251results about How to "Solve the deformation" patented technology

The invention relates to a porous structure manufactured through laser powder bed melting additive manufacturing, in particular to a gradient porous structure with excellent mechanical property and functionality and an LPBF self-adaptive input manufacturing method of the gradient porous structure. According to the method, basic geometric parameters and gradient characteristics of the gradient porous structure are defined by utilizing Grasshopper parameterization design software. A gradient porous structure with excellent mechanical properties and functionality is generated through a grasshopper plug-in of software, and smooth transition from a solid state to a porous state is achieved. An LPBF technology is adopted and combined with an angle partitioning strategy, the gradient porous structure is melted layer by layer, the gradient porous structure is partitioned according to the strut suspension angle on the basis of optimizing process parameters, the optimized process parameters are applied to a model of the partitioned region, and the gradient porous structure is obtained. Scanning of each layer of the overhanging supporting columns at different angles is in appropriate laser parameter input, and the problems of deformation and high porosity caused by heat accumulation in the LPBF process are effectively solved.

The invention provides a cross-core pull rod composite frame large-span glass curtain wall construction method, belongs to the technical field of glass curtain wall construction, and mainly comprises two links of manufacturing and mounting. In the manufacturing link, the right-angle flat-section rectangular pipe is manufactured by adopting a cold and hot extrusion process, and the required component is obtained through annealing, cold extrusion forming and local hot extrusion treatment. The installation link comprises the following steps: firstly, carrying out construction deepening design on a pull rod system, decomposing a cross-core pull rod into inter-section pull rods, and determining a pre-arching value of the cross beam through simulation analysis; then on-site construction is conducted, and the steps of installation and adjustment of stand columns, hoisting and positioning of large-span cross beams, assembly and connection of internode pull rods, installation and welding of midspan davits and the like are sequentially completed. And finally, a #-shaped tensioning tool is adopted for tensioning the pull rod system, and installation of the glass panel and the decoration system is completed, so that the construction quality and the structural safety of the large-span glass curtain wall system are ensured, and the technical problems that a traditional method excessively depends on artificial experience, and scientific theoretical guidance and accurate control means are lacked are solved.

The present application provides a stainless steel template welding tool, which relates to the field of tooling equipment. The stainless steel template welding tool includes: an operating platform, which is provided with an assembly area for placing the template components to be welded; a fixed frame, which is fixed on the operating platform in an L shape and surrounds the edge of the assembly area; a side clamping mechanism, including: a first driving component and a side pressure frame, the first driving component is used to drive the side pressure frame to move in the direction close to or away from the long side of the fixed frame; an end clamping mechanism, including: a second driving component and an end pressure frame, the second driving component is used to drive the end pressure frame to move in the direction close to or away from the short side of the fixed frame; a vertical rib limiting part, which is used to limit the vertical ribs; a top clamping mechanism, including: a plurality of third driving components, and a plurality of third driving components are used to respectively clamp and release the frame and the transverse ribs. The stainless steel template welding tool can solve the deformation problem generated during the production process of the stainless steel template while ensuring accurate processing.

The invention relates to the technical field of artificial boards, in particular to a preparation method of a bamboo fragrance board. Comprising the following steps that S1, selected bamboos are peeled, cut and crushed, so that the bamboos are changed into small sections of bamboo fibers; s2, bamboo and wood fibers are put into a treatment tank, and a liquid additive is added into the treatment tank; s3, wood flour and cement are added into the treatment tank, and the bamboo and wood fibers, the wood flour and the cement are evenly mixed to form a mixed base material; s4, the mixed base material is put into a mold for vibration, compaction and cold pressing; therefore, the plate becomes a basic plate; s5, the basic plate is put into a pre-pressing machine to be subjected to pre-pressing treatment; s6, the base plate obtained after prepressing treatment is put into a drying room to be dried; s7, the flatness of the dried basic plate is adjusted; s8, the basic plate with the adjusted flatness is cut and trimmed, so that the required size is achieved; and S9, the surface of the cut basic board is polished, painted and sprayed, and therefore the bamboo fragrance board is manufactured.

