73results about How to "Reduce brittleness" patented technology

The invention belongs to the technical field of keel bending, and particularly relates to an automatic bending device for a light steel joist, which comprises a conveyor, a bending assembly is arranged above the conveyor, and the device is provided with the bending assembly, so that the light steel joist can be attached to the surface of the bending assembly to be subjected to pre-deformation bending treatment; the light steel joist is subjected to small-angle deformation before formal bending treatment, so that the resilience after edge folding can be reduced, the residual stress in the light steel joist can be released, the possibility of quality problems such as deformation and cracking caused by stress concentration is reduced, the structural strength and durability of the light steel joist are enhanced, and the service life of the light steel joist is prolonged. The stability and reliability of the whole structure are guaranteed, the internal stress distribution is more uniform and reasonable, so that the machining precision and the product quality are improved, the bending consistency of the light steel keel is guaranteed, manual intervention is not needed, the automation degree of the bending process is greatly improved, the labor intensity is relieved, and the production efficiency is improved.

The invention discloses a method for preparing a FeMnSi alloy with a remarkable low-temperature shape memory effect through 3D printing, and the method comprises the following steps: 1, carrying out room-temperature rotary mixing on powder containing FeMnCrNiSi element components to obtain mixed powder; and secondly, the mixed powder serves as a raw material, and a metal powder bed selective laser melting 3D printing technology is adopted for preparing the block FeMnSi series alloy. By developing FeMnSi system alloy components with the characteristics of high Cr content, high Ni content and middle Si content, the stacking fault energy is effectively reduced, the defects of stacking fault, dislocation and the like in the FeMnSi system alloy are greatly improved, martensite phase transformation in the deformation process is promoted, and therefore good 3D printing process adaptability is achieved, the cracking risk is reduced, and the service life of the product is prolonged. And the material has obvious shape memory effect and tensile strength at low temperature, and is suitable for reusable impact-resistant, load-bearing and functional devices in polar space environment.

The invention relates to the technical field of metal surface treatment, in particular to a method for achieving titanium metal surface rapid boronizing through electric field induction nanometer assembly in molten salt, titanium dioxide powder, boron powder, inorganic salt and a nanometer particle wrapping agent are evenly mixed, and the molten salt containing nanometer TiB2 is obtained after heating reaction. Graphite and a titanium metal part are put into molten salt containing nano TiB2, the graphite serves as a positive electrode, the titanium metal part serves as a negative electrode, the surface area ratio of the positive electrode to the negative electrode is (3-10): 1, the nano TiB2 in the molten salt is assembled on the surface of the titanium metal part under the action of an electric field to form a boronizing layer, and the boronizing speed is 60-500 microns / h. Compared with an existing high-temperature boronizing technology with active boron atoms as a constituent unit, the high-temperature boronizing technology has the advantages that the boronizing speed can be remarkably increased, the high-temperature boronizing treatment time of titanium metal is shortened, energy is saved, cost is reduced, and meanwhile the negative influence of the high-temperature environment on the organization structure and the mechanical property of a titanium metal part is eliminated.

The attapulgite (HNTs) is modified by using the diethyl aluminum hypophosphite (ADP), so that the flame retardant property of the HNTs and the compatibility of the HNTs and a polypropylene matrix can be remarkably improved. Through thermal modification, the treated surfaces of the HNTs can effectively adsorb phosphorus elements, and ADP can form phosphate groups on the surfaces of the HNTs to enhance the flame inhibition effect of the HNTs. Due to the adsorption effect, the modified HNTs can form a carbonized layer more quickly at high temperature, flame spreading is prevented, and the flammability of the material in a fire disaster is reduced. The dispersity and compatibility of the modified HNTs in a polypropylene matrix are remarkably improved, the mechanical property and thermal stability of the composite material are enhanced, and the modification cost is effectively reduced by optimizing the modification method. Compared with a traditional high-content inorganic flame retardant, the ADP modified HNTs has the advantages that the flame retardant property is improved, and meanwhile, the requirement for using other expensive flame retardants is reduced, so that the cost of the composite material is effectively reduced.

