45results about How to "Reduce cutting area" patented technology

The invention provides a method for manufacturing a cutting wire and the cutting wire, and the method is characterized by taking a steel wire rope as the substrate and consolidating the abrasive material on the steel wire rope substrate by using metal binder or resinoid bond in electroplating manner. The abrasive material is normal or super hard abrasive material of different grain sizes. The processing technology of the cutting wire is reasonable, and the manufactured cutting wire has wide cutting range, good cutting quality and little pollution. The invention also provides a tire cutting device, comprising a lathe bed, a sliding working table which is provided with a fixture, an annular cutting device, driving wheels, driven wheels, a strainer for the annular cutting device and a cutting motor. The device is characterized in that the annular cutting device is an annular cutting wire which takes the steel wire rope as the substrate and consolidates the abrasive material on the surface. The driving wheels and the driven wheels have two sets and drive the two cutting wires to rotate synchronously, thus forming the double-cut cutting. The device has the advantages of high cutting efficiency, good cutting quality and little pollution.

The invention relates to the technical field of bridge removing engineering, and particularly relates to an integral lowering and removing system of span box girders based on bridge deck support and a construction method of the integral lowering and removing system. The system comprises piers which are used for lowering the two ends of a box girder, and two sets of cantilever reaction systems which are symmetrically arranged on the two ends of the lowered box girder. Each cantilever reaction system comprises two main outriggers and a hoisting cable. The ends of the two main outriggers are anchored on the corresponding pier, and the other ends are spaced by a certain distance; the hoisting cable is slidingly connected to the end parts of the main outriggers, one end of the hoisting cable is connected with a lowering power system, and the other end of the hoisting cable is connected with a hoisting device which is used for hoisting the lowered box girder. The lowering power system is installed on the main outriggers. According to the integral lowering and removing system, the box girders are lifted and lowered through continuous jacks of which hoisting capacities are large, so that the cutting area of concrete is greatly reduced, and removing cost is effectively reduced; the invention has the characteristics such as good safety, controllability, operability and application prospect, and is not only suitable for removing the straight girder bridges, but also suitable for removing the curved bridges.

Cutting insert for tools for cutting workpieces or objects, including at least one cutting edge, at least one lateral surface, and at least one cutting face comprising a fine structure having convex and concave areas. Additionally, the convex and concave areas, have a depth T and are respectively spaced apart from one another by a spacing A greater than 0.1 mm and less than 1.0 mm.

A cutter comprises a cutter handle, a cutter neck and a cutter head. The cutter neck interconnects the cutter handle and the cutter head. The cutter head comprises a connecting side surface adjoining the cutter neck, an outer annular surface, a distal end surface opposite to the connecting side surface and away from the cutter neck, and at least one cutting edge formed on the outer annular surface extending from the junction of the connecting side surface and the cutter neck toward the distal end surface, and at least one cutting trough formed on the cutter head adjacent to the at least one cutting edge extending from the junction of the connecting side surface and the cutter neck toward the distal end surface.

The invention provides a shielding apparatus, a processing method and a device, and a semiconductor device. The shielding apparatus comprises a shell, the shell is provided with a plurality of through holes, and a sidewall curve of the shell is parallel to a magnetic line of force in a magnetic field where the shell is located. The technical scheme of the invention can reduce the cutting area of the magnetic field and the shielding apparatus, thereby reducing the vortex in the shielding apparatus, and reducing, even eliminating the conversion from magnetic field energy to heat, so that the loss of the magnetic field energy can be reduced, and the problem of higher temperature of the shielding apparatus also can be solved completely.

The invention provides an electric osteotome which comprises a blade and a handle, the blade is arranged on the handle and comprises a endless chain and a guide board, the endless chain is arranged in the periphery of the guide board and consists of cutting edges and chain sheets which are connected with adjacent cutting edges, and an electric motor is arranged inside the handle. The electric motor drives the endless chain of the blade to work around the periphery of the guide board. The electric osteotome has the advantages of flexible cutting direction transition, small cutting area, small volume and convenient usage.

The invention provides a secondary rock breaking drill bit for assisting pressurizing flow back through a spiral blade. The secondary rock breaking drill bit comprises a drill bit body, the blade anda cone; the blade is arranged at the top end of the drill bit body, and the blade and the drill bit body are of an integrated structure; and a gauge protection part is arranged on the outer wall of the blade. Through improvement for the rock breaking drill bit, primary cutting is conducted at the bottom of the drill bit to form primary rock debris, the rock debris returns to the cone under carrying flow back of a well-drilling fluid, the cone can conduct secondary breaking, the spiral blade slides in the longitudinal direction to be in surface contact with the well wall, a surface contact modeof the spiral blade is far greater than a line contact mode of a traditional straight blade, longitudinal vibration in the well-drilling process can be reduced, the rock debris generated by cutting of the drill bit flows back upwards under the action of vertical component force of the spiral face, fluid carrying the rock debris generates reactive force on the spiral blade surface, the drill bit can be pressurized, and thus the problems and deficiencies proposed in the background technology are effectively solved and overcome.

