13results about How to "Increase pulling speed" patented technology

The invention relates to the technical field of steelmaking continuous casting, and discloses a high-pulling-speed continuous casting method for a low-carbon high-sulfur steel chamfering crystallizer, a chamfering crystallizer continuous casting machine is adopted, and in the casting process, a low-carbon high-sulfur steel casting blank is prepared by controlling the narrow face taper, the narrow face cooling water flow and the casting superheat degree of the chamfering crystallizer. According to the method, the problems that when the low-carbon high-sulfur steel is cast through a chamfering crystallizer continuous casting machine, the narrow face of a casting blank is seriously sunken, and crack defects are prone to occurring can be solved.

The invention discloses a manufacturing method of a silicon steel continuous casting billet, which comprises the following steps: the thickness of a liquid slag layer of adopted casting powder is within 10-18mm, the viscosity of the casting powder is within 0.20-0.29 Pa.S, and the melting point is within 1000-1110 DEG C; the liquid level fluctuation of the molten steel is kept within + / -3mm; and the secondary cooling area is cooled by adopting a process system that the cooling water amount is sequentially reduced in the casting blank drawing direction. According to the method, parameters such as the thickness of a casting powder liquid slag layer, the viscosity of the casting powder, the melting point, the superheat degree of tundish molten steel, stirring current and the like are controlled, and a secondary cooling area is divided into a high-temperature strong cooling process system and a low-temperature weak cooling process system in the throwing direction for cooling. And silicon steel production has the characteristics of high pulling speed, few defects, high equiaxed crystal rate, high casting blank temperature and the like.

The invention provides a double-channel partitioned water cooling screen and a single crystal growth device, and belongs to the field of single crystal growth equipment. The water cooling screen comprises an upper bottom plate, a lower bottom plate, an inner conical barrel, an outer conical barrel, a water inlet, a first water inlet pipe, a second water inlet pipe, a water outlet, a first water outlet, a second water outlet, a first group of annular flow channels and a second group of annular flow channels; wherein the water inlet and the water outlet are formed in the edge of the upper bottom plate; the upper bottom plate, the lower bottom plate, the inner conical barrel and the outer conical barrel form a single crystal cooling drawing space; a first group of annular runners is arranged at the lower part in the cooling and drawing space, and a second group of annular runners is arranged at the upper part in the cooling and drawing space; the lowest part of the lowest runner of the first group of annular runners is communicated with the first water inlet pipe, and the highest part of the uppermost runner is communicated with the first water outlet pipe; the lowest part of the lowest runner of the second group of annular runners is communicated with the second water inlet pipe, and the highest part of the uppermost runner is communicated with the second water outlet pipe. According to the invention, the production energy consumption is reduced, the temperature controllability is improved, and the production yield and the production efficiency are improved.

The utility model relates to the technical field of wafer processing, in particular to an automatic wafer traction mechanism for a gas cleaning machine, which comprises a limiting pressing plate, a traction plate and a support, a lifting type connecting piece is arranged on one side of the outer wall of the limiting pressing plate, and a horizontal liquid rod is arranged on the other side of the lifting type connecting piece. A vertical plate is installed at one end of the outer side of the horizontal liquid rod, a traction plate is arranged on the outer side of the bottom of the vertical plate, a support is installed at the bottom of the traction plate, an external connection frame is installed on the outer side of the support, a limiting plate is installed on the other side of the external connection frame, a push plate is arranged on the outer side of the bottom of the limiting plate, and an embedded groove is formed in the inner side of the traction plate. A movable pressing rod is mounted in the embedded groove; according to the wafer traction mechanism, the problems that in the prior art, most of existing wafer traction mechanisms adopt pushing structures to push wafers to cleaning positions, but the wafers need to be pushed out again after cleaning, the whole traction process is tedious, the pushing structures cannot be synchronized, and the collision risk is increased are solved.

