9results about How to "Accelerate solidification" patented technology

One aspect of the present invention is to provide a method for manufacturing a galvanized alloy steel sheet. The method may include the following steps: preparing a base steel sheet; immersing the base steel sheet in a Zn-based plating bath containing Al and Mg for plating; adjusting the plating adhesion amount of the base steel sheet; and spraying a cooling composition onto the steel sheet droplets with the adjusted plating adhesion amount for cooling, wherein the cooling composition may contain: 0.1-10.0% by weight of urea; and the balance being water.

The shield engineering system comprises a first continuous conveying system, a second continuous conveying system, a second material processing system, a third continuous conveying system and an injection auxiliary system. The first material on the carrier is moved from outside the tunnel to inside the tunnel by the traction rope of the first continuous conveying system. The second material in a fluid state on the belt is moved from inside the tunnel to the pool outside the tunnel by the second continuous conveying system. The second material processing system is used for separating solid material and liquid material in the second material. The third continuous conveying system is used for continuously conveying or uninterruptedly conveying the second material in the pool to the second material processing system. The injection auxiliary system is used for injecting the third material in a fluid state into the surrounding rock and the segment gap of the tunnel. In the shield engineering system, the construction period of the shield construction in the tunnel is greatly shortened, the efficiency of the shield construction in the tunnel is improved, and the cost of the shield construction in the tunnel is reduced.

The invention provides a high-temperature steam output system based on a gradient porous solid waste-based composite phase change material. The high-temperature steam output system comprises a steam generator, a high-temperature steam conveying pipeline, a phase change device, a condenser and a steam outlet which are sequentially arranged in the flowing direction of steam. The salt storage tank is connected with the condenser; the phase change device comprises a shell and a phase change body, the phase change body is arranged in the shell and comprises a carrier and a filling body, the carrier wraps the filling body and adopts modified phosphogypsum or a coal-based solid waste cementing material as a base body, and the porosity of the carrier is decreased in a gradient mode in the direction from the steam generator to the condenser. The filling body is formed by compounding a phase change material and a graphene nanosheet. According to the system, modified ardealite or a coal-based solid waste cementing material is used as a matrix, forming is carried out at low temperature through a cold sintering technology, high-temperature phase change damage is avoided, negative gradient pore structure design is innovatively adopted, and the heat transfer rate is remarkably increased.

This invention provides a method for capping the tail section of a high-manganese steel continuous casting billet, comprising the following steps: before stopping casting, reducing the casting speed from the reference speed to a first speed and maintaining the first speed stable; reducing the first speed to a second speed, and after the second speed stabilizes, performing slag removal from the crystallizer surface; canceling the light pressing function, reducing the cooling water flow rate of the wide face of the crystallizer from the first cooling water flow rate to the second cooling water flow rate, while locking the cooling water volume of the secondary cooling zone to a constant value; after reducing the second speed to a third speed, removing the submersible nozzle and adding cooling components to the crystallizer; after the tail section of the billet moves out of the crystallizer, detecting the recessed area formed at the tail section of the billet; after the tail section is capped, gradually increasing the third speed to the target speed until the tail section is completely drawn out of the fan-shaped segment; wherein, the target speed is 1.0–1.2 m / min. This invention has simple steps, is easy to operate, and has low production costs.

The utility model provides a mould is used in bluetooth headset shell production relates to bluetooth headset technical field, including fixed base, the upside of fixed base is provided with headset shell production subassembly, the inside of fixed base is provided with the sliding slot, the lower side inside end of pouring inner bag is connected with the jacking rubber film, the downside of jacking rubber film is connected with the gas rod, the downside of gas rod is connected with the gas inlet pipe, through setting up headset shell production subassembly when pouring is completed and solidifies, through the gas inlet pipe injects gas to the gas rod, along with the gas rod upwardly lifts, the jacking rubber film will pour the headset shell in the inner bag and eject, realizes the quick stripping, and will extrude the shaping block and insert the inside of pouring inner bag through the upper cap, at this moment, the plastic solution is injected into the gap of pouring inner bag and extrusion shaping block through the glue injection port, and the air is discharged through the exhaust port, ensure that the plastic solution evenly fills, after cooling solidification, extrusion shaping block and headset shell are closely combined.

The utility model belongs to antirust technical field, concretely speaking it is a motorcycle axle antirust treatment device, including device main part, the device main part inner wall is fixed with horizontal plate, the horizontal plate bottom is fixed with U type board, the U type board bottom is connected with the shower nozzle through, the U type board is connected with the oil pipe through, the oil pipe and horizontal plate are the sliding relation, the device main part side wall is fixed with motor, the output of motor is installed with three jaw chuck, the device main part inner wall is fixed with U type post, three jaw chuck is in U type post, and thus the input antirust oil of shower nozzle is received oil pipe to even spray antirust oil to the motorcycle axle in rotation, and U type post can block the motorcycle axle and the surface antirust oil splashing.

This invention discloses a trenchless removal device and method for abandoned pipelines. A vibrating device and a grouting pipe are installed on an electric trolley. Before removal, the trolley vibrates the abandoned pipeline back and forth to reduce the density of the surrounding soil, facilitating removal. Before grouting, an air bladder is inflated so that it abuts against the inner wall of the abandoned pipeline, sealing the gap between the grouting pipe and the abandoned pipeline to prevent concrete from flowing back into the abandoned pipeline during grouting. Grouting is performed simultaneously with pipeline removal, promptly filling the voids left after removal. The concrete solidifies rapidly after flowing out of the grouting pipe, minimizing ground settlement. This construction method efficiently removes underground pipelines, completing the removal and grouting processes in one operation, offering advantages such as high safety and efficiency.

This invention relates to the field of laser cutting technology and discloses a laser cutting device for copper plates used in copper crafts processing. The device includes a laser cutting machine housing and a laser cutting head. Y-axis linear motors are mounted on both sides of the top of the laser cutting machine housing, and a portal frame is positioned between the Y-axis linear motors. An X-axis linear motor is fixed to one side of the top beam of the portal frame. The laser cutting head is fixed to one end of the slide. A fixing ring is fixed to the lower half of the outer wall of the laser cutting head, and an external gear ring is fixed to the outside of the fixing ring. This invention achieves a 360° adjustable preheating and rapid cooling mechanism around the laser cutting head, allowing it to follow the cutting direction of the laser cutting head in real time. This ensures that the electric heating plate always precisely covers the area to be cut, and the hollow water-cooled housing always precisely covers the cutting area, achieving seamless integration of preheating, cutting, and rapid cooling. This maximizes the effects of preheating and rapid cooling, further improving cutting accuracy and cut quality.

The application provides a hemostatic material and a preparation method thereof. The preparation raw material of the hemostatic material comprises gelatin and a natural polymer material, and the preparation process of the hemostatic material comprises the step of crushing gelatin gel in the presence of the natural polymer material; wherein the gelatin gel is obtained by gelation after cross-linking of the gelatin. The hemostatic material of the application comprises gelatin and a natural polymer material, and the gelatin gel is crushed in the presence of the natural polymer material, so that the particle size of the gel can be reduced, and finally the hemostatic material with good hemostatic effect is obtained.