38results about How to "Meet process requirements" patented technology

The invention relates to the technical field of organic synthesis, in particular to a method and device for preparing 4-methyl-1-pentene, and the method comprises the following steps: (1) pretreating a raw material containing propylene and an inert substance, and carrying out heat exchange on the obtained refined raw material to obtain a heat-exchanged raw material; (2) carrying out dimerization reaction on the raw material subjected to heat exchange and a catalyst in the presence of inert gas, wherein the obtained reaction product is divided into a part of reaction product and a residual part of reaction product; (3) cooling the part of the reaction product as a heat exchange medium, and carrying out heat exchange with the refined raw material to obtain a heat-exchanged product; (4) separating a mixed material of the rest reaction product and the product after heat exchange to obtain a light component and a heavy component; and carrying out rectification on the heavy component to obtain the 4-methyl-1-pentene. According to the method, by controlling the reaction temperature rise, the stable reaction temperature and the uniform reaction process are ensured, and the raw material conversion rate and the product selectivity are further improved.

The utility model discloses an anisotropic conductive film pasting machine, including ACF pasting machine body, the outer wall fixed connection of ACF pasting machine body has workstation, the top fixed connection of workstation has back type support spare, the top fixed connection of back type support spare has the guide plate, the top of guide plate is equipped with two T type long grooves, and the inner wall of two T type long grooves all are connected with T type block slidingly. The utility model discloses a plurality of connecting rod pressing mechanism of electric push rod drive, and the stable fixing of substrate is realized through the synchronous down pressure of four rubber sleeves, effectively prevents the displacement problem in the process of pasting, and significantly improves the pasting accuracy, and T type long groove and T type block sliding structure cooperation movable pasting board, realize the quick adjustment of substrate position, satisfy the technological demand of different pasting position, adopt the cooperation of sliding slot type L type board with adjustable nut, make two L type boards can be according to different size substrate flexible adjustment fixed position, and the equipment adaptability is improved greatly.

This utility model relates to an ammonia fuel regenerative combustion device, belonging to the field of energy conservation and emission reduction. It includes an ammonia fuel regenerative chamber and a combustion-supporting chamber, both connected to the furnace via connecting ports. The ammonia fuel regenerative chamber is equipped with a three-way reversing valve for introducing ammonia fuel and discharging flue gas. The ammonia fuel regenerative chamber contains an ammonia cracking regenerative body, a denitrification reducing agent injector, and a denitrification regenerative body. The porosity of both the ammonia cracking and denitrification regenerative bodies gradually decreases along the flue gas outflow (ammonia inflow) direction. The combustion-supporting chamber has a combustion-supporting gas inlet. The angle of the denitrification reducing agent injector is adjustable. An ammonia cracking catalyst is mounted on the ceramic skeleton of the ammonia cracking regenerative body. An SCR reduction catalyst is mounted on the ceramic skeleton of the denitrification regenerative body. This utility model can improve flame stability, increase ammonia cracking efficiency and denitrification efficiency, and reduce NO₂ levels in the combustion device. x Emissions will be reduced to achieve zero carbon emissions from the heating furnace.

This invention provides a painting production line for automotive control arms, belonging to the field of automotive parts processing technology. It includes a frame, a circulating traction mechanism, a preheating furnace, a painting mechanism, and a baking furnace. The circulating traction mechanism includes two parallel traction chains, with several horizontal tie rods evenly spaced between them. The tie rods are rotatably connected to the chain link pins of the traction chains. The traction chains are pulled by several guide sprockets to form a preheating straight section adapted to the preheating furnace, a first vertical painting traction section, a horizontal painting traction section, a second vertical painting traction section, and a baking straight section adapted to the baking furnace. The preheating straight section, the horizontal painting traction section, and the baking straight section are all in a horizontal traction state. The first and second vertical painting traction sections are parallel and vertical. The tie rods are equipped with hangers for suspending workpieces. Workpieces are loaded before the preheating straight section and unloaded after the baking straight section. This invention has the advantages of low energy consumption and high efficiency.