The utility model discloses a bending device for bracket processing, which relates to the technical field of machining, and comprises a workbench and a bending mechanism, a bracket needing to be bent is clamped and fixed through a fixing frame, in the bracket bending process, a rotating shaft is driven by a motor to further drive the bracket to move and feed, and the bracket is bent by adjusting the length of a telescopic pipe. In the feeding process, impurities on the surface of the support are scraped off through a friction scraping plate, a support cleaning agent stored in a liquid storage box enters the limiting blocks through telescopic pipes and is sprayed to the surface of the support through through holes, stubborn impurities on the surface of the support are further removed, and the cleaning effect of the support is improved. The problem that the support is bent unevenly or deformed due to impurities is solved, the support is heated through the electromagnetic heating plate, the hardness and strength of materials are reduced, meanwhile, a cleaning agent is dried, and it is prevented that the cleaning agent stays on the surface of the support, secondary pollution is caused to the support, and the quality of the support is affected.

The invention provides a mechanical watch movement second shaft machining method. The mechanical watch core second shaft machining method comprises the steps that a, a high-precision metal bar is adopted and cut into a machining blank meeting the length requirement of a second shaft, preliminary deburring and polishing treatment are conducted on the surface of the blank, machining errors caused by surface defects are reduced, and materials with obvious defects are removed through quality detection; according to the mechanical watch core second shaft machining method, through application of the key model and the optimization technology, the machining precision and the surface quality of the mechanical watch core second shaft are remarkably improved. Through introduction of the flexible clamping device and combination of an elastic modulus and pressure distribution optimization algorithm, the problem of workpiece deformation caused by too large clamping force in traditional machining is effectively solved, and the method is particularly suitable for machining of a second shaft with a small size. According to the high-frequency ultrasonic vibration auxiliary turning technology, by means of dynamically-adjusted vibration frequency and cutting force distribution, the influence of machining vibration on the surface quality is reduced, and the cutting efficiency is remarkably improved.

The invention discloses a full-automatic horizontal machining center, and belongs to the technical field of machine tools, the full-automatic horizontal machining center comprises a square frame, a cutter feeding system, a cradle, a left supporting seat, a right supporting seat, a servo rotation driving device and a brake device, the cutter feeding system is arranged on the square frame, the cradle is used for clamping and bearing a machined workpiece, and the left supporting seat is arranged on the right supporting seat; the left supporting seat and the right supporting seat are arranged at the left end and the right end of the square frame, a left supporting shaft on the cradle is installed on the left supporting seat through a bearing, a right supporting shaft on the cradle is installed on the right supporting seat through a bearing, the left supporting shaft and the right supporting shaft are coaxially installed, and the servo rotation driving device is used for driving the left supporting shaft to rotate. The brake device is used for limiting rotation of the right supporting shaft. The cradle is of a latticed frame plate structure made of materials which are light in weight and high in bearing capacity. According to the cradle, the latticed frame plate structural design is adopted, a horizontal rotating system of the cradle is moved away, the weight of the cradle is greatly reduced, the moving inertia is reduced, the displacement precision of the cradle is improved, and therefore the machining precision and stability of the machining center are improved.

The invention discloses a large-scale aluminum-plastic liquid cooling plate for a battery pack and a preparation method thereof.The large-scale aluminum-plastic liquid cooling plate for the battery pack comprises a plastic runner plate and an aluminum alloy thin plate, one surface of the plastic runner plate is provided with a first combination surface, and one surface of the aluminum alloy thin plate is provided with a second combination surface; a plurality of runners are arranged on the first combination face of the plastic runner plate at intervals through runner partition ribs, a liquid inlet is formed in one end of each runner in a converging mode, a liquid outlet is formed in the other end of each runner in a converging mode, and the runner partition ribs close to the liquid inlets are provided with drainage parts used for distributing inflow liquid. The plastic runner plate and the aluminum alloy thin plate are combined through the first combination face and the second combination face. The preparation method comprises the steps that the aluminum alloy thin plate and the plastic runner plate are prefabricated; the first combination surface of the plastic runner plate and the second combination surface of the aluminum alloy thin plate are combined to form an aluminum-plastic liquid cooling plate; anchoring is carried out on the other surface of the aluminum alloy thin plate along a runner partition rib self-tapping screw of the plastic runner plate; and testing the air tightness of the aluminum-plastic liquid cooling plate and the like.

