897 results about "Remanufacturing" patented technology

A simple method for remanufacturing a process cartridge which includes removing a first cover, removing a second cover, separating frames, removing a fixing pin, removing a developing roller, refilling developer, positioning provisionally a supporting frame to a developing frame, attaching the developing roller, attaching the supporting frame, connecting a first frame and connecting a second frame.

The invention discloses a metal part remanufacturing method adopting stress control and 3D printing. The metal part remanufacturing method comprises steps as follows: firstly, a body sample and a cladding sample of a metal part are prepared, and laser parameters required by the same residual compressive stress are acquired through laser shock; secondly, a to-be-repaired metal part is preprocessed, a repairing area and a repairing allowance of the part are determined with an image recognition method; the metal part is subjected to cladding repair layer by layer by the aid of a laser 3D printer, and the size of a repaired part reaches the originally designed size of the part; finally, residual tensile stress is eliminated through the laser shock, and then a residual compressive stress layer is formed on the working surface of the metal part with a laser shock processing method. According to the metal part remanufacturing method, the part repairing is performed by adopting laser 3D printing, the overall deformation of the part is not large, further, the repairing size precision is easy to control, and follow-up processing is not required; the repaired parts acquire equal overall strength, a value of residual compressive stress of a part surface strengthening layer after the laser shock processing keeps balance, and the service life of the remanufactured part is prolonged.

The invention provides alloy powder used for laser remanufacturing of FV520B martensitic stainless steel parts and a preparation method. The chemical components of the alloy powder include, by weight percentage, 0.01-0.3% of C, 12-17% of Cr, 3-7% of Ni, 0.4-2% of Mo, 0.1-2% of Mn, 0.15-0.55% of Nb, 0-3% of Cu, 0.05-2% of Si, 0-1.6% of B and the balance Fe. The preparation method of the alloy powder is a vacuum melting-high pressure gas atomization method. The alloy powder can have the density and the thermal expansion coefficient which are similar to those of FV520B materials when precipitation hardening elements, deoxygenation slag forming elements and elements used for lowering the martensite phase transformation point are added and the weight percent content of all the elements are regulated; the residual stress level is lowered through the martensite phase transformation accompanying effect; and therefore the problems of cracks, deformation and the like are greatly relieved, and the forming property, the anti-cracking property and the process stability are achieved and improved when the FV520B parts are subjected to laser remanufacturing through the alloy powder.

An assembling method for a process cartridge the assembling method includes a step of preparing a drum unit supporting a electrophotographic photosensitive drum; a step of preparing a developing unit supporting a developing roller for developing a electrostatic latent image formed on the electrophotographic photosensitive drum a developer supplying roller for supplying a developer to the developing roller and a developer accommodating portion having a developer supply opening; a unit coupling process of coupling the drum unit and the developing unit with each other; a first-end developing-device spacing member mounting step after the unit coupling process of engaging with a opening provided at a first end portion of the drum unit a first-end developing-device spacing member provided rotatably about a shaft at a first end portion of the developing unit to regulate rotation of the developing unit relative to the drum unit; and a second-end developing-device spacing member mounting step of engaging, with a projection provided at a second end portion of the drum unit, a second-end developing-device spacing member provided rotatably about a shaft at a second end portion of the developing unit to regulate rotation of the developing unit relative to the drum unit.

A remanufacturing method for a developer supply container detachably mountable to a main assembly of an image forming apparatus, the developer supply container including a frame, a developer accommodating portion for accommodating a developer to be used by a developing device of the image forming apparatus, a developer filling opening for filling the developer into the developer accommodating portion, a capping member for closing the developer filling opening, and a cap covering member covering the capping member, the cap covering member being fixed by welding to the frame, the remanufacturing method including a cap covering member dismounting step of dismounting the cap covering member from the frame by separating cap covering member from the frame at a welded portion; a capping member dismounting step of dismounting the capping member to open the developer filling opening; a developer filling step of filling the developer with the developer filling opening; a capping member mounting step of closing the developer filling opening by a capping member; a cap covering member mounting step of mounting the cap covering member to the frame.