This invention provides a design method for a four-way valve-controlled AGC cylinder for planar shape control in medium-thick plate rolling mills, relating to the fields of hydraulic control and mechanical design technology. The method first calculates the piston diameter of the AGC cylinder based on the maximum rolling force of the mill and the maximum design working pressure of the AGC cylinder. The calculated piston diameter is then rounded upwards to determine the piston diameter D. Next, based on the relationship between the steady-state retraction speed of the AGC cylinder and the piston rod diameter, and the piston diameter D, the piston rod diameter is calculated. A lower limit for the piston rod diameter is calculated based on the strength requirements of the piston rod during rolling. Finally, the final piston rod diameter d is determined by the larger of the calculated piston rod diameter and the lower limit. The AGC cylinder designed based on this invention is beneficial for meeting the process requirements of hot rolling planar shape control and improving production line efficiency.

A forming method of a semiconductor structure comprises the steps that a substrate comprises a first region and a second region; modifying the second core material layer in the second region to form a third core material layer having an etching selection ratio with the second core material layer; forming a first core material layer; patterning the first core material layer to form a first core layer; forming a first side wall; patterning the second core material layer and the third core material layer in the second region to form a second core layer and a third core layer; forming a second side wall; forming a third protection layer; patterning the third core layer by taking the third protective layer as a mask; the second side walls and the third core layer are used as masks to pattern the target material layer, first target structures and second target structures are formed, and the pitch of the adjacent first target structures is smaller than or equal to the pitch of the adjacent second target structures. The SAQP process and the SALELE process are formed at the same time, and the design freedom degree in the patterning process is improved.

The invention relates to the technical field of machining, and provides a flexible machining system and a shell machining method.The flexible machining system comprises a first numerical control vertical lathe, a second numerical control vertical lathe, a first horizontal machining center, a first pound press and a first laser marking machine; the first horizontal machining center is provided with a face milling cutter, an inner hole milling cutter, a side face groove milling cutter and a facing head. A horizontal machining center clamp is arranged on the first horizontal machining center. The device is complete in type so as to meet various process requirements, the machining efficiency and the product precision are improved, and the machining difficulty of the inner cavity inclined hole is reduced.

The invention relates to a method for continuously preparing 1, 2-propylene glycol and 1, 3-propylene glycol and application of the method, and belongs to the field of preparation of propylene glycol. In a hydroformylation reaction unit, vinyl acetate, synthesis gas and a first catalyst are subjected to a contact reaction; cooling a part of the hydroformylation reaction product, returning to the hydroformylation reaction to control the reaction temperature, and carrying out pressure reduction on the other part of the reaction product to separate out crude acetoxypropionaldehyde; the crude acetoxypropionaldehyde and hydrogen are subjected to a contact reaction on a second catalyst, water is used as a solvent, the reaction product continues to be subjected to a contact reaction with a third catalyst solution, and 1, 2-propylene glycol, 1, 3-propylene glycol and acetic acid are obtained after separation treatment. The method is safer in raw materials, simple in process, easy to operate, diversified in product composition and high in market adaptability.

The utility model provides an extension device which comprises a reflecting plate and a plug, the reflecting plate is provided with a first surface facing a bell jar, the first surface of the reflecting plate is provided with a plurality of lamp tubes, the reflecting plate is provided with heat dissipation through holes, and the plug is inserted into the heat dissipation through holes. The heat dissipation through holes are formed in the two sides of the vertical projection of at least one lamp tube on the reflecting plate, and plugs can be inserted into the heat dissipation through holes to block the heat dissipation through holes so as to adjust the heat dissipation capacity of the reflecting plate. By adjusting the distribution of the plugs in the heat dissipation through holes, the reflecting plate can ensure that the temperature of the graphite base and the wafer below the bell jar meets the process requirement, and meanwhile, the temperature of the surface of the bell jar is effectively reduced, so that a coating on the inner wall of the bell jar is reduced, and the product quality is further improved.

