84 results about "Aluminium casting" patented technology

The invention provides an automobile display screen supporting aluminum casting frame plasma welding device, and belongs to the technical field of plasma welding, the automobile display screen supporting aluminum casting frame plasma welding device comprises a welding assembly, the welding assembly is configured to weld aluminum casting welding cracks and polish welding positions, and the welding assembly comprises a welding head used for welding; the sleeve is movably arranged outside the welding head; the telescopic devices are used for controlling the welding heads to move and are symmetrically arranged outside the sleeve; and the multiple sets of grinding assemblies are used for removing welding disintegrating slag and symmetrically arranged at the bottom of the sleeve, and the welding heads are arranged in the multiple sets of grinding assemblies. The polishing assemblies are arranged on the two sides of the welding pipeline, the polishing assemblies can polish the welding position, and the welding head on the lower portion of the welding pipeline can weld cracks generated in the aluminum casting process.

The utility model discloses a cooling device for aluminum casting production, which comprises a base, a pair of bearing seats with bearings and a sliding rail are respectively arranged on the base, a screw rod is arranged between the bearing seats, the screw rod is driven by a motor, a threaded block is in threaded connection with the screw rod, the sliding rail is positioned below the screw rod, and the lower part of the threaded block is in sliding connection with the sliding rail. A working box body is arranged above the threaded block, the interior of the working box body is divided into a liquid cooling area and an air cooling area, cooling liquid is injected into the liquid cooling area, mounting plates are arranged on the left side wall and the right side wall in the air cooling area, and small fans are arranged on the mounting plates; a top plate is arranged at the tops of the stand columns, a large fan and a pair of telescopic rods are arranged at the bottom of the top plate, connecting rods are arranged at the ends of piston rods of the telescopic rods, and a filter plate is arranged between the connecting rods. The liquid cooling area and the air cooling area are arranged and can be switched, so that the aluminum casting is subjected to liquid cooling and then subjected to air cooling, the air drying speed of water spots can be increased, and the working efficiency is improved.

The invention discloses aluminum oxide foamed ceramic for casting and filtering molten aluminum and a preparation method of the aluminum oxide foamed ceramic, and belongs to the technical field of aluminum oxide ceramics. The method comprises the following steps: firstly, carrying out plasma activation on polyurethane foam, then immersing the polyurethane foam into a composite modifier system consisting of a main modifier, an auxiliary modifier and a catalyst, and sequentially carrying out first-stage grafting and second-stage cross-linking reaction to introduce carboxyl-hydroxyl composite functional groups and a heterocyclic cross-linking structure to the surface of the foam, so as to obtain a modified precursor; uniformly coating the precursor with aluminum oxide ceramic slurry by adopting a vacuum-pressure alternate impregnation method, and finally drying and sintering at high temperature to obtain a finished product. By constructing a strong interface bonding layer, the adhesion uniformity and firmness of ceramic slurry on an organic precursor are remarkably improved, the aluminum oxide foamed ceramic which is compact in framework, few in defect, high in mechanical strength, excellent in filtering performance and resistant to molten aluminum erosion is obtained, and the aluminum oxide foamed ceramic is suitable for molten liquid purification of high-end aluminum castings.

The utility model relates to the technical field of aluminum industrial production, in particular to a molten aluminum casting chute baffle. The molten aluminum casting chute baffle comprises a chute, a supporting frame, a guide rod, a first screw rod, a lifting plate, a baffle body, a first gear, a second gear, a motor, a lifting block and a protection assembly, the chute is used for guiding molten aluminum to move from one position to another position, and the supporting frame is installed on the outer side of the chute. The guide rod is connected to the left side in the supporting frame, the first screw is rotationally connected to the right side in the supporting frame, and the lifting plate is slidably connected into the supporting frame. Under the condition that a motor breaks down or is powered off, the height of the second gear can be adjusted to enable the second gear to be disengaged from the first gear, then the first screw is rotated through manual operation, the position of the baffle is adjusted, production continuity and safety are guaranteed, and the reliability and adaptability of the system are greatly enhanced through the design of the double modes (automatic / manual operation).

