374results about How to "Improve yield" patented technology

The invention relates to a selective laser melting forming molten bath real-time monitoring device and a monitoring method, and belongs to the technical field of 3D printing additive manufacturing. The selective laser melting forming molten bath real-time monitoring device and the monitoring method can monitor the molten bath temperature, the shape and the area in the SLM forming process in real time, conduct online assessment on the forming precision and the laser power and feed back the result. According to the adopted technical scheme, a melting forming laser system and a pulsed laser are arranged on the top of a forming cavity, a piece of transparent glass is arranged in the center of the top of the forming cavity, a laser lens tube is arranged above the transparent glass, and the pulsed laser is connected with the laser lens tube through an optical fiber. A lifting frame is arranged in the forming cavity, lifting mechanisms are arranged on the two sides of the lifting frame, and cameras are arranged at the bottom of the lifting frame in the mode of different angles. The melting forming laser system, the pulsed laser, the lifting mechanisms and the cameras are connected with a master control system. The selective laser melting forming molten bath real-time monitoring device and the monitoring method are widely used for real-time monitoring of a selective laser melting forming molten bath.

The invention provides an added material manufacturing device and a method. The device is characterized by comprising an added material machining part, a high-speed camera part, an infrared temperature measuring part, an optical measuring part, an internal defect detecting part, an aftertreatment part and a control part, wherein the high-speed camera part comprises a camera head, which moves withthe added material machining head at the same time to obtain material image information; the infrared temperature measuring part comprises a temperature measuring head, which moves with the added material machining head at the same time to obtain material temperature distribution information; the optical measuring part detects surface defects and forming sizes of materials to obtain detecting information; the internal defect detecting part comprises a detecting head and a detecting analyzer; the aftertreatment part treats material defect areas to eliminate defects by adopting corresponding aftertreatment modes; the aftertreatment modes comprise at least one of mechanical rolling treatment, laser shock reinforcement treatment and friction stir treatment; and the control part controls all the parts to operate to obtain various information, determines the defect treatment areas, aftertreatment paths and the aftertreatment modes based on the information, and controls the aftertreatment part to perform corresponding aftertreatments.

The invention relates to a preparation method for a carbon slider used for assembling the pantograph of an electric locomotive. The preparation method is characterized by comprising the following steps: crushing and batching calcined pitch coke and artificial graphite powder; adding 3 to 5% of N330 carbon black, 0.5 to 2% of stearic acid and 20 to 35% of molten asphalt and then carrying out kneading; carrying out extrusion molding on an obtained mixture according to a certain cross section shape by using an extruder; carrying out roasting at a temperature of 830 to 900 DEG C for 260 and 320 h; after rough machining, carrying out dipping with 30 to 50% of molten copper; and carrying out polishing so as to obtain a product. The preparation method provided by the invention has the advantages of simple operation, high yield, full utilization of resources, conservation of cost, capacity of allowing high mechanical strength and wear resistance to be maintained and strong practicality.

The invention discloses a method for casting rotary axis casts of aerogenerators, which comprises the steps of mould manufacture, the manufacture of sand moulds and moulding by casting. In the step b of the manufacture of sand moulds, a top sprue (1) is used as an inlet of iron liquor, and is alternately communicated with runners; a bottom runner is communicated with an ingate communicated with a cast mould cavity; the runners are designed into a first runner (3), a second runner (4) and a circular runner (5); the ingate is designed into a plurality of radial runners (6) for communicating the circular runner (5) and the cast mould cavity; filtering apparatuses are arranged on the first runner (3) and the second runner (4), and are also arranged between each radial runner (6) and the circular runner (5); and in the step c of moulding by casting, the casting temperature is controlled from 1310 DEG C to 1350DEG C; and finally, a cast (2) is obtained. The method for casting rotary axis cast of aerogenerator has the advantages of good residue blocking effect and low production cost.

