10067 results about "Polishing" patented technology

The present invention intends to provide a polishing pad and a multi-layer polishing pad that can particularly effectively suppress scratch from occurring. The polishing pad of the invention comprises at least one part selected from a groove (a) having at least one kind of shape selected from annular, lattice-like and spiral form on a polishing surface side, a concave portion (b) and a through hole (c). In the above, surface roughness of an inner surface of the part is 20 mum or less and the polishing pad is used for chemical mechanical polishing.

The invention is concerned with simulation diamond end face polishing-grinding machining method and the expert polishing-grinding machining. Set stuff and put molding plastics-absorption tray on fixture tray and make the concave face of plastics-absorption tray upside, and the simulation diamond adsorbs on the convexity of the bottom to plastics-absorption tray. Set plastics-absorption tray on the polishing-grinding machining and mill the tine end of simulation diamond on calm millstone. The polishing-grinding machining relates rack with a level millstone at its middle, and there are two level trays. They are centrosymmetric to the axis of millstone on top of millstone and have plastics-absorption tray on them. There is up and down equipment for tray on top of level tray which connecting with two turning axes on two sides of millstone with level rack, and the other end of turning axis has running equipment of turning axis. It has large machining amount of each time, high produce efficiency, good ratio to excellent stuff, long work time, easy operation without waste of material.

The present invention provides a surface processing system for a work piece in the mechanical technical field. The system comprises at least one group of polishing units. A manipulator and several polishers with different polishing precisions are provided on the polishing units. The polishers are arranged around the manipulator in turn. The work piece could be moved by the manipulator between the processing center and the polishing units. The machined work piece is loaded by the manipulator for one time when the manipulator is located at the processing center. When the manipulator is located at the polishing units, the manipulator keeps holding the work piece and transfers the work piece in a preset sequence to each polisher corresponding to the polishing unit where the manipulator is located. The surface of work pieces having different wall thicknesses and complex surfaces could be processed in a large batch with a high efficiency.

The invention relates to a grinding and polishing machine for processing ornamental artificial gems, crystals or glass beads, in particular to a full-automatic ornament grinding and polishing machine. The invention discloses the full-automatic ornament grinding and polishing machine with the characteristics of one-step product forming, integration of all working procedures, high production efficiency and simple structure. The invention realizes the full-automatic processing of crystal diamonds and other ornaments by using one machine. In a main scheme provided by the invention, a spindle assembly is arranged in the middle of a rack, the upper end of the spindle assembly is provided with a turntable, the turntable is provided with a plurality of cantilevers which are uniformly distributed by taking a center axis position of the spindle assembly as a center, and the tail end of each cantilever is provided with a mechanical arm; a feeding and discharging integrated assembly, at least onefront grinding integrated assembly, at least one front polishing integrated assembly, a through-connection integrated assembly, at least one rear grinding integrated assembly and at least one rear polishing integrated assembly are respectively distributed on the rack in a working sequence; and all the assemblies are connected end to end.

Disclosed are a flexible polishing sheet and a production method thereof. The flexible polishing sheet is high in grinding efficiency, fast in polishing and brightening rate, long in service life and low in cost, and is provided with a flexible base layer and a polishing layer coated on the surface of the flexible base layer, or the flexible polishing sheet is made of fibers and polishing abrasive material by mixing and hot pressing, and the mass ratio of the fibers to the polishing abrasive material is (20-40):(80-60). The flexible polishing sheet can be used for directly polishing a material with no extra polishing powder or polishing paste to be added on the surface of the material, so that great loss of polishing materials is avoided, cost is saved, brightening speed is fast during polishing, efficiency is high, and the flexible polishing sheet is resistant to wearing and long in service life. The flexible polishing sheet can be easily made into large-sized flexible polishing products, the polishing area is enlarged evidently, and the polishing efficiency is improved. The flexible polishing sheet can also be made into highly flexible polishing products of different granularities from thickness to fineness, and can be used for polishing uneven surfaces, edge and corner surfaces and the like step by step.