The pouring system for continuous rheological extrusion of liquid nonferrous metals includes a melting furnace, a holding furnace, a flow channel docking device, a flow channel device, a continuous rheological extruder, a cooling device, a guide frame and a storage device. The melting furnace and the holding furnace are electromagnetic induction furnaces. The bottom of the crucible is provided with a bottom channel, and the bottom channel is opened and closed by a plunger valve. The bottom channel of the crucible is connected to the flow channel device with a heat preservation function through a flow channel docking device. The melting furnace and the holding furnace, as well as the holding furnace and the continuous rheological extruder, are connected through the flow channel device. The cooling device, the guide frame and the storage device are sequentially arranged after the continuous rheological extruder. The beneficial effect is that the problems of unstable pouring temperature and pouring speed in the continuous rheological extrusion production process are solved, and it has the advantages of being able to refine grains, reduce casting defects, shorten the process, and be energy-efficient; strong adaptability, unlimited product length, good quality; small investment, and low production cost.

The utility model relates to the technical field of die bonders, in particular to a die bonding mechanism, which comprises an adjusting assembly, a ZR motor fixed on the adjusting assembly, a die bonding arm fixed at the position of the output end of the ZR motor, an adsorption assembly rotatably mounted on the die bonding arm, and a fixing assembly fixed at the position of the output end of the ZR motor, the output end of the ZR motor drives the adsorption assembly to rotate on the die bonding arm, and the ZR motor can drive the vertical movement of the die bonding arm and the rotation of the adsorption assembly at the same time, thereby simplifying the overall structure of the die bonding mechanism, reducing the mechanical inertia, and more accurately controlling the vertical position of the die bonding arm and the rotation angle of the adsorption assembly. Therefore, the positioning of the wafer in the adsorption, transfer and placement process is more accurate, the die bonding quality and the product yield are improved, the position of the adsorption assembly connected with the adjusting assembly can be finely adjusted by the adjusting assembly, different die bonding process requirements and working scenes are adapted, and the die bonding mechanism has higher universality and flexibility.

This invention belongs to the technical field of thin film drying equipment, and relates to a thin film drying device and method. The thin film drying device includes a substrate conveying assembly and an air-knife film drying assembly. The substrate conveying assembly conveys the substrate, and the air-knife film drying assembly dries the wet film on the substrate surface. The air-knife film drying assembly includes an inlet / outlet section, a control section, an air outlet section, an air velocity sensing system, and an air velocity control system. The control section has a control duct and multiple control components. Each control component includes an air valve and a drive component. The air valve is disposed within the control duct, and the drive component controls the rotation of the air valve to adjust the airflow angle and air velocity at the inlet / outlet. The air velocity sensing system and the air velocity control system are interconnected to monitor the air velocity at the air outlet. The air velocity control system controls the control components based on the monitoring signal from the air velocity sensing system to adjust the rotation angle of the air valve within the control duct. This invention reduces the impact of airflow on wet film formation, reduces film formation defects, and improves film quality.

A forming method of a semiconductor structure comprises the steps that a substrate comprises a first region and a second region; patterning the first core material layer to form a first core layer; forming a first side wall; patterning the second core material layer to form a second core layer; performing modification treatment on the second core layer exposed in the second region to form a third core layer having an etching selection ratio with the remaining second core layer; forming a second side wall covering the side walls of the second core layer and the third core layer; the second side walls and the third core layer are used as masks to pattern the target material layer, first target structures and second target structures are formed, and the pitch of the adjacent first target structures is smaller than or equal to the pitch of the adjacent second target structures. According to the invention, the SAQP process and the SALELE process are formed at the same time, the degree of freedom of design in the patterning process is improved, and a part of redundant first target structures in the first region adopting the SAQP process can be removed under the condition that a photomask and process steps are not increased.

The invention relates to the technical field of ferrous metallurgy, in particular to a low-carbon zero-carbon ironmaking device and method.The low-carbon zero-carbon ironmaking device comprises a fluidized bed system and a smelting reduction furnace system, and the fluidized bed system comprises a fluidized bed feeding pipe, a fluidized bed discharging pipe, a fluidized bed air inlet and a fluidized bed air outlet; the fluidized bed system is a multi-stage fluidized bed or a multi-layer fluidized bed, when the fluidized bed system is the multi-stage fluidized bed, at least one stage of fluidized bed is a bubbling fluidized bed, and when the fluidized bed system is the multi-layer fluidized bed, at least one fluidized bed layer is a bubbling bed layer; the smelting reduction furnace system comprises at least one smelting reduction furnace; and the fluidized bed discharge pipe is connected with a solid material spray gun of the smelting reduction furnace. According to the device and the method, the carbon reducing agent and the hydrogen reducing agent can be simultaneously applied in any proportion, and the process requirements of the transition stage of carbon smelting and hydrogen smelting are met.

