46results about How to "Meet the needs of domestic and foreign markets" patented technology

The invention discloses a reinforced ceramic of color glazed magnesium, which is characterized by the following: adopting silica as base; covering a layer of glazed color on the surface of magnesium ceramic with lead stripping quantity not more than 0.16mg / L and cadmium stripping quantity not more than 0.001mg / L; improving mechanic strength and glaze hardness.

The invention provides a preparation method for 4-methyl-5-(2-ethoxyl)-thiazole. The 4-methyl-5-(2-ethoxyl)-thiazole is synthesized from 2-acetylbutyrolactone serving as a raw material through amination, chloration, condensation and oxidative reaction. The preparation method comprises the following steps of: introducing chlorine into 2-acetylbutyrolactone and hydrolyzing to obtain 3-acetyl chloride propyl alcohol; introducing ammonia gas into carbon bisulfide to obtain ammonium salt; oxidizing a condensation product of 3-acetyl chloride propyl alcohol and the ammonium salt with hydrogen peroxide or oxygen to obtain a product; extracting with dichloromethane; removing the dichloromethane; then performing reduced pressure distillation; and collecting fraction at 120-127 DEG C under the pressure of 395-400 Pa. The synthesis method has the advantages of readily available raw material, low production cost, simple process, mild reaction conditions and yield of reaching up to 82 percent.

The invention relates to a novel peacock green pheasant breeding method. The novel peacock green pheasant breeding method comprises the following steps: selecting a local pheasant as male parent and an American pheasant as a female parent for natural mating; hatching laid eggs to obtain a second-generation hybrid population; selecting cocks and hens with a relatively good plumage color from the second-generation hybrid population, as a base population; establishing a family of more than 30 chickens; in each family, naturally mating a second-generation hybrid cock with 5-10 second-generation hybrid hens; hatching laid eggs to obtain a third-generation hybrid population; performing cross breeding for more than 2 generations continuously; and eventually obtaining a new variety with a black hemp female body and a male parent with the similarity of the plumage color to the green peacock of more than 90%, wherein in the breeding process of each step, a pedigree record is establigreenhouse to avoid mutual mixture of different pedigrees. In bred green peacock pheasants, male bodies have highly consistent shapes and a green peacock plumage color, and the female bodies have a black hemp plumage color; the body weight is about 1000 g; the disease resistance is strong; the feed conversion and the egg production rate are high; and the bred green peacock pheasants are tender and delicious in meat and high in nutritional value.

The invention relates to a monocrystal silicon wafer polishing process capable of obtaining a high polishing rate. In a coarse polishing process, an American Dupont SR330 coarse polishing solution is adopted, and diluted by pure water according to the ratio of 1:20 to 1:40; the flow is 23.5-24.5 L / min; a Rohm and Haas SUBA600 polishing pad is adopted; and the coarse polishing process comprises the following three steps: 1, using a coarse polishing solution to polish for 10 s, the rotating speed of a big disk being 23-27 rpm, the rotating speed of a central guide wheel being 48-52 rpm, and the pressure being 47-53 kPa; 2, using a coarse polishing solution to polish for 7-13 min, the rotating speed of the big disk being 38-42 rpm, the rotating speed of the central guide wheel being 78-82 rpm, and the pressure being 100-200 kPa; and 3, using pure water to polish for 40 s, the rotating speed of the big disk being 23+ / -27 rpm, the rotating speed of the central guide wheel being 48-52 rpm, and the pressure being 47-53 kPa. The polished section processed by the process has the removal rate up to 1.83-2.09 micron / min, which is far higher than the average level of 1 micron / min in the industry, and meanwhile, and has the pass percent up to more than 90% stably. The improvement of the productivity of the polished section can reduce the fixed cost, thereby meeting the requirements of domestic and foreign markets.

