33results about How to "Play a role in expansion" patented technology

The invention discloses an expansion agent for cement or concrete, the weight percentages of the components contents of the expansion agent are that magnesium slag takes 70-95%, gypsum takes 5-15%, fly ash takes 0-20%, and additive agent takes 0-5%. The expansion agent is produced by industrial residue and the magnesium slag, which solves the problem that the magnesium slag is accumulated in quantities. The expansion agent has relatively high limited expansion rate, high compression strength and high breaking strength. The invention discloses a process for preparing the expansion agent, the magnesium slag, the gypsum, the fly ash and the additive agent are mixed and grinded in proportion, wherein the magnesium slag contains CaO and MgO and the content is larger than 50%, specific surface area achieves 300-600m2 / kg, and the expansion agent is prepared without calcining by the process.

The invention provides a reef body suitable for marine algae and fishes. The reef body comprises a floating base and a spherical sinking base. The outer portion of the floating base is provided with a floating ball; the floating base is internally provided with an upper cavity and a lower cavity which are isolated from each other; the upper cavity of the floating base is internally provided with a winding reel used for winding ropes; a plurality of extension bases arranged in parallel in the vertical direction are arranged under the floating base; a disengagement mechanism enabling the extension bases to be disengaged from the floating base on by one is arranged between the floating base and the extension bases; each of the sinking base and the extension bases is provided with a plurality of alga cultivation bricks; the sinking base is connected with the floating base through a rope; the rope penetrates through the middle portion of each extension base; the sinking base is provided with an inner cavity leading to the outside; the bottom of the inside of each extension base is provided with an extension frame capable of rotating upward. The reef body suitable for marine algae and fishes is reasonable in structure, is multifunctional, and is capable of providing food for fishes and achieving a good protection effect.

The invention relates to alcohol ether borate brake fluid. The alcohol ether borate brake fluid is prepared from the following raw materials in percentage by weight: 20-50% of triethylene glycol monomethyl ether borate, 10-45% of polyglycol monobutyl ether borate with the number-average molecular weight being 780, 10-40% of polyglycol monoether, 10-40% of multiethylene-glycol, 0-15% of triethylene glycol dimethyl ether, 0-3% of an antioxidant, 0-5% of a pH value adjusting agent, and 0-5% of a corrosion resister. According to the alcohol ether borate brake fluid disclosed by the invention, the problem that conventional alcohol ether borate brake fluid is unstable is solved, and the alcohol ether borate brake fluid has the following advantages of being high in resistance for air resistance, good in low-temperature fluidity, rustproof, anti-corrosion, good in adaptability to rubber parts and excellent in heat stability.

A preparation method of an alcohol ether borate brake fluid comprises the following steps: adding raw materials to a reaction kettle, stirring the raw materials at a temperature from room temperature to 90 DEG C until all the raw materials are fully dissolved, and filtering the obtained mixture to obtain the brake fluid, wherein the raw materials comprise, by weight, 20-50% of triethylene glycol monomethyl ether borate, 10-45% of polyethylene glycol monobutyl ether borate with the number-average molecular weight of 780, 10-40% of polyethylene glycol monoalkyl ether, 10-40% of polyethylene glycol, 0-15% of triethylene glycol dimethyl ether, 0-3% of an antioxidant, 0-5% of a pH regulator and 0-5% of a corrosion inhibitor. The preparation method disclosed in the invention solves the instability problem of common borate brake liquids, and allows the alcohol ether borate brake fluid to have the advantages of strong air blockage resistance, good low-temperature fluidity, rust prevention, corrosion prevention, good adaptability to rubber members, and excellent thermal stability.

The invention discloses a multifunctional floatable and submergeable reef which comprises a floating substrate and a sinking substrate. A ball float is arranged outside the floating substrate. The floating substrate is internally provided with an upper chamber and a lower chamber which are isolated from each other. The upper chamber of the floating substrate is internally provided with a reel for winding a rope. A plurality of expanding bases which are parallelly arranged in the vertical direction are arranged below the folating substrate. A disengaging mechanism for realizing separation between the expanding bases and the floating substrate in a one-by-one manner is arranged between the floating substrate and the expanding bases. A plurality of alga culturing bricks are arranged above the sinking substrate. The sinking substrate is connected with the floating substrate through a rope. The rope penetrates through the middle part of each expanding base. The sinking substrate comprises an upper board and a lower board. A plurality of supporting rods are fixed between the upper board and the lower board. The invention aims to provide the multifunctional floatable and submergeable reef which has advantages of realizing reasonable structure and multiple functions, providing food for fish swarms and realizing a good protecting effect.

