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125results about How to "Suitable for small batch production" patented technology

Ultra-fine powder processing device

The invention discloses an ultra-fine powder processing device which comprises an air flow crushing mechanism, a turbine grading mechanism, a screw feeder, an automatic sack packer, an automatic controller, a bag type dust collector, an integrated platform, an induced draft fan and a gas path controller, wherein the air flow crushing mechanism connected with the turbine grading mechanism is located below the turbine grading mechanism, the feed port of the screw feeder is connected with a feed taper pipe in the air flow crushing mechanism, the bag type dust collector is connected with the turbine grading mechanism through a pipeline, the automatic sack packer is located below the bag type dust collector and the induced draft fan is connected with the bag type dust collector. The ultra-fine powder processing device can process materials in a fully-closed condition without producing dust. The ultra-fine powder processing device uses a PLC control system to intelligentize the production process and adjusts the parameters of crushing, grading and other devices according to the factory production requirements so as to meet the crushing requirements of different raw materials. The processing device is built on a stand, and the position of the processing device can be adjusted according to the factory production requirement.
Owner:SOUTH CHINA UNIV OF TECH

Preparation method for anti-settling fuel cell catalyst slurry

The invention relates to a preparation method for an anti-settling fuel cell catalyst slurry. The preparation method comprises the following steps: (1) weighing a perfluorosulfonic acid solution, isopropanol and water for mixing, then carrying out sealing, and carrying out magnetic stirring so as to form a dispersion solution; (2) mixing a catalyst with the dispersion solution, and carrying out ultrasonic dispersion so as to obtain a primarily dispersed catalyst slurry; (3) continuously carrying out high-shear dispersion on the primarily dispersed catalyst slurry by using a stator and rotor stirrer so as to obtain a secondarily dispersed catalyst slurry; and (4) carrying out homogeneous dispersion on the secondarily dispersed catalyst slurry under a vacuum condition by using a homogenizerso as to obtain a stable catalyst slurry. Compared with the prior art, the fuel cell catalyst slurry prepared by using the preparation method provided by the invention is high in stability and betterin consistency; different types of catalyst slurry can be prepared according to different fuel cell membrane electrode preparation processes; and the fuel cell catalyst slurry provided by the invention is applicable to being used in domestic fuel cell stacks.
Owner:上海亮仓能源科技有限公司

Carbon fiber winding paving variable cross-section adhesive transmission shaft and combined type mould thereof

The invention relates to a carbon fiber winding paving variable cross-section adhesive transmission shaft and a combined type mould thereof. The carbon fiber transmission shaft comprises a carbon fiber tube 1, an integrated joint 2 and the combined type mould. The two ends of the carbon fiber tube 1 are bonded on the integrated joint 2, a three-ball pin column at the other end of the integrated joint 2 is matched with a needle bearing 3 and a ball ring 4 to form constant-speed universal connection, and the needle bearing is limited by a clamp spring. A clamp 5 is in a cylindrical shape, and the mold and machining equipment are connected by the clamp 5. The combined type mould comprises a mould body 6 with the two ends being hexagon-like cross sections (including a transition section) and amould body 7 with the middle being circular cross section, and the combined type mould is positioned and matched by a groove and a boss on the mould and then connected with the cylindrical clamp 5. Acenter hole of a square block 8 is used for assisting demoulding. According to the carbon fiber winding paving variable cross-section adhesive transmission shaft and the combined type mould thereof,the design is reasonable, assembly and disassembly of the mould are convenient, the paving scheme is flexible, the problem that demoulding is difficult is solved, the material performance is sufficiently utilized, the transmission shaft and the combined type mould can adapt to different machining equipment and working conditions, the feasibility and operability are high, the weight is lowered by about 53% compared with steel, the inertia is reduced, and energy is saved.
Owner:HARBIN INST OF TECH AT WEIHAI

