429results about How to "Improve compactness" patented technology

The invention relates to an automatic edible fungi bag filler, which is characterized by comprising a stander which is provided with an upper crown plate and a base, wherein a base guiding rod is arranged below the base, the base is also connected with a base air cylinder, and the base is connected with the base guiding rod through a slide block, a holing device and a storage hopper are arranged above the upper crown plate, and a blender is arranged in the bottom part of the storage hopper; a movable barrel device is arranged below the storage hopper, and the base is provided with at least one set of bag taking and filling device; and the bag taking and filling device consists of a bag taking device, a bag filling device and a bag pushing device. Due to the adoption of the automatic edible fungi bag filler, the manual bagging industrial difficulty is thoroughly solved, the labor intensity is alleviated, operators can be released, and multiple machines can be operated by one person; the labor efficiency can be improved; and the maneuverability is strong, and the automatic edible fungi bag filler is simple to operate and is easy to control.

The invention relates to a coating method for iron-based magnetically soft alloy powder and a preparation method of soft magnet composite material. The coating method for iron-based magnetically soft alloy powder comprises the following steps: carrying out accelerated oxidation on iron-based magnetic metal powder at high temperature, forming an oxide layer on the surface of the powder and then carrying out acid pickling, thus obtaining powder with surface coated with SiO2, Al2O3 and Cr2O3 oxides. The preparation method of the soft magnet composite material comprises the following steps: adding coupling agent, silicon resin and lubricating agent to the coated powder, carrying out pressing forming, and then carrying out annealing heat treatment, thus obtaining the soft magnet composite material. According to the invention, the advantage that an oxide produced in reaction of elements including Si, Al and Cr contained in the iron-based magnetically soft alloy powder with oxygen is high in electrical resistivity, small in thermal expansion coefficient and steady in chemical performance and can resist high temperature is fully utilized; the adopted coating technology is to produce a coating layer in situ on the surface of the alloy magnetic powder, and is simple in process, easy to operate and low in cost; the metal soft magnet composite material prepared by adopting the method disclosed by the invention has good magnetic property and frequency stability.

The invention relates to a sintered composite soft magnetic material and a method for preparing the same. The material comprises a metal soft magnetic material, a soft magnetic ferrite and a low-melting-point soft magnetic alloy, wherein the metal soft magnetic material is formed by at least one of an Fe-Ni system, an Fe-Co system, an Fe-Co-V system, an Fe-Al system and an Fe-Al-Me system (Me is one or more than two of Co, Cr and Mo), the soft magnetic ferrite is formed by at least one of an Mn-Zn system, an Ni-Zn-based, an Li-Zn system and a Cu-Zn system, and the low-melting-point soft magnetic alloy is an Re-Fe-M system alloy (Re comprises one or more of 17 rare earth elements including Sc and Y, and M is one or more of metal elements including B, Al, Si, Ti, V, Cr, Mn, Co, Cu, Mo, Ni, Zn, Ga, Nb, Ta and W). The method for preparing the soft magnetic material formed by the components has the advantages that cold pressing and then sintering or hot pressing or spark plasma sintering are selected, and the soft magnetic material not only overcomes the low resistivity of the metal soft magnetic material and the low magnetic induction of the ferrite, but also maintains the excellent performance of the metal soft magnetic material and the soft magnetic ferrite.

The invention discloses a hot wall heat exchanger. The hot wall of the hot wall heat exchanger includes an inner support device and a heat exchange partition wall covering the inner support device. section and the upper and lower ends for the left and right circulation of the phase change fluid; the hot wall is rectangular, and several hot walls of the same size are juxtaposed into clusters, or the hot wall is ring-shaped, and several hot walls of different sizes are nested in clusters ; Each adjacent hot wall is provided with channel strips or fins to facilitate the passage of fluid; the fluid side of all channel strips or fins outside the hot wall is divided into multiple regions, which is realized by the phase change fluid in the hot wall Heat exchange of heat exchange fluids. The compactness of the hot wall heat exchanger proposed by the present invention is higher than that of the current heat pipe, and it can be adapted to more heat exchange fields. The variable fluid circulation speed is accelerated, and the heat exchange efficiency is improved.

