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46results about How to "Strong expansion" patented technology

Winding shaft

The invention discloses a winding shaft which is formed in a way that a plurality of expansion rings are serially connected to a main shaft, wherein each expansion ring comprises an outer ring, a first reset spring piece and a second reset spring piece, the periphery of a guide seat is provided with a plurality of arc incline sliding sections, the outer ring is sleeved on the periphery of the guide seat, the outer ring is provided with a plurality of slide block holes and a plurality of friction piece holes, the tops of arc slide blocks are inserted into the corresponding slide holes, the tops of the arc slide blocks can partially exceed the outer surface of the outer ring when sliding, the bottom surfaces of the arc slide blocks support against the arc incline sliding sections of the guide seat, one end of the first reset spring piece is fixedly connected with the arc slide blocks and the other end supports against the inner hole wall of the outer ring, friction pieces are inserted into the corresponding friction piece holes of the outer ring, one end of the second reset spring piece is fixedly connected with the outer ring and the other end supports against the bottoms of the friction pieces, and the tops of the friction pieces exceed the outer surface of the outer ring. A steel pipe and a plastic pipe can be tensioned, and the winding material with high sanitation requirement can be wound, thus the winding shaft has a wide application range.
Owner:江阴市秀祥卷轴有限公司

High-temperature-resistant plastic woven bag and preparation method thereof

The invention discloses a high-temperature-resistant plastic woven bag and a preparation method thereof. According to the invention, polypropylene is used as a base material, the varieties and formula of master batch raw materials are optimized, production technology is improved, and scientific compounding is carried out; the plastic woven bag employs Cerasus humilis fiber capable of substantially improving the shock resistance of the plastic woven bag and reducing production cost and easy to biodegrade, modified carbon nano-tubes capable of substantially improving the high-temperature resistance, relative tensile load, strength, toughness and elastic modulus of the plastic woven bag, a polyethylene/winter rye peptide compound capable of greatly improving the low-temperature resistance of the plastic woven bag, and bitter apricot kernel oil capable of effectively enhancing the lubricity and inoxidizability of the plastic woven bag; and the above-mentioned materials and other processing aids cooperate with each other, so the environment-friendly high-temperature-resistant plastic woven bag with good physical properties is prepared. The plastic woven bag provided by the invention has a filling temperature as high as 200 DEG C; filling of materials with temperatures of 160 DEG C, 170 DEG C, 180 DEG C, 190 DEG C and 200 DEG C does small harm to appearance of the plastic woven bag; and after natural storage of the plastic woven bag at room temperature for 24 h, the retention rate of the breaking strength of the plastic woven bag is still 76 to 96% and the retention rate of breaking elongation is 75 to 95%.
Owner:吴忠市富林塑料包装制品有限公司

Anti-electrostatic plastic woven bag and preparation method therefor

The invention discloses an anti-electrostatic plastic woven bag. The environment-friendly anti-electrostatic plastic woven bag with good physical properties is finally prepared through taking polypropylene as base stock, optimizing the raw material species and formula of master batch, improving a production process, scientifically compounding modified carbon nano-tubes, Prunus humilis fibers, a polyethylene/winter rye peptide complex and bitter almond oil, and enabling the compound to be in synergism with other processing aids, wherein the modified carbon nano-tubes can be used for remarkably improving the anti-electrostatic property, relative tensile load, strength, toughness and elastic modulus of the plastic woven bag, the Prunus humilis fibers can be used for remarkably improving the impact resistance of the plastic woven bag, are easily biodegradable and are reduced in production cost, the polyethylene/winter rye peptide complex can be used for greatly improving the low-temperature resistance of the plastic woven bag, and the bitter almond oil can be used for effectively improving the lubricating property and oxidation resistance of the plastic woven bag. Shown by tests, the arithmetic mean value of surface resistance of the upper and lower faces of the anti-electrostatic plastic woven bag disclosed by the invention is 0.3*10<6> omega to 0.5*10<6> omega, and the anti-electrostatic effect is 3 times that of plastic woven bags in the prior art. Simultaneously, the anti-electrostatic plastic woven bag has good physical properties, falling performance and ultraviolet resistance.
Owner:吴忠市富林塑料包装制品有限公司

