good mechanical strength, high heat conductivity coefficient, high crosslinking density and the like, and the preparation method is simple to operate, mild in reaction condition, low in raw material cost and suitable for large-scale industrial production and application.

The utility model discloses a high-efficiency energy-saving ceramic handicraft firing kiln, which comprises a kiln body and has the beneficial effects that a kiln car and a firing frame are arranged, so that the kiln car can be pulled out of the kiln body, the kiln car is supported in an auxiliary manner through a guide roller at the top of a guide support plate, and the kiln car and the firing frame are pulled out, so that the kiln car can be conveniently fired. Ceramic needing to be fired can be conveniently placed on the firing frame, the position of the kiln car in the kiln body is jacked and fixed through the inner jacking block on the inner side of the kiln door, the kiln car and the firing frame are stably placed in the kiln body, the stability of the position during ceramic firing is improved, and through the arrangement of the heat preservation box and the heat exchange copper gas pipe, high-temperature smoke in the heat preservation box is achieved; gas treated by the oxygen enrichment device in the heat exchange copper gas pipe is heated, the temperature of combustion-supporting gas is increased, the combustion-supporting gas is mixed with gas supplied by the gas pipe in the concentration gas box, the mixture is sprayed out through the ventilation box and the combustion nozzle, ignition is conducted through the ignition rod, and ceramic firing is conducted through fuel.

The invention relates to a method for sequestering CO2, which comprises the steps of providing a starting product comprising at least 20% by mass of one or more of the following components, ultramafic rocks, weathering products of ultramafic rocks, olivine and / or industrial waste materials, homogenizing the starting product and hydro-thermally treating the homogenized starting product in a heat treatment apparatus at a temperature of above 100° C. for at least 24 hours. Furthermore, the converted starting product is dewatered of bound water by means of thermal treatment and / or reaction grinding. Subsequently, the product thus obtained is contacted with CO2, wherein the latter is bound.

The invention discloses a lithium-rich manganese-based positive electrode material with a core-shell structure, the general formula of the lithium-rich manganese-based positive electrode material is Li < 1 + a > Mn < x > Co < y > Ni < z > O < 2-b-d > (XOc) X < d >, the lithium-rich manganese-based positive electrode material has the core-shell structure, the core is a lithium-rich manganese-based material Li < 1 + a > Mn < x > Co < y > Ni < z > O < 2-b > (XOc) doped with disordered polyanions, and the shell is a lithium-rich manganese-based material Li < 1 + a > Mn < x > Co < y > Ni < z > O < 2-d > X < d > doped with gradient non-metal ions. The invention also provides a preparation method of the lithium-rich manganese-based positive electrode material with the core-shell structure, and the lithium-rich manganese-based positive electrode material with the core-shell structure is prepared by adopting a combined means of rapid Joule heat treatment and surface plasma cleaning treatment. The polyanion-doped bulk phase disordered structure design and the surface gradient non-metal ion-doped core-shell structure are realized. Wherein the bulk phase polyanions can fix transition metal elements to inhibit migration of the transition metal elements to a lithium layer, harmful consumption of active sites is reduced, and a lattice structure is stabilized. In addition, strong bond energy between surface nonmetal and transition metal elements can inhibit dissolution of transition metal in the circulation process, irreversible oxidation of oxygen is reduced, and generation of harmful phase change is inhibited.

A drape for a piece of equipment used during a medical procedure may be formed of a flexible sheet of polymeric material. The flexible sheet can have a basin portion shape-indexed to a basin or reservoir of the piece of equipment over which the drape is intended to be draped. The flexible sheet can also have a side sheet portion connected to the basin portion. The side sheet portion can drape down the basin or reservoir of the piece of equipment over which the drape is draped. The basin portion of the flexible sheet can be collapsible. As a result, the drape can be collapsed into planar package for storage. Upon being removed from the package, the basin portion of the drape can be expanded to conform to the walls of the basin of the piece of equipment over which the drape is deployed.

The invention relates to the technical field of fused salt phase change materials, and discloses a fused salt phase change energy storage material and a preparation method and application thereof. The preparation method of the fused salt phase change energy storage material comprises the following steps: mixing NaNO3 and KNO3 according to a mass ratio of 6: 4, grinding, heating to 400 DEG C, melting, cooling, and grinding again to obtain eutectic salt; the preparation method comprises the following steps: dispersing few-layer graphene oxide and sodium ascorbate in water, and uniformly mixing to obtain slurry; performing hydro-thermal treatment on the slurry, and performing freeze drying to obtain graphene aerogel; dissolving the eutectic salt in water to prepare a saturated solution, and carrying out dipping treatment on the graphene aerogel in the saturated solution under vacuum; and freeze-drying a product subjected to dipping treatment to obtain the fused salt phase change energy storage material. According to the preparation method, the molten salt uniformly permeates pores of the graphene aerogel by adopting a vacuum impregnation method, and the infiltration angle of graphene and the molten salt is large, so that the molten salt is not easy to leak, the heat conductivity is further improved, and the heat conduction efficiency and the phase change stability are remarkably improved.

