13results about How to "Uniform cooling rate" patented technology

The utility model discloses a multistage gradient water-cooling quenching mechanism for aluminum profiles, which relates to the technical field of aluminum profile processing and comprises a side frame, a protective cover fixed on the side frame through screws, a multistage gradient quenching component, a quenching control component and a water-cooling circulating component. According to the utility model, the multi-stage gradient quenching assembly is arranged, the flow speed of cooling water of each stage of cooling unit is accurately controlled, and controllable gradient cooling is realized, so that the cooling speed of each part of the aluminum profile tends to be consistent, the deformation stress generated by non-uniform cooling is effectively reduced, and the dimensional accuracy and the surface quality of the aluminum profile are improved; according to the equipment, the temperature change of the aluminum profile can be monitored in real time through the infrared temperature sensor, data are fed back to the control box, the control box automatically adjusts the flow speed of cooling water according to a preset temperature-flow speed curve, automatic and precise control over the cooling process is achieved, and the production efficiency and the stability of the product quality are improved.

The invention relates to the technical field of model prediction control, in particular to a cooling capacity balanced cooling control method and system for toothbrush injection molding, and the method comprises the steps: calculating a first cooling rate compensation coefficient of the upper and lower surfaces of a mold according to the area difference between the contact area of an upper mold and the contact area of a lower mold of a toothbrush; heat conduction parameters of the upper die and the lower die are collected; calculating a second cooling rate compensation coefficient of the upper and lower surfaces of the mold based on the obtained heat conduction parameters; and inputting the temperature of the cooling liquid, the flow velocity of the upper mold cooling fluid, the first cooling rate compensation coefficient and the second cooling rate compensation coefficient into a pre-constructed lower mold cooling flow velocity prediction model, and outputting the flow velocity of the lower mold cooling fluid. The prediction model is introduced to calculate the optimal flow velocity of the lower die under the condition that the reference flow velocity of the upper die and the temperature of the cooling liquid are given, in this way, the cooling rates of the upper surface and the lower surface tend to be consistent, and section temperature difference and shrinkage difference caused by non-synchronous solidification are avoided.

The utility model relates to the technical field of metal quenching, and solves the problems that when a metal workpiece is quenched, the metal workpiece is always positioned at the bottom of a cooling tank and does not change in any position, so that the cooling rates of the surface of the metal workpiece are inconsistent, and the metal workpiece is easy to deform. The anti-deformation metal quenching cooling tank structure comprises a quenching frame, a mounting groove is formed in one side of the interior of the quenching frame, an arc-shaped cover for enlarging the internal space is fixedly mounted in the mounting groove, a storage frame for storage is fixedly mounted on one side of the front face of the quenching frame, and a servo motor is fixedly mounted on one side of the surface of the quenching frame. A placing assembly is fixedly installed at the output end of the servo motor and comprises a rotating rod fixedly installed at the output end of the servo motor, a placing frame is fixedly installed at one end of the rotating rod, electric push rods are fixedly installed on the two sides of the interior of the placing frame, and clamping plates are fixedly installed at one ends of the electric push rods.

The utility model belongs to the technical field of heating furnaces for preparing and storing hydrogen materials, and particularly discloses a cooling and stirring structure of a heating furnace for preparing and storing hydrogen materials, which comprises a cooling fan arranged outside a heating furnace body and a cooling component positioned in the heating furnace body, and the cooling fan is communicated with the cooling component through an air inlet pipe; a supporting assembly is arranged on the outer side of the air inlet pipe and connected with the cooling assembly, an air cylinder is arranged at the top of the heating furnace body, and the output end of the air cylinder is connected with the supporting assembly and used for driving the cooling assembly to move vertically. The cooling assembly is arranged in the heating furnace body, the cooling assembly is communicated with the external cooling fan to further cool a melt-spinning sheet falling off from the cooling roller in an accelerated mode, the air cylinder is connected with the cooling assembly, ascending and descending of the cooling assembly are achieved, and the melt-spinning sheet is crushed and stirred. The specific surface area of the material is greatly increased, the surface sites of the hydrogen storage material for adsorbing hydrogen are increased, and the hydrogen storage efficiency is effectively improved.