The application discloses a kind of safety automatic control flow's casting equipment, including melt pool, aluminium water inlet pool and pump chamber, melt pool is connected to aluminium water inlet pool by aluminium water channel in furnace, pump chamber is connected with aluminium water inlet pool by bottom inlet channel, impeller is provided in pump chamber, aluminium water outlet channel is connected with aluminium water steady flow pool above pump chamber, aluminium water steady flow pool bottom is provided with steady flow pool flow eye, steady flow pool flow eye is connected with outlet flow groove, steady flow pool flow eye outer end is provided by the plug head for plugging steady flow pool flow eye;Method, S1: melt raw material in melt pool, obtain aluminium water;S2: aluminium water flows into to pump chamber, then flows into to aluminium water steady flow pool;S3: aluminium water in aluminium water steady flow pool, flow into to outlet flow groove;S4: aluminium water in outlet flow groove flows into to corresponding aluminium piece casting tray, corresponding need to be manufactured aluminium piece can be obtained;Effect: method structure is novel, steady flow pool flow eye and melt pool are not directly communicated, increase insurance for aluminium casting safety, guarantee safety.

The utility model discloses a precise aluminum casting sand blasting and polishing device which comprises a sand blasting box, a pair of operation openings are formed in the front face of the sand blasting box, operation gloves are installed in the operation openings, a transparent cover is rotatably installed on the upper surface of the sand blasting box, a filter screen window is further installed on the outer side wall of the sand blasting box, and a sand box is installed on the back face of the sand blasting box. The sand box is connected with a sand pipe through a sand pump, the sand pipe penetrates into the sand blasting box and is connected with a nozzle, an air pipe further penetrates into the sand blasting box, the air pipe is communicated with the tail end of the nozzle through an air pump, and a separation net is further installed in the sand blasting box. According to the utility model, the sand blasting box and the operation gloves are arranged, so that the sand blasting operation on the precise aluminum casting can be carried out in the sand blasting box, and the sprayed abrasive material is left in the sand blasting box and is prevented from overflowing and scattering into the air, so that the sprayed abrasive material can be conveniently collected and treated, and the body health of operators can be protected.

The utility model discloses a multi-shaft hydraulic clamp for an aluminum casting cover piece. The multi-shaft hydraulic clamp comprises a base plate. The multiple sets of positioning pins are connected to the upper end of the base plate and arranged in the length direction of the base plate. The supporting tables are arranged in the length direction of the base plate, and the supporting tables and the positioning pins are arranged in a staggered mode. The telescopic assemblies are symmetrically connected to the two sides of the upper end of the base plate, the multiple telescopic assemblies are arranged in the length direction of the base plate, and the inner sides of the telescopic assemblies are connected with abutting heads acting on the side walls of workpieces. The clamping assembly is arranged on the side portion of the supporting table and connected with the upper end of the base plate, the clamping assembly comprises a clamping arm acting on the bottom of a workpiece, a cylinder base and a hinge arm, the hinge arm is connected with the free end of the cylinder base and drives the clamping arm to rotate, and the cylinder base is provided with a side plate. The clamp matched with the engine cover body is designed, and the engine cover body can be supported and well positioned in the machining process, so that the machining precision is guaranteed, and the efficiency is improved.