The invention relates to an environment-friendly wood-plastic material which is prepared from the following raw materials in parts by weight: 30-40 parts of wood meal, 25-35 parts of straw powder, 25-35 parts of plant vine powder, 10-15 parts of paper powder, 10-15 parts of waste plastic particle, 19-25 parts of polypropylene, 19-25 parts of polyvinyl chloride, 12-18 parts of reinforcer, 8-13 parts of filler and 8-13 parts of adhesive. The wood-plastic material is simple to manufacture, fully utilizes the diversified raw materials, saves the wood, is economical and environment-friendly, and has the advantages of high compactness, no water seepage, chemical corrosion resistance, light weight and high strength. The raw materials can not be carbonized in the working process, thereby sufficiently ensuring the service performance of the material. The wood-plastic material has certain antistatic and flame-retardant properties, and can satisfy the demands for most occasions.

The invention relates to a method for preparing a multi-layer hydrogen-permeation-resisting composite membrane, and belongs to the material technology field. The method adopts a coupling technique of aluminum and aluminum alloy coating and micro-arc oxidation to form the multi-layer hydrogen-permeation-resistance composite membrane at the home position on a stainless steel basal body, the composite membrane comprises an alloy layer formed by the basal body and coating metal, a coating metal layer, a composite layer formed by the coating metal and oxide ceramic and an oxide ceramic layer, etc., as shown in picture 1. Compared with the prior art, the method has the advantages of the aluminum and aluminum alloy coating and the micro-arc oxidation, overcomes the defect of the prior single technique, and forms the multi-layer hydrogen-permeation-resistance composite membrane with high capability; the ceramic layer thereof has controllable thickness, high compactness, good quality, and firm combination with the basal body, thereby enhancing the hydrogen-permeation-resisting and the corrosion-resisting properties of the stainless steel, improving the hot oxidation resistance and the abrasion resistance of the stainless steel, prolonging service life of the stainless steel container, and strengthening safety precautions.

A cooling system for an onboard electrical power converter in which a heat dissipation surface extends parallel to a flow of cooling air draft includes: a coolant tank containing coolant that includes a bottom surface being in thermal contact with the heat dissipation surface; a first conduit provided connecting to an upper surface of the coolant tank, the coolant flowing into the first conduit; a heat exchanger that comprises second conduits arranged with opposing the upper surface, and conducts the coolant to upstream; and a return unit that returns the coolant to the coolant tank; wherein the heat exchanger comprises heat dissipation fins through which the cooling air draft passes from a first to a second side, the heat dissipation fins being provided on surfaces of the second conduits, the first side not facing the coolant tank and the second side facing the coolant tank.

The invention provides a forming process of anode foils for extra-high voltage aluminium electrolytic capacitors, comprising the following steps: placing aluminium foils which undergo electrolytic corrosion in pure water at 90 DEG C or above to carry out pretreatment; then carrying out first-stage formation on the pretreated aluminium foils in aqueous solution containing 1-9wt% of boric acid and 0.01-0.6wt% of ammonium adipate; then treating the foils which undergo first-stage formation with phosphoric acid solution at the concentration of 1-10wt%; then treating the foils which undergo phosphoric acid treatment at high temperature; then carrying out second-stage formation on the foils which undergo high temperature treatment in the aqueous solution containing 2-10wt% of boric acid and 0.01-0.09wt% of ammonium pentaborate; then treating the foils which undergo second-stage formation in the phosphoric acid solution at the concentration of 1-10wt%; then treating the foils which undergo phosphoric acid treatment at high temperature; finally carrying out third-stage formation on the foils which undergo high temperature treatment in the mixed aqueous solution containing 2-10wt% of boric acid and 0.01-0.09wt% of ammonium pentaborate and carrying out post-treatment on the foils which undergo third-stage formation in the aqueous solution containing 1-13wt% of phosphoric acid and 0.1-6wt% of ammonia, and cleaning and then drying the foils which undergo post-treatment.

