43 results about "Fraxinus mandschurica" patented technology

The invention relates to technology for treating cultivation seeds of fraxinus mandshurica drought-resisting nursery stocks, and relates to seed treatment technology. Treatment solution, namely mixed aqueous solution, of fraxinus mandshurica seed is prepared by dissolving analytically pure gibberellin into a small amount of 95 percent alcohol, mixing the dissolved analytically pure gibberellin and anhydrous CaCl2. The concentration of GA is 300mg / L, the concentration of CaCl2 is 1.4 percent. After being treated by the treatment solution of the fraxinus mandshurica seed, fraxinus mandshurica seeds sprout and germinate normally; and fraxinus mandshurica seedlings are little damaged and grow better under the drought condition; therefore, the drought resistance capacity of the fraxinus mandshurica seedlings can be improved by immersing the seeds in the treatment solution of the fraxinus mandshurica seed before seeding.

The invention discloses a dendrobium officinale, fruit and vegetable beverage which is prepared from the following raw materials in parts by weight: 17-22 parts of dendrobium officinale, 12-18 parts of oat fibers, 2-4 parts of water caltrop stems, 6-8 parts of rice vinegar, 8-9 parts of grape syrup, 0.9-1.1 parts of fraxinus mandshurica, 3-5 parts of shrimp sauce, 2-4 parts of cherry-apple tree leaves, 8-10 parts of corn gluten meal, 8-9 parts of apple powder, 9-12 parts of bitter gourds, 12-13 parts of celery leaves, 12-14 parts of soybean milk, 3-4 parts of lily flowers, 1-2 parts of herbs of sessile skullcap, 6-7 parts of edible cactus, 10-12 parts of carrot juice, 8-10 parts of semen coicis, 10-12 parts of nutrient additives and a proper amount of water. The beverage disclosed by the invention contains the shrimp sauce, various vegetable and fruit juices, is high in protein content, and contains abundant mineral substances such as potassium, iodine, magnesium and phosphorus, as well as other components such as vitamin A and aminophylline so as to be rich in nutrition; in addition, the dendrobium officinale, fruit and vegetable beverage contains various Chinese herbal medicine extracting solutions, is used for clearing liver and improving vision and can also be used for preventing cold headache and wind-heat clouded vision; and the dendrobium officinale, fruit and vegetable beverage can also be used for beautifying, is good in drinking taste, and has the preventing and health-care effects.

The invention discloses a preparation process of a composite ceramic insulator. The preparation process comprises the following steps: S1, preparing the following raw materials: 20-30 parts of Zhongxiang soil, 20-40 parts of fraxinus mandshurica wood, 20-40 parts of Qingcaoling soil, 20-30 parts of Jiexiu soil, 20-30 parts of kaolin, 20-30 parts of bauxite, 5-10 parts of mullite, 10-15 parts of feldspar, 20-30 parts of a boron-free high-strength glass fiber, 18-25 parts of an epoxy resin, 3-5 parts of a flame retardant, 10-15 parts of nylon, 10-15 parts of quartz sand, 1-3 parts of a demoldingthermoplastic material, 3-5 parts of a curing agent and 10-15 parts of an ultralow temperature adhesive. The preparation process is smart in design, and by adopting the preparation process of the product, the mechanical strength of a ceramic material is greatly improved; due to dehydration operation in the step S5, the compactness of a soil cake is ensured, and the soil cake can be well shaped; due to polishing of a polishing machine in the step S12, the smoothness of a ceramic part can be ensured, a macromolecule self-cleaning coating can be conveniently sprayed, then the service life of theceramic part can be ensured, the service life of the macromolecule self-cleaning coating can be ensured, and the security properties of the ceramic part can be also ensured.