The utility model relates to the technical field of semiconductor processing equipment, concretely relates to a grid device and ion source equipment. The grid device includes conducting assembly, screen grid, acceleration grid, deceleration grid and grid mounting plate, screen grid, acceleration grid and deceleration grid are sequentially laminated and mutually spaced insulation settings, and all are installed in the open end of external ion source shell through grid mounting plate, screen grid, acceleration grid and deceleration grid all are insulated with grid mounting plate setting, and deceleration grid is close to grid mounting plate setting and is electrically connected with external current detection module through conducting assembly to output the current for detecting. The application is through the insulation setting of screen grid, acceleration grid, deceleration grid with grid mounting plate, and adds conducting assembly, and deceleration grid can be electrically connected with external current detection module through conducting assembly, and the current of deceleration grid is detected, so that the performance of ion source is more accurately evaluated, and the increasingly higher process requirement and stability requirement are satisfied.

The utility model discloses a semiconductor crystal growth equipment gas supply system and a crystal growth experiment plant, which comprise a crystal growth furnace body module, an intelligent heating module, a bracket module, an auxiliary heating vessel module, a metal particle filtering module, a ball valve secondary pressure reduction module and an industrial gas supply module, the intelligent heating module is used for heating raw materials to realize crystal growth; the crystal growth furnace body module lifts the intelligent heating module from bottom to top, the intelligent heating module is arranged at the top end of the crystal growth furnace body module, the intelligent heating module is communicated with the metal particle filtering module, the metal particle filtering module is connected with the ball valve secondary pressure reduction module, and the ball valve secondary pressure reduction module is connected with the industrial gas supply module. The device has the beneficial effects that on one hand, precise control over parameters such as gas flow, pressure, purity and mixing proportion can be achieved, on the other hand, it can be ensured that a gas conveying pipeline is clean and free of leakage, and then the process requirement for semiconductor crystal growth is met.

The present invention provides a device and method for rapidly growing large-sized, high-quality cubic silicon carbide single crystals, belonging to the field of crystal growth technology. The device includes a crucible assembly, a seed crystal assembly, a heating assembly arranged outside the crucible assembly, and a heat preservation assembly located between the heating assembly and the crucible assembly; the crucible assembly includes a crucible and a pushing and rotating component arranged below the crucible for pushing and rotating the crucible; the seed crystal assembly includes a seed crystal holder and a lifting and rotating component connected by a mortise and tenon structure, and a locking component for locking the mortise and tenon structure; the lifting and rotating component is used to lift and rotate the seed crystal holder; and a fixing component for fixing a silicon carbide raw material rod is arranged around the seed crystal holder. The device provided by the present invention can effectively overcome the problems of high melt viscosity, poor fluidity, low solute transfer rate, etc., which are caused by low growth temperature and seriously limit the growth speed and quality of the crystal, and meet the process requirements for rapidly growing large-sized cubic silicon carbide single crystals.

The utility model discloses a chemical water treatment device for a thermal power plant, which belongs to the technical field of chemical water treatment equipment for thermal power plants and comprises a support bottom plate, a horizontal drum and a plurality of groups of filter units. Racks suitable for the ends of the rollers are arranged at the two ends of the supporting bottom plate. The two ends of the horizontal roller are open, the horizontal roller is provided with a containing cavity with the preset operation length, and the horizontal roller is rotationally arranged between the two racks and has the preset vertical distance with the supporting operation face of the supporting bottom plate. The roller is connected with a rotary drive, the rotary drive is suitable for driving the roller to rotate relative to the rack, and the rack is provided with a sealing cover plate for sealing the corresponding end of the roller; the corresponding sealing cover plates are respectively provided with a water inlet pipe and a water outlet pipe suitable for water inlet and outlet of the roller; the multiple groups of filtering units are arranged at intervals along the water inlet and outlet direction of the roller and are suitable for filtering water in the roller, so that dynamic blockage prevention of the filter screen is realized, the filtering flux is maintained, the manual cleaning frequency is reduced, and the efficiency of raw water entering the next treatment stage is improved.