The invention discloses a distribution box type smart home terminal and comprehensive protection controller. The distribution box type smart home terminal and comprehensive protection controller comprises a general air switch with earth leakage protection, a power supply module, a voltage and current transformer, a comprehensive fault and power utilization monitoring module, a front panel, an automatic switch and a general control module, wherein the comprehensive fault and power utilization monitoring module comprises an electric quantity detection, electric leakage detection, short-circuit fault and arc fault rapid detection integrated module and is provided with a magnetic latching relay automatic switch so as to realize modularized and integrated power utilization monitoring and home distribution fault control protection. According to the distribution box type smart home terminal and comprehensive protection controller, a smart home control management terminal is used as a distribution box cover plate so as to realize organic integration of a home distribution box and a smart home control system; when home power utilization monitoring and other monitoring management are carried out, a home power utilization fault line and fault types thereof can be determined rapidly. The distribution box type smart home terminal and comprehensive protection controller realizes home smart control, protection and management and has the technical characteristics of compact type and comprehensive smartness.

The invention discloses a preparation method for a quasi-nanostructure WC-Co (tungsten-cobalt) coating with high compactness and low decarburization, and belongs to the technical field of preparation of WC-Co coatings. The preparation method comprises the steps as follows: firstly, preparing superfine and nanometer WC-Co compound powder with average particle size of 80-400 nm; secondly, mixing the WC-Co compound powder with Cr3C2 and VC powder according to a certain ratio, carrying out ball milling and drying to obtain mixed powder, granulating, and carrying out heat treatment; and thirdly, sieving for grading, combining into spraying powder with special particle size distribution, and spraying by adopting supersonic flame spraying equipment. The quasi-nanostructure WC-Co coating prepared by the method has the characteristics of high compactness and low decarburization.

The invention discloses hydroxyl-terminated aqueous core shell emulsion for anticorrosive paint, and a preparation method of the hydroxyl-terminated aqueous core shell emulsion. Hydroxyl-terminated aqueous anticorrosive acrylate emulsion adopts a core-shell structure, the shell layer is hydroxy phosphate ester type acrylic acid molecules, the core layer is polyurethane modified acrylic ester, and the shell layer adopts acrylic ester synthetized by using hydroxy phosphate as functional monomers. The solid content of the hydroxyl-terminated anticorrosive acrylate emulsion is 40 to 50%. The preparation method comprises the steps as follows: using polymer polyol and isocyanate as polymer monomers, synthetizing polyurethane molecular with double sealed terminals on the condition that vinyl acrylic monomers exist, and then polymerizing with acrylic monomers, such as styrene and methyl methacrylate as a core layer; using the acrylic monomer mixtures containing functional monomers (vinyl alcohol phosphate) as seed emulsion, and dropping the emulsion into the core layer at 70 to 85 DEG C. The method provided by the invention can be used for anticorrosive paint of metal surfaces, such as steel surfaces.

The invention provides a system and method for forming a disk part by performing two-stage atomizing and spraying. The method comprises the following steps of: performing first-stage atomizing: spraying high-speed inert gas out of an atomizing nozzle for atomizing molten metal to form an atomizing cone; performing second-stage atomizing: colliding metal molten drops in the atomizing cone with a throw-away disk in a flying process, and further refining the molten drops at a high relative speed under the colliding and centrifuging actions of the throw-away disk which rotates at a high speed and the molten drops; and after two-stage atomizing is completed, making the metal molten drops fly towards a receiving mold at a very high speed, performing quick condensation in the process, and depositing and forming on the receiving mold finally, wherein the annular mold rotates at a high speed, and the received semi-solid liquid drops occupy pores generated by depositing under the action of centrifugal force, so that the porosity of a depositing blank is lowered. The annular mold can move up and down along an axial direction during high-speed rotation, and the wall thickness and axial length of a formed piece can be controlled by adjusting axial feeding speed and total feeding amount.