The invention discloses fraxinus mandshurica extract for treating rheumatoid arthritis and belongs to the technical field of traditional Chinese medicines. The fraxinus mandshurica extract comprises the following compounds in percentage by weight: 50%-95% of fraxinol glucoside, 2%-15% of fraxin, 0.1%-1% of isoscopolin and 0.1%-1% of isofraxidin-beta-D-glucoside. The fraxinus mandshurica extract has the beneficial effects of being low in toxicity, safe and reliable in comparison with chemical medicines such as hormones and the like while being applied to the medicine for treating rheumatoid arthritis; moreover, the fraxinus mandshurica leaf resources are abundant, the waste material is changed into things of value and the extraction process is simple; the fraxinus mandshurica extract and pharmaceutically acceptable excipients or auxiliaries materials can be used for preparing a medical composition; and the medical composition can be prepared into various dosage forms such as gastrointestinal tract dosage forms consisting of tablets, pills, capsules, particles, tinctures and oral liquid as well as gastrointestinal tract external dosage forms consisting of injections, external-use preparations and the like by adopting the conventional method of the galenic pharmacy.

The invention discloses a production method of a special highly-moisture-proof intermediate-density fiber board for an office table. The method comprises the following steps: (1) preprocessing raw materials; (2) screening; (3) digesting to soften; (4) grinding; (5) applying glue, and drying; (6) pre-pressing; (7) thermally pressing; (8) sawing and sanding; (9) clinging to the surface, and thermally pressing; and (10) cutting the edge to obtain the special board for the office table. According to the method, eucalyptus bark, branches and waste leftovers in board manufacturing are treated as main raw materials; miscellaneous woods such as pine wood, basswood, briar wood, fraxinus mandshurica, beech wood, acer mono wood and lauan wood are added; the wastes are turned into treasures; and the wood resource is fully effectively utilized; hydrogenated rosin and thiourea are added to a moisture-proof urea resin adhering agent, so that the board has the advantages of being environmentally friendly, low in formaldehyde, and outstanding in moisture-proofing performance. The board is outstanding in moisture-proofing performance, high in water resistance, low in formaldehyde content, high in intensity, and high in durability, and is a safe and environmentally-friendly board.

The invention discloses a cultivation technique for Fraxinus mandshurica. The cultivation technique is realized by adopting the following steps: (1) seed treatment: a step of accelerating germination since Fraxinus mandshurica seeds are seeds with a long dormancy period and can sprout only after germination acceleration, wherein common methods for germination acceleration comprise A, an over-winter stratification burial-storage method, and B, a temperature-varying treatment method; (2) seeding: a step of carrying out seeding in spring, carrying out full watering after seeding and carrying out timely chemical weeding before seedling emergence, wherein 0.5 to 0.7 kg of base fertilizer is applied per hectare while soil is turned up, and during ridge cropping, the seeding rate per mu is 35 to 40 grams and the thickness of covering soil is 1 to 2 cm; and (3) management in a seedling stage: a step of strengthening nutrient and water management, digging out Fraxinus mandshurica seedlings in autumn when the seedlings grow to a height of 20 to 30 centimeters in the year, temporarily planting the Fraxinus mandshurica seedlings for overwintering when temperature is stable and ground temperature drops to below 0 DEG C, digging out the temporarily-planted Fraxinus mandshurica seedlings and planting the seedlings in a mountain in mid-to-late April in spring, and carrying out timely soil-thawing afforestation since Fraxinus mandshurica has a rejuvenation period of about 20 days.

The invention discloses a biomass forming fuel. The biomass forming fuel is prepared from the following components in parts by weight: 3.1 parts of walnut shell, 1.2 parts of robinia pseudoacacia saw dust, 1.8 parts of pine tree saw dust, 2.8 parts of fraxinus mandshurica saw dust, 0.4 part of ammonium dihydrogen phosphate, 1.6 parts of corncob, and 2.2 parts of flax straw powder. The biomass forming fuel has the advantages of being long in combustion time, and obviously high in combustion heat value, combustion rate and heat efficiency.