The invention provides a method for controlling curing deformation of a composite stiffened wallboard. The method comprises the steps that a metal plate is arranged on the side face, away from a stringer, of the wallboard; composite material plates are laid on the side face, away from the stringers, of the metal plate to form the composite material structural part, the number of the composite material plates corresponds to the number of the stringers, the composite material plates directly face the attaching faces of the stringers and the wall plates one to one, materials and laying layers of the composite material plates are the same as those of the wall plates, and the laying layers of the composite material plates are symmetrical to the total laying layer of the stringers and the wall plates. The thickness of the composite plate is equal to the total thickness of the composite at the binding surface of the stringer and the wall plate, the heading width of the composite plate is consistent with the heading width of the binding surface, and the circumferential width of the composite plate is consistent with the circumferential width of the binding surface; and after the composite material structural parts are solidified together, the metal plate and the composite material plate are removed in a machining mode, and the complete composite material stiffened wall plate is obtained. The purpose of controlling solidification deformation of the composite material is achieved, and the manufacturing cost is saved.

The invention relates to a heat-treatment-free high-toughness aluminum-magnesium-silicon alloy and a preparation method thereof, belongs to the technical field of aluminum alloys, and solves the problems that a heat-treatment-free aluminum alloy in the prior art is not high in toughness and cannot meet the production of large thin-wall components. The invention relates to a heat-treatment-free high-toughness aluminum-magnesium-silicon alloy, which comprises the following elements in percentage by mass: 7 to 9 percent of Mg, 2 to 3 percent of Si, 0.1 to 0.4 percent of Mn, 0.05 to 0.2 percent of Ti, 0.05 to 0.1 percent of Zr, 0.01 to 0.05 percent of B, 0.01 to 0.1 percent of Cu, 0.05 to 0.2 percent of Zn, 0.05 to 0.1 percent of Ca, 0.05 to 0.1 percent of RE, 0.003 to 0.005 percent of Be, 0 to 0.15 percent of Fe, less than or equal to 0.15 percent of other uncontrollable impurity elements and the balance of Al. And preparation of the heat-treatment-free high-toughness aluminum-magnesium-silicon alloy is achieved.

The invention discloses a forming method of a high-speed wheel spoke plate, which further comprises a shaping die used in a shaping step, and the method comprises the following steps: 1) plate shearing and blanking are carried out, and a product blank is prepared from raw materials; (2) stretching forming is conducted, and a radial plate contour piece is manufactured through the product blank; 3) punching: punching a mounting hole and a middle hole in the radial plate contour piece; (4) flanging is conducted, specifically, the edge of the radial plate contour piece is flanged; 5) shaping; according to the method, the position precision of the middle hole and the chamfer of the product is remarkably improved. Cooperative shaping machining of chamfers, mounting holes, middle holes and turned-over edges is completed in the same working procedure through the shaping die. And through the synchronous shaping process, the runout control precision and the chamfering position degree of the radial plate are remarkably improved. According to the method, the production efficiency is greatly improved, accumulative errors are reduced, and high-quality and high-efficiency production of the high-speed wheel spoke plate is achieved.

The invention discloses an energy-saving glass forming machine, and relates to the technical field of glass forming machines, the energy-saving glass forming machine comprises a blowing device and an operation table, the operation table is fixedly connected with a driving motor and a guide rod, an output shaft of the driving motor is fixedly connected with a reciprocating screw rod, and the guide rod is symmetrically in threaded connection with molds; according to the device, the scraping plate rotates around the outer ring surface of the blowing head, so that frit residues on the outer ring surface of the blowing head are removed in time, smooth blowing of the blowing device is guaranteed, and the residues are prevented from being adhered to a bottle opening of a next glass bottle; the blowing head of the blowing device removes attachments after blowing each time, the scraping plate is used for cleaning after blowing each time, defective products or waste products caused by residual frit due to untimely cleaning can be effectively avoided, in this way, the blowing head of the blowing device removes the attachments after blowing each time, defective products and defective products caused by the residual frit can be avoided, and the production efficiency is improved. Therefore, resource waste and rejection rate are reduced.

