478results about How to "Reduce scrap rate" patented technology

The invention discloses a mold design method for a rubber part with a metal insert and a vulcanization molding process method thereof.The mold preparation method comprises the steps that firstly, a three-body type mold is designed according to the rubber part and comprises an upper mold, a middle mold and a lower mold, the middle mold, the upper mold and the lower mold are jointly positioned, and the middle mold and the lower mold are provided with glue overflowing grooves; 2, calculating the size of a mold cavity; step 3, mold preparation; the upper die, the middle die and the lower die are all made of 45 # steel, and the heat treatment hardness is 35-40 HRC; the roughness of the mold cavity part is 0.4, and the roughness of the matched part of the mold is 0.8. The vulcanization molding process method comprises the steps of rubber remilling, vulcanization molding, burr cleaning and inspection. Aiming at a rubber product containing an embedded metal ring, the problems of position control of an embedded part and difficulty in mold design are solved, and the problem of batch production is solved; the optimal product performance is ensured by the optimized vulcanization forming process; the environment-friendly effect is improved, and the waste rate is reduced.

The invention relates to the technical field of concrete electric pole manufacturing, and discloses an optimized steel fiber anti-crack ultra-high performance concrete centrifugal electric pole manufacturing method and system. The method comprises the following steps: dividing an electric pole manufacturing process into a plurality of manufacturing units according to production batches, and collecting material component data, process setting data and online detection data in each manufacturing unit to form a multi-source production data set; calculating an anti-cracking performance index and a strength performance index based on a multi-source production data set, and dynamically outputting an initial process correction value through a dual-threshold monitoring mechanism and a performance adjustment model; performing adaptive adjustment on the initial process correction value of each manufacturing unit according to the production correlation between the adjacent manufacturing units to generate an adjusted process correction value; and carrying out serialization processing on the adjusted process correction value, and outputting a production optimization instruction which is applied to a manufacturing execution process. According to the method, electric pole manufacturing whole-process data integration and dynamic process optimization are achieved, and the production efficiency and the product quality stability can be improved.

The utility model discloses a sleeve repair tool for a fuel manifold of a turboshaft engine, which comprises a support with the top end provided with a penetrating column with threads on the inner wall, and further comprises a threaded pressing rod with the top end provided with a pulling rod, and the threaded pressing rod is in threaded connection with the penetrating column through the threads on the outer wall; a semi-arc-shaped pressing plate is arranged at the bottom of the T-shaped sliding block, and the T-shaped sliding block is movably connected with the threaded pressing rod; a shape correcting arc plate is arranged on the positioning column opposite to the semi-arc pressing plate, and the positioning column is located at the middle section of the support; and the gland is connected to the positioning column through a bolt. According to the sleeve repairing tool for the turboshaft engine fuel main pipe, the problems that in the prior art, manual positioning is not accurate, and pipe wall cracks and internal threads are prone to being crushed to be scrapped due to repeated knocking are solved.

The utility model discloses a shoemaking hot-pressing die, and relates to the technical field of shoemaking hot-pressing dies. The EVA pouring mold comprises the lower mold, the upper mold and the functional mechanism, the functional mechanism comprises the upper middle mold and the lower middle mold, the upper middle mold and the lower middle mold are arranged, the upper middle mold and the lower middle mold are made of bakelite heat insulation plate materials, the bakelite heat insulation plate materials have good heat insulation performance, and when EVA pouring materials are heated, the EVA pouring materials are not prone to falling off. According to the technical scheme, part of heat can be effectively prevented from being conducted to the lower die, a cold blank is protected from being affected by overheating, and therefore it is guaranteed that the cold blank and EVA pouring materials are synchronously foamed at the proper temperature, the situations of color crossing, scorching and the like of finished products caused by flowing generated by excessive melting of the lower die cold blank are avoided, the rejection rate and the production cost are reduced, and the production efficiency is improved. And the positioning columns and the positioning blocks are arranged, so that alignment and positioning of the molds are ensured, the product quality problem caused by mold dislocation in the machining process is avoided, and the rejection rate caused by mold dislocation is reduced.