Waterproof, gas-permeable and degradable mulching film and method for preparing same

The invention discloses a waterproof, gas-permeable and degradable mulching film. The waterproof, gas-permeable and degradable mulching film is made from raw materials including, by weight, 30-50 parts of polypropylene, 60-80 parts of modified starch, 10-20 parts of vulcanized butadiene rubber, 10-14 parts of propylene carbonate, 3-6 arts of nanometer titanium dioxide, 4-8 parts of nanometer medical stone, 3-7 parts of nanometer plant fibers, 1-5 parts of organic foaming agents, 1-4 parts of compatibilizers, 2-6 parts of antioxidants, 2-5 parts of plasticizers, 1-4 parts of lubricants, 3-8 parts of high-temperature type modified rosin resin emulsion and 2-5 parts of ultraviolet absorbents. The waterproof, gas-permeable and degradable mulching film has the advantages that the polypropyleneand the modified starch are used as the main raw materials for the waterproof, gas-permeable and degradable mulching film and are matched with the vulcanized butadiene rubber, the propylene carbonateand the high-temperature type modified rosin resin emulsion, an appropriate quantity of additives are further added into the raw materials, accordingly, the high-temperature resistance, the toughness,the waterproof performance, the gas permeability, the aging resistance, the antistatic properties and the anti-ultraviolet performance of the waterproof, gas-permeable and degradable mulching film can be greatly improved, bacteria can be effectively inhibited, and the waterproof, gas-permeable and degradable mulching film is excellent in biodegradability.
Owner:ANHUI JINGLIANG TONGSHUO PLASTIC FILM TECH CO LTD

Ultrathin condom formula and production process thereof

ActiveCN113337019AAnti-burst pressure increaseExplosion volume increasedMale contraceptivesMedicineActive agent
The invention relates to the technical field of condom production, in particular to an ultrathin condom formula and a production process thereof, and the ultrathin condom formula comprises the following components in parts by weight: 1000 parts of natural latex, 12 parts of casein, 3 parts of a diffusant NF, 8 parts of ammonia water, 5.6 parts of an accelerant PX, 1.6 parts of an accelerant ZDC, 15 parts of a vulcanizing agent, 12.4 parts of an active agent and 5 parts of an anti-aging agent. Compared with an existing condom, the anti-bursting pressure and the bursting volume after water injection of the condom manufactured through the formula are greatly improved, and the overall safety is better when the condom is used. The thickness of the condom manufactured through the technology reaches 0.01-0.03 mm, the condom is of an ultra-thin structure, and the comfort degree is better when the condom is used. In the condom manufactured through the technology, various stabilizer compounding agent dispersions, an anti-sticking agent and an isolating agent are adopted, and finally all new technology steps in the technology are combined for manufacturing, so that the overall anti-aging performance and the stability performance of the condom are better, the expansion force is high, and the wearing comfort can be improved; and the overall comprehensive performance is greatly improved.
Owner:山东极美乳胶科技有限公司

Dried konjac noodles and preparation method thereof

The invention discloses dried konjac noodles and a preparation method thereof. The dried konjac noodles comprise the following components in parts by weight: 12-16 parts of konjac flour, 95-100 parts of starch, 5-10 parts of fish bone meal, 5-10 parts of yeast powder, 5-10 parts of licorice roots, 1-3 parts of dried orange peel, 2-5 parts of Chinese yams, 0.5-2 parts of hemp seeds, 5-10 parts of cortex magnoliae officinalis, 5-10 parts of immature orange fruits, 3-5 parts of a food emulsifying agent and 2-5 parts of a sodium bicarbonate solution. The preparation method comprises the following steps of (1) mixing the licorice roots with the dried orange peel, the Chinese yams, the hemp seeds, the cortex magnoliae officinalis and the immature orange fruits according to the formula, performing decoction, and collecting medicinal liquid; (2) mixing the konjac flour with the starch, the fish bone meal, the food emulsifying agent and the yeast powder to obtain a mixture, adding the mixture to the medicinal liquid, and performing standing and puffing; and (3) adding the sodium bicarbonate solution of which the concentration is 2% to puffed materials, performing mixing, performing stirring and dispersion, performing refining and extruding, and performing airing so as to obtain the dried konjac noodles. The dried noodles prepared by the method disclosed by the invention not only have high nutrient value but also are not liable to break.
Owner:四川森态源生物科技有限公司

