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43results about How to "Strong filling" patented technology

Wear-resisting sand pump and casting method thereof

The invention discloses a method for casting a wear-resisting sand pump. In the wear-resisting sand pump, a pump impeller, a material inlet and a pump body are precisely cast by a vacuum lost mold; a shaft is connected with the pump impeller through an outer cone and an inner cone; and the outer cone and the inner cone are rectangular, prismatic or hexagonal and are fastened by screws. The precise casting method comprises the following process steps of: 1, partitioning a foam material to obtain main parts, and bonding by using an adhesion agent to obtain an integrated model of which the shape is consistent with the main shape of a casting; 2, coating a mica-based coating onto the outer surface of a foam model, and drying; 3, putting the dried foam model into a sand box, filling dry sand into the sand box, and performing three-dimensional oscillation compaction; 4, vacuumizing the sand box by using a vacuum system through negative pressure; 5, pouring molten metallic iron from the feeder head of the sand box to replace the position of a foam-molded model so as to obtain a corresponding main part of the sand pump; and 6, condensing. The wear-resisting sand pump has the characteristics of high casting quality, high surface precision, high rigidity, high wear-resisting property, environment friendliness and the like, and is sanitary, safe and reliable.
Owner:梁汉民

Semiconductor device forming method

ActiveCN104124137AReduce process difficulty and production costLow costSemiconductor/solid-state device manufacturingEngineeringMask layer
A semiconductor device forming method includes providing a semiconductor substrate, forming a first mask layer on the semiconductor substrate, forming a first groove penetrating the first mask layer for a part of thickness, filling the first groove with a first hard mask layer, forming a second groove penetrating the first hard mask layer for the thickness of the first hard mask layer; utilizing the first hard mask layer as a mask to etch the first mask layer and the semiconductor substrate till a through hole or a groove is formed in the semiconductor substrate. By means of the semiconductor device forming method, only one etching process is required in formation of the through hole or the groove through a double graph technology, double graph forming process difficulty and manufacture cost are reduced, and the semiconductor device forming cost is further reduced.
Owner:SEMICON MFG INT (SHANGHAI) CORP

High-molecular environment-friendly elastic sound insulation material and preparation method thereof

The invention discloses a high-molecular environment-friendly elastic sound insulation material. The material comprises the following components in parts by weight: 10-20 parts of an allyl elastomer,5-15 parts of a styrene elastomer, 40-120 parts of a filler, 1-15 parts of a plasticizer and 2-10 parts of an assistant. The high-molecular environment-friendly elastic sound insulation material has the advantages of high density, high strength, high flexibility, high sound insulation performance, high environment friendliness, excellent high and low temperature resistance and the like. The invention further discloses a preparation method of the high-molecular environment-friendly elastic sound insulation material. The method comprises the following steps: premixing the styrene elastomer and the plasticizer in a dispersion machine, adding the obtained mixture and the allyl elastomer into an internal mixer, carrying out melting and uniform mixing, adding other components, carrying out melting, conveying the plasticized materials into a single-screw extruder, and carrying out extrusion, squeezing, stretching and shaping to obtain the high-molecular environment-friendly elastic sound insulation material. The preparation method is simple to operate, low in cost and suitable for industrial promotion.
Owner:ZHUZHOU TIMES NEW MATERIALS TECH

Special film preservative for cooked salted duck egg and film coating process

The invention relates to a special film preservative for a cooked salted duck egg. Film preservatives with barrier performance, antibacterial properties and mechanical properties are prepared with natural degradable polyvinyl alcohol and chitosan as main base materials and stearic acid, glutaraldehyde, whey protein concentrate, nano-TiO2, nano-SiO2, Kelinggu, a solvent and other materials or processing aids as auxiliary materials; and based on the data of mechanical properties, barrier performance and antibacterial properties of films prepared from different formulas, the special film preservative for the cooked salted duck egg is obtained. The special film preservative has the following beneficial effects: the special film preservative can prevent exchange between substances in and out of the shell of the cooked salted duck egg and invasion by a variety of harmful microbes during storage of the cooked salted duck egg, exerts a certain bacteriostatic effect, reduces loss of dry matters and moisture, allows the cooked salted duck egg to maintain good storage quality and prolongs the high-quality shelf life of the cooked salted duck egg; moreover, the special film preservative replaces conventional plastic composite boiling bags in packaging, so the usage amount of plastics is lowered down, environmental pollution is reduced, production cost is decreased, and benefits are increased.
Owner:高邮市红太阳食品有限公司

Casein calcium phosphorus microsphere collagen filling agent, preparation method of filling agent and preparation method of casein calcium phosphorus microspheres