The utility model discloses organic phase preparation and reduced pressure distillation equipment which comprises a distillation tank body, a separation assembly is arranged on the distillation tank body, and the distillation tank body is communicated with a condenser; the separation assembly comprises an extension pipe communicated with the condenser, the lower end of the extension pipe is communicated with a recovery tank, one side of the extension pipe is communicated with a separation pipe, a functional joint is arranged at the position, close to the separation pipe, of the extension pipe, and a water pan is slidably connected into the separation pipe. According to the utility model, through the arrangement of the separation assembly, when reduced pressure distillation is carried out, the outlet pipe slides firstly, the water pan is transversely arranged at the functional section, the output obtained by distillation is guided into the detection device, the detection device is used for carrying out purity detection on the output so as to judge whether the process requirement is met or not, and after the purity meets the requirement, the outlet pipe slides again, so that the output is separated. And the output can enter the recovery tank along the extension pipe.

The invention discloses an automatic filling combined production line and process for large and small bottles. The automatic filling combined production line comprises a first conveying line and a second conveying line which are arranged in parallel; the large bottle feeding unit, the first filling unit and the first cap screwing unit are sequentially arranged along the first conveying line; the small bottle feeding unit, the second filling unit and the second cap screwing unit are sequentially arranged along the second conveying line; the large and small bottle combining mechanism is arranged at the common tail end of the first conveying line and the second conveying line; the first carrying mechanism and the second carrying mechanism are used for carrying the bottles at the tail ends of the first conveying line and the second conveying line to the large and small bottle combination mechanism respectively; the discharging conveying line is positioned beside the large and small bottle combining mechanism; and the third carrying mechanism is used for taking out the combined large and small bottles from the large and small bottle combining mechanism and placing the combined large and small bottles on the discharging conveying line. Independent filling of large bottles and small bottles and automatic combined output of the large bottles and the small bottles can be efficiently achieved, the production efficiency is greatly improved, and the requirements of the production technology are met.

The application discloses a grape grading and sorting and automatic weight matching equipment and method based on three-stage RFID tracking, and the equipment comprises an RFID tray, a visual and weight integrated inspection unit, a three-stage RFID identification device, a to-be-queued buffer area, a main sorting line, a universal wheel transmission device and a sorting and packaging table, each RFID tray serves as a record carrier, and the three-stage RFID identification device serves as a data identification device. The application realizes full-automatic grading and weight matching of grapes, realizes double-dimension detection of appearance and weight through the visual and weight integrated inspection unit, realizes seamless tracking and error-proof checking through the three-stage RFID read-only identification node, realizes automatic weight matching combination of grape clusters through the to-be-queued buffer area and a dynamic queuing algorithm, completely eliminates the operation link of repeatedly picking up grape clusters by manual operation, realizes impact-free flexible sorting and conveying of the tray through the main sorting line and the universal wheel transmission device, and thus the mechanical damage rate and the labor cost are greatly reduced.

This invention discloses a frequency converter control method based on multi-speed superposition and number selection, relating to the field of frequency converter drive control technology. It includes: pre-setting N digital input terminals in the frequency converter, configuring a base frequency value and a time-varying waveform function for each terminal; configuring the final output frequency as the sum of the products of the base frequency value and the waveform function of each activated terminal; determining the activation sequence of each terminal according to the target process curve; the frequency converter calculating and superimposing the instantaneous frequency contribution value of each activated terminal in real time to generate the final output frequency to drive the motor. This invention replaces traditional fixed frequency values ​​with waveform functions such as ramp functions, pulse functions, and exponential decay functions, allowing the synthesis of complex process speed curves using simple digital input terminals. While ensuring control performance, it significantly reduces hardware costs and can be widely applied in injection molding machines, die-casting machines, textile machinery, and other applications.