Prednisone oral pulsatile tablet and preparation method thereof

The invention discloses a prednisone oral pulsatile tablet and a preparation method thereof. The oral pulsatile tablet comprises a rapid-release tablet core, a swelling coating layer and a controlled-release film coating layer, wherein the rapid-release tablet core is composed of a main medicine and pharmaceutically acceptable auxiliary materials, the main medicine is pulsatile, the dosage specification is 1-20mg per tablet metered by pulsatile, and the tablet core weight is 120-220mg; the swelling coating layer is composed of hydroxypropyl methylcellulose, and the coating weight increment relative to the weight of the rapid-release tablet core is 1-20%; the controlled-release film coating layer is composed of a water-insoluble film coating material which is insoluble under different pH values and other pharmaceutically acceptable auxiliary materials, and the coating weight increment relative to the total weight of the rapid-release tablet core and the swelling coating layer is 1-15%. According to the prednisone oral pulsatile tablet and the preparation method thereof disclosed by the invention, the tablet core is prepared by a direct powder tableting process, the swelling coating layer and the controlled-release layer are prepared by a film coating method, the preparation is stable, and the process is simple and practicable, and high in reproducibility.
Owner:INCREASEPHARM TIANJIN INST CO LTD

Steel pile pipe internal expansion type pile lifter

Disclosed is a steel pile pipe internal expansion type pile lifter. A lifting lug, a center shaft, a hollow oil cylinder, a connecting base, a guiding cylinder, an axial movement conical wedge and a bearing baffle ring are sequentially installed on the same axis to form a driving cone body. The lifting lug and the hollow oil cylinder are located on the upper portion of the center shaft. The axial movement conical wedge and the bearing baffle ring are located on the lower portion of the center shaft. The hollow oil cylinder is connected with the upper portion of the connecting base through a connecting bolt. The guiding cylinder is connected with the lower portion of the connecting base through a connecting bolt. A balancing suspension arm is welded to the connecting base. The center shaft penetrates through the connecting base. T-shaped grooves are evenly formed in the conical surface of the axial movement conical wedge and matched with T-shaped beams on radial movement wedges. Rectangular windows are evenly distributed in the circumferential direction of the guiding cylinder and matched with the radial movement wedges. The steel pile pipe internal expansion type pile lifter has the advantages that machining difficulty is reduced, improving quality can be improved easily, machining period is shortened, machining cost is reduced, purchasing, piping, installation and maintenance are facilitated, and due to the fact that the hollow oil cylinder is arranged outside, working area is larger, and larger expansion force can be provided.
Owner:中石化石油工程技术服务有限公司 +1

Shrinkage resistant plastic woven bag and preparing method thereof

The invention discloses a shrinkage resistant plastic woven bag. Polypropylene is adopted as a base stock, variety and formula of a master batch raw material are optimized, a production technology is improved, modified nanocarbon which can remarkably improve shrinkage resistant performance, relative tension load, intensity, tenacity and elasticity modulus of the plastic woven bag, calcium fruit fiber which can remarkably improve shock resistance of the plastic woven bag, be easily degraded biologically and reduce the production cost, polyethylene/winter rye peptide compound which can greatly improve low temperature resistance of the plastic woven bag, and bitter almond oil which can effectively improve lubricity and inoxidizability of the plastic woven bag are scientifically compounded, and finally the shrinkage resistant plastic woven bag is prepared. The molding shrinkage of the preparing raw materials of the plastic woven bag is low and is lowered by 45-47% than that of a merchant modified polypropylene material with a low shrinking percentage, thus the plastic woven bag has good shrinkage performance; in addition, the prepared shrinkage resistant plastic woven bag is good in dimensional stability, does not shrink, is very applicable to environmental requirements in the storing and using processes, stable in size, and does not generate shrinkage behaviors.
Owner:吴忠市富林塑料包装制品有限公司

