138results about How to "Easy to pile up" patented technology

The invention provides a fluorescent probe represented by the formula (I), wherein R1 and R2 are independently selected from H or an aromatic vinyl group, and at least one of R1 and R2 is the aromatic vinyl group; R3 is selected from H, F, Cl, Br, OH, OCH3, N(CH3)2 or C1-C6 alkyl; and R4 is selected from C1-C6 alkyl. Compared with the prior art, because the fluorescent probe provided by the invention has a relatively large electronic conjugated system and plane, the intensity of the intramolecular charge transfer effect can affect the molecular fluorescence emission intensity; when the fluorescent probe and the G-quadruplex generate a specific action, the flexibility of intramolecular rotatable double bonds is restricted, the intramolecular charge transfer effect is enhanced, and the fluorescence is also enhanced significantly; moreover, the fluorescent probe provided by the invention has the advantages of low biotoxicity, phototoxicity and photobleaching property, good light stability, good water solubility and good cell membrane permeability.

The invention belongs to the technical field of inorganic nonmetallic materials and discloses a silicon oxide bonded silicon carbide material. The silicon oxide bonded silicon carbide material is prepared from, by mass, 60-75% of silicon carbide particles, 18-30% of silicon carbide fine powder, 3-8% of silicon carbide micro powder, 1-3% of silica powder, and 0.3-1.5% of nano-silica, and the total mass percentage of the raw materials is 100%. Liquid phenolic resin serving as a binding agent is also added to the silicon oxide bonded silicon carbide material. The raw materials for preparing the silicon oxide bonded silicon carbide material are evenly mixed with liquid phenolic resin to generate pug, the pug is molded, dried and then sintered in a high-temperature kiln with the highest sintering temperature being 1350-1500 DEG C, then the product is cooled together with the kiln to be indoor temperature so that the silicon oxide bonded silicon carbide material can be obtained. The silicon oxide bonded silicon carbide material has the advantages of being high in purity, excellent in high-temperature performance and high in comprehensive performance.

The invention discloses a grinding method for a thin wall guide tube with a tungsten carbide coating and particularly relates to the grinding method for the thin wall guide tube with the tungsten carbide coating and a fixture. According to the grinding method for the fixture, the fixture is ground by operating a grinding machine, and the positioning accuracy of workpieces is improved; according tothe grinding method for the thin wall guide tube with the tungsten carbide coating, grinding machining process parameters are confirmed on base of the grinding technical requirements for the outer outline (an outer circle, a transition circle angle, an end face and an end face chamfer) of the thin wall guide tube with the tungsten carbide coating, and grinding process control is performed on theouter outline of the thin wall guide tube with the tungsten carbide coating; by means of the grinding method for the thin wall guide tube with the tungsten carbide coating and the fixture, the fact that the grinding machine, the fixture, a grinding wheel and the workpieces form a complete process system in grinding is realized, in this way, occurrence of the coating grinding quality problem of aluminum alloy sleeve type thin-wall parts of some type is completely eradicated, and the long-term practice test is performed, the qualified rate of the parts is increased, and the grinding method for the thin wall guide tube with the tungsten carbide coating and the fixture has reference significance in guiding production.

The present invention discloses a fungal bottle basket and a use method thereof in factory production. The fungal bottle basket comprises a basket body, and the basket body comprises a basket wall and a basket bottom. The basket bottom comprises a plurality of first bottoms, a plurality of second bottoms and a plurality of third bottoms, wherein the first bottoms are used for arranging fungal bottles; protruding columns are arranged on the second bottoms and extend upwards from the second bottoms; spaces are formed between the first bottoms and the adjacent protruding columns or between the first bottoms and the adjacent protruding columns and ribs, and the side walls of the accommodated fungal bottles are in contact with the adjacent protruding columns or the adjacent protruding columns and ribs; the third bottoms are positioned between the first bottoms and the second bottoms. The fungal bottle basket has the characteristics of easiness for management, high labor efficiency, great anti-slip property, low contamination rate, convenience for stacking, no bed frame, safety, reliability, space saving and suitability for factory production of most cordyceps militaris.

