88 results about "Plumbago" patented technology

The invention discloses a preparation method of two-dimensional monolayer graphite alkene. 0.5 to 100 gram nitrates are dispersed and dissolved in 100 to 200 milliliter organic solvent and then 5 to 2000 gram nano powers of oxide or nitrate is added; after mixing to be ultrasonic under 40 to 59 HZ for 10 to 60 minutes, the organic solvent is evaporated, dried in vacuum and grinded into power with a dimension of 0.1 to 10 micron at last to get the catalyzer for monolayer graphite alkene; the catalyzer for monolayer graphite alkene with 0.5 to 50 gram is arranged in the container and pumped in protection gas with a flow of 20 to 200 milliliter per minute, then the container temperature is raised to 850 to 1100 degrees, after being in a constant temperature, the carbon source is pumped in with a flow of 10 to 500 milliliter per minute and the two-dimensional monolayer graphite alkene is acquired after cracking for 5 to 45 minutes under high temperature. The invention has the advantages of low device investment, low material cost, easy material acquisition, easy operation and technics and good reproducibility. The invention is suitable for scale production.

The invention discloses a method for preparing a composite graphite carbon cathode material, comprising the following steps that: 1. a step of adding and mixing materials, during which fine carbon powder and a caking agent with a weight ratio between 2:1 and 20:1 are added alternately in the stirring process, the mixture is stirred for 0.1 to 3 hours after adding the materials, the caking agent is selected from a thermoplasticity resin, asphalt and coal tar; 2. a step of increasing the temperature, during which the temperature is increased up to between 450 and 600 DEG C with a rate of 0.5 to3 DEG C per minute; 3. a step of keeping the temperature, during which the temperature of between 450 and 600 DEG C is kept constant for 1 to 10 hours; 4. a step of cooling to the room temperature; and 5. a step of graphitzation; wherein, the steps of 1 to 4 are performed without the protection of oxidation. The raw materials have high operating factor; the preparation method is environment-friendly and easy to implement; moreover, the composite graphite powder prepared has good isotropic properties and the characteristics of good high current performance, long cycle and low nonreversible capacity.

The invention relates to an aqueous graphite conducting paint and a preparation method thereof, comprising the raw materials with the mass percent: 14-20% of graphite, 0.4-5% of dispersant, 21-45% of film forming agent, 40-60% of de-ionized water and 0.1-0.5% of defoaming agent. The pH value range of the prepared conducting paint is 7-11, the viscosity range is 50-200mPa.s, the adhesive force is 2-3 level, the solidification temperature is 40-120 DEG C, the coating volume electric resistivity is 0.2-0.35 omega. cm, and the percentage content range of the solid is 25-35%. The aqueous graphite conducting paint has good storing stability, electric conduction, flow property and adhesive force as well as lower adding amount of the graphite.

The invention relates to a method for preparing the graphite powder, in particular relates to a method for preparing the graphite powder that is applied to the cathode of the lithium-ion secondary battery, which aims at overcoming the weaknesses of the prior natural spherical graphite powder preparation method that the craftwork is complicated, the quality of the obtained product is uniform and the production efficiency is low, so that a method for preparing the natural spherical graphite in the cycling shaping classification way. The natural crystalline flake graphite is primarily crashed in a mechanical crashing machine, and is cycled for milling, shaping and classification in a plurality of shaping classification machines. The method has simple craftwork and high control precision of the classification; the quality of the prepared natural spherical graphite powder is stable; the foreign matters in the graphite can be thoroughly removed; the content of the fixed carbon is high; at the same time, the production efficiency is improved, and the method is free from polluting the production environment.

The present invention discloses a graphite oxide loading the nano metallic silver particle and the preparing method thereof. The graphite oxide is prepared by the following procedures: adding the graphite oxide into the dispersing agent to do ultrasonic dispersion and the mixed liquid forms; adding the silver salt solution to the mixed liquid prepared in the last procedure and stirring; doing stirring at the condition of darkroom condition; centrifugation, washing and vacuum furnace drying the mixed liquid obtained in the last procedure and the graphite oxide loading the nano metallic silver particle is obtained. The present invention fully uses the oxygen group on the surface of the graphite oxide to form the nucleation center, and the more surface area of the graphite oxide piece is used to facilitate that the nano metallic particles can uniformly subsides on the graphite oxide piece thereby reducing the agglomeration property of the particle and increasing the specific surface area of the particle; the composition prepared by the invention is combined with the property of graphite oxide and the metallic elemental silver, has a better application prospect and economic benefit in the fields of biological medicine and catalyzing, etc.