The invention discloses a preparation method of a refining agent for melting an aluminum alloy section doped with plant ash. The refining agent is prepared from the following materials in parts by weight of 6-8 parts of potassium chloride, 4-6 parts of wood ash coated particles, 3-5 parts of calcium fluoride, 3-5 parts of sodium nitrate, 5-8 parts of graphite powder, 8-10 parts of sodium fluorosilicate, 3-5 parts of sodium sulfate, 5-8 parts of aluminum chloride, 3-5 parts of potassium carbonate, 8-10 parts of attapulgite, 5-8 parts of NaBF4, 3-5 parts of sodium chloride, 5-8 parts of potassium sulphate, 8-10 parts of Na2TiF6, and 5-8 parts of NaF. High-quality aluminum alloy melting liquid is obtained by treatment of the refining agent. Therefore, the aluminum alloy melting liquid is used for casting production; the yield is obviously improved; especially the porosity in a cast is reduced by 1-2 degrees; effective control is carried out; an air hole is not generated at the surface of the cast; trapped oxide is obviously reduced; and oxide inclusion is at about two grades while the mechanical property of the cast is obviously improved.

A preparation method of a double-sided metallized polypropylene capacitor film includes steps: firstly, preparing raw materials; secondly, using an extruder to extrude cast sheets; thirdly, using chilling rollers and air showering for cooling; fourthly, longitudinally stretching; fifthly, transversely stretching; sixthly, performing thickness measurement, edge cutting and corona treatment; seventhly, winding; eighthly, aging for the first time; ninthly, slitting; and tenthly, aging for the second time. The polypropylene capacitor film is subjected to double-side corona treatment during coronatreatment, the polypropylene capacitor film subjected to double-side corona treatment is further subjected to double-side metallized coating in the subsequent evaporation procedure, and since two sides of the polypropylene capacitor film are coated with metallized coatings, the thickening of the metallized coatings is not needed while the packaging size is not increased and the high-current bearing capacity of a prepared capacitor is not increased. In addition, the thickness of the double-sided corona polypropylene capacitor film with double-side metallized coatings is equal to that of an original polypropylene capacitor film with a single-side metallized coating, so that the problems of nonuniform thickness and proneness to disjointing are avoided, yield is high, and prepared capacitors are low in cost.

The invention discloses an emulsified lipstick and a preparation method thereof, and belongs to the technical field of cosmetics. The emulsified lipstick is prepared from the following components in percentage by weight: 51 to 71% of skin moisturizer, 13 to 17% of hardener, 4 to 10% of brightener, 2 to 3% of polyglycerol-2 triisostearate, 0.5 to 1% of dipoly-pentaerythritol tri-polyhydroxyl stearate, 2 to 5% of phytosterol/octyl dodecyl lauryl glutamate, 2 to 5% of water, 2.01 to 4.02% of water-soluble moisturizer, and 0.5 to 2.5% of water-soluble plant extract. The emulsified lipstick has the advantages that by adopting two types of emulsifiers, and matching with the ultrasonic demulsifying technology, the production of air bubbles due to evaporation of water phase is avoided, and the finished rate is improved; the moisturizer, cornflower flower extract, ginko leaf extract and golden chamomile flower extract can be added into the lipstick, so that the lip wrinkles can be lightened, the skin elasticity is improved, the toxicity is effectively removed, the circulation of micro-blood vessels is stimulated, the skins are nourished, and the functions of the lipstick are widened; under the synergistic function of glycerin, hyaluronic acid and polyquaternium-51, the natural skin bionic moisturizing film is formed, and the lip skin is moisturized and smooth.

The invention relates to puffed lentinus edodes free from a sulfur peculiar smell, and a production technology of the puffed lentinus edodes, and discloses the puffed lentinus edodes and a production method thereof. The sulfur peculiar smell is removed from the lentinus edodes; the technology is simple; the obtained lentinus edodes is low in contractility; the time required by rewatering soaking is short; and a nutrition preservation rate is high. The puffed lentinus edodes is prepared by a pretreatment, predrying, peanut oil leaching and varying temperature differential pressure puffing and drying method. In a leaching process, the time is short, a finished product rate is high, and nutritional ingredients of the lentinus edodes are preserved to the greatest extent; in a puffing process, moisture in a tissue of the lentinus edodes is instantly vaporized and dissipated, so that a raw material expands intracellularly or intercellularly to form a uniform honeycomb structure, and the puffed lentinus edodes has good crisp property, can be rapidly molten in a mouth after eaten, and is good in taste and easy to digest; and in addition, the uniform and porous texture allows the puffed lentinus edodes to absorb water easily, and the puffed lentinus edodes has good rewatering property.