The application belongs to the technical field of inner gear ring processing equipment, and particularly relates to a secondary clamping tooth positioning device for an inserted cut inner gear ring, which comprises a base, a clamp provided on the base, a positioning sleeve matched with the clamp through a sliding bearing, and an elastic tooth positioning device matched with the positioning sleeve. The elastic tooth positioning device comprises a shell, a telescopic shaft provided in the shell, a cylindrical gauge bar and a drawing handle connected to the two ends of the telescopic shaft respectively, and the telescopic shaft comprises two parts of a thick shaft and a thin shaft, and a spring is sleeved on the thin shaft. The shell is connected with a turnover assembly, and the turnover assembly comprises a turnover plate and a turnover cylinder. The application has a reasonable structure, can accurately position the inner gear ring, ensures that the inner gear ring keeps the same phase when the inner gear ring needs to be clamped on the gear cutting machine for multiple times, improves the processing precision, reduces the waste rate, and is beneficial to batch production.

The utility model discloses a stainless steel pot trimming equipment, including machine table, rotation device, hold-down gear and cutting device, rotation device includes first frame, driving spindle, driven spindle and first drive mechanism, first frame is fixed connection on machine table, driving spindle is horizontally arranged and rotatablely connected on first frame, driven spindle is fixed on first drive mechanism. One end of the driving rotating shaft is fixedly connected with a first flange plate, the first driving mechanism is connected with the other end of the driving rotating shaft and can drive the driving rotating shaft to rotate, and the driven rotating shafts are used for sleeving stainless steel kettles and have different specifications; the first flange plate and the second flange plate are detachably and fixedly connected through bolts; the pressing device is used for pressing the stainless steel kettle onto the driven rotating shaft; the cutting device is used for cutting stainless steel kettles. The embodiment of the utility model can quickly adapt to the machining requirements of workpieces with different sizes.

The invention relates to the technical field of wire and cable processing equipment, in particular to a wire and cable copper wire drawing machine which comprises a machine table and the like, a pay-off device, a fixing plate and a pull rod are sequentially and fixedly mounted on the machine table from left to right, a wire drawing box is slidably connected to the position, close to the pull rod, of the machine table, and a fixed wire drawing module is fixedly connected to a side plate of the wire drawing box; the top end of the wire drawing box is fixedly connected with a lubricating liquid box, a hand pressure valve is installed between the wire drawing box and the lubricating liquid box, the hand pressure valve is connected with the fixed wire drawing module through a liquid pipe, and the hand pressure valve makes contact with the pull rod. Through the cooperative design of the hand pressure valve and the pull rod, automatic conveying control over lubricating liquid is achieved, in the wire drawing process, along with movement of the wire drawing box, the hand pressure valve is automatically opened, the lubricating liquid is accurately conveyed to the position where the wire drawing module is fixed, timely and effective lubrication is provided for a copper wire, and friction and abrasion between the copper wire and the wire drawing module are reduced.

The utility model belongs to the technical field of semiconductor manufacturing, and discloses a ring piece correction clamp. The ring piece correction clamp comprises a workbench, a positioning block, a locking device and a correction dial gauge, the workbench is used for bearing a ring piece, the positioning block is arranged on the workbench, a positioning groove is formed in the positioning block, one of the multiple protrusions of the ring piece is inserted into the positioning groove, and the locking device is arranged on the workbench relative to the positioning block. The locking device is used for abutting against the inner wall of the ring piece so as to fix the ring piece to the workbench, deformation of an end opening of the ring piece can be repaired through the correction spanner, the correction dial gauge on the workbench can indicate the roundness deviation of the ring piece in real time and provide clear roundness indication, an operator can accurately adjust the ring piece, the ring piece can reach the qualified standard, and the working efficiency is improved. Product abnormity is reduced, the rejection rate is reduced, and the stability of product machining quality is improved.

