16results about How to "Dissipate quickly" patented technology

The invention provides a single-component slow-curing flame-retardant smoke-suppression polyurethane for roads and a preparation method of a mixture containing the same. The mixture comprises the following raw materials: a stone combination, a single-component polyurethane adhesive, a curing agent and an inorganic flame retardant, and a pore-forming material is added into the single-component polyurethane adhesive. According to the method, the smoke density is reduced without the help of a large number of smoke suppression materials, the size of an internal pore structure is freely adjusted and controlled from a polyurethane body structure, efficient smoke absorption is achieved, and the method has a good effect on tunnel environment application.

The present application relates to organic solid waste resource utilization and processing technical field, especially be a kind of slot type aerobic fermentation roof that is convenient to open and close, the present application is integrated with five big functions of light, rainproof, heat preservation, deodorization, ventilation by top double-layer function layer, without additional heat preservation shed, deodorization tower and other equipment, and by independent or linkage adjusting the opening and closing state of nanometer membrane layer, sunlight shed layer, it can adapt to sunny, rainy, low temperature, high temperature and different air, as well as the demand of different fermentation stages such as temperature rising period, high temperature period, decomposition period, solve the problem of traditional device single function, poor adaptability, improve the sunlight utilization rate of temperature rising period by sunlight shed, accelerate temperature rising, while the air sandwich layer between the closed state of double-layer sunlight shed can effectively heat preservation, avoid temperature loss too fast in winter, the blocking rate of odor molecules reaches more than 90% using nanometer membrane layer, without setting deodorization equipment separately, greatly reduce operating cost.

The invention belongs to the technical field of circuit board processing, and particularly discloses a PCB multilayer circuit board drilling device which comprises a clamping seat and drilling structures distributed on the clamping seat, a protective shell and a workpiece body are detachably connected to the clamping seat, displacement adjusting structures are distributed on the inner wall of the protective shell, drilling pieces are connected to the displacement adjusting structures, and the workpiece body is detachably connected to the clamping seat. And the displacement adjusting structure is used for driving the drilling piece to move up and down, so that the drilling piece drills the workpiece body, and a roller structure and a suction structure are connected to the displacement adjusting structure. When a workpiece body is drilled through a drill bit, an abutting column drives a bullseye wheel to abut against an aluminum sheet in advance, so that the situation that when the drill bit penetrates through the aluminum plate to drill the workpiece body, the bottom face of the aluminum plate cannot be effectively attached to the workpiece body can be avoided, and meanwhile when the abutting column drives the bullseye wheel to abut against the aluminum sheet in advance, the aluminum sheet cannot be effectively attached to the aluminum sheet. And when the drill bit is pulled out of the aluminum plate and the workpiece body, the drilling part of the aluminum plate is prevented from being separated from the workpiece body, and drilling cuttings are prevented from entering the space between the aluminum plate and the workpiece body.

The application discloses an electro-optic crystal electric field sensor based on a gradient coating design and a preparation method thereof, and relates to the technical field of optics. The electro-optic crystal electric field sensor based on the gradient coating design comprises an electro-optic crystal, a conductive layer covering the surface of the electro-optic crystal, and an antistatic layer covering the conductive layer, and the resistivity of the antistatic layer is in a gradient distribution. The conductive layer covering the surface of the electro-optic crystal can quickly collect electric charges, the antistatic layer covering the conductive layer can promote uniform distribution and rapid dissipation of the electric charges, prevent local electric field distortion, and the protective layer covering the antistatic layer provides effective physical and chemical protection without sacrificing optical performance; and the technical problem that a larger measurement error is caused by electric charge accumulation on the surface of the electro-optic crystal when the electro-optic crystal electric field sensor is used to measure a high-voltage direct-current electric field can be solved.

The utility model belongs to abrasive disc technical field especially relates to a kind of precision single-crystal corundum resin bond abrasive disc, including annular matrix, transition ring, positioning ring and mounting ring, transition ring, positioning ring and mounting ring are sequentially arranged from outside to inside at the center position of annular matrix, and the annular matrix is adhesively fixed with transition ring, the transition ring is adhesively fixed with positioning ring, the positioning ring is adhesively fixed with mounting ring;By setting chip removal groove and grinding groove, the chip generated during the grinding process of annular matrix to object can be effectively excluded, avoid the adverse effect of chip on grinding process, by setting multiple heat dissipation holes, the large amount of heat generated during the grinding process of annular matrix to object can be quickly dissipated, reduce the heating degree of the device during use, improve the service life of the device.