The invention relates to a method for repairing a circular saw web of a flying sawing machine. The method sequentially comprises the following technical processes of shaping the saw web, repairing broken teeth, shaping the tooth shape of a tooth grinding machine, quenching at high frequency and tempering at low temperature, so that the shortcoming of pure mechanical repairing of the tooth grinding machine is overcome; and saw teeth of the saw web have the original performance, and the service life of the saw web is not shortened; theoretically, the saw web can be repaired for over hundred times; the cutting area is reduced by about 0.1 to 0.5 percent every time when the saw web is repaired; therefore, the cost of the saw web during production of cold-formed sectional steel is reduced greatly; and the production cost is reduced.

The invention provides a tunnel crack detecting and repairing device. The tunnel crack detecting and repairing device is arranged on a crack. The tunnel crack detecting and repairing device a pre-detection mechanism and a repairing and polishing mechanism; the pre-detection mechanism and the repairing and polishing mechanism both correspond to a crack; and the pre-detection mechanism comprises a detection assembly and a driving assembly. The detection assembly is connected with the driving assembly, and the detection assembly corresponds to the crack. The detection assembly comprises an insertion plate, a plurality of baffles and insertion rods, and the insertion plate is connected with the driving assembly. According to the tunnel crack detecting and repairing device, the pre-detection mechanism and the repairing and polishing mechanism are matched with each other. Therefore, the device has the function of detecting the depth of the crack. Personnel can determine, through the pre-detection mechanism, places where cracks need to be cut and repaired and places which only need to be polished, so that the cutting area is reduced. The wall integrity is ensured to the greatest extent. Meanwhile, the repairing mode is more scientific and reasonable.

The invention relates to a mechanical loosening device, in particular to a self-adjusting loosening device which comprises a loosening cabin, a loosening drum, an air inlet pipe, and a rotating power element which drives the loosening drum to rotate, wherein the loosening cabin of a truncated cone shape, includes a feed hopper arranged at the top end of the loosening cabin and a discharge port installed on the right wall of the loosening cabin; the air inlet pipe is communicated with the left wall of the loosening cabin, and the loosening drum is rotatably connected in the loosening cabin; the loosening drum includes a fast cutting mechanism, a loosening mechanism, a rotating shaft and an inner blocking cylinder which is arranged in the loosening drum; a drum wall of the loosening drum and the inner blocking cylinder are both fixed on the rotating shaft which is rotatably connected on the loosening cabin and connected with the rotating power element, and the drum wall is divided into a feed part of a coniform shape and a discharge part of a truncated cone shape. In order to solve the problem of winding fibers on the loosening drum, the self-adjusting loosening device aims to provide the self-adjusting loosening device capable of avoiding fiber winding.

The invention discloses a novel method for manufacturing short shell ring flange sections of an offshore wind power tower barrel. The method comprises the steps of steel plate cutting, groove processing, steel plate edge rolling and assembling, longitudinal seam welding, flange assembling, circular seam welding and integral cutting, and during steel plate cutting, a left gap and a right gap are respectively and horizontally cut at the middle position at an interval, broken bridge nodes are reserved at the two ends of each gap, and during integral cutting, the broken bridge nodes are cut off along the gaps, so that two short shell ring flange sections are separately manufactured. The manufacturing period of the short shell ring flange section is greatly shortened, the working efficiency is improved, and meanwhile the cutting accuracy is guaranteed.

The invention discloses a dust collecting device. The dust collecting device comprises a shell, two sliding grooves are formed in one side of the shell, cutting blades for cutting raw stone are arranged in the two sliding grooves respectively, one side of each cutting blade is connected with an angle adjusting part, the angle adjusting parts are connected into the shell, the angle adjusting partsare connected with driving parts in an ejecting mode, and the driving parts are connected with the shell; the top of the shell is connected with a collecting part for collecting raw stone dust, and the two ends of the collecting part are located at the tops of two cutting blades. According to the dust collecting device, the arranged shell is placed at a jade position to be cut, the cutting angle between the two cutting blades is adjusted through the arranged angle adjusting parts, the two cutting blades are driven at the same time through the driving parts; the two cutting blades can be conveniently driven to cut jade raw stone, the collecting part is started to adsorb the jade dust cut off from the tops of the two cutting blades, the jade dust is absorbed in time, and the situation that the jade dust adheres to the cutting blades is reduced.