The invention relates to a spraying and cleaning integrated device for aluminum castings. The spraying and cleaning integrated device comprises a supporting mechanism, a cleaning mechanism and a blow-drying mechanism. The supporting mechanism comprises a supporting frame, a containing cavity and a rotating mechanism. The placing chamber is arranged on the support frame; the rotating mechanism comprises a rotating table and a driving device; the rotating table is rotationally arranged at the bottom in the containing cavity, and a clamp is arranged on the rotating table. The cleaning mechanism comprises a supporting frame body, a plurality of spraying heads and a driving part; the supporting frame is located on the upper portion in the containing cavity. The plurality of spraying heads are arranged on the lower surface of the supporting frame body, and the driving part is arranged on the outer wall of the placing cavity; the blow-drying mechanism comprises a fan and an air outlet frame body; the draught fan is arranged at the top of the containing cavity, the air outlet frame body is arranged on the inner wall of the top of the containing cavity, an air outlet is vertically formed in the air outlet frame body, and the air outlet directly faces the clamped workpiece on the rotating table. The aluminum casting cleaning and blow-drying device can achieve rapid treatment of spraying cleaning and blow-drying of the aluminum casting, and the aluminum casting does not need to be transferred in the midway.

The utility model discloses a plane milling device for aluminum casting machining, and relates to the technical field of aluminum casting machining devices. The device comprises a workbench, a placement seat, a fixed seat, a fixed plate and an electric telescopic rod, a clamping rod is fixed to one end of the sliding seat through a bolt, and a C-shaped groove is formed in the side, close to the containing seat, of the clamping rod. According to the utility model, the limiting mechanism is arranged; the working milling cutter can be driven to move through movement of the output end of the electric telescopic rod, so that plane milling is conducted on a workpiece, the two clamping rods are driven to move oppositely through mechanical transmission in the moving process of the output end of the electric telescopic rod, then the workpiece is clamped and fixed before being milled, the stability of the workpiece during milling is improved, and the working efficiency is improved. And compared with a traditional mode that a workpiece is limited through arrangement of multiple sets of power sources, the use cost of the device is reduced, and the workload of a user during device overhauling is reduced.

The invention relates to the technical field of conveying equipment, in particular to aluminum casting conveying equipment and method.The aluminum casting conveying equipment comprises a mounting rack, a conveying belt and a main control mechanism, the conveying belt is mounted on the mounting rack, and the main control mechanism is mounted on the mounting rack; the switching assembly comprises a pulley yoke, a connecting frame, a transfer placing frame, a position adjusting component, a butt joint component and a self-conduction component. The connecting frame is connected with the mounting rack through the position adjusting component, the pulley yoke is slidably mounted on the connecting frame, the transfer placing frame is connected with the pulley yoke through the butt joint component, the position adjusting component is connected with the mounting rack, the butt joint component is connected with the pulley yoke, and the self-conduction component is connected with the transfer placing frame. The actual conveying range of the conveying mechanism can be flexibly adjusted through arranged components, so that the conveying requirements under different conditions are met, and the conveying mechanism is more flexible and convenient in the actual conveying process.

The utility model discloses a cast aluminum low-pressure casting machine, and relates to the technical field of low-pressure casting equipment. The device comprises a main frame body with a stand column, and an opening and closing type mechanism and an electrical control system which are arranged on the frame body, and is characterized in that a manipulator mechanism electrically connected with the electrical control system is arranged on the stand column, and a containing and receiving disc is arranged at the tail end of the manipulator mechanism and used for containing and receiving aluminum castings; wherein the receiving disc receives the aluminum casting when located at the first position, and stops acting when located at the second position; a containing box is arranged at the position, between the first position and the second position, of the ground, a shifting rod is fixedly installed on the containing box and used for shifting the aluminum castings from the containing box to the containing box, and the device further comprises a conveying belt for guiding out the aluminum castings in the containing box in batches. The aluminum castings are automatically discharged to the containing box through the combination of the containing box and the deflector rod installed on the containing box, and the function of discharging the aluminum castings in batches in combination with the prior art is achieved.