The invention discloses a polylactic acid composite material with balanced rigidity and toughness and a preparation method thereof, relates to the technical field of polymer composite materials, and solves the problem that the rigidity and toughness of a polylactic acid composite material in the prior art cannot maintain balance. The preparation method comprises the following steps: drying polylactic acid (PLA), a glycidyl methacrylate grafted polyether amide copolymer (Pebax-GMA) and silicon dioxide (SiO2) in a drying oven, weighing the dried PLA, Pebax-GMA and SiO2 in proportion, and carrying out melt blending in an internal mixer to obtain the polylactic acid composite material. According to the invention, PLA is taken as a polymer matrix, SiO2 is taken as a core, Pebax-GMA is taken as a shell, and the shell is wrapped outside the core to form a core-shell structure, so that rigid-tough balance and biodegradable material design of the PLA composite material are realized.

The invention relates to the technical field of insect situation forecasting lamps, in particular to a manufacturing method for improving the strength of a permanent magnetic ferrite wet-pressing magnetic shoe. Comprising the following production steps: 1, weighing iron oxide red with proper granularity, strontium carbonate with proper granularity and an additive, uniformly mixing, and pre-sintering to obtain pre-sintered material magnetic powder; 2, putting the pre-sintered material magnetic powder and a sintering aid into a ball mill, and performing micro-crushing by taking water as a medium; 3, the water content of the micro-crushed slurry is adjusted, the slurry is placed in a magnetic field to be formed, and a magnetic shoe pressed blank is obtained; and 4, sintering the magnetic tile pressed blank in a kiln to obtain a sintered magnetic tile semi-finished product. And 5, grinding the sintered magnetic shoe semi-finished product. According to the method, iron oxide red with the particle size larger than or equal to 1.5 micrometers is adopted for producing the ferrite pre-sintering material, meanwhile, the fine grinding particle size of slurry before wet pressing forming is controlled to be larger than 0.8 micrometer, and then the mechanical strength of the wet pressing magnetic shoe obtained through forming and sintering is obviously improved.

The invention discloses a light and high-performance copper nano carbon aluminum composite wire and a preparation method thereof, the composite wire is of a copper, nano carbon and aluminum concentric bimetal and nano carbon composite structure, the outer layer is oxygen-free copper, the middle interlayer is nano carbon, the core part is aluminum, and the copper accounts for 45%-95% of the volume fraction of the composite wire. Firstly, an oxygen-free copper pipe and an aluminum bar are cleaned and polished; secondly, a nanometer carbon layer is introduced between the copper layer and the aluminum layer through a proper method, then the aluminum bar is put into a pipe, and after plugs are added, the two ends are welded and sealed; and finally, the light and high-performance copper nano carbon-aluminum composite wire is obtained through the processes of drawing, heat treatment and the like. The copper nano carbon-aluminum composite wire has the characteristics of light weight, high strength and high conductivity, and has a certain elastic characteristic while keeping better conductivity. The light and high-performance copper nano carbon aluminum composite wire has a wide application prospect in the fields of aerospace, power electronics, life appliances and the like.

The present invention discloses a low-brittle glass substrate and a preparation process thereof, belonging to the field of glass substrate preparation. The raw material components of the glass substrate include base silicon dioxide, surface amino-treated silicon dioxide, aluminum oxide, boron oxide, modified titanium dioxide, sodium oxide, magnesium oxide, and cerium oxide. The glass substrate of the present invention has low brittleness, and the ratio of Vickers hardness to fracture toughness is used as a brittleness index, the Vickers hardness is 6.65-6.70GPa, and the fracture toughness is 3.54-3.77MPa / m 1 / 2 , the brittleness index is 1.78-1.87.