Corrosion resistant surface treatment method of chain parts

The invention relates to surface treatment of chain parts, and particularly relates to a corrosion resistant surface treatment method of chain parts. A Fe-Al intermetallic compound corrosion resistant coating is obtained by adopting liquid state aluminum impregnation and following diffusion treatment for parts of a chain, such as a chain plate, a pin roll, a sleeve and a roller. The process flow comprises the following steps: pretreatment, aluminum impregnation, diffusion treatment and following quenching and tempering, wherein aluminum impregnation is performed in an aluminum liquid for 1-5 minutes at 720-750 DEG C; diffusion annealing is performed for 30 minutes to 2 hours at 850-1000 DEG C in a protective atmosphere; the intermetallic compound corrosion resistant coatings with different thicknesses are obtained by adjusting the temperature and time of diffusion treatment; after diffusion treatment, oil quenching is performed, and then tempering is performed for 2 hours at an intermediate temperature of 400-450 DEG C or a low temperature of 180-220 DEG C. The method provided by the invention has the characteristics of simple and convenient process, low cost, strong binding force of the coating, adaptability to batch production of small pieces and the like, can be used for producing chains in a corrosive environment, the treated chain can replace common chains or stainless steel chains, the performance and service life can be improved, and the alloy resources can be saved.
Owner:东台市溱东科技发展有限公司 +1

Chip plastic package structure manufacturing method

The invention discloses a chip plastic package structure manufacturing method and relates to the technical field of semiconductors. The method includes the steps that a chip and height limiting blocks are attached to the surface of a PCB; the chip is arranged on the PCB in a bonding mode through a lead, the space formed by the chip, the height limiting blocks and the PCB is filled with plastic package resin, a plastic package structure is formed through press fit of a plastic package plate, and curing is performed; a plastic package plate is removed; the plastic package structure is cut to form independent plastic package devices. Due to the use of the height limiting blocks, a high-precision packaging mold is not needed, and the low-cost advantage is achieved.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI +1

Novel technique for high-frequency heat treatment of lathe tool

The invention relates to a novel technique for high-frequency heat treatment of a lathe tool. The technique comprises the following steps: (1) the lathe tool is placed into a chamber furnace for preheating, heat preservation is performed for 30 minutes at 580 DEG C in the first stage, and heat preservation is performed for 1-1.5 hours at 860 DEG C at the second stage; (2) a tool bit part of the lathe tool is heated in high-frequency induction heating equipment, the heating temperature is about 1280 DEG C-1300DEG C, after the temperature is maintained for 60 seconds, the heating is over; (3) the lathe tool is taken out of an induction coil of the high-frequency induction heating equipment, oil-quenched, cooled to 250 DEG C and then is taken out of oil, and air-cooled; and (4) tempering is performed twice at the temperature ranging from 550 DEG C to 560 DEG C, the heat preservation time is 2 hours for each time, and after quenching, the external hardness of the tool bit is 64-66 HRC, and the internal hardness is 50-55 HRC. The novel technique for high-frequency heat treatment of the lathe tool has convenient steps, the quality of the lathe tool after the heat treatment meets requirements, and the technique has the advantages of short period, low cost and the like.
Owner:SHENYANG AIRCRAFT CORP

Involute cam processing device and processing method thereof

The invention relates to an involute cam processing device comprising a clamp base which is arranged on a machine tool guide rail and a support body which is arranged on the clamp base; the support body is in a U shape; an upper top tip and a lower top tip are arranged on both side inner walls of the support body oppositely; a positioning mandrel is arranged between the upper top tip and the lower top tip; a base disc and a cam base are sleeved on the positioning mandrel; one side of the base disc is provided with a master plate; the master plate is fixedly arranged on a machine tool body; and a work pieces to be processed is arranged on the outer peripheral wall of the cam base. An involute cam processing method comprises the steps that: (1) the involute cam processing device is arranged; (2) the position of the master plate is corrected; (3) the position of the support body on the clamp base is adjusted; (4) the position of a grinding wheel is adjusted; and (5) a machine tool is started. The involute cam processing device not only has a simple structure but also does not need to preset the master plate with an involute curved surface, so that the implementation is convenient, and the involute cam processing device can be used on various machine tools.
Owner:重庆工具厂有限责任公司

Local indentator for fiber towel, and manufacturing method of indentation in specific position of the fiber towel