The invention relates to the technical field of titanium alloy welding deformation control, in particular to a device and method for controlling titanium alloy welding deformation, and the method comprises the following specific steps: S1, preparation before welding: determining a reversible deformation device according to a welding seam form of a titanium alloy part, and carrying out assembly and spot welding; the assembled titanium alloy welding part is fixed to a reversible deformation device, and it is ensured that the part does not deform in the welding process; s2, a welding process; a thermocouple is placed on the surface of a weld joint, a local heating belt and heat preservation cotton are laid, and the heating belt, the thermocouple and local heating control equipment are connected for heat treatment; and S4, measurement of welding deformation is carried out. According to the method, a complete and easy-to-operate technological process is constructed by combining pre-welding anti-deformation tool fixing and post-welding local heating treatment technologies, and the problem of welding deformation with considerable numerical values and complex forms generated by multiple welding procedures of a large complex titanium alloy structure is solved.

The invention relates to the technical field of charging pile cables, and discloses an anti-freezing low-temperature charging pile cable which comprises a charging pile cable body, a heat preservation sleeve is fixed to the outer side of the charging pile cable body, a liquid inlet pipeline is fixed to the top of the heat preservation sleeve, and a fixed channel is fixed to the inner top of the heat preservation sleeve. A liquid outlet pipeline is fixed to the top of the fixed channel and penetrates through the top of the heat preservation sleeve. According to the anti-freezing low-temperature charging pile cable, before the device is used, the liquid inlet pipeline and the liquid outlet pipeline need to be connected with the anti-freezing liquid heating equipment, the anti-freezing liquid heating equipment can heat anti-freezing liquid, the anti-freezing liquid at the proper temperature circularly flows in the heat preservation sleeve, and continuous heat preservation and anti-freezing treatment can be conveniently conducted on the charging pile cable body; and the baffle rings are provided with openings, and the directions of the openings in the two adjacent baffle rings are opposite, so that the anti-freezing solution can be conveyed rightwards in the heat preservation sleeve in an S shape, and the anti-freezing solution can fully and uniformly act on the charging pile cable main body.

The invention discloses a foam iron-nickel surface in-situ growth platinum modified nickel-iron layered double hydroxide bifunctional material and a preparation method and application thereof.The preparation method comprises the steps that a foam iron-nickel substrate is immersed in an acid solution containing chloroplatinic acid, heating treatment is conducted for a certain period of time, and then the nickel-iron layered double hydroxide bifunctional material is obtained; and a nickel-iron layered double-metal hydroxide mixed material modified by platinum nanoparticles grows on the surface of the foam iron-nickel in situ. In the preparation process of the one-step method, nickel ions or / and iron ion salts and sacrificial agents do not need to be additionally added, atom economy is good, reaction conditions are mild, energy consumption is low, and meanwhile the problem that the catalyst is prone to falling off due to multiple times of operation and washing is solved. The platinum / ferronickel layered bimetal hydroxide / foam iron nickel electrode prepared by the method shows excellent hydrogen production and oxygen production activity in an alkaline water electrolysis reaction.

The invention belongs to the technical field of aluminum plate machining, and particularly relates to an aluminum plate longitudinal cutting device which comprises a supporting table, and a discharging roller and a collecting roller are arranged at the top of the supporting table. By arranging the induction coil, the first permanent magnet, the second permanent magnet and the electromagnetic heating plate, the aluminum plate which is not longitudinally cut is heated, the hardness and brittleness of the aluminum plate can be reduced, longitudinal cutting is smoother, the quality of finished products is improved, deformation of the aluminum plate is reduced during longitudinal cutting, and the cutting precision and stability are ensured; by arranging a fixing plate, a shaking plate, piezoelectric ceramic pieces, springs and the like, the two piezoelectric ceramic pieces are placed in a cutting gap of an aluminum plate, when a longitudinal cutter is abraded, the cutting gap can be enlarged, the shaking amplitude of the piezoelectric ceramic pieces in the cutting gap is increased under pushing of the first spring, output current is increased, and the cutting effect of the aluminum plate is improved. And the state of the longitudinal cutter can be conveniently monitored in real time for subsequent detection operation.

