24results about How to "High surface finish" patented technology

This invention discloses a free-machining high-strength aluminum-lithium alloy, its preparation method, and its applications, belonging to the field of alloy materials technology. The free-machining high-strength aluminum-lithium alloy has the following weight percentages of elements: Li: 3.5–5.5%, Cu: 2.6–3.1%, Zn: 6.8–7.1%, Mg: 2.1–3.0%, Y: 1.5–4.0%, Bi: 0.85–1.05%, In: 0.05–0.08%, Cr: 0.05–0.45%, Ti: 0.02–0.04%, with the balance being Al. This invention involves batching, smelting, refining, online refining, online degassing and filtration, casting, homogenization, extrusion, and two-stage aging treatment to finally obtain a free-machining high-strength aluminum-lithium alloy with a uniform microstructure. This invention has a reasonable component ratio, low manufacturing cost, and the resulting product has excellent strength and hardness, and exhibits excellent surface finish after dry machining.

The application discloses a surface-defect-free high-purity oxygen-free copper wire manufacturing method based on continuous extrusion, relates to the field of non-ferrous metal precision machining technology, and directly adopts an up-drawing continuous casting billet to extrude a target specification wire rod in one step through continuous extrusion, so that a plurality of drawing processes and at least one intermediate annealing process in a traditional process are completely omitted, a process flow is compressed by more than 60%, a production cycle is significantly shortened, equipment investment, labor cost and energy consumption loss are reduced, wire rod production efficiency is greatly improved, large-scale production cost is greatly reduced, and the application has a strong industrialization advantage; the continuous extrusion process introduces large plastic deformation, can strongly break original as-cast coarse grains, and simultaneously compacts and eliminates internal defects such as pores and shrinkage porosity generated in the up-drawing continuous casting process, and improves wire rod density. Compared with a traditional processing method, the wire rod prepared by the application avoids problems such as annealing oxidation, uneven structure and performance fluctuation, and the elongation of a finished product is greater than or equal to 40%.

The utility model relates to the technical field of automobile manufacturing, especially is used for the injection mold of car front and rear door outer water cutting guide rail, including lower mould, upper mould, limiting component, thimble board, thimble and spring, the utility model discloses when using, through the cooling water path of lower mould inside design, adopt the arc shape of water path along the mould groove guide rail and set up to the water path, promote the cooling efficiency and uniformity of mould after injection, reduce the risk of deformation, thereby shorten the forming cycle, reduce the linear deviation of guide rail, and the mould sets up the mould groove in pairs, can produce a pair of outer water cutting guide rail once, promote product linearity, surface finish and batch consistency, through the slope structure of special-shaped plug, when appearing slight deviation in the clamping process, can assist rectification, can avoid appearing left and right displacement situation, guarantee lower mould and upper mould accurate clamping, avoid injection molding part to appear bad such as peak, thereby greatly improve injection molding part quality.

The utility model provides a kind of spinneret, belong to textile machinery technical field.Its structure includes: a plurality of shunt cone is arranged to form array in the upper end of spinneret body, the shape of the array is regular hexagon, there are a plurality of spinneret hole in the periphery of each shunt cone;Every two adjacent shunt cone is arranged at equal intervals;Every two adjacent spinneret hole is arranged at equal intervals.The utility model is designed with new structure, can optimize the spinning process of fiber, improve the dispersion uniformity and surface quality of fiber.Through the structure design and material selection of spinneret, realize efficient, stable fiber production.The spinneret includes spinneret body and multiple spinneret holes arranged on the spinneret body.The shape, size and arrangement of spinneret hole are carefully designed to achieve uniform dispersion of fiber.At the same time, spinneret body is made of high-temperature-resistant and wear-resistant material to ensure stability in high temperature and high pressure environment.