The invention relates to a local indentator for a fiber towel. The local indentator comprises a heating plate, a pattern plate disposed below the heating plate and tightly adhered to the heating plate, a fixed plate disposed below the heating plate and used for disposing the fiber towel, a supercharging device disposed above the heating plate and used for driving the heating plate to drop, and a temperature controller. An electrical heating element and a temperature sensor are disposed in the heating plate. The electrical heating element is electrically connected to the temperature controller. The temperature sensor and the temperature controller are electrically connected. The invention also provides a manufacturing method of indentation in a specific position of the fiber towel by utilization of the local indentator. According to the manufacturing method, the local indentation can be formed selectively in the specific position of the single fiber towel and pictorial trademarks, telephones, and the like can be printed on the fiber towel. The local indentator and the manufacturing method overcome limitation that the indentation of the fiber towel at present must be whole-area indentation. The local indentation can be formed selectively in the specific position of a single finished-product fiber towel. The local indentator and the manufacturing method are mainly used for indentation on catering moist wipes.
Owner:王立民

Full-automatic intelligent plastic plate surface drilling equipment

The invention discloses full-automatic intelligent plastic plate surface drilling equipment which comprises a box body and a clamping device. The bottom of the box body is in sliding connection with afirst lead screw. The left end of the first lead screw and an output shaft of a first motor fixedly mounted at the bottom of the box body are fixedly connected through a coupling. A base is arrangedon the surface of the first lead screw in a sleeving manner. A second motor is fixedly mounted at the front end in the base. The invention relates to the technical field of plastic processing. By means of the full-automatic intelligent plastic plate surface drilling equipment, the first lead screw is driven by the first motor to rotate, the base can move left and right along the first lead screw,a second lead screw is driven by the second motor to rotate, and the clamping device can move front and back along the second lead screw on the basis of the base; the structure is simple, and operation is convenient; the production cost is low; the full-automatic intelligent plastic plate surface drilling equipment is suitable for small-batch production; and the position of the clamping device iscontrolled through the first motor and the second motor, and the automation degree and the processing precision are high.
Owner:FOSHAN HIGH GRADE ROBOT INTELLIGENT EQUIP CO LTD

Processing method of 35W (Watt) power amplification module in the field of satellite communications

The invention provides a processing method of a 35W (Watt) power amplification module in the field of satellite communications. A microwave circuit board and an amplifier module are comprised. The processing method comprises the following steps of S1, sintering a microwave circuit board on a soldering lug; S2, eutecticizing a power amplifier chip U1 to a corresponding molybdenum-copper carrier toform a power amplifier eutectic subassembly G1; S3, sintering the power amplifier eutectic subassembly G1 and a capacitor onto the microwave circuit board; S4, cleaning the sintered microwave circuitboard by use of a gas phase cleaning machine; S5, performing gold wire bonding on the power amplifier chip U1 and the capacitor; and S6, debugging, testing, capping and marking the assembled subassembly. According to the processing method of the 35W power amplification module, the 35W power amplification module in the field of satellite communications is manufactured by virtue of the microelectronic package processing technology, and the 35W power amplifying module in the field of satellite communications has the characteristics of small size, flexible installation and high reliability and issuitable for small batch production.
Owner:HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE

Water-cooled heat sink

The invention provides a water-cooled heat sink. The water-cooled heat sink comprises a water-cooling housing, splints and water-cooling pipes, wherein the water-cooling housing is used for accommodating an energy source, and an outer groove is formed in the outer side of at least one side wall of the water-cooling housing; an inner groove is formed in the inner side of each of the splints, and the outer grooves of the water-cooling housing and the inner grooves of the splints are in complimentary shapes and are matched to form a water-cooling pipe channel; a water-cooling joint is arranged at each of the two ends of each water-cooling pipe, and the water-cooling pipes are placed in the water-cooling pipe channel; heat conducting adhesive layers are respectively arranged in the outer grooves of the water-cooling housing and the inner grooves of the splints, the water-cooling pipes are connected to the interior of the water-cooling pipe channel through the heat conducting adhesive layers, and gaps between the water-cooling pipe channel and the water cooling pipes are filled with the heat conducting adhesive layers. According to the water-cooled heat sink, the water-cooled heat sink has favorable reliability and maintainability.
Owner:RAINTREE SCI INSTR SHANGHAI
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