This utility model relates to the field of orthopedic fixation splint technology, and discloses a malleable thumb fracture fixation splint, including a finger mold. A protective pad is placed inside the finger mold. A silicone layer is fixedly disposed on the upper end of the protective pad. An odor-removing layer is fixedly connected to the lower end of the silicone layer. A cooling gel layer is fixedly connected to the lower end of the odor-removing layer. Two mounting plates are fixedly disposed on one side of the finger mold. Triangular locking blocks are fixedly disposed on one side of the two mounting plates. Connecting pins are rotatably disposed inside one side of the two mounting plates. Buckles are rotatably disposed on the outer walls of the two connecting pins. In this utility model, the splint allows for quick replacement of the protective pad, reduces the temperature around the thumb, alleviates the patient's thumb's stuffiness, and facilitates quick putting on and taking off by medical staff or patients. It prevents the device from falling off or shifting during patient activity, thus avoiding secondary injury.

The utility model belongs to the technical field of injection molding, particularly relates to an injection mold capable of circularly cooling, and provides the following scheme aiming at the problems of uneven temperature, aggravated plastic part shrinkage and warping, insufficient heat dissipation structure efficiency, difficulty in continuous cooling and the like caused by a single cooling path of the traditional injection mold in the prior art: the injection mold comprises a lower mold and an upper mold, the upper mold is arranged above the lower mold, the upper mold and the lower mold are in sliding fit through a plurality of guide rods fixedly installed at the top of the lower mold, corresponding forming grooves are formed in the sides, close to each other, of the lower mold and the upper mold, and a material injection hole is formed in the upper mold in a penetrating mode. According to the injection mold, through the built-in first heat conduction pipe and the circulating cooling assembly, rapid and accurate temperature control of the mold can be achieved, and the product quality and the forming efficiency are remarkably improved; and by adopting a closed circulation design and a double-mold independent heat conduction structure, the upper mold and the lower mold can still maintain efficient heat dissipation in a mold splitting state, and the process continuity is guaranteed.

The application relates to a total station packaging box antistatic hard material and a preparation method thereof, and belongs to the technical field of high polymer materials; the total station packaging box antistatic hard material is prepared by taking ABS resin, an antioxidant, a lubricant, an initiator and a self-prepared permanent antistatic agent as raw materials; the permanent antistatic agent prepared by the application can not only provide good antistatic performance, but also good flame retardance; the permanent antistatic agent of the application has good compatibility with the ABS resin; the permanent antistatic agent of the application will not cause the mechanical performance of the ABS resin group to decrease; and finally, the total station packaging box antistatic hard material prepared has good flame retardance, antistatic performance and impact toughness.

The utility model discloses an intelligent weeding robot, which relates to the field of weeding robots and comprises a weeding structure arranged at the bottom of a rack, the weeding structure consists of an adjustable support and a laser weeding structure, and the laser weeding structure comprises a pumping laser transmitter, a heat dissipation structure and a high-definition camera. A heat dissipation structure adopts the design of a hollow shell, a heat dissipation fin group and a micro circulating pump, and cooling liquid circulation is combined with a barb-shaped auxiliary heat dissipation sheet, so that the laser can efficiently dissipate heat and stably operate for a long time; a walking structure, a control device and a machine cover with a GPS antenna and a shadowless lamp are arranged on the machine frame, a protection plate and a steering engine drive walking wheel are arranged on the machine frame, an obstacle avoidance radar is arranged on a hub motor shaft, and the laser radar, the shadowless lamp, the GPS antenna and the like are electrically connected with a PLC to achieve intelligent control. Soil disturbance is avoided through laser precise weeding, the reliability of equipment is improved through a heat dissipation structure, the recognition precision is improved through a high-definition camera, and the autonomy of GPS navigation and obstacle avoidance functions is enhanced.

The utility model relates to the technical field of food heat preservation, and discloses a heat preservation catering box which comprises an outer box and a box cover located at the upper end of the outer box, an inner box is arranged in the outer box and comprises an inner box body, a plurality of air bag frames are arranged in the inner box body in a sliding mode, air bags are installed on the inner sides of the air bag frames, and the air bags are arranged in the inner box body. An inflation nozzle and a deflation nozzle are installed at the upper end of the outer side of the air bag frame, and a plurality of sets of limiting blocks are fixedly connected to the position, close to the outer side of the air bag frame, of the inner side wall of the inner box body. According to the utility model, the inner box is placed in the outer box, and food is placed in the inner box, so that the heat of the food can be preserved; the interior of the inner box body can be divided into a plurality of small grids through the air bag frame and the air bag in the inner box, so that different foods can be placed, and the foods are prevented from being crossed and tainted by other odors; the food can be pressed after the air bag is inflated and expanded, so that the food is prevented from shifting or overturning in the transportation process, and the food transportation safety is improved.