This invention belongs to the field of weaving equipment technology and discloses a pretreatment device for a circular loom, including a housing with multiple ferrules installed at the bottom. One end of the housing is fixedly installed with an inlet plate having multiple inlet guide holes. Inside the housing, along the yarn travel direction, are sequentially arranged an infrared heating tube group, an atomizing nozzle group, a parallel electrode plate, a simulated weaving guide roller group, a low-temperature plasma generator, a heated pressure roller group, and a cold air cooling unit. The other end of the housing is fixedly installed with an outlet plate having multiple outlet guide holes. This device integrates multiple pretreatment functions into one housing, realizing integrated continuous operation of yarn pretreatment. It can effectively release internal yarn stress, remove surface fuzz from the yarn, improve yarn flexibility and surface quality, thereby reducing the shrinkage rate of the base fabric, reducing yarn breakage during weaving, improving the production efficiency and product quality of the circular loom, and reducing production costs.

The application provides a device for reducing welding marks in an alumina ceramic crucible, which comprises a cylindrical outer mold with a hollow structure, an inner mold arranged on the inner side of the outer mold, a cylindrical closed forming cavity arranged between the inner mold and the outer mold, a base jointed to the bottom of the outer mold, two second grouting openings in a parallelogram shape and in opposite directions arranged in the middle of the base, a feeding disc connected to the lower part of the base, and a first grouting opening arranged in the center of the feeding disc. The application also provides a method for reducing welding marks in an alumina ceramic crucible, which comprises the following steps: assembling the outer mold, the inner mold, a mold core ring, the base and the feeding disc; placing the mold into water with a temperature of 24-26 DEG C; injecting alumina ceramic grouting liquid into the mold from the first grouting opening to form; and demolding. The application can reduce welding marks in an alumina ceramic crucible and improve the quality of finished products.

The application relates to a CMP composition for obtaining a high-quality SiC single crystal substrate surface, which is prepared from the following raw materials in percentage by weight: 20-50 wt% of polishing abrasive, 3-5 wt% of oxidizing agent, 0.1-0.5 wt% of surfactant, 0.2-0.5 wt% of hydrogen bond regulator, 0.2-1 wt% of polishing accelerator, 0.01-0.05 wt% of defoaming agent, and the balance of water; the CMP composition is neutral. The CMP composition uses silicon oxide as the abrasive, introduces the hydrogen bond regulator, the polishing accelerator and the oxidizing agent, improves the polishing rate of the silicon carbide wafer CMP, realizes that the surface roughness Ra of the silicon surface after cleaning can reach below 0.07 nm, the surface after cleaning is free of large particles (>0.2 um), meanwhile, the silicon oxide raw material does not need to be treated, has excellent long-term storage stability, and the system does not have the phenomena of particle agglomeration and sedimentation with the prolongation of the storage time, and excellent polishing surface quality can be obtained in the subsequent polishing process.

The utility model provides a kind of petroleum drilling and production equipment flange sealing surface grinding repair device, it is related to petroleum drilling and production equipment field.This flange sealing surface grinding repair device is mainly composed of inner support piece and rotating part;Inner support piece is detachably fixed on the inner wall of the flange of petroleum drilling and production equipment, for rotating support for rotating part;Rotating part has the frame body rotating around inner support piece, sand belt polisher for grinding flange sealing surface is arranged on the frame body.This flange sealing surface grinding repair device adopts sand belt polisher to repair flange, with the characteristics of small vibration, high linear velocity, good flatness, can significantly improve the surface finish and flatness of petroleum drilling and production equipment flange sealing surface.In addition, this flange sealing surface grinding repair device also has the characteristics of compact structure, convenient to carry and operate, strong practicality etc.

This utility model relates to the field of 3D printing technology, and more particularly to a filament cleaning device for 3D printing. The device includes a mounting frame, rotating shafts, rollers, a connecting frame, and a reciprocating lead screw. The mounting frame has rotating shafts symmetrically connected to it, with the upper end of the right-side shaft penetrating the mounting frame. Rollers are connected to both rotating shafts. The mounting frame is connected to the connecting frame, and a reciprocating lead screw is rotatably connected inside the connecting frame. By pulling the 3D printing filament, the scraper ring and sponge pad move, effectively cleaning the filament before it enters the 3D printer. This significantly reduces the impact of dust, fibers, and other minute impurities on the printing process. This not only avoids nozzle clogging caused by impurities but also ensures uniform material extrusion, thereby improving interlayer bonding strength, surface finish, and reducing defects such as voids.

