78results about How to "Shorten the repair cycle" patented technology

The invention discloses a repairing method of a master cylinder plunger piston of a radial forging machine; in the invention, two false shafts are manufactured and are connected to two ends of the master cylinder plunger piston as the standard for processing the master cylinder plunger piston and a thin-wall steel sleeve; the thin-wall steel sleeve adopts a 38CrMoAl forging piece, and heat treatment tempering and multichannel heat treatment stress elimination are carried out to the thin-wall steel sleeve, and nitriding treatment is carried out to the surface of the thin-wall steel sleeve to improve the hardness, after cylinder type fixing glue is coated on the surface of the master cylinder plunger piston, the thin-wall steel sleeve is embedded and sheathed on the master cylinder plunger piston after heat treatment is carried out, and the thin-wall steel sleeve is grounded into design size; by adopting the method, the damaged master cylinder plunger piston can be repaired, and repairing can be carried out repeatedly, the effectiveness of the master cylinder plunger piston is restored, the maintaining cost and repairing period can be greatly reduced and the normal operation of the production equipment can be ensured.

The invention discloses a non-distortion repairing method for micro-damage of casting alloy part. In the method, a revolving solid anode bar made from CoCrW alloy is clamped on a rotary collet of an electric discharge machine, and spare parts to be repaired are connected with the cathode of the electric discharge machine; the power of the electric discharge machine is adjusted between 1000W and 1800W, and the frequency is adjusted into low frequency; shield argon is adjusted between 8L / min and 35L / min, and argon in an argon bottle is guided to a coating part by a copper pipe; a dipped finish of the copper pipe aims damage parts of the spare parts; after the power is turned on, the rotary cathode bar and the damage surfaces of the spare parts are contacted with degrees between 55 degrees and 75 degrees, and reciprocating coating is carried out at repairing parts. The method uses the characters of high transient temperature and short endurance time of electric spark micro-arc aggradation to reduce heat input in the repairing of spare parts, thereby avoiding the defects of great heat input amount of argon-arc welding, long acting time, much deformation of spare parts and easy generation of cracks in the prior art. The method overcomes the problems of border effect of plasma spraying, great investment cost of devices, low bonding strength of coating, easy plunger separation and chip off-falling for hot spraying in the prior art.

The invention discloses a method for measuring degree of a turn-to-turn short-circuit fault of a rotor and accurately positioning the same. The method is characterized in that a safe current-constant DC voltage is acted on a static slip ring or axial lead, the voltages of different coils are measured, the voltage or voltage different of different corresponding portions of a two-pole winding of a rotor without turn-to-turn short-circuit fault is equivalent, the number of the coil in which short circuit occurs can be determined preliminarily, the voltage between every two turns is then measured, and the position of the short circuit point and the short circuit degree are calculated according to the voltage value between the short-circuit turns. According to the method of the invention, the Kirchhoff's current law is used to search the turn-to-turn short-circuit fault point of the rotor, the concrete position of the fault point can be determined before the rotor is dismounted for repair, subsequent work scheme is then made in a scientific, reasonable and targeted manner according to the position of the fault point, the maintenance cost and period are greatly reduced, labor, material and financial cost is greatly reduced, and huge economic loss is avoided.

According to the in-situ circulation well repairing system and method, a well pipe is composed of a solid pipe, an upper-section screen pipe and a lower-section screen pipe, the upper-section screen pipe is located at the underground water level, and the lower-section screen pipe is located at the lower edge of the underground water pollution range; the aeration system comprises an aeration pipe, the air outlet end of the aeration pipe is provided with an aeration head, and the aeration head is arranged in the lower-section screen pipe area; the collecting and extracting system comprises an extracting pipe, a foam collecting head is installed at the collecting end of the extracting pipe, and the foam collecting head is arranged above the water surface of underground water in the well; the separation treatment system comprises a gas-liquid separator, a gas treatment device and a liquid phase collection tank, an inlet of the gas-liquid separator is connected with the discharge end of the extraction pipe, an exhaust port is connected with the gas treatment device, and a liquid discharge port is connected with the liquid phase collection tank. The PFAS recovery rate is increased through aeration stripping in combination with the underground water circulating well, the PFAS polluted underground water remediation cost is reduced, and the remediation period is shortened.

The invention discloses a judging and regulating method for a blade rolling process, belonging to the technical field of aviation engine blade rolling. The method is rapid, accurate and capable of greatly shortening the regulating time, shortening the repair period of a rolling die, reducing the consumption of die repairing test blocks and manpower and ensuring that a blade meets the requirement of a design drawing to the maximum extent. The judging and regulating method comprises the following steps of firstly, judging and regulating a seaming position; secondly, judging profile offsetting and twisting; thirdly, judging and regulating die profile air inlet and exhaust side direction translation; fourthly, judging and regulating blade rotation around the vertical direction; fifthly, judging and regulating a blade along the vertical direction; sixthly, judging and regulating blade rotation around a horizontal shaft; and seventhly, judging and regulating blade rotation around a central line of a blade body.