The utility model discloses a laser transfer film pasting and copying device which comprises a rack, the unwinding mechanism is used for unwinding a thin film from a reel and stably conveying the thin film to the next production link, the winding mechanism can wind the thin film into a roll material in a mechanical mode, the coating mechanism is used for coating the thin film, the drying mechanism is used for drying a coating, and the guide roller is used for guiding the thin film. The laminating mechanism is used for laminating the thin film; the curing mechanism is used for curing the thin film; the scraping plate is used for scraping redundant paint on the thin film; through the integrated design and the automatic production process, the production efficiency of laser transfer manufacturing is greatly improved; the stability and the plumpness of the laser effect are ensured by the coating mechanism and the laminating mechanism, and the overall quality of a product is improved; and due to the improvement of the production efficiency and the stability of the product quality, the production cost and the rejection rate are reduced.

This invention relates to the field of edge banding machine technology, specifically to an angle-adjustable edge banding machine end-cutting mechanism, including a conveying assembly, a frame, two oblique guide structures, and two angle-adjustable cutting assemblies. Two oblique supports are provided on the frame, tilting downwards from left to right, with one oblique support located to the upper right of the other. The angle-adjustable cutting assembly includes a first mounting base, a second mounting base, a motor displacement drive component, a motor, a blade, a first mounting base drive component, a third mounting base drive component, a third mounting base, a second mounting base drive component, and a fourth mounting base. Its advantages include rapid switching between straight and oblique cutting modes, no need for manual screw adjustment, significantly shortened changeover time, good cutting effect, significantly improved safety, the ability to reserve edge banding tape, reduced scrap rate in subsequent processes, stable structure, and high adjustment precision.

The utility model provides a cutting structure for MOS (Metal Oxide Semiconductor) packaging production, which relates to the technical field of cutting and comprises a transmission machine, a cutting assembly, a cutting mechanism and a cutting mechanism, and the cutting assembly is arranged at the upper part of the transmission machine; the linkage assembly synchronizes the working speed of the transmission machine and the working speed of the cutting assembly; the motor drives the conveyor and the cutting assembly through the linkage assembly to conduct automatic same-speed conveying and cutting actions, the linkage assembly comprises a first rotating wheel fixed to the output end of the motor, and the first rotating wheel is in belt transmission with a double-layer rotating wheel fixed to one end of a driving shaft of the conveyor. The double-layer rotating wheel is further in belt transmission with a second rotating wheel fixed to a driving part of the cutting assembly. By means of the technical scheme, the linkage assembly is driven by the motor to synchronize movement of the transmission machine and the cutting assembly, it is ensured that the transmission precision and the cutting precision of the base materials are consistent, the rolling distance of the cutting knife is adjusted through the sliding plate and the screw, and different base material size requirements are met.

The utility model relates to valve machining technical field, especially a new type valve cover. Including base, annular pipe, reinforcing surface, fixed ring and annular groove, the annular groove sets up in the base body center position, two fixed ring respectively set up on the base body, and two fixed ring respectively are close to base body both ends setting, the annular pipe sets up in the base upward operation surface. Including raw material detection, heating and material preparation, making embryo and forging, intermediate detection, trimming and shaping, cooling and cutting, welding and processing, final detection, cleaning and polishing, equipment maintenance, the utility model has the beneficial effect that: through the close connection of annular pipe and annular groove, the sealing performance of valve cover is promoted, effectively prevents medium leakage, through strict raw material detection and each link quality detection, can effectively improve the quality of valve cover, enhances its sealing property and pressure resistance, reduces the occurrence of product failure and leakage problem.