The invention provides a graphite paint used for casting a titanium and a titanium alloy. The key point is that the invention is prepared by the uniform fixing of a fireproof aggregate powder of 28-70wt%, an adhesive of 29-70wt%, a surfactant of 0-2wt% and an antifoam agent of 0-1wt% according to the weight percentage. The fireproof aggregate powder consists of at least one of a yttria powder, a yttrium rare earth oxide powder and a zirconia powder; the granularity of the fireproof material powder is less than 0.053mm; the adhesive is a zirconium acetate solution with the consistency of 30-40wt%; the surfactant is a JFC; the antifoam agent is a normal butanol. The invention has the advantages that: (1) the filling capability of titanium liquid is effectively improved, and the defects such as pouring shortage, cold shut, cracks, etc. which are caused by the chilling of graphite is reduced; (2) the surface finish of casting is obviously improved, (3) the thermal stability is high, the thickness of the pollution layer of the casting is obviously lower than that of the normal machine-made type; (4) the withdrawing capability of the graphite mold in the solidification process can be improved, and the blocking function of the mold can be reduced when the casting is contracted; (5) the mold is easy to be removed.

The invention relates to a preparation method of a green man-made diamond, which adopts plumbago as the material and FeNi or NiMnCo alloy as the catalyst, the mass ratio of the plumbago and alloy catalyst is that plumbago: FeNi or NiMnCo is equal to 1:0.3-1. The invention is characterized in that Mg3N2 additive is added into the plumbago, the mass ratio of the plumbago and the Mg3N2 is that plumbago: Mg3N2 is equal to 1:0.003-0.02; the preparation technique process is that: the powdery plumbago, Mg3N2 and alloy catalyst meeting the mass ratio are mixed evenly, pre-pressed into cylindrical bar stock and then are placed into a pyrophyllite synthesized block; then the assembled synthesized block is placed into a high pressure and high temperature chamber of a hexahedral anvil diamond press, then the temperature raises to 1550-2000K within 0.5-5 minutes and at the same time the block is pressurized at the pressure of 4.0-4.8 GPa, then is kept at the temperature for 0.5-3 minutes, and then the pressure is improved to 5.2-6.0 GPa, then is kept at the temperature for 10-20 minutes, then a green diamond crystal can be obtained after the heating process is stopped, the pressure is relieved and the impurities are removed. The method simplifies the technique process, reduces the manufacturing cost and is convenient for being carried out.

The invention provides a method for preparing an element solution of a quantization carbon material. The method comprises the following steps: (1) grinding a plumbago carbon material into powder; (2) adding proper amount of non-ionized water and oxydol H2O2 into plumbago carbon powder to prepare a mixed solution by mixing; (3) introducing the mixed solution into an oxidizing anode of carbon particle suspension preparing equipment for aqueous electrochemical treatment; and (4) outputting the solution after the carbon particle suspension is subjected to circulating treatment for 6 to 15 hours in a quantization preparation system. The element solution of a quantization carbon material prepared by the method with the special process makes the generated carbon particles fined into substances of an ultra hydrophilicity binary synergetic micro-interface material (0.6 to 0.9nm sacle) so as to generate unexpected functions and effects, and can generate a substance of an interlaminar compound bending structure. The element solution can be applied to environmental protection, an energy storage device and a nuisanceless fuel battery, can effectively play roles in improving the quality of a petroleum product and improving fuel value, and is environment friendly.

