611results about How to "No scratches" patented technology

The invention relates to a hand, in particular to a flexible self-adaption under-actuated robot hand. The flexible self-adaption under-actuated robot hand comprises fingers and a wrist; the wrist includes a skeleton, a direct-current motor, a potentiometer and a winch; the direct-current motor is fixedly connected to a motor mounting surface of the skeleton; the potentiometer is fixedly connected to a potentiometer mounting surface of the skeleton by penetrating through an output shaft of the motor; the winch is fixedly connected to the tail end of the output shaft of the motor; multiple fingers are provided; and the fingers are embedded in clamping grooves of the skeleton or multiple clamping grooves through convex blocks of rotating bodies. The flexible self-adaption under-actuated robot hand is assembled at the tail end of an industrial robot for assisting mechanical assembly or mechanical manufacturing process and finishing automatic workpiece loading/unloading; and the fingers can flexibly adapt to geometric shapes of products, and realize automatic adjustment according to the geometric shapes of workpieces to realize stable grabbing.

The invention provides organic coatings with improved scratch resistance. More particularly, the present invention relates to the use of inorganic filler materials of a defined type and particle size which can be added to curable organic coatings to improve the scratch resistance of the coating without a negative impact on the physical and performance properties or application parameters of the original coating material.

The invention discloses a mechanical dry gas sealing device for pumps. The mechanical dry gas sealing device comprises a movable ring component and a fixed ring component, wherein the movable ring component comprises a spring box (1), a stopper screw (2), a spring (3), a sealing ring (4), a pushing ring (5), a snap spring (6) and a movable ring (7), and the fixed ring component comprises a fixed ring (12), an anti-rotating pin (9), a sealing ring (11) and a gland (8). The mechanical dry gas sealing device is characterized in that the sliding sealing ring (4) is mounted in a seam allowance groove (50) on the inner diameter of the front end of the pushing ring (5), the pushing ring (5) is in close fit with the rear end face (70) of the movable ring (7), and compression rate of the O-shaped sliding sealing ring (4) ranges from 2% to 5%. A sealing end face of the movable ring (7) of a compensation ring is a conical surface. A boss (83) is arranged on the inner diameter of a vertical end face (82) mounting a seam allowance groove (80) of the fixed ring (12) and is matched with the inner diameter of the inner end face of the fixed ring (12) in a support manner. An end face of the compensation ring of the mechanical dry gas sealing device is good in adherence. Besides, the mechanical dry gas sealing device is stable to run, high in interference resistance, good in sealing performance and suitable for diversified working conditions.

The invention provides pure-nickel metallographic etchant and a corroding method using the same. The pure-nickel metallographic etchant is prepared by mixing distilled water, 65-68% concentrated nitric acid and 99.5% glacial acetic acid. The corroding method using the pure-nickel metallographic etchant includes: preparing a pure-nickel sample, using the etchant to perform metallographic surface corrosion, observing with a metallographic microscope, and analyzing a metallographic structure through metallographic structure morphology and crystal boundary observation. The pure-nickel metallographic etchant has the advantages that the glacial acetic acid is added according to strict proportion and appropriate amount and acid-water mixture is added, the corroded metallographic sample is allowed to have the clear metallographic structure, the etchant can fast and effectively erode the metallographic structure of the sample, the clear metallographic structure of the pure-nickel metallographic sample can be observed after corrosion, and evident boundary and contrast exist among different phases.

The invention provides a device which has a simple structure and can be used for automatically drilling a large-size compound cylinder in batches along a radial direction aiming at the problems of difficulty in tool setting and low drilling efficiency in the process of drilling the large-size compound cylinder along the radial direction. A processing mode of processing from inner to outer is adopted in the drilling device, thereby avoiding the fiber tearing and layering on the inner wall of a cylinder made of compound materials. By using a double-power head for drilling, first and second rows of holes can be processed at the same time. In order to change a drilling position, a drilling unit is rotated without moving the large-size compound cylinder, thereby widening the processing range. And meanwhile, a drilling device bracket is designed for storing and mounting the drilling device and avoiding the rubbing between the drilling device and the inner wall of the cylinder.

The invention relates to a polishing disk for polishing crystal glass. In the polishing disk for polishing crystal glass, a polishing layer comprises the following components in percentage by mass: 5 to 60 percent of grinding material, 10 to 60 percent of unsaturated resin with water swelling property, 0.5 to 5 percent of curing agent, 0.1 to 30 percent of water soluble additive and 0.05 to 8 percent of functional regulating additive, wherein the total mass percentage of the components is 100 percent. The grinding material may be diamond, carborundum and aluminum oxide. The polishing disk solves the problem that the diamond, carborundum, aluminum oxide and the like, which are harder than workpieces, cannot be used as a grinding material on the polishing disk, and has the advantages of high processing efficiency, high wear resistance and long service life.