The invention relates to the building field. The invention relates to a construction method for a concrete filled steel tubular column, comprising the following steps that: a tube is filled with water at first, and then a tremie is put down to the bottom of a pile; concrete is poured into the steel tube by a hopper through the tremie, and a vibrating tamper which is attached to the outerwall of the tube performs concrete vibrating when placing is performed simultaneously; primary concrete placing is performed until the height is 3 to 5 meters on the upper side of a nozzle of the tremie, and the tremie is lifted and guaranteed that the embedding depth of the tremie in concrete is not less than 2 meters; secondary concrete placing is performed, and the vibrating tamper which is attached to the outside of the tube on the bottom layer is started; lifting and placing are repeated, and the concrete is placed to the top of the column; and laitance is removed. The construction method solves the problem of the separation phenomenon caused by overhigh concrete placing height, increases the compactness of the concrete, reduces the number of air bubbles, has small shrinkage clearance between the concrete and the steel tube, can well give play to the function of stress, is convenient in construction, is mechanized, and is simple and convenient in operation. Moreover, the quality can be guaranteed; the equipment is saved by 30 percent; the stability is strong; and 50 percent of raw steel materials and 35 percent of the concrete are saved when the steel tube and the concrete are under same stress, thereby the production cost is effectively reduced.

A method of making a coupling for joining pipe segments is disclosed. The method includes providing a fitting with a socket for receiving a pipe end. A first region of the fitting adjacent to the socket is expanded to a larger diameter than the socket. A second region of the fitting adjacent to the first region is expanded to a larger diameter than the first region. A third region of the fitting adjacent to the second region is expanded to a larger diameter than the second region. A sealing member is positioned in the first region, a retainer is positioned in the second region and a support washer is positioned in the third region. A lip is turned inwardly on the third expanded region to capture the components within the coupling.

The invention relates to a heat exchanger comprising fluid exchange and flow elements (2, 2', 3), at least one fluid-collecting box (11, 11') into which the exchange elements (2, 2', 3) lead, at least one collecting plate (10) holding the exchange elements (2, 2', 3) and a casing (4) for housing the exchange elements (2, 2', 3). The exchanger is characterized in that it comprises a flange (5) for attaching the collecting box (11, 11') to the casing (4). Owing to the invention, stresses are prevented from being transmitted from the flange (5) to the collecting plate (10), thereby enabling a thinner collecting plate (10) to be produced.

A portable solar shower includes two detachable water reservoirs. One of the reservoirs may be coupled to a water source and includes a diverter valve regulating the flow and temperature of water spayed by a shower head, and the other reservoir has a port for coupling to the shower head. When the solar shower is not in use, the reservoirs may be separated from one another to form a compact package adapted for storage or transportation.

The invention relates to a method for preparing boron carbide silicon carbide composite ceramic and belongs to the technical field of ceramic materials. The boron carbide silicon carbide composite ceramic is prepared by mechanically alloying three-element mixed powder of boron carbide, carbon powder and silicon powder and sintering by a reaction hot-pressing technology, wherein the three-element mixed powder comprises 50 to 90 weight percent of boron carbide powder, 15 to 3 weight percent of carbon powder and 35 to 7 weight percent of silicon powder; and the molar ratio of the carbon powder to the silicon powder is 0.8 to 1.2. The high-compactness boron carbide silicon carbide composite ceramic can be obtained at low temperature without adding a liquid phase sintering aid. Silicon carbide which is obtained through in-situ synthesis in the sintering process of carbon and silicon has high purity and the crystal grains are small and dispersed uniformly, so the mechanical property of the ceramic is improved. The boron carbide silicon carbide composite ceramic prepared by the method has high compactness, high hardness and high high-temperautre mechanical property and can serve as an anti-impact and wear-resistant part of precise structure engineering.