The invention relates to the technical field of soil remediation, in particular to a heavy metal contaminated soil remediation material, a preparation method thereof and a heavy metal contaminated soil remediation method. The heavy metal contaminated soil remediation material comprises a) a allosteric extension component and a passivation component in a weight ratio of (1: 10)-(10: 1), and b) a long-acting promotion component accounting for 0.1-5% of the mass of the component a), the allosteric extension component is selected from at least one of light calcined magnesite powder, hydrotalcite, sepiolite and attapulgite, and is anhydrous; the passivation component is selected from at least one of iron powder, magnetite and pyrolusite, and the surface of the passivation component is coated with phenolic substances containing plant sources; the long-acting promotion component is selected from at least one of blast furnace slag, steel slag and red mud. The material has good long-acting passivation efficiency. The invention further provides the preparation method of the remediation material and the heavy metal contaminated soil remediation method.

The invention relates to a SiCp / EPS lost foam and a SiCp / Al casting forming technology and belongs to the technical field of casting. A preparation technology of the SiCp / EPS lost foam comprises the steps that 1 material mixing for preparation is conducted, wherein SiC particles, rare earth powder, EPS beads and adhesive are weighed and fetched according to volume parts, and the fetched SiC particles, rare earth powder, EPS beads and adhesive are evenly mixed; 2, after a mold is preheated to a work temperature, a next operation is performed; 3, the mixed materials are fed into the mold by means of compressed air, hot steam is fed, and pressure is kept; 4, hot steam is removed after pressure keeping is ended, water is sprayed to the back face of the mold for cooling so as to enable the moldto be cooled and enable the material temperature to be lowered to below a softening temperature, mold stripping is conducted after shaping, and then a SiCp / EPS lost foam pattern is obtained. The SiCp / Al lost foam casting forming technology adopts the prepared SiCp / EPS lost foam. The production efficiency is high, and the mechanical properties of a part can be improved.

The invention relates to a calcium carbonate nano ink which is prepared from the following raw materials in parts by weight: 37-45 parts of pigment, 13-26 parts of CaCO3 with the average particle size of 100nm, 10-20 parts of maleic anhydride rosin, 21-29 parts of epoxy resin, 7-10 parts of acrylic resin, 3-7 parts of isopropanol and 1-2 parts of calcium stearate. The ink has the advantages of favorable stability, low pigment consumption, high covering power, full color, clear printed image and long service life, and is suitable for industrial production.

The invention discloses an intertidal zone floating reef which comprises a floating substrate and a sunk substrate. A ball float is arranged outside the floating substrate. The floating substrate is internally provided with an upper chamber and a lower chamber which are isolated from each other. The upper chamber of the floating substrate is internally provided with a reel for winding a rope. A plurality of expansion bases which are parallelly configured in the vertical direction are arranged below the floating substrate. A disengaging mechanism which realizes separation between the expansion bases and the floating substrate in a one-by-one manner is arranged between the floating substrate and the expansion bases. A plurality of alga culturing bricks are arranged above the sunk substrate. The sunk substrate is connected with the floating substrate through a rope. The rope penetrates through the middle part of each expansion base. The sunk substrate is provided with an inner chamber which is communicated with outside, and a plurality of water-penetrable layers which are communicated with the inner chamber. The invention aims to provide the intertidal zone floating reef which has advantages of reasonable structure and multiple functions, and furthermore the intertidal zone floating reef provides food for fish swarms and realizes an excellent protecting effect.

The invention discloses a marine crop cultivation assistance reef comprising a float base and a spherical sunk base. A float ball is arranged outside the float base. Isolated upper cavity and lower cavity are arranged in the float base. A rope reel used for winding a rope is arranged in the upper cavity of the float base. A plurality of expansion bases arranged in parallel in a vertical direction are arranged below the float base. Detachment mechanisms under the control of which the expansion bases can be detached from the float base one by one are arranged between the float base and the expansion bases. A plurality of seaweed cultivation bricks are arranged on the sunk base and the expansion bases. The sunk base and the float base are connected through the rope. The rope penetrates the middle parts of the expansion bases. The sunk base is provided with an inner cavity communicating with the outside and a plurality of water permeation layers positioned below the inner cavity and communicating with the inner cavity. Expansion racks capable of rotating upwards are arranged at the bottoms in the expansion bases. The marine crop cultivation assistance reef provided by the invention has a reasonable structure and multiple functions. With the assistance reed, a food source is provided for fish stocks, and a good protection effect is realized.