The utility model relates to a well type quenching cooling device, which comprises a well type rack, a lifting appliance, a rotating device and an external spraying system, the rotating device is arranged at the top of the well type rack, the external spraying system comprises an external pipeline and external spraying nozzles, the external spraying nozzles are uniformly arranged on the external pipeline along the circumferential direction and the axial direction of the well type rack, and the external spraying nozzles are arranged on the external pipeline. The outer pipeline is externally connected with a water supply system, the lifting appliance is used for fixing a quenching workpiece to suspend the quenching workpiece in the middle of the well type rack, and the lifting appliance is supported on the rotating device and is driven by the rotating device to rotate. According to the utility model, the quenching workpiece can rotate in the well type rack, the spraying dead angle is eliminated, the spraying amount received by the workpiece in the circumferential direction is uniform, the cooling speed is consistent, and the phenomenon that the quality and the performance of the steel pipe are seriously influenced by deformation bending or local cracking of the quenching or cooling steel pipe is greatly reduced or eliminated.

The utility model discloses a novel quench machining tool, which relates to the technical field of quench machining tools, and comprises a base and a support frame arranged at the upper end of the base, a base is arranged in the base, a second mounting plate is arranged on the base, a quench mechanism is arranged at the upper end of the base, and the quench mechanism is positioned at the bottom end of the support frame. A cooling mechanism and a positioning mechanism are mounted on the support frame; through cooperation of the cooling mechanism and the auxiliary mechanism, a cooling medium can be conveniently and rapidly transferred, and a valve is independently installed at each water outlet, so that cooling along with the quenching position of a machined part is facilitated, the cooling speed of the workpiece is consistent, and the problems of hardness difference and deformation of the machined part are avoided; through cooperation of a moving assembly and a second lead screw, the quenching position and the cooling position can be moved at will according to the quenching requirement, and then the quenching effect is improved; finally, the problems of deformation of machined parts and inflexible movement of a quenching device caused by unreasonable design of an existing machine tool cooling system are solved.

The present application relates to the technical field of metal material heat treatment, in particular to a heat treatment furnace device and method capable of controlling temperature and cooling speed, wherein the furnace body is internally constituted as a hearth, the output end of the air supply system is located at the lower region of the hearth through the furnace body; the flow equalizing system is arranged at the lower region of the hearth and is in communication with the output end of the air supply system; the workpiece is placed on the flow equalizing system; the circulation and exhaust system is arranged at the upper region of the hearth and is in communication with the interior of the hearth, the temperature monitoring system is arranged on the circulation and exhaust system and is directly above the workpiece; the control system is electrically connected with the air supply system, the circulation and exhaust system and the temperature monitoring system. The present application effectively solves the problems of insufficient cooling speed and poor cooling uniformity in the prior art.

The utility model provides a mold processing device for mechanical casting, which relates to the technical field of mold processing and comprises a casting mechanism and a heat exchange mechanism. According to the utility model, when cooling water is accurately injected into the heat exchange tank through the water inlet valve, the cooling water rotates at a high speed through the rotating blade, the pushing rotating shaft and the mixing paddle, so that the cooling water sufficiently exchanges heat with the hot water pipe, waste heat conducted by the mold is quickly absorbed, and the extreme temperature difference between the initial cooling water and the mold is greatly reduced; then preheated cooling water enters the mold core through the cold water pipe, the temperature of the cooling water is in gradient matching with the surface layer of the mold, stable heat absorption is achieved, the heated cooling water flows back to the heat exchange tank through the hot water pipe, gradient preheating is continuously provided for subsequent cooling water, and the dynamic heat balance mechanism ensures that the cooling rates of all parts of the mold are consistent; the cracking and deformation risks caused by thermal stress are remarkably reduced, the service life of the mold is prolonged, and the casting precision is improved.

This utility model relates to the field of plastic pipe manufacturing technology, specifically a vacuum shaping water tank for plastic pipes. It includes a tank body, a support frame located at the bottom of the tank body, an adjustment mechanism, a circulating heat dissipation mechanism, and a sizing sleeve. The adjustment mechanism is located inside the tank body; the circulating heat dissipation mechanism is located outside the tank body; a sliding ring is rotatably mounted on the side of the sizing sleeve, and a straight slide rail is slidably mounted on the side of the sliding ring. Through the adjustment mechanism, rotating the threaded rod moves the sliding ring to the end of the pipe for installation, thus adapting to pipes of different sizes. During spray cooling, the pipe rotates within the tank body, allowing for better fit between the sizing sleeve and both ends of the pipe, ensuring uniform shaping pressure throughout the pipe's length. Simultaneously, the circulating rotation of the pipe ensures that all parts of the pipe are fully in contact with the cooling water, achieving uniform cooling.