The invention relates to a preparation method of a green diamond, which adopts plumbago as the material and FeNi or NiMnCo alloy as the catalyst, the mass ratio of the plumbago and alloy catalyst is that plumbago:FeNi or NiMnCo is equal to 1:0.3-1. The invention is characterized in that Li3N additive is added into the plumbago, and the mass ratio of the plumbago and the Li3N is that plumbago:Li3N is equal to 1:0.005-0.025; the preparation process is that: the powdery plumbago, Li3N and alloy catalyst meeting the mass ratio are mixed evenly, pre-pressed into cylindrical bar stock and then are placed into a pyrophyllite synthesized block; the assembled synthesized block is placed into a high pressure and high temperature chamber of a hexahedral anvil diamond press, then the temperature is raised to 1450-1950K within 0.5-5 minutes and at the same time the block is pressurized at the pressure of 4.0-4.8 GPa, and is kept at this temperature for 0.5-3 minutes; then the pressure is improved to 5.2-5.8 GPa, and is kept at the temperature for 8-20 minutes; then a green diamond crystal can be obtained after the heating process is stopped, the pressure is relieved and the impurities are removed. This method simplifies the technique process, reduces the manufacturing cost and is convenient for being carried out.

The invention discloses a lead-free soft soldering. Calculated by weight percentage, the lead-free soft soldering consists of following compositions: 0.1 to 3.9 per cent of Al, 0.0001 to 0.5 per cent of Se and rest of Sn. The method of manufacturing the invention is: (a) after refined tin is added into a plumbago pot to be melted, temperature rises to 1100 DEG C. refined copper is added and evenly mixed. The refined tin and the refined copper are melted to be liquid tin copper alloy. The liquid tin and copper alloy becomes the alloy ingot of tin and copper after standing for 30 minutes; (b) the refined Ag is added and melted again and the temperature rises to above 1600 DEG C. Pure nickel is added and melted. The liquid Ag and nickel becomes the alloy ingot of Ag and selenium after standing for 30 minutes; (c) with the refined tin added into and melted and the temperature rising to above 600 to 1000 DEG C, covering agent is added to isolate the liquid level of tin from oxygen in the air. Pure selenium is added and melted. The liquid tin and selenium becomes the alloy ingot of tin and selenium after standing for 30 minutes; (d) three gold ingots, Ga or Cu and the rest of tin and put into a stainless steel kettle to be melted according to the required formulation, which can be made into a tin wire, a tin bar and a tin ball.

The invention provides a composite powder of copper, aluminum / nickel and graphite and a preparation method thereof. The composite comprises the constituents by weight: 20-40 percent of Ni, 40-60 percent of Cu, 4-10 percent of Al; the rest is C. The preparation method of the invention comprises the steps: first, intermediate material of copper and aluminum alloy powder is prepared; then intermediate materials of nickel graphite powder are made, and the copper, aluminum / nickel and graphite composite powder is prepared by mechanically mixing the intermediate material of copper and aluminum alloy powder with the nickel graphite powder. The copper, aluminum / nickel and graphite employed in the invention belong to the coating material of medium-temperature seal configuration. The powder has the advantages of good usability in coating processing, and the coating has superior binding strength and seal configuration performance; employing hot spraying technique to prepare the copper, aluminum / nickel and graphite coating has good wear resistance and sealing performance; if being applied to the compressor part of an engine, the invention can achieve excellent effect.

A rotor of rotary impeller of compositing graphite and ceramic belongs to the field of the purification treatment of aluminum melt. The invention comprises a graphite nozzle and a graphite-ceramic composite nozzle. The graphite nozzle is connected with the graphite-ceramic composite nozzle. The graphite-ceramic composite nozzle comprises two parts, and the internal part is a graphite tube which is covered with a ceramic bushing. The internal part of the graphite-ceramic composite nozzle is a through hole which is a gas channel. The graphite nozzle is equipped with a jet orifice for gas ejection. The ceramic material is silicon nitride bonded silicon carbide material, and the component and the weight percent are: 45 to 70 percent of silicon nitride and 30 to 55 percent of silicon powder. The ceramic material of the invention has the advantages of the good high temperature oxidation resistance, the good thermal shock resistance, the strong slag corrosion resistance, the high strength and the wear resistant, preventing from the erosion and oxidation of the graphite tube from aluminum liquid and air, thereby achieving the longer service life of the rotor of rotary impeller of compositing graphite and ceramic than that of the original rotor of rotary impeller with full graphite material.

