37results about How to "Small kerf" patented technology

The invention provides a method for cutting a transparent material by using ultra-short pulse laser. The ultra-short pulse laser output by an ultra-short pulse laser generating device is condensed by a condensation device so as to form a bunching laser beam; the bunching laser beam enters from the surface of the transparent material to be machined, so that the center refractive index at a laser application point is increased to form a waveguide structure along a laser emitting direction; the laser is transmitted to the inside of the transparent material along the waveguide structure, and continuously generates a waveguide structure along the laser emitting direction in a transmission process until the entire waveguide structure and the laser penetrate through the transparent material; and therefore, the laser moves in a direction which is vertical to the surface of the transparent material at uniform speed, so that a waveguide plane is formed in the transparent material. The invention further provides a device for cutting the transparent material by using the ultra-short pulse laser. The method and the device for cutting the transparent material by using the ultra-short pulse laser provided by the invention have the advantages of fast cutting speed, small cutting seam, no material consumption and no powder pollution. When the machined material bears a suitable external force, the material is cracked only along a stress fault surface; the broken surface nearly has no conical degree; and the roughness is good.

The invention discloses a diamond bead string and a manufacturing method thereof as well as a diamond bead string rope saw without a base body supporting layer. The manufacturing method of the diamond bead string comprises the following steps of: uniformly mixing metal powder, diamond and an organic binding agent; manufacturing a rough blank of the diamond bead string through a pre-hot-pressing modeling or metal injection molding (MIM) process; and obtaining a finished product of the diamond bead string by placing the rough blank in a high-temperature furnace for one-step sintering modeling process after degreasing. The manufacturing method of the diamond bead string provided by the invention can be used for sintering the rough blank in one step to form an entire cylindrical bead string without a bead string base body layer; the external diameter of the bead string becomes smaller, so that the bead string can be directly stringed into a steel wire rope to obtain a diamond rope saw with a smaller external diameter; the bead string is molded through one step without a last-stage permeation process, so that the production cost of the diamond bead string is greatly reduced. Furthermore, the diameter of the diamond rope saw is smaller, and a cutting seam of a stone material to be cut is smaller, so that the yield of rough stone block is improved. The manufacturing method of the diamond bead string is beneficial to large-range popularization and utilization of the diamond rope saw.

The invention relates to a novel stone cutting winding device and a stone cutting sawing machine. A stone transferring trolley and two parallel cutting transferring supports are included, and cuttingtransferring guide rails are arranged at the top ends of the cutting transferring supports. The stone transferring trolley is evenly provided with a plurality of sets of vertically-arranged oil cylinders, and the tops of each set of oil cylinders are connected through a horizontal supporting rod. The cutting transferring guide rails are provided with a cutting base, installing bases are fixedly arranged at the two ends of the cutting base, and a wire passing guide wheel and a first cutting guide wheel which are horizontally arranged are arranged between the upper portions of the two installingbases, and a horizontally-arranged second cutting guide wheel is arranged between the lower portions of the two installing bases. Through a wire passing guide rail, the angle of a diamond cutting wire passing through the wire passing guide wheel changes, and accordingly, a front diamond wire cutting wire and a rear diamond wire cutting wire are located on the same plane. Each set of oil cylinderscan sequentially ascend and descend according to needs to support smooth passing of a cutting wire net, and accordingly, the wire net smoothly passes through a loading trolley under the situation that the loading trolley is not damaged.

The invention relates to a large area super-flat reinforced concrete floor and colorful diamond sand surface layer one-step forming method. The one-step forming method comprises the steps of template erection, steel bar binding, expansion reinforcing band arrangement, elevation measurement, steel bar elevation check, laser leveler adjustment, concrete pouring, laser leveler leveling, professional leveling, diamond sand spreading, grinding and flexible compacting, polishing, construction seam cutting, curing, finished product curing and upper structure construction. According to the one-step forming method, a structural floor is used as a base layer, a diamond sand floor surface layer and a structure are subjected to one-step pouring forming, the common quality problem that the floor surface layer is prone to forming hollow protrusions due to secondary pouring is avoided, meanwhile, one concrete base layer is reduced, and cost is greatly reduced. The floor is fully covered with recyclable materials such as plastic films and templates so that an upper main structure can continue to be conveniently constructed.

The invention relates to an all-powder ultrathin diamond saw blade, which comprises the following matrix elements in percentage by mass: 45 to 65 percent of Cu, 8 to 12 percent of Sn, 8 to 12 percent of Co, 2 to 4 percent of Ni, 2 to 4 percent of Ag, 0.3 to 0.5 percent of S, 0.2 to 0.3 percent of P, 0.2 to 0.3 percent of C, and the balance of Fe. Based on 100 percent of concentration of standard 0.88g/cm<3> diamond, the diamond concentration is 16 to 28 percent. By the technical scheme, the all-powder ultrathin diamond saw blade has the advantages that: 1, there is no matrix, and matrix waste is greatly reduced; 2, the thickness can reach 0.3 to 0.6mm; and 3, the height of a tool bit is 30 percent of the outer diameter of the saw blade, the service life of the product is long, the cutting efficiency is high, and a sawn joint is small.