The invention provides a spherical extension floating and sinking fish reef. The spherical extension floating and sinking fish reef comprises a floating base and a spherical sinking base. The outer portion of the floating base is provided with a floating ball; the floating base is internally provided with an upper cavity and a lower cavity which are isolated from each other; the upper cavity of the floating base is internally provided with a winding reel used for winding ropes; a plurality of extension bases arranged in parallel in the vertical direction are arranged under the floating base; the adjacent extension bases are connected through ropes; a disengagement mechanism enabling the extension bases to be disengaged from the floating base on by one is arranged between the floating base and the extension bases; the upper portion of the sinking base is provided with a plurality of alga cultivation bricks; the sinking base is connected with the floating base through a rope; the rope penetrates through the middle portion of each extension base; the sinking base is provided with an inner cavity leading to the outside; the bottom of the inside of each extension base is provided with an extension frame capable of rotating upward. The spherical extension floating and sinking fish reef is reasonable in structure, is multifunctional, and is capable of providing food for fishes and achieving a good protection effect.

The invention discloses a concrete expansion agent prepared from magnesium slag. The concrete expansion agent contains, by weight, 70-95% of magnesium slag. The magnesium slag contains 40-50% of calcium oxide, 20-30% of silicon dioxide, 2-5% of aluminum oxide, 6-10% of magnesium oxide and 9% of ferric oxide. Correspondingly, the invention further provides a preparation method for preparing the concrete expansion agent from magnesium slag. The preparation method includes the steps that magnesium slag is ground, and then the ground magnesium slag and other mixtures are stirred evenly. The concrete expansion agent and the preparation method have the advantages that waste slag generated in industrial magnesium making serves as the main raw material of the concrete expansion agent, so that energy is saved, production cost is lowered, industrial waste slag is utilized and turned into wealth, a lot of land occupied by magnesium slag stacking is saved, and pollution caused by magnesium slag to the environment is reduced.

The invention discloses a method for interplanting fruits and vegetables, which is a method for jointly planting eggplants and watermelons on plain land. The method comprises the steps of seed selection, soil preparation, sowing, conservation, and harvesting; the specific steps are as follows: placing the seeds of the eggplant and the watermelon respectively in different containers, pouring cold water into the containers simultaneously, enabling the seeds with plump grains to sink into the bottom of the water, removing floating residual seeds, salvaging the residual seeds, airing and storing the residual seeds, removing ground weeds, using a soil loosening plough for turning the soil, crushing soil blocks to ensure that the fluctuation deviation of the soil is not more than 8cm, introducing a water channel around the soil, pre-burying fertilizer in the soil, pouring selected seeds simultaneously into an interplanting device, driving the interplanting device by a user, so that the interplanting device runs on the surface of the land; according to the method for interplanting the fruits and the vegetables, the operation efficiency of interplanting the fruits and the vegetables can beeffectively improved, the seedlings in different periods in the growth process are better protected, and the survival rate of interplanting the fruits and the vegetables is increased.

The invention relates to a composite cement expanding agent and a preparation method thereof. The composite cement expanding agent comprises 5-50mass% of quicklime, 20-50mass% of anhydrite, 5-40mass% of an aluminum-containing clinker, 5-20mass% of a metakaolin clinker, 2-15mass% of quartz powder and 0.1-1mass% of an organic additive. The expanding agent utilizes different aluminate mineral clinkers to adjust the expansion rate and increase the effective expansion; and the expanding agent also utilizes the organic additive to improve the expanding performance in a cement plasticity phase and well compensate the contraction in the cement hydration plasticity phase and the contraction after the later-stage hardening of cement. The alkali content of the expanding agent is lower than 0.5%, so the alkali aggregate reaction can be effectively avoided; and when the doping amount is 8%, results of detection according to JC476-2001 standard of the expanding agent show that the restrained expansion rate under the maintenance in air for 21d is greater than the standard, and especially the plastic phase expansion rate is 0.02-0.15%.