The invention provides a nut cover die machining jig and a nut cover die machining machine tool with the nut cover die machining jig, and relates to the technical field of nut machining die manufacturing. The nut cover die machining jig comprises a clamp base and a clamp cover detachably arranged on the clamp base. The clamp base is provided with a first clamping surface, and the first clamping surface is the inner end face of a first hole in the surface of the clamp base. The clamp cover is provided with a second clamping surface, and the first clamping surface and the second clamping surfaceare used for clamping a nut cover die. The nut cover die machining jig and the nut cover die machining machine tool can solve the technical problem that in the prior art, the nut cover sleeve machining side face angle error exists.

The invention discloses a coring shield mechanism of a tunnel boring machine. The coring shield mechanism comprises a pushing device, a converting device and a rotating fixed base, wherein the converting device is matched with the pushing device, the rotating fixed base is arranged on one side of the converting device in a matched mode to be driven, one side of the rotating fixed base is further connected with supporting legs, and a cutter head is connected to one end of each supporting leg. The coring shield mechanism of the tunnel boring machine serves as a cutting mechanism of the tunnel boring machine, and the coring shield mechanism not only is high in efficiency, safe and reliable, but also prolongs service life of a cutting component and reduces production cost.

The invention discloses a reverse circulation impactor and system. The reverse circulation impactor comprises a drill rod component and a coring component. The drill rod component and the coring component are integrally formed, and the drill rod component is arranged above the coring component; the coring component comprises a coring impactor; the bottom of the coring impactor cylinder is in a circular ring shape, and multiple positive circulation sub down-the-hole hammers are arranged on the circular ring at intervals; the drill rod component is used for providing a high-pressure air channel for the coring impactor. The device and the system are simple in structure, safe, effective, reliable and easy and convenient to operate, the drilling efficiency of the large-diameter impactor can be effectively improved, and the cost consumed by a drilling tool is reduced.

Reliable resin packages and semiconductor light-emitting devices using the resin package can include a printed circuit board including a resin layer, metallic layers formed on a top surface of the resin layer and underneath a bottom surface of the resin layer and a frame arranged from a top surface of the printed circuit board toward a bottom surface of the printed circuit board. The semiconductor light-emitting device using the resin package can prevent the printed circuit board from warping toward the frame when forming the frame incorporating the printed circuit board because a total of each thickness of the metallic layers formed on the top surface and underneath the bottom surface of the resin layer can be thicker than a thickness of the resin layer. Thus, the present invention can provide the semiconductor light-emitting devices having high reliability, which can be used as a light source for vehicle lamps, etc.

The embodiment of the invention provides a display panel and display equipment. The display panel comprises a substrate, a packaging layer and a barrier structure, the packaging layer comprises an inorganic packaging layer, the inorganic packaging layer is arranged on one side of the substrate, and the inorganic packaging layer is a continuous film layer; the barrier structure comprises a stress release structure, the stress release structure is arranged on the side, close to or away from the substrate, of the inorganic packaging layer, the elastic modulus of the stress release structure is smaller than that of the inorganic packaging layer, and the stress release structure is used for releasing the cutting stress of the inorganic packaging layer. The barrier structure is arranged in the peripheral area, and the elastic modulus of the stress release structure in the barrier structure is smaller than the elastic modulus of the inorganic packaging layer, so that when the inorganic packaging layer is cut, the cutting stress is released by the stress release structure, cracks of the inorganic packaging layer can be reduced or eliminated, and the yield of the packaging layer is improved. Therefore, the packaging effect of the display area can be ensured, and the packaging reliability and the cutting yield of the display panel can be improved.

The invention discloses an efficient and consumption-reducing stone cutting machine which comprises a stone conveying mechanism and a stone cutting mechanism, the stone cutting mechanism is arranged above the stone conveying mechanism, the stone cutting mechanism comprises a rack and a saw belt type cutting device arranged on the rack, and the saw belt type cutting device drives a saw belt to cut stone. Compared with the prior art, the method has the beneficial effects that the material loss can be reduced, the cost can be reduced, the quarry stone can be cut into more stone plates, and the yield and the production benefit can be improved. The saw band is in a tangent state with the stone during cutting, and the cutting point of the saw band is always one point, so that the cutting area of the saw band is reduced, the cutting pressure and friction force of the cutting point are increased, the saw band can cut the stone more powerfully, the cutting efficiency is improved, and the cutting time is shortened.