The invention relates to a board balance reconditioning chamber and a method for reconditioning boards. The inside of the board balance reconditioning chamber is provided with a dehumidifier, a humidifier and temperature control equipment, and the middle part of the board balance reconditioning chamber is provided with an air flow guide device. The method for reconditioning boards comprises the following steps: 1) piling boards in the board balance reconditioning chamber; 2) adjusting the temperature and humidity of the board balance reconditioning chamber and determining the board processing time according to the preset water content range of the boards to balance the water content of all parts of the boards and to release the inner stress of the boards in a constant temperature and humidity environment; and 3) determining the water content of the boards and completing the reconditioning treatment when the water content of the boards reaches a preset value. The invention provides the constant temperature and humidity environment with flowing air to balance the water content of all parts of the boards, to release the inner stress of the wood fibers and to reduce the drawbacks of wood floors such as deformation and bending, thereby improving the percentage of cut-turn and the stability of the quality of the wood floors.

The invention discloses a full-screen display module. The full-screen display module comprises a cover plate, a liquid crystal display unit, a backlight and a front-facing camera, wherein the liquid-crystal display unit is fixed to the lower end face of the cover plate; the backlight is fixedly arranged on the lower end face of the liquid crystal display unit; the liquid crystal display unit comprises an upper polarizer, a liquid crystal display panel and a lower polarizer which are overlapped on the lower end face of the cover plate in sequence; the lower polarizer and the backlight are provided with a camera mounting hole corresponding to a light entrance area; an inner ring of the camera mounting hole of the backlight is provided with a black sealing compound; and the front-facing camera is fixed in the camera mounting hole through the black sealing compound, so that the front-facing camera can be hidden in a display area and images can be acquired normally. Thus, the stabilizationperformance of the front-facing camera is improved while full-screen display is realized.

The invention discloses an sintering method for rear earth tungsten electrode billets. The sintering method comprises: firstly enabling electrode compositions to accord with the weight ratio of a final product, adding one or multiple of rear earth oxides such as La2O3, Y2O3, CeO2 and ZrO2 into a tungsten billet; sending the molded rear earth tungsten electrode billet into the chamber of a medium-frequency sintering furnace, and introducing hydrogen flow into the chamber; starting the medium-frequency furnace, heating to 2000-2400 DEG C with a temperature-raising speed of 100-300 DEG C/h, and setting two or more thermal-insulation points according to material condition, and setting the thermal-insulation time of each thermal-insulation point to be 2-4 h; and switching off the power supply of the medium-frequency sintering furnace, when the temperature of the chamber is reduced to normal temperature, taking out the sintering body. By employing the sintering method, uniform-physical-property high-yield rear earth tungsten billets can be supplied in large scale with high efficiency.

A liquid crystal panel manufacturing device and liquid crystal panel manufacturing method, capable of manufacturing liquid crystal panel with excellent performance and high yield by inhibiting ultraviolet irradiation from a wavelength range possibly causing influence on the liquid crystal panel performance. The provided liquid crystal panel manufacturing device comprises a processing chamber (50)for processing to-be-processed substrate (10) sealed with liquid crystal (17) containing light responsiveness material (18); a plurality of lamps (52) disposed in the processing chamber (50), irradiating ultraviolet towards the to-be-processed substrate (10) to lead the light responsiveness material (18) for reaction, in order to form orientation part (21, 22) inside the to-be-processed substrate(10); and filters (53) aligning to the lamps (52), and at least inhibiting the ultraviolet transmission of which wavelength ranges from 320 to 360 nm.

The invention relates to the field of machining process for metal shell surface protecting layers, in particular to a soft rubber molding process for a metal shell surface, which is characterized in that adhesives are coated on the metal shell surface, a soft rubber protecting layer is added to the outer side of the adhesives by means of soft rubber injection molding or silicon rubber heating vulcanization, and finally soft paint is coated on the obtained product. Besides, metal shells include notebook computers, tablet computers, mobile phones, articles for daily use and the like. The soft rubber molding process has the advantages that the metal shell surface is covered with the soft rubber protecting layer by the aid of soft rubber materials, compared with a metal part with appearance needing back-end processes of anodic treatment and/or painting and the like, the metal shell surface is low in cost, high in yield and simple, convenient in process and the like, the metal shell surface protecting layer of the manufactured product is more environment-friendly, soft in hand feeling and more attractive in appearance, the soft rubber and the metal shell surface are adhered by the adhesives so that the manufactured metal shell surface protecting layer is firmer and close, and the soft paint is coated on the outer side of the soft rubber so that the product is dirt-resistant, scratch-resistant and smoother in hand feeling.