The present invention relates to a method for preparing a corrosion resistant material and a corrosion resistant Roots vacuum pump, which belongs to the technical field of corrosion resistant material and application. The compositions of the ingredients in weight percentage are as follows: 55.8 to 56.7 percent of plumbago, 6.2 to 6.3 percent of fiber glass, 7.5 to 7.9 percent of phenolic resin, and 29.4 to 30.1 percent of wetting agent; and a coupling agent, an accelerant, a thinner and a parting agent are added additionally. The method comprises the following steps: adding the plumbago to be uniformly stirred after mixing phenolic resin with accelerant, and preparing the mixture into a premix for standby; sufficiently stirring the wetting agent, the thinner, the coupling agent and the parting agent to be prepared into liquid cement, and then orderly adding the fiber glass and the premix to knead, and obtaining a preparation material after natural air drying; and heating a mould, loading materials into the mould, matching the mold, keeping the temperature and pressure after pressurizing at a temperature of between 160 and 180 DEG C, then decompressing and unloading the mold, and obtaining part products after natural cooling, thereby obtaining a overflowing part of the Roots vacuum pump. The corrosion resistant material has good corrosion resistance, the prepared corrosion resistant Roots vacuum pump has the advantages of good integrity, no delaminating phenomena, good corrosion resistance, long service life, and low cost.

The invention relates to an agilawood joss stick and a preparation method thereof. The agilawood joss stick is prepared from 80-95% of agilawood powder, 5-15% of plant adhesive, and 1-5% of graphene.The preparation method comprises the following steps: grinding and screening-stirring and fermenting-pressing and forming-drying of the joss stick in shade-cellaring and alcoholization. According to the invention, the plant adhesive and graphene are adopted as ingredients of natural agilawood powder, on one hand, the taste of the natural plant adhesive in the joss stick can be volatilized naturally, one the other hand, the drug property ad fragrance of joss stick can be softened, the charm purity of the agilawood is reserved to the greatest extent in incineration; and the agilawood joss stickadded with graphene improves the breaking-resistant strength of the agilawood joss stick by more than three times, and has the characteristics of being high in toughness, free from fracture, convenient to use, and convenient for transportation and storage. The agilawood joss stick disclosed by the invention is matched with the preparation process of the invention, joss stick forming is kept clear,the variety and content of agilawood sesquiterpene are remarkably increased, and the quality of the agilawood joss stick is improved.

The invention discloses a mothproof and waterproof coating for a garden wooden bridge and a preparation method thereof. The coating comprises the following components: polyacrylamide, polyurethane, graphene, superfine talc powder, nano silicon dioxide, nano aluminum oxide, white carbon black, high-viscosity attapulgite clay, pyrethrum, radix angelicae, cortex cinnamomi, fructus quisqualis, radix euphorbiae lantu, anise, and radix sanguisorbae. The preparation method comprises: extracting the traditional Chinese medicine components respectively to obtain an extracting solution, and making the extracting solution into freeze-dried powder; adding polyacrylamide and a polyurethane aqueous solution into a reaction kettle, adding a graphene aqueous solution, and performing stirring reaction for 0.5-1.5h; and adding the superfine talc powder, the nano silicon dioxide, the nano aluminum oxide, the white carbon black and the high-viscosity attapulgite clay, mixing the materials uniformly, then adding the freeze-dried powder, and mixing the materials uniformly to obtain the coating. The coating is applied to decoration of the garden wooden bridge, and enables the wooden bridge to not only have good waterproof and anticorrosive effect but also have excellent mothproof and mildewproof properties, so that the coating has a good application value.

The invention relates to a lead fluoride crystal co-doped with ytterbium and alkaline and a preparation method thereof. The structural formula of the crystal is Ybx: My: PbF2, and the growth method of the crystal includes the following steps: (1) the values of x and y are determined; (2) the raw material is weighed in proportion, is fully and evenly mixed and is pressed into blocks, the blocks are put into an iraurite, platinum or plumbago crucible, PbF2 crystal is adopted as a seed crystal, growth atmosphere is high purity argon or CF4 gas, and melt growth method is adopted. Experiments show that the crystal of the invention has large absorption and emission section, long fluorescence life time and high thermal conduction.