A process cartridge remanufacturing method including: detaching, at one longitudinal end of a process cartridge, a first cover member from a drum frame and a developing frame; detaching, at the other longitudinal end, a second cover member from the drum frame and the developing frame; detaching a drum supporting member from the drum frame; separating the developing frame and the drum frame; detaching a developing roller from the developing frame; filling a developer containing portion with the developer from a developer supply port provided on the developing frame; mounting a developing roller to a developing frame; mounting, at the one end, a photosensitive drum to a drum frame; securing the drum frame and the developing frame in position at the one end by a first cover member; securing the drum frame and the developing frame in position at the other end by a second cover member; temporarily mounting a drum supporting member to support the photosensitive drum at the other end; and mounting the drum supporting member and the second cover member to the drum frame by mounting a fixation member to a mounting hole provided in the second cover member by using the screw.

A remanufacturing method includes dismounting, from one end of a drum frame, a supporting member while rotatably supporting one end of a drum and a developing device frame; separating the two frames; dismounting the drum; mounting one end of a fresh drum to the other end of the drum frame; a refilling developer into a developer accommodating portion of the separated developing device frame; and swingably connecting the developing device frame and the drum frame by mounting the supporting member to one end of the drum frame, while rotatably supporting, by the supporting member, the one end of the drum of the drum frame to which the fresh drum has been mounted and swingably supporting the one end of the developing device frame to the developer accommodating portion of which the developer has been refilled, by the drum frame.

The invention discloses a deposition forming manufacturing method of parts and molds, and belongs to the field of non-mold growing manufacturing and remanufacturing. The method comprises the following steps that S1, the three-dimensional CAD model of a workpiece to be formed is subjected to hierarchical slicing; S2, the CNC codes of all hierarchical slices are acquired; S3, deposition forming is conducted layer by layer according to the CNC codes of all the hierarchical slices, the fine portions of the workpiece are formed by laser, and one or more technologies in electric arc welding, electron beam welding, electroslag welding and submerged-arc welding is or are adopted to form the thick wall and the non-fine portions of the workpiece; or in the S3, a heat source which is compounded by laser beams and gas protection electric arcs or a heat source which is compounded by the laser beams and vacuum protection electronic beams is adopted for forming the thin wall and the fine portions of the workpiece, and the gas protection electric arcs or the vacuum protection electron beams are shut down. According to the deposition forming manufacturing method, direct deposition forming can be achieved to obtain parts and molds which are stable in structure property and high in manufacturing precision and are provided with thin walls or fine portions.

The invention discloses a method and a device for remanufacturing a sheet metal welding piece by utilizing laser and relates to the field of non-traditional machining. The method comprises the following steps of: closing cracks by employing continuous laser re-molten cracks and neighboring area; then heating the surface of the joint of the sheet welding piece in a dynamic strain ageing temperature area; and performing laser shock processing on the surface of the joint of the sheet welding piece by utilizing a double-sided laser impact method. According to the device, the sheet welding piece can be compositely strengthened and remanufactured, the cracks on the surface of the welding line are closed, the air holes inside the welding line are eliminated, the tensile strength of the joint of the sheet welding piece is improved, and the service life of the sheet welding piece is prolonged.

The invention provides a really flexible clamp device capable of clamping parts with any complex shapes and sizes. The flexible clamp device provided by the invention comprises a base, a phase-change material cavity, a phase-change material, a locating body, a clamping body and the like. The phase-change material cavity is connected to the base through a bolt; the locating body is placed on the base through a numerical control locating machine and adsorbed on the base through a bottom permanent magnet; the clamping body is placed on the base through the numerical control locating machine and adsorbed on the base through the bottom permanent magnet; and phase-change material is cast so that the locating body, the clamping body, the phase-change material cavity and the base are fixedly connected to form a clamp. The length of the locating body can be continuously adjusted, the height of the clamping body can be continuously adjusted, and positions of the locating body and the clamping body can be arranged randomly, so that clamping the parts with any complex shapes and sizes is realized. The clamp is simple in part shape, low in manufacturing precision requirement and low in clamp manufacturing cost; and the phase-change material can be repeatedly used so as to be easy for remanufacturing and cyclic utilization.

The invention belongs to the field of recycling of waste plastics of scraped automobiles, and relates to a method for recycling thermoplastic polypropylene plastic parts of a scraped automobile. The method comprises the following steps of: manually disassembling nonmetallic inner and outer ornaments and structural parts of the scraped automobile, manually sorting thermosetting plastic parts and thermoplastic plastic parts, further manually sorting the thermoplastic polypropylene plastic parts, manually disassembling and separating metallic linkage parts, circuits and the like of the sorted thermoplastic polypropylene plastic parts, performing two-stage crushing on the polypropylene plastic parts, performing ferromagnetic sorting on two crushed materials respectively to separate out metallic scraps, separating out fine metallic scraps and metallic paint by using a roller direct-current high-voltage corona and electrostatic composite electric field sorter, performing sampling performance detection on the cleaned and dried materials, adding a modifier according to the detection results and the using requirements, granulating, and manufacturing automobile plastic members by using the materials. By using the method, the plastic recycling problem of the scraped automobile is solved, broken plastic resources of the scraped automobile are recycled, environmental pollution is avoided, the energy consumption is low, and the additional value is high.

