238results about How to "Guaranteed process requirements" patented technology

The invention discloses a machining process of a thin-wall groove milling stainless steel part. The machining process of the thin-wall groove milling stainless steel part mainly comprises the following steps of heat treatment of a rough casting, rough machining, natural aging processing, subsequent rough groove milling, finish machining and finish groove milling. Through the design of a machining route, the machining process of the thin-wall groove milling stainless steel part reduces production of stress as much as possible, and effectively avoids deformation caused by stress concentration, thereby improving machining precision and the accuracy degree.

The invention provides a processing process of an automobile engine crank shaft. The process comprises the following processing steps of (1) blank forging; (2) coarse tuning: coarse turning of a main shaft neck and a connecting rod neck is carried out; (3) coarse drilling: coarse drilling of a main oil hole is carried out; (4) annealing heat treatment; (5) semi-finish turning: semi-finish turning is carried out on the main shaft neck and the connecting rod neck; (6) tempering; (7) fine turning: fine turning is carried out on the main shaft neck and the connecting neck; (8) coarse and fine grinding: coarse and fine grinding is carried out on the main shaft neck and the connecting rod neck; (9) hole drilling: coarse drilling, expanding and reaming of balance block installing holes and inclined oil holes are carried out; (10) compounding reinforcing; (11) rolling processing: each processed hole is subjected to rolling pressing processing; (12): the main shaft neck and the connecting rod neck are subjected to polishing processing; (13) anti-rust processing; (14) inspection and packaging. The process solves three problems of low rigidity intensity, poor wear resistance and good lubrication performance in the existing automobile engine crank shaft production process, so that the finally produced crank shaft has the sufficient rigidity and intensity, good impact load bearing capability and good abrasion resistance and lubrication performance.

The invention relates to a splitting and assembling processing method for a fine forming die which leads about 30mm of a movable mould core blank and utilizes a linear cutting processing to divide into a plurality of equal parts, codes running numbers according to sequence and carries through plane furbishing and polishing processing on a cutting parting surface; then utilizes the radial actions of an anchor ear and trip bolt to fix the movable mould core; clamps and turns the locating devices at two ends and then utilizes a fine jig mill to process a datum hole; then utilizes a self-turning mode and adopts the modes that a floral disc and a mandrel are tightly cooperated and the mandrel is cooperated with the datum hole of the movable mould core in small clearance to carry through fine forming processing on the inner shape and outer taper of a product. The die forming product processed by the method has the advantages of large extent improving on the surface quality and dimension precision, completely qualified quality, no security hidden troubles, convenient processing. The processing equipment used has the advantages of simple structure and lower cost.

The invention discloses an anti-vibration strip component of a steam generator of an AP1000 nuclear power unit. The anti-vibration strip component comprises a V-shaped anti-vibration strip and two end caps respectively arranged on both ends of the anti-vibration strip, wherein the anti-vibration strip is made of a 405 stainless steel material, and the end caps are made from a 609 nickel-based alloy material. A preparation method for preparing the anti-vibration strip component comprises the following steps of: preparing the anti-vibration strip, preparing the end caps, bending, assembly the end caps, heading, checking, cleaning and packaging. According to the anti-vibration strip component of the steam generator of the AP1000 nuclear power unit provided by the invention, the structure is simple, the product quality conforms to precision requirements of the steam generator in a nuclear power plant about the anti-vibration strip, and the anti-vibration strip component is safer to use. According to the preparation method of the anti-vibration strip, through strict preparation steps, the technique requirements about the anti-vibration strip component of the steam generator in the nuclear power plant are ensured, the quality is ensured, and safety is improved.

The invention provides a feed gas processing device for natural gases, which comprises a feed gas preseparator, a compressor, a refrigerating separator and a fractionating device which are connected in sequence. The feed gas processing device also comprises a CNG (compressed natural gas) compressor; the refrigerating separator and the fractionating device are respectively provided with a dry gas exhausting pipe; and the CNG (compressed natural gas) compressor is connected with the dry gas exhausting pipe of the refrigerating separator and the dry gas exhausting pipe of the fractionating device. The feed gas processing device is particularly suitable for processing the natural gas incapable of being fed into a gathering pipe network of far oil-gas fields or sporadic oil-gas wells, can greatly reduce investment, and can simultaneously reduce the operating energy consumption during the production process. The liquefied gas and stabilized light dydrocarbon produced by the feed gas processing device can be used as chemical raw materials and industrial or civil fuels; the compressed natural gas can be conveyed to cities and used as fuel for natural gas automobiles to replace gasoline and diesel used by urban automobiles; and the feed gas processing device greatly cleans urban environment, and has excellent economic benefits and social benefits.