The invention belongs to the technical field of steel production methods, and particularly provides a method for producing 4Cr5MoSiV1 mold steel by continuous casting electroslag. The method comprises the following steps that an electric-arc furnace smelts molten steel, a ladle refining furnace refines the molten steel, a vacuum degassing furnace refines the molten steel, continuous casting 235mm x 265mm medium square billet is conducted, electroslag remelting is conducted, heating rolling is conducted, and annealing is conducted. The molten steel component is controlled by, in mass percentage, C: 0.37-0.43%, Mn: 0.30-0.50%, Si: 0.90-1.20%, P: <0.025%, S: 0.010%, Cr: 4.80-5.50%, Mo: 1.20-1.50%, V: 0.90-1.10%, Cu: <0.25%, Ni: <0.25%. The balance is iron and unavoidable impurities. The method for producing 4Cr5MoSiV1 mold steel by continuous casting electroslag uses technology of the continuous casting billet + electroslag remelting + rolling replacing forging to manufacture and produce 4Cr5MoSiV1 mold steel, the comprehensive mechanical properties of the 4Cr5MoSiV1 mold steel are ensured, the production rate of the 4Cr5MoSiV1 mold steel is improved, so that production costs are reduced and production efficiency is increased.

The invention discloses a method for laminating a solar battery module, which comprises the following steps of: (1) firstly, laying non-adhesive cloth on a heating table of a laminator; (2) secondly, placing the laminated semi-product of the solar battery module on the non-adhesive cloth on the heating table; (3) thirdly, providing four cushioning bars on the four sides of the semi-product of the solar battery module, wherein the distance from each cushioning bar to the edge of the semi-product of the solar battery module is 10 to 20mm; (4) fourthly, laying non-adhesive cloth on the semi-product of the solar battery module and the cushioning bars; and (5) fifthly, vacuuming, warming and pressurizing the materials into a whole in the cavity chamber of the laminator to obtain the solar battery module. In the laminating process, the concentrated stress points are transplanted to the cushioning bars, so that the phenomena of adhesive failure, bubbling, battery sheet displacement, module damage and the like are avoided; the yield is improved; and the production cost is greatly reduced.

The invention discloses an effective control method for the pitted surface of a plain carbon steel/Nb-containing steel plate of 20-30 mm thickness. A steel plate billet is rolled into a finished plate of 20-30 mm thickness through the processes of heating, high-pressure water descaling, rough rolling, finish rolling, ACC laminar flow cooling, straightening, cooling, finishing and storage. The control method includes the steps that a three-stage heating mode of preheating, heating and uniform heating is adopted for the steel plate billet, the tapping temperature ranges from 1050 DEG C to 1135 DEG C as required, and high-pressure water descaling pressure ranges from 20 MPa to 23 MPa; two-stage controlled-rolling is adopted, rough rolling is conducted three to five times for descaling, finish rolling is conducted two to four times for descaling, and the finishing rolling temperature is controlled between 820 DEG C and 880 DEG C; an ACC laminar flow mode is adopted, and the finishing cooling temperature is controlled between 680 DEG C and 800 DEG C. A 250 mm*(1600 mm, 1800 mm and 2100 mm)*(2300-3300) mm blank is adopted for the steel plate billet. According to the control method, low-temperature heating and cooling after rolling are adopted; by means of process optimization, the occurrence probability of the pitted surface is lowered, the yield of plates of middle thicknesses is increased, production cost is reduced, and product profits are increased.

