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78results about How to "Anti-stick" patented technology

Easily-collapsible mud core molding sand and preparation method thereof

The invention discloses easily-collapsible mud core molding sand. The easily-collapsible mud core molding sand is prepared from the following raw materials in parts by weight: 200-240 parts of chromite sand, 20-25 parts of sepiolite, 50-56 parts of kaolin powder, 2-5 parts of steel fibers, 20-25 parts of sawdust, 10-15 parts of gypsum powder, 2-3 parts of quick lime, 10-14 parts of corn meal powder, 3-5 parts of furan resin, 1-2 parts of benzenesulfonic acid, 5-7 parts of ethyl acetate and an appropriate amount of water. According to the easily-collapsible mud core molding sand disclosed by the invention, the chromite sand, the sepiolite, the kaolin and the like are roasted and roasted at a high temperature dispersing and grinding of added gypsum powder and the like are combined, so that the molding sand not only has excellent smoothness, gas permeability, cohesiveness, toughness and plasticity, but also has cohesiveness resistance; the steel fibers are used to increase strength of the molding sand; the sawdust is used to increase collapsibility and environment is not polluted. High polymer resin is used as a binding agent, so that the easily-collapsible mud core molding sand is easily collapsible at the high temperature. Besides, the molding sand disclosed by the invention is suitable for facing sand and mud core sand of a large cast steel piece.
Owner:HEFEI CITY TENVER PRECISION CASTING

Biological fermentation tank

The invention relates to a biological fermentation tank which comprises a motor, a speed reducer, a stirring device, an upper cover, a fermentation bucket and a support. The upper cover is arranged at the upper end of the fermentation bucket and provided with a stirring opening, and the stirring device is arranged in the stirring opening and comprises a stirring shaft and stirring blades arranged on the stirring shaft. The stirring blades comprise the first stirring blade and the second stirring blade, the second stirring blade is arranged at the lower end of the stirring shaft, the first stirring blade is a flood dragon rotary blade, and the second stirring blade is a frame type stirring blade. Coatings are arranged on the outer sides of the stirring blades, the fermentation bucket is provided with an inner barrel body, an outer jacket and a shell in sequence from inside to outside, a heat preservation device is arranged between the outer jacket and the shell, a heating device is arranged between the inner barrel body and the outer jacket, and a sensor is arranged in the heat preservation device. The stirring blades are formed by combining the flood dragon rotary blade and the frame type stirring blade, therefore, reactants can be comprehensively stirred and can be effectively prevented from being pasted to the inner wall of the fermentation bucket, and the reaction rate is increased.
Owner:YANCHENG JIANFENG MACHINERY

Anti-counterfeiting self-adhesive label coating system and coating treatment method

The invention relates to an anti-counterfeiting self-adhesive label coating system and a coating treatment method. The anti-counterfeiting self-adhesive label coating system comprises a base, a tightening frame, a coating device, a cooling frame, a pressing device, a sleeving set and a winding set, wherein the coating device is mounted in the middle of the base; the sleeving set is mounted at theleft end of the base; the tensioning frame is arranged between the sleeving set and the coating device and mounted on the base; the winding set is mounted at the right end of the base; the cooling frame is arranged between the winding set and the coating device and mounted on the base; and the pressing device is arranged on the left side of the cooling frame. Through the anti-counterfeiting self-adhesive label coating system and the coating treatment method, the problems that the surface of a commonly-used coating roll is cold, a hot melt adhesive adhering to the surface of the coating roll may directly solidify on the surface of a roll body at low temperature, the adhesion force between the hot melt adhesive and the coating roll is large in the coating process, much hot melt adhesive is difficult to be transferred to the surfaces of labels, and remaining hot melt adhesive not processed in time directly solidifies on the roll body can be solved.
Owner:郭东东

Nano-carbon sol and application thereof

The invention discloses nano-carbon sol and application thereof; the nano-carbon sol is characterized in that the carbon particle size is in the range from 1 to 500 nm; the nano-carbon sol is prepared by adding sodium lignin sulfonate, which is 0.08-0.12% of the total weight of sol and is 6500 Dalton in molecular weight, into the nano-carbon sol obtained by electrolyzing water by taking a graphite electrode as the anode; the carbon content in the sol is 0.6 wt%. The nano-carbon sol disclosed by the invention is applied to petrochemical industries, medicines, environmental protection, antiviral protection and catalysts; in the aspect of medicines, the nano-carbon sol can be used as a medicine additive and a film wrapped for external injury; in the aspect of petrochemical industries, the nano-carbon sol can be used as a dispersing agent in the refining process; in the aspect of environmental protection, the nano-carbon sol can be used as a flocculating agent and bactericide for water treatment; in the aspect of antiviral protection, the nano-carbon sol not only can be used as an antiviral filtering material but also can be used as a chemical catalyst; the nano-carbon sol disclosed by the invention has the antiinflammation effect; a nano-carbon sol medical catheter has excellent mechanical strength, good low-friction of the sliding surface and antithrombus; in addition, the nano-carbon sol disclosed by the invention has excellent biological degradability.
Owner:GUIZHOU TELIDA NANO CARBON SCI & TECH +1

Spray-welding coating technology for hot-rolling laminar cooling roller and use fixture for technology