The invention discloses a carbon-doped titanium dioxide nanotube-molybdenum disulfide energy-storage antibacterial material and a preparation method thereof. The preparation method comprises the following steps: carrying out primary anodic oxidation on a clean titanium foil in a mixed electrolyte of ethylene glycol, water and ammonium fluoride; after ultrasonic treatment is carried out in a hydrochloric acid solution for set time, secondary anodic oxidation is carried out, and the mixed electrolyte of the secondary anodic oxidation is the same as that of the primary anodic oxidation; annealing the titanium foil subjected to anodic oxidation twice in an argon atmosphere, putting an annealed sample into a mixed solution of sodium molybdate, a sulfur source and glucose, and carrying out hydrothermal treatment; and the titanium foil subjected to hydro-thermal treatment is cleaned and dried, and the carbon-doped titanium dioxide titanium foil with the surface covered with molybdenum disulfide is obtained. The MoS2-coated carbon-doped titanium dioxide nanotube (TNT-C-atMoS2) with high biocompatibility developed by the invention has a synergistic effect of charge antibiosis and chemical sterilization, so that the problem of intractable biological fouling of a titanium-based metal material in ocean engineering equipment is effectively solved.

The invention discloses 3D printing low-carbon concrete containing modified recycled aggregate and a micro-powder reinforcer. The 3D printing low-carbon concrete is prepared by the following steps: (1) putting recycled concrete coarse aggregate into sodium or potash water glass, and performing ultrasonic treatment; then separating the coarse aggregate, performing carbonization treatment, and heating the obtained coarse aggregate to obtain the pretreated recycled aggregate. And (2) placing the pretreated recycled aggregate in saturated lime water, and carrying out heating and heat preservation treatment to obtain the modified recycled aggregate. And (3) forming a wet material from the waste cement slurry powder, gamma-C2S powder and water, performing carbonization treatment on the wet material, performing heating treatment, and grinding the obtained solid to obtain the modified regenerated micro-powder enhancer. And (4) uniformly mixing the cement, the modified recycled aggregate, the fine aggregate, the micro-powder enhancer, the water reducing agent and the water to obtain the concrete. The process provided by the invention not only improves the mechanical strength and fluidity of the 3D printing concrete prepared from the recycled concrete aggregate, but also consumes carbon dioxide and reduces carbon emission.

The invention relates to a silicon-carbon composite material, a preparation method thereof and a lithium ion battery, and belongs to the technical field of alkali metal ion secondary batteries. The preparation method of the silicon-carbon composite material comprises the following steps: 1) adsorbing silane gas by using porous carbon in a silane atmosphere higher than normal pressure to obtain porous carbon adsorbed with silane; and 2) heating the porous carbon adsorbed with the silane, so that the silane gas adsorbed by the porous carbon is cracked to generate monatomic silicon which is deposited on the porous carbon. According to the preparation method of the silicon-carbon composite material disclosed by the invention, the amount of silicon deposited on the surface of porous carbon can be greatly reduced, so that direct contact between silicon and an electrolyte is reduced, formation of an SEI (Solid Electrolyte Interface) film and improvement of stability are facilitated, and performances such as the first discharge specific capacity, the first efficiency and the capacity retention ratio of the silicon-carbon negative electrode material are further improved.

A soaking-device is usable to soak a given body part of a user. The body part may be a face or a portion of the face of the user. The user may be a person or other animal. The soaking-device includes a vessel-subassembly. The vessel-subassembly includes a wettable-subassembly. The wettable-subassembly itself and / or interaction of the wettable-subassembly with a part of the vessel-subassembly, its outermost-shell, may not utilize screws or the like mechanical fasteners. The wettable-subassembly may include a neck-gasket for removable physical contact with a neck portion of the user. The wettable-subassembly is configured to hold a volume of an immersion-liquid for the soaking of the body part. Prior to use, the volume of the immersion-liquid may be heated or cooled. A breathing-apparatus may be used. A tower may be placed next to the wettable-subassembly to shine light into and / or to release bubbles into the immersion-liquid.