The invention provides a cold plate with a copper embedded structure, which enables a copper plate and an aluminum alloy cold plate which are in contact with a heat source to be reliably assembled without welding, so that the manufacturing cost is reduced. The copper plate is used for being in contact with a heating source for heat conduction; the aluminum casting comprises a bottom plate and a peripheral surrounding plate; a bottom plate of the aluminum casting is provided with a profiling inner groove on the periphery of a copper plate, the profiling inner groove is not a through groove, the bottom plate is further provided with at least one lower convex insertion strip, and the lower convex insertion strip comprises an upper narrow strip and a lower wide strip. A concave profiling cavity is formed in the position, corresponding to the lower convex insertion strip, of the upper surface of the copper plate, and the concave profiling cavity comprises an upper narrow strip cavity and a lower wide strip cavity; the upper narrow strip is embedded in the upper narrow strip cavity, the lower wide strip is embedded in the lower wide strip cavity, and the top face of the profiling inner groove is attached to the upper plane of the copper plate.

The utility model relates to an aluminum casting machining drainage system which comprises a drainage header pipe transversely arranged below a plurality of cleaning water tanks distributed side by side, a drainage port of each cleaning water tank is connected with the drainage header pipe through a drainage branch pipe, and one end of the drainage header pipe is connected with the input end of a water suction pump; the device further comprises a discharged liquid collecting pool, and the discharged liquid collecting pool is connected with the output end of the water suction pump. And a liquid inlet end of the filter is connected with a discharge port of the discharged liquid collection pool. The cleaning device is simple and reasonable in structural design, the liquid drainage header pipe is connected with the multiple cleaning water tanks at the same time, cleaning liquid in the multiple cleaning water tanks is pumped and drained at a time through the water pump, operation is convenient and fast, and working efficiency is improved.

The application discloses a laser cutting device and method for aluminum casting processing, and belongs to the technical field of laser cutting and precision automation support, which comprises a cutting system, a posture calibration system and a collaborative support unit with a force sensor; the calibration system scans the casting and is aligned with a digital twin model; a controller simulates cutting, identifies a critical separation point, calculates the theoretical weight of a separated part, and obtains the minimum stable detection threshold of the force sensor; cutting is paused before the critical point, and a flexible support head performs adaptive support: if the weight is greater than the threshold, the support is performed until the force value reaches the threshold; if the weight is less than the threshold, the support is performed until the force signal first jumps; after the support is completed, the critical point is cut, and the support unit is used to grab the part. The independent fixed collaborative support base is adopted, mechanical vibration generated by a five-axis motion gantry during high-speed movement is blocked from being transmitted to the collaborative support unit, and the support precision and stability are effectively improved.

A molten metal laundering system includes a pump that draws molten metal from a reservoir. A heated raceway receives the molten metal from the pump and carries a flow of the molten metal. A conduit extends from the heated raceway and is exposed exterior the heated raceway. The conduit carries the flow. A temperature sensor senses a temperature of the molten metal in the conduit. An outlet at an end of the conduit directs the flow from the conduit into a casting mold. A flow meter is disposed along the conduit with the conduit extending through the flow meter. The flow meter senses a flow rate of the flow of the molten metal in the conduit. A control module adjusts operation of the pump based at least on the flow rate sensed by the flow meter and the temperature sensed by the temperature sensor.

The invention relates to a method for joining a first component (2) to a second component (3), wherein the first component (2) is provided, which has a base body (4) designed as an aluminum casting component and provided with a layer (5) produced by a thermal spraying process. The second component (3) is provided, which is designed as a steel component. To join the first component (2) to the second component (3), the second component (3) is attached to the layer (5) by a resistance welding process. The second component (3) is welded to the layer (5) in at least one joining zone (6) using an electric current, and thereby attached to the layer, wherein the current intensity of the electric current is in the range of 6.4 kiloamperes up to and including 9.2 kiloamperes.

This invention provides a purification and degassing device for a continuous aluminum melting furnace that effectively solves the problem of high defect rates in manufactured aluminum castings due to the generation of substances such as bubbles, slag holes, and impurities in the molten aluminum during conventional aluminum melting. [Solution] The purification and degassing device for a continuous aluminum melting furnace according to the present invention is provided with a furnace body 1. The furnace body 1 is provided with a melting area 10 where a melting heater 2 is provided, a heat retention area 11 where a heat retention heater 3 is provided, and a molten metal removal area 12. A plurality of gas diffusers 4 are provided at the bottom 13 of the furnace body in the heat retention area 11, and each of the gas diffusers 4 is provided with an air supply pipe 40 connected to an inert gas conveying device.