The present invention discloses a scratched mask repair apparatus and a method. The apparatus comprises a bracket device, a defect detection device and a repair module, wherein the bracket device is arranged in a photolithography machine chamber, the defect detection device and the repair module are arranged on the bracket device, and the repair module comprises a plurality of repair refills with different sizes. According to the present invention, the bracket device of the scratched mask repair apparatus is directly arranged in the photolithography machine chamber, and can timely and rapidly perform repair in the photolithography machine during mask scratching without influence on productivity of the photolithography machine, such that the function of the photolithography machine is complete, the automation degree of the photolithography machine is high, the mask repair can be directly completed in the photolithography machine, and the internal space of the photolithography machine is completely utilized so as to substantially shorten the repair period and provide characteristics of simpleness, rapidness, low cost, and no influence on productivity.

The invention relates to a fluid transportation and reaction integrated repairing method for organic-inorganic composite contaminated soil. The method comprises the following steps: processing the organic-inorganic composite contaminated soil in a batching system to obtain a slurry, and inputting the obtained soil slurry into a pipeline reaction system by a screw pump; arranging a plurality of bypasses at different positions of a main pipeline in the pipeline reaction system; injecting reagents into the main pipeline through the dosing bypasses in the flowing process of the soil slurry, and allowing the reagents to be mixed with the soil slurry flowing in the pipeline and be reacted with compound contaminants in the soil slurry in order to degrade or solidify the contaminants and achieve the purpose of repairing soil; and allowing the slurry discharged from the pipeline to enter a solid-liquid separation system, and carrying out solid-liquid separation by using a solid-liquid separation device, wherein the separated soil is air-dried, and then is backfilled or granulated, and the separated liquid is treated and then is recycled to the batching system for reuse. The method has the advantages of simplicity in operation, low cost, high efficiency and energy saving.

A follow-up machining apparatus for greater mechanical axle (workpiece) is composed of a locating mechanism using said great mechanical axle as reference, a ring-type tool carriage assemblage fixed to said locating mechanism and revolving around said axle, and a driver unit. After said follow-up machining apparatus is fixed to said great axle, the axis is machined by the cutting tool moving around it.

The invention relates to a testing system for aiming at an 80C186 architecture interface board. The testing system comprises an FPGA least system circuit, a communication interface circuit, an Arinc429 signal transmitting circuit and a sequential logic control circuit. The FPGA least system is mainly composed of seven small parts, namely a clock input circuit, a resetting input circuit, a JTAG interface circuit, a program configuring circuit, a voltage supply circuit, a phase-locked loop circuit and an indicating lamp circuit. In the communication interface circuit, because a hardware language in which a serial-port communication protocol can be built is utilized on the FPGA, a corresponding adapter interface chip is utilized for RS232, RS422 and RS485 interface communication in the communication interface circuit. The testing system can supply a testing facility and a testing method for interface board testing of the 80C186 processor architecture board, thereby realizing quick product fault positioning, shortening mending period and ensuring high product quality.

The invention belongs to the field of manufacturing of composite material blades, in particular to a method for preventing paint cracking on the surface of a transition area between a composite material paddle and a metal part. The surface of the composite material paddle needs to be provided with different metal parts in a glued mode, the deformation amount of the metal part is different from that of the composite material in the flying process, so that the appearance and the quality of the blade of the composite material are influenced due to the fact that cracks are easily generated on thepaint surface of the transition area. According to the method for preventing paint cracking on the surface of the transition region between the composite material paddle and the metal part, the surface treatment is carried out on the transition area before paint spraying, the rough grinding is carried out on the part of the transition area, and the cleaning and airing are carried out; the bottom glue is sprayed and aired; the glass cloth is cut and is glued and soaked, the glass cloth is laid in the transition area, and a vacuum bag is manufactured for vacuumizing and pressing; the surface ofthe vacuum bag is cleaned after solidified; and the method for preventing paint cracking on the surface of the transition region between the composite material paddle and the metal part is safe and reliable in quality, simple and convenient to operate and capable of reducing the maintenance cost, so that the repairing period of the surface cracks of the blade metal part is shortened.