The invention relates to a motor bearing lubrication structure, in particular to a motor bearing lubrication system. The motor bearing lubrication system solves the problem that lubricating grease always leaks and throws out, and is always accumulated in an outer bearing cover and external foreign matters are easy to enter the bearing when the traditional motor bearing lubrication structure is used. The motor bearing lubrication system comprises an end cover, a sealing ring, an inner bearing cover and an outer bearing cover, wherein the outer bearing cover is provided with a grease discharging hole; the inner side of the end cover is sheathed with a bearing chamber; the end surface of the outer side of the bearing chamber is provided with an oil deflector ring; a second O-shaped seal ringis installed between the end surface of the inner side of the oil deflector ring and the end surface of the outer side of the bearing chamber; and a labyrinth seal is arranged between the end surfaceof the outer side of the seal ring and the end surface of the inner side of the outer baring cover. According to the motor bearing lubrication system, the problem that the lubricating grease always leaks and throws out, and is always accumulated in the outer bearing cover and the external foreign matters are easy to enter the bearing when the traditional motor bearing lubrication structure is used can be effectively solved, and the motor bearing lubrication system is suitable for the motor bearing lubrication.

The invention discloses an underground tunnel large dynamic water plugging method. The method comprises the steps that (1), the position, the direction and the specification shape of a tunnel are determined according to a tunnel design drawing; (2), a plurality of drill holes are drilled in a permeable tunnel on the ground in the direction of the tunnel and are spaced by a certain distance, and an orifice tube is arranged at the upper mouth of each drill hole; (3), aggregates are thrown into the permeable tunnel through any drill hole to determine the water bursting tunnel dynamic conditions, and the number of thrown iron chains is determined; (4), the iron chains are thrown into the permeable tunnel from the drill hole in the most downstream, and the iron chains are stacked to be in a mountain shape in the permeable tunnel; (5), large and small aggregates are thrown into the upstream drill holes sequentially from the drill hole adjoining to the most downstream, and the large and small aggregates and the iron chains form a filter framework until a water plugging curtain is formed; (6), after the water plugging curtain is built, the permeable tunnel is grouted from the drill hole in the most upstream and then burst water can be plugged; (7), the iron chains can be lifted out after grout is solidified. The method has the advantages that water is plugged fast and materials are saved.

The invention discloses flame-retardant heat-resistant bismaleimide resin and a preparation method thereof, belonging to the technical field of high performance thermosetting resin. According to the technical scheme, the flame-retardant heat-resistant bismaleimide resin is prepared from the following raw materials in parts by weight: 5-20 parts of phenylphosphonic dichloride, 21-52 parts of 1-amino-5-naphthol and 10-40 parts of maleic anhydride. The bismaleimide resin has a good molding technology and a cured product has high heat resistance and excellent flame retardance; the glass-transition temperature of the cured product reaches 370 DEG C, and the limit oxygen index reaches 48; benzyl di(5-amino) naphthoxy phosphonic acid is prepared by reaction between phenylphosphonic dichloride and excessive 1-amino-5-naphthol, and prepared benzyl di(5-amino) naphthoxy phosphonic acid is reacted with maleic anhydride to obtain the flame-retardant heat-resistant bismaleimide resin. The flame-retardant heat-resistant bismaleimide resin and the preparation method disclosed by the invention have the beneficial effects that the reaction is stable, the process condition is easy to control, unreacted raw materials can be recycled, and no three wastes are generated, so that the flame-retardant heat-resistant bismaleimide resin and the preparation method are suitable for industrialized production.