The invention relates to an enhanced flame-retardant PBT composite material for a high glowing filament and a preparation method thereof. The enhanced flame-retardant PBT composite material for the high glowing filament comprises the following components by weight percent: 35-45% of polybutylene terephthalate, 10-20% of compound brominated flame retardant, 10-20% of compound halogen-free flame retardant, 0.5-2% of synergistic flame retardant, 20-35% of glass fiber, 2-5% of toughener, 0.3-0.5% of antioxidant and 0.2-0.5% of lubricant. The invention also provides the preparation method of the enhanced flame-retardant PBT composite material for the high glowing filament. The glowing filament with enhanced flame-retardant PBT composite material in an IEC60695 standard has the temperature of 850 DEG C from 750 DEG C, thereby satisfying the requirements of customers for higher and higher temperature of the glowing filament; and meanwhile, the enhanced flame-retardant PBT composite material has the advantages of high yield, excellent mechanical properties, favorable flame retardancy and the like, and can completely satisfy the application in the fields of electronic and electrical appliances such as capacitor shells, load break switches, motor shells, socket connectors, coil formers and the like, home appliances, automobiles and the like.

The invention relates to the cold tandem rolling technology. The invention solves the problem that the thickness is seriously out of tolerance caused by the traditional manual control welding line thickening method and provides a method for rolling a welding line under automatic control. The technical scheme in the method can be summarized as follows: when the welding line passes through each rack, a gap between rollers and speeds of the rollers are changed by adopting an automatic control way, thus the welding line is thickened and the tensile force of strip steel is maintained to be constant. The method provided by the invention has the beneficial effects that the strip breakage rate of the welding line is reduced and the rate of finished products is improved, and the method is applicable to a cold tandem rolling machine set.

The invention discloses a device and method for measuring the warping degree of a substrate, a touch screen and a manufacturing method of the touch screen. The measuring device comprises at least one laser device and charge coupling elements which correspond to the laser devices in a one-to-one mode and are fixedly connected with the laser devices. The measuring device is moved in a plane parallel to the surface, to be measured, of the substrate, lasers emitted by the laser devices irradiate multiple measuring points of the surface to be measured, and the lasers are received by the charge coupling elements after being reflected at the measuring points. According to the position offset of the lasers irradiating to the laser incidence faces of the charge coupling elements, the distance of a reference point, the preset incident angles of the lasers emitted by the laser devices and the position relation between the laser devices and the corresponding charge coupling elements are preset, and the warping degree of all the measuring points can be obtained rapidly and accurately. In the manufacturing process of the touch screen, the warping degree of a touch panel and the warping degree of a display panel are measured through the measuring device, the warping degrees of the two panels are controlled strictly, only the two panels with smaller warping degrees are attached to each other, and the yield of the touch screen can be improved.

The embodiment of the invention discloses a method for coating a polarizing film of an organic light-emitting diode (OLED) display. The OLED display comprises an OLED device. The method mainly comprises the following steps of: coating an adhesive on the surface of the polarizing film; attaching the surface of the polarizing film, on which the adhesive is coated, to the OLED device; and heating or irradiating the adhesive, so the polarizing film is tightly attached to the OLED device. The embodiment of the invention also discloses the OLED display. The method and the OLED display have the advantages that bubbles can be prevented from being generated in a polarizing film coating process, and the yield of the polarizing film coating process is improved.

The embodiment of the invention discloses an organic light-emitting display device and a manufacturing method thereof. The device comprises a first substrate, a second substrate, a TFT wiring layer, an organic light-emitting layer, a first insulation layer and a touch electrode layer, wherein the first substrate and the second substrate are arranged oppositely; the TFT wiring layer is arranged on the side, facing the second substrate, of the first substrate; the organic light-emitting layer is arranged on the surface of the TFT wiring layer; the first insulation layer is arranged on the surface of the organic light-emitting layer; the touch electrode layer is arranged on the surface of the first insulation layer. Thus, in the organic light-emitting display device, the touch electrode layer is arranged between the first substrate and the second substrate, the organic light-emitting layer and the touch electrode layer are insulated with each other through the first insulation layer, and therefore the technology that an OLED display panel is assembled with a touch panel in the prior art is avoided; accordingly, the problem that defective products are generated due to scratching, touching and the like in the assembly process of the OLED display panel and the touch panel is solved, and the yield of organic light-emitting display devices is increased.