The invention discloses a polishing device for hub processing of a new energy automobile, and relates to the technical field of automobile part processing. The polishing device comprises a worktable,a hub top polishing mechanism, a hub side polishing mechanism and a hub limiting rotation mechanism, wherein the hub top polishing mechanism is arranged above the worktable, the hub side polishing mechanism is arranged at the top of the worktable, and the hub limiting rotation mechanism is arranged below the worktable; the hub limiting rotation mechanism comprises a height adjustment assembly, a hub inner circle fixing assembly for clamping a hub inner circle and a rotating assembly for driving the hub to rotate, and a through hole is formed in the top of the worktable so that the hub inner circle fixing assembly can lift and pass through the through hole. According to the invention, the polishing device can clamp the hub inner circle and drive the hub to rotate under the action of the hublimiting rotation mechanism, the angle adjustment of a grinding wheel can be realized through the hub side polishing mechanism, and then polishing chamfering operation on the top surface of the hub is realized.

The invention relates to grinding and polishing equipment, in particular to round wood grinding and polishing equipment. The technical problem of the invention is about provision of the round wood grinding and polishing equipment which can make working personnel easier and save time. The round wood grinding and polishing equipment comprises an operating table, a speed reducing motor, a clamping component, guide rails and the like; the upper side of the operating table is in bolt connection with the speed reducing motor and at least two guide rails; and the clamping component is mounted on thespeed reducing motor and is used for clamping a round wood. According to the round wood grinding and polishing equipment, the round wood can be driven to rotate clockwise through the speed reducing motor; the round wood can be ground by the grinding component, so that the round wood can be rotated automatically and can be ground automatically; therefore, people can be easier and time can be saved;and the leftward moving speed of a grinding wheel can be more uniform through a moving component, so that the grinding and polishing quality of the round wood is not affected.

The present invention is a carrier for a double-side polishing apparatus in which, in a double-side polishing apparatus, the carrier is set between upper and lower turn tables to which polishing pads are attached, and a holding hole to hold a wafer sandwiched between the upper and lower turn tables in polishing is formed in the carrier, wherein the carrier is made of titanium. Thereby, there is provided a carrier for a double-side polishing apparatus in which the strength of the carrier itself is high, and at the same time, contamination of a wafer such as a silicon wafer by impurities is suppressed, and sag in a peripheral portion of the wafer after being polished is suppressed.

A metallographic corrosion method for displaying a GCr15 original austenitic grain boundary comprises adding picric acid 5g into distilled water100ml and mixing continuously, then adding sodium dodecyl benzene sulfonate 5ml 50% and mixing, finally adding ferric chloride 2g, and using after placing for 24 hours. A sample is grinded roughly, grinded finely, polished, cleared, dried, immersed into caustic erodent for 2-5 minutes according to normal method under a quenching tempering condition until etched surface is changed into silver grey, cleaned up through flowing water, cleaned with alcohol 95%, and dried. If the sample is over-corroded, polishing paste W0.5-1.0 or metallographic polishing egent0.5-1.0 is added on silk polishing cloth, the sample is polished slightly with hands, then cleaned with alcohol 95%, and dried. According to practical condition, grain granularity measurement can adopt methods of picture contrast, grid, intercept, quantitative metallography, and the like, to assess according to relevant standards.

The present invention is a wafer polishing method including simultaneously polishing both surfaces of a wafer by pressing and rubbing the wafer, while holding the wafer with: a lower turn table having a flat polishing-upper-surface rotationally driven; an upper turn table having a flat polishing-lower-surface rotationally driven, the upper turn table being arranged with facing to the lower turn table; and a carrier having a wafer-holding hole for holding the wafer, wherein the polishing is performed while measuring a thickness of the wafer through a plurality of openings provided between a rotation center and an edge of the upper turn table or the lower turn table, and switching a polishing slurry with a polishing slurry having a different polishing rate during the polishing of the wafer. As a result, there is provided a wafer polishing method that can manufacture a wafer having a high flatness and a high smoothness at high productivity and high yield.

An ultrasonic control shear thickening and polishing method comprises the following steps of 1 adding a non-Newtonian fluid polishing solution mixed with abrasive particles and having the shear thickening effect into a polishing pond and fixing a workpiece on a clamp, wherein the clamp is located above the polishing pond; 2 starting a polishing solution circulating system to enable the non-Newtonian fluid polishing solution to be circularly pumped out of the bottom of the polishing solution and fed into the upper portion of the polishing pond; 3 starting an ultrasonic wave generating device, and meanwhile setting the vibration frequency and vibration amplitude to enable the non-Newtonian fluid polishing solution in the polishing pond to rapidly vibrate and produce a strong shear thickening phenomenon; 4 adjusting the clamp to enable the workpiece to perform relative motion, wherein the abrasive particles having the polishing effect produce the micro-cutting effect or chemical mechanical effect on the workpiece to remove materials on the workpiece surface, and accordingly the workpiece surface polishing is achieved. The invention further provides an ultrasonic control shear thickening and polishing device. The ultrasonic control shear thickening and polishing method and device is high in polishing efficiency and low in cost.