The invention provides a composite phase change material for diving suit, wherein the composite phase change material is prepared by the following steps: S1, adding microcrystalline cellulose into a sodium hydroxide urea aqueous solution to obtain a microcrystalline cellulose solution; S2, adding chitosan into an acetic acid aqueous solution, stirring, adding bentonite, and uniformly mixing to obtain a bentonite-chitosan solution; S3, mixing the microcrystalline cellulose solution with the bentonite chitosan solution, and stirring to obtain hydrogel; S4, freezing and drying the hydrogel to obtain aerogel powder; S5, removing residual sodium hydroxide and urea from the aerogel powder, and performing freeze drying to obtain bentonite-chitosan-microcrystalline cellulose aerogel; S6, soaking the bentonite-chitosan-microcrystalline cellulose aerogel into the melted n-decanoic acid in a vacuum environment to obtain a mixture; and S7, adsorbing excessive n-decanoic acid on the mixture onto filter paper. The invention also provides a preparation method of the composite phase change material. According to the composite phase change material provided by the invention, the phase change material is fixed in the aerogel, so that the composite phase change material has relatively good thermal stability.

The invention provides an unsaturated spiro orthocarbonate expanding monomer. The synthesis method of the unsaturated spiro orthocarbonate expanding monomer comprises the steps of (1) weighing 6, 8-dihydroxy-1-nonene, di-n-butyltin oxide and toluene, adding into a reaction container, stirring, and reacting at the temperature of 150+ / -2 DEG C; (2) cooling the reaction liquid in the reaction container to room temperature, dropwise adding carbon disulfide into the reaction liquid, heating the reaction liquid to the temperature of 110+ / -2 DEG C, and continuing the reaction; and (3) cooling the reaction liquid to room temperature, removing toluene in the reaction liquid, washing, recrystallizing, and drying in vacuum to obtain the unsaturated spiro orthocarbonate expansion monomer. The unsaturated spiro orthocarbonate expanding monomer can be used as an anti-curing shrinkage component of an organic silicon resin packaging material. The unsaturated spiro orthocarbonate expanding monomer synthesized by the invention not only can expand through ring-opening polymerization, but also can react with an alkene monomer, acrylic resin or vinyl hydrogen-containing silicon resin, so that the shrinkage rate of the resin can be reduced.

The invention discloses a capacity expansion backpack with a shoulder massage function. The capacity expansion backpack comprises a body, bonding sheets, fasteners and shoulder straps, a first auxiliary containing bag is sewn at the front upper end of the body, foldable protection fabrics are sewn on two inner sides of a second auxiliary containing bag, elastic ropes are sewn at the ends of the lower ends of the second auxiliary containing bag and the foldable protection fabrics, the bonding sheets and the fasteners are fixed on the front surface of the body and the rear surface of the secondauxiliary containing bag, a computer placing bag is fixed on the inner rear side of the body, and a first elastic clamping connection belt and a second elastic clamping connection belt are fixed on the surfaces of the rear sides of a first fixed part and a second fixed part. According to the capacity expansion backpack with the shoulder massage function, a breathable soft pad is designed, the shoulders and the rear neck of a user can be coated and can be massaged by electric vibrating massage beads in the breathable soft pad, and the use feeling of the backpack is greatly improved.

The invention discloses novel gold wire bonding equipment for an integrated circuit chip, which belongs to the technical field of electronic equipment and can play a role in clamping a chip product through the cooperation of a limiting plate and a top plate, so that the chip products of different types can be fixed, and the chip products can be prevented from being damaged. The chip product can be prevented from deviating and shaking due to mechanical vibration, as the service time is prolonged, when a limiting plate deviates due to mechanical vibration, a push plate is driven by the restoring force of a spring so that the push plate can continue to clamp the chip product, and through matched arrangement of an expansion top ball and a clamping tooth ring plate, the chip product can be clamped more stably. In addition, when the bolt is loosened due to mechanical vibration, the restoring force of the spring can be utilized to pull the trigger plate and trigger the alarm of the buzzer, so that a worker is prompted to take corresponding treatment, and the bonding stability of the chip product is improved.

The invention provides a biological culture body for shallow sea areas. The biological culture body comprises a floating base and a spherical sinking base. The outer portion of the floating base is provided with floating balls; the floating base is internally provided with an upper cavity and a lower cavity which are isolated from each other; the upper cavity of the floating base is internally provided with a winding reel used for winding ropes; a plurality of extension bases arranged in parallel in the vertical direction are arranged under the floating base; the adjacent extension bases are connected through ropes; a disengagement mechanism enabling the extension bases to be disengaged from the floating base on by one is arranged between the floating base and the extension bases; the upper portion of the sinking base is provided with a plurality of alga cultivation bricks; the sinking base is connected with the floating base through a rope; the rope penetrates through the middle portion of each extension base; the sinking base is provided with an inner cavity leading to the outside. The biological culture body for shallow sea areas is reasonable in structure, is multifunctional, and is capable of providing food for fishes and achieving a good protection effect.