The invention discloses a desilting device of a water conservancy project. The desilting device of the water conservancy project comprises a turnover digging mechanism, a suction mechanism, a crushingmechanism and a sludge containing box, wherein the turnover digging mechanism comprises a pair of L-shaped supports which are vertically arranged and a rotating column which is horizontally arrangedin the axial direction; the suction mechanism comprises a suction cover and a stone filter screen arranged in the suction cover, and the suction cover is a circular truncated cone structure which is small in upper part, large in lower part and communicates in the axial direction; the crushing mechanism comprises an outer shell, an inner shell positioned in the outer shell, and a cutter body arranged inside the inner shell; the sludge containing box comprises a lower box body and an upper box body, wherein the lower box body and the upper box body are in sealing connection, the lower box body and the upper box body are both cylindrical structures which are vertically arranged in an axial direction. According to the device, sludge can be thoroughly cleared, the large-particle pebble hard objects are prevented from damaging a waste water pump, a pipeline cannot be blocked, the fineness of the cleared sludge is uniform, the water content is low, and the desilting device is a preferred option for preparing fertilizer.

A secondary chromeplating process for a printing round-net die includes: plating nickel on a processed die blank, and performing first-time chromeplating and second-time chromeplating, wherein the first-time chromeplating solution is prepared by 240-350g/l of chromium trioxide, 2-10g/l of chromium sesquioxide, 2-5g/l of sulfuric acid and purified water; and the second-time chromeplating solution is prepared by 80-140g/l of chromium trioxide, 1-8g/l of chromium sesquioxide, 200-700mg/l of chloridion and purified water. A layer of chromate film is added on the first-time chromeplating surface of the die blank and firmly bonded in hexagonal net points of the die blank, when insulator glue is embedded in the hexagonal net points of the die blank, the chromate film can be well bonded, and glue dropping cannot be generated. The printing round-net die produced by the secondary chromeplating process is high in surface smoothness, long in service life, good in net evenness and high in poring rate and overcomes the shortcomings existing in the prior art.

The invention discloses a method for preparing foamed ceramic from slag. The method comprises the following steps: by selecting nickel-smelting water-quenching slag (short for slag) discharged after refining ferronickel from laterite-nickel ore as a main raw material, adding a proper amount of kaolin and alumina powder; and preparing the foamed ceramic according to the following technological processes: sorting the nickel-smelting water-quenching slag; crushing; screening; weighing; adding the kaolin; adding the alumina powder; mixing the materials; molding; and sintering. The method is characterized in that the discharged quenched slag for smelting nickel after refining ferronickel by the laterite-nickel ore is selected as the main raw material, no foaming agent or template is utilized, holes which are even in distribution and controllable in size are formed in a sintering body by virtue of chemical reaction of the slag, the kaolin and the alumina powder at high temperature, and the foamed ceramic of mullite is finally prepared. The foamed ceramic has the advantages of high compressive strength, high hardness, uniform and beautiful color and low cost and is simple and convenient in pore size control, the slag is fully utilized, and the waste materials are changed into things of value.

The invention provides a display device, a flexible OLED display panel and a manufacturing method thereof, wherein a concave-convex undulating organic soft layer is fabricated by utilizing an uneven structure of a plurality of first deep grooves in a solid flexible substrate, and an air gap is formed between the organic soft layer and an inorganic material layer on the organic soft layer. The invention has the advantages that: firstly, a plurality of first deep grooves are made to remove part of the material of the solid flexible substrate, and the bending performance of the solid flexible substrate is improved; Secondly, the tensile property of the organic soft layer is better than that of the inorganic material, which can cushion the stress in the bending process of the OLED display panel. Third, the air gap provides the accommodation space for tensile or compressive strain of the soft material layer, and does not cause the stress transfer between the layers.

The invention provides an electric dust collector. A dust-collecting device of the electric dust collector comprises a structure configuring a primary filter (21) configured in the following manner: in the primary filter (21) provided with a plurality of through holes penetrating through an upstream side surface and a downstream side surface of the primary filter (21), a direction of a central axis and a forward direction of an outer side swirling airflow (61) flowing on the upstream side surface of the primary filter (21) form a second inclined angle which is downward inclined opposite to the forward direction. The central axis is a straight line of connecting an opening center of a first etching hole and an opening center of a second etching hole. Therefore, a declining swirling airflow (61) going toward a direction of a dust-collecting chamber (33) can be generated in the inner circumference of the primary filter (21), so that the dust can be prevented from flying; and blockage of the filter can be prevented.