The invention belongs to the technical field of medical catheters, and particularly relates to an interventional microcatheter and a machining jig of the interventional microcatheter. The interventional microcatheter comprises a microcatheter body, a developing ring is fixedly embedded in the inner wall of a far-end catheter opening of the microcatheter body, and a groove is formed in the outer wall of the connecting end of the developing ring; the inner wall of a far-end pipe opening of the micro-catheter body is fixedly connected with a limiting clamping ring matched with a groove in the outer wall of the connecting end of the developing ring. The interventional micro-catheter machining jig has the functions of precise forming, high-speed cooling and integrated polishing, it is ensured that the joint is tightly attached, the air hole defect does not exist, the use reliability and product safety of the machining jig are remarkably improved, meanwhile, the machining qualification rate of interventional micro-catheters is increased, and the production cost is reduced. The processing efficiency and the operation convenience of the far end of the interventional micro catheter and the developing ring are improved, and the extra labor intensity of workers is greatly reduced.

The application provides a calendering method of aramid insulation paper, and relates to the field of high polymer chemistry and polymer processing, and comprises the following steps: step one, preheating aramid insulation paper; step two, feeding the substrate into a calendering machine, and performing calendering treatment at a set temperature, pressure and linear speed by using a multi-stage pressure control system; and step three, monitoring the thickness uniformity and surface quality of the aramid insulation paper in real time through an online detection system. The application has the following advantages: through the synergistic effect of multi-stage progressive pressure control, high-precision temperature regulation (±2 ℃) and optimized linear speed, and in combination with machine vision online detection and real-time feedback, the shortcomings of traditional calendering processes are effectively overcome, the surface smoothness, thickness uniformity and mechanical properties of the aramid insulation paper are significantly improved, the precision, efficiency and quality consistency of the production process are greatly improved, and the generation of surface defects such as stripes and corrugations is avoided.

This utility model relates to the field of extrusion die technology and discloses a segmented extrusion die, comprising: a mandrel and a die assembly and a temperature control system; the mandrel extends along a first direction and passes through the die assembly, and an annular extrusion gap for forming a pipe is formed between the outer peripheral wall of the mandrel and the inner peripheral wall of the die assembly; the die assembly includes multiple die segments connected sequentially along the first direction, each die segment being communicatively connected to the temperature control system, and the length L of each die segment in the first direction is ≤200mm. This utility model overcomes the limitations of integral temperature control, and performs segmented temperature control of the extrusion die, improving the production efficiency and quality of the pipe.

The utility model relates to gear machining technical field, concretely relates to a kind of grinding and polishing machine for mechanical gear machining, including fixed round table, four placing pedestals are equipped on fixed round table, four placing pedestals are respectively located in placing area, first grinding area, face-up area and second grinding area, the gear to be polished is placed on the placing pedestal of placing area, fixed round table rotates, the placing pedestal of placing area is transferred to first grinding area, the first grinding area includes first polishing mechanism, first polishing mechanism is used to polish and polish the front of gear to be polished, after polishing, fixed round table rotates, the placing pedestal of first grinding area is transferred to face-up area, face-up area drives gear to be processed to overturn, after overturning, fixed round table rotates and drives placing pedestal to move to second polishing mechanism, and second polishing mechanism is used to polish the back of gear to be processed. Through above mechanism, processing technology can be separated, and work efficiency is improved.