The invention provides a casein calcium phosphorus microsphere collagen filling agent, a preparation method of the filling agent and a preparation method of casein calcium phosphorus microspheres. Thecasein calcium phosphorus microspheres as a novel material are adopted, so that the effectiveness and the maintaining time of a traditional collagen filling agent are improved and prolonged, the biological safety is high, and expression of collagen can be stimulated; and the casein calcium phosphorus microspheres have extremely high application prospect and value. Terminal peptide-free animal collagen or genetic recombinant human collagen is used, the material immunogenicity is low, and the material purchasing / preparing cost is low, so that the collagen is suitable for large-scale industrialproduction. Auxiliary components such as glycerin or small molecular hyaluronic acid are added into the filling agent, so that the rheological property of the filling agent can be improved, and the filling agent has stronger filling performance and is easier to inject. The process provided by the invention has the advantages of wide application prospect, low cost, no harmful wastes, industrial production, high practicability and the like.
Owner:SHANGHAI MOYANG BIOTECHNOLOGY CO LTD

Halogen-free sheet-like soft magnetic material adhesive, preparation method and halogen-free soft magnetic sheet

InactiveCN103409086BHalogen freeSolve the problem of low magnetic performanceNon-macromolecular adhesive additivesPermanent magnetsElastomerPolymer science
The invention provides a bond made from a halogen-free sheet soft magnetic material, a preparation method thereof and a halogen-free soft magnetic sheet. The bond comprises the following components in percentage by weight: 5-30wt% of polyethylene, 70-95wt% of polyolefin copolymers as well as 0.1-2.0wt% of crosslinking agent and 0.1-1.0wt% of antioxygen. The preparation method of the bond comprises the following steps of: 1) adding the components in proportion into a mixer and uniformly mixing; 2) in an intermeshing co-rotating twin screw set, extruding an infused bar by virtue of a melt extrusion reaction grafting technology; 3) cooling with cooling water at a normal temperature, and then slicing and drying to obtain polyolefin elastomer bond particles. The halogen-free soft magnetic sheet provided by the invention is prepared through the following steps: physically mixing 5-12wt% of the polyolefin elastomer bond, 84-92wt% of neodymium iron boron magnetic powder or ferrite magnetic powder, 0.2-3wt% of non-orthophthalic plasticizer and 0.1-3wt% of titanate coupler; banburying, crushing, screening, rolling, polishing by virtue of UV (Ultraviolet), magnetizing and tailoring to prepare the environmentally-friendly halogen-free soft magnetic sheet which conforms to the requirements on environmentally-friendly ROHs (Restriction of the use of certain Hazardous Substances) regulations.
Owner:HUBEI UNIV OF TECH

Preservative and film coating process for cooked salted duck eggs

The invention relates to a film-coated fresh-keeping agent specially used for boiled salted duck eggs. The present invention uses natural degradable polyvinyl alcohol and chitosan as the main substrate, supplemented with stearic acid, glutaraldehyde, whey protein concentrate, nano-TiO2, nano-SiO2, Kelingu, solvents and other materials or Processing aids to obtain coating film preservatives with barrier properties, antibacterial properties and mechanical properties. Through the data of mechanical properties, barrier properties and antibacterial properties of coating films obtained from different formulations, finally obtain special coating film preservation for boiled salted duck eggs agent, the beneficial effects of the present invention are: it can prevent the exchange of materials inside and outside the eggshell and the infection of various harmful microorganisms during the storage process of boiled salted duck eggs, and has a certain antibacterial effect, reducing the loss of dry matter and water, making Cooked salted duck eggs maintain good storage quality, extend the high-quality shelf life, and replace the existing plastic composite retort bag packaging, which can not only reduce the amount of plastic used, reduce environmental pollution, but also reduce production costs and increase profits.
Owner:高邮市红太阳食品有限公司

Raise-dust-free chalk having high filling capacity and used for magnetic blackboard

The invention discloses raise-dust-free chalk having high filling capacity and used for a magnetic blackboard. The chalk comprises the following raw materials: gypsum, modified talc powder, white carbon black, natural beeswax, glycerin, epoxy silkworm chrysalis oleic acid butyl ester, sodium dodecyl phosphate, sodium polyacrylate and a pigment, wherein the modified talc powder is prepared with the following process: talc powder, diatomaceous earth, iron(III) chloride and ferrous sulfate are placed in water and stirred uniformly, a sodium bicarbonate solution is added dropwise, the mixture is stirred, filtered and dried, and a first pre-prepared material is obtained; cyclodextrin and trimethoxyoctylsilane are stirred uniformly, an ethanol solution is added and mixed uniformly, citric acid is added to regulate the pH value of the system, and a second pre-prepared material is obtained; the second pre-prepared material is sprayed to the first pre-prepared material, the mixture is stirred and dried, and the modified talc powder is obtained. The chalk writes smooth and clear on dry and wet blackboards and does not slip, falling dust in a writing process can be adsorbed on the surface of the magnetic blackboard, raise dust is avoided, writing is erased with no mark residue, the cost is low, and the chalk is durable.
Owner:崇夕山
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