The invention provides a wiring structure, a display substrate and a display device, and belongs to the technical field of display. The wiring structure comprises a plurality of hollowed units which are connected in series, and each hollowed unit comprises a hollowed area and a non-hollowed area, wherein the hollowed areas of any two adjacent hollowed units are at least partially overlapped, and the non-hollowed areas are not overlapped. Compared with a linear wiring structure, when the wiring structure is bent or stretched or warped, stress can be released through the hollowed areas of the hollowed units so as to avoid the situation that the wiring structure breaks and consequently a device on a substrate with the wiring structure fails. Besides, as the hollowed areas of any two adjacent hollowed units are at least partially overlapped, namely, the area of the connecting portion of the two hollowed units is large, it can be effectively avoided that the connecting portion of the two hollowed units breaks, and thus the yield of the wiring structure is guaranteed.

The invention provides a liquid nozzle and a manufacturing method thereof. The manufacturing method of the liquid nozzle comprises the following steps that an insulating material layer used as an oscillating plate is arranged on the common electrode surface of a piezoelectric element; a first thin layer made of optical imaging high molecular materials is arranged on the surface of the insulating material layer, and an area determined as a liquid cavity in the first thin layer is exposed for the first time; a second thin layer made of optical imaging high molecular materials is arranged on the surface of the exposed first thin layer, and an area determined as a liquid spraying hole in the second thin layer is exposed for the second time; and developing liquid is utilized to develop and remove unexposed materials from the first thin layer and the second thin layer, so as to form the liquid cavity and the liquid spraying hole. According to the liquid nozzle disclosed by the invention, integrated forming of the liquid cavity and the liquid nozzle is implemented through double exposure and one-time development, the strength of the liquid cavity and the rate of finished products are increased, and the liquid nozzle is favorable for improving the quality of printing equipment.

The invention discloses a technological method for the symmetrical paired universal rolling of deformed steel. The technological method comprises the following steps of: (1) roughly rolling a raw blank into an intermediate blank of a double-connected rolling piece in a rough rolling unit; (2) cutting off irregular deformed head and tail parts of the intermediate blank by using a sawing and shearing facility; (3) simultaneously carrying out fine rolling on the intermediate blank of the double-connected rolling piece in a fine rolling unit to obtain a double-connected final-section sectional bar; and (4) cooling the rolled double-connected final-section sectional bar to room temperature, and subdividing and straightening the double-connected final-section sectional bar to obtain single final-section sectional bar products through subdividing and straightening facilities. The technological method disclosed by the invention is wide in application range and suitable for rolling various deformed steels, solves the existing problem of post-cooling bending of the single rolled deformed steel, simultaneously optimizes a rolling production line, reduces energy consumption of production, equipment loss and production cost, and improves the production efficiency, and in addition, the rolled piece is good in surface quality, small in internal stress, and good in comprehensive machining quality and mechanical performance.

The invention discloses a strip steel C warping control method. The method comprises the following steps of: detecting the warping amount of a strip steel; calculating the warping height value; performing displacement processing to obtain corresponding warping height value for feedforward control; calculating the controlled cutting depth of an anti-wrinkle roller; and performing feedforward control according to the cutting depth so as to control the strip steel C warping by changing the rolling wrap angle and the extension difference between the upper and lower surfaces of the strip steel; and therefore, the method ensures the plate profile and quality of the strip steel and improves the yield of the strip steel.

The invention provides a method for manufacturing a resistance-type touch screen. The method comprises the following steps of: preparing a conductive optical film; and preparing conductive glass. The invention also provides the resistance-type touch screen which is manufactured by using the method. The resistance-type touch screen consists of the conductive optical film and the conductive glass, wherein the conductive optical film and the conductive glass are bonded by using a double-sided adhesive tape. By adoption of the method provided by the invention, production flow is simplified, yield is improved, and labor time is saved, so that the aim of reducing production cost is fulfilled. The resistance-type touch screen has a two-layer structure and a decoration effect, the conductive optical film serves as an upper electrode, and the conductive glass serves as a lower electrode and a supporting plate. By adoption of the method provided by the invention, the conductive optical film has a conductivity function and the appearance of a decoration part, and can be colorful according to an appearance requirement, so that the conventional decoration parts which are required to be individually arranged are eliminated.