The invention discloses a dust reduction type steel plate double-face efficient polishing device which comprises an operation chamber. A driven shaft is vertically and rotationally arranged in the operation chamber, and a polishing plate is coaxially and fixedly installed at the bottom end of a driving shaft; a guide rod connected with the left side wall of the operation chamber in a sliding manner is horizontally arranged at the left end of a dual-rectangle-shaped frame, and a sliding rod movably connected with a vertical plate is horizontally arranged at the right end of a support; and a limiting spring is arranged on the sliding rod on the vertical plate at the right end of the upper surface of a bearing table in a sleeving manner, a positioning disc is fixedly installed on the right side of the vertical plate at the right end, a center hole is formed in the center of the positioning disc, and an upper positioning hole and a lower positioning hole which are subject to up-and-down vertical symmetry with respect to the center of the center hole are formed in the positioning disc. The dust reduction type steel plate double-face efficient polishing device is ingenious in structure and reasonable in design; the polishing plate is driven by a driving motor to achieve rotary polishing on a steel plate, the polishing scope is wider, and the steel plate polishing efficiency is improved; and the sliding rod is rotated to drive an L-shaped positioning shaft to rotate, and therefore double-face polishing on the steel plate can be achieved, and the overturning operation is easy and convneient.

The invention discloses an austenitic stainless steel with excellent polishing performance. The austenitic stainless steel comprises the following chemical components in percentage by weight: 16 to 20 percent of Cr, 7 to 15 percent of Ni, less than or equal to 2 percent of Mn, 0.2 to 2 percent of Cu, less than or equal to 0.05 percent of Al, less than or equal to 0.5 percent of Si, 0.03 to 0.1 percent of C, less than or equal to 0.05 percent of N, 0.01 to 0.06 percent of P, 0.003 to 0.05 percent of S, 0.05 to 0.5 percent of V, and the balance of iron and inevitable impurities. A manufacturing method for an austenitic stainless steel cold-rolled plate comprises the following steps of: heating a continuous cast plate blank to the temperature of between 1,100 and 1,300 DEG C; performing rough rolling at the temperature of between 1,000 and 1,250 DEG C; performing final rolling at the temperature of between 950 and 1,100 DEG C; performing quick cooling; coiling at the temperature of less than 700 DEG C; performing hot rolling to form a hot-rolled plate of the required specification; annealing the hot-rolled plate at the temperature of between 950 and 1,200 DEG C; removing oxide skin by adopting a continuous acid washing process of phosphorus breakage, shot blasting, electrolysis and mixed acid washing; performing cold rolling, wherein the overall reduction rate is more than 50 percent; and performing continuous annealing at the temperature of between 950 and 1,200 DEG C, or performing full-hydrogen bright annealing at the temperature of between 950 and 1,200 DEG C. The austenitic stainless steel cold-rolled plate has completely improved grinding performance and surface polishing performance, and is particularly suitable for the industries of building decoration, plastic dies, food sanitation, electronics and the like with strict polishing performance requirements.

The invention discloses a surface contact magneto-rheological flat polishing device and method with a uniform magnetic field. The surface contact magneto-rheological flat polishing device with the uniform magnetic field comprises a polishing head, a polishing groove fixed onto a main shaft and a magnetic pole arranged under the polishing groove. The magnetic pole maintains a certain gap from the outer surface of the bottom of the polishing groove; the polishing head comprises a workpiece shaft and a non-magnetic-conducted clamp fixed to the lower end of the workpiece shaft, and a soft magnetic plate is arranged between the non-magnetic-conducted clamp and the workpiece shaft; the polishing head is arranged above the polishing groove; the uniform magnetic field is formed between the magnetic pole and the soft magnetic plate; and the polishing groove is filled with magneto-rheological fluid. The surface contact magneto-rheological flat polishing device and method with the uniform magnetic field can achieve the large-area uniform polishing of a super-smooth large-size flat element and improve the polishing efficiency effectively; reduces the complexity of the motion mode of a workpiece to simplify the device structure; enables the magnetic field to be not easy to attenuate and obtains the uniform magnetic field with a magnetic pole gap of 30 mm; and can achieve demagnetization easily.

