64results about How to "Rigorous workmanship" patented technology

The present invention relates to a high intensity magnesium alloy and the preparation method. Magnesium, aluminum, zinc and neodymium are adopted as raw materials, which are melted in a melting furnace, under the protection of the mixed gases, and are melted down at the temperature of 720 plus or minus 10 degrees Celsius system, magnesium- neodymium alloy is added at the temperature of 780 plus or minus 10 degrees Celsius system, refined and the heat is preserved at the temperature of 740 plus or minus 10 degrees Celsius system and then the magnesium-aluminum-zinc-neodymium melt is obtained. When the temperature is lowered to 680-700 degrees Celsius system, the magnesium-aluminum-zinc-neodymium melt is discharged and cut into shapes after being moulded and cooled and then made into high intensity aluminum-magnesium alloy ingots after an 8-channel equal channel rotor angle pinch. The raw material mixture ratio of magnesium, aluminum, zinc and neodymium is 82 to 15 to 2 to 1 and aluminum makes up 15 percent. The aluminum material is abundant in resource, low in price and more economical and the lanthanon neodymium can change the metallurgical structure and mechanical property. The method has a short process flow and a slight pollution to the environment. The tensile strength, yield strength and elongation of the magnesium alloy ingots can be increased by 147.4 percent, 210.6 percent and 448.3 percent respectively. The metallurgical structure is compact and even and the average crystal grain size is less than or equal to 2 micrometers.

The invention relates to a preparation method of a high-intensity magnesium alloy soldering wire, which adopts alloy agent magnesium, aluminum, zinc, yttrium, magnesium-manganese intermediate alloy and aluminium-silicon intermediate alloy as raw materials. In a vertical melting furnace, through being melted at 700 DEG C, rare-earth element yttrium is added at 800 DEG C and is refined at 760 DEG C, with a covering agent and a refine agent being added, through constant temperature, thermal retardation and stewing, then magnesium alloy molten liquid is made; through casting a mould, magnesium alloy ingot is made; through cooling, cutting and forming, and then thermoplastic extruding, in the end, the high-intensity magnesium alloy soldering wire is made; the yttrium element, the magnesium-manganese intermediate alloy and aluminium-silicon intermediate alloy can greatly improve the intensity, the malleability and the solderability of the magnesium alloy soldering wire; the preparation technology is refined, the mixture ratio is reasonable, the environment pollution does not exist; the outcome of a magnesium alloy soldering wire metallic phase has uniform structure and good compactability, the average grain size is 25microns, the tensile strength can reach 330MPa, the elongation percentage can reach 25 percent and can be improved by 18 to 28 percent compared with the prior art, and the solderability is good.

The invention relates to a method for preparing a molecular imprinted polymer on the surface of carbon microspheres, which comprises the following steps of: preparing the carbon microspheres by using acetylene gas; and preparing imprinted carbon microspheres on a three-neck flask, a water bath and an electrothermal stirring vessel, namely performing oxidation treatment on the carbon microspheres and then performing surface modification on the oxidized carbon microspheres to prepare the imprinted carbon microspheres and form irregular hole prints on the surface of the carbon microspheres. The preparation method has the advantages of advanced and reasonable process, short process flow, less environmental pollution, attractive appearance of a product, high purity of 99 percent and high product yield of 91 percent; the imprinted carbon microspheres are black and round particles with the particle diameter of 100 to 200nm and can be matched with various chemical substances; the method is an ideal method for preparing the imprinted carbon microspheres; and the product can be applied to the fields of pharmacy and various industries.

The invention relates to a process for manufacturing a composite floor, in particular to a process for manufacturing a multi-layer solid wood composite floor. The process comprises twelve procedures of selecting a log, rotatably cutting and drying the log, sorting a solid wood core board, hot pressing and gluing the core board, fixing thickness and polishing a base material, sorting and preserving the base material, selecting solid wood skin, molding a floor blank, preserving the floor blank, cutting and slotting the floor, painting and drying for molding. The invention has strict process, good quality of the produced floor, smooth and flexible paint surface, no cracking, long service life and easy processing.

