50results about How to "Large expansion force" patented technology

The invention belongs to a novel static crushing agent. The novel static crushing agent can be used cooperatively with a down-the-hole drill, and the aperture is 75-105mm. Over burnt lime undergoes ball milling or Raymond mill reduction until the specific surface area is 2100-2700cm<2> / G. The static crushing agent is prepared by mixing 43-70% of the exciting agent over burnt lime with 30-40% of a setting and hardening agent, 2-5% of a setting promoting reinforcing agent, 0.05-0.1% of a water reducer and 5-14% of a retardant. The problems of high labor cost and low efficiency caused by only use of an artificial small-aperture rock drill in previous static crushing construction are solved. The static crushing agent has the advantages of large crushing power, high mechanization degree, high construction efficiency and the like.

The invention discloses an extraction method of auricularia polysaccharide. The method comprises the following steps: carrying out mechanical coarse grinding on dried fruiting body of auricularia auricular, mixing the ground fruiting body of auricularia auricular with deionized water and fully swelling, freeze-drying, carrying out mechanical rough segmentation, homogenizing by a high pressure homogenizer, fully oscillating and mixing the auricularia auricular ultrafine-ground paste and fresh saliva, adding deionized water, adjusting pH to 1.7-1.9, adding artificial gastric juice, stirring, carrying out water-bath insulation, maintaining pH of the system to 6.6-7.0, adding a pancreatin solution, stirring, carrying out water-bath insulation, warming up and carrying out enzyme deactivation, centrifuging a mixed liquor, taking a supernatant, adding a mixture of diatomite and active carbon, fully stirring and filtering, taking a filtrate, carrying out membrane filtration by the use of a polysulfone membrane, collecting a small molecular solution, and drying to obtain auricularia polysaccharide. By the ultralow-temperature homogenization technology and by synergism of saliva and artificial gastric juice, hypoglycemic activity of polysaccharide is ensured when polysaccharide is fully dissolved out, and polysaccharide obtained has high purity and less damage to activity.

The invention relates to an efficient static fracturing agent and a preparation technology thereof. The efficient static fracturing agent is mainly used for concrete structures, silent crush and removal of rock, and exploitation of precious rocks such as marble, granite and the like. The efficient static fracturing agent is prepared from calcium oxide, limestone, alumina, amino silicone and ettringite in parts by weight. The invention has the advantages of big expansibility, short reaction time, wide adaptive temperature range, low cost, short preparation time, good mobility, reliable performance and is simple to operate in construction and safe to use, the work efficiency is improved, the efficient work time is utilized greatly, and the broken shape of the rock can be controllable.

The invention provides a silicon carbon cathode material and a preparation method thereof, a power battery and an electric vehicle. The preparation method of the silicon carbon cathode material includes the following steps: a silicon substrate is subjected to lithiation treatment to obtain a silicon lithium alloy; and a carbon functional layer is formed on an outer surface of at least part of thesilicon lithium alloy to obtain the silicon carbon cathode material. The method is simple, convenient, and easy to implement, and industrialized production can be easily realized. The silicon carbon cathode material prepared by the method has enough expansion space between the silicon substrate and the carbon functional layer even if when the silicon carbon cathode material is recharged again andexpands after the volume of the material is reduced by discharge. The expanded silicon substrate will not have a large expansive force on the carbon functional layer, so that the carbon functional layer formed on a surface of the silicon substrate is relatively complete, and more carbon functional layers will not be formed for better performance, thus the reversible capacity of silicon carbon cathode material is improved, reversible circularity is improved significantly, the service life is prolonged significantly, the multiplying power is significantly increased and high-rate charge and discharge cycles can be performed.

The present invention discloses a preparation method of body slimming and preserving nutritious food and belongs to the technical field of food productions. Black beans are germinated, the germinatedblack beans are subjected to a microwave aging, the aged black beans are crushed, corn seed coats are subjected to a supercritical extraction to prepare dietary fibers, the dietary fibers are subjected to a microwave aging, the aged dietary fibers are crushed, and then the materials are mixed with microwave aged and crushed black sesame seeds, black rice, black mulberries, black Chinese wolfberryfruits and other black food to prepare a finished product. The produced nutritious food by the method can greatly save baking time, reduces energy consumption and reduces pollution. The product is rich in rare nutrients produced by the germination of the black beans. At the same time, the manufactured corn seed coat dietary fibers by the supercritical extraction technology can also effectively increase expansion force and water-holding properties of the product. The nutritious food improves body fullness, the preparation method improves product brewing viscosity and enhances mouthfeel and smooth properties, and the nutritious food is easy to carry and eat.