The invention relates to the technical field of grooving equipment, in particular to a grooving machine for processing fraxinus mandshurica wood. The grooving machine for processing the fraxinus mandshurica wood replaces manual wood grooving, time and labor are saved, the wood grooving rate is increased, and meanwhile, control over the wood grooving depth is facilitated. The grooving machine for processing the fraxinus mandshurica wood comprises a base, an adjusting device, a first motor, a driving bevel gear, a driven bevel gear, a lead screw shaft, a sliding rod, a first sliding block, a first connecting plate, two sets of first electric push rods, a second connecting plate, a second motor and a grooving wheel. The first motor is fixed to the right side of the top end of the base throughthe adjusting device. The output end of the first motor is connected with the driving bevel gear. The driving bevel gear is in engaged transmission connection with the driven bevel gear. The driven bevel gear is fixed to the bottom of the lead screw shaft. The lead screw shaft is rotationally connected with the adjusting device. The sliding rod is fixedly connected with the adjusting device. Thefirst sliding block is rotationally connected with the lead screw shaft and is in sliding connection with the sliding rod. The first connecting plate is fixed to the left side of the first sliding block.

The invention discloses a wood sawing device for forestry. The device structurally comprises a wood sawing table, a placing frame, a window, a saw blade and a propelling mechanism, wherein the placingframe is fixedly installed on the right side of the front end of the wood sawing table, the placing frame is positioned at the front end of the window, the window is embedded on the right side of thefront end of the wood sawing table, and the saw blade is installed inside the wood sawing table. A plate body buckles semi-cylindrical fraxinus mandshurica, an air bag is pneumatically transmitted through an external air cylinder, four push rods push four pressing plates, the pressing plates are adjusted through a hinge shaft, the edge of the sawn face of the cylindrical fraxinus mandshurica is better cooled and pressed through the aluminum material of the pressing plates, the edge of the sawn face of the cylindrical fraxinus mandshurica is reduced from warping and cracking, the blade is ejected through a return spring, an electromagnetic block is powered by an external power supply, the electromagnetic block and a sliding shaft are magnetically adsorbed, at the moment, the sliding shaftslides in an arc track inside a sliding rail, the blade is driven to move in an arc shape, and fine burrs generated at the edge of the sawn surface of the semi-cylindrical fraxinus mandshurica are effectively removed.

The invention discloses a manufacturing process of a filter element of a boiler air filtering device. The manufacturing process comprises the following steps: S1, preparing sepiolite powder; S2, adding the sepiolite powder for ultrasonic dispersion treatment; S3, obtaining functionalized sepiolite powder; S4, obtaining fraxinus mandshurica fiber pulp; S5, carrying out ultrasonic treatment for 10-15 min and then carrying out extraction for 80-150 min to obtain fraxinus mandshurica fibers; and S6, uniformly mixing the functionalized sepiolite powder and fraxinus mandshurica fibers according to amass ratio of 1:(5-10), and drying an aluminum honeycomb plate to obtain the filter element of the boiler air filtering device. The filter element of the boiler air filtering device is good in abrasion resistance, suitable for being used in severe environments, high in purification efficiency, resistant to high temperature and corrosion, long in service life, small in wind resistance and capableof effectively removing solid dust particles in air.

The invention discloses a fraxinus mandshurica water retention and afforestation method, and belongs to the technical field of water retention and afforestation. The method comprises the following steps of selection of an afforestation land, preparation of a water-retaining agent, soil preparation, seedling selection and transportation, application of the water-retaining agent, afforestation and young forest tending management, wherein the water-retaining agent comprises coconut soil, aloe gel, plant starch, potassium alkyl sulfate and gelatin. Based on the principle of matching site with trees, by applying the water-retaining agent, the method has the beneficial effects that (1) multiple water retention means are used for comprehensive treatment, so that the water retention efficiency andthe afforestation survival rate are improved; (2) the operation is simple and convenient and the popularization is easy; and (3) the method is environment-friendly and does not pollute the soil.

