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30results about How to "Processing size is large" patented technology

Processing technology of robot RV speed reducer needle gear shell

The invention discloses a processing technology of a robot RV speed reducer needle gear shell, and belongs to the technical field of robot RV speed reducer processing. The processing technology includes the steps that precise casting or forging is carried out on a needle gear shell blank; the needle gear shell blank is clamped after the surface of the needle gear shell blank is machined, and the rotation center of the needle gear shell blank is taken as a positioning reference; the end face of the needle gear shell blank, a bearing position of a roller pin bearing and bearing positions of two main bearings are machined; finish machining is carried out on the inner surface of the roller pin bearing according to the positioning reference; finish machining is carried out on a roller pin groove in line contact with a roller pin of the roller pin bearing according to the positioning reference; inner grooves are simultaneously machined in the bearing positions of the two main bearings in a finish machining mode according to the positioning reference; finish machining is carried out on the outer surface of the needle gear blank. The needle gear shell machined according to the steps improves machining precision and the parallelism degree of the bearing positions of the main bearings, guarantees coaxiality, the position degree and cylindricity of the main bearings after installation, achieves one-time clamping, can meet requirements of multiple process parameters, improves machining precision and installation precision of the needle gear shell, reduces accumulated errors, meets the high-precision requirements, and prolongs service life.
Owner:SHANDONG SHKE MACHINERY MFG

Integrated machining method of planet carrier of robot RV reducer

The invention discloses an integrated machining method of a planet carrier of a robot RV reducer, and belongs to the technical field of robot RV reducer machining. The method comprises the steps as follows: forging a first casing and a second casing, and performing hot extrusion on the first casing and the second casing respectively; performing thermal refining; performing tempering; performing finish machining on end surfaces respectively; connecting the first casing with the second casing to be clamped to a clamp, and performing finish machining on inner holes formed in the first casing and the second casing with a center of gyration serving as a locating basis; performing finish machining on outer surface with the locating basis; directly machining inner rings of rolling bearings on the first casing and the second casing; accurately grinding an outer track on each inner ring simultaneously; and performing finish machining bearing positions of three tapered roller bearings on the first casing and the second casing with the location reference, and directly machining outer rings of the tapered roller bearings. With the adoption of the method, the mounting accuracy, the manufacturing accuracy and the transmission accuracy are ensured, the requirement for high accuracy is met, the service life is prolonged, machining and assembling errors and accumulative errors are reduced, the output torque is increased, and the machining cost is effectively reduced.
Owner:SHANDONG SHKE MACHINERY MFG

Batch-type grinding method of hard coating material

The invention relates to a batch-type grinding method of a hard coating material, comprising the following steps: carrying out alternate batch-type grinding by adopting a grinding wheel feeding way and a grinding wheel no-feeding way in the grinding process; when the grinding wheel feeding way is adopted, carrying out high-speed or ultra high-speed grinding; when the grinding wheel no-feeding wayis adopted, carrying out no-load reciprocatory grinding; and after every time of feed grinding of a grinding wheel, carrying out the no-load reciprocatory grinding for 2-20 times according to the actual condition; wherein the high-speed or ultra high-speed grinding comprises that the primary feed grinding depth is 10-15mu m, the feeding speed of an operating platform is 6000-30000mm / min, and the linear speed of the grinding wheel is 80-200m / s. In the invention, variation of the actual grinding depth caused by elastic deformation and heat deformation of the grinding wheel and workpieces can beeliminated to the utmost extent, the heat produced at high-speed grinding can be timely released, and the grinding wheel can maintain to be sharp, thus the material removing rate is improved, the grinding surface burning is effectively reduced, the grinding wheel loss and production cost are greatly reduced, and the good processing quality is obtained.
Owner:HUNAN UNIV