The invention relates to a manufacturing method of low-emissivity coated laminated glass capable of removing a film in the peripheral area and being bent by fire drying. The manufacturing method comprises the following steps of firstly, pretreating a raw glass sheet: performing slicing, sheet loading, cutting, edging, washing and drying treatment on the raw glass sheet to obtain an automotive-grade raw glass sheet; secondly, coating a film: coating a low-emissivity film layer on the surface of the automotive-grade raw glass sheet by using magnetron sputtering coating equipment; thirdly, removing the film: using robot arms to control a laser for instantly evaporating a low-emissivity film layer material in an area which does not need coating, of the automotive-grade raw glass sheet; fourthly performing posttreatment: performing drying, powder spraying, pairing, fire drying-bending, laminating, and high-pressure and packaging treatment on the automotive-grade raw glass sheet to obtain the low-emissivity coated laminated glass capable of removing the film in the peripheral area and being bent by fire drying. Compared with the prior art, the manufacturing method disclosed by the invention has the advantages that the uniformity in coating is realized, an electromagnetic wave signal is enabled to pass through, a low-emissivity function is guaranteed, and a glass double-image is small in area; the manufacturing method is suitable for preparing coated glass in automobile windscreen and skylight laminated glass.

The invention relates to a metallic bond, a diamond grinding wheel prepared through the bond and a preparation method of the diamond grinding wheel. The metallic bond comprises, by weight percent, 95%-99% of copper-tin prealloyed powder, 0.5%-3% of graphite powder and 0.5%-2% of nanometer alpha-Al2O3. The copper-tin prealloyed powder, the graphite powder, the nanometer alpha-Al2O3 and diamond are taken according to a certain proportion, procedures of burdening and material mixing, pelletizing, compression, sintering and aftertreatment are carried out in sequence, and tool bits can be prepared. The multiple tool bits are arranged on a matrix at equal distance in the circumferential direction, the cambered surfaces of the tool bits are perpendicular to the matrix, and the diamond grinding wheel is prepared. The above tool bits are uniform in ingredient and good in density, diamond distribution is uniform, and the control effect of the metallic bond on the diamond is good. The grinding wheel has the beneficial effects of being good in ground workpiece surface quality, free of dark cracks and scratches, sharp in grinding and long in service life, facilitating large-scale production and the like and is especially suitable for producing sapphire wafers with the thinning thickness ranging from 100 micrometers to 700 micrometers.

The invention relates to a grinding procedure of a sapphire crystal, belonging to the field of a process technology of a crystal material. The invention provides grinding liquid for a high-quality sapphire substrate. The grinding liquid is prepared from diamond micropowder, auxiliary grinding powder, de-ionized water, glycerol and an additive. The grinding liquid prepared by the method is uniform in dispersion and good in chemical stability; the grinding liquid prepared by the method provided by the invention is used for grinding the sapphire crystal so that the grinding efficiency is improved on the precondition that the surface quality of the substrate is guaranteed and the processing cost is effectively reduced. The sapphire substrate grinded by the grinding liquid disclosed by the invention has the advantages of low surface roughness, good flatness, no obvious scratches and easiness for washing, and meets the requirements of industrial production.

The invention relates to an improved corrugated board production line which comprises an inner body paper rack used for placing corrugated inner paper of the corrugated board, an inner paper preheating cylinder used for heating the corrugated inner paper, a corrugated body paper rack used for placing the corrugated paper, a corrugated paper preheating cylinder used for heating the corrugated paper, a corrugating machine used for corrugating the corrugated paper and adhering the corrugated inner paper and the corrugated paper, a surface body paper rack used for placing corrugated surface paper, a pasting machine used for gluing the to-be-adhered upper surface of the corrugated paper, and a double-faced machine used for adhering the to-be-adhered upper surface of the corrugated paper and the lower surface of the corrugated surface paper. The improved corrugated board production line disclosed by the invention is compact in structure, reasonable in design and convenient to use, has the capacities of saving energy, reducing consumption, optimizing the process and lowering the cost, and is suitable for large-scale popularization.

The invention relates to a heat spraying aluminium zinc alloy wire rod composition and its preparing process, wherein the constituents (by weight percentage) of the wire rod include Al 54-56%, 0.004%<=M<=1.08%, impurity whose total amount is less than 1%, and balancing Zn, M is any one or the combination of RE, Mg, Ti or B.

The invention relates to shell flanged hole part forming methods, in particular to a magnetic pulse flanged hole forming method for shells. The method aims at solving the problems that in the flanged hole manufacturing process of an existing steel die hole flanging method, the technology is complex, the production efficiency is low, and the production cycle is long. The method comprises the steps that firstly, the shape of a flanged hole coil bobbin is designed according to a curved surface shell with pre-manufactured holes; secondly, the curved surface shell with the pre-manufactured holes is arranged on a flanged hole forming female die, an edge pressing ring is arranged on the inner surface of the curved surface shell in the periphery direction, a hole flanging coil matched with the hole flanging deforming area is wound on the flanged hole coil bobbin, covers the hole flanging deforming area and is attached to the hole flanging deforming area, one end of a capacitor set is connected with one terminal of the hole flanging coil, the other end of the capacitor set is connected with one end of a gap switch, the other end of the gap switch is connected with the other terminal of the hole flanging coil, and the capacitor set is charged to reach the preset voltage value; thirdly, magnetic pulse flanged hole forming is carried out; fourthly, flanged holes are corrected. The method is used for forming flanged hole parts of shells.

