44results about How to "Size qualified" patented technology

The invention discloses a method for rolling a rectangular structural steel ring blank to form an irregularly-shaped thin-walled ring part. According to the rolling method, a reasonable core roller feeding mode is provided, and the rectangular structural steel ring blank is inversely designed according to the shape and the size of the irregularly-shaped thin-walled structural steel ring part to realize the rolling of the rectangular structural steel ring blank into the irregularly-shaped thin-walled ring part, so that a rolling process can be continuously and stably implemented; the rolling method is mainly used for the forming of the irregularly-shaped thin-walled structural steel ring part in the fields of aviation, aerospace, industrial machinery and the like.

The invention discloses a processing method for a fluid distribution cover, which includes the steps of turning, fine milling, and finishing turning; the turning steps are as follows: step 1, a cylindrical blank with a length of 130±0.5 and a diameter of 220±0.5 is flattened by turning The axial end face can be exposed; Step 2, turning the outer circle of the blank; Step 3, drilling a φ50 process hole along the axial direction, with a depth of 48, and boring the inner hole; turning the inner spherical surface; Step 4, turning around, using the tooling body and the inner spherical surface Assembling, clamping and correcting the outer circle from the outer diameter of diameter ≥ φ216, turning the end surface flat; Step 5, turning the outer spherical surface, ensuring the wall thickness 6 ± 0.1 and the total height 126; then remove the flash and burrs; the steps of fine milling are as follows : Clamp the outer circle of ≥φ216, and the tooling body supports it; drill 366-φ9.5±0.2 holes, and then drill 3-φ10±0.2 process holes. The steps of finishing turning are as follows: Step 1, clamping ≥φ216 outer circle Circle, the outer circle, end face and 3‑Φ10±0.1 process hole are used as the reference to correct the workpiece: Step 2, turn off the process chuck with a reserved size of 20 for clamping, and the unit of size is mm.

The invention belongs to the field of coating preparation by electrodeposition on the inner wall of a pipe, and relates to an automatic continuous flow electroplating device and method for the inner wall of a pipe fitting. The device includes a plating tank, a multi-channel plating solution flow controller, a hanger, a mechanical arm, a rectifier and a display controller. First, the tubular workpiece is clamped on the hanger of the automatic continuous flow plating device after the pretreatment process such as degreasing and pickling; the plating tank is respectively equipped with pure water, activation solution and electroplating solution; by setting the display controller program according to Water washing, activation, electroplating, water washing process, control the cooperative operation of robotic arm, multi-channel plating solution flow controller and electroplating power supply, the above process can be added according to the demand to realize multi-layer composite electroplating. The invention is especially suitable for flow electroplating a single or multi-layer composite coating on the inner wall of a pipe with a large length-to-diameter ratio. Through the device and method of the invention, a coating without taper can be obtained at one time, and the bonding between the substrate and the coating is excellent.

The invention provides an internally acting type ductile iron jacking pipe for integral trenchless pipeline construction. One end of a cylinder section is connected with a spigot section, and the other end of the cylinder section is connected with a socket section; and a socket seal section is connected with a socket push section. According to the use requirements and manufacturing process of theinternally acting type micro jacking pipe, by reducing the inner diameters of small sections of the socket section and the socket section, the wall thickness of the part of a pipe body is increased tomeet the requirements of transmitting the pushing force. Through the thickening of the tail ends of the spigot section and the socket section, the compression stress of the spigot section is reducedby more than half; the jacking pipe is produced by adopting an integral casting method; and no additional flanges and reinforcing ribs are required, which reduces the material consumption and bondingworkload of the jacking pipe, reduces the production cost, and improves the production efficiency. The internally acting type ductile iron jacking pipe reduces the inner diameters of the small sections of the spigot section and the socket section, increases the wall thickness of the part of the pipe body, and meets the requirements of transmitting the pushing force. The jacking pipe is produced byadopting the integral casting method, which reduces the weight and the difficulty of production. The internally acting type ductile iron jacking pipe is used in the field of trenchless construction in water delivery projects.

The invention discloses a method for manufacturing an end socket of a voltage stabilizer for nuclear power. The integral end socket is subjected to hot stamping deep drawing by a 16MND5 low-alloy steel plate, and is subjected to heat treatment of normalizing and tempering to form the end socket, which is reliable in quality, accurate in size and high in mechanical property, of the voltage stabilizer for nuclear power. In the method, the weight of the end socket manufactured by the low-alloy steel plate can be reduced by about half compared with that of the end socket manufactured by forging piece materials, the manufacturing period is short and the cost is reduced greatly.