The invention discloses an environmentally-friendly rubber oil and a preparation method thereof. The method comprises the following steps: 1, extracting inferior cycloalkyl heavy wax oil in a propane deasphalting extraction tower with propane to obtain a refined liquid at the top of the propane deasphalting extraction tower, and recovering a solvent to obtain refined heavy wax oil; and 2, carrying out solvent refinement of the refined heavy wax oil in an extraction tower to obtain an extract liquid at the bottom of the extraction tower and a refined liquid at the top of the extraction tower, recovering the solvent of the extract liquid to obtain extract oil, and recovering the solvent of the refined liquid to obtain the environmentally-friendly rubber oil. The method utilizing the inferior cycloalkyl heavy wax oil to prepare the environmentally-friendly rubber oil widens the raw material source of the environmentally-friendly rubber oil, satisfies the demands of the markets at home and abroad, and also greatly improves the added values of the inferior cycloalkyl heavy wax oil. The method has the advantages of small solvent ratio in the solvent refining process, low energy consumption and solvent consumption, and high target product yield.

The invention discloses a preparation process of a ME20M magnesium alloy flat ingot. The preparation process comprises the flow steps of melting by a melting furnace-primary analysis and test-refiningby a refining furnace-secondary analysis and test-standing and semicontinuous casting; a crystallizer is reasonably designed; the temperature and the flowing speed of magnesium alloy liquid guided inthe crystallizer are accurately mastered; such phenomenon as easy fire leakage in the casting process of the ME20M magnesium alloy flat ingot and influence on the product quality by weak fluidity ofthe magnesium alloy liquid in the crystallizer and easy generation of large cold shut is overcome; fifth solvent can prevent oxide inclusions in the smelting process of a ME20M magnesium alloy; the utilization rate of metal cerium is increased; a protective film isolated from air can be formed on the surface of magnesium alloy liquid; and self preparation of a refining agent achieves the followingpurposes: (1) the effects of the fifth solvent are achieved; and (2) impurities in the magnesium alloy liquid are fully precipitated to guarantee that the cast magnesium alloy flat ingot has no defects of inclusions and air holes.

The invention relates to a method for preparing fractionation rubberizing and color separating flocking and special equipment thereof. The preparation method of the invention is characterized in that: (1) a plurality of rubberizing and flocking areas and times are divided according to a plurality of different color blocks of product; (2) after the counterpoint rubberizing and color separating flocking are carried out each time, parching and air cooling are carried out so as to finish one preparation unit of one color; (3) a plurality of preparation units are arranged in sequence according to the number of the different color blocks; (4) base cloth to be printed is carried out counterpoint rubberizing, color separating flocking, parching and air cooling from the first color sequentially in corresponding position of each preparation unit respectively; (5) the preparation unit of the last color is only carried out the counterpoint rubberizing; the flocking, parching and air cooling are carried out by a matched conventional flocking preparation line. The special equipment of the invention comprises a transmission mechanism for the base cloth to be printed, which is characterized in that: a plurality of groups of fractionation rubberizing, flocking, parching and air cooling equipment are arranged on the transmission mechanism in sequence.

The invention discloses a preparation method of a thermoplastic polyurethane elastomer for a reactive hot melt adhesive. The preparation method comprises the following steps of: adding 50-80 parts of polyester polyol and 5-10 parts of dihydroxy-terminated polybutadiene into a reaction kettle, controlling the temperature to be 115-120 DEG C and the vacuum degree to be less than or equal to 0.095 MPa, and carrying out vacuum dehydration for 2-3 hours; after dehydration treatment, cooling the mixture obtained in the previous step to 78-82 DEG C, adding 10-40 parts of polyisocyanate, 0-0.5 parts of a catalyst, 0-1.0 part of an antioxidant and 0-1.0 part of an anti-yellowing agent into the reaction kettle, stirring at the speed of 80-150 r / min, uniformly mixing, and stirring at the temperature of 80-85 DEG C, the vacuum degree of less than or equal to 0.095 MPa and the speed of 80-150 r / min for reaction for 3 hours; obtaining a thermoplastic polyurethane elastomer for a reactive hot melt adhesive; and packaging and sealing the thermoplastic polyurethane elastomer for the reactive hot melt adhesive in the previous step under the protection of nitrogen to obtain a finished product. The thermoplastic polyurethane elastomer prepared by the invention can improve the initial adhesion strength of a reactive polyurethane hot melt adhesive, increase the melt viscosity and improve the cohesion, has excellent compatibility, and can meet the market requirements at home and abroad.