The present invention relates to a method with adoption of stibium element which improves the formation of A-type graphite, and is suitable for the requirement on the motor cylinder collar, such as high abrasion-proof quality, and long life span. The present invention uses stibium element to make the size of graphite in the metallography of the cylinder collar be diminished significantly, to obtain the shred-like A-type graphite with even distribution. The latent heat of the melting stibium is great (19875.8J / mol), therefore, when the stibium is added, the temperature in the micro area is caused to vary, which increases the quantity of the cores of the graphite. The volume of the added stibium is controlled between 0.070 and 0.096 percent.

The invention discloses a tree insect prevention and antifreeze paint and a preparing method. The paint is prepared from talcum powder, micropore calcium carbonate, high viscosity attapulgite clay, polyurethane, graphene, pyrethrum, radix rehmanniae, cinnamon, golden larch bark, radix euphorbiae lantu, thunder godvine and acorus calamus. The preparing method comprises the steps that traditional Chinese medicine components are weighed and smashed, and then are placed into a Soxhlet extractor to be extracted, and an obtained extracting solution is concentrated and prepared into lyophilized powder; a polyurethane aqueous solution is added into a reaction kettle, a graphene aqueous solution is added, and a stirring reaction is conducted for 0.5-1.5 h; the talcum powder, micropore calcium carbonate and the high viscosity attapulgite clay are added, and are placed into a shearing machine to be sheared after being evenly mixed and stirred, and then the lyophilized powder is added into the mixture for ultrasonic treatment for 20-30 min, so that the paint is obtained. The tree insect prevention and antifreeze paint has a good insect prevention and sterilization effect, is long in pesticide effect, further has a good heat preservation effect, and has high application value and a good prospect.

The execution mode of the invention provides a friction plate and the application technology, production technology and the special mold; the friction plate includes a glass cloth and a wearing course, the ingredients and content of the wearing course are as follows: 15-30 shares of polyamide resin; 1.5-3 shares of mica ferric oxide; 4-8 copper fiber; 10-17 shares of plumbago; 1-5 shares of friction powder; 1.5-3 shares of magnesia; 1-4 shares of petroleum coke; 13-30 shares of meerschaum; 0.1-2 shares of stearic acid; 2-15 shares of silicon ashes; 1-12 shares of short glass fiber; 2-12 shares of supramoly and 1-10 shares of natural cellulose fiber. The execution mode of the invention further provides an application technology, production technology and the special mold of the friction plate. The friction plate has the advantages of wear-resistant, fatigue-resistant, and corrosion-resistant, and when in use, the special mold can reduce the manufacturing cost of the friction plate.

The present invention relates generally to a genetic sequence encoding a polypeptide having methyltransferase activity and the use of the genetic sequence and / or the polypeptide to modify one or more phenotypic characteristics of a plant. More particularly, the methyltransferase of the present invention acts on flavonoids, preferably wherein the flavonoid is an anthocyanin. Even more particularly, the present invention relates to a polypeptide having S-adenosyl-L-methionine:anthocyanin 3′-O-methyl-transferase or S-adenosyl-L-methionine:anthocyanin 3′,5′-O-methyltransferase activity. The present invention still further provides a genetic sequence encoding a polypeptide having methyltransferase activity derived from Petunia, Torenia Fuchsia or Plumbago or botanically related plants. The instant invention further relates to antisense and sense molecules corresponding to all or part of the subject genetic sequence as well as genetically modified plants as well as cut flowers, parts, extracts and reproductive tissue from such plants.

The invention discloses a support roller sleeve manufacturing method, in particular to a hollow graphite support roller sleeve manufacturing method. The invention aims to manufacture a support roller sleeve which has long service life and improves the flatness of the steel belt. The hollow graphite support roller sleeve manufacturing method includes that the steps of impregnating in the impregnation fluid, spraying antioxidant on the surface of the hollow graphite support roller sleeve and the repeated polishing are added to the concrete implementation steps of the manufacturing method of the hollow graphite support roller sleeve; the surface flatness and the service life of the hollow graphite support roller sleeve are improved. The support roller sleeve manufacturing method is widely applicable to the continuous-casting and tandem-rolling production process of the steel strips or billets.