The invention relates to a method for preparing ultralow cement artificial fishing reef concrete and belongs to the field of comprehensive utilization of solid waste. The method for preparing ultralow cement artificial finishing reef concrete is characterized by including grinding dried seawater wet discharge ash until the specific surface area is 500-700m<2>/kg, adding slag powder of the specific surface area of 350-410m<2>/kg, mixedly grinding clinker and desulfurized gypsum until the specific surface area is 450-550m<2>/kg and obtaining binding materials; smashing, autogenously grinding and screening the waste concrete to obtain regenerable crude aggregate and regenerable fine aggregate; according to doping quantity proportion per cubic meter of 300-350kg/m<3> of the binding materials, 800-1300kg/m<3> of the regenerable crude aggregate, 500-800kg/m<3> of the regenerable fine aggregate and 1-3.5kg/m<3> of efficient water reducer and water binder ratio of 0.35-0.5, preparing low-alkalinity concrete fishing reef. By the method for preparing ultralow cement artificial fishing reef concrete, solid concrete is utilized as main raw materials to prepare the ultralow cement artificial fishing reef concrete, preparation cost of the fishing reef is evidently reduced; and further, since the pH (potential of hydrogen) value of prepared fishing reef concrete solution is similar to that of sea water, the ecological environment of aquatic lives around the fishing reef is thoroughly improved.

The invention discloses a cement waterproof coating containing acrylic ester and a preparation method of the cement waterproof coating, and relates to the field of cement waterproof coatings. The cement waterproof coating containing acrylic ester is characterized in that the cementing compound is formed by mixing a component (A) and a component (B) based on the weight percentage, wherein the component (A) is 40-60 percent by weight of emulsion which uses polyacrylic ester as a main constituent; and the component (B) is 40-60 percent by weight of powder consisting of cement and kaoline. By the cement waterproof coating containing acrylic ester, the compatibility of the cement waterproof coating and the cement can be obviously improved, so that the compactness and the water-resistant permeability of a coating film are improved; and meanwhile, the cement waterproof coating is high in fracture extensibility and can be suitable for working conditions under long-term immersion environments.

The invention provides a preparation method of mint essential oil burst beads for cigarettes, belonging to the technical field of cigarette processing. The preparation method of burst beads comprisesthe following steps: performing high-speed homogenization and emulsification on mint essential oil, a calcium ion water solution and a surfactant to form an emulsion, directly and dropwisely adding emulsion drops into a sodium alginate water solution through an orifice by controlling the flow velocity of the emulsion at 1-5mL/minute by using a peristaltic pump, enabling the emulsion drops to stayin the sodium alginate solution for 2-40 minutes to obtain calcium alginate beads, taking out the beads, washing the beads with distilled water, putting the beads into an oxidizer water solution, performing soaking for 1-20 minutes, taking out the beads, washing the beads with distilled water, soaking the beads in a water-soluble polymer solution for 5-30 minutes, taking out the beads, washing thebeads with distilled water, and performing natural air drying, thereby preparing the mint essential oil burst beads for cigarettes, of which the grain size is 1-20mm. The mint essential oil burst beads for cigarettes are applied to cigarette filters to achieve the goal of improving the quality of cigarettes.

The present invention relates to an additive for electroplating zinc-nickel alloy and electroplating brass by using alkaline solution and its preparation method. The composition of the additive includes (wt%) 32-36.5% of primary brightening agent, 62.5-67% of secondary brightening agent and 0.5-1% of surfactant. Its preparation method includes the following steps: mixing triethanolamine, vanillinand ethanolamine according to a certain ratio, uniformly stirring them to obtain mixed solution; then using small quantity of absolute ethanol to dissolve coumarin and thiourea, adding small quantityof distilled water, and adding p-toluenesulfonamide, sodium benzene sulfinate and sodium lauryl sulfate or sodium lauryl sulfonate to obtain mixed solution, then mixing the above-mentioned two mixed solutions.