The utility model relates to the technical field of vehicle-mounted electric control cover plate die-casting, and discloses a new energy vehicle-mounted electric control cover plate die-casting device which comprises a die-casting device body, a baffle is fixedly connected to the left side of the top of the die-casting device body, a die-casting mechanism is arranged at the top of the die-casting device body, and a base is fixedly connected to the bottom of the die-casting device body. A collecting mechanism is arranged at the bottom of the die-casting device body, the die-casting mechanism comprises a die-casting assembly and a stirring assembly, the die-casting assembly is arranged at the top of the die-casting device body, and during use, through the arranged die-casting mechanism, when a vehicle-mounted electric control cover plate needs to be subjected to die-casting work, a first servo motor drives a first threaded rod to rotate; the hydraulic cylinder pushes the push plate, raw materials in the conveying pipe stably and accurately enter the first die, the right side of the second die makes close contact with the left side of the first die, and the sealing performance of the dies in the die casting process is guaranteed.

The utility model discloses a carbon fiber winding device, including cross -motion mechanism, winding mechanism, yarn spreading mechanism etc. The spacing roller of yarn spreading mechanism, deflection roller, flat roll cross -setting, cooperate cross -motion mechanism servo drive screw rod subassembly, realize different K number carbon silk multi -angle tension regulation and accurate flattening, evenly cover 100-500mm bobbin, and winding mechanism passes through the slidable upper slide and the winding shaft recess snap, and adapts to multi -specification bobbin, and yarn spreading roller subassembly matches different carbon silk technology. Servo motor drive, bearing low friction rotation and sensor stroke protection promote the stability of operation, and the clamping of silk piece subassembly, button board etc. Enhance the operation convenience and equipment rigidity. The device solves the problem of traditional equipment tension instability, poor versatility etc., reduces the scrap rate, and improves the winding efficiency, and is suitable for the precision production of high -end equipment manufacturing field high -performance carbon fiber.

The utility model relates to the technical field of pull ring production, in particular to ultrathin pull ring continuous production equipment with a tension control function. The equipment is mainly composed of a rack, a discharging winding roller, an adjusting roller, a horizontal roller, an upper stamping die, a lower stamping die, a tension adjusting block, a motor and the like, raw materials are placed on the discharging winding roller, the adjusting roller and the horizontal roller guide the materials to be conveyed, the upper stamping die and the lower stamping die are responsible for pull ring stamping forming, and the tension adjusting block regulates and controls the tension of the materials. The motor drives the waste roller and provides power for the conveying belt through belt transmission, and a spring and a sliding block in the tension adjusting block are matched with the tension adjusting switch to achieve accurate tension adjustment. The tension control device has the beneficial effects that the product quality can be stabilized, the defects of the pull ring caused by the tension problem are reduced through accurate tension control, the product percent of pass is improved, and meanwhile, the continuous production process of equipment is matched with an efficient waste treatment and finished product collection mode, so that the production efficiency is greatly improved, the production cost is reduced, and the market competitiveness of enterprises is enhanced.

This utility model relates to the field of coating processing technology and discloses a tension-adjustable water transfer paper coating device, including a machine base. An infrared receiver and an infrared transmitter are symmetrically fixedly connected to the top left side of the machine base. A mounting frame is fixedly connected to the top inner wall of the machine base. A cylinder is fixedly connected to the upper inside of the mounting frame. Two third slide grooves are symmetrically fixedly connected to the upper inside of the mounting frame. A second slider is slidably connected to the inner wall of each third slide groove. A mounting plate is fixedly connected to the bottom surface of the cylinder. The top surface of the mounting plate is fixedly connected to the bottom of each second slider. A blade is installed on the bottom left side of the mounting plate. A support column is fixedly connected to the bottom of the other side of the mounting plate. A second spring is sleeved on the outer wall of the support column. The bottom of the support column is slidably connected to the inside of the rubber roller to prevent unwound material from detaching from the roller during rewinding, thus preventing material deformation and reducing scrap rate.

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.