The invention relates to an automatic exposure method for internal imaging of an aluminum casting hole in an industrial quality inspection scene in the technical field of industrial imaging. The automatic exposure method comprises the following steps: determining the maximum exposure time corresponding to an image average gray value meeting a detection requirement; determining an exposure time sampling interval; and performing interpolation polynomial fitting according to the maximum exposure time and the exposure time sampling interval. Compared with a conventional mode of determining exposure time in industrial AOI quality inspection, the method can save a lot of manpower work; the detection step length and the exposure time are decoupled, so that the method is more flexible; the method can adapt to the influence of the inner wall roughness and the bottom roughness caused by the abrasion of a machining tool on imaging to a certain extent.

The invention relates to the technical field of water heaters, in particular to a cast aluminum heating body structure and a water heater, the cast aluminum heating body structure comprises an electric heating assembly, a spiral water pipe and an aluminum casting; the two ends of the spiral water pipe are fixedly connected with a water outlet pipe and a water inlet pipe respectively, and the spiral water pipe extends spirally and surrounds the surface of the electric heating assembly. The spiral water pipe is formed by alternately connecting a plurality of straight pipe sections and bent pipe sections, and the two ends of each bent pipe section are fixedly connected with the ends of every two adjacent straight pipe sections respectively. The straight pipe section comprises a plurality of convex parts and concave parts, the convex parts and the concave parts are alternately and continuously arranged in the circumferential direction of the straight pipe section to form an insection structure, the convex parts and the concave parts are each of a strip-shaped structure, and the strip-shaped structures extend from the starting end of the straight pipe section to the tail end of the straight pipe section; the problems that in an existing water heater, a cast aluminum heating body is poor in heat exchange efficiency and low in heating speed are solved.

The invention discloses an automobile part milling device with an automatic positioning and clamping structure, and belongs to the technical field of aluminum casting milling, the automobile part milling device comprises a workbench, a connecting seat is arranged on the workbench, a mounting table is arranged on the connecting seat, a plurality of positioning assemblies are arranged on the mounting table, and L-shaped parts are positioned on the positioning assemblies; and the plurality of milling pieces are movably connected to the linear module, and the linear module is connected to the mounting plate. The method solves the problems that in the two-end milling machining process of the L-shaped automobile part, due to the unique geometric structure, in the two-end milling machining process of the L-shaped automobile part, a step-by-step positioning strategy needs to be adopted in a traditional machining mode, positioning reference adjustment, clamping force calibration and program reset are involved in each clamping, and the single-piece machining time is obviously increased; and during single-head positioning, the other end of the part is in a suspended state, so that the vibration coupling effect is easily generated in the machining process, and the machining quality is influenced.

The invention discloses a sizing device and method for a large high-strength frame structural member. The sizing device comprises an aluminum casting body, a sizing gasket used for sizing is placed at the top of the aluminum casting body, and a sizing mechanism used for sizing of the aluminum casting body is arranged at the top of the sizing gasket; by means of the structure in the shape correcting mechanism, the advantage of direct positioning after the T-shaped shape correcting rod is adjusted is achieved, direct deviation is avoided, the accuracy of follow-up pressing shape correcting is guaranteed, the T-shaped shape correcting rod can be conveniently adjusted to the needed position by means of the sliding connection relation between the matrix type T-shaped groove formed in the bottom of the shape correcting flat plate and the T-shaped shape correcting rod, and the shape correcting efficiency is improved. The telescopic rod and the spring are directly positioned at a preset position after being adjusted through abutting fit of the abutting block and the matrix type T-shaped groove, the telescopic rod and the spring are conveniently and fixedly connected with the oil press through the mounting mechanism, limiting pre-connection is conducted in a pre-connection mode for facilitating connection and fixation of the telescopic rod and the spring, and then locking and fixing are conducted through the bolt.