The invention discloses a welding-fixing device for circular connectors. The welding-fixing device for the circular connectors comprises a fixed rod, a rotary sleeve, an installation support, an adapting support, a right-angled sectional material fixing block A, a right-angled sectional material fixing block B and a right-angled sectional material fixing block C, wherein the rotary sleeve is installed on the outer circumferential surface of the fixed rod in a sleeved manner, and capable of moving up and down along the axis of the fixed rod and rotating around the axis of the fixed rod; the endA of the installation support is installed on the rotary sleeve through a bolt, and one circular connector to be welded is placed in a V-shaped structure of the installation support; a locking screwA penetrates through the end B of the installation support and is matched with a thread hole C in the end B, and then the tail end of the locking screw A abuts against the outer circumferential surface of the circular connector; and the welding-fixing device for the circular connectors needs to be fixed to a right-angled sectional material on an aircraft. The welding-fixing device for the circularconnectors is capable of carrying out multi-angle and multi-dimensional fixing on the circular connectors with different diameters, and then welding with cables with different lengths in an equipmentcabin.

The invention discloses a movable automatic lifting flexible docking block unit for ship. The unit is characterized in that a sleeve is arranged in a box body, a strong spring is installed in a steel pipe sleeve, the top end of the strong spring is connected with a transition iron column, and a movable iron bolt is welded with a supporting plate into a whole and connected with the top of the transition iron column to form a movable supporting tray; a rubber pad is arranged on the upper surface of the movable supporting tray; iron weight trays are symmetrically arranged on the transition iron column; a sliding mechanism is arranged outside the bottom of the box body and a pulley is in contact with the rail; and transverse rails are erected on the longitudinal rails, and the longitudinal rails are directly installed and fixed to the dock ground. Ship docking and switching of different docking schemes are achieved by adjusting the positions of the transverse rails and the flexible docking block units, automatic stretching of the strong springs, automatic rotation of the movable supporting plate and adding of heavy objects to the weight iron bracket, adjustment such as manual adding of wooden base plates is not needed, and therefore the working efficiency is improved, shipyard expenditure is saved, and resource waste is reduced.

The invention discloses a repairing device for a shaft end of a large gear shaft; the repairing device comprises a bearing platform, a locking device and a transmission device, wherein the bearing platform comprises a chassis as well as wheels and hydraulic support legs, and the wheels and the hydraulic support legs are arranged below the chassis; the transmission device is arranged on the upper surface of the chassis; the locking device comprises a top frame, one end of the top frame is detachably and fixedly arranged on the bearing platform or detachably and fixedly arranged at the top of atransmission gear box of a transmission arranged on the chassis, and the other end of the top frame is detachably fixed on an action object; and the transmission device comprises a motor and a changespeed gear box which are arranged on the bearing platform as well as a processing element rotating shaft driven by the motor and the change speed gear box, and the processing element rotating shaft isprovided with a shaft end processing device. Without returning to the factory and transshipment, the repairing efficiency is improved, the repairing cycle is shortened and cost is reduced; and compared with manual repair, improvement of the repairing quality and quality consistency can be guaranteed to a certain extent.

The present invention discloses a scratched mask repair apparatus and a method. The apparatus comprises a bracket device, a defect detection device and a repair module, wherein the bracket device is arranged in a photolithography machine chamber, the defect detection device and the repair module are arranged on the bracket device, and the repair module comprises a plurality of repair refills with different sizes. According to the present invention, the bracket device of the scratched mask repair apparatus is directly arranged in the photolithography machine chamber, and can timely and rapidly perform repair in the photolithography machine during mask scratching without influence on productivity of the photolithography machine, such that the function of the photolithography machine is complete, the automation degree of the photolithography machine is high, the mask repair can be directly completed in the photolithography machine, and the internal space of the photolithography machine is completely utilized so as to substantially shorten the repair period and provide characteristics of simpleness, rapidness, low cost, and no influence on productivity.

The invention belongs to the technical field of aircraft engine repairing, and relates to a long and thin inner cavity deep hole splitting method for an aircraft engine. The method comprises the steps that firstly, the axial distance a between a tensioning pipe and the opening end of the air inlet side of an engine low-pressure rotor is measured to serve as the reference size for cutting off the tensioning pipe; the feeding amount is measured through a splitting device, and the splitting depth is calculated; the tool end of the splitting device enters from the engine air inlet side, the feeding amount b of the splitting device is measured, and when the difference between a and b is smaller than or equal to 0.1 mm, contact between a guiding core shaft end of the splitting device and the end face of the tensioning pipe is determined; then, high-temperature alloy deep hole cutting is carried out, the tensioning pipe starts to be split from a boss through the splitting device, and when the outer diameter of the tensioning pipe is equal to the outer diameter of a tool of the splitting device through cutting, in other words, the axial depth is the sum of a and 36 mm, the tensioning pipe is cut off; and a low-pressure unit body and the vortex rotor are split into two main assemblies from the front end and the rear end of a main machine. According to the long and thin inner cavity deep hole splitting method, the repairing cycle is shortened to the maximum degree, the cost is greatly saved, and meanwhile the function of assisting decomposition of the engine is achieved.