The invention discloses a microalloyed high-toughness martensitic stainless steel cutter head as well as a preparation method and a preparation mold thereof. Stainless steel comprises the following components in percentage by weight: 0.3%-0.7% of C, 0.3%-1.0% of Si, 0.5%-1.5% of Mn, 16%-18.5% of Cr, 1%-2% of Ni, 0.3%-0.8% of Mo, 0.1%-0.35% of V, 0.1%-0.25% of Nb, less than or equal to 0.02% of S, less than or equal to 0.02% of P and the balance of Fe. Firstly, raw materials are smelted into molten iron; then adding a deoxidizing agent and precoated sand into the molten iron for molding, and performing sand mold casting and pouring to obtain a cutterhead blank; carrying out heat treatment on the cutter head blank; and finally, shot blasting and polishing are conducted on the cutterhead subjected to heat treatment. The martensitic stainless steel cutterhead has a metallographic structure which takes a martensitic structure as a main structure, takes austenite as an auxiliary structure and dispersedly distributes CrC, VC and NbC particles, the hardness of the martensitic stainless steel cutterhead is 40-45 HRC, the impact toughness of the martensitic stainless steel cutterhead reaches 92-95 J / cm < 2 >, the abrasion resistance of the cutterhead is longer, the service life of the cutterhead is longer, and the abrasion loss of the martensitic stainless steel cutterhead is reduced by 70% compared with a cutterhead without alloy elements.

The invention provides a preparation method of a flexible protective layer for lithium metal negative electrode protection, and belongs to the technical field of lithium metal batteries, and the preparation method specifically comprises the following steps: taking a polyarylether high-molecular polymer with a functional group as a main body, introducing metal salt, and spinning to obtain a nanofiber membrane with uniformly distributed central metal ions; a UiO-66 series framework material is grown on the surface of the fiber in situ, so that a flexible protective layer with the UiO-66 series framework material uniformly distributed and stable is obtained. The excellent rigidity of a polyarylether high-molecular polymer is utilized, the flexibility of a protective layer is improved, functional groups are introduced, and strong chemical bonds or electrostatic interaction between the functional groups and central metal ions is utilized, so that the adhesive force in the nucleation and growth process of the UiO-66 series framework material is enhanced, and the performance of the UiO-66 series framework material is improved. When the material is used for lithium metal negative electrode protection, the stability of a solid electrolyte interface can be effectively improved, the cycle life of a lithium battery is prolonged, and the performance consistency of the lithium battery is improved.

The invention discloses a polymer modified epoxy resin flexibilizer as well as a preparation method and application thereof, and belongs to the technical field of flexibilizers. The toughening agent is prepared from the following components in parts by weight: 80-150 parts of a modified polyurethane aqueous solution, 10-25 parts of a polystyrene / polyamide mixture, 50-80 parts of amino-terminated liquid nitrile rubber, 15-25 parts of an emulsifier, 5-10 parts of a nano silicon dioxide / nano zirconium dioxide mixture, 10-20 parts of phenolphthalein polyaryletherketone, 20-30 parts of a formic acid / acetic acid mixed solution and 20-40 parts of water. According to the toughening agent, the impact toughness and tensile strength of a toughened epoxy resin system are improved, the crosslinking density and brittleness of epoxy resin are reduced, the impact resistance of the resin can be improved, and the epoxy resin system with high strength, high toughness and high heat resistance is obtained.

The invention relates to the field of thermal insulation materials, in particular to a thermal insulation microfiber centrifugal glass wool thermal insulation material and a preparation method thereof, which solves the problem that after acrylic ester in the centrifugal glass wool is bonded to glass fibers, the gaps between the glass fibers are blocked, the irregular gaps are less, and the thermal insulation and sound insulation performance of the centrifugal glass wool is reduced; the invention specifically comprises modified fiber cotton and a porous adhesive, wherein a porogen is used in the adhesive to form interconnected micropores along a porous skeleton at 230-280°C; the application prepares a special adhesive by adding a porogen, which not only ensures the bonding strength between the glass fibers, but also forms microporous channels, thereby enhancing the thermal insulation and heat preservation performance of the glass wool, and does not generate debris to cause harm to the human body.