Intelligent constant pressure bubble jet dyeing and finishing system

The invention belongs to the technical field of dyeing and finishing systems, and provides an intelligent constant pressure bubble jet dyeing and finishing system. The system comprises a cloth feeder, an automatic constant pressure bubble jet application device, an intelligent dynamic bubble generation device, an automatic tension control system, an ultrasonic wave fixation device, a microwave loose type pre-drying room and a constant tension reeling device, wherein the cloth feeder, the automatic constant pressure bubble jet application device, the intelligent dynamic bubble generation device, the automatic tension control system, the ultrasonic wave fixation device, the microwave loose type pre-drying room and the constant tension reeling device which are controlled by a computer control center; the intelligent dynamic bubble generation device is in tube connection with the automatic constant pressure bubble jet application device; and the automatic tension control system is arranged among the cloth feeder, the automatic constant pressure bubble jet application device, the ultrasonic wave fixation device, the microwave loose type pre-drying room and the constant tension reeling device in a penetrated manner and provides cloth walking direction and motive power for fabrics. The intelligent constant pressure bubble jet dyeing and finishing system is utilized to replace traditional dyeing and finishing production process, the usage amount of water is saved by above 60%-70%, drying energy consumption after dyeing and finishing of the fabrics is saved by above 50%, and dyeing and finishing auxiliaries are saved by above 30%.
Owner:江苏树桥新材料科技有限公司

Centrifugal concrete pile die production process

The invention relates to a method for producing eccentric concrete post mould, wherein it comprises that: first, preparing needed elements as tube wall, longitudinal bar, annular bar, bolt, end plate, etc; then connecting and welding said elements; at least, finely processing half steel mould and whole mould, and turning integrity, to obtain the final product. The matched board and tube wall are cold drawn to fine size via cold drawer and mould, to save material and improve quality; the end plate and rolling wheel are made from plate bended by compressor to save steel.
Owner:JIANGSU HAI HENG BUILDING MATERIAL MACHINERY CO LTD

3D printing system for dynamic imaging and printing method thereof

The invention discloses a 3D printing system for dynamic imaging and a printing method thereof and belongs to the technical field of 3D printing. The printing method comprises the following steps of taking a spatial light modulator as a dynamic pattern generation apparatus; carrying out beam collimation and shaping by an exposure light source through an illuminating system; radiating the surface of the spatial light modulator to radiate the dynamic pattern on the surface of the spatial light modulator to the surface of a two-dimensional displacement platform through a projecting exposure objective; matching continuous loading of the dynamic pattern and scanning movement of the two-dimensional displacement platform synchronously; and further controlling the position of a focal face of a projecting lens for scan exposure layer by layer to achieve high precision, large area and dynamic imaging 3D printing. The system solves the problem that high precision and large area cannot be considered at the same time in a conventional 3D printing process, achieves joint-free high precision 3D printing of a meter-scale structure, and can be widely applied to various industrial manufacturing demands.
Owner:卢振武

Method for preparing quartz glass millimeter-scale deep micropores by utilizing femtosecond laser filament effect

ActiveCN112372162ASmall sizeOptimizing Micropore MorphologyLaser beam welding apparatusBeam splitterLight spot
The invention discloses a method for preparing quartz glass millimeter-scale deep micropores by using a femtosecond laser filament effect. The method comprises the following steps that a quartz glasssample is cleaned, an optical path is built, the optical path includes a femtosecond laser, the femtosecond laser outputs a light beam with circular section to pass through a reflector, a beam splitter prism and a shutter, a circular light spot laser beam is focused through a large-focal-length plano-convex lens to obtain the condition that a femtosecond laser filament vertically irradiates on a processing station of a movable objective table, the femtosecond laser device, the shutter and the movable objective table are connected with a computer, and the computer is used for adjusting the femtosecond laser device to output different laser parameters to control the length and the action time of the femtosecond laser filaments; and the quartz glass sample is fixed to a processing station ofthe movable objective table, through femtosecond laser irradiation, the computer is used for controlling the movable objective table to move in the vertical directionto change the defocusing amount soas to change the position of the light filament in a material, and finally deep micropores are obtained. The method is simple to operate and high in processing efficiency, and a complex post-treatment process is not needed.
Owner:XI AN JIAOTONG UNIV