The invention discloses a polymer-nanometer metal oxide composite ink. The polymer-nanometer metal oxide composite ink comprises at least one polymer with a fatty amine unit, at least one nano-metal oxide particle and at least one organic alcohol solvent used as a solvent, wherein the polymer is preferably selected from linear or branched polyethylene imine, end position ethoxylated or ethylaminated polyethylene imine, or a polyethylene imine fragment-containing copolymer. The invention also discloses a preparation method of the composite ink. A composite film is produced through spin-coating or printing the composite ink, and can be applied in solar batteries, light emitting diodes and other optoelectronic devices as an electrode modification layer to improve contact performances between the electrode and an organic active layer in order to improve the performances of the optoelectronic devices.

The invention discloses a green rapid-hardening early-strength magnesium phosphate-based healant and a preparation method thereof. The green rapid-hardening early-strength magnesium phosphate-based healant is composed of a material A and a material B; the material A is prepared via mixing of a phosphate, borax, a toughening ingredient, an accelerating component, a water retention ingredient, a water reducing ingredient, and a grinding aid dispersing agent; and the B material is prepared via mixing of magnesium oxide, flyash, silica fume, ground steel slag, chromium iron tailing slag powder, anhydrite, an expanding agent, and a grinding aid dispersing agent. According to the preparation method, industrial supplementary cementious materials (flyash, silica fume, and ground steel slag) are added into cement, so that cement fluidity and early strength are improved; industrial chromium iron tailing slag powder is added into the green rapid-hardening early-strength magnesium phosphate-based healant as a filling material, so that it is beneficial for cement hydration reaction, set cement compaction rate is increased, and at the same time heavy metal waste solidification is realized. The green rapid-hardening early-strength magnesium phosphate-based healant is capable of achieving balance between magnesium phosphate cement setting time and high early strength, and solving problems that shrinking percentage is large and bonding strength is low.

The invention discloses self-restoration concrete with enhanced restoration property and a preparation method thereof, and relates to the technical field of building materials. The self-restoration concrete is prepared from the following raw materials in parts by weight: 176 to 190 parts of cement, 44 to 49 parts of fly ash, 322 to 349 parts of fine aggregate, 409 to 444 parts of coarse aggregate,47.3 to 49.5 parts of water, 0.585 to 1.17 parts of fiber, 3.325 to 3.48 parts of water reduction agent, 22.5 to 27 parts of expander, 4.8 to 9.6 parts of restoration material, and 9.3 to 13.95 partsof water storage material. The self-restoration concrete has the advantages that the crack restoration ability of the self-restoration concrete is enhanced, the crack and slight damage with width ofabout 0.3 mm due to various causes can be continuously restored by self, the anti-cracking property of the self-restoration concrete is enhanced, the growth and development of the cracks are inhibited, the application range of the self-restoration concrete is expanded, and the economy of the concrete is improved.

A fiber packing preparation method is characterized by comprising the following steps: firstly, on a knitting machine, primary impregnation for fiber threads is preformed through first impregnant on weaving edges, so that the weight of the fiber threads gains 30% to 40%; secondly, the fiber threads after impregnation are taken out, and dried for 4 to 6 hours at the temperature of 90 to 110 DEG C; thirdly, the secondary impregnation is performed through adopting second impregnant for 10 to 20 minutes, and the second impregnant includes paraffin oil; and finally, the forming is carried. Compared with the prior art, the fiber packing preparation method provided by the invention has the advantages as follows: the impregnant is divided into two parts for the twice independent impregnation from start to finish, so that the impregnation is completer, and the improvement on the inner compactness of the packing is facilitated; meanwhile, the paraffin oil is separated out from the lower part at the ordinary temperature, and can be unceasingly separated out for lubrication when the temperature rise reaches to a certain extent during the practical application of the packing, so that the separated out paraffin oil is increased unceasingly to improve the lubrication under the condition that plenty of friction heat is generated, and the service life of the packing is greatly prolonged.