The invention aims to provide an inspection tool for inspecting the size of magnetic steel. The inspection tool comprises a body. A penetrating profiled groove is formed in the body, and the section of the profiled groove is the same as that of a punching sheet groove. By simulating the punching sheet groove type, adopting to-be-inspected magnetic steel A as a subblock and adopting the inspectiontool as a master block, the to-be-inspected magnetic steel A can pass through the profiled groove in the body successfully without obvious gaps, and the size of the to-be-inspected magnetic steel A isqualified.

The invention discloses a shape processing method for a narrow-side PTFE antenna PCB product without internal positioning, which is suitable for an ultra-narrow antenna PCB made of PTFE materials, and can ensure that the antenna PCB board is qualified in size after shape processing, and has no oxide and burr defects. Guarantee product quality and eliminate defects of oversized or undersized dimensions due to shape processing.

The invention discloses a composite radome arc-shaped flange interface hole machining clamp and method. The composite radome arc-shaped flange interface hole machining clamp comprises a drilling clamp and a special countersinking tool. The drilling clamp is composed of a positioning plate used for positioning during drilling and a drilling sleeve used for position guiding in the drilling process, the thickness of the positioning plate is 3 mm, an antenna housing is arranged on the top of the positioning plate, and the appearance of the positioning plate is matched with an oval pit in the bottom of the antenna housing. A drilled hole is positioned and guided through the drilling clamp, accurate drilling is conducted on an arc-shaped flange interface of the radome according to the required position, then the guide part of the special countersinking tool is inserted into the drilled hole, the countersinking tool guide column part is used for limiting and guiding, and the countersinking tool body blade part is used for countersinking. The machined hole is accurate in position and qualified in size, a special drilling tool does not need to be customized, the cost is saved, meanwhile, the task progress can be better guaranteed, and the method is easy to master, high in operability and wide in application range.

The invention relates to a small clamping tool with a fast fixing function. The tool is applied to assembly of an expansion screw part of a circuit breaker product for aviation, fast fixing of the part is achieved and a platform is provided for subsequent assembly of the expansion screw part. The tool mainly comprises a hoop (1), a fixed seat (2), a base (3), a limiting plate (4), a leaf spring (5) and a locking plate (6). The clamping tool is applied to assembly of the expansion screw part of the circuit breaker product and plays limiting and fixing roles in the expansion screw part, and thecondition that the assembly dimension of the expansion screw part meets the requirements is ensured.

The invention discloses a heat treatment method for precipitation hardening vane steel, which comprises the following steps: (1) carrying out intermediate-temperature heating on the precipitation hardening vane steel at the temperature of 800-950 DEG C, and preserving heat for 1-3h; (2) after being discharged, putting the precipitation hardening vane steel onto a die for thermal calibration; and (3) carrying out aging treatment and discharging for air cooling. The heat treatment method can get rid of solution treatment, and can carry out optimizing processing on temperature and time for intermediate-temperature heating and aging treatment, thus effectively solving the problem of large deformation caused by secondary solution heat treatment; and a forged piece obtained by adopting the heat treatment method is small in deformation, qualified in dimension and excellent in performance.

The invention discloses a method of rolling titanium alloy rectangular ring blanks into special-shaped thin-walled rings. A mandrel reasonable feeding manner is provided to achieve a continuous, stable rolling process; titanium alloy rectangular ring blanks are reversely designed according to the shape and size of titanium alloy special-shaped thin-walled rings; accordingly, the titanium alloy rectangular ring blanks are rolled into the special-shaped thin-walled rings. The method is mainly applied to forming the titanium alloy special-shaped thin-walled rings in the fields of aerospace, industrial machinery and the like.

The invention discloses a method for forming a special-shaped thin-wall ring from a stainless steel rectangular ring blank by rolling. In order to enable the rolling process to be continuously and stably performed, the invention discloses a reasonable feeding mode for a core roll, and moreover, the stainless steel rectangular ring blank is designed in a backstepping manner according to the shape and dimensions of the stainless steel special-shaped thin-wall ring, thus realizing forming for the special-shaped thin-wall ring from the stainless steel rectangular ring blank by rolling. The rolling method is mainly used for forming stainless steel special-shaped thin-wall rings in the fields of aviation, aerospace, industrial machinery and the like.