The invention relates to a numerical-control band saw machine for sawing American cork wood, and the numerical-control band saw machine comprises a saw machine, a saw frame, a vehicle body, a linear guideway pair, a ball screw, a variable frequency motor, a servo motor, an air pump, a numerical control operating desk, an electric control cabinet and the like; the sawing part of the saw machine comprises a band saw driving wheel, a band saw driven wheel, a tensioning mechanism, a tray, a housing and the like; the tension of a cutter is adjusted by virtue of an adjusting handwheel, the exposed teeth of the cutter are adjusted by a saw blade exposed tooth adjusting handwheel; the wood is clamped by a pneumatic device, the clamping force is adjusted by a regulation valve, the clamping force is realized by an operation handle, 01 gear is a wood clamping gear, N is a neutral gear, and 02 gear is a wood loosening gear; the linear guideway pair and the variable frequency motor are adopted for a walking part, the sawing precision is stable and reliable, the servo motor is adopted for a sawing part, the ball screw is lifted, an imported special cutter is adopted, and the numerical-control band saw machine is steady in operation, small in sawing kerf and high in yield.

The invention discloses a food slicing device. the food slicing device comprises a frame, a slicing mechanism and a conveying mechanism, wherein the blade mechanism and the conveying mechanism are arranged on the frame, and the conveying mechanism is used for conveying foods; the slicing mechanism comprises blades, a knife rest and a driving mechanism, the driving mechanism is used for driving the knife rest to move back and forth in a direction which is intersected with the conveying direction of the conveying mechanism, and the knife rest is provided with a window for foods to pass through; the blades are arranged on the window at intervals, one ends of the blades are fixedly connected to the upper edge of the window, and the other ends of the blades are fixedly connected to the lower edge of the window; the driving mechanism is connected with the knife rest in a driving way, the conveying mechanism is located below the blades, and the conveying direction of the conveying mechanism is parallel to the blade orientations of the blades. According to the food slicing mechanism provided by the invention, foods can be cut with smaller kerfs, the excessive residues of a food detergent can be prevented, and the balanced taste of the sliced foods can be ensured.

The invention relates to a substrate-free full powder ultra-thin diamond saw blade. A matrix is prepared by powder and diamond through a powder metallurgy method. The powder includes copper powder which is 35-55% of the total mass, cobalt powder which is 8-12% of the total mass, tin power which is 8-12% of the total mass, nickle powder which is 2-4% of the total mass, titanium powder which is 1-3%of the total mass, chromium powder which is 1-3% of the total mass, molybdenum powder which is 1-3% of the total mass, iron powder which is 5-20% of the total mass, tungsten powder which is 1-10% ofthe total mass, silver powder which is 0.5-1.5% of the total mass, silicon powder which is 0.3-0.5% of the total mass, phosphorus powder which is 0.2-0.3% of the total mass, and carbon power which is0.2-0.3% of the total mass. The volume concentration of the diamond is 2%-60% and the particle size is 0.04-0.25 mm. Because the technical scheme is used in the invention, the substrate-free full powder ultra-thin diamond saw blade has the following advantages: firstly, the substrate-free full powder ultra-thin diamond saw blade has no a substrate, which greatly reduces the waste of the substrate;secondly, the thickness can reach 0.3-1.0 mm; and thirdly, the height of a cutter head reaches 45% of the outer diameter of the saw blade, and so the service life of the product is long, the cuttingefficiency is high, the saw kerf is small, and the energy and the resources can be saved.

The invention discloses a bimetal road grinding band saw blade. The bimetal road grinding band saw blade comprises a saw blade body and a plurality of groups of saw tooth groups arranged on the saw blade body. Each group of saw tooth groups comprises at least one first saw tooth, and the blade end width of each first saw tooth is greater than the width of the saw blade body in the thickness direction of the saw blade, chamfers are arranged on the two sides, in the width direction, of the blade end of each first saw tooth, and at least one side surface of each first saw tooth is an acute-angledinclined surface. The saw blade has a smooth and level saw cutting surface, a small saw kerf and a high advance, the saw cutting margin can be greatly reduced, the saw blade tooth tip wears slowly, and the service life is long.

The invention relates to the field of grinding wheel manufacturing, in particular to a grinding wheel segment manufacturing method and a cutting clamp for implementing the same. The grinding wheel segment manufacturing method comprises the following steps that (1) a lengthened grinding material block is loaded into the corresponding cutting clamp, the cutting clamp is provided with at least one lengthened grinding material block clamping position, the two opposite sides of the clamping position are provided with a front face cutting receding groove and a back face cutting receding groove respectively, and the front face cutting receding groove and the back face cutting receding groove which correspond to each other are arranged oppositely; (2) a laser cutting machine is used for cutting the lengthened grinding material block from the front face and the back face of the corresponding clamping position. The grinding wheel segment manufacturing method solves the problems that grinding wheel segment is low in manufacturing efficiency, materials are wasted, and the quality of a grinding wheel segment is poor.