The invention relates to a melt siliconizing method for a small-size circular-section ceramic-based composite material component. The invention aims to solve problems that in the LSI process preparation process of a small-size circular-section ceramic matrix composite zero component, the internal and external density gradient difference is likely to be generated, the component density uniformity is poor, deformation is liable to happen, and bottom liquid silicon is liable to be accumulated and bonded. The method mainly comprises the steps of preparing a fused siliconizing tool, machining a small-size circular-section ceramic-based composite material component semi-finished product and preparing the small-size circular-section ceramic-based composite material component; wherein specifically, an inner mold of the small-size circular-section ceramic-based composite material component semi-finished product is filled with SiC sand; meanwhile, powder is packed into a gap, namely a powder filling area, formed between the outer wall of the small-size circular-section ceramic matrix composite component semi-finished product and the inner wall of the first crucible unit. Due to internal andexternal double-sided melt infiltration, the process effectively improves the modification uniformity.

The invention discloses a dual-network crosslinked epoxy resin. A preparation method of the dual-network crosslinked epoxy resin comprises the following steps: synthesizing 5-maleimide-1-naphthol by taking maleimide and 5-amino-1-naphthol as major raw materials; and reacting the obtained 5-maleimide-1-naphthol with paraformaldehyde, epoxy chloropropane and sodium hydroxide to obtain the dual-network crosslinked epoxy resin. The obtained epoxy resin contains an epoxy group and a maleimide group, and an epoxy loop-opening and imide polymerization dual-network crosslinked network can be formed in crosslinking and curing processes; and an obtained condensate has the characteristics of superior flame retardance and high heat resistance, and can be taken as a substrate of a high-performance composite material used in a high-temperature environment.

The invention provides a replacement-free plate rib type steel plate flame cutting platform. The platform comprises a ground platform support frame; transverse steel plates and vertical steel plates are mounted on the ground platform support frame; multiple first clamping grooves are arranged on the vertical steel plates at equal intervals; transverse steel plates are arranged in the first clamping grooves, so that the transverse steel plates and the vertical steel plates form a latticed structure; multiple second clamping grooves are formed in the transverse steel plates; support pieces are mounted in the second clamping grooves, are cylinders with cones at the tops, and are clamped in the second clamping grooves through through grooves; the support pieces are arranged on the transverse steel plates in a lattice manner to form support planes; and the top ends of all the support pieces are positioned on the same horizontal plane. The platform is simple in structure, can use specificity of the support pieces for solving such problems as damage, lagging and tumor hanging in the steel plate cutting process of factories, reduces the replacement frequency of the support plates of the cutting platform, prolongs the service life of a cutting machine, and improves the production safety.

The invention provides a display device, a flexible OLED display panel and a manufacturing method of the flexible OLED display panel. A wave-shaped organic soft layer is manufactured by utilizing an uneven structure of a plurality of strip-shaped sacrificial protrusions, then the strip-shaped sacrificial protrusions are removed, and an air gap is formed between the organic soft layer and a solid flexible substrate under the organic soft layer. The method has the advantages that 1, the tensile property of the organic soft layer is high relative to that of an inorganic material, so that the stress in the bending process of the OLED display panel can be buffered; 2, the organic soft layer is uneven, and compared with a planar structure, the stress in the OLED display panel with different curling degrees can be buffered; and 3, the air gap provides a containing space for the soft layer to stretch or compress the strain, so that stress transmission between the layers cannot be caused.