The invention relates to a preparation method of a chromium-aluminum-nitrogen film by closed field unbalanced magnetron sputtering, which comprises the following steps: a chromium-tungsten-manganese steel plate is taken as a basal body, chromium and aluminum as a target source of metal ion, nitrogen gas as reactant gas, and argon gas as ion bombardment gas and protection gas; in a vacuum sputtering furnace, in a closed magnetic field state, in the argon gas and at the temperature of 300 DEG C, the surface of the chromium-tungsten-manganese steel plate is sputtered with chromium ion, aluminum ion and nitrogen ion and the chromium-aluminum-nitrogen hard film is formed on the surface of the steel plate, and then the low temperature tempering and alloying solid solution are conducted, thus greatly improving mechanical property, hardness, intensity, abrasive resistance and erosion resistance of the surface of the chromium-tungsten-manganese steel plate. The mechanical property of the chromium-tungsten-manganese steel plate can be improved by 466% compared with that of hardened steel plates. The preparation method has short process flow, precise technique, accurate and detailed measurement values, the film with thickness of 4,600nm, and the alloy layer with good solid solution effect and being not easy to peel off, thus being the ideal treatment method for strengthening and hardening the surface of alloy tool steel.

The invention relates to a sand-containing colorful environment-friendly coating and a preparation method of the same. The coating is composed of a pigment component, a dispersion medium and varnish; the pigment component includes RO water, cellulose, a dispersant, pigments and fillers, a defoamer, a film forming additive, an emulsion, an anti-freeze agent, an inorganic protective glue solution, a pH regulator, a sterilizing agent, a first thickener, and natural colorful sands; the dispersion medium includes RO water, the film forming additive, a rheological agent, the emulsion, an organic protective glue solution, the defoamer and a coupling agent; and the varnish includes RO water, the emulsion, the pH regulator, the sterilizing agent, the defoamer, the film forming additive, the anti-freeze agent, and a second thickener. Compared with the prior art, the sand-containing colorful environment-friendly coating has good storage and construction stability, wherein a dried film of the coating is excellent in adhesion force and water resistant performance. The coating, when being used, has a good rough sense and has clear layer sense, thereby representing a texture effect of natural stone materials better.

The present invention relates to a porous imprinting carbon nano-sphere preparation method, which comprises adopting a glucose solution to carry out hydrothermal synthesis of carbon nano-spheres, and carrying out surface modification, sintering carbonization, and grafting modification on the porous carbon nano-spheres to finally prepare the porous imprinting carbon nano-spheres. The preparation method has characteristics of rigorous process, advancement, reasonability, and accurate and detailed data. The product has the following characteristics that: a morphology is good, the product is black round particles, a particle diameter is less than or equal to 180 nm, a porous imprinting effect is significant, the product can be matched with a plurality of chemical substances, product purity is good and achieves 99%, and a yield is high and achieves 91%. In addition, the preparation method is an ideal porous imprinting carbon nano-sphere preparation method.

The present invention discloses a sweet dried oyster with iodine-tea taste, which belongs to instant dried food ingredients and the making method. The main raw material of the present invention is fresh oyster, and the supplemental materials are slat, white sugar, malt sugar, honey, edible oil and so on. The product is made after the materials being treated, cooked, immersed, dried, fried, roasted (for dehydration), coated with instant black tea powder, baked, cooled, packed, disinfected with microwave and stored in case, and processed cold storage process or procedure. The produced instant dried oyster has original flavor and taste, and has taste of Chinese herbal preparation honey-peppery oil tea camellia. The present invention has oyster and Chinese herbal preparation, and so the dried oyster has the function of enhancing the male reproductive system, preventing male sexual function from decreasing and prostatic hypertrophy. The present invention also can protect heart and liver, benefit for gallbladder, adjust blood lipid, make the skin soft, improve appearance, and is good for mental and brain, and so on.