The utility model relates to the field of transportation frames, in particular to a front pedestrian protection beam transportation frame which comprises a first supporting assembly and second supporting assemblies movably connected to the two sides of the first supporting assembly, the top face of the first supporting assembly is fixedly connected with a first supporting piece, and one side of each second supporting assembly is connected with a second supporting piece and a pressing piece in an overturning mode. The first supporting piece, the second supporting piece and the pressing piece are used for supporting and fixing the front pedestrian protection beam. By arranging the first supporting assembly and the second supporting assembly which are movably connected, the problem that the front pedestrian protection beam transportation frame of an integrated structure cannot be folded or disassembled to save the storage space or replace part of parts is solved; by additionally arranging the first supporting piece, the second supporting piece and the pressing piece, the problem that the front pedestrian protection beam is scattered or deformed due to improper fixing protection in the transportation process is solved.

The invention discloses a target surface normal reconstruction method and device based on physical constraints, and belongs to the technical field of three-dimensional target reconstruction. The method comprises the steps of calculating target surface polarization characteristics based on test data of a polarization imaging measurement device; establishing an equation set of the relationship between the target surface normal and the depth; constructing zenith angle constraints based on the luminous flux idea, and correcting the relationship between the target surface normal and the depth by using the zenith angle constraints; constructing a loss function about depth by utilizing convexity prior constraint, and constraining the corrected equation set by utilizing the loss function; and solving the corrected equation set constrained by the loss function by using the target surface polarization characteristics to obtain zenith angle and depth estimation, and determining final target surface normal distribution by using the obtained zenith angle and depth estimation. According to the invention, more accurate normal distribution of the target surface can be obtained.

The invention relates to a face-based display picture adjustment method, device and equipment and a medium, and the method comprises the steps: obtaining a to-be-adjusted video file, and obtaining to-be-adjusted target face data from the video file, the target face data comprising a first face region and first feature point data; determining a second face region matched with the first face region in a face database, and extracting second feature point data corresponding to the second face region; comparing the first face region with the second face region by using the first feature point data and the second feature point data to obtain a difference coefficient between the first face region and the second face region; and determining an adjustment coefficient according to the difference coefficient, and adjusting a display picture of the video file according to the adjustment coefficient. The problem of picture deformation during video playing caused by incorrect video proportion is solved.

The present invention discloses a dry coke quenching center bolt device, which belongs to the technical field of dry coke quenching. A lifting handle is horizontally arranged on the top of a lifting rod, a cover body is horizontally arranged on the bottom of the lifting rod, the lifting rod is inserted into a center bolt shell, a sealing flange and a pressure cover are arranged at the connection between the lifting rod and the center bolt shell, the pressure cover is arranged on the upper part of the sealing flange, the lifting rod passes through the pressure cover and the sealing flange, a sealing sleeve is arranged between the pressure cover and the sealing flange, the stuffing in the sealing sleeve is tightened, the cover body is connected to the base, and a first bracket and a second bracket are welded on the sealing flange. The center bolt device solves the problem of poor sealing between the center bolt and the base, and also avoids the phenomenon that the original center bolt lifting rod is easy to deform and causes the center bolt to be unable to be lifted, while increasing the service life of the center bolt body, ensuring the control of the gas introduction amount, and stabilizing the dry coke quenching circulation system.

The embodiments of the present application disclose a battery cell, a battery and an electrical device. The battery cell includes: an electrode assembly, the electrode assembly includes a positive electrode plate, the positive electrode plate includes a positive electrode active material that can reversibly release and embed metal ions, and the positive electrode active material includes a nickel-containing compound; a shell for accommodating the electrode assembly, at least a portion of the shell has a tensile strength of Rn at a temperature of 500°C, and Rn satisfies: 100MPa≤Rn≤1200MPa, the shell includes a weld, and at least a portion of the shell includes an area of ​​the shell within a preset distance from the weld, and the preset distance is L, and L satisfies: L=10mm. The battery cell, battery and electrical device of the embodiments of the present application can improve the reliability of the battery cell.