The invention provides high-light-transmittance polymethyl methacrylate resin and a preparation method thereof, and belongs to the technical field of high polymer materials. Comprising the following steps: carrying out catalytic cracking on waste polymethyl methacrylate resin, collecting a high-purity methyl methacrylate regenerated monomer I, uniformly mixing the high-purity methyl methacrylate regenerated monomer I with a methyl methacrylate monomer II, a comonomer III, a modifier, an initiator and a chain transfer agent serving as raw materials, and sequentially carrying out primary polymerization, secondary polymerization and tertiary polymerization, so as to obtain the polymethyl methacrylate copolymer. And then inputting the materials into a devolatilization extruder for devolatilization, extrusion molding and granulation to prepare the high-light-transmittance methyl methacrylate resin. The prepared light-transmittance polymethyl methacrylate resin is high in light transmittance, good in toughness and excellent in mechanical property, the application of the light-transmittance polymethyl methacrylate resin is greatly widened, and the light-transmittance polymethyl methacrylate resin has a wide application prospect.

This invention discloses a high-performance vitrified microsphere composite polystyrene particle insulation board and its preparation method, comprising the following steps: premixing hydrophobic vitrified microspheres and expandable polystyrene particles coated with expanded graphite at a mass ratio of (2.5~4):1 to obtain composite lightweight aggregate. The insulation board prepared by this invention, with a dry density of only 184-193 kg / m³, exhibits a compressive strength as high as 0.275-0.302 MPa, significantly superior to traditional inorganic insulation boards (0.15-0.25 MPa) and organic insulation boards (0.10-0.15 MPa); its thermal conductivity is as low as 0.034-0.041 W / (m·K), and its insulation efficiency is more than 40% higher than that of traditional inorganic materials, while also possessing Class A fire safety performance; furthermore, the process is simple and controllable, with an industrial solid waste utilization rate of up to 70%, demonstrating significant economic benefits and environmental value, and possessing broad prospects for widespread application.

The utility model relates to a winding and winding machine, in particular to a small abrasive belt rapid winding and winding machine which comprises a rear machine body, a humidifying system is arranged in the rear machine body, a water storage tank of the humidifying system is fixedly arranged in an inner cavity of the rear machine body, a water inlet is fixedly formed in the center of the top of the water storage tank, and the water inlet penetrates through the inside and the outside of the water storage tank. A top cover is arranged at the top end of the water inlet and is in threaded connection with the water inlet, a water outlet pipe penetrating through the inside and the outside of the water storage tank is fixedly arranged in the center of the bottom of the water storage tank, the bottom of the water outlet pipe is fixedly connected with a vertical water pipe, and the vertical water pipe is fixedly connected with a horizontal water pipe. According to the small abrasive belt rapid winding and winding machine, the humidifying system is arranged, the humidifying system controls the water spraying strength through the rotary knob, so that the humidity of the inner cavity is controlled, the abrasive belt is located in an ideal humidity environment, the fragility of the abrasive belt is reduced, and the quality of the abrasive belt is improved.

The present invention provides a special optoelectronic composite cable for use in extremely cold weather, belonging to the technical field of optoelectronic composite cable preparation; it comprises a cable core, a water-blocking layer, a cold-resistant reinforcement layer, and a cold-resistant sheath layer. The present invention effectively prevents moisture intrusion through the water-blocking layer, the cold-resistant reinforcement layer provides additional mechanical strength, and the cold-resistant sheath layer fully protects the internal structure of the optoelectronic composite cable. This multi-level and multi-functional structural design enables the optoelectronic composite cable in extremely cold weather to better meet the complex use requirements in extremely cold environments, and provides a reliable solution for communications and energy transmission in cold areas.