The utility model discloses an aluminum alloy die-casting forming auxiliary structure, and relates to the technical field of aluminum alloy die-casting forming, the aluminum alloy die-casting forming auxiliary structure comprises a die-casting die mechanism, the die-casting die mechanism is composed of a fixed die assembly and a movable die assembly, temperature control mechanisms are installed in the fixed die assembly and the movable die assembly, and each temperature control mechanism comprises a liquid inlet main pipe. The liquid inlet amount of cooling liquid is flexibly adjusted according to detection data of the temperature sensor, the temperature sensor is installed on the lower portion of the adjusting branch pipe, the temperature of the cooling liquid after heat absorption can be monitored in real time, and when the local temperature of the die-casting die mechanism is too high, the temperature of the cooling liquid in the corresponding adjusting branch pipe rises, the temperature sensor feeds back data, and the control valve reduces the liquid inlet amount. And on the contrary, the liquid inlet amount is increased, so that the cooling speed and the temperature of the fixed mold assembly, the movable mold assembly and raw materials in the fixed mold assembly are kept uniform, and the problems of inconsistent aluminum alloy solidification speed and poor structure property caused by non-uniform mold temperature are effectively avoided.

The utility model relates to a kind of circulation cooling automatic feeding and discharging structure, including protective shell, the front end lower side of protective shell is equipped with front support frame, the upper end of front support frame is equipped with feeding box, the front end upper side of feeding box is equipped with feeding port, the rear end lower side of protective shell is equipped with rear support frame, the rear side lower end of rear support frame is equipped with discharge bevel, the protective shell is evenly divided into five working areas, and is first area, second area, third area, fourth area and fifth area respectively;The right side of protective shell is evenly equipped with protective door, the number of protective door corresponds with the number of working area, and metal mesh belt conveyor is equipped in protective shell, the front and rear side of metal mesh belt conveyor is projected protective shell, and the front and rear end of metal mesh belt conveyor is located on front support frame and rear support frame respectively, with efficient cooling and heating, improve processing efficiency, guide air baffle optimizes airflow, ensure the advantages that processing quality is uniform.

This application relates to the field of cable protection pipe manufacturing technology, and discloses a method for preparing a steel-reinforced spiral cable protection pipe, comprising the following steps: mixing block copolymer polypropylene, ethylene-vinyl alcohol copolymer, hydroxyl-terminated highly branched polyester, ethylene-1-octene copolymer, microcrystalline wax, and electromagnetic rheology premixed masterbatch, and feeding the mixture into a co-rotating twin-screw extruder; injecting a crosslinking solution during extrusion to dynamically vulcanize the ethylene-1-octene copolymer, and extruding a composite melt; heating the surface of a corrugated galvanized steel strip using a medium-frequency induction heating coil, coating the heated galvanized steel strip surface with the composite melt and spirally winding it to obtain a preliminary pipe; introducing the preliminary pipe into a circulating water bath cooling tank with ultrasonic transducers for cooling and solidification, and then traction cutting to obtain a steel-reinforced spiral cable protection pipe. This invention improves the impact toughness, interfacial peel strength, and dimensional stability of the steel-reinforced spiral cable protection pipe.

The application belongs to the technical field of aluminum alloy casting, and particularly relates to a metal mold for aluminum alloy hardware casting, which comprises an upper mold base, a lower mold base, a cooling mechanism and a liquid changing mechanism. Through linkage and cooperation of the cooling unit and the liquid changing mechanism, the liquid cooling is sprayed through the liquid injection hole, and the temperature is uniformly extruded by the sealing plate, so that the temperature gradient of the traditional one-way water channel is eliminated, the mold cooling rate is consistent, the casting defects are effectively improved, the cooling efficiency is improved, the intelligent manufacturing production line demand is adapted, the automatic and rapid discharge of the heated cooling liquid is realized through the liquid changing column and the liquid changing pipe in the liquid changing mechanism, the through hole is arranged around the liquid injection hole, the heated cooling liquid is discharged quickly nearby, the contact time of the heated cooling liquid with the low-temperature cooling liquid is shortened, the automatic and rapid replacement of the heated cooling liquid is realized, the continuous supply of the low-temperature cooling liquid is ensured, the cooling stability is further improved, and the intelligent manufacturing efficient production is facilitated.