The application discloses a kind of pepper extract emulsion and its preparation method and application.The emulsion is composed of pepper extract, wintergreen oil, ethylene glycol, antifoaming agent, emulsifier, pepper extract, ultrapure water and the like, and the process comprises the following steps: (1) preparation of dry chili powder; (2) preparation of pepper extract; (3) concentration of pepper extract; (4) preparation of pepper extract diluent; (5) preparation of emulsion.The method is simple and easy to operate, and the process is stable and feasible.The prepared pepper extract emulsion is stable, and has good control effect on Chinese medicinal material red mite pests.

The utility model discloses a kind of based on integrated air duct type heat dissipation assembly, including heat dissipation pedestal, first heat dissipation fin being set on the heat dissipation pedestal, second heat dissipation fin and third heat dissipation fin respectively being set on the both sides of the heat dissipation pedestal, and heat conduction plate being installed on the heat dissipation pedestal;Mounting groove is opened on the heat dissipation pedestal away from the side of the first heat dissipation fin, and the heat conduction plate is installed on the mounting groove;The cross-sectional shape of the heat dissipation pedestal is V-shaped arrangement;The heat dissipation assembly based on integrated air duct type further includes heat dissipation channel being set in the heat dissipation pedestal;The heat dissipation assembly based on integrated air duct type of the utility model, first heat dissipation fin, second heat dissipation fin and third heat dissipation fin are respectively arranged at different positions of heat dissipation pedestal, increase heat dissipation surface area, so that heat can be quickly lost to surrounding environment by air convection, increase heat dissipation effect.

The application discloses a kind of plasma arc welding equipment with smoking function for medical instrument processing, it is related to medical instrument welding relevant technical field, in traditional technology, for the welding process of medical instrument with smoking function, gas is ejected from welding site, gas will quickly drift away from welding site, thus causing gas waste, and in the welding process, high-temperature welding slag produced will also be blown by gas and splash, easily hurt operator;And the device forms a semi-closed welding area by the protective shell main body in the protection mechanism and the movable protective shell, forces the inert or active gas ejected by welding module to slowly dissipate from both ends, rather than quickly drift away, greatly reduces gas consumption, optimizes gas utilization rate, limits welding slag inside the protective shell, this closed environment avoids the harm of welding slag splashing to operator, especially when high-frequency welding medical instrument, reduces safety risk.

This invention relates to the field of sintering furnace insulation technology, specifically providing a bell-shaped sintering furnace insulation barrel that improves temperature field uniformity. The barrel includes a base, an inner cylinder, an insulation layer, and an outer cylinder. The inner cylinder comprises an inverted body and a bottom. An upper cover plate is provided at the upper end of the insulation layer, and a top cover plate is provided at the upper end of the outer cylinder. A compression gap exists between the upper and top cover plates. The upper cover plate includes a guide pin and a compression spring assembly. The insulation layer comprises side carbon paper and carbon felt layers wrapped around the outer wall of the cylinder body and a top carbon paper and carbon felt layer wrapped around the outer end face of the bottom of the cylinder. The top carbon paper and carbon felt layer is formed by folding upwards from the folded layers in the side carbon paper and carbon felt layers. A cylindrical thickened insulation body is laid between adjacent top carbon paper and carbon felt layers. When the insulation barrel expands due to high temperature and pressure, the compression spring assembly provides compression to ensure temperature uniformity in the furnace and improves the insulation performance of the sintering furnace insulation barrel.

The application provides a server memory test method and system. The method comprises the following steps: formulating a layout scheme of server memory test based on a first condition and a second condition; and deploying a test area according to the layout scheme, wherein the first condition comprises an air intake / exhaust amount of the test area, and the second condition comprises a space pressure value of the test area. The server memory test method and system can layout the space of memory test through the air intake / exhaust amount and the space pressure value of the test area, avoid heat backflow, quickly dissipate the heat energy of the server test area, meet the cooling demand during the server memory test, eliminate the overheated points, and solve the temperature problem of the server memory test area.

This invention relates to a bending method for wave-shifting optical fibers, comprising the following steps: Step 1, installing wave-shifting optical fibers side-by-side on an optical fiber bending bracket and pressing the fibers together; Step 2, placing the bending bracket containing the optical fibers onto a bending mechanism, which lowers the bracket into a constant-temperature water tank at 85 degrees Celsius for immersion; Step 3, bending the two bending plates of the bending bracket upwards relative to each other using the bending mechanism, ensuring the flat portion remains submerged in the constant-temperature water tank during bending; Step 4, raising the bent bracket to a position above the water surface using the bending mechanism, then cooling the bracket with a blower, and finally removing the bracket to complete the wave-shifting optical fiber bending operation; using a bending device to automatically bend the wave-shifting optical fibers on the bending bracket within a constant-temperature water tank ensures effective bending of the wave-shifting optical fibers.