The invention provides a high-surface-quality aluminum coating steel plate and a production method thereof. The high-surface-quality aluminum coating steel plate and the production method thereof comprises a substrate and a coating layer; the substrate contains C larger than or equal to 0.0010% and less than or equal to 0.25%, Si larger than or equal to 0.010% and less than or equal to 0.60%, Mn larger than or equal to 0.06% and less than or equal to 2.0%, P less than or equal to 0.015%, S less than or equal to 0.025%, 0.030% to 0.055% of Als, N less than or equal to 0.0050%, Ti less than or equal to 0.10%, Nb less than or equal to 0.10%, Cr less than or equal to 0.15%, B less than or equal to 0.0035%, and the balance Fe and inevitable impurities. The coating layer contains 7% to 11% of Si, 1.0% to 3.0% of Fe, 0.05% to 0.20% of La, 0.05% to 0.2% of Ti, and the balance Al and inevitable impurities. Compared with the prior art, the aluminum coating silicon steel plate produced by the method is high in surface quality, no obvious aluminum flowers are seen, and the surface quality reaches more than FC grade.

A plate stacking machine for the shaped plates is composed of a moving, locating and plate lowering system consisting of machine frame, parallel two longitudinal beams, driver unit, controller, conveying belt, electromagnetic suction block, and automatic locating block, an automatic lifting-lowering platform, coaxial two horizontal stop blocks under the plate inlets and perpendicular to longitudinal beam, another two stop blocks on said longitudinal beams, and an inductor between said another two stop blocks and connected electrically to said controller.

The invention relates to an automatic control system and method for a high-precision straightening machine and belongs to the field of automatic control. Through the automatic control system and method, the straightness (curvature) reaches over 0.3 mm/m according to the straightening precision of the high-precision straightening machine; a hardware structure and a software method of the automatic control system for the high-precision straightening machine are designed considering closed-loop control of oil source pressure and oil cylinder piston displacement of a hydraulic system of the high-precision straightening machine, continuous detection of straightening operation process data, stepless speed regulation control for calibrating transmission of all sets of straightening rollers and the like, the international advanced level of three-dimensional rotation straightening under high-precision automatic control is reached, consistency of roller gap precision in the straightening process, stability of evenly distributed and balanced straightening force and reliability of nonlinear variable gain automatic compensation can be guaranteed, the straightness is improved to 0.2 mm/m from 0.3 mm/m according to the straightening precision of the high-precision straightening machine, and the straightening target that straightened materials have no blind area or tiny crack or scratch or oval or bounce is achieved.

The invention relates to the technical field of laser processing and lasers, in particular to a protection method and a protection device for a lens of a laser compounded life-prolonging laser for a heat-resistant part. A protection disk which is orderly connected with a servomotor, a frame, a control system, a protective cover, and a protection glass cleaning device is arranged between the lens of the laser and a test specimen to protect the lens; during a pulse interval of laser shock, the servomotor drives the protection disk to rotate with certain angle; during the continuous laser action of laser cladding and quenching, the servomotor drives the protection disk to continuously rotate, so a polluted position of the protection disk is away from a laser working position; the position of the protection disk which is quickly cleaned by the protection glass cleaning device moves to the laser working position and prepares for continuous laser work; at the same time, the protection glass cleaning device cleans and dries the polluted position of the protection disk. The protection device has the advantages that the protection device has a simple structure and low cost, simplifies the cleaning process of the lens, has no scratches on protection glass, and is convenient to realize multi-point continuous shock and long laser cladding and quenching.

The invention relates to a cold-bending forming machine for a high corrugated steel floor deck. The cold-bending forming machine for the high corrugated steel floor deck comprises an automatic uncoiler, a machine frame, a guiding device, a lubricating device, a cold-bending forming roller set, a hydraulic cutting device and a stacking machine, wherein the automatic uncoiler is arranged at one side of the machine frame, and the stacking machine is arranged at the other side of the machine frame. The guiding device, the lubricating device, the cold-bending forming roller set and the hydraulic cutting device are sequentially installed on the machine frame, and the guiding device is arranged at one side of the automatic uncoiler. The cold-bending forming roller set comprises a plurality of rolls, and the rolls are unequally distributed at intervals. The cold-bending forming machine for the high corrugated steel floor deck has the advantages of being high in forming speed, applicable to cold rolling galvanized steel sheets or color plates with the rolling thickness of 0.7-1.5 mm and the yield strength of 230-350 MPa, or applicable to the construction steel floor deck with the rolling corrugated height of 120-220 mm and the substrate developed width of 900-1500 mm. By means of the cold-bending forming machine for the high corrugate steel floor deck, the coating or the plating of the rolled tubular products is not scratched, no visible bag-shaped wave, thus the forming quality of the products is enabled to be good.