Additive and subtractive composite forming equipment and machining method

The invention provides additive and subtractive composite forming equipment and a machining method. The additive and subtractive composite forming equipment comprises a machine box, wherein a workbench is arranged in the machine box, an XY-axis moving mechanism is arranged on the bottom surface of the workbench, a main shaft is arranged in the machine box, the main shaft is connected with a driver, a subtractive forming tool library is arranged on the left side of the main shaft, the right side of the main shaft is provided with an additive forming tool library and a powder feeding laser nozzle, the lower end of the main shaft is provided with a working head, the powder feeding laser nozzle is connected with a laser through a laser optical fiber, the powder feeding laser nozzle is connected with the powder feeding device through a powder feeding tube, the laser powder feeder is connected with the protective gas supply device through a pipeline, and the protective gas supply device is connected with the powder feeding laser nozzle through an air pipe. According to the additive and subtractive composite forming equipment, the efficiency of rapid forming machining and cutting machining is improved, and the machining quality is improved.
Owner:GUANGDONG HANS YUEMING LASER GRP CO LTD +2

Preparation method for mode field conversion coupling structure and preparation structure of the mode field conversion coupling structure

The invention discloses a multilayer coupling structure for photon chip mode field conversion, the lower layer in the coupling structure is a conical structure, the upper layer is an optical waveguide structure with a large size, and a light beam transmitted in the lower layer conical structure is gradually transferred to the upper layer optical waveguide structure for transmission. High-efficiency light beam transmission between the photon chip and the optical fiber is achieved, and the advantages of being low in coupling loss and easy to prepare are achieved. The invention further discloses a structure preparation method based on the chemical mechanical polishing method. The structure preparation method has the advantages of being low in cost, high in machining efficiency, simple in process, high in yield and the like.
Owner:嘉兴微智光子科技有限公司

Automatic radial feeding tool rest for end face boring lathe

The invention discloses an automatic radial feeding tool rest for an end face boring lathe. The tool rest comprises a toolbar, a tool rest body and a tool bit, wherein the tool rest body is arranged on the toolbar; an automatic radial feeding structure is arranged between the tool rest body and the tool bit, and comprises a screw rod, a sliding seat, and a ratchet mechanism and a gear set, which are arranged on the tool rest body and used for driving the screw rod to rotate; the tool bit is arranged at one end of the sliding seat; the other end of the sliding seat is matched with the screw rod through a nut seat on the sliding seat. According to the tool rest, the tool bit can be automatically and radially fed without manual operation, so that the labor intensity of a worker is reduced, the machining efficiency is improved, and the range of a machining size is widened.
Owner:芜湖陀曼精机科技有限公司

Processing method of drop cake-shaped bounce large-size super-hydrophobic cone column array

The invention provides a processing method of a drop cake-shaped bounce large-size super-hydrophobic cone column array. The processing method comprises the following steps: processing a preparation mold: setting a nanosecond laser processing parameter, processing cone hole array molds with the diameter being 180 to 1260 microns, the separation distance being less than or equal to 290 microns and the height being 500 to 2000 microns on a metal base plate, etching, cleaning and blow-drying to obtain a pouring mold; performing curing treatment and directly demolding to obtain a polymer cone column array; and performing low surface energy modification on the obtained polymer cone column array by adopting a fluoro-alkyl silane or stearic acid solution to obtain the super-hydrophobic cone columnarray. The method has the advantages that the method is simple, easy to operate and low in cost; materials and templates can be reused; the prepared cone column array is large in size and wide in range and has stable super-hydrophobic property; and the prepared super-hydrophobic cone column array can enable the liquid-solid contact time to be reduced by 60 percent and can effectively drop cake-shaped bounce and prevent the occurrence of an icing phenomenon.
Owner:DALIAN UNIV OF TECH

Preparation method of high-specific-stiffness aluminum silicon carbide structural part, and high-specific-stiffness aluminum silicon carbide structural part