The invention relates to the technical field of packaging barrels, in particular to an anti-impact packaging barrel which comprises a sealing cover, a barrel body, a handle and bolts, a damping pad is arranged on the outer side of the barrel body, a connecting plate is fixedly connected to the side, away from the barrel body, of the damping pad, a mounting groove is formed in the inner side of the connecting plate, and a damping rod is fixedly connected to the inner side of the mounting groove; a damping rod is arranged on the base, a spring is arranged on the outer side of the damping rod, and one end of the damping rod is fixedly connected with an elastic protection pad. In the shock absorber, through the arrangement of the damping rod, the spring and the elastic protection pad, vibration energy generated by impact can act on the elastic protection pad, and the elastic protection pad can act on the damping rod and the spring after being deformed to a certain degree; the spring can store and release the vibration energy, the damping rod can consume the energy, the vibration amplitude and frequency of the connecting plate are jointly reduced, the vibration energy transmitted to the barrel body is reduced, and the barrel body is not prone to deformation.

The utility model provides an optical element, an optical assembly and an optical lens. The optical element comprises an outer ring surface far away from an optical axis; the inner ring surface is close to the optical axis, the inner ring surface is an inclined surface, a plurality of extinction structures arranged at intervals are arranged on the inner ring surface, any extinction structure is composed of a plurality of tooth grooves, and the tooth groove section shapes of the extinction structures on the same inner ring surface comprise one or more types; the object side surface and the image side surface are connected with the outer ring surface and the inner ring surface; the extinction structures on the inner ring surface are irregularly arranged at intervals or uniformly arranged at intervals; the tooth groove section shape of the extinction structure comprises one or more of an irregular triangular tooth groove, an irregular trapezoidal tooth groove, an irregular arc-shaped tooth groove and an irregular rectangular tooth groove. The light reflectivity of the optical element is less than or equal to 10%; at least five tooth grooves are contained in any radian with the angle of 45 degrees on the inner ring face. According to the utility model, stray light related to the pressing ring can be improved and weakened, and the structure strength is enough.

The utility model provides a fisheye terminal, which comprises a connecting part, an elastic plugging part and an inserting part which are sequentially arranged, the upper side and the lower side of the elastic plugging part are provided with two surfaces which correspond to each other and are parallel to each other, the two surfaces are respectively concavely provided with blind holes towards the opposite directions, a horizontal connecting wall is formed between the two blind holes, and the horizontal connecting wall is connected with the elastic plugging part. An arc-shaped part bent towards the blind hole in one side is arranged on the horizontal connecting wall in the length direction of the horizontal connecting wall, and the front end and the rear end of the arc-shaped part are disconnected from the horizontal connecting wall. The fisheye terminal provided by the utility model adopts a symmetrical structure, which is more favorable for processing and forming, and the material flow is relatively stable during forming, so that the product is more stable; the terminal is convenient to process on the basis of realizing the functions of the terminal; according to the fisheye terminal with the shape, the elastic contraction and elastic recovery capabilities of the elastic plugging part are increased by using the arc-shaped part, and a supporting block used for supporting the horizontal connecting wall can be arranged during stamping, so that the problem of deformation of the horizontal connecting wall and the side wall of the blind hole is solved.

The application discloses a mechanical clamp jaw with anti-deviation positioning function and relates to the technical field of mechanical clamp jaws.The mechanical clamp jaw comprises two groups of jaw bodies arranged in the interior of an assembly body and used for assisting in clamping assembly of a direct-current contactor.The direct-current contactor comprises an upper shell and a lower shell.The mechanical clamp jaw triggers an inner elastic support structure through a clamping process linkage, can support the inner wall of a weak recessed opening of the upper shell of the direct-current contactor by a support plate when clamping the upper shell, effectively balances clamping extrusion force, restricts the inward collapse and distortion of the opening edge, accurately maintains the original size and shape of the opening, guarantees the basic matching precision of the openings of the upper and lower shells, and automatically completes the accurate alignment and communication of the openings of the upper and lower shells by relying on an anti-deviation positioning assembly to adaptively rotate and correct the lower shell with placement deviation during the assembly butt joint process of the shells, so that the problems of shell clamping deformation, assembly alignment deviation and assembly failure that are prone to occur in traditional clamp jaws are solved.