The invention provides a pollen fruit milk tea, which is characterized in that: the mixture is composed of bee pollen or / and pollen 20-40wt%, fruit powder 10-40wt%, vegetable powder 1-10wt%, whole milk powder 10-39wt%, and tea polyphenol 0.5-1wt% and / or tea powder 5-30wt%; the preparation method includes: desiccating, griding and mixing ingredients, griding the mixture at 0-40 DEG C into powder whose diameter is less than 5 micron by supersonic airstream muller, and other processes; furthermore making the product into extract, liquid product. The product not only can be absorbed by human easily and can supply necessary nutrition that people need for metabolism, but also has no bitter, smelly, acerbity flavor, the taste is comfortable and soft, and is practical.

The invention relates to a monocrystal silicon wafer polishing process capable of obtaining a high polishing rate. In a coarse polishing process, an American Dupont SR330 coarse polishing solution is adopted, and diluted by pure water according to the ratio of 1:20 to 1:40; the flow is 23.5-24.5 L / min; a Rohm and Haas SUBA600 polishing pad is adopted; and the coarse polishing process comprises the following three steps: 1, using a coarse polishing solution to polish for 10 s, the rotating speed of a big disk being 23-27 rpm, the rotating speed of a central guide wheel being 48-52 rpm, and the pressure being 47-53 kPa; 2, using a coarse polishing solution to polish for 7-13 min, the rotating speed of the big disk being 38-42 rpm, the rotating speed of the central guide wheel being 78-82 rpm, and the pressure being 100-200 kPa; and 3, using pure water to polish for 40 s, the rotating speed of the big disk being 23+ / -27 rpm, the rotating speed of the central guide wheel being 48-52 rpm, and the pressure being 47-53 kPa. The polished section processed by the process has the removal rate up to 1.83-2.09 micron / min, which is far higher than the average level of 1 micron / min in the industry, and meanwhile, and has the pass percent up to more than 90% stably. The improvement of the productivity of the polished section can reduce the fixed cost, thereby meeting the requirements of domestic and foreign markets.

The invention relates to an industrial synthesis method of TMBP. The method comprises the following steps of 1, dissolving 2,6-xylenol, sodium dodecyl sulfate and borax with isopropanol to obtain a preliminary solution for use; 2, adding a certain amount of deionized water in a reaction kettle, then adding the preliminary solution, after heating the mixture to a certain temperature, quickly addinga catalyst, then keeping the reaction kettle hermetic, conducting stirring, introducing oxygen, and continuously carrying out a reaction under certain pressure for a period of time; 3, after the reaction is finished, relieving pressure to normal pressure, and then conducting cooling, filtering, washing, re-crystallization and drying to obtain a white needle crystal product, namely the TMBP, wherein a reducing agent is added in the re-crystallization process. According to the industrial synthesis method, the process condition of pressurizing is innovatively adopted, the side reactions under the pressurizing condition are greatly reduced under the synergistic effect of the process condition of pressurizing and selection of types of raw materials and adjustment of the process condition, andthrough the further utilization of a reduction means, double increase of the yield (larger than 85% as a whole) and purity (larger than 99.0%) of the TMBP is achieved.