The utility model relates to an arc dresser structure used on numerical control vertical grinding machine, including base, cradle rotating arm, diamond roller, sliding block, diamond roller electric main shaft, casing, linear guide rail, cylinder, cylinder connecting plate, motor shaft, axle core and planetary reducer, the base is double lug plate side overhang structure, the both ends of base are connected with motor shaft and axle core through bearing respectively, the both ends of cradle rotating arm are connected to motor shaft and axle core respectively, one end of motor shaft is connected with planetary reducer, the middle of cradle rotating arm is provided with sliding mouth, the both ends of cradle rotating arm top are all provided with linear guide rail, solve the technical problem that the grinding wheel finishing in prior art scheme mostly adopts diamond pen to finish, and the diamond pen cannot complete the finishing of arc-shaped grinding wheel, leading to the machining precision of such workpiece being difficult to satisfy the requirement.

The utility model discloses a kind of medical titanium and titanium alloy bar polishing automatic limiting device, belong to polishing and grinding technical field.Device includes the first shock stop component, polishing component and second shock stop component sequentially arranged on mounting base along polishing process;Shock stop component structure is same, all include the support frame fixed in base, V type guide slot, the electric telescopic rod with pressure wheel in top and side proximity switch, receive proximity switch signal by PLC controller and control electric telescopic rod telescoping, dynamic regulation pressure wheel and bar contact pressure;Polishing component includes the polishing thousand feather wheel and polishing support wheel separately arranged in the both sides of bar, and they are driven by same motor by synchronous belt.The utility model cooperates through shock stop component, V type guide slot accurate guidance, synchronous drive polishing component and smooth material feeding, effectively reduce bar vibration deviation, improve polishing uniformity and surface finish, significantly improve the polishing precision and consistency of medical titanium alloy bar.

The utility model discloses a cold push board material mould, including mould body, be equipped with the feed channel, clothes rack type runner and forming channel that arrange in sequence in the mould body, the import end of clothes rack type runner communicates with the feed channel, the export end of clothes rack type runner communicates with the forming channel, the cross section size of export end of clothes rack type runner is less than the cross section size of forming channel to form the step face of setting towards the forming channel between export end of clothes rack type runner and the forming channel. The utility model can improve the surface finish of board product, can make board product surface more smooth and bright.

The utility model discloses a glass processing device, include: fixture body, grinding assembly and drive assembly, the chuck assembly for adsorbing glass is installed on fixture body, grinding assembly can carry out grinding to glass surface, the length direction of glass is first direction, drive assembly connects grinding assembly and can drive grinding assembly and moves along first direction, the length direction of grinding assembly is second direction, and second direction is perpendicular with first direction, and grinding assembly includes motor and cutter, and the shape of cutter is adapted with glass, and motor can drive cutter rotation and carries out grinding to glass surface, and the length direction of cutter is parallel with second direction. The utility model can guarantee the evenness to glass grinding, has avoided the problem that grinding is not sufficient or partial residual effectively, has promoted product surface quality significantly, makes product surface finish higher.

The utility model belongs to stirring device technical field especially relates to a kind of gypsum slurry stirring device, including support leg, support leg upper portion is provided with bearing disc, bearing disc upper portion is provided with sealed jar by fixed plate, stirring cavity is provided in sealed jar, sealed jar upper portion is provided with top cover, top cover is provided with stirring mechanism, top cover upper portion is provided with atomization water curtain mechanism, support leg one side is provided with support platform, support platform upper portion is provided with water tank, first micro water pump is connected in water tank upper portion, support platform upper portion is provided with bearing frame, second micro water pump is provided in bearing frame upper portion, support platform upper portion is provided with vacuum pump, vacuum pump is extended into sealed jar by vacuum pipe.This utility model whole process is in closed environment and is automatically operated, greatly improves production efficiency, slurry stability and production environment cleanliness, and is suitable for high-standard gypsum product scale manufacturing.

This invention discloses a continuous casting and rolling process for high-strength copper alloys, relating to the field of metallurgical engineering technology, comprising the following steps: (a) heating the copper matrix containing tin, zinc, and nickel, and adding appropriate amounts of rare earth elements, in a melting furnace to 1200-1300°C until a uniform copper alloy melt is formed; (b) maintaining the copper alloy melt in an optimal casting temperature range of 1150-1200°C using a holding furnace with temperature control function; (c) continuously casting the held copper alloy melt into long strip billets using a continuous casting machine equipped with an electromagnetic stirring device. The technical solution provided by this invention ensures the fluidity and purity of the copper alloy melt, significantly reduces inclusions using electromagnetic stirring technology, effectively promotes uniform solid solution of alloying elements and the formation of fine, dispersed strengthening phases, introduces a homogenization treatment stage, eliminates component segregation, and improves the uniformity of the material.