The invention provides a preparation method of a high-specific-stiffness aluminum silicon carbide structural part. Silicon carbide particles and silicon carbide whiskers are mixed according to a proportion, and a certain quantity of the silicon carbide whiskers is added into the silicon carbide particles, so that the strength and toughness of a silicon carbide green body are effectively improved; an aluminum silicon carbide composite material casting formed after a prefabricated part containing the silicon carbide whiskers is infiltrated into an aluminum alloy solution has high specific stiffness, specific strength and wear resistance; and through the method of adding mixed powder into a preheated mold, and carrying out stacking, jolt ramming and aluminum filling, the two working procedures of pressing and sintering forming for the silicon carbide prefabricated part are reduced, the process of powder filling and aluminum filling is adopted and is not limited by the product structure, the machining size is increased, a high-volume aluminum silicon carbide machining working procedure is avoided, the process flow is simplified, the productivity is improved, the cost is reduced, the yield is increased, and the production period is shortened. The invention further provides a high-specific-stiffness aluminum silicon carbide structural part which is compact, excellent in performance and wide in application range.
Owner:珠海亿特立新材料有限公司

A kind of graphene oxide reinforced titanium alloy and preparation method thereof

The invention belongs to the field of titanium alloys, and discloses a graphene oxide-reinforced titanium alloy and a preparation method thereof. The graphene oxide-reinforced titanium alloy includes magnesium: 0.10% to 0.30% and graphene oxide: 0.45% by weight percentage. %~0.50%; the rest is titanium and unavoidable impurities. The preparation method includes: selecting magnesium, graphene oxide and titanium for smelting to obtain cast slabs, annealing the cast slabs at a temperature of 910-960°C, and forging the annealed cast slabs into rods at a forging temperature of 800-960°C, the bar is subjected to aging treatment, the aging treatment temperature is 700-800°C, and the holding time is 1-2h. The solid-solution strengthening effect of Mg element and its neutral stabilizing effect on α-phase and β-phase are fully utilized. The process is simple and the processing performance is good. The prepared graphene oxide-reinforced titanium alloy has high strength and does not reduce , Even improve the ductility of the alloy, so that the titanium alloy material has excellent strength and plasticity at the same time, and can process larger-sized finished products.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

The processing method of the integrated planet carrier of the rv reducer of the robot

The invention discloses an integrated machining method of a planet carrier of a robot RV reducer, and belongs to the technical field of robot RV reducer machining. The method comprises the steps as follows: forging a first casing and a second casing, and performing hot extrusion on the first casing and the second casing respectively; performing thermal refining; performing tempering; performing finish machining on end surfaces respectively; connecting the first casing with the second casing to be clamped to a clamp, and performing finish machining on inner holes formed in the first casing and the second casing with a center of gyration serving as a locating basis; performing finish machining on outer surface with the locating basis; directly machining inner rings of rolling bearings on the first casing and the second casing; accurately grinding an outer track on each inner ring simultaneously; and performing finish machining bearing positions of three tapered roller bearings on the first casing and the second casing with the location reference, and directly machining outer rings of the tapered roller bearings. With the adoption of the method, the mounting accuracy, the manufacturing accuracy and the transmission accuracy are ensured, the requirement for high accuracy is met, the service life is prolonged, machining and assembling errors and accumulative errors are reduced, the output torque is increased, and the machining cost is effectively reduced.
Owner:SHANDONG SHKE MACHINERY MFG

The processing technology of the pin gear housing of robot rv reducer

The invention discloses a processing technology of a robot RV speed reducer needle gear shell, and belongs to the technical field of robot RV speed reducer processing. The processing technology includes the steps that precise casting or forging is carried out on a needle gear shell blank; the needle gear shell blank is clamped after the surface of the needle gear shell blank is machined, and the rotation center of the needle gear shell blank is taken as a positioning reference; the end face of the needle gear shell blank, a bearing position of a roller pin bearing and bearing positions of two main bearings are machined; finish machining is carried out on the inner surface of the roller pin bearing according to the positioning reference; finish machining is carried out on a roller pin groove in line contact with a roller pin of the roller pin bearing according to the positioning reference; inner grooves are simultaneously machined in the bearing positions of the two main bearings in a finish machining mode according to the positioning reference; finish machining is carried out on the outer surface of the needle gear blank. The needle gear shell machined according to the steps improves machining precision and the parallelism degree of the bearing positions of the main bearings, guarantees coaxiality, the position degree and cylindricity of the main bearings after installation, achieves one-time clamping, can meet requirements of multiple process parameters, improves machining precision and installation precision of the needle gear shell, reduces accumulated errors, meets the high-precision requirements, and prolongs service life.
Owner:SHANDONG SHKE MACHINERY MFG