The utility model discloses a tuyere small sleeve with a ceramic sheath, which comprises a flange, an inner sleeve, an outer sleeve, a fluid director and the ceramic sheath, an inner cavity is enclosed by the outer sleeve, the inner sleeve and the flange, and the fluid director is arranged in the inner cavity; the ceramic sheath comprises an outer conical surface protective cover and / or a front end surface protective cover, and is characterized in that the outer conical surface protective cover comprises a plurality of outer conical surface ceramic protective sheets, and each outer conical surface ceramic protective sheet is arranged on the outer conical surface of the front part of the tuyere small sleeve and is fixedly connected with the outer conical surface of the front part of the tuyere small sleeve; the front end face protective cover comprises a plurality of end face ceramic protective pieces, and all the end face ceramic protective pieces are arranged on the front end face of the tuyere small sleeve and fixedly connected with the front end face of the tuyere small sleeve. The tuyere small sleeve with the ceramic sheath not only has better shock resistance, but also can save materials and production cost.

This invention relates to a nutritional composition for promoting bone development and its applications. The invention provides applications of the nutritional composition or preparations comprising said nutritional composition, including: (1) preparing food products; (2) preparing health products for promoting bone development, increasing height, and / or improving bone density; (3) preparing drugs or drug compositions for promoting bone development, increasing height, increasing bone density, treating or preventing osteoporosis, and / or treating or preventing skeletal dysplasia; and (4) promoting bone development, increasing height, and / or improving bone density for non-therapeutic purposes; wherein said nutritional composition comprises medium- and long-chain triglycerides (MLCT) and 1,3-diunsaturated fatty acid-2-palmitoyltriglycerides (UPU).

The invention discloses a novel benzyl acrylate neutron / gamma discrimination plastic scintillator and a preparation method and application thereof. The plastic scintillator is composed of a polymer matrix, a main fluorescent dye and a secondary fluorescent dye, the polymer matrix is benzyl acrylate (BA), the main fluorescent dye is 2, 5-diphenyl oxazole (PPO), and the secondary fluorescent dye is 7-diethylamino-4-methylcoumarin (MDAC) or 9, 10-diphenyl anthracene (DPA). The prepared plastic scintillator uses a new organic polymer matrix, and compared with a plastic scintillator of the same type, the preparation cost is lower, the forming time is shorter, and the plastic scintillator has good stability, optical transparency and mechanical strength and has neutron-gamma discrimination capability.

The invention discloses a heat treatment process for strengthening and toughening a TC18 titanium alloy. The process comprises the following steps: step 1, heating the TC18 titanium alloy to 450-550 DEG C for preheating; secondly, the preheated TC18 titanium alloy is heated to 980 DEG C to 1020 DEG C for solution treatment; thirdly, the TC18 titanium alloy subjected to solution treatment is subjected to water quenching; and fourthly, the TC18 titanium alloy subjected to water quenching is subjected to tempering treatment, and the toughened TC18 titanium alloy is obtained. According to the process, the beta phase of the TC18 titanium alloy is subjected to water quenching after being subjected to solid solution treatment, so that the beta phase is converted into a martensite structure, the strength and toughness of the TC18 titanium alloy are improved, then the residual stress of the TC18 titanium alloy is reduced through tempering treatment, the toughness of the TC18 titanium alloy is further improved, and the process is suitable for the technical field of titanium alloy heat treatment and machining and manufacturing.

The invention belongs to the technical field of adhesives, and particularly relates to an adhesive material, a preparation method thereof and application of the adhesive material in silica gel glass. The preparation method of the binding material comprises the following steps: (1) reacting a diamino siloxane monomer, an amido-containing diamine monomer, other diamine monomers and a dianhydride monomer by adopting a step-by-step polymerization process to prepare polyamide acid; (2) carrying out chemical imidization reaction on the polyamide acid, and precipitating to obtain polyimide powder; and (3) mixing the polyimide powder, epoxy resin and a curing agent to obtain the binding material. According to the invention, diamine monomers such as a diamino siloxane monomer and an amido-containing diamine monomer are adopted as raw materials, polyimide is prepared through a step-by-step polymerization process, and introduction of a siloxane chain segment and an amido bond not only improves the solubility of polyimide, but also improves the compatibility and interface energy of polyimide and epoxy resin; and the bonding strength of the bonding material is improved.

