81results about How to "Improve the one-time pass rate" patented technology

The invention provides a polishing method for a tiny ceramic product. The polishing method includes the step that by means of a rolling polishing machine and a polishing solution, a cambered surface and a straight body position of the tiny ceramic product are polished simultaneously. The polishing method concretely includes the steps that firstly, the polishing solution is prepared, secondly, multiple blocks of the tiny ceramic products and the polishing solution are placed in the rolling polishing machine, the rotational speed of the rolling polishing machine is controlled ranging from 10 rpm to 60 rpm, and the polishing time is controlled ranging from 2 hours to 60 hours; with the actions of mechanical friction and chemical etching, polished tiny ceramic products are obtained in the rolling polishing machine; the polishing solution comprises, by mass, ceramic polishing powder, high-frequency porcelain and water at the ratio of 1: 50-200 :20-120, the ceramic polishing powder comprises SiO [2] particles with an average diameter ranging from 20 nm to 300 nm and cylinder-shaped Al [2]O [3] with a diameter ranging from 1 mm to 10 mm and a height ranging from 2 mm to 20 mm. The one-time yield of obtained tiny ceramic products is larger than 95 %, the surface roughness of the obtained tiny ceramic products is smaller than 5 nm, forty thousand tiny ceramic products can be processed simultaneously at one time, the processing time is shortened, and the production cost is saved.

The invention relates to a manufacturing method of a cable tower reinforcement skeleton, in particular to a reinforcing steel bar component of a super large variable cross-section cable pylon. The manufacturing method includes the steps: arranging stirrups horizontally and horizontally according to the designed spacing, binding the longitudinal bars arranged along the horizontal longitudinal direction on the stirrups according to the designed spacing, bending the stirrups at the intersection of the stirrups and the bending edge along the axial direction and the circumferential direction of thebending edge respectively, so as to form a ring corresponding to the lower large and upper small variable cross-section reinforcing bar mesh of the cable tower structure, sequentially nesting the reinforcing bar mesh of different sizes corresponding to the same segment of the cable tower according to the flow chart, and binding and fixing the reinforcing bar mesh into a complete section of reinforcing bar parts through the bracing hook bars; the bending edge finger stirrup corresponds to the connecting line of the points of the same vertical edge of the cable tower. The manufacturing method of the invention is simple and efficient, greatly improves the precision degree of the reinforcing steel bar components, reduces the man-hour of welding construction, improves the efficiency of assembling construction, and has great popularization value.

The invention discloses a Unigraphics-NX (UG)-based blade profile software reshaping method. The method can effectively solve the problems that the orthopedic effect is instable and the deformation rebound is easily caused because the conventional mechanical orthopedics mainly depend on human experience, and can solve the problem that a mechanical orthopedic method cannot be used for blade profile reshaping due to special blade materials. The method comprises the following steps of: pre-processing a blade profile, and detecting the size of an inner arc and a rear arc of each gear of the pre-processed blade profile; analyzing the detection report, and listing deformation of comparing the steam admission side, the middle part and the steam outlet side of the inner arc and the rear arc of the profile line of each gear with the designed theoretical value of a blade; determining the correction quantity of the profile line of each gear according to the deformation, and performing different bias on the profile line of each gear according to the correction quantity to realize profile software reshaping; performing fairing and rounding on the software reshaped profile line data to generate a new model serving as a molding, compiling and processing program, and processing and detecting the profile according to the new program; if the blade profile processed by using the new program still does not accord with the requirement, continuing the adjustment; and if the detection result meets the process requirement, finishing the software reshaping operation, and performing batch production.

The invention provides a milling cutting method of a large petal shaped aluminum alloy component. The method involves a milling cutting device. The method comprises the steps of 1, clamping the melonpetal shaped component with supporting of a C-shaped clamp and fixing through bolts, namely, fixing the wide end of the component firstly; secondarily fixing the left side edge and the right side edge, close to a line in the length direction of the wide end, of the component; thirdly fixing the left side edge and the right side edge, close to a line in the length direction of a narrow edge, of thecomponent; and fixing the melon petal shaped component to a bearing plate of the device; and 2, etching a product theory line on the melon petal through a milling cutter; then performing allowance milling and cutting on the melon petal shaped component based on a milling and cutting track line under the reference which is the product theory line through the milling cutter, wherein the milling andcutting track line bypasses each bolt to form a bolt fixing lug; and then milling and cutting the bolt fixing lugs. According to the method, the melon petal shaped component milling cutting method corresponding to the device is simple to operate; the product accuracy is high; and the first pass yield is high.