Rotary ultraviolet exposure machine

The invention discloses a rotary ultraviolet exposure machine. The rotary ultraviolet exposure machine comprises a conveyer table, a coating machine and an exposure machine, wherein the coating machine is located on one side of the coating machine, the conveyer table sequentially penetrates through the coating machine and the exposure machine, and an ultraviolet light source generator is arrangedat the top of the exposure machine; an exposure cavity is formed in the middle of the exposure machine, a rotary exposer is arranged on the exposure cavity and is connected to the ultraviolet light source generator through a light source; a first base crossbeam and a second base crossbeam are mounted on the lower surface of the conveyer table, and the first base crossbeam is arranged on a coatingquakeproof base below the coating machine; and the second base crossbeam is arranged on an exposure quakeproof base below the exposure machine. The rotary ultraviolet exposure machine has the characteristics that an exposure mask plate is not required, the machining speed is high, the machining efficiency is high, the machining size is large, and the machining compatibility is strong.
Owner:合肥泰沃达智能装备有限公司

A new type of lamp strip molding processing method

The invention discloses a novel light bar panel molding processing method. The method includes the following steps that panel hanging holes are drilled in the panel sides of PNL-shaped light bar panels by means of a numerical control drilling machine; the short sides of the drilled PNL-shaped light bar panels are hung on a numerical control V-CUT machine and fixed, V-grooving is conducted on the short sides, one panel is processed each time, and the V-CUT residual thickness is set to be 0.15 mm so as to bring convenience to subsequent panel dividing; the long sides of the PNL-shaped light bar panels with the short sides obtained after V-CUT are hung on the numerical control V-CUT machine and fixed, V-grooving is conducted on the long sides, two panels are processed each time, and the V-CUT residual thickness is set to be 0.3 mm smaller than half of the total thickness of two stacked PNL-shaped light bar panels; the stacking positions of the two PNL-shaped light bar panels are switched, V-grooving is conducted on the long sides of the PNL-shaped light bar panels again, and the V-CUT residual thickness is set to be 0.3 mm smaller than half of the total thickness of two stacked PNL-shaped light bar panels; by means of a panel dividing machine or manual panel dividing, the short sides of the PNL-shaped light bar panels are cut off, then the PNL-shaped light bar panels are composed into SET-shaped light bar panels or PCS-shaped light bar panels, and V-CUT molding of the light bar panels is completed. The method saves the light bar panel processing cost and improves production efficiency and product quality.
Owner:JIAN MANKUN TECH

Hard alloy hole boring cutter

InactiveCN102990104AReduce auxiliary timeProcessing size is smallTurning toolsEconomic benefitsAlloy
The invention discloses a hard alloy hole boring cutter, which mainly comprises a cutter body, a cutter slice, a cutter pressing screw, a positioning screw and a pressing plate, wherein a cylindrical hole is formed in one end head of the cutter body; the cutter pressing screw is formed by a cylindrical segment, a conical segment and a screw segment with a screw thread; the screw segment of the cutter pressing screw is connected to the cutter body through the cylindrical hole; the cutter slice is tightly propped against the conical segment of the cutter pressing screw; when the cutter pressing screw is screwed in, the cutter slice tightly propped against the conical segment extends outwards; and the cutter slice is fastened by tightening the positioning screw through the pressing plate. When the cutter pressing screw is screwed out, the cutter slice tightly propped against the conical segment contracts to the center, so that the machining size is reduced; and when the positioning screw is screwed in, the cutter slice tightly propped against the conical segment extends outwards, so that the machining size is enlarged; and the hole boring cutter can work on a presetter, so that the auxiliary time of replacement and regulation of the cutter is reduced and the production efficiency is improved greatly. In addition, the hard alloy hole boring cutter also has the advantages of good machining quality, reduction in production cost and high economic benefit.
Owner:赵四男

A light guide plate production and processing technology and its coating and exposure equipment