The invention relates to the technical field of battery shell materials, and particularly discloses a high-temperature-resistant fireproof epoxy material for a composite battery shell material. The flame-retardant epoxy resin paint is prepared from the following raw materials: 20-30% of epoxy resin, 5-15% of a diluent, 35-45% of a flame retardant, 10-15% of polyamine, 1-5% of color paste and 1-2% of a release agent. The high-temperature-resistant flame-retardant glass fiber reinforced plastic is good in impact resistance and high temperature resistance, has good mechanical performance and manufacturability, is low in curing shrinkage rate, meets UL 94V0 fireproof combustion performance and is high in glass transition temperature.

The invention relates to the technical field of fabrics, in particular to an aerogel chemical fiber cotton fabric production process which comprises the following steps: (1) washing and drying a chemical fiber cotton fabric, and then performing normal-pressure dielectric barrier discharge plasma modification treatment to obtain a modified chemical fiber cotton fabric; (2) adding water into the nano silicon dioxide aerogel powder, stirring and performing ultrasonic treatment while adding water to obtain a nano silicon dioxide aerogel aqueous solution, and continuously adding waterborne polyurethane glue and a coupling agent while stirring and performing ultrasonic treatment to obtain nano silicon dioxide aerogel finishing glue; (3) immersing the modified chemical fiber cotton fabric into the nano silicon dioxide aerogel finishing glue, and rolling and drying to obtain the aerogel chemical fiber cotton fabric. A layer of aerogel covering body is formed on the fiber surface of the chemical fiber cotton fabric, so that the chemical fiber cotton fabric with multiple effects of heat preservation, flame retardance and hydrophobicity is obtained.

The invention discloses an aluminum alloy surface high-hardness high-binding-force low-brittleness ceramic coating and a preparation method, and relates to the field of aerospace light metal material surface hard coatings, the preparation method comprises the steps that a Ti-Al transition layer and a Ti transition layer are sequentially deposited on the surface of an aluminum alloy matrix through physical vapor deposition, and an intermediate is obtained; and carrying out laser nitriding treatment on the intermediate to obtain a laser nitriding sample. A hardened layer with high hardness, high binding force and low brittleness can be formed on the surface of the aluminum alloy, the problems that the surface of an aluminum alloy base material is low in hardness, poor in wear resistance and the like can be remarkably solved, the coating has low surface roughness, and the application range of the aluminum alloy existing in light-weight precision components such as aerospace motion mechanisms is widened.

This invention discloses a TIG welding method based on alternating magnetic field assistance and nickel-based alloy welding wire, belonging to the field of metal welding technology. In the nickel-based alloy welding wire of this invention, the mass ratio of La to Zr is (2~3):1. It is prepared into a nickel-based alloy welding wire for welding nickel-based alloys. During the welding process, an alternating magnetic field is applied to effectively control the microstructure during the welding process, avoid the formation of continuous network films of carbides at the grain boundaries, thereby reducing grain boundary brittleness and significantly improving the mechanical properties and crack resistance of the welded joint. It is suitable for welding and manufacturing high-temperature components for aerospace and ultra-supercritical power plant boilers.

This invention relates to a biodegradable anti-stick film and its preparation method. The biodegradable anti-stick film comprises a top layer, a middle layer, and a bottom layer arranged sequentially. The top layer comprises polyadipate, polylactic acid, polybutylene butyrate, a compatibilizer, a chain extender, and a dual-antibiotic masterbatch. The middle layer comprises polyadipate, polyglycolic acid, polybutylene butyrate, a compatibilizer, a chain extender, and a dual-antibiotic masterbatch. The bottom layer comprises polyadipate, polylactic acid, polybutylene butyrate, a compatibilizer, a chain extender, and a dual-antibiotic masterbatch. Its advantages lie in the following: adding a compatibilizer to each layer improves the compatibility of the raw materials, thereby reducing the brittleness of the biodegradable anti-stick film; adding PBAT-carrier dual-antibiotic masterbatch to each layer controls the degradation rate of the biodegradable anti-stick film; adjusting the blending ratio of each layer component improves the mechanical properties, processing flowability, and biodegradability of the biodegradable anti-stick film; and coating the top layer with a UV-curable release coating ensures the application requirements of the biodegradable anti-stick film.