The invention relates to a flame-retardant Mg alloy doped with Gl and Sr and a preparation method thereof. The alloy is made from Mg, Al, Zn, and Mg-Mn intermediate alloy as raw materials, Al-Gl intermediate alloy and Al-Sr intermediate alloy as fire retardants and Al-Sr intermediate alloy as an agent for enhancing mechanical property of the alloy. The preparation method is carried out in a vertical smelting furnace, and comprises smelting at 710 plus or minus 5 DEG C, refining at 760 plus or minus 5 DEG C, standing, casting at 700 plus or minus 5 DEG C, adding smelting and refining agents, incubating at a constant temperature, standing to obtain a molten liquid of flame-retardant Mg alloy, casting in a die, cooling, cutting and shaping to obtain flame-retardant Mg alloy ingot. During the smelting process, the addition of Al-Gl intermediate alloy and Al-Sr intermediate alloy can efficiently prevent the combustion and oxidation of Mg alloy and simultaneously improve the mechanical property of Mg alloy. This method has the advantages of rigor process, reasonable formation, short process flow, less environmental pollution, and good compactness and uniformity of metallurgical structure of Mg alloy ingot product. The average crystal grain of the product is less than or equal to 90 micron, the tensile strength reaches 200 MPa, and the impact ductility reaches 15J/cm<2>.

The invention relates to a method for preparing a nano titanium dioxide heterogeneous composite membrane. In the invention, strict process flow is adopted, and precision and purity of chemical materials are controlled. The method comprises the following steps: cutting, grinding, cleaning and drying flat glass; preparing titanium dioxide seven-element mixed sol; performing spin coating on titanium dioxide inorganic membrane in a layered manner; and carrying out vacuum evaporation of metallic copper membrane layer and vacuum heat treatment to obtain the nano titanium dioxide heterogeneous composite membrane, wherein the thicknesses of inorganic titanium dioxide membrane layer are 100nm and 80nm, the thickness of metallic copper membrane layer is 60nm, and the thickness of the total membrane layer is 240nm. The product prepared by the invention has the advantages of advanced technology, reasonable and strict membrane structure, high purity, and good photochemical catalysis performance under the sun. The membrane purity is up to 99.5%. The method is an ideal method for preparing nano titanium dioxide heterogeneous composite membrane.

The invention discloses a composite galvanized army green steel pipe for refrigeration and a manufacturing method of the composite galvanized army green steel pipe. The composite galvanized army green steel pipe comprises a steel pipe positioned on the innermost layer and is characterized in that a zinc-iron alloy layer is arranged on the outer surface of the steel pipe; a pure zinc layer is arranged on the outer surface of the zinc-iron alloy layer; an army green passivation layer is arranged on the outer surface of the pure zinc layer; a first closing layer and a second closing layer are separately arranged outside the army green passivation layer; and a product is obtained by the steps of carrying out deoiling, thermal treatment, composite galvanization, preheating, burnishing, washing with water, colored passivation, drying, closing for two time and drying. The composite galvanized army green steel pipe has a good binding force; a passivation bonding force among layers is high and weather fastness of the passivation layer is high; a finished product of the steel pipe has excellent wear resistance; the composite galvanized army green steel pipe has the advantages of good bright line, smoothness, anti-tarnishing property, rigorous process and high stability of the finished product; and when a condenser and a dew removable tube are manufactured, a protective heat shrink tube does not need to be added, so the working procedure is simple.

The invention relates to a preparation method of imprinted carbon microspheres. The imprinted carbon microspheres are prepared by a three-neck flask, an ultrasonic dispersion instrument, a water bath tub, an electric heating stirring utensil and an ultraviolet light mercury lamp, and the preparation method comprises the following steps of: firstly performing oxidation treatment on the carbon microspheres, then performing surface modification and further grafting a polymer on the surfaces of the carbon microspheres to finally prepare the imprinted carbon microspheres, wherein irregular cavity imprints are formed on the surfaces of the carbon microspheres. The preparation method has the advantages of advanced and reasonable process, short process flow, low environmental pollution, good product morphology, high purity which can be up to 99% and high product yield which can be up to 93%, the imprinted carbon microspheres are black and circular particles, the diameter of the particles is 100-200nm, and the imprinted carbon microspheres can be matched with a variety of chemical substances, so that the preparation method is a very ideal method for preparing the imprinted carbon microspheres, and products can be applied to a variety of industrial fields, such as pharmacy, fine chemicals and the like.