The invention relates to a cultivation medium and method for cultivating lentinula edodes by using wood shavings instead of traditional miscellaneous wood chips. The optimal formula of the medium forcultivating bagged materials comprises the following raw materials in percentage by mass: 56% of traditional miscellaneous wood chips, 24% of wood shavings, 18% of bran, 1% of gypsum powder and 1% ofwhite sugar. The average bag yield reaches 0.83 kg, and the biological efficiency reaches 83%. The wood shavings are mainly from wastes produced by wood processing tree species such as red oak, Sapele, birch, fraxinus mandshurica, black walnut and the like. Lentinula edodes cultivation is carried out by using the wood shavings instead of the traditional miscellaneous wood chips, the mycelial growth speed, and the agronomic characters, yield, biological efficiency, economic benefits and the like of sporocarps are researched, and results show that lentinula edodes cultivation by using the wood shavings instead of the traditional miscellaneous wood chips is feasible. According to the method, edible fungus cultivation is carried out by using the waste wood shavings, wood product leftovers areturned into wealth, the selectivity of the lentinula edodes cultivation medium is improved, the consumption of miscellaneous wood resources is reduced, the mushroom-forest contradiction can be relieved, and the high-quality development of the lentinula edodes industry is promoted.

The invention relates to a method for construction of a water-saving biological protection system on the periphery of an oasis under flood irrigation condition. According to the method, tamarix chinensis, alhagi sparsifolia, karelinia caspia and certain ephemeral plants such as halogeton or salsola collina which are originally distributed irregularly are restored and repaired to form a first protection zone; populus bolleana of tree category and big-leaf clover of forage category are planted in a cell block mode to form a second protection zone; an artificial biological isolation zone is set with fraxinus mandshurica planted in trenches and subject to furrow irrigation to form a third protection zone; and forests of black walnuts of tree category and medical herbs are planted with combination of trench planting and block planting to form a fourth protection zone. By adopting the method, the allocation of deep-rooted plants and shallow-rooted plants, the allocation of trees, shrubs and herbaceous plants, the allocation of sun plants and shade-tolerant plants and the allocation of protective plants and economic plants are demonstrated in a centralized way in the biological protection system, effective utilization of water by plants can be realized, and normal rapid growth of plants can be ensured.

The invention relates to the technical filed of grafting and provides a method for grafting fraxinus mandshurica on fraxinus chinensis. The method is implemented according to the following steps: step 1, cultivation of fraxinus chinensis rootstock seedlings: one-year-old fraxinus chinensis rootstock seedlings are planted in a field in spring, and 2,800-2,850 seedlings are planted per mu; step 2, grafting of the fraxinus mandshurica on the fraxinus chinensis: the fraxinus mandshurica is grafted on the fraxinus chinensis with a bud grafting method, on April 15 or 20 in the spring of next year, buds of fraxinus mandshurica scions of one-year-old branches with xylem and full bud eyes are cut and grafted on the positions, 5-8 cm away from the ground, of the fraxinus chinensis rootstock seedlings, a bandage is used for binding during grafting, buds of the fraxinus mandshurica scions are exposed, main stems above ports of the fraxinus mandshurica scions are cut off after grafting, and cut edges are sealed with wax; step 3, management after grafting: normal management is performed after grafting. Compared with the conventional grafting technology, the method for grafting the fraxinus mandshurica on the fraxinus chinensis is high in survival rate, economical and practical and can meet afforestation demands.

The invention discloses a method for rapid propagation of embryogenic cells of fraxinus mandshurica. The method comprises the following steps of selecting calluses of fraxinus mandshurica, wherein thecalluses can be originated from various explants such as roots, stems, leaves, seeds and embryos, and inoculating the calluses to an F4 solid medium to cultivate 1-2 subcultures so as to obtain embryogenic calluses of fraxinus mandshurica; and inoculating friable embryogenic calluses to an F4 liquid medium to cultivate 2-3 subcultures so as to obtain single cells and small cell groups of fraxinusmandshurica. The method has the advantages that the F4 media are selected; besides conventional WPM basic media, 30g / L saccharose is selected to be combined with four hormones: BA, NAA, IBA and TDZ;cells on the media grow vigorously, and no death is caused by browning as long as the subculturing takes place in the growth cycle. The method is established to lay a foundation for scaled productionof cells of fraxinus mandshurica and researches on secondary metabolites.

