10results about How to "Raise room temperature" patented technology

The invention relates to the technical field of alloy preparation, particularly provides a 650 DEG C high temperature resistant titanium-based composite material plate, and further provides a preparation method of the plate. The titanium-based composite material plate resistant to the high temperature of 650 DEG C, provided by the invention, is prepared from the following chemical components in percentage by mass: 6.0 percent to 7.0 percent of Al, 1.0 percent to 3.0 percent of Zr, 0.5 percent to 2.0 percent of Mo, 0.4 percent to 1.0 percent of Nb, 0.4 percent to 1.0 percent of W, 0.1 percent to 0.4 percent of Si, 0.4 percent to 0.7 percent of B, 0.01 percent to 0.10 percent of C and the balance of Ti and inevitable impurities. According to the titanium-based composite material component system provided by the invention, a vanadium element which is easy to generate interface reaction at high temperature is abandoned, and refractory metal elements such as niobium and tungsten are adopted to cooperate with a ceramic reinforced phase formed by boron, carbon and the like, so that the high-temperature performance and the thermal stability of the material are improved; meanwhile, by controlling the content of molybdenum, aluminum and other elements within a specific interval, the hot working performance of the material is remarkably improved while high strength is maintained, and the contradiction between insufficient high-temperature performance and poor hot working performance of a traditional titanium-based composite material is effectively solved.

The utility model relates to the technical field of building material detection and test equipment, and discloses a concrete curing chamber which comprises a curing chamber body, a magnetic suction door and a magnetic suction frame. According to the concrete curing room, external heat exchange is effectively isolated by arranging the heat preservation layer, energy loss is reduced, the energy-saving effect is achieved, the room temperature can be rapidly increased within a short time through the multiple sets of graphene far-infrared heating pieces, when the temperature reaches the preset upper limit, a system can automatically start a cooling mechanism and switch to a refrigeration mode, and the energy-saving effect is achieved. By means of the application of the low-temperature mute scroll compressor, the micro-channel condenser and the evaporator, energy consumption is reduced, heat dissipation efficiency is improved, in addition, a humidification and dehumidification system is further integrated in the cultivation chamber, moisture in air is increased through an ultrasonic atomizer, meanwhile, redundant moisture is removed through a solid drying agent adsorption unit, constant indoor relative humidity is ensured, and the energy consumption is reduced. And due to the application of the low-noise direct-current fan and the HEPA filter screen, uniform distribution of airflow and purification of air quality are achieved.

The invention discloses Ti-based alloy powder, which is prepared from the nominal components in percentage by atom: (5 to 10) of Ti, (2 to 5) of Al, (1 to 3) of V, (0.5 to 2.0) of Y2O3 and the balance of Ti and inevitable impurities, the preparation method comprises the following steps: 1, weighing raw material powder; 2, charging and sealing; 3, ball milling; and 4, discharging to obtain Ti-based alloy powder. According to the Ti-based alloy powder disclosed by the invention, high-volume nano Y2O3 is introduced and uniformly dispersed in a Ti matrix to form a dispersion strengthening phase, so that the room-temperature and high-temperature strength, creep resistance and thermal stability of the alloy are improved; according to the mechanical alloying process, the ball-to-material ratio, the rotating speed and the time of ball milling are strictly controlled, intermittent ball milling and external cooling are adopted to control temperature rise and pollution, it is guaranteed that Y2O3 forms nanocrystalline and a dispersion strengthening phase in a Ti matrix, the strength, hardness and thermal stability of the alloy are improved, the process is controllable, and repeatability is good.

This invention provides a battery comprising an electrolyte and a negative electrode, wherein the negative electrode active material comprises a silicon-containing material; the electrolyte comprises a first additive and a second additive, the first additive comprising fluoroethylene carbonate, and the second additive comprising a compound having a structure of Formula 1, wherein R1-R3 are each independently selected from substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C10 alkenyl, or substituted or unsubstituted C2-C10 alkynyl groups, and at least one unsaturated group is included in R1-R3. The battery provided by this invention uses silicon material as the negative electrode and exhibits excellent room temperature and high temperature cycling performance, as well as high temperature storage performance.

This invention discloses a highly efficient degassing refining agent for magnesium alloy ingots and its preparation method in the field of molten metal purification. The refining agent is composed of lanthanum fluoride-supported titanium carbide nanocomposite, calcium zirconate and graphene oxide nanohybrid, and various components such as anhydrous magnesium chloride, anhydrous sodium fluoride, anhydrous potassium chloride, metallic calcium powder, barium carbonate, and alumina micro powder in a specific ratio. Its preparation mainly includes: first, dispersing titanium carbide nanoparticles and reacting them with a lanthanum fluoride-containing solution, followed by hydrothermal treatment and calcination to obtain the lanthanum fluoride-supported titanium carbide nanocomposite; second, mixing a zirconium calcium salt solution with a graphene oxide dispersion, followed by urea co-precipitation, hydrothermal reaction, and calcination under a protective atmosphere to obtain the calcium zirconate and graphene oxide nanohybrid. This invention, through the synergistic effect of two inorganic modifying compounds, can deeply remove hydrogen and inclusions from magnesium melt, thereby significantly improving the metallurgical quality and overall performance of magnesium alloy ingots.