The present invention relates to the technical field of high-temperature alloy investment casting, and specifically to a method for forming the inner cavity of a high-temperature alloy hollow guide blade. When designing the core mold, the overall inner cavity core is divided into two parts, namely, an exhaust side and an intake side. The inner cavity mold block on the exhaust side is made into a ceramic core mold, and the mold block on the intake side is made into a water-soluble core mold. When preparing the inner cavity core, the ceramic core and the water-soluble core are pressed separately, and the two pressed core parts are combined into a complete core and then a blade wax mold is pressed; the water-soluble core is removed by using the principle that the water-soluble core dissolves in water, and the remaining ceramic core is pressed into a wax mold, with the side close to the intake side as the fixed end and the exhaust side as the free end, and a shell is prepared, and a high-temperature alloy guide blade is prepared by using the method of fixing the ceramic core with the inner cavity shell. The present invention can reduce the casting stress caused by the difference in shrinkage between the ceramic core and the molten metal, and reduce the tendency of blade cracks and recrystallization.

This utility model discloses a packaging mold for a suspended guide coil, relating to the field of mold packaging technology. The device includes a material carrier plate; the material carrier plate has a material-carrying cavity inside, and the top and bottom of the material-carrying cavity are respectively provided with a first mounting limiting groove and a second mounting limiting groove. The first and second mounting limiting grooves are respectively fitted with a first molding component and a second molding component, which support the top and bottom coils. A lead wire support assembly is provided below the bottom coil. The packaging mold for the suspended guide coil of this utility model, through the mutual cooperation of various structures / components in the lead wire support assembly, ensures the parallelism of the three lead wires during the packaging process, effectively avoiding deformation under external force and improving the packaging accuracy of the coil.

The utility model provides a casing assembly structure and microwave oven, including rear cover and casing, the rear cover is installed on the casing, wherein the front side of rear cover is equipped with the front buckle, the casing is equipped with the front slot, the front side of rear cover is connected with the front slot of casing through the front buckle, its characterized in that: the front buckle is equipped with the front slot. A side buckle is arranged on the side face of the rear cover, a side clamping groove is formed in the corresponding position of the outer shell, and the side face of the rear cover is fixed through the side buckle and the side clamping groove of the outer shell. Through a buckle and clamping groove combined structure on the side face, the side face of the rear cover is fixed, the installation position of the rear cover can be accurately positioned when the rear cover and the shell are assembled, the structure is reliable, and the problem of deformation possibly caused by parallel installation can be synchronously solved.

The invention relates to the technical field of packaging box processing, in particular to packaging box automatic nail sealing equipment which comprises a nailing mechanism and at least two pressing mechanisms, the nailing mechanism is used for conducting nail sealing on a carton board, and the two pressing mechanisms are symmetrically arranged on the two sides of the nailing mechanism; the pressing mechanism comprises a driving assembly and a pressing roller set, the driving assembly is arranged on the nailing mechanism, the pressing roller set is rotationally connected to the nailing mechanism and connected with the driving assembly, the driving assembly is used for driving the pressing roller set to rotate, and the pressing roller set is used for pressing a carton board. The method has the effect of improving the product quality.

The utility model relates to the technical field of supports, and discloses a post-processing support with a reinforcing structure, which comprises a post-processing support body, a supporting cross beam and a hinge, the supporting cross beam is arranged on one side of the post-processing support body, and a cover plate is rotatably mounted on the upper side of the post-processing support body through the hinge. The two sides of the supporting cross beam are connected with the mounting bases through connecting bolts. According to the post-processing support with the reinforcing structure, after the supporting cross beam is clamped, the supporting cross beam and the mounting base are in threaded connection through connecting bolts, the adjusting plates are pulled towards the two sides, and after the adjusting plates and threaded mounting blocks at one ends of the adjusting plates are pulled to proper positions, the adjusting plates and the threaded mounting blocks at one ends of the adjusting plates are locked with other parts of a tractor through locking bolts; by means of the post-processing support with the reinforcing structure, the problem that a supporting cross beam is prone to deformation and breakage when the post-processing support is in butt joint with a tractor through a single fixing support is solved.