The invention provides a method for increasing the pulling speed of a single crystal, which comprises the following steps: in the pulling process of the single crystal, keeping the position of a guide cylinder unchanged, setting a distance between the bottom of a water-cooling inner guide and the bottom of the guide cylinder in the working steps of melting, temperature stabilization, seeding, shoulder expansion and shoulder rotation, keeping the distance unchanged, and moving the water-cooling inner guide downwards in the working step of equal diameter, and the bottom of the water-cooling inner guide is contacted with the bottom of the guide cylinder. The device has the beneficial effects that through relative movement of the water-cooling inner sleeve and the guide cylinder, the distance between the water-cooling inner sleeve and a solid-liquid interface is reduced, the temperature gradient of a single crystal growth environment is improved, the single crystal pulling speed is increased, and the yield of the single crystal furnace is improved.

The invention relates to the technical field of square billet bulging treatment, in particular to a high-pulling-speed square billet secondary cooling water distribution method and system.The method comprises the steps that water pipelines are arranged on the left side, the right side, the inner arc and the outer arc of a square billet respectively, and the water pipelines on the left side and the right side are combined; a cooling area where the square billet passes through is divided into five parts, the water flow of the inner arc pipeline serves as the reference, and the water flow ratio of the inner arc pipeline to the outer arc pipeline of each cooling area, the water flow ratio of the inner arc pipeline to the combined pipelines on the two sides and the total flow of each cooling area are set; and the bulging amount of the square billet at different pulling speeds is smaller than a set threshold value. By controlling the water flow ratio of the square billet in the inner arcs to the outer arcs and the inner arcs to the sides of the five cooling areas and the total water flow of the five cooling areas, the bulging problem of the square billet is solved.

The application provides a front and rear and lifting adjustable calender glass baffle device, which is installed on both sides of a calender glass overflow port and comprises a lifting baffle assembly, which is installed at both ends of a lip brick in a front and rear adjustable mode; and a sealing brick group, which is installed at both ends of a tail brick and follows the displacement of the lifting baffle assembly. The lifting baffle assembly is installed with a waist-shaped hole in the base, so that the lifting baffle assembly can move up and down and front and rear on the calender to freely adjust the position of the calender to balance the temperature of the upper and lower calender rollers and keep the distance between the lower calender roller and the lip brick. The front and rear expansion of the sealing brick group can compensate the gap caused by the front and rear movement of the lifting baffle assembly, prevent the overflow of glass liquid between the baffle assembly and the sealing brick group, and solve the problem of the unbalanced temperature of the upper and lower calender rollers in the calender glass production process.

The invention discloses a high-temperature hot delivery control method for a continuous casting square billet, relates to a steelmaking continuous casting technology, and provides the scheme aiming at the problem that in the prior art, the hot delivery crack defect of the casting billet is easily generated. Comprising the following steps of increasing the pulling speed, optimizing the secondary cooling strength of a casting blank, improving continuous casting covering slag, improving a blank moving mode and increasing the casting blank charging speed, wherein a blank moving trolley and a hot conveying roller bed motor are accelerated. The method has the advantages that the charging temperature of the continuous casting square billet hot delivery steel billet is increased to be larger than or equal to 850 DEG C through technical measures such as production process adjustment of the continuous casting small square billet, pulling speed increase, secondary cooling strength optimization, heat preservation of the conveying roller way, hot delivery assembly square billet optimization and speed increase matching of the conveying roller way. And the heating temperature of the steel billet in the steel rolling heating furnace is reduced, so that the coal gas consumption is reduced, and the energy is saved. The defect of casting blank red-feeding cracks can be effectively overcome, and gas consumption of a steel rolling heating furnace is reduced.

The cable winding and unwinding device for the electric power engineering comprises a base, limiting plates are fixedly connected to the two sides of the base, a winding shaft is rotationally connected between the two limiting plates, the output end of a forward and reverse motor penetrates to the inner sides of the limiting plates and is fixedly connected to the end of the winding shaft, and a damping assembly is detachably connected with universal wheels. The base is fixedly connected with an installation frame, the top of the installation frame is provided with a handle, the inner side of the installation frame is rotatably connected with a guide rod, a movable rod is arranged above the guide rod, and the top of the inner side of the installation frame is provided with a lifting piece used for adjusting the height of the movable rod. According to the cable take-up and pay-off device for the electric power engineering, time and labor are saved, the cable can be rapidly and smoothly pulled, the cable is prevented from being damaged in the moving process, the service life of the cable is prolonged, shaking force borne by the cable take-up and pay-off device for the electric power engineering when moving on an irregular road surface can be buffered, and the cable placement stability is improved.