The invention belongs to the field of functional materials, and particularly relates to a coordination balance cationic salt, and a magnet formed by a metal dithiolene complex and preparation methods thereof. The coordination balance cationic salt reacts with coordination anions to obtain the metal dithiolene complex; on one hand, the 4-iodobenzyl and 4-phenylpyridin in the coordination balance cation are respectively of a plane structure, the plane structures respectively have a symmetric axis, and are crossed at the connected carbon atom of 4-iodobenzyl and 4-phenylpyridin, and the whole inverted Y-shaped structure is formed; on the other hand, the coordination anion is of a plane structure, and the self-rotation density of the unpaired electrons is distributed on the whole anion skeleton. By adopting the structure, the magnet formed by the coordination balance cations and coordination anions is of an equal-spacing arrangement structure, the cations and anions are stacked into columns by lines, and the electron transmission and self-rotation coupling of the metal dithiolene complex are favorably performed. The magnet formed by the metal dithiolene complex has the advantages that the technology is simple, the control is easy, the reaction speed is quick, and the product purity is high.

The invention relates to a shot blasting room for metal plate machining. The shot blasting room comprises a blasting room body, a grid plate is arranged on the bottom in the blasting room body, a shotblasting mechanism is arranged above the grid plate, a separation and dust collection mechanism is arranged below the grid plate, the separation and dust collection mechanism comprises a separation assembly and a dust collection assembly, the separation assembly comprises a filter net, a vibrator and two guide plates, the dust collection assembly comprises a fan, an air supply pipe, a dust discharge pipe and a collection box, and the shot blasting mechanism comprises a loading assembly and an adjusting assembly. In the shot blasting room for metal plate machining, the height and the angle ofa nozzle can be adjusted, different workpieces are subjected to automatic comprehensive shot blasting treatment, work is safer and efficient, the shot blasting quality is better, dust is prone to being stacked, wind is adopted for conveying dust, cleaning is efficient and convenient, effective shots can be separated and recycled, the raw material waste is reduced, and production cost is reduced.

The purpose of the present invention is to provide a securing device for transporting a two-wheeled vehicle that reliably secures a two-wheeled vehicle during transport and lessens the mechanical burden of doing so, and that is compatible with two-wheeled vehicles differing in size and otherwise. The securing device secures a two-wheeled vehicle (A) to a floor (2) in order to transport the two-wheeled vehicle. A body holding member (20) that rests on the seat of the two-wheeled vehicle (A) is provided so as to be height adjustable, and a front wheel stop member (40) and a rear wheel stop member (30) that secure the position of the front wheel and the rear wheel are provided so that the front-to-back distance between the two members is adjustable. The floor (2) or members formed integrally therewith, the body holding member (20), and the rear wheel stop member (30) are connected via a continuous belt (10). Through adjustment of the length of the belt (10) the body holding member (20) presses the saddle from above and the front-to-back distance between the front wheel stop member (40) and the rear wheel stop member (30) is reduced and thus both members restrict the front-to-back direction positions of the front and rear wheels.

The invention discloses a chip packaging body exposed welding pin and a processing method thereof, and belongs to the technical field of semiconductor packaging, and the processing method comprises the following steps: after a packaging body is formed, forming a protruding welding pin on the packaging body before the packaging body is cut, so as to replace the step of forming the welding pin while forming a conductive layer group on the packaging body. Firstly, a plurality of cutting grooves are formed in a packaging body, each cutting groove is formed in the position of a cutting channel to be cut on the packaging body, each cutting groove is divided into two parts which are symmetrical left and right by the cutting channel, protruding weld legs are formed on the packaging body and in the cutting grooves, and the protruding weld legs comprise side weld legs and bottom weld legs. According to the packaging body, an original plate-shaped welding leg is changed into the L-shaped protruding welding leg wrapping the right-angle side of the packaging body, the forming sequence of the welding leg is changed, machining is convenient, tin climbing is obvious when the packaging body is welded, observation is convenient, and pseudo soldering is avoided.