Disclosed is a synthesis method of pyrazoline derivatives emitting olivine light, in which the pyrazoline derivative, 1-phenyl-3-[4-(N-phenyl-1-naphthylamine)ethylene]-5-[4-(N-phenyl-1-naphthylamine)phenyl]-2-pyrazoline brown-green crystals are finally prepared through three-times intermediates, by selecting material, preparing sollution, chemical combination reaction, heating, mixing, water-circulation condensation, ice water washing, argon protection, column chromatography purification, recrystallization purification, vacuum filtering, evaporation and drying, the products are grain diamond-shaped, the color coordinate is that x=0.3257, y=0.5452, the maximal emission wavelength of photoluminescence spectrum is 523 nm and the full width at half maximum is 96 nm. The products have high purity, pure color, excellent irradiance performance, high irradiance intensity and high lighteness, the products are also capable of improving the stability, reliability and life time of organic electroluminescent devices, being used in the fields of advance electronic display and irradiance illumination technology, the method of the invention is strictness and reasonable.

The invention discloses a high-power draught fan single pile sleeve cage assembly process. The high-power draught fan single pile sleeve cage assembly process comprises the steps that ring beam pairing, welding and trepanning are carried out, wherein cross-shaped center lines are marked, a circle center is fixed, the positions of an inner side plate and an outer side plate of a ring beam are marked, the positions of swallow tail buckles are determined, paired ring beams are folded and welded, lines are marked at the position of the cross-shaped center lines of the ring beams for labeling, and a hole penetrating a supporting pipe is formed; and an overall sleeve cage is folded, paired and welded, wherein a working table is adjusted, the cross-shaped center lines are marked, the circle center is fixed, the ring beams are placed, the position of the supporting pipe is corrected so as to be vertical to a working platform, the ring beams are subject to tack-welding at the supporting pipe position where labeling is made, and the supporting pipe and the lower surface of the ring beams are subject to spot welding fixing. The high-power draught fan single pile sleeve cage assembly process has the beneficial effects that disconnected and jumped type symmetrical welding is carried out, and welding deformation is reduced; and strictly according to the drawing requirement, the position accuracy of the eight swallow tail buckles is guaranteed to meet the requirement, and the sleeve cage marine installation risk is reduced.

The invention relates to a preparation method of a photonic crystal multilayer film. Aiming at application state of the photonic crystal to optical materials, an electrically conductive glass is used as a substrate, and titanium oxide and copper are used as films; TiO2 films and Cu films are sputtered on the substrate through magnetron sputtering; the TiO2 film and the Cu film alternatively arranged form a 14-layer multilayer film structure; then the multilayer film are treated with low temperature tempering to increase physical properties and mechanical properties of the multilayer film. Thepreparation method employs an advanced and rigorous technology with detailed and accurate technical parameters; the product has good quality, high purity and good optical performance; therefore, provided is an ideal preparation method of the photonic crystal multilayer film.

The invention relates to the technical field of construction material, in particular to a method for fabricating compound heat preservation stone and a dedicated die therefor. A layer of natural stone and a light heat preservation material glued into a whole with the natural stone are provided. The fabrication method comprises the following steps: carrying out polishing, glueing, setting of electric heat galvanized steel net in the dedicated die to pour light heat preservation layer size; pouring the light heat preservation layer size for the second time after the size is maintained and cured so as to obtain two-fold compound heat preservation stone; then splitting the natural stone into two halves, thus obtaining two compound heat preservation stone. The dedicated die of the invention features reasonable design, low comprehensive cost, textural quality and beautiful appearance, natural stone texture, stringent technological processes and high fabrication efficiency.

A Chinese medicine for reinforcing vital energy and vital function, promoting hematopoietic function and treating the oligocythemia and thrombocytopenia caused by radiotherapy is prepared from 5 Chinese-medicinal materials including human placenta, donkey-hide gelatin, cinammon bark, cuttlefish bone, etc.