The utility model belongs to pipe belt machine technical field, concretely relates to a pipe belt machine truss and pipe belt machine, including truss body and set up a plurality of support frame on truss body, each support frame sets up the roller mechanism, each roller mechanism has a plurality of the roller that can rotate around own axis line and the passage that is used for the pipe belt machine's conveyor belt to pass through and is formed between a plurality of rollers, the truss still includes a plurality of limiting mechanisms that set up on the truss body, each limiting mechanism forms the limiting hole for limiting the activity of traction rope, so that when traction rope pulls the conveyor belt, traction rope is located in the limiting hole, further make traction rope pass through the passage when away from the roller, the utility model in the process that traction rope pulls the conveyor belt, traction rope is limited in the limiting hole, so that in the traction process, traction rope and equipment always keep a certain distance, traction rope is away from the roller and truss body, can avoid traction rope to damage the surface of roller, need not manual intervention, greatly improve traction rate.

The invention discloses a continuous feeding system for crystal pulling growth, and relates to the technical field of feeding devices for crystal pulling growth. In order to solve the problem that the feeding device in the prior art can realize the addition of molten material, but the molten material also needs an external heating device, which will consume a lot of energy, and the added melt entering during growth is likely to cause fluctuations in the melt in the crucible, thereby affecting the effect of growing crystals, a heating mechanism is arranged inside the growth furnace shell, an upper heating mechanism is arranged at the upper end of the heating mechanism, a feeding tank is arranged outside the upper heating mechanism, a crucible is arranged inside the upper heating mechanism, three melt feeding pipes are arranged in an annular shape at the bottom end of the crucible, three melt siphon pipes are arranged in an annular shape inside the feeding tank, the lower end of the melt siphon pipe is sealed and connected with a feed pipe, and one end of the feed pipe is sealed and connected to the bottom of the melt feeding pipe through a current limiting mechanism.

The utility model discloses a vibration table of a crystallizer. The vibration table comprises a fixed frame; the vibration platform is arranged on the fixed frame, and the top of the vibration platform is connected with the crystallizer; the vibrating mechanism comprises a servo hydraulic cylinder, a main connecting rod, a fixing shaft and a supporting rod, one end of the main connecting rod is in transmission connection with the servo hydraulic cylinder, the other end of the main connecting rod is arranged on the fixing shaft in a sleeving mode, the two ends of the fixing shaft are fixed to the two sides of the fixing frame in a penetrating mode, and one end of the supporting rod is arranged in the middle of the main connecting rod; the other end of the supporting rod is fixedly connected with the top of the vibration platform; the number of the balancing rods is multiple, each balancing rod comprises a rod part, fastening blocks and a fixing block, and the two fastening blocks are arranged at the two ends of the rod part. Through the structure, the main connecting rod can be used for directly transferring force to apply a vibration effect on the vibration platform, the vibration inertia is small, and the balance rods are arranged to avoid vibration deviation.

The invention relates to the technical field of wafer manufacturing equipment, in particular to a heat shield radiation device for improving the crystallization rate of heavily doped red phosphorus single crystals, which comprises a support ring, an upper heat insulation material mounted at the top of the support ring, and an outer heat shield assembly mounted at the bottom of the support ring, the outer heat shield assembly comprises a heat shield outer cover and a heat shield inner cover, the heat shield outer cover and the heat shield inner cover are both of an annular structure and are connected with each other, a cavity is formed between the inner cover and the outer cover, and the cavity is filled with an inner heat insulation material; the heat shield inner cover is composed of an inner upper cover, an inner lower cover and an inner upper molybdenum cylinder, the inner upper cover and the inner upper molybdenum cylinder are both of a V-shaped structure, the inner upper molybdenum cylinder is arranged on the inner wall of the inner upper cover, and the inner lower cover is of a splayed structure and is in butt joint with the inner upper cover.