The invention discloses a guiding plate production and processing technology and a coating exposure device thereof. The coating exposure device comprises a transfer table, a coating machine and an exposure machine. The coating machine is located on one side of the exposure machine, the transfer table sequentially penetrates through the coating machine and the exposure machine, and an ultraviolet source generator is arranged at the top of the exposure machine. An exposure cavity is formed in the middle of the exposure machine, and a rotary exposure device is arranged in the exposure cavity andis connected to the ultraviolet source generator through a light source transmitter. The lower surface of the transfer table is installed on a first base cross beam and a second base cross beam, and the first base cross beam is arranged on a coating shockproof base under the coating machine. The second base cross beam is arranged on the coating shockproof base under the exposure machine. The guiding plate production and processing technology has the advantages that an optical mask plate is not needed, the processing speed is high, the processing efficiency is high, the processing size is large, and the processing compatibility is strong.
Owner:合肥泰沃达智能装备有限公司

Intelligent constant pressure bubble jet dyeing and finishing system

The invention belongs to the technical field of dyeing and finishing systems, and provides an intelligent constant pressure bubble jet dyeing and finishing system. The system comprises a cloth feeder, an automatic constant pressure bubble jet application device, an intelligent dynamic bubble generation device, an automatic tension control system, an ultrasonic wave fixation device, a microwave loose type pre-drying room and a constant tension reeling device, wherein the cloth feeder, the automatic constant pressure bubble jet application device, the intelligent dynamic bubble generation device, the automatic tension control system, the ultrasonic wave fixation device, the microwave loose type pre-drying room and the constant tension reeling device which are controlled by a computer control center; the intelligent dynamic bubble generation device is in tube connection with the automatic constant pressure bubble jet application device; and the automatic tension control system is arranged among the cloth feeder, the automatic constant pressure bubble jet application device, the ultrasonic wave fixation device, the microwave loose type pre-drying room and the constant tension reeling device in a penetrated manner and provides cloth walking direction and motive power for fabrics. The intelligent constant pressure bubble jet dyeing and finishing system is utilized to replace traditional dyeing and finishing production process, the usage amount of water is saved by above 60%-70%, drying energy consumption after dyeing and finishing of the fabrics is saved by above 50%, and dyeing and finishing auxiliaries are saved by above 30%.
Owner:江苏树桥新材料科技有限公司

Method for preparing millimeter-scale deep microholes in quartz glass by using femtosecond laser filament effect

A method for preparing millimeter-scale deep micropores in quartz glass by using the femtosecond laser filament effect. Firstly, the quartz glass sample is cleaned, and then the optical path is built. , and finally focus the circular spot laser beam through a plano-convex lens with a large focal length, so that the femtosecond laser filament is irradiated vertically on the processing station of the moving stage. The femtosecond laser, shutter, moving stage and computer are connected, and the The computer adjusts the femtosecond laser to output different laser parameters to control the length of the femtosecond laser filament and the action time; the quartz glass sample is fixed on the processing station of the mobile stage, and after the femtosecond laser is irradiated, the computer controls the moving object along the Move in the vertical direction to change the defocus amount, thereby changing the position of the light filament in the material, and finally obtain deep microholes; the invention is simple in operation, high in processing efficiency, and does not require complicated post-processing processes.
Owner:XI AN JIAOTONG UNIV

Centrifugal concrete pile die production process

The invention relates to a production method of centrifugal concrete pile form, which comprises the following steps: firstly, prepare required components, including tongue and groove plate, pipe wall, longitudinal reinforcement, ring reinforcement, loop, bolt, end plate, running wheel ; Then, the parts are connected in order and spot welded as a whole to obtain a half-piece steel mold; finally, the half-piece steel mold and the whole mold are finished, and the whole mold is turned to obtain a finished product. In the method of the present invention, the tongue-and-groove plate and the pipe wall are directly cold-drawn to the precise size by the cold-drawing equipment and the mold, which saves materials, saves the process, and improves the quality; the end plate and the running wheel are all bent and formed by the press. It is made to save steel; the overall turning ensures the overall coaxiality of the steel mold. The invention saves steel, saves procedures, saves materials (welding rods, grinding wheels) and produces higher quality products.
Owner:JIANGSU HAI HENG BUILDING MATERIAL MACHINERY CO LTD