The invention discloses a master batch dicing and packing device, belonging to the technical field of master batch production equipment, comprising a dicing mechanism and a packing mechanism. It includes a roller, a knife slot is arranged on the roller, and ≥15 knife bodies with blades are arranged in the knife slot; a particle screening mechanism is arranged between the pelletizing mechanism and the packing mechanism; The particle screening mechanism includes a screen, a fan and a particle collection bag, and the screen is provided with a vibration device; the packaging mechanism includes a funnel with a discharge port at the bottom, and a packaging bag sealing machine is provided below the discharge port. A conveying wheel is arranged below the discharge port, and a shaking device is arranged on the conveying wheel; the hob of the device of the present invention is easy to maintain and replace, has traction capability, has fast dicing speed and high quality, and can perform different screening of large and small particles. And synchronous drying and cooling, high efficiency of packaging bags, small footprint and convenient operation.

The invention discloses an upper lock gap detection device and a detection assembly method. The upper lock gap detection device comprises a support framework and a clamp body arranged on a work bench and used for fixing an upper lock. The bottom end of the support framework has a positioning surface positioned on the work bench; the top end of the support framework is provided with a fork shape member capable of moving up and down with respect to the support framework; the fork shape member is used for carrying out press adjustment on a lock hook of the upper lock; and the support framework is provided with a plurality of plug pins arranged transversely for press positioning of the upper lock after being assembled. The gap detection device can be used for a plurality of gap detection and dimension guarantee of the upper lock; and through reasonable process arrangement, the quality of the product is ensured, and meanwhile, higher production efficiency is also ensured.

The invention discloses an adaptive cooling device for manufacturing a fiber loose tube at a high speed, the adaptive cooling device comprises a water tank, a water volume control unit, a position adjusting unit and a controller; the water tank is used for cooling and shaping the fiber loose tube, and the internal cooling water in the water tank in real time immerses the fiber loose tube; the water volume control unit is used to control the water volume of the water tank to in real time ensure that the cooling water in the water tank can immerse the fiber loose tube; the position adjusting unit is used to adjust the distance between the water tank and an extruder head, thereby adjusting the water inlet surface of a stretching zone to precisely control the cooling and shaping size of the fiber loose tube; the controller is used to control the water volume control unit and the position adjusting unit to work. The present invention also provides an adaptive cooling method for manufacturing the fiber loose tube at the high speed. The adaptive cooling device can precisely control the cooling and shaping size of the fiber loose tube and ensures the dimensional stability of the fiber loose tube in the speed increasing stage.

The invention discloses a method for rolling an aluminum alloy rectangular ring blank to form a specially-shaped thin-wall ring. In order to enable a rolling process to be continuously and stably processed, the invention discloses a reasonable feeding manner of a core roller and performing back-stepping design of an aluminum alloy rectangular ring blank according to shape and size of an aluminum alloy specially-shaped thin-wall ring so as to roll the aluminum alloy rectangular ring blank to form the specially-shaped thin-wall ring. The rolling method is mainly applied to forming of aluminum alloy specially-shaped thin-wall rings in fields of aviation, aerospace and industrial machinery.

The invention provides a preparation method for a graphene quantum dot. The preparation method comprises the following steps: preparing low-temperature expanded graphite; dispersing the low-temperature expanded graphite in a sodium dodecyl sulfate aqueous solution, carrying out ultrasonic treatment and centrifuging treatment, and subjecting a supernatant to filtering so as to obtain a transparentlight-black solution; and subjecting the transparent light-black solution to dialysis in deionized water, and removing impurities which are soluble in sodium dodecyl sulfate so as to obtain a transparent light-gray graphene quantum dot solution. The preparation method for the graphene quantum dot provided by the invention has the advantages of clear process and principle, simple and controllable operation, economy, high efficiency, sustainability, high product yield and high product quality through intercalation-stripping-dispersion treatment to an expanded graphene raw material by combinationof high-power ultrasonic wave in an SDS solution.

The invention relates to a thermoplastic polyether ester elastomer foaming material and a preparation method thereof. The foaming material is prepared from the following raw material components in parts by weight: 50 to 95 parts of polyether ester TPEE (Thermoplastic Polyether Ester Elastomer), 0 to 50 parts of a modified polymer material, 0.05 to 2 parts of a nucleating agent and 0.1 to 5 parts of a foaming agent; when the adding amount of the modified polymer material is 0, the difference (T2-T1) of the melting temperature T2 of the polyether ester TPEE and the Vicat softening point temperature T1 is greater than or equal to 30 DEG C. Compared with the prior art, a continuous foaming formula and a continuous foaming technology of the TPEE are provided, and the problems that the foaming material with stale performance is difficult to prepare by existing TPEE, especially continuous foaming is difficult to realize are solved.