The application provides an acid core wire and a preparation method and application thereof, and particularly relates to the technical field of welding materials. The core wire comprises a steel belt sheath and a core filled in the steel belt sheath. The core comprises the following components in percentage of mass: 35-50% of rutile, 2.5-5% of zircon sand, 2.5-5% of potassium feldspar, 1.5-3% of potassium fluozirconate, 1.5-3% of quartz, 15-20% of metallic manganese, 3-5% of ferrosilicon, 15-20% of nickel powder, 1-2% of cobalt powder, 1-2% of molybdenum powder, 1-2% of aluminum-zirconium alloy, 1.5-3.5% of magnesium powder, 1-2% of perovskite, and the rest is atomized iron powder. The acid core wire has good welding process, good arc stability, less spatter, good appearance of weld formation, good deslagging property, high deposition rate and deposition rate, and the weld has the characteristics of high strength, high low-temperature impact toughness and corrosion resistance, and can meet the use requirement of high-strength Q690 rack steel.

The application discloses a kind of high fire endurance closed-cell foam ceramic material and its preparation method, and the weight percentage of the ceramic material raw material formula is as follows: white ceramic tailings 20-40%, tea crystal stone 15-30%, burned soil 5-15%, high-alumina sand 5-10%, desert sand 15-25%, light-burned magnesium 5-15%, plus foaming agent 0.1-3%.According to the weight percentage of the ceramic material raw material formula, normal foam ceramic A material, high-density foam ceramic B material or low-density foam ceramic C material is configured respectively, and the closed-cell foam ceramic material is obtained by ball milling, spray granulation, mixing and loading box sintering.The technical scheme of the application not only has simple process, low cost and superior performance, but also improves the fire endurance of the material, meets the use requirements of wall materials, widens the application field of closed-cell foam ceramic, and has broad market prospect.

The present invention relates to the technical field of organic silicon coatings, and discloses a method for preparing an insulating heat-conducting organic silicon coating, wherein the present invention uses N-(3-aminopropyl)acetamide, methacrylate-2-(perfluorooctyl)ethyl ester, (3-glycidoxypropyl)methyldiethoxysilane, methyltriethoxysilane, dimethyldiethoxysilane, glacial acetic acid, and modified silicon carbide as raw materials, and uses N-(3-aminopropyl)acetamide and methacrylate-2-(perfluorooctyl)ethyl ester to prepare intermediate 1, and prepares intermediate 2 by hydrolysis reaction, and then prepares intermediate 3 by ring-opening reaction with (3-glycidoxypropyl)methyldiethoxysilane, and finally prepares fluorinated organic silicon by co-hydrolysis-polycondensation method, and then mixes with modified silicon carbide to prepare insulating heat-conducting organic silicon coating. The insulating heat-conducting organic silicon coating prepared by the present invention has good insulation, flexibility, excellent thermal conductivity and corrosion resistance.

The invention relates to the technical field of deer blood tablets, in particular to a deer blood tablet and a preparation method thereof.The deer blood tablet is prepared from, by weight, 150-160 parts of deer blood powder, 70-80 parts of American ginseng powder, 70-80 parts of fructus lycii powder, 75-85 parts of disintegrating agent, 2.5-4 parts of magnesium stearate and 2.5-3.5 parts of carboxymethyl chitosan; wherein the disintegrating agent is a mixture of croscarmellose sodium and microcrystalline cellulose, and the mass ratio of croscarmellose sodium to microcrystalline cellulose is (8-12): 70; the deer blood tablet has the advantage of reducing the disintegration time of the deer blood tablet.