Gear hobbing machine

The invention discloses a gear hobbing machine. The gear hobbing machine comprises a base, a fixed base, gear hobbing mechanisms and a control system, wherein the fixed base which is used for fixing agear to be machined is rotatably arranged in the centre of the base; each gear hobbing mechanism comprises a right-angle sliding seat, a motor, a transmission gear group, hydraulic rods, sliding blocks and hobbing cutters; the control system comprises a master control unit, a displacement amount processing unit, a right-angle sliding seat control unit and a hydraulic rod control unit; according to the gear hobbing machine, two groups of the right-angle sliding seats are arranged and telescopically movable hydraulic rods are arranged on the right-angle sliding seats, so that simultaneous machining of the four hobbing cutters can be realized simultaneously by matching the movement of the right-angle sliding seats and the hydraulic rods; moreover, the machining size can also be changed by moving the right-angle sliding seats; automatic machining operation is realized through intelligent control of the control system; the structure is simple; and the machining precision is high.
Owner:JINHUA DAZHONG GEAR

Machining method of variable-pitch screw rotor

A variable-pitch screw rotor machining method is characterized in that a variable-pitch cutter is adopted for machining a variable-pitch rotor, the axial positions of the variable-pitch cutter and the variable-pitch rotor are kept fixed during machining, and the central axis of the variable-pitch cutter and the central axis of the variable-pitch rotor are staggered; the variable-pitch cutter and the variable-pitch rotor move in a meshed mode according to the fixed rotating speed, the rotating speed ratio of the variable-pitch cutter to the variable-pitch rotor is omegac / omegar = zr / zc, omegac is the rotating speed of the variable-pitch cutter, omegar is the rotating speed of the variable-pitch rotor, zc is the number of teeth of the variable-pitch cutter, and zr is the number of teeth of the variable-pitch rotor. Compared with the prior art, the machining efficiency is improved, and the machining cost is reduced.
Owner:SHANGHAI QIYAO EXPANDER +1

Graphene oxide enhanced titanium alloy and preparation method thereof

The invention belongs to the field of titanium alloys and discloses a graphene oxide enhanced titanium alloy and a preparation method thereof. The graphene oxide enhanced titanium alloy comprises thefollowing components in percent by weight: 0.10-0.30% of magnesium, 0.45-0.50% of graphene oxide and the balance titanium and inevitable impurities. The preparation method comprises the following steps of selecting magnesium, graphene oxide and titanium to smelt to obtain a casting blank; annealing the casting blank at 910-960 DEG C; forging the annealed casting blank into a bar at 800-960 DEG C;and carrying out aging treatment on the bar at 700-800 DEG C and insulting the bar for 1-2 hours. By making full use of solution strengthening action of Mg and neutral stability action of Mg on alphaphase and beta phase, the preparation method is simple in process and good in processing performance. The ductility of the prepared graphene oxide enhanced titanium alloy is not reduced or even is improved while the prepared graphene oxide enhanced titanium alloy is high in strength, so that a titanium alloy material has excellent strength and plasticity and can be processed into products with larger dimensions.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

A processing method for droplet cake-like bouncing large-scale superhydrophobic cone-column array

The invention provides a method for processing liquid drop cake-shaped bouncing large-scale superhydrophobic cone-column arrays. Mold processing is prepared: nanosecond laser processing parameters are set, and a metal substrate with a diameter of 180 μm to 1260 μm, a spacing of ≤290 μm, and a height of 500μm ~ 2000μm cone hole array mold, after etching, cleaning and drying, the casting mold is obtained; curing treatment, direct demoulding to obtain the polymer cone column array; the obtained polymer cone column array is made of fluorosilane or stearic acid solution Low surface energy modification is performed to obtain superhydrophobic cone-column arrays. The method of the present invention has the advantages of simple and easy operation, low cost, reusable materials and templates, large size and wide range of the prepared pyramid-column array, and stable superhydrophobic performance. The superhydrophobic pyramid-column array prepared by the present invention can be The liquid-solid contact time is reduced by 60%, which can effectively realize the cake-like bounce of liquid droplets and prevent the occurrence of icing.
Owner:DALIAN UNIV OF TECH
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