The utility model belongs to the technical field of aluminum casting shape righting, and particularly relates to an aluminum casting machining shape righting tool which comprises a supporting table, a first positioning plate and a second positioning plate which are opposite to each other are arranged on the supporting table, the supporting table comprises a peripheral outer cover and a bottom plate fixed to the bottom of the inner side of the outer cover, and a top plate is fixed to the top of the inner side of the outer cover. Transmission boxes are fixed to the two sides between the bottom plate and the top plate. An adjusting plate which is adjustably connected with the second positioning plate is arranged on the supporting table; it can be understood that the first positioning plate and the second positioning plate in different directions can be driven to move inwards or outwards at the same time through driving of a single motor, so that all-directional positioning of the aluminum casting in the horizontal direction is achieved, stability and reliability during aluminum casting shape correction are guaranteed, controllability and consistency of the single motor are improved, and the machining efficiency is improved. And secondly, the second positioning plate can be independently adjusted and can adapt to positioning of aluminum castings of different sizes, the flexibility is high, and the practicability is high.

The utility model provides a metal casting forming device which comprises a base, a lifting frame, a rotary table, a cleaning mechanism and a suction mechanism, a lower die is arranged on the base in an inserted mode, a groove is formed in one side of the lower die, the groove is formed in the base, and the lifting frame is arranged on the base; the rotating disc is arranged on the lifting frame, a first driver is arranged at the top of the rotating disc and inserted into the lifting frame, and an upper mold is arranged at the bottom of the rotating disc; the cleaning mechanism is arranged on one side of the upper mold, is connected with the turntable, and comprises a support, a cylindrical seat, a second driver and a heating scraping structure; and the suction mechanism is arranged on the cylindrical seat. Therefore, impurities and residual filter materials adhered to the lower die of the aluminum casting can be cleaned in time, the cleanliness of the die is guaranteed, and the forming efficiency of the device on the aluminum casting is guaranteed.

This utility model discloses an aluminum casting conveying and flipping device, which relates to the field of flipping equipment technology. It includes a first support, a second support, a first conveyor belt, a second conveyor belt, multiple baffles, and a push-pull assembly. The second conveyor belt is mounted on the second support, and the first conveyor belt is mounted on the first support, with the first support straddling the second conveyor belt. Both the first and second conveyor belts are horizontally designed, and the second conveyor belt is longer than the first conveyor belt. This utility model conveys aluminum castings from the first conveyor belt to the second conveyor belt, with the front end resting on the second conveyor belt and the rear end at the end of the first conveyor belt in an inclined state. The second conveyor belt conveys the castings in the opposite direction to the first conveyor belt. The baffles on the second conveyor belt push the front end of the aluminum casting to move, and the rear end of the aluminum casting is blocked at the end of the first conveyor belt, thus flipping the aluminum casting. This reduces labor intensity, improves work efficiency, has a simple structure, and saves costs.

The utility model relates to the technical field of aluminum casting machining, in particular to an adjustable aluminum casting machining fixing device which comprises a workbench, a shell is fixedly connected to the top of the workbench, and a clamping mechanism and a transmission mechanism are arranged on the top and the inner side of the shell. The clamping mechanism comprises a rotating disc, a support, a placement table, a thick gear, a connecting shaft, a half gear, clamping rollers, a rotating shaft and a first motor, the rotating disc is rotationally connected with the shell, the support is fixedly connected to the edge of the top of the rotating disc, and according to the clamping mechanism, the first motor drives the multiple clamping rollers to move; the aluminum casting placed on the placing table is clamped and limited by the multiple clamping rollers in the approaching moving state, so that the aluminum casting is positioned at the center of the surface of the placing table to rotate, and the transmission mechanism enables the second motor to drive the rotating disc and drive the clamped aluminum casting on the placing table to rotate. And therefore, the machining angle of the aluminum casting clamped on the placing table can be conveniently adjusted.