Antioxidative plastic woven bag and preparation method thereof

The invention discloses an antioxidative plastic woven bag. According to the invention, polypropylene is used as a base material, the varieties and formula of master batch raw materials are optimized, production technology is improved, and a composite anti-oxidant containing bitter apricot kernel oil (rich in vitamin E) is scientifically compounded; the antioxidative plastic woven bag employs modified nano-carbon capable of substantially improving the high-temperature resistance, contraction resistance, relative tensile load, strength, toughness and elastic modulus of the plastic woven bag; the antioxidative plastic woven bag also employs Cerasus humilis fiber capable of substantially improving the shock resistance of the plastic woven bag and reducing production cost and easy to biodegrade, a polyethylene/winter rye peptide compound capable of greatly improving the low-temperature resistance of the plastic woven bag, and the bitter apricot kernel oil capable of effectively enhancing the lubricity and inoxidizability of the plastic woven bag; and preparation raw materials for the antioxidative plastic woven bag have a long oxidation induction period, and the oxidation induction time is decreased by 58.33% compared with a commercially-available antioxidative modified polypropylene material. The prepared antioxidative plastic woven bag has substantial antioxidation performance and anti-aging performance, good weatherability, good environmental suitability and long service life.
Owner:吴忠市富林塑料包装制品有限公司

Light-emitting oral implant

InactiveCN110236711AOne-piece structure is stable and firmStrong expansionDental implantsLight therapyMedicineDental alveolus
The invention discloses a light-emitting oral implant. The light-emitting oral implant comprises an implant main body, wherein the implant main body adopts an integrated structure, and comprises an upper part and a lower part; the lower part is cylindrical; threads are formed in the surface of the lower part; the joint of the upper part and the lower part adopts a step structure of which the upper part is thin and the lower part is thick; an annular protrusion is arranged on the upper part surface; a cavity is formed in the implant main body; an opening which is connected with the cavity is formed in the top end of the implant main body; internal threads are formed in the opening, and a jack screw is mounted in the opening; and at least four bar-shaped through holes which communicate with the inner cavity are formed in the threaded surface outside the lower part. The light-emitting oral implant provided by the invention is implanted in an alveolar socket in an oral cavity through the threads, and the threads have high swelling force, so that the light-emitting oral implant can be fixed after being implanted; the circular structure at the bottom is adopted, so that the tissue at the bottom of the oral cavity can be protected; a disinfected light source is encapsulated in the cavity through the jack screw, and the disinfection light is projected from the through holes to disinfect gum surrounding the implant; and the implant main body adopts an integrated structure, so that the implant main body is stabler and firmer.
Owner:STOMATOLOGICAL HOSPITAL OF CHONGQING MEDICAL UNIV

Special antioxidant material for plastic tray and preparation method thereof

The invention discloses a special antioxidant material for a plastic tray and a preparation method thereof and belongs to the technical field of manufacture of trays. By taking high density polyethylene as a main raw material, types and formula of the raw material are optimized, and the environmental-friendly special antioxidant material for the plastic tray which is good in service performance can be finally prepared by scientifically compounding calcium-fruit fibers, modified nanocarbon and a compound antioxidant which have a synergistic effect with other processing aids, wherein the calcium-fruit fibers can obviously improve the impact resistance of the special material for the plastic tray, is easily biodegradable and reduces the production cost; the modified nanocarbon can obviously improve the high-temperature-resisting, antistatic and anti-shrinkage properties of the special material for the plastic tray as well as relative tension load, strength, toughness and elastic modulus; and the compound antioxidant can effectively improve the oxidization resistance of the special material for the plastic tray. The special material is quite suitable for producing and processing the tray, thereby exploring a novel path for production and processing of the tray.
Owner:BEIJING KEHUITONG WISDOM SCI & TECH CO LTD