The invention provides a one-step method rooting and transplanting technology for tissue culture seedlings of Fraxinus mandshurica. Semi-lignified adventitious individual plants obtained by tissue culture are cultured for 30 d in a strong seedling medium (WPM + 2.0 mg / L 6-BA + 20 g / L sucrose + 7 g / L agar), and then directly planted in a seedling culture bag containing a rooting medium (WPM + 1.4 mg / L IBA+0.7 mg / L NAA, without sucrose and agar) matrix (the ratio of turfy soil to vermiculite is 3:1), then the seedling culture bag is closed with a plastic pull bag, the plastic pull bag is opened7 d after culture under specific light, temperature and humidity conditions, the plastic pull bag is removed after 14 d, after 30 days of constant-temperature and constant-humidity culture, adventitious branches take root and grow out new leaves, and the survival rate is 63.33%. The technology simplifies rooting and transplanting into one step, is one of key technologies for rapid propagation of tissue culture seedlings of the Fraxinus mandshurica, saves the time and cost, and lays a solid foundation for the large-scale production of rapid propagation of the Fraxinus mandshurica.

The invention discloses an upgraded wooden desk which is characterized in that the thickness of a panel (1) is 22mm, the thickness of side plates (2), a shelf (3) and a front plate (4) is 22mm and a banded edge (5) is a solid wood banded edge. Plate materials are superior fraxinus mandshurica clamping plates which undergo vapour degreasing and drying and professional mechanical edge banding with hot melt adhesives which are imported from Germany. The panel is coated with environment-friendly superior polyester paint and the color of the panel is the original color of fraxinus mandshurica. The whole panel is of a plate type structure, moderate in gloss, neat, smooth, pleasant in appearance and firm. A coating film is free of obvious wooden hole sinking.

The invention discloses a method for reinforcing a woody composite honeycomb panel by glass fiber cloth and relates to the method for enhancing mechanical properties of the woody composite honeycomb panel through adding the glass fiber cloth between a veneering layer of a woody veneer and a substrate layer of a honeycomb panel. The method is used for overcoming the disadvantages such as coarse and loose structure and low strength of the current honeycomb panels and relieving the present situation that the wood supply is tense. The glass fiber cloth reinforced woody honeycomb panel consists of a Fraxinus mandshurica veneer 1, white glue, of which the use level is 170g / m<2> to 200g / m<2> 2, the glass fiber cloth 3, epoxy resin 4, a honeycomb panel substrate 5, white glue, of which the use level is 200g / m<2> to 240g / m<2> 6 and a poplar veneer 7. The method is characterized by comprising the following steps: (1) reinforcing the honeycomb panel by adopting the glass fiber cloth; (2) carrying out first-time cold pressing; (3) sticking the woody veneer onto the glass fiber cloth; and (4) carrying out second-time cold pressing. According to the method, the flexural strength of the glass fiber cloth reinforced woody honeycomb panel is improved by 5.5 to 6.5 times, and the flexural elastic modulus is increased by 0.5 to 1.5 times. The method has the advantages that the strength of the honeycomb panel is improved, the range of use of the honeycomb panel is enlarged, and the situation that wood resources are lack and are increasingly outstanding in supply and demand contradiction is relieved.