The invention relates to an ultra-high-purity silver target material and a preparation method thereof, and belongs to the field of target materials, and the ultra-high-purity silver target material comprises the following raw materials in percentage by weight: 99.99% of high-purity silver, 0.05%-0.15% of palladium, 0.025%-0.075% of iridium, 0.1%-0.3% of neodymium and 0.1%-0.3% of praseodymium. According to the ultra-high-purity silver target material and the preparation method thereof, 5N-grade high-purity silver is adopted as a base material, trace palladium, iridium, neodymium, praseodymium and other elements are accurately added, the purity of the target material is remarkably improved and exceeds the purity range in the prior art, the hardness, strength and abrasion resistance of the target material are optimized through the innovative material design, and the service life of the target material is prolonged. The compact uniformity of the material is effectively improved and the internal stress is eliminated through grain refinement and multi-stage heat treatment, in addition, the isotropy of the target material is enhanced through the multi-directional forging process, the consistency of the performance in different directions is ensured, the mechanical performance of the target material is remarkably improved through the improvements, the target material can better adapt to the application environment with the high wear resistance requirement, and the service life of the target material is prolonged. And meanwhile, the conductivity, the reflectivity and the uniformity of a thin film prepared by using the target material are improved.

The invention relates to a thermal treatment device, such as a pasteurizer, cooler or heater, having at least one container feed device for feeding containers each to one mass flow conveyor comprised by the thermal treatment device. The treatment device adjoins the at least one container feed device. The container feed device comprises: an at least one-track infeed conveyor; a first group of a plurality of parallel first conveyors; a second group of a plurality of parallel second conveyors which are arranged so as to be parallel and adjoining the first group. The containers can be transferred from the second group to a mass flow conveyor transversely to the second direction, in the direction. The invention furthermore relates to a method for operating the thermal treatment device with the at least one container feed device.

The invention discloses a method for preparing silicon carbide materials by using coal gasification slag, belonging to the field of solid waste recycling. The solution of the invention includes first pre-treating the coal gasification slag, then performing acid leaching, water washing, suction filtration and drying on the pre-treated coal gasification slag, and then performing Joule heating treatment. After calcination, silicon carbide is obtained; in the Joule heating treatment, the discharge voltage is set to 120V-150V, and the number of discharges is 1-5 times. By performing Joule heating treatment on the coal gasification slag, the reaction time of each Joule heating reaction is extremely short, greatly reducing the energy consumption, and sharply shortening the reaction time, solving the technical problem of high energy consumption caused by the long reaction time in the traditional carbothermal reduction for preparing silicon carbide materials in the prior art.

The invention discloses a modified LaMnO3 perovskite oxide catalyst as well as a preparation method and application thereof, and belongs to the field of catalyst modification. The preparation method of the modified LaMnO3 perovskite oxide catalyst comprises the following steps: (1) preparing the LaMnO3 perovskite oxide; and (2) carrying out acid etching treatment and heat treatment on the LaMnO3 perovskite oxide, and obtaining the LaMnO3 perovskite oxide after the acid etching treatment and the heat treatment are finished. According to the method, perovskite oxide is modified in an etching mode, the LaMnO3 perovskite oxide catalyst with high catalytic activity and high stability is synthesized by adding a heat treatment process, the LaMnO3 perovskite oxide catalyst is used in the process of preparing benzoic acid through methylbenzene solvent-free oxidation, no chlorine element is introduced, and the prepared high-quality benzoic acid can be widely applied to medical treatment and food. When the catalyst is used in a reaction for preparing benzoic acid through selective oxidation of toluene, the conversion rate of toluene can reach 24.8%, the selectivity of benzoic acid can reach 82.7%, and the catalyst has good activity and selectivity.

The invention discloses a high-viscosity polymer reaction stirring device with a self-cleaning function, and relates to the technical field of stirring. The driving motor is arranged at the top of the stirring tank; a centrifugal cleaning member; a warming drying mechanism; and a vibration disengagement member. By arranging a centrifugal contact unit, a transverse rod moves in the direction away from a stirring rod under the action of centrifugal force through rotation of a rotary connecting bin, and in the process, the transverse rod pulls a rotary ring downwards through an extrusion rod, so that a second contact piece is in contact with a first contact piece, and a heater is powered on to operate; at the moment, the heater can heat the air in the stirring tank, and meanwhile, the hot air is dried through the drying bin, so that moisture in residual materials in the stirring tank is reduced, the viscosity between the residual materials and the stirring tank is reduced, and the dried materials are separated from the stirring tank; therefore, the self-cleaning effect of the equipment is achieved.