The utility model discloses a vertical quenching machine tool, which relates to the technical field of vertical quenching appliances and comprises a base and a support frame mounted on the base, a heating mechanism is mounted in the base, a cooling mechanism is mounted at the bottom end of the support frame, a positioning mechanism is mounted at the top end of the support frame, and a chain matched with the positioning mechanism is mounted on the support frame; through the matching of the positioning mechanism and the moving assembly, the height of the positioning drill bit and the position of the heating ring can be conveniently changed, so that the quenching device can adapt to machined parts of different specifications, the quenching is relatively uniform, and the product quality is improved; through the cooperation of a pipeline and a second lead screw which are independently arranged, the cooling position and the cooling efficiency can be accurately positioned according to the quenching requirement, so that the machining precision is improved, and the problems of dimensional deviation and deformation are avoided; and finally, the problems that an existing device cannot adapt to machined parts of different specifications and the cooling precision is limited, so that the quenched machined parts have size deviation and deformation are solved.

The invention belongs to the technical field of casting, provides a casting method of a seat ring, and particularly relates to a casting method of a hydroelectric seat ring, which comprises the following steps: dividing the seat ring into a first half seat ring and a second half seat ring, and integrally casting and forming the first half seat ring and the second half seat ring through a plurality of communicating structures, and the communicating structure is respectively communicated with the cavities of the first half seat ring and the second half seat ring. The mode that the two semi-ring castings are integrally cast is adopted, the rigidity of the castings can be improved, and the castings are prevented from deforming in the processes of solidification, box dismantling and the like. And the two half seat rings which are arranged up and down are fed at the same time by adopting the same riser, so that the yield is greatly improved and can reach 42%. When a pouring system is designed, the pouring pressure head is heightened, and the pressure head is enough in height, so that enough pressure is provided only when molten metal in a cavity rises, the mold filling speed of the molten metal is ensured, the problem of steel return due to low pouring pressure head is effectively avoided, and the quality of the upper crown surface of a casting is ensured.

The utility model relates to the technical field of glass production equipment, and discloses a compressed air valve group, an auxiliary combustion spray gun and a side fire combustion auxiliary device, and the compressed air valve group comprises a first air delivery pipe body, a first valve body, a regulating valve, a monitoring element and a controller. By arranging a closed-loop control structure of an adjusting valve and a real-time monitoring element, the compressed air supply state can be dynamically and accurately adjusted, and the stability of the side fire combustion process is improved; the controller can respond in real time according to parameters fed back by the monitoring element, control lag is reduced, and the response efficiency of the system is improved; by monitoring the state of the compressed gas in real time and quickly adjusting the compressed gas, abnormal combustion caused by excessive or insufficient gas supply can be avoided, and the continuity and safety of the kiln edge burning process are guaranteed, so that the production quality and production efficiency of glass products are improved.

The utility model relates to the technical field of kitchen appliances, and discloses an exhaust fume collecting hood of a range hood, which is provided with an exhaust fume suction port and an exhaust fume collecting cavity, and comprises an exhaust fume collecting hood shell, an exhaust fume collecting hood cover and an exhaust fume collecting hood cover, the opening and closing plate is used for opening or closing the smoke suction port; the opening and closing mechanism comprises a mounting frame and a first connecting rod, the first connecting rod is connected to the mounting frame and the opening and closing plate, the mounting frame is mounted on the lower surface of the top plate and adjacent to the side plate, and a reinforcing structure is arranged between the mounting frame and the side plate. According to the utility model, the opening and closing mechanism is fixed on the top plate, so that the appearance of the product is ensured, the opening and closing mechanism is convenient to install and fix, and the reinforcing structure is arranged near the top plate, so that the reinforcing structure can support and reinforce the top plate, and the bearing capacity of the top plate is improved; the deformation of the top plate caused by the long-term weight effect of the opening and closing mechanism is avoided, and the overall structural strength of the exhaust fume collecting hood and the movement stability of the opening and closing mechanism are guaranteed.