The invention relates to a leakage testing and running-in testing method of a fuel cell. After quality testing is conducted on the fuel cell, before the fuel cell is overlaid to form a whole pile, leakage testing and running-in testing are conducted according to the following method: a plurality of membrane electrodes and bipolar plates are piled on a piling clamping device to form a leakage testing unit, and the number of the membrane electrodes and the bipolar plates is 5-10 groups; the leakage testing unit is taken out of the piling clamping device and put into a leakage testing clamping device, and leakage testing is conducted; a C-shaped clamp is mounted on the leakage testing unit meeting the requirement to form a testing unit; the testing unit is put into a testing table, and thus running-in testing is conducted; and the C-shaped clamp on the qualified testing unit is disassembled, the membrane electrodes and the bipolar plates are taken out to be used for assembling a fuel cellpile. According to the leakage testing and running-in testing method of the fuel cell, assembling of the testing unit can be fast, efficiently and reliably completed, before the fuel cell is piled, leakage full testing and running-in testing are conducted on the membrane electrodes and the bipolar plates, the assembling efficiency and success rate of the pile can be effectively improved, running-in time after the pile is formed is reduced, and performance consistency of the pile is guaranteed.

The invention discloses a technology control method of the production process of ferric trichloride and a reaction tower. The technology control method comprises the steps that the opening degree of achlorination controller is conditioned according to the temperature, the pressure, the inlet gas flux and the tail gas flux in the reaction tower, and the reaction temperature lower than 90 DEG C, the pressure lower than 0.05 MPa, and the tail gas flux of the inlet gas flux smaller than 5% in the reaction tower is controlled; and the condition that the opening degree of the chlorination controller is lower than 10%, and the exhaust gas pipe flux is larger than the inlet gas pipe flux is taken as a reaction ending point to judge. The system device comprises a temperature sensor, a pressure sensor, a flux monitoring device and the chlorination controller. The technology control method achieves accurate control of the production process of ferric trichloride, the utilization rate of chlorineis improved to reach 95.5-99.5%, the reaction ending point is accurately judged, the product pass percent is improved to reach 99.8%, and the content of ferrous chloride is lower than 0.25%. The technology control method improves the safety of the production technology of ferric trichloride, the utilization rate of the raw materials and the production efficiency.

The present invention discloses a production method of a round conductor low-voltage power cable with a high roundness. The production method of the round conductor low-voltage power cable with the high roundness is characterized in that: 4 strands of round-shaped wires are selected for core portions as conductors, the conductors are subjected to high-roundness insulation, filling strips are customized, the stands of conductors form an integrated round body through the heterogenic filling strips, a high-intensity elastic belting is arranged at the external portion of the integrated round body,an inner sheath is arranged at the external portion of the high-intensity elastic belting, an armor layer is arranged at the external portion of the inner sheath, and an outer sheath is arranged at the external portion of the armor layer; tension force of each pay-off rack is regulated prior to cabling, tension force balance between cores of strands of cables is ensured, instant tension forces ofthe cores of strands of cables are randomly monitored and regulated; the wrapping angle of the high-intensity elastic belting is less than 45 degrees; and the inner sheath and the outer sheath are subjected to extrusion molding through an extrusion-type head. The production method of the round conductor low-voltage power cable with the high spherical degree improves the production efficiency andhas good physical and mechanical properties, are flat in surface, high in spherical degree and convenient to construct, save raw materials and simple and clear in production process.

The invention discloses a tire nut deep blind hole plating and coating process. The process comprises the steps that firstly, the parts are sequentially subjected to pretreatment including thermokalite oil removing, thermokalite oil removing, electrolytic oil removing, acid pickling, electrolytic oil removing, excitation, pre-electroplating, stripping and electroplating; the two passes of thermokalite oil removing ensure that oil stain inside blind holes is cleaned away; stripping is conducted after pre-electroplating, and oxide skin inside the blind holes is stripped; additives are added intoelectroplating liquid medicine during electroplating; residual water in the blind holes of the electroplated parts is thrown away through rotation of a production line roller and a discharging centrifugal drier; then dehydrogenation baking is conducted, and residual water inside the blind holes is evaporated through high-temperature baking; and finally, passivation and closing are conducted. Theproblems that the covering power of zinc-nickel alloys is not sufficient, and consequently no clad layer exists in the blind holes and the blind holes rust easily are solved, and the process has the beneficial effects that oil stain and oxide layers in the blind holes are effectively removed, uniform zinc-nickel clad layers are plated, the interiors of the blind holes are prevented from rusting, and the first pass yield of products is improved to be 95% or above.