The invention discloses a steel-aluminium-9 graphite clad plate casting and rolling composite method which belongs to the steel-aluminium and graphite clad plate semisolid casting and rolling composite research field. A semisolid casting and rolling composite clad plate formed by a 08Al steel plate of a thickness of one point two millimeter and an aluminium-9 graphite cladding of a thickness of one point three millimeter is casted and rolled compositely under conditions of a preheating temperature of five hundred and eight DEG C for the steel plate, an solidoid ratio of thirty point one percent for aluminium-9 graphite semisolid sizing agent, a diffusion time of twenty-seven seconds between a compound tip inner steel plate and an aluminium-9 graphite cladding; and then a steel-aluminium-9 graphite semisolid casting composite clad plate can be got with an interface shear strength of seventy-one point four MPa. Compared with sixty-nine MPa which is the interface shear strength of the clad plate of a CN1915547 patent, the invention has obvious improvement in terms of the interface shear strength.

The invention relates to a preparation method of tin dioxide nano material with a controllable morphology. The growth morphology of tin dioxide is controlled by adjusting the atmosphere in an arc chamber; the method comprise the steps that firstly, high-purity elemental tin powder is put into a self-made plumbago pot to be sufficiently compressed and served as an arc discharge anode; then the high-purity elemental tin powder is put into the arc chamber and fixed, air in the arc chamber is pre-extracted, the atmosphere in the arc chamber is adjusted; and a power supply is turned on, the distance between a cathode and the anode is controlled through a motor, and arc discharge is produced between the cathode and the anode. Tin dioxide nano material with different morphologies can be prepared by controlling the proportion of air to buffer gas in the arc chamber. Compared with the prior art, the method has the advantages of simple technology, short period, good morphology controllability and the like.

The invention discloses a traditional Chinese medicine composition for treating cerebral apoplexy. The traditional Chinese medicine believes that the cerebral apoplexy belongs to the category of stroke, analogous apoplexy and apoplexy in the traditional Chinese medicine. The pathogenesis of the cerebral apoplexy is complicated, and the main manifestations of the cerebral apoplexy are superficial asthenia syndromes such as endogenous wind, pathogenic heat, phlegm evil, blood stasis and orifice block. The traditional Chinese medicine composition for treating the cerebral apoplexy is decoction prepared by decocting traditional Chinese medicines having the effects of dispelling the wind, reducing phlegm, promoting blood circulation to remove meridian obstruction, clearing away heat and toxic materials and relieving spasm for resuscitation with water, wherein the traditional Chinese medicines include gymnocladus chinensis, farinose twin-sorus fern herb, laminated sanicle herb, linearleaf thistle root or flower, Chinese plumbago, smoothfruit ventilago root and stem, cliff starwort herb, nervilia fordii, daghestan sweetclover herb, pulvis ferri, storax and calamus. Clinical experiments prove that the total effective rate of the traditional Chinese medicine composition reaches 97.1%, which is obviously higher than that of a control group.

The invention discloses a drought-resistant agent for relieving paeonia ostii drought stress and application of the drought-resistant agent. The drought-resistant agent is mainly prepared from graphene oxide, alpha-pimacol and ferulic acid. In the drought-resistant agent disclosed by the invention, the graphene oxide, alpha-pimacol and ferulic acid act together, so that the product has the function of relieving the drought stress of paeonia ostii, and the three substances have a remarkable synergistic interaction effect. Meanwhile, the drought-resistant agent also has the advantages of simpleoperation, short period, low cost, quick effect, easy popularization and utilization and the like, and has a positive promotion effect on cultivation of paeonia ostii in arid and semi-arid regions inChina.

The invention manily relates to the technical field of planting and discloses a method for storing shepherd's purse seeds. The method comprises the steps of soaking, drying, mixing seeds and storing.The method is simple, the intact ratio of the shepherd's purse seeds stored for six years reaches 94.5%, the germination rate reaches 79.6%, the preservation value of the shepherd's purse seeds is obviously improved, frequent planting and refreshing can be avoided, and lots of storage cost is saved. The harvested seeds are arranged in a treatment solution to be subjected to short-term soaking, sothat seed coat is uniformly contacted with the treatment solution, a protective film is formed on the surface of the treatment solution, respiration of seeds is reduced, growth of diseases and pests is inhibited, and intactness and germinating ability of the seeds are maintained. The seeds are dried after soaking, damage of a high temperature on nutritional ingredients and damage of a low temperature on dormancy substances can be avoided, and the storage time of the seeds is prolonged; and graphene oxide is added to be mixed with the seeds after drying, a dense protection layer is formed on the seed surface, the oxygen content and moisture content of the seeds are balanced, the activities of radicle cells are enhanced, and the storage time of the seeds is prolonged.