An overlock machine for processing mattresses includes: a sewing machine, a worktable, a mattress support platform, a conveyor belt, a transmission guide device, a vacuum adsorption structure, and a placement area. The sewing machine is fixed to the worktable, which is symmetrically arranged on both sides of the mattress support platform. The conveyor belt is mounted on the mattress support platform. The transmission guide device is located between the mattress support platform and the worktable. The vacuum adsorption structure is located below the mattress support platform. The placement area is connected to the end of the mattress support platform. The transmission guide device includes: a baffle, a baffle bracket, rollers, a fixing plate, and an adjusting screw. Compared with traditional technologies, this invention, tailored to the characteristics of mattresses, adds a transmission structure, a transmission guide device, and a vacuum adsorption structure. Through automated movement, it ensures a certain fixing force, reducing the difficulty of worker operation, improving the straightness of the overlock process, and reducing the scrap rate.

A side panel assembly and a vehicle are disclosed. The side panel assembly (100) includes an outer side panel (10) and an inner side panel (20) sequentially arranged and fixedly connected along the direction from the outer side of the vehicle door to the inner side. The side of the inner side panel (10) away from the outer side panel (20) is connected to the side assembly (200). The lower ends of the outer side panel (20) and the inner side panel (10) together define a mounting structure (30) for mounting a window frame sealing strip (60). A vehicle including the above-described side panel assembly (100) is also provided. The side panel assembly (100) and the vehicle can improve the aesthetics of the vehicle and reduce costs.

The utility model provides a multi-station press machining system, and belongs to the technical field of machining equipment. The problem that in the prior art, a press is low in automation degree is solved. The multi-station press machining system comprises a rack and a rotating station module connected to the rack, and the rotating station module comprises a rotating disc and a power assembly used for driving the rotating disc to rotate in an indexing mode; the at least two workpiece fixing modules are connected to the rotary table, and each workpiece fixing module is provided with a machining station used for containing a workpiece; the stamping execution module is connected to the rack, and the stamping execution module comprises a stamping execution piece and a stamping driving piece used for driving the stamping execution piece to move up and down in the vertical direction; and the at least one workpiece transfer module is connected to the rack, and the output end of the station transfer module is provided with a clamping jaw used for feeding unmachined workpieces and discharging machined workpieces. The device has the advantages of high efficiency and automation.

The utility model provides a film tearing and exhausting synchronizing device of an automatic film sticking machine, which comprises a machine body, a film tearing mechanism and a pushing and exhausting mechanism, a top plate of the machine body is provided with a working area and a positioning block, the working area can be used for positioning and fixing a product to be subjected to film sticking, and the positioning block is arranged on the outer side of the working area and can be used for positioning a film sticking material; the film tearing mechanism is arranged at the rear end of the machine body and can pull the second release film to be gradually separated from the protective film from front to back; the pushing and exhausting mechanism is arranged on the machine body in a front-back moving mode and can synchronously push and press the separated protective film to be attached to a product to be subjected to film attaching from front to back in the separation process of the second release film and the protective film of the film attaching material, and air below the attaching face of the protective film is exhausted. By the adoption of the film pasting device, automatic film pasting operation is achieved, bubbles and dust can be prevented from entering the film pasting device to a great extent, the requirements for reworking, film tearing and re-pasting are reduced, time is saved, and the rejection rate of protective films is reduced.

This utility model relates to the field of glass processing technology, and in particular to a fully automatic integrated glass bonding and gluing machine. The fully automatic integrated glass bonding and gluing machine includes: a base, a glass body placed on top of the base, an electric push rod fixedly connected to the top of the base, an extrusion plate fixedly connected to the output end of the electric push rod, adjusting plates equidistantly installed on the top of the base, a first clamping plate fixedly connected to the side of the adjusting plate closest to the glass body, a second clamping plate fixedly connected to the side of the adjusting plate closest to the glass body, a scraper plate installed between multiple sets of corresponding first and second clamping plates, a driving component for moving the adjusting plates, a reciprocating component for reciprocating movement of the scraper plate installed inside the multiple sets of first clamping plates, and an adjusting component for changing the position of the adjusting plates. The fully automatic integrated glass bonding and gluing machine provided by this utility model has the advantages of precise clamping, automatic scraping, and flexible adjustment.