The invention provides a compound polishing powder of a polishing optical element, a preparation method and a polishing process, belonging to expendable material used for polishing the optical element, the preparation method and the polishing process of the polishing powder; wherein, the polishing powder comprises 0.5-3 of Cr2O3 powder and 1 of Al2O3 according to the weight proportion; the granularity of the Cr2O3 powder is ranging from 0.05 microns to 0.10 microns and the granularity of the Al2O3 powder is ranging from 0.05 microns and 0.10 microns; the polishing process comprises the steps as follows: 1) installing polishing formworks for the optical element; 2) filling the polishing powder; 3) arranging a lens disc; 4) fixing the lens disc; 5) rubbing and polishing. The polishing formwork comprises 500 of polishing asphalt and 20-200 of Al2O3 according to the weight parts; in the polishing process, the polishing powder and the polishing formwork can be used for polishing the optical element which is made of zinc selenide, with the surface smoothness of more than 20-10.

The invention discloses a stone-imitating porcelain tile with three-dimensional decoration effects and a producing method thereof. The method includes A) preparing a porcelain tile blank powder material according to conventional methods, B) preparing a porcelain tile backing material and a surface material, C) preparing a porcelain tile blank, D) drying the blank, E) spraying with the backing material, F) performing digital ink-jet printing, G) coating with the surface material by printing, H) drying the blank coated with the surface material, I) firing and J) performing edge polishing. Beneficial effects of the porcelain tile and the method are that the problems in the prior art due to a high using amount of surface layer pulp and dyeing assistant agents, namely high costs and absence of three-dimensional pattern expression in pattern textures, are overcome; technical problems that porcelain color-penetrated tiles at present are inaesthetic due to bottom exposure caused by slotting, chamfering, and other types of processing are overcome, and the producing method is provided for the porcelain tile that is environmental friendly, economical and richer in decoration effects.

The invention discloses a device and a method for efficiently polishing and processing high-precision balls in a cluster magneto-rheological mode. The device comprises upper and lower polishing discs,and a magnetic field generator. Under action of magnetic fields, viscosity of magneto-rheological fluid which enters V-shaped slots of the polishing discs is increased within extremely short time, and a magnetic chain string clamps abrasive particles to form a flexible polishing pad; ceramic balls are coated by the flexible polishing pad in the V-shaped slots; and along with motion (auto-rotationduring revolution) of the polishing discs, the surfaces of the ceramic balls are polished by the abrasive particles in the magneto-rheological flexible polishing pad. The device does not need to adopt a circulating device for regenerating the magneto-rheological fluid, so that the whole process from rough polishing to fine polishing of the ball bodies can be realized through once clamping; and anobtained workpeice is good in surface consistency, is stable in shape precision, is high in processing efficiency, and is free of surface and sub-surface damages; and moreover, the device is low in cost, and is suitable for high-efficiency ultra-smooth uniform grinding and polishing of high-precision ceramic balls in ceramic ball bearings.

The invention discloses an optical mirror ion beam nano-precision machining method based on combination of material addition and removal, and the method comprises the following steps: firstly obtaining an addition function, then measuring the surface shape error of a workpiece to be machined, and determining addition residence time according to a two-dimensional convolution formula by taking a numerical value obtained by inversing a measuring result as the additive amount of materials; according to the addition residence time, using an ion beam polishing system to perform deterministic addition control on the workpiece to be machined so as to form a protective sacrificial layer; measuring the surface shape error of the workpiece to be machined again, and then determining removal residence time according to the two-dimensional convolution formula by taking the measuring result as the removal amount of the materials; and using the ion beam polishing system to perform deterministic removal control on the workpiece until removing the protective sacrificial layer so as to complete optical mirror nano-precision machining for the workpiece to be machined. The optical mirror ion beam nano-precision machining method has the advantages of simple processing steps, less investment in equipment and high machining efficiency, and can be used for effectively improving the surface roughness of an optical element, correcting the medium-high frequency error, and the like.