The invention relates to a phosphorus-containing nitrogen-containing halogen-free flame-retardation epoxy resin glue, a prepreg and a high temperature-resistant halogen-free flame-retardation insulation structural member. The epoxy resin glue comprises the following raw materials in parts by weight: 40-60 parts of phosphorus-containing halogen-free epoxy resin; 4.5-20 parts of triallyl isocyanurate, 6-22.5 parts of 4,4'-bimaleimide diphenylmethane, 5-10.8 parts of a curing agent, 0.5-1.5 parts of a curing accelerator, 0.5-1 part of a colouring agent, and 10-25 parts of a solvent. The prepreg and the insulation structural member prepared by the epoxy resin glue have high temperature resistance (H grade), the flame resistance rate can reach an UL94 V-0 grade flame-retardation standard, the halogen total content is less than 500 PPM, the prepreg and the insulation structural member have excellent electrical performance, mechanical property, bonding property and heat resistance. The insulation structural member can be used for increasing the flame-retardation performance of a H-grade laminated board, increases the usage reliability, and can satisfy requirement of market at home and abroad.

The invention relates to a large-scale automated cooling chemical apparatus for production of chemical raw materials. The large-scale automated cooling chemical apparatus comprises a fixed chassis, a cooling tower, an air-cooled refrigerating machine and a refrigerator storage chamber. A compression-type refrigerating unit is disposed above the fixed chassis. The cooling tower is arranged above the compression-type refrigerating unit. The inside of the cooling tower is provided with a composite condenser. An evaporator is arranged above the composite condenser. A transfer station is arranged above a manual detection table. A shape molding device is arranged above the transfer table. A sterilizing chamber is connected with a wrapping chamber. The air-cooled refrigerating machine is connected with an expansion valve. A thermal insulating board is disposed above the expansion valve. The refrigerator storage room is connected with a temperature controller. A dryer is arranged below the temperature controller. The invention has the beneficial effects of being capable of an increase in the production batch and automated operation, being capable of improving the production efficiency and saving manpower and financial resources, and greatly improving the production of chemical raw materials to meet the needs of domestic and foreign markets.

The invention discloses a method for preparing mulberry brandy, which comprises the following steps of: inspecting, accepting, selecting, pulverizing and pulping the raw material, sterilizing the mulberry pulp at the temperature 110-115 DEG C for 3-6 s, fermenting the mulberry pulp, adjusting the temperature of the mulberry pulp to 18-25 DEG C, adding active dry yeast, and starting temperature controlled fermentation, wherein the mass ratio of the active dry yeast to the mulberry pulp is 1-1.2:10000, the fermentation time is 7-10 days, and the fermentation temperature is 18-25 DEG C; and completing fermentation when the content of residual sugar is less than or equal to 5.0 g / L, transferring the fermentation liquor into a storage tank, waiting for distillation, distilling the fermentationliquor in two steps of rough distillation and fine distillation, storing, brewing, blending and adjusting raw brandy, and storing, brewing and filtering semi-finished brandy to obtain the mulberry brandy. By using the preparation method, the raw material of mulberries can be fully utilized, the mulberry brandy has the advantages of abundant nutrient components and high product added value, rancidity is not easy to occur, and the disposal of pollutants can be effectively lowered so as to protect environmental sanitation.

The invention discloses a wear-resisting reinforced polyamide / polyoxymethylene alloy. The weight percentage of raw materials is as follows: 30%-60% of polyamide, 5%-25% of polyoxymethylene, 1%-20% of compatibilizer, compound Heat stabilizer 1.0%-3.0%, lubricant 0.5%-1.0% and reinforcing component 10%-30%. The alloy has excellent wear-resistant self-lubrication and mechanical properties, good dimensional stability, easy injection molding, adjustable color, and can well meet the needs of domestic and foreign markets. The preparation method has simple operation and is suitable for industrialized production.

The invention relates to a production method of a water soluble gingko powder, which belongs to the gingko processing technical field. The invention takes fresh gingko as the raw materials, gingko seeds are crushed with water after being shelled, the gingko starch and the destarch gingko solution are respectively obtained through precipitation separation, the gingko starch obtains the gingko starch hydrolyzed solution through the enzymolysis of amylase and pullulanase together, and the gingko starch hydrolyzed solution and the destarch gingko solution adopt homogenization treatment and spray drying after being mixed, so as to produce water soluble gingko powder of the residual of non-cyanide. The water soluble gingko powder holds the gingko fragrance and the nutrition component, thereby the invention has great significance to the comprehensive utilization of gingko resources.