The invention discloses a high-viscosity high-temperature-resistant steel bar embedding adhesive, and belongs to the technical field of chemical raw material preparation. The adhesive is formed by soaking refined fraxinus mandshurica in a zinc chloride solution and stirring, and carrying out sulfhydrylation modification; the hydrogen-bond interaction in the components of the modified wood pulp isconveniently improved; the bonding area between the fibers and between the fibers and the organic resin is increased, thus increasing density, and improving the bonding effect stably; glycerol ester substances are used for toughening and modifying phenolic epoxy acrylate resin components, thus improving flexibility of resin components, reducing the viscosity to a certain extent, and improving thestability of the prepared steel bar embedding adhesive; the confusion degree of a cured product is enhanced by modifying resin components, the thermodynamic entropy of the cured product is increased,the crystallinity of the cured product is reduced, and the application effect of the steel bar embedding adhesive is improved on the basis that the cured product meets the mechanical property of the steel bar embedding adhesive. The invention solves the problems of poor high-temperature resistance and low bonding strength of the current common steel bar embedding adhesive.

The invention relates to the field of fraxinus mandshurica wood and particularly relates to fraxinus mandshurica wood surface antiquing equipment applied to antique buildings. The technical problem of the invention is to provide fraxinus mandshurica wood surface antiquing equipment applied to antique buildings. According to the technical implementation scheme, the fraxinus mandshurica wood surface antiquing equipment applied to the antique buildings comprises a bottom frame, a polishing assembly, a perforating assembly, an oil brushing assembly, a control screen, a first electric sliding rail and a first sliding plate, wherein the perforating assembly is connected with the oil brushing assembly; and the first electric sliding rail is in sliding connection with the first sliding plate. When the fraxinus mandshurica wood surface antiquing equipment is used, random positions of the surfaces of fraxinus mandshurica boards are automatically polished; the degrees of polishing in each time are different, so that irregular abrasion surfaces are formed on the surfaces of the boards; the boards are automatically drilled; the diameters of hole openings are smaller than the inner diameters of the holes; the wormhole effects are formed on the boards; the surfaces of the boards automatically generate dirty and old effects; and meanwhile, the paint flowing into the small holes is removed completely.

The invention relates to a fraxinus mandshurica U6 gene promoter proFmU6.7 as well as cloning and application thereof. According to the invention, the fraxinus mandshurica RNA polymerase III type promoter, namely the fraxinus mandshurica endogenous U6 gene promoter proFmU6.7, is successfully cloned for the first time, an activity detection carrier of the fraxinus mandshurica U6 gene promoter is successfully constructed, and through instantaneous transformation of fraxinus mandshurica seedlings and GUS dyeing verification, the promoter is proved to have efficient transcriptional activity. Experiments prove that the fraxinus mandshurica U6 gene truncated promoter proFmU6.7.4 has starting activity and is successfully applied to a CRISPR / Cas9 (clustered regularly interspaced short palindromic repeats / CRISPR associated protein 9) system. According to cloning of the fraxinus mandshurica U6 gene promoter proFmU6.7 and expression analysis of promoter activity, an efficient promoter sequence is provided for research on transformation of fraxinus mandshurica and related plants, and efficient and accurate germplasm innovation and variety genetic improvement of fraxinus mandshurica can be achieved.

The invention provides a method for realizing adventitious bud regeneration and propagation of the hypocotyl and the stem segment of Fraxinus mandshurica Rupr. through a callus approach by a key link,i.e., light green semi-dense callus induction. When a mature embryo is cultured to cotyledon expansion (21 d), the hypocotyl is cut off and is inoculated in an a20 culture medium; the stem segment iscut from an aseptic seedling and is inoculated in a c12 culture medium, through dark / light alternant culture, a light green semi-dense callus is obtained, wherein the inductivity of the hypocotyl andthe inductivity of the stem segment are independently 88.69% and 99.15%; and an adventitious bud is formed on a callus block semi-dense gap, wherein the inductivities are independently 10.52% and 33.33%. According to the method disclosed by the invention, a bottleneck link that the Fraxinus mandshurica Rupr. difficultly realizes adventitious bud differentiation through the callus approach is eliminated, and through efficient callus induction and effective adventitious bud regeneration, a solid foundation is laid for the rapid propagation technology of the Fraxinus mandshurica Rupr..