The invention relates to a spray-welding coating technology for a hot-rolling laminar cooling roller. The spray-welding coating technology comprises the following steps: 1) blanking a roller and processing before spraying; 2) preheating a workpiece; 3) conducting spray-welding coating: adjusting the velocity of the roller to be 15-20 revolutions per minute, adjusting the position of a spray gun and opening the spray gun, adjusting the powder delivery volume and flame, and meanwhile, moving the roller forwards at a constant speed of 280 mm/min, so as to ensure that the hard alloy in the spray gun is uniformly sprayed on the outer circumference of the roller; 4) auto-rotating the sprayed roller in the environment at the temperature of 370 DEG C to enable the hard alloy on the roller to remelt, and after the hard alloy coating is molten, placing the roller to be subjected to air cooling to obtain the roller with the hard alloy coating. The cooling roller sprayed and welded by adopting the technology and the fixture for spray-welding coating has the functions of abrasion resistance, thermal barrier, antioxidation, corrosion protection, scaffolding resistance, caking inhibition and the like, as well as the service life longer than that of a roller bed in market application.
Owner:ANSHAN ZHENGFA SURFACE TECHN & ENG CO LTD

Bionic stirring machine for injection grout, hybrid power bionic stirring system and slurrying method of hybrid power bionic stirring system

The invention discloses a bionic stirring machine for injection grout, a hybrid power bionic stirring system and a slurrying method of the hybrid power bionic stirring system. The bionic stirring machine for injection grout comprises a stirring tank with a feed inlet and a slurry discharge pipe. The bottom face of the stirring tank is an inclined face which is inclined towards the slurry discharge pipe. The upper end of the stirring tank is fixedly provided with a power portion through a supporting frame. The power output end of the power portion is connected with a stirring shaft in the stirring tank. A stirring paddle is vertically or obliquely arranged on the stirring shaft. When the stirring paddle is obliquely arranged on the stirring shaft, the inclination direction of the stirring paddle is opposite to the rotation direction of the stirring shaft. The inner surface of the stirring tank, the inner surface of the feed inlet, the inner surface of the slurry discharge pipe and the stirring paddle are each provided with a plurality of bionic non-smooth units. The superficial area of faces, making contact with the bionic non-smooth units, of the stirring tank, the feed inlet and the slurry discharge pipe is 20-50% of the superficial area of the inner surfaces of the components, and the superficial area of the faces, making contact with the stirring paddle, of all the bionic non-smooth units on the stirring paddle is 20-60% of the superficial area of all surfaces of the stirring paddle.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Printing missing word repairing method

The invention relates to a printing missing word repairing method. The printing missing word repairing method comprises the following steps of: (A) preparing a printing plate of words to be repaired, moving out a word missing part of a book, typesetting the word missing part and reserving an appropriate space convenient for operation in the future repairing; (B) making a repairing printing film according to four layers of a transparent film base material, a mold release agent, transfer printing ink and hot melt adhesive in sequence and printing the words needed to be transferred onto the transparent film by using a screen printing method; (C) making a transfer printing iron board according to the range of the repaired words; (D) heating a heating body to 180-200 DEG C and placing the transfer printing iron board on the heating body for 10-20 minutes; (E) placing the machined transfer printing film at a part needed to be repaired, aligning positions of the transfer printing film and the part needed to be repaired, impressing the heated transfer printing iron board onto the words needed to be thermoprinted, and moving out the transfer printing iron board after heated for 2-3 seconds; and (F) cooling the transfer printing film for 10-15 seconds and rapidly uncovering the thermoprinting film with heavy force. The method provided by the invention has the advantages of simplicity and convenience for operation, cost reduction, high repairing speed and the like.
Owner:南京爱德印刷有限公司

Aliphatic polyurethane resin preparation method

The invention relates to the technical field of materials for synthetic leather, in particular to an aliphatic polyurethane resin preparation method. The method includes the steps: 1) increasing the temperature of 35 parts of poly adipic acid glycol-butanediol ether glycol and 35 parts of polycaprolactone glycol to 100 DEG C, performing vacuum dehydration for about 1h and cooling to 50 DEG C, wherein the molecular weight of the poly adipic acid glycol-butanediol ether glycol is 3000, and the molecular weight of the polycaprolactone glycol is 1000; 2) adding 150 parts of methylbenzene, 83 parts of IPDI (isophorone diisocyanate), 19 parts of H12MDI (dicyclohexylmethane 4,4- diisocyanate) and 0.2 part of stannous octoate into a reactor with stirring uniformly, increasing the temperature to 90 DEG C and reacting for 3h; 3) adding 5 parts of 1,4-butanediol and 9 parts of neopentyl glycol to continue reaction for 3h at the temperature of 90 DEG C; 4) cooling to 50 DEG C, adding 250 parts of methylbenzene, 200 parts of isobutyl alcohol and 200 parts of ethyl acetate with stirring uniformly, slowly tackifying with 13.8 parts of IPDA (isophorone diamine), and stopping adding the isophorone diamine when the viscosity is increased to 3000cps; and 5) continuing to stir for 30 minutes and cooling to 30 DEG C to discharge, so that weak-solvent aliphatic polyurethane resin with 20% of solid content and 180kgf/cm<2> of modulus is obtained.
Owner:ZHEJIANG SUNLIGHT MATERIAL TECH CO LTD
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