This invention discloses a medium carbon steel for steering screws in new energy vehicles and its production method. The chemical composition of the medium carbon steel, by mass percentage, is as follows: C: 0.45%~0.70%, Si: 0.25%~0.55%, Mn: 0.45%~1.05%, Cr: ≤0.40%, Mo≤0.40%, Ni≤0.40%, P≤0.035%, S: 0.015%~0.035%, O≤0.0012%, with the balance being Fe and unavoidable impurities. The production method includes a complete process: molten iron pretreatment – ​​converter smelting – LF refining – RH furnace vacuum degassing – continuous casting – rolling – quenching and tempering – finishing – sub-critical quenching – low-temperature tempering. By controlling the composition to reduce the addition of expensive alloying elements, and through a composite heat treatment of "quenching and tempering + sub-critical quenching + low-temperature tempering," a hardness gradient of ≥60HRC on the surface and 22~28HRC in the core is achieved, with no decarburized layer on the surface. Simultaneously, strict control of non-metallic inclusions enhances the purity of the steel. This invention's product is compatible with cyclone milling processes, exhibits minimal quenching deformation, and can be straightened, meeting the high precision and long service life requirements of steering screws in new energy vehicles.

The utility model relates to the technical field of round steel processing, in particular to a round steel shearing device which comprises a rack and a bearing frame, a transfer frame is arranged at the top of the rack, a plurality of roll shafts are installed in the transfer frame, a first servo air cylinder is arranged at the top of the bearing frame, and a second servo air cylinder is installed on a piston rod of the first servo air cylinder. A piston rod of the second servo air cylinder is provided with a first fixing plate, the side portion of the second servo air cylinder is provided with a second fixing plate connected with the bearing frame in a fastened mode, and the first fixing plate and the second fixing plate are used for stably clamping round steel. And a shearing tool is rotationally installed at the top of the bearing frame, and a storage barrel is arranged at the bottom of the bearing frame and used for storing residues generated after the round steel is sheared off. According to the round steel shearing device, the working efficiency of round steel machining is improved, the working time of shearing round steel is shortened, the requirement for batch machining can be met, the working precision of round steel machining is further improved, the rejection rate of round steel machining is reduced, and therefore it is guaranteed that round steel machining meets the production standard.

The multi-point distribution type horizontal clamping fixture comprises a base, the top of the base is connected with a machining table, two sets of sliding grooves are formed in the center of the top of the machining table, moving blocks are connected into the sliding grooves in a sliding mode, and clamping blocks used for clamping the thin plates are arranged at the tops of the moving blocks. A plurality of clamping rods are arranged in the clamping block, springs are connected to the ends, located in the clamping block, of the clamping rods, one ends of the springs are fixed into the clamping block through fixing pieces, the fixing pieces comprise bolts and fixing plates, the bolts are rotationally connected into the clamping block, one ends of the springs are connected with the fixing plates, and the ends, located in the clamping block, of the bolts are in threaded connection with the fixing plates. The clamp is connected with the spring through the bolt and the fixing plate, the bolt is rotationally connected into the clamping block and is in threaded connection with the fixing plate, when the elasticity of the spring is reduced, the fixing plate and the spring can be pulled out of the clamping block only by screwing the bolt, the spring can be conveniently and independently replaced, the maintenance cost is reduced, and the production efficiency is improved.

This invention relates to the field of gray cast iron material preparation technology, and particularly to a method for preparing multi-alloy synergistically strengthened gray cast iron, comprising: adding steel raw materials to a smelting apparatus and heating to form molten iron; adding a chromium alloy to the molten iron, heating and holding at that temperature to form a basic mixture; determining the degree of furnace lining peeling based on the vibration frequency of the smelting apparatus, and determining the overheating risk level of the basic mixture based on the degree of furnace lining peeling; determining a target heating temperature based on the overheating risk level; determining the eddy current risk level based on the actual rotation speed; adjusting the stirring intensity during the smelting process based on the eddy current risk level; detecting the mixing ratio of the basic mixture and adjusting the amount of steel raw materials or the chromium alloy added to form a target solution; and simultaneously adding manganese nitride, alloyed tin, and ferrous sulfide to the target solution in a specified ratio to form multi-alloy synergistically strengthened gray cast iron. This invention improves the strength, toughness, fluidity, and resistance to solidification defects of gray cast iron.