The intelligent precise polishing machine with one finishing ring consists of one frame, one polishing disc mounted on the frame through one spindle, one driving motor with output shaft connected to the spindle, one speed measuring mechanism connected to the spindle, and one intelligent control platform connected to the driving motor and the speed measuring mechanism. The intelligent precise polishing machine has also one finishing ring and one finishing ring holder, the finishing ring with one base disc for holding the workpiece is located over the polishing disc, and the finishing ring holder mounted on the frame has one middle arc segment not less 90 deg and two friction wheels in two ends for the finishing ring to be connected to. The present invention realizes the on-line trimming of the planar precision of the polishing disc to result in ver high planar processing precision and short processing period.

The present invention relates to the field of concentration by evaporation technology. Said equipment is mainly composed of hot-air indirectly-heating hot-blast furnace, evaporator, condenser and hot-air transferring equipment. The hot-air outlet of indirectly heat-exchanged hot-blast furnace is connected with evaporator by pipeline, the outlet of evaporator is connected with condensation heat-exchanger, and the air outlet of condenser is connected with blower fan by pipeline, so that they are formed into the connected evaporation and condensation system.

The invention relates to a straightness detection device for an inner hole of a spindle storing drum. The straightness detection device comprises two adjusting bases, a leveling ruler guide rail, a linear slide block and a dial gage, wherein the two ends of the leveling ruler guide rail are arranged on the two adjusting bases, respectively; the linear slide block with the length identical to that of the leveling ruler guide rail is arranged at the upper end of the leveling ruler guide rail; the dial gage is arranged on the linear slide block; slide chutes matched with the linear slide block are formed in the upper and lower ends of the dial gage; a vertical adjusting mechanism and a horizontal adjusting mechanism are also arranged on the adjusting bases. According to the straightness detection device provided by the invention, the leveling ruler guide rail is adjusted to a required angle through the adjusting bases, is located in a horizontal straight line and passes through a to-be-measured deep hole; the straightness of the deep hole can be accurately measured through the dial gage; the straightness detection device can be excellently applied to measurement for the straightness of deep holes.

The invention relates to a jig used for drilling incline hole and the countersunk keyhole on the valve core of electro-hydraulic servo valves, comprising a jigs body (1), a drill bush (2), a padding block (4), two drill bush seats (51) and (52), a straight pin (6) and two quick-changing drill bushes (7). The invention is characterized in that: jigs body (1) is vertically-faced on the left and right sides, front side and the back side and the lateral faces; two end faces are bilaterally symmetric and take an included angle Beta with the horizontal plane; the intracavity is a hollow cylinder coordinating with the valve core clearance; the drill bush erection holes, countersunk threaded hole are arranged at both ends of the cylinder, and the gap for the installation of the quick-changing drill bush and bolts are arranged on the lateral face of the cylinder. The invention has the advantages of convenient clamping of the valve core on the driller vice and processing two inclined holes and the countersunk keyholes on the driller. Meanwhile, on the premise of guaranteeing the processing requirements, the frequent clamping of the jig is consistent with the positioning precision, the work efficiency is increased and the requirement of the technical level of workers is lowered.

The present invention relates to a plates hoisting equipment, in particular, it relates to combined hoisting equipment for horizontally-hoisting and turning hot-pressed plate and its application method. Said invention is characterized by changing the original flexible steel wire rope hoisting method into the invented rigid frame structure hoisting method. The invented hoisting equipment mainly includes the following several portions: curved board, cross-beam, horizontal hoisting plate, hoisting hooks, turning-hoisting plate and channel steel. Besides, said invention also provides the concrete steps of its application method.

An adjustable sealing rotary valve mainly solves technical problems that the traditional rotary valve has short service life, heavy maintenance management workload, bad gas tightness, and when the rotary valve is used in the high temperature work conditions, equipment accidents easily happen, and the like. The adjustable sealing rotary valve has the technical solution that the rotary valve is formed by the combination of a rotary valve shell and a rotor (3), wherein the rotor (3) is provided with a rotor slot (4); the rotary valve shell is provided with a feeding hole (1) and a discharge hole(5); a feeding hole connecting piece (11) and a discharge hole connecting piece (51) are arranged on the feeding hole (1) and the discharge hole (5); the rotary valve shell (2) is internally sheathedwith a seal housing which is of a non-circular structure; the feeding hole (1) on the upper part of the rotary valve shell (2) is internally provided with a sliding sleeve (8) which is movably matched; the lower part of the sliding sleeve (8) is arc-shaped and sheathed between a sealing housing (6) and the rotor (3) in a matching way; by changing the structural style that the valve body of the traditional rotary valve directly contains the rotor, the valve body and a containing component of the rotor are separated, thus prolonging the service life thereof and increasing the gas tightness. Theadjustable sealing rotary valve is mainly used for powder or granule conveying devices.