This utility model discloses an automatic spraying device for producing liquor bottle caps, including a bracket. A spray gun and an air gun are mounted on the side wall of the bracket. Multiple sets of transmission wheels are rotatably connected inside the bracket, and these sets are interconnected via a transmission belt. Multiple sets of rotating shafts are equidistantly arranged on the outer wall of the transmission belt. A sleeve is fixedly connected to the upper end of each set of rotating shafts. An adjustment groove is formed through the outer wall of the sleeve. Two sets of rotating plates are symmetrically arranged within the adjustment groove, and both sets of rotating plates are rotatably connected to the groove. Rollers are rotatably connected to the ends of each rotating plate. An adjustment mechanism for driving the rotating plates is installed within the adjustment groove. This utility model uses gears and racks to drive a threaded rod, which in turn drives a slider and a connecting plate to ensure that the rollers at the ends of the rotating plates fit against the inner wall of the bottle cap. This ensures stable rotation of the bottle cap under the drive of the air gun, avoiding localized overspray or underspray due to shaking, and improving the uniformity of the coating thickness.

This invention relates to the field of semi-solid materials and discloses a semi-solid pulping machine, including a frame, a pulping component and an ejection mechanism below the pulping component on the frame, a vertical channel penetrating the upper and lower sides of the pulping component on the pulping component, and an ejection mechanism including an injection rod with a punch at the top of the injection rod. The punch has a hollow structure and is slidably connected to the vertical channel and can close the lower end of the vertical channel. The top of the punch is perpendicular to the side wall of the vertical channel to produce aluminum material and prevent material from sticking.

This invention relates to the field of cup rim spinning technology, and discloses a cup rim spinning device for insulated cups, including a mounting frame, a rotating base, a horizontal plate, a first cylinder, a drive motor, a U-shaped bracket, and a spinning disc mounted on the mounting frame. It also includes a precision spinning mechanism disposed on the horizontal plate, comprising a fixed sleeve, an extrusion shaft slidably disposed within the fixed sleeve, and a pressure plate fixed to the extrusion shaft via a cross-shaped connecting plate. Through the cooperation of the extrusion shaft, pressure plate, pressure cap, first ball bearings, ring plate, and bushing, when the extrusion shaft presses down, the pressure plate and elastic element drive multiple first ball bearings at the bottom of the pressure cap to evenly abut against the ring plate, stably transmitting vertical pressure to the bushing and main shaft. This effectively reduces the deflection vibration of the main shaft during spinning, significantly improves the spinning accuracy of the spinning disc, and solves the problem of poor cup rim forming quality caused by insufficient main shaft accuracy in traditional equipment.

This invention provides a foamed ceramic composite machine tool bed with layered isolation between flow channels and ribs. It includes a foamed ceramic base with an internal channel structure comprising a cooling layer and a reinforcing layer. The cooling layer is located above the reinforcing layer, and the cooling layer and reinforcing layer are completely isolated by a solid foamed ceramic partition. The cooling layer contains multiple horizontally parallel flow channels, each with a sealing layer on its inner wall. The flow channels also have media inlets and outlets on the sidewalls of the foamed ceramic base. The reinforcing layer contains horizontal and vertical slots arranged in a three-dimensional mesh pattern. Reinforcing ribs fill these slots and are integrally formed with the foamed ceramic base, creating a built-in reinforcing skeleton. This foamed ceramic composite machine tool bed offers advantages such as strong active temperature control, no interference between the flow channels and the skeleton, simple manufacturing process, lightweight design, strong vibration absorption and damping capabilities, high structural strength, and good dimensional stability.