The invention discloses a curing agent for deeply stirring mucky soil as well as a preparation method and a use method thereof, and belongs to the field of mucky soil curing agents. The curing agent comprises the following components in parts by weight: 30-40 parts of cement, 30-40 parts of papermaking white mud and 20-40 parts of magnesium-based board waste, wherein the sum of the components above is 100 parts in parts by weight; and the content of MgO in the magnesium-based board waste is greater than or equal to 30wt%. The curing agent disclosed by the invention is high in strength and strong in impermeability after curing.

The present invention relates to an integrated micro-nanofiber / hydrogel double-network artificial blood vessel and its manufacturing method. The artificial blood vessel has three functional layers, the inner and outer layers are electrospun layers, and the middle layer is micro-nanofiber / hydrogel. The hydrogel double network is composed of interwoven micro-nanofiber three-dimensional network and hydrogel network. The micro-nanofiber three-dimensional network is constructed of micro-nanofibers with a high aspect ratio and more than 99% of the fibers are in a monodisperse state; The method is as follows: (1) make an electrospinning solution with high biocompatibility; (2) spin the electrospinning solution prepared in step (1) on the mold; first spin for 3 to 5 hours to form the inner layer of the blood vessel , and then spray the hydrogel precursor powder while spinning to form the middle layer of blood vessels, and finally stop spraying and continue spinning for 3 to 10 minutes to form the outer layer of blood vessels; (3) impregnate the product of step (2) into an excess In the aqueous solution of the agent, the product is obtained after removing the mold. The invention is integrally formed, has good mechanical properties, and is not easy to fall apart during application.

The invention discloses an environmental protection greening device for increasing the survival probability of plants in saline-alkali areas, comprising a mounting seat with planting holes, a placement groove is opened on the upper surface of the mounting seat, a plate body is placed in the placement groove, and the The bottom wall of the placement groove is provided with a moving groove, two sliding blocks are slidably installed in the moving groove, and a second magnetic plate is fixedly installed on the upper ends of the two sliding blocks, and the two magnetic plates are fixedly installed between the second two. There is a rod body 1, the upper ends of the two magnetic plates 2 are magnetically opposite, and a magnetic plate 1 matched with the magnetic plates 2 is fixedly installed on the lower surface of the plate bodies. The advantage is that the overall device will not block the planted plants under normal weather, so that it can fully receive light and rainwater, and in bad weather such as hot and high temperature weather and heavy rain, the board can be quickly moved to the plant. Covering and protecting it from above can improve the survival rate of plants to a certain extent.

The invention discloses a continental shelf mixed organism cultivation device. The continental shelf mixed organism cultivation device comprises a floating base and a spherical sunk base. The outside of the floating base is provided with floating balls, an upper cavity and a lower cavity which are separated are disposed in the floating base, a reel used for winding ropes is disposed in the upper cavity of the floating base, an plurality of expanding bases which are arranged in parallel in the vertical direction are disposed under the floating base, and releasing mechanisms used for controlling the expanding bases to releasing from the floating base one by one are disposed between the floating bases and the expanding bases. A plurality of alga cultivation bricks are disposed on the sunk base, the sunk base is connected with the floating base through ropes, the ropes penetrate through middle portions of all the expanding bases, an inner cavity communicating with the external environment is disposed in the sunk base. The invention aims to provide a continental shelf mixed organism cultivation device being reasonable in structure and various in function, capable of providing food for fish shoal and a good protective effect.

The invention discloses a method for fruit and vegetable interplanting, which refers to a method for jointly planting eggplant and watermelon on plain land, including seed selection-soil preparation-sowing-maintenance-harvesting operation steps, the specific steps are as follows, the seeds of eggplant and watermelon are placed in different In the container, pour cold water into the container at the same time, the seeds with full particles will sink to the bottom of the water, remove the floating residual seeds, salvage the remaining seeds, dry and store them, remove the ground weeds, use the loose soil plow to turn the land, and the soil Crush the blocks so that the fluctuation deviation of the land does not exceed eight centimeters, introduce water channels around the land, pre-bury fertilizers in the soil, and pre-bury fertilizers in the soil, and pour the selected seeds into the interplanting equipment at the same time, and the user drives the interplanting equipment , so that the interplanting equipment is driven on the land surface; the method of fruit and vegetable interplanting in the present invention can effectively improve the operation efficiency of fruit and vegetable interplanting, play a better role in protecting the seedlings in different stages of the growth process, and increase the survival rate of fruit and vegetable interplanting.