The invention provides a coal particle drying device. The coal particle drying device comprises a drying cylinder for drying coal, a supporting base for supporting the drying cylinder, an inclined surface material turning mechanism for turning the coal and a uniform material screening mechanism, wherein the bottom of the drying cylinder is fixedly connected with the supporting base, the inclined surface material turning mechanism is arranged on the drying cylinder, and the uniform material screening mechanism is arranged on the drying cylinder and the inclined surface material turning mechanism. The invention relates to the field of coal processing. According to the coal particle drying device, a special structure which can facilitate uniform dispersion, improve the lift and turn the coal at various angles is designed according to the problems that in an existing coal drying process, the coal is prone to bonding, low in lift and not prone to turning, and thus, the problems that a common drying device difficultly uniformly turn the coal, the coal rolling amplitude is small, the coal is prone to accumulation, the lift in the cylinder is low, the coal drying is not uniform, and the drying efficiency of the coal is influenced to a certain extent are effectively solved.

The invention relates to a greenhouse with a ventilating function. The greenhouse comprises a wall body. A ceiling is arranged at the upper end of the wall body. A ventilating device is arranged on the wall body, and comprises a window plate arranged on the wall body. A vent hole is formed in the wall body and runs through the wall body. The lower side of the window plate is hinged to the lower edge of the vent hole. The outer edge of the window plate and the inner wall of the vent hole are each provided with a sealing elastic layer. Louver blades are arranged in the vent hole and provided with grids. A power channel is arranged in the vent hole. A motor and a fixing frame for fixing the motor are arranged in the power channel. An impeller is arranged at the output end of the motor. A filtering channel is connected with the power channel. A coarse filter screen and a fine filter screen are sequentially arranged on the filtering channel from outside to inside. A silent plate wraps the outer surface of the filtering channel. A flame-retardant plate wraps the outer surface of the silent plate. The greenhouse of the structure has a high ventilation property and high safety.

The invention relates to a metal organic framework material, in particular to a preparation method of the metal organic framework material, which comprises the following steps: (1) adding a metal zirconium salt and a dicarboxylic acid organic ligand into an aprotic polar solvent, and stirring the solution at room temperature until the solid is completely dissolved to obtain a solution I; (2) adding monocarboxyl organic acid into the solution I, and uniformly stirring the solution I to obtain a solution II; (3) adding water into the solution II to obtain a solution III; (4) adding a regulator into the solution III to obtain a solution IV, the regulator being one of xylene, trimethylbenzene or tetramethylbenzene; (5) controlling the temperature range of the solution IV to be 25-300 DEG C, and carrying out hydrothermal reaction; (6) after the reaction is finished, carrying out centrifugal separation, washing and drying to obtain a target product. Herein, the small-grain zirconium-based MOFs material can be successfully obtained by controlling the nucleation and crystallization rate of the metal ions and the organic ligands, so that the mass transfer efficiency of the microporous material is improved.

The invention belongs to the field of healthcare drinks, particularly relates to a healthcare drink capable of losing weight and provides a healthcare drink capable of decomposing fat and preventing fat accumulation to reduce fat and to lose weight. The healthcare drink is prepared from the following raw materials: green papaya, strawberry, radix bupleuri, lotus leaves, rhizoma alismatis, cassia seeds, pu'er tea, honey and spring water. The healthcare drink is prepared by the following methods of firstly extracting papaya enzyme from papaya; decocting and filtering Chinese herbal medicines in the raw materials to obtain a Chinese herbal medicine liquid, mixing the Chinese herbal medicine liquid with brewed pu'er tea and strawberry juice evenly, adding the extracted papaya enzyme at the ratio and carrying out seasoning through adding the honey and the spring water to prepare the healthcare drink capable of losing weight. Natural raw materials are adopted, so that the healthcare drink does not contain any feed additive, is unique in taste, healthy and nutrient, is rich in effective components of the papaya enzyme and multiple Chinese herbal medicines and has the healthcare efficacies of relaxing bowel, reducing fat and blood pressure and losing weight.