The application relates to the technical field of temporary wafer bonding, in particular to a high-precision wafer alignment device which mainly solves the technical problem of low precision of a wafer alignment device. The device comprises a rack, a visual mechanism, an adsorption table plate, an XYZ three-axis platform, a rotating platform and an adjusting platform. The rack comprises a base and a gantry, the visual mechanism is installed above the crossbeam of the gantry, the adsorption table plate is fixed below the crossbeam of the gantry, the XYZ three-axis platform is installed on the base and located at the inner side of the gantry, the rotating platform is installed on the XYZ three-axis platform, and the adjusting platform comprises a bottom plate, a top plate and a leveling assembly. The bottom plate is fixed on the rotating platform, and the leveling assembly is connected between the bottom plate and the top plate and is circumferentially spaced apart and distributed with multiple sets. On one hand, the device can realize position calibration of a lower wafer and an upper wafer, and on the other hand, the device can avoid precision reduction caused by taking down, transferring and placing, and the two aspects can guarantee the precision when the upper and lower wafers are finally fixed, so that the process requirement is met.

The utility model discloses a gas transmission device and a process chamber of semiconductor process equipment, and relates to the field of semiconductors. A gas conveying device is applied to a process chamber of semiconductor process equipment and comprises a gas inlet header pipe, a plurality of first gas inlet branch pipes, a plurality of gas inlet nozzles and a first flow proportion control element. The air inlet header pipe is connected with the air inlet end of the first flow proportion control element, the multiple first air inlet branch pipes are connected with the air outlet end of the first flow proportion control element, and the first flow proportion control element is used for controlling the air inlet amount of each first air inlet branch pipe; the multiple air inlet nozzles are used for being arranged in the edge area of an inner cavity of the process cavity and connected with the multiple first air inlet branch pipes in a one-to-one correspondence mode. The process chamber of the semiconductor process equipment comprises the gas transmission device. The method at least can solve the problem that the uniformity of the etching rate of the wafer edge is affected by non-uniform air intake of the edge area.

The application discloses a kind of intelligent control methods of tire multi-composite extrusion rubber interface temperature, it is related to tire manufacturing technical field, to solve the technical problem of current experience and fixed parameter control resulting in regulation and control lag, low precision and poor adaptability, S100, constructs and optimizes extrusion dynamic condition pre-judgment model;S200, issue multi-device advanced linkage control instruction;S300, issue instruction to realize the dynamic adjustment of multiple devices cooperation;S400, continuously collect control feedback data until the rubber interface temperature reaches the preset control requirement.The application is through normalization algorithm preprocessing, extrusion dynamic condition intelligent pre-judgment, and the integrated control structure of adaptive fuzzy PID core algorithm dynamic parameter setting, combined with multi-source data acquisition, condition change identification, and controller parameter pre-setting and autonomous setting collaborative operation, so that temperature control can follow extrusion process real-time change, accurately control rubber interface temperature in process preset interval.

This application discloses a guide rod system for installing a flow promoter with a circular upper section and a square lower section, belonging to the field of water treatment equipment. It solves the problem of how to install and lower a flow promoter when axial expansion is not possible in existing technologies. In this application, the upper end of the guide rod is detachably connected to the lower end of the hoisting device; the radial cross-section of the upper section of the guide rod is circular, and the radial cross-section of the lower section is square. The shape of the end of the guide rod transition section connecting to the upper section matches the radial cross-section of the upper section, and the shape of the end of the guide rod transition section connecting to the lower section matches the radial cross-section of the lower section. This utility model's guide rod system for installing a flow promoter with a circular upper section and a square lower section allows the flow promoter to temporarily rotate around the guide rod during installation, avoiding the load-bearing beam without detaching from the guide rod.

This application discloses a semiconductor laser device and a method for adjusting the energy distribution of a light spot. The semiconductor laser device includes a laser, an adjusting lens, an imaging lens, and an imaging element. The adjusting lens, imaging lens, and imaging element are arranged sequentially and at intervals along a first straight line. The adjusting lens has an input side and an output side. The input side is provided with a first microlens array, which has multiple first dimming surfaces arranged in an array. The output side is arranged with multiple inclined surfaces. The curvature of the multiple first dimming surfaces changes sequentially along a second straight line, and each inclined surface extends obliquely along the second straight line, with the angle between the multiple inclined surfaces and the second straight line changing sequentially along the second straight line. The light beam passes sequentially through the first dimming surfaces, the dimming inclined surfaces, and the imaging lens and is projected onto the imaging element, so that the energy of the light spot on the imaging surface changes sequentially along the second straight line. The semiconductor laser device of this application can adjust the energy of the light spot to have a multi-segment distribution.