The invention provides a graphite bushing used on electromagnetic field aided semi-continuous casting for aluminium alloy slab ingot, which comprises front, back, left and right four pieces of graphite. A plurality of insulation layers are respectively arranged at the adapting places between adjacent graphite; the graphite inner bushing is symmetric construction in vertical direction; the inner wall of the graphite inner bushing is provided with tapers; the upper end face and the lower end face of the graphite inner bushing are designed with a slot respectively. The body of the graphite inner bushing is spliced by four pieces of graphite; the adapting places are filled with insulation material, so as to reduce the induction heating effect of the alternate electromagnetic field to the graphite inner bushing and to improve the utilization ratio of the electromagnetic field; the graphite inner bushing is designed with vertical symmetric construction; therefore, when the lower surface is damaged, the graphite inner bushing can be turned over upside down and can be used sequentially, and the service life of the graphite inner bushing is improves one time. The contact surfaces between the graphite inner bushing and the aluminum fused mass are designed with tapers, so as to make the cast ingots being easy demoulded. The invention has the advantages of great practicality and wonderful application value.

The invention discloses a graphite melting furnace which comprises a transmission device, a heating chamber, an insulating layer in the heating chamber, and material stirring and pushing devices in the heating chamber. The heating chamber is made of corrosion and high temperature resistant metal materials; and the material stirring and pushing devices adopt the structure that a helical fin is arranged on the inner wall of the heating chamber. The invention further adopts the improved scheme that the discharge end of the heating chamber is communicated with a cooling chamber. Due to the heating chamber made of high temperature resistant stainless steel materials, the inner surface of the high temperature chamber can not be corroded by material, and corrosives can not fall into the material, so that the processing time of the next purification procedure is reduced, the dosage of purifying medicines is saved, and the service life of the melting furnace is particularly prolonged. The graphite melting furnace is provided with the cooling chamber, and has the advantages of quick cooling speed and high production efficiency; and meanwhile, the invention greatly improves the operating environment and reduces the labor intensity of operators.

The invention discloses a preservative for Chinese herbaceous peony cut flower vase. The preservative is prepared from graphene oxide, gibberellin, calcium salt, citric acid, cane sugar and water. Sucrose is used as an exogenous nutrient donor, sound field energy is provided for fresh cut flowers, the flowering rate is increased, and the service life of an inserted bottle is prolonged; citric acidis utilized, so that the pH of the preservative is reduced, bacterial reproduction is inhibited, and blockage of cut flower conduits is reduced; graphene oxide is utilized, and due to the large surface area and hydrophilicity, the graphene oxide has the functions of adsorbing microorganisms, conveying moisture and nutrients and enhancing the water absorption capacity of stems; calcium salt is adopted to increase osmotic pressure of the water aqua and keep moisture balance; and the gibberellin plays a positive role in relieving membrane lipid peroxidation, the vase life of the peony cut flowers is effectively prolonged, and the blooming quality of the cut flowers is ensured.

The invention discloses a steel-aluminium-5 graphite clad plate casting and rolling composite method which belongs to the steel-aluminium and graphite clad plate semisolid casting and rolling composite method research field. A semisolid cassting and rolling composite clad plate formed by a 08Al steel plate of a thickness of one point two millimeter and an aluminium-5 graphite cladding of a thickness of one point three millimeter is casted and rolled compositely under conditions of a preheating temperature of five hundred and thirty-two DEG C for steel plate, an solidoid ratio of thirty-five point three percent of aluminium-5 graphite semisolid sizing agent, a diffusion time of twenty-one seconds between a compound tip inner steel plate and an aluminium-5 graphite cladding; and then a steel-aluminium-5 graphite semisolid casting and rolling clad plate can be got with an interface shear strength of sixty-nine point two MPa. Compared with sixty-seven MPa which is the interface shear strength of the clad plate of a CN1915547 patent, the invention has obvious improvement in terms of the interface shear strength.