The invention relates to a method for construction of a water-saving biological protection system on the periphery of an oasis under flood irrigation condition. According to the method, tamarix chinensis, alhagi sparsifolia, karelinia caspia and certain ephemeral plants such as halogeton or salsola collina which are originally distributed irregularly are restored and repaired to form a first protection zone; populus bolleana of tree category and big-leaf clover of forage category are planted in a cell block mode to form a second protection zone; an artificial biological isolation zone is set with fraxinus mandshurica planted in trenches and subject to furrow irrigation to form a third protection zone; and forests of black walnuts of tree category and medical herbs are planted with combination of trench planting and block planting to form a fourth protection zone. By adopting the method, the allocation of deep-rooted plants and shallow-rooted plants, the allocation of trees, shrubs and herbaceous plants, the allocation of sun plants and shade-tolerant plants and the allocation of protective plants and economic plants are demonstrated in a centralized way in the biological protection system, effective utilization of water by plants can be realized, and normal rapid growth of plants can be ensured.

The present invention provides a kind of technique of the integration of rooting and transplanting of Mandshurica mandshurica tissue culture seedlings. First, the semi-lignified adventitious shoots obtained by tissue culture are placed in strong seedling medium (WPM+2.0mg / L 6-BA+ 20g / L sucrose+7g / L agar) after culturing for 30d, directly planted into the matrix (peat soil: vermiculite) containing rooting medium (WPM+1.4mg / L IBA+0.7mg / L NAA, without sucrose and agar) =3:1) in a seedling-growing bag, then sealed with a plastic pull bag, cultivated under specific light, temperature and humidity conditions, opened the bag mouth after 7 days, removed the bag after 14 days, and after 30 days of constant temperature and humidity cultivation, adventitious branches took root and grew out. The survival rate of new leaves is 63.33%. The invention simplifies rooting and transplanting into one step, which is one of the key technologies for rapid propagation of Mandshurica mandshurica seedlings, saves time and cost, and provides a large-scale method for the rapid propagation of Mandshurica mandshurica. Production has laid a solid foundation.

The invention discloses a preparation method of a wood fiber air filter core, and relates to the technical field of filter cores. The preparation method of the wood fiber air filter core comprises thefollowing steps: (1) treating a fraxinus mandshurica fiber raw material by adopting a treating fluid; (2) extracting the treated slurry; (3) grinding by adopting flaky sericite. The wood fiber air filter core prepared by the invention has good filtering efficiency and long service life.

The invention discloses a fraxinus mandshurica wood surface antique finishing process for an antique building. The process comprises the steps: weighing the following raw materials in parts by weight:35-55 parts of an open paint, 50-70 parts of a modified liquid, 15-20 parts of gelatin, 2-3 parts of citric acid, 2.5-4.0 parts of sodium acetate, 15-20 parts of triethanolamine, 2.0-2.2 parts of calcium chloride and 200-250 parts of deionized water. When the prepared open paint is sprayed on the surface of fraxinus mandshurica; the coating has excellent adhesive force and gloss retention performance, and high gloss, and a film can be formed once; therefore, the coating can be better compounded with fraxinus mandshurica wood, the spraying requirements under various conditions can be met, andthe technical problems that existing nitro-lacquer is high in viscosity, only used for spraying and incapable of forming a film at a time, when the nitro-lacquer is sprayed to the surface of fraxinusmandshurica wood, the glossiness is low, the film cannot be formed at a time, and the bonding capacity with the fraxinus mandshurica wood is poor are solved.