The invention discloses a flexible expansion device and a manufacturing method thereof. The flexible expansion device comprises an inner bag, wherein a stable layer, a wear-resisting layer and a pressure bearing layer are arranged outside the inner bag; when one end of the inner bag is open and the other end of the inner bag is plugged, the open end of the inner bag is arranged outside one end ofa connector in a sleeving mode, the two ends of the connector are penetrated through by a passage, one end of the pressure bearing layer and one end of the wear-resisting layer are locked in the middle of the connector by locking pieces, and the other end of the pressure bearing layer and the other end of the wear-resisting layer are locked and closed; and when the two ends of the inner bag are open, each of the two ends of the inner bag is arranged outside one end of one connecting component in a sleeving mode correspondingly, the two ends of the pressure bearing layer and the two ends of thewear-resisting layer are locked to the corresponding connecting components by locking pieces, wherein the two connecting components are both connectors, or one connecting component is the connector,and the other connecting component is a plug. The flexible expansion device is good in end sealing performance, and has the advantages of being large in lifting force, easy to manufacture, small in size, light in weight, large in application space, capable of saving materials and the like.

The invention discloses a garlic straw active dietary fiber and a preparation method thereof, and belongs to the technical field of dietary fiber preparation. The preparation method comprises the following steps: taking garlic straws as the raw material, then baking, grinding, and sieving the garlic straws, adding distilled water into the processed garlic straw according to a certain material / liquid ratio, then subjecting the garlic straw suspension to a temperature-constant circulation ultrasonic treatment at a low temperature by adjusting different dual-frequency combinations, adding a catalytic enzyme to decompose and modify garlic straw dietary fibers, and subjecting enzymatic hydrolysate to steps of ethanol precipitation, centrifugation, and drying / compounding so as to obtain the garlic straw active dietary fiber product. The product has the characteristics of high content of soluble dietary fibers, good water absorbing property, high expanding force, and strong antioxidant performance.

The present invention relates to a three-way automatic temperature control valve capable of utilizing medium self-body temperature to control opening and closing of high-temperature medium channel and low-temperature medium channel of valve. Said three-way automatic temperature control valve includes the following components: valve body, low-temperature hole valve seat, high-temperature hole valve seat, low-temperature hole valve flap, high-temperature hole valve flap, regulation screw ring, temperature-sensing element, pushing bar and reset spring, etc.

The invention discloses a method for preparing graphene microflakes with high specific surface area and controllable size, which is suitable for mass production of graphene. Expanded graphite with high expansion ratio; (2) Using organic matter as an intercalation substance, blending and inserting into expanded graphite sheets to prepare expanded graphite / organic compound materials; (3) Using a pulverizer to crush the blend into a certain size; ( 4) Burn at high temperature in a certain atmosphere, expand and peel off to obtain graphene microflakes of a certain size. The invention can prepare size-controllable graphene microchip powder in batches and at low cost, and solves the problems of low yield, small size and high cost in the existing graphene preparation technology.

The invention relates to a horizontal well bushing shaping repair method and device. The method comprises putting energetic materials in a down-hole horizontal well tube sleeve to be shaped and repaired, and energy replaced by energetic materials is used for impacting on and loading the inner wall of the horizontal well tube sleeve to be shaped and repaired to enable the diameter of the horizontal well tube sleeve to be shaped and repaired to be expanded to recover the through diameter in the tube. The device comprises an igniter, an integrated drift diameter gauge, at least one shaping gun component and a gun tail. The energetic materials are one type of power sources. The method and the device have the advantages that the energy release speed is high, the diameter expanding force is large, ground rotation, lifting and down impact force are not needed, centering of the device is not required, no litters are produced, capable of solving the technical problem of horizontal well bushing shaping, meeting the current growing horizontal well bushing shaping repair requirement and applicable to shaping repair of various bushings of vertical wells, inclined wells, branch wells and the like.