The present application relates to a kind of preparation methods of net basket organization TC11 titanium alloy blade, comprising the following steps: S1: TC11 titanium alloy ingot is heated to 1100~1150 ℃, after 8h~16h heat preservation, furnace forging, and forging ratio is not less than 4;S2: blank in S1 is 20 ℃~50 ℃ above T beta phase transition point is carried out 2~5 fire times of upsetting and drawing deformation, and total forging ratio is not less than 10;S3: the forging blank in S2 is heated to 10 ℃~30 ℃ above T beta phase transition point, is formed by 2~4 fire times on precision forging machine, S4: the rod prepared by S3 is heated to 10 ℃~30 ℃ above T beta phase transition point, is formed by 1~2 fire times using hammer forging on hammer forging machine;S5: the blade of hammer forging formation of S4 is heat treated and surface processing, obtains net basket organization TC11 titanium alloy blade.The blade surface of the present application is formed gradient type permeation oxygen layer after processing, so that the fatigue property of blade is greatly improved.

The application provides a synergistic composite toughening PP-R pipe material and a preparation method and application thereof, and belongs to the technical field of PP pipes. The synergistic composite toughening modified PP-R pipe material provided by the application can improve the toughness of the material at room temperature and low temperature by adding an elastomer toughening agent. The addition of PP-B and PE can limit the excessive reduction of tensile strength and yield strength caused by the addition of the elastomer, so as to maintain the balance between toughness and rigidity. The addition of a compatibilizer can improve the interface bonding problem of the blend, especially the dispersion effect of the elastomer toughening agent and PE, and reduce the phase separation between PP and the elastomer and PE. The application forms a PP-R / elastomer / PE / PP-B multi-component synergistic composite toughening system through various components, realizes the complementation and synergistic improvement of the performance of the materials, and thus improves the performance of the PP-R pipe.

The application relates to the technical field of polypropylene materials, in particular to a modified polypropylene composite material and a preparation method thereof. According to weight parts, the raw materials comprise the following components: 62-78 parts of polypropylene resin, 6-11 parts of reinforcing particles, 2.8-5.5 parts of ethylene-octene copolymer, 2-4 parts of an interface bridging agent, 3-8 parts of a stabilizer and 0.5-1 part of a composite additive; the raw materials of the reinforcing particles comprise alkali-treated bamboo fibers, halloysite nanotubes and a titanate coupling agent. After being treated, the alkali-treated bamboo fibers expose active hydroxyl groups on the surface, the active hydroxyl groups are bridged with aluminum hydroxyl groups and silicon hydroxyl groups on the outer wall of the halloysite nanotubes through hydrogen bonds and the titanate coupling agent, the ethylene-octene copolymer dispersion phase is embedded in a polypropylene matrix, octene branched chains of the ethylene-octene copolymer can form physical entanglement with polypropylene molecular chains, buffer is provided in a low-temperature environment, and the normal-temperature and low-temperature impact resistance of the composite material is improved.

This invention discloses a surface treatment method for titanium alloys. The specific steps are as follows: placing the titanium alloy structural component or thin-walled component in an oxygen atmosphere at 0.5 to 3 times the standard atmospheric pressure, or a mixed atmosphere with an equivalent oxygen concentration, and holding it at 400℃ to 420℃ for 50 to 200 hours, results in an oxide layer with a thickness less than 3 μm and greater than 1 μm on the surface of the titanium alloy sample, and a gradient oxygen-permeable structure forming on the subsurface. The surface treatment process of this invention is simple to operate, highly adaptable, and effective, and can be applied to various complex titanium alloy structural components or thin-walled components.

All season self-regulating air closed loop enclosure wall, cover high quantitative configuration method and air flow regulation method. At present, there is a lack of related processing measures which can utilize external temperature to regulate indoor temperature and air flow direction in real time. The all season self-regulating air closed loop enclosure wall in the application comprises an outer light condensing cover body and a main wall body, the outer light condensing cover body is arranged outside the main wall body, a front receiving cavity is formed between the inner wall of the outer light condensing cover body and the outer wall of the main wall body, a light absorbing layer and a reflective coating are vertically arranged on the outer wall of the main wall body from top to bottom, the light absorbing layer and the reflective coating are both arranged towards the outer light condensing cover body, at least one upper air flow communication hole is processed on the top of the main wall body and communicates with the front receiving cavity, and at least one lower air flow communication hole is processed on the bottom of the main wall body and communicates with the front receiving cavity.