Polypropylene composite material with strong dimensional stability and preparation method of polypropylene composite material

The invention discloses a polypropylene composite material with strong dimensional stability and belongs to the technical field of polypropylene materials. Polypropylene is used as a basic material, raw material kinds and a formula of a composite material are optimized, and a production process is improved; a calcium fruit fiber, modified nano carbon, a polyethylene / winter rye peptide complex, bitter almond oil and a composite antioxidant are scientifically compounded and are synergized with other assistants, thus finally obtaining the polypropylene composite material with good physical properties and the strong dimensional stability, wherein by means of the calcium fruit fiber, the impact resistance of the polypropylene composite material can be remarkably improved, and the production cost is reduced; the calcium fruit fiber is easily biodegraded; according to the modified nano carbon, high temperature resistance, shrinkage resistance, relative tensile load, strength, toughness and elasticity modulus of the polypropylene composite material can be remarkably improved; according to the polyethylene / winter rye peptide complex, the low temperature resistance of the polypropylene composite material can be greatly improved; according to the bitter almond oil and the composite antioxidant, the lubricating property and the antioxidant property of the polypropylene composite material can be effectively improved.
Owner:NINGXIA YANCHI WEST CHANGXIANG AGRI BIOTECH

Winding shaft

The invention discloses a winding shaft which is formed in a way that a plurality of expansion rings are serially connected to a main shaft, wherein each expansion ring comprises an outer ring, a first reset spring piece and a second reset spring piece, the periphery of a guide seat is provided with a plurality of arc incline sliding sections, the outer ring is sleeved on the periphery of the guide seat, the outer ring is provided with a plurality of slide block holes and a plurality of friction piece holes, the tops of arc slide blocks are inserted into the corresponding slide holes, the tops of the arc slide blocks can partially exceed the outer surface of the outer ring when sliding, the bottom surfaces of the arc slide blocks support against the arc incline sliding sections of the guide seat, one end of the first reset spring piece is fixedly connected with the arc slide blocks and the other end supports against the inner hole wall of the outer ring, friction pieces are inserted into the corresponding friction piece holes of the outer ring, one end of the second reset spring piece is fixedly connected with the outer ring and the other end supports against the bottoms of the friction pieces, and the tops of the friction pieces exceed the outer surface of the outer ring. A steel pipe and a plastic pipe can be tensioned, and the winding material with high sanitation requirement can be wound, thus the winding shaft has a wide application range.
Owner:江阴市秀祥卷轴有限公司

A complex formation pretreatment process

The invention relates to the technical field of stratum blocking through expansion pipes, in particular to a pretreatment process for a complex stratum. The process comprises the steps that firstly, when drilling is conducted and meets the complex stratum, a reaming-while-drilling tool is started firstly to conduct sizing reaming on the complex stratum and within the range 3-5 m away from the complex stratum in the vertical direction; secondly, the first expansion process is carried out, specifically, a solid expansion pipe is put, the two ends of the solid expansion pipe are located in the position 3-5 m away from the complex stratum in the vertical direction, and an expansion system is put into the position of the complex stratum. The expansion pipe can be anchored on the well wall. The expansion pipe body and threads do not need to bear high pressure. A locating mechanism is arranged between an expansion tool and the expansion pipe, so that sliding of the expansion pipe is avoided; the expansion force is strong; the expansion effect is good; effective blocking can be conducted on the complex stratum; follow-up operation is not influenced; bottom plug drilling and milling of are not needed; the construction risk and construction difficulty are reduced; and the construction cost is reduced.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
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