The invention provides a composite sulphoaluminate cement-based self-leveling material which comprises the following components by weight percent: 20-50% of dihydrate gypsum, 10-32% of active admixture, 20-50% of early strength agent, 2-10% of alkaline exciting agent, 0.6-1.2% of coagulant, 0.5-1.0% of water reducing agent, 0.02-0.1% of water-retaining agent and 0-0.1% of defoamer. The composite sulphoaluminate cement-based self-leveling material has the advantages of high early strength, good water tolerance, adjustable coagulation time, low energy consumption and low production cost, can beused as a leveling construction material for various grounds and is convenient for construction.

The invention relates to an integrated electric driving system assembly. The integrated electric driving system assembly at least comprises a driving motor, a transmission, a motor controller, an aircompressor and a water pump which are integrated; a stator shell of the driving motor is connected with an electric control shell, the motor controller is fixed into the electric control shell, and awiring box is formed between a rear end cover of the driving motor and a stator of the driving motor, communicated with the electric control shell and internally provided with a rotary transform signal insertion piece, a temperature signal insertion piece and a three-phase terminal led out of the motor stator of the driving motor; a three-phase high-voltage power output end of the motor controlleris connected with the three-phase terminal through a three-phase copper bar, and a control end of the motor controller is connected with the rotary transform signal insertion piece and the temperature signal insertion piece through a signal line. The integrated electric driving system assembly is compact in structure, the mounting space is saved, the mounting efficiency is improved, the complicated wiring harness connections are omitted, and the overall reliability is improved. The invention further relates to an electric vehicle.

The invention discloses an anticorrosive coating material for reinforcing steel bars. The anticorrosive coating material contains the following ingredients in parts by weight: 31-43 parts of glass powder, 1.3-4.1 parts of clay, 23-35 parts of borax, 2.7-7.4 parts of opacifier, 1.3-3.5 parts of adhesion agent and 0.2-2.4 parts of electrolyte, wherein the glass powder is sieved with a sieve with the pore size of 300-500 meshes. A coating method for the anticorrosive coating material for the reinforcing steel bars is further disclosed and comprises the following steps: (1) carrying out dry mixing; (2) carrying out wet mixing; (3) carrying out pretreatment; (4) carrying out coating; (5) carrying out baking; (6) carrying out sintering; and (7) carrying out normal-temperature cooling. The anticorrosive coating material is high in strength, good in compactness and good in corrosion resistance and has a strong bonding force with concrete, and meanwhile, the mechanical properties of the reinforcing steel bars are maintained.

An integrated radiation substrate and making method thereof, which contains a metal substrate, a metal oxide insulator for heat conduction formed on metal substrate, wires formed on metal oxide insulator surface. The making method contains A, providing a metal substrate, B, forming metal oxide insulation layer on metal substrate by anode micro-arc technology, C, coating metal membrane by vacuum physics vapor deposition, said invention can obtain higher compactness, better adhesion and radiation effect.

The invention discloses a method for preparing heaters by chemical vapor infiltration and resin impregnation, carbonization and densification, comprising the following steps: adopting carbon cloth andshort carbon fiber mesh tires to be laminated alternately to form plane fibers and introducing reinforcing fibres in the vertical direction to prepare three-dimensional heater preforms, carrying outthe followings on the three-dimensional heater preforms in sequence: chemical vapor infiltration and densification processes, resin pressure impregnation, carbonization and densification treatment, high-temperature treatment in high vacuum and mechanical processing, carrying out chemical vapor deposition coating treatment on the surfaces of the heater preforms undergoing mechanical processing, thus obtaining carbon/carbon heaters with high resistivity and higher purity. The method of the invention ensures good densification effect, can evidently prolong the service lives of the carbon/carbon heaters, can improve the product purity under the premise of not reducing the resistance of the carbon/carbon heaters, can greatly improve the heat shock resistance and structural stability of the products and can effectively enhance the erosion resistibility and corrosion resistance under the atmospheres of SiCl4 and HCl of the heaters.