The invention discloses a method for synergistically hydro-thermally treating sludge based on tea residue and organic acid, which comprises the following steps: mixing sludge with organic acid and tea residue, and performing hydro-thermal treatment and dehydration treatment on the obtained mixed slurry to obtain filtrate and a mud cake. According to the method for carrying out the synergistic hydrothermal treatment on the sludge based on the tea residues and the organic acid, the hydrothermal reaction temperature can be remarkably reduced under the synergistic effect of the tea residues and the organic acid, meanwhile, the sludge is subjected to the synergistic hydrothermal treatment through the organic acid and the tea residues, the dehydration performance of the sludge can be effectively improved, and meanwhile generation of nondegradable organic matter such as melanoidins can be effectively inhibited; therefore, efficient, environment-friendly, recycling and low-cost treatment of the sludge can be realized by fully utilizing the characteristics of the organic acid and the tea residues and cooperating with a hydrothermal treatment technology, and the method has the advantages of low reaction temperature, high treatment efficiency, low energy consumption, good dehydration effect, greenness, environmental protection and the like; wide application prospects and popularization values are realized.

A soaking-device is usable to soak a given body part of a user. The body part may be a face or a portion of the face of the user. The user may be a person or other animal. The soaking-device includes a vessel-subassembly. The vessel-subassembly includes a wettable-subassembly. The wettable-subassembly itself and / or interaction of the wettable-subassembly with a part of the vessel-subassembly, its outermost-shell, may not utilize screws or the like mechanical fasteners. The wettable-subassembly may include a neck-gasket for removable physical contact with a neck portion of the user. The wettable-subassembly is configured to hold a volume of an immersion-liquid for the soaking of the body part. Prior to use, the volume of the immersion-liquid may be heated or cooled. A breathing-apparatus may be used. A tower may be placed next to the wettable-subassembly to shine light into and / or to release bubbles into the immersion-liquid.

The present invention relates to a modified inorganic particle doped water-based paint and a preparation method thereof, belonging to the technical field of water-based paint. The raw materials for preparing the water-based paint include, by weight, 35-50 parts of water-based acrylic resin, 5-10 parts of modified inorganic particles, 8-12 parts of polyvinyl alcohol, 0.1-0.5 parts of defoaming agent, and 0.1-0.5 parts of dispersant; the modified inorganic particles are obtained by mixing nano titanium dioxide flame retardant particles, organic acid and biomass and then subjecting them to hydrothermal treatment, and the nano titanium dioxide flame retardant particles are obtained by subjecting polyimide particles and nano titanium dioxide particles to thermal treatment. The modified inorganic particles proposed by the present invention have good dispersibility and strong interaction force with the water-based paint matrix. Nano titanium dioxide is used instead of nano alumina, applied to water-based paint, and the flame retardancy of the water-based paint is increased. Organic acid, biomass powder and nano titanium dioxide flame retardant particles are used for hydrothermal treatment to increase the antibacterial durability of the water-based paint.

The invention discloses a production method of a non-annealing cold heading steel hot-rolled wire rod, and relates to the technical field of steel production, the method comprises the following steps: selecting a steel billet meeting the production specification requirement of the cold heading steel wire rod, and carrying out coping finishing and preheating treatment on the steel billet to be processed; the steel billet is conveyed to a large-compression-ratio rolling unit, the hot rolling process is monitored in real time, hot rolling segmented regulation and control are conducted, multi-pass temperature gradient rolling is achieved, and a cold heading steel wire rod formed through hot rolling is obtained; and the hot-rolled cold heading steel wire rod is conveyed to a heat preservation tunnel furnace, a cold heading steel wire rod finished product is obtained through segmented controlled cooling and surface treatment, and production of the annealing-free cold heading steel hot-rolled wire rod is achieved. According to the method, the advanced rolling mill unit with the large compression ratio is adopted for producing the cold heading steel wire rods of different specifications, the heat preservation tunnel furnace is adopted, the cooling temperature and the cooling speed of the wire rods are controlled, production of the annealing-free cold heading steel hot-rolled wire rods is achieved, the production process is greatly simplified, the production period is shortened, the production cost is reduced, and the production efficiency is improved.

The invention relates to the technical field of cement-based material preparation, and particularly discloses a preparation method of an anti-carbonization all-solid waste slag-sulphoaluminate cementing material, which comprises the following steps: (1) putting a wet material formed by lead-zinc tailing powder and water into a reaction container, sealing, and heating; and mixing the obtained product with iron powder and / or iron oxide powder and water, stirring, separating out a solid product, and heating and drying in an air atmosphere to obtain the anti-carbonization tailing powder. And (2) mixing the anti-carbonization tailing powder with sulphoaluminate cement powder, and carrying out mechanical grinding treatment to obtain the modified sulphoaluminate cement. And (3) uniformly mixing blast furnace slag powder, the modified sulphoaluminate cement, fly ash, waste gypsum powder, an alkali activator, gypsum and a water reducing agent serving as raw materials to obtain the cementing material. According to the invention, the resource utilization of industrial solid waste is realized, the carbonization resistance of the cementing material is effectively improved, and the service durability of the cementing material is improved.