The invention relates to the technical field of prefabricated beam construction, in particular to an automatic control system and method of pre-tensioning prestress construction. The automatic control system comprises an automatic control center and a power system. The automatic control center is connected with a monitoring device and a control device. The monitoring device comprises a component used for monitoring the steel strand tensioning parameters and the pressure of the power system. The automatic control center is further provided with a signal receiving device and a micro processing module. An original data signal is received by the signal receiving device, analyzed and processed by the micro processing module, converted into a control signal and transmitted to the control device. The tensioning process is completed through control of the control device to the power system. By the adoption of the automatic control system, the problems that according to manual control, numerical reading is inaccurate, and the tensioning stress is difficult to control accurately are solved, the tensioning stress is well controlled, the tensioning process of steel strands meets the technological requirements, the quality of a prefabricated beam is improved, and standard production of products is also promoted.

The invention discloses a double-tilt-angle universal milling head rotating shaft locating precision measuring device, and discloses a device and detection method suitable for the rotary precision detection of an A/B, C axis moment motor driven and machinery driven numerical control double-tilt-angle universal milling head. The device comprises a 12-surface or 36-surface prism and an autocollimator, wherein the 12-surface or 36-surface prism is arranged on a locating shaft, the 12-surface or 36-surface prism is located by a shaft neck and an end face on the locating shaft, the other side is provided with a gland and a nut, and the 12-surface or 36-surface prism is fixed on the locating shaft by the gland and the nut. The device provided by the invention is compact in structure and easy and convenient to operate, can adjust the location fast and effectively, guarantees that the connection detection center of detection elements such as a 36-surface prism and a 36-surface prism is overlapped with the centre of the A/B, C axis, guarantees the veracity and effectiveness of detection results, and further guarantees the positioning precision of the double-tilt-angle universal milling head, thereby meeting the high-precision machining requirements; the fixture is low in cost and has high precision and high stability.

The invention provides an automatic liquid injection type vacuum edge bonding machine, comprising a cylinder, a work chamber and a worktable arranged in the work chamber, wherein a transition bin is arranged on one end of the work chamber, a rotary operating panel is arranged on the other end of the work chamber, and a conveyor belt and a feeding platform are arranged on the table top of the worktable. The automatic liquid injection type vacuum edge bonding machine further comprises a feeding mechanical arm, a liquid injection mechanism, a first degassing standing box, a second degassing standing box, a third degassing standing box and a vacuumizing edge bonding mechanism, which are arranged right above the conveyor belt and are connected in sequence. The automatic liquid injection type vacuum edge bonding machine provided by the invention is completely sealed by a high-performance sealing pad, and an inlet dehumidifying device is further arranged, thus the low temperature and low humidity environment in the machine and the process requirements in the liquid injection process are ensured, the operation automation degree is high, the machine operation is simple, only one operator is needed in the whole production process to manually feed and discharge materials, and the intermediate processes are all automatically finished by machines, therefore, the production efficiency is improved and influence of the complicated intermediate processes to the product quality is reduced.

A control device and method for increasing the productivity of injection moulding machine by use of frequency variator to increase the switching speed between technological steps features that the technological parameters and working state signals are set up, the preset time from one step to next step is calculated out, and a frequency control signal for next step is output to the frequency variator when the preset time is reached.

The invention discloses a fresh vegetable processing technology. The processing technology comprises the following steps: selecting vegetable varieties with rich meat quality, removing parts with diseases and pests, rotten parts and wizened parts, cleaning the vegetables through a cleaning device, and drying the vegetables in a shade place; respectively slitting the cleaned vegetables, putting thevegetables into boiling water to finish precooking and blanching for 2-4 minutes, fishing out the vegetables, draining the vegetables, and cooling the vegetables to normal temperature; and uniformlyspreading the vegetables in a tray, putting the tray on a preset drying rack, putting the drying rack into a drying box, and keeping the temperature of the drying box to be 50-85 DEG C and the dryingtime to be 4.5-5.5 hours. A rotating plate cover is driven to rotate through rotation of a rotating rod, then vegetables with different sizes and diameters are conveyed to the positions between different flow distribution plates and conveyed to the positions between rotating cylinders with different intervals along the flow distribution plates, and the vegetables with different sizes are distinguished and cleaned through the rotating cylinders with different intervals while the vegetables are screened.

The invention relates to an energy-saving printing and coating machine and an energy-saving method. In the technical scheme, a glue and ink supply system (an ink tank, a glue tank, an ink storage tank and a glue storage tank) is additionally provided with functions of heating and constant-temperature control to reduce the viscosity and to improve the solid content of the glue or ink, thereby achieving the energy-saving purpose. The invention belongs to the field of energy conservation and emission reduction.