The present application belongs to the technical field of temperature control, and particularly relates to a temperature self-adaptive control method for a paperboard drying production line based on PID, which comprises the following steps: collecting the oven temperature and the production line speed, and obtaining a smooth speed through filtering; then, the speed disturbance intensity is calculated by combining the speed change rate, the basic inertia constant and the logarithmic weighting factor, and the thermal response lag sensitivity representing the system vulnerability is constructed according to the temperature deviation; subsequently, the adaptive feedforward compensation flux is generated by fusing the basic linear compensation and the dynamic nonlinear compensation based on the lag sensitivity; finally, the adaptive feedforward compensation flux is superimposed with the PID feedback output to drive the heating mechanism. By quantifying the nonlinear impact of the speed change rate and the thermal lag characteristics of the system, the present application solves the lag and overshoot problems of the traditional control under the variable speed working condition, and improves the temperature control precision and stability of the production line.

This utility model discloses a fixture for testing the airtightness of automotive intercoolers, including a fixed base plate and, sequentially arranged along its length, a floating clamping assembly, a limiting and fixing assembly, a detection and positioning assembly, and a floating detection assembly. The floating clamping assembly achieves adaptive axial clamping via a lead screw slide and a pressure sensor; the limiting and fixing assembly uses an elbow clamp for elastic clamping; the detection and positioning assembly, in conjunction with the floating detection assembly, utilizes a ball joint structure, a displacement sensor, and a quick-connect connector to compensate for position and angular deviations at the detection port. Combined with an airtightness tester and controller, it achieves automated clamping, positioning, and high-precision testing, solving the problems of poor versatility, easy damage to workpieces, and low detection accuracy of traditional fixtures, thereby improving production efficiency and product quality.

The application provides a production method of high-corrosion-resistance and high-strength galvanized steel strand, relates to the technical field of hot-dip plating, and comprises the following steps: collecting hot-dip plating related characteristic parameters and setting basic hot-dip plating time; pre-processing the hot-dip plating related characteristic parameters and outputting a hot-dip plating calibration coefficient; establishing a coupling formula and obtaining a hot-dip plating calibration time; collecting strength interference characteristic parameters; based on the collected strength interference characteristic parameters and the obtained actual hot-dip plating required time, calculating a tensile strength prediction score of the produced galvanized steel strand, and determining the eligibility of the galvanized steel strand prepared under the current working condition parameters. The application calculates a most suitable galvanizing time, ensures that the zinc layer is fully penetrated, and avoids excessive reaction to cause the steel strand to be brittle. Meanwhile, the application can predict whether the tensile strength of the finished product is qualified before production, realizes dynamic optimization, early warning and self-learning in the whole process, and effectively reduces the waste product rate.

The utility model relates to motor shell technical field especially relates to a split type extruded aluminium heat dissipation shell structure of inner rotation motor, including the heat dissipation shell is combined by a plurality of small shell, the small shell one end all is provided with the clamping slot, and the small shell other end all is provided with the clamping strip, the utility model discloses a small shell on the clamping strip is installed to the inside of adjacent clamping slot in proper order, so that small shell can be in proper order circular distribution splicing into heat dissipation shell, so that heat dissipation shell whole is split type structure, and it is convenient to dismantle and install, so when heat dissipation shell appears damage, it is convenient to replace alone to the small shell of a place or a few places, and when processing heat dissipation shell, can divide heat dissipation shell into a plurality of small shell and carry out split type processing, then carry out combination again, so that when processing can adopt small tonnage extruded aluminium equipment and process, more convenient, can reduce the scrap rate and material production consumption.