The invention provides a method for repairing and remanufacturing the surface of a piston rod of a hydraulic cylinder or the outer surface of an intermediate cylinder for coal mines. Aiming at remanufacturing after the surface of the piston rod of the hydraulic cylinder or the outer surface of the intermediate cylinder for the coal mines is damaged and fails, the long-term practice is combined, a metal wire adopting the specific metal powder proportion is creatively designed to serve as a powder core wire, and namely the metal wire is formed by wrapping the metal powder with Cr, Ni and Fe as the main ingredients through a stainless steel foil layer; based on the arc thermal spraying process method, the surface is repaired and remanufactured creatively, and on the premise that the corrosion resistance and the hardness of the repaired layer of the surface are equal to those of the surface treated through the surface laser cladding technology, consideration is given to the good economic applicability and the good practical production efficiency; an existing electroplating technology can be completely replaced, and the method has the wide application and popularization prospects in repairing of the piston rod of the hydraulic support oil cylinder and the intermediate cylinder for the coal mines.

The invention discloses a self-shielded flux-cored wire for extrusion roller remanufacturing. A mild-carbon steel strip is employed as the skin of the self-shielded flux-cored wire. The component of the flux comprises, by mass, 20%-40% of high carbon ferrochrome, 20%-40% of chromium carbide, 5%-20% of ferromolybdenum, 1%-10% of ferrovanadium, 1%-5% of ferroniobium, 1%-5% of graphite, 1%-5% of aluminum-magnesium, 1%-4% of electrolytic manganese, 1%-4% of ferrosilicon and 1%-4% of ferroboron, and the weight ratio is 44%-52%. The hardness of the surfacing alloy manufactured by the use of the self-shielded flux-cored wire can reach HRC60, and the surfacing alloy is fine and uniform in crack, is high in wear resistance, is high in shock resistance, and is suitable for being employed as a working layer in an extrusion roller remanufacturing process in a cement plant.

The invention relates to an electro-magnetism weld deposit renovation and surface modification method for waste and old dies, comprising following steps: cleaning and preheating the waste and old dies, performing weld deposit on the portion of the waste and old dies where renovation and surface modification are needed by using an arc source weld deposit method adding impulse shooting flow electrical arc controlled by an externally-applied magnetic field; treating the dies to achieve a needed technique requirement. The invented method breaks off the two limits contradictory with each other which are high melt covering ratio and low dilution ratio of weld deposit, realizes effective cooperativeness and reasonable unification of weld deposit quality and efficiency, reduces cost of weld deposit and dies, and improves competitive power; resolves the contradictory problem of high hardness and low flexility in waste and old dies renovation field; protects electro-magnetism weld deposit novel heat source by using impulse revolving shooting flow gas innovationally, renovates the waste and old dies by utilizing characteristics of high efficiency, high quality, distortion and controllable temperature of the electrical arc heat source. The invention provides the related device also.

The invention discloses a titanium and titanium alloy component arc welding adding material remanufacturing method. In the arc welding adding material remanufacturing process, the pulse MIG welding technology is adopted, the mode of metal transfer is spray transfer, a double-microdomain adjusting mode is adopted in gas protection, the appearance structure is a bell jar type or a ship type, and a front stretching and back extending mode is adopted in protection gas supplying and non-supplying; the inclination angle theta and the inclination angle omega of opposite welding lines of a welding gun are controlled; argon or argon-helium or helium-argon or helium is adopted as the double-microdomain protection gas; an arc welding robot is adopted to control the moving speed and posture of the welding gun. The titanium and titanium alloy component arc welding adding material remanufacturing method solves the problems of gas protection, technology optimization and quality control in the titanium and titanium alloy component MIG arc welding adding material remanufacturing, adding material remanufacturing of abraded or broken titanium and titanium alloy components is achieved, the gas protection structure is simple, easy to use and good in protection effect, a sealing gas chamber is not needed, more than 40 percent of materials can be saved, the thermal input can be reduced by more than 20 percent, and the titanium and titanium alloy component arc welding adding material remanufacturing quality is improved.