The invention relates to a smearing machine, in particular to a waterproof paint smearing machine for a yellow fraxinus mandshurica ecological board. The technical aim is to provide the waterproof paint smearing machine for the yellow fraxinus mandshurica ecological board, wherein the machine can realize automatic smearing and is time-saving and labor-saving. According to the technical scheme, the waterproof paint smearing machine for the yellow fraxinus mandshurica ecological board comprises a bottom plate, mounting columns, first springs, a smearing device, a lifting mechanism and a placing mechanism, the mounting columns are arranged at the inner side of the bottom plate, the smearing device is slidably connected between the mounting columns, and the first springs are arranged between the two sides of the bottom of the smearing device and the bottom plate; and the lifting mechanism is connected between the bottom plate and the smearing device, and the placing mechanism is placed between the inner sides of the bottom plate. Through cooperation of the lifting mechanism and the placing mechanism, the painting effect of automatic painting on the ecological board can be achieved, manual operation is not needed, and time and labor are saved.

The invention provides a fraxinus mandshurica bending processing and cooking device which comprises a base, a heater, a first shell, a sealing cover plate, a roller A and a piston sleeve, the heater is embedded in one end of the inner side of the base, the first shell is fixedly installed at the top of the base, and the sealing cover plate is hinged to one end of the top of the first shell; rolling wheels A are rotationally arranged at one end of the outer side of the first shell, and there are two rolling wheels. The position, needing to be bent, of fraxinus mandshurica wood which is steamed and softened in the first shell is subjected to bending treatment, after bending treatment, a worker takes out the fraxinus mandshurica wood subjected to bending treatment, at the moment, when the second telescopic rod needs to be moved back to the original position, a plurality of teeth at one end of the bottom of the second telescopic rod touch teeth on the outer side of the ratchet gear, the teeth rotate on the outer side of the torsional spring and are collected into the groove in one end of the bottom of the second telescopic rod, the second telescopic rod returns to the original position, and the more convenient effect is achieved.

The invention relates to a fraxinus mandshurica stumping strong seedling cultivation method. The fraxinus mandshurica stumping strong seedling cultivation method comprises the steps that nursery stocks planted for two years or ridge cultured for 1-2 years in a fraxinus mandshurica seeding bed in a nursery garden are selected, after winter snow is thoroughly melted in spring, trunks of the fraxinus mandshurica nursery stocks are sheared off at the parts 4-5 cm away from the ground, hand shears good in shearing mouth meshing or specially-made nippers are used, and the using mode of inclined shearing is adopted. Irrigation is carried out immediately after stumping, and the influence of evaporation on the stumped nursery stocks is reduced. After stumping is carried out for one month, bud picking processing is carried out, axillary buds and root suckers germinating between the lower portion of the stump and the ground are sheared off through the hand shears so that nutrition can be concentrated, and the trunks of the nursery stocks are maintained throughly straight. Meanwhile, fertilizer and water management is enhanced, and weeds are removed in time.

The invention relates to a method for quickly breaking dormant buds of fraxinus mandshurica tissue culture seedlings and successfully achieving in-vitro propagation. According to the method, fraxinusmandshurica tissue culture seedlings with dormant bud points or stems with dormant buds are used as materials, WPM is used as a basic culture medium, TDZ with different concentrations is added, two illumination conditions (light and dark) and two culture manners (solids and liquid) are adopted, the temperature is 25 DEG C, culture is carried out within 7 d, the dormant state of the dormant buds offraxinus mandshurica is relieved, the dormant buds start to germinate and are cultured for 24 d, the germination rate of solid culture reaches 57.14% at most, the germination rate of liquid culture reaches 100% at most, in strong seedling and multiplication culture, culture is carried out for 30 d, the survival rate of an A6 culture medium is 100%, the average seedling length is 1.68 cm, the survival rate of a Z1 culture medium is 75%, and the average seedling height is 2.65 cm. According to the method, the dormant buds of fraxinus mandshurica can be quickly broken to achieve in-vitro propagation, the method can be cyclically used and is a sustainable circulating culture production method, the method is single in hormone, low in concentration and simple in process, the method has the characteristics of controllability and low cost, the method is suitable for different production conditions, and technical support is provided for large-scale propagation of fraxinus mandshurica seedlings.