The invention relates to an energy-saving regulating and controlling method for a combustion fan of a blast furnace hot blast stove. A traditional combustion fan is designed according to needs of maximum working stations of multiple hot blast stoves, operates at power frequency and is constant in power supply pressure; air supply amounts of each hot blast stove at different working conditions are regulated by a corresponding combustion air door of each hot blast stove; as open degrees of the combustion air doors at the most of time are small, and the air supply pressure is higher, the waste of mass power energy is caused. According to the energy-saving regulating and controlling method disclosed by the invention, under the condition that operation working conditions of the combustion fan of the original blast furnace hot blast stove are unchanged, a frequency converter is added on the blast furnace hot blast stove, and a pressure sensor is arranged on an outlet pipeline of the combustion fan; a control signal of the frequency converter, a pressure signal of the pressure sensor and an open degree signal of the combustion air door are connected to an energy-saving controller; the energy-saving regulation and control over the combustion fan of the blast furnace hot blast stove are realized by adopting a technical method of linking the air door with pressure regulation, so that proper air supply pressure is dynamically regulated and controlled according to the maximum open degree of the air door, and the aims of greatly saving energy and reducing consumption are achieved.

The invention provides a traverse feeding device of an external groove plungecut grinder. The traverse feeding device comprises a roller cross guide rail pair, a traverse feed table and a drive unit, wherein the roller cross guide rail pair comprises guide rails, a roller retainer and a cylindrical roller, and the cylindrical roller is arranged on the guide rails through the roller retainer; the drive unit comprises a stepping motor, a harmonic speed reducer and a ballscrew, wherein the stepping motor drives the harmonic speed reducer to connect the ballscrew, an output shaft of the harmonic speed reducer is fixedly connected with a shaft end of a screw of the ballscrew, a nut of the ballscrew is connected with the transverse feed table, and the nut of the ballscrew can move forth and back on the screw of the ballscrew. By means of the transverse feeding device, the deceleration with large rotation ratio can be carried out through the harmonic speed reducer so that the transverse feeding is more stable, and the transverse feeding precision is improved by controlling the stepping motor through electric programs, thus accurate feeding and reversing are realized, and the machining precision of a bearing ring is accurate; and simultaneously, the stroke of the transverse feeding is also enlarged, the purchase cost of new equipment is reduced, and the purpose of a machine tool is widened.

The invention relates to a pressure sintering and quenching integrated manufacturing process for the hard alloy. The manufacturing process is characterized in that the manufacturing process comprises the process steps that product charge into furnace, vacuum pumping (0.1 to 350Pa), temperature elevation, compression sintering (the temperature is kept at 1350 to 1600DEG C and the product is sintered for 30 to 100 minutes, and the pressure is up to 1 to 10 MPa), cooling down, heat preservation (1000 to 1300 DEG C, for 0 to 100 minutes), decompression (0.10 to 0.65MPa), quenching, cooling down, pressure relief and furnace tapping. The manufacturing process has the advantages that because the two working procedures of pressure sintering and quenching of the hard alloy are integrated into one working procedure and integrated on one device, the equipment investment can be saved on premise that the product quality is not influenced, thus the energy consumption can be reduced by above one time, the production cycle is shortened by above 4.5 times, the production efficiency is improved by above 4.5 times, the production cost is reduced by above one time, the man power is saved by one time, and the worksite is saved by about one time.

The invention discloses an automatic vertical forming machine. The machine comprises a rolled tantalum wire disc which is arranged at the position, on the side face of a vertical mounting frame, above a rack; a tantalum wire is led out of the rolled tantalum wire disc to penetrate into a one-time straightening mechanism above the rolled tantalum wire disc, then penetrate into a tantalum wire supply mechanism above the one-time straightening mechanism, and finally stretch into a mould cavity of a mould in the middle of a horizontal mounting plate in the middle of the rack; a powder shaking mechanism on the left side of the horizontal mounting plate feeds tantalum powder into the mould cavity from a powder shaking box, the tantalum powder allowing the tantalum wire to be inserted is formed through the mould, the tantalum is cut off through a cutting-off flattening mechanism on the right side of the horizontal mounting plate, the head end of the tantalum wire is flattened, and a finished product after compression moulding is fed out. According to the machine, digital control automatic machining is achieved, the machining efficiency is high, the weight and the size of a tantalum block are easy to regulate and control, the quality is better, the mass deviation is not large, one person can control multiple devices to work, manual input is reduced, the machining cost is reduced, and the good use value and economical value are achieved.