The invention discloses a tooling clamp for processing an insulating collar turning. The tooling clamp comprises a concave clamp (8) and a convex clamp (9), wherein the concave clamp (8) comprises a jaw chuck A (10) and a plurality of equant sectorial blocks A (11), the sectorial concave part in each equant sectorial blocks A (11) is composed of a sectorial plane A (13) and a arc-shaped surface side wall A (14), the convex clamp (9) comprises a jaw chuck B (15) and a plurality of equant sectorial blocks B (16), a sectorial plane C (19) is also arranged on the outer side of each equant sectorial block B (16), and the invention further discloses a processing method. The tooling clamp provided by the invention has the advantages that the gripping force is even, so that the deformation of a workpiece is avoided, the clamping efficiency is improved, the time is saved, the workpiece quality and the processing efficiency are improved, and the consistency and the reliability of a part is increased as well.

The invention provides an aluminum alloy conductor pole manufacturing method. According to the method, a conducting body is manufactured firstly, specifically, extrusion forming, broaching forming and mechanical turning of a conducting rod are carried out; then a conducting head is manufactured, specifically, machining of the conducting head is mainly carried out; and finally, the conducting head and the conducting rod are connected through a no-keyhole stirring friction welding technology. By means of the aluminum alloy conductor pole manufacturing method, the problem of the welding quality of large-thickness small-diameter circular seams is solved, and the method has remarkable advantages compared with the prior art. By adoption of the conductor pole manufacturing method, the joint assembly design of the conducting rod and the conducting head as well as the no-keyhole stirring friction welding technology, the qualified rate of manufacturing of conductor poles is greatly improved, the production efficiency is improved, and the production cost is reduced. Tests prove that by adoption of the aluminum alloy conductor pole manufacturing method, the manufacturing dimension precision of the conductor poles meets the design requirement, weld joints are continuous and compact in texture, the defects including pores, impurities and keyholes are avoided, and automatic control is achieved in the production process; and the yield of one-time welding is increased from 40% to 95%.

The invention discloses a method for cutting V-grooves of an optical fiber connector. The method comprises the following steps of: a, cutting a concave-down plane on the upper surface of a quartz base material of the optical fiber connector along the length direction, wherein the concave-down plane corresponds to top planes of the V-grooves; and b, cutting a plurality of V-grooves, which are arranged in parallel in turn along the width direction, on the concave-down plane. In the method, the quartz base material is cut step by step, the cut amount of each time is small, and the cutting feed is shallow, so the method can effectively improve non-uniform stress during cutting to meet requirements on cutting accuracy.

The invention discloses an arc extinguish chamber assembling tool. The arc extinguish chamber assembling tool comprises a bottom plate and an arc extinguish piece positioning plate; a guide hole is formed in the middle of the arc extinguish piece positioning plate; clamping grooves are formed in the front end of the arc extinguish piece positioning plate, and a limiting step is arranged below the front end of the arc extinguish piece positioning plate; an arc extinguish chamber assembling area is arranged in the center of the bottom plate and is provided with a positioning mechanism; a limiting baffle and a guide pin are fixedly arranged behind the arc extinguish chamber assembling area; the arc extinguish piece positioning plate is located above the bottom plate and is in sliding connection with the bottom plate, the limiting baffle is located in front of the limiting step, the guide pin is arranged in a guide hole, and when the arc extinguish piece positioning plate is pushed forwards, the front end of the arc extinguish piece positioning plate can stretch into an arc extinguish chamber from the open end of the assembled arc extinguish chamber, and when the rear surface of the limiting baffle is in abut joint with the front surface of the limiting step, arc extinguish pieces are correspondingly clamped in the clamping grooves. The assembling tool is convenient to operate, safe, reliable, and capable of reducing the labor intensity and improving the assembling efficiency and the one-time yield.

The invention belongs to the technical field of motors, in particular to a gear reduction claw-pole type permanent magnet synchronous motor. A gear reduction claw-pole type permanent magnet synchronous motor includes a mounting base plate, a motor housing and a gearbox housing, A motor housing is arranged on the assembly bottom plate, a reduction gear housing is arrange on the assembled bottom plate at one side of that motor house, A motor housing is communicated with a reduction box housing, and a transmission gear assembly is arranged at the communication part; a rotor assembly and a statorassembly are arranged in the motor housing; a reduction gear assembly and a reduction box output shaft are arranged in the reduction box housing; and the rotor assembly drives the reduction box outputshaft through the transmission gear assembly and the reduction gear assembly. The invnetion has the advantages of simple structure, convenient installation, low energy consumption, high production efficiency, short and small flat structure, and is suitable for various occasions, so that the efficiency of the product is improved compared with the traditional product in batch production, and the one-off qualification rate is improved.