The present invention discloses a kind of chemical and mechanical polishing fluid, which includes at least one kind of grinding grain, one kind of chemical additive and one kind of carrier, where the chemical additive is polycarboxylic acid and/or its salt. The chemical and mechanical polishing fluid can raise the flatness of the polished metal surface, lower the metal polishing rate obviously, optimize the dielectric polishing rate and expand technological parameter window.

The invention relates to a stainless steel plate 8K mirror surface processing method, which is characterized in that the method comprises the following steps of: 1) water washing: cleaning sundries on the surface of a stainless steel plate; 2) rough polishing: polishing the surface of the stainless steel plate by using a rough polishing abrasive tool, i.e. a graphite wheel till the surface is evenly treated and is free of pocking marks, wherein the polishing gap is half of diameter of the polishing wheel; 3) precise polishing: precise polishing the surface of the stainless steel plate by using a precise polishing abrasive tool, i.e. a wool felt, in combination with polishing solution till the surface is free of wheel knurls and fine scratches and is uniform; 4) water washing and drying: washing the stainless steel plate with water and blow-drying the stainless steel plate by using a dryer; and 5) film sticking: sticking a film by using a stainless steel plate film sticking machine. By using the stainless steel plate 8K mirror surface processing method, the surface of a stainless steel plate production can be polished to an 8K mirror surface from a 2B or rougher surface, the mirror surface is bright, gorgeous, attractive and generous, and the processed product satisfies the requirements in SN/T1671-2005 Rules for Inspection of Surface Quality of Stainless Steel Decoration Sheets for Export.

A polishing apparatus is configured to simultaneously polish both surfaces of a work, and includes a pair of stools rotating in opposite directions, a pair of detecting units configured to detect rotation rates of the stools, a pressurizing unit configured to compress the work between the pair of the stools, a slurry supply unit configured to supply a slurry to the stool, and a control unit configured to reduce, when determining that a frictional force between the polishing surface and the work exceeds a threshold, at least one of a load applied by the pressurizing unit, the rotation rate of the stool, and a supply amount of the slurry supplied by the slurry supply unit.

The invention discloses a pipe fitting end polishing device. The pipe fitting end polishing device comprises a pedestal, an overturning clamping platform, an outer circle polishing mechanism and an inner circle polishing mechanism, wherein the outer circle polishing mechanism and the inner circle polishing mechanism are arranged on the pedestal. The overturning clamping platform is arranged on oneside of the pedestal through a first guide rail sliding table, the outer circle polishing mechanism and the inner circle polishing mechanism are arranged on the opposite sides of the overturning clamping platform, and the overturning clamping platform is provided with a multi-claw rotary chuck. The inner circle polishing mechanism comprises a cross-shaped sliding table and a polishing device bodyfixed to the top face of the cross-shaped sliding table. The outer circle polishing mechanism comprises a second guide rail sliding table which is driven by a worm wheel and a worm to rotate and a polishing device body which is fixed to a sliding block of the second guide rail sliding table. The pipe fitting end polishing device is suitable for automatically polishing or derusting the inner walland the outer wall of an end opening of a straight-pipe flange, the manual polishing efficiency is improved, the labor intensity of people is relieved, and the surface polishing smoothness requirementor the surface derusting quality requirement of a polishing region to be welded are met.

The invention relates to the technical field of aluminum substrate production and machining, in particular to integrated equipment for cutting, drilling and polishing an aluminum substrate. The integrated equipment comprises a feeding assembly, a cutting assembly, a polishing assembly and a drilling assembly, wherein the polishing assembly comprises a turntable, a rectangular table, two end polishing mechanisms and two edge polishing mechanisms; the feeding assembly comprises a first fixed clamp and a first movable clamp; the arrangement directions among the turntable and the two end polishingmechanisms and among the rectangular table and the two edge polishing mechanisms are perpendicular to the arrangement direction among the first fixed clamp and the first movable clamp; the cutting assembly comprises a circular saw blade and a moving mechanism; the circular saw blade is fixedly connected with the moving mechanism through a telescopic cylinder; the drilling assembly comprises a discharging mechanism and a drilling mechanism; and the first fixed clamp, the first movable clamp, the turntable and the rectangular table are sequentially arranged in a straight line. According to theintegrated equipment, the problem that cutting, grinding and drilling cannot be completed at a time when the aluminum substrate is machined, the time is saved, and the manpower and the cost are reduced.