The invention discloses a propping agent for a resin coating film and a preparation method thereof. The propping agent comprises an aggregate, a resin, a curing agent and a dispersing agent, wherein the dosage of the resin is 1%-10% of the weight of the aggregate; the dosage of the curing agent is 0.5%-5% of the weight of the aggregate; and the dosage of the dispersing agent is 0.2%-2% of the weight of the aggregate. The propping agent for the resin coating film provided by the invention has the functions of allowing oil gas to smoothly penetrate and preventing water from penetrating through the propping agent, so that the separating effect of oil gas and water is enhanced by the functions and the oil extraction cost is lowered; due to the excellent hydrophobic property of the resin film, the propping agent has excellent water resistance, the anti-breaking capability of the propping agent is increased and the long-term flow-guiding effect is good; a triple film coating technology is adopted by the invention and the calcium stearate is taken as a dispersing agent, so that the quality is greatly increased, the yield is increased to above 80%, the cost is greatly lowered and the production efficiency is increased; and the preparation method provided by the invention is simple, the product yield is high and the breakage rate of the product is obviously reduced.

The invention discloses a manufacturing method of a molybdenum rotating target material for sputtering deposition. The method includes the steps that high-purity molybdenum powder is evenly filled into a tubular mold, and then is prepared into a tubular powder molybdenum billet by means of extrusion forming; the tubular powder molybdenum billet is put into a cold isostatic press to be pressed, and a molybdenum billet is obtained after isostatic pressing compaction is completed; the formed molybdenum billet is put into a vacuum sintering furnace to be sintered, the sintered molybdenum billet is put into the sintering furnace, hydrogen is connected in for protection, and the molybdenum billet is taken out for repeated hammer forging after heating and heat preservation are completed; the forged molybdenum billet is put into a vacuum annealing furnace for annealing, and then the molybdenum billet is cooled to an indoor temperature along with the furnace; and after the annealed molybdenum billet is machined, the molybdenum rotating target material can be obtained. The molybdenum rotating target material obtained through the method has the characteristics that the relative density is high, machinability is good, the inner grain structure of the target material is uniform and small and tissue defects are avoided.

The invention discloses a manufacturing method of a high-precision and high-reliability NTC thermistor chip, which comprises the following steps of: 1) weighing corresponding metal oxides according to a chemical formula Mn3-x-y-zNixFeyCozQtO4, mixing, ballmilling, and roasting into thermal sensitive ceramic pre-powder A, 2) uniformly mixing the thermal sensitive ceramic pre-powder A and nano thermal sensitive ceramic pre-powder B into a mixture, preparing the mixture into slurry, 3) filter-pressing and forming the slurry to a green body, drying and isopressing the green body, 4) conducting microwave sintering on the body obtained in Step 3), and 5) slicing an obtained sinter cake, placing an electrode and conducting heat treatment in a shielding gas atmosphere, wherein the mass percent of the B in the mixture is 5-75wt%, and the solid content of the slurry is 70-80wt%. The 1% yield of the prepared chip is improved greatly, and the reliability is also improved obviously.

In a cold rolled material production equipment, a strip storage device (50) is provided. The strip storage device (50) is disposed between connection means (23) and rolling machines (10a, 10b). The connection means (23) connects the tail end of a preceding coil (25b), disposed on the exit-side of an unwinding device (21a) for unwinding a hot rolled coil after pickling, to the leading end of a following coil (22a) unwound from the unwinding device. The strip storage device (50) stores a strip S for continuously carrying out rolling by the rolling machines during the connection of the precedingcoil to the following coil by the connection means. The rolling machines (10a, 10b) roll the preceding and following coils, in such a state that the tail end of a preceding coil (25b) has been connected to the leading end of a following coil (22a), unidirectly in a continuous manner. The cold rolled material production equipment further comprises a strip cutting device (28) for cutting the strip into desired length, a winding device (24) for winding the rolled coil, transfer means (30) for transferring the coil extracted from the winding device to unwinding devices (21a, 21b) for repeatedly rolling the coil until the product sheet reaches a desired thickness, and a rolling speed control unit (40) for controlling the rolling speed during connection of the preceding coil to the following coil so that the rolling speed is lower than the steady rolling speed.