The invention relates to aluminum casting waste recycling equipment and method for automobile parts, and belongs to the technical field of automobile aluminum casting recycling. Through the mutual cooperation effect of knife rollers, spiral cutter heads and stepped impact plates, firstly, large-size entanglements are subjected to the longitudinal shearing effect of the paired reversely-rotating knife rollers in a longitudinal shearing pre-partition area, and the large-size entanglements are sheared off and put in order; then, the materials fall into a transverse shearing dissociation area, transverse shearing, scraping and radial throwing are applied to the materials through an obliquely-installed spiral cutter head, and the bonding interface of the composite particles is continuously weakened through multiple times of collision and friction; then, the materials impact on the stepped multidirectional impact plate, multidirectional random rebound is triggered through staggered steps and rough surfaces, stress concentration and local shearing are generated at the joint surface, and final dissociation of aluminum and the heterogeneous materials is achieved; and the problems of low purity of the secondary aluminum and easy degradation circulation caused by difficult separation of the composite particles in the traditional recovery process are solved.

The utility model relates to the technical field of polishing equipment, in particular to polishing equipment for machining aluminum castings, which comprises a polishing longitudinal plate, a water tank is arranged at the front end of the polishing longitudinal plate, a horizontal polishing table is arranged at the top of the water tank, and the periphery of the polishing table and the inner edge of the top of the water tank are arranged at intervals. The protective cover and the polishing cover are distributed on the two sides and the top of the polishing longitudinal plate and connected with the two sides of the water tank; the motor is fixedly arranged below the water tank, an output shaft of the motor penetrates through the polishing longitudinal plate, and the motor is electrically connected with a power source through a foot switch; the grinding spindle horizontally penetrates through the grinding longitudinal plate and corresponds to the upper portion of the grinding table, a grinding head is arranged at the front end, corresponding to the grinding longitudinal plate, of the grinding spindle in a matched mode, and a transmission mechanism connected with the grinding spindle and a motor output shaft is arranged at the rear end of the grinding longitudinal plate. According to the utility model, metal chips generated by polishing fall into the water tank through gaps around the polishing table, so that the purpose of collecting dust is achieved, and the risk that the metal dust flies to damage electrical parts is avoided.

The utility model discloses a sewing machine belt pulley balance noise reduction aluminum casting which is formed by splicing a first shell and a second shell, sound absorption materials are arranged in a cavity jointly formed by the first shell and the second shell, and a plurality of through holes are evenly formed in the second shell. When the balance noise reduction aluminum casting is installed, the second shell is installed on the belt pulley through bolts, a first butt joint block is integrally arranged on the outer wall of the first shell, a second butt joint block is integrally arranged on the outer wall of the second shell, and the first butt joint block and the second butt joint block are fixed through bolts. Relates to the technical field of belt pulley balance noise reduction aluminum castings, by arranging the balance noise reduction aluminum casting formed by combining a first shell and a second shell, arranging a sound absorption material in a common cavity of the first shell and the second shell, when noise is generated between a belt pulley and a belt, the sound absorption material can absorb part of the noise, and therefore the noise can be effectively reduced.

Various implementations described herein are directed to a formwork system. In one implementation. the formwork system includes aluminum extrusions and aluminum castings. The aluminum castings and the aluminum extrusions can be assembled by being pressed and riveted together.

A molten metal pouring trough system includes a pump that draws molten metal from a reservoir. A heated channel receives the molten metal from the pump and carries a flow of the molten metal. A pipe extends from the heated channel and is exposed outside of it. This pipe carries the flow. A temperature sensor detects the temperature of the molten metal in the pipe. An outlet at one end of the pipe directs the flow from the pipe into a mold. A flow meter is positioned along the pipe, which extends through it. The flow meter measures the flow rate of the molten metal in the pipe. A control module adjusts the pump's operation based on at least the flow rate detected by the flow meter and the temperature detected by the temperature sensor.