149results about How to "Fully exhausted" patented technology

A composite of metal and resin includes a metal piece and a resin piece combined with the metal piece. A surface of the metal piece defines a plurality of micropores including an upper portion and a lower portion, the upper portion is communicated with the lower portion, and an aperture of the lower portion is larger than an aperture of the upper portion. The lower portion includes an undercut portion. The resin piece is partially embedded into the lower portion and the upper portion of the micropores. A method of manufacturing the composite of metal and resin is also provided.

The invention discloses a method for manufacturing an X100 pipeline steel longitudinal submerged arc welded pipe which is a longitudinal submerged arc welded pipe for transporting oil and gas. The method comprises using an X100 controlled rolled steel plate, the chemical compositions by percentage are: 0.02 to 0.08 percent of C, 0.10 to 0.30 percent of Si, 1.60 to 2.10 percent of Mn, less than or equal to 0.02 percent of, less than or equal to 0.005 percent of S, 0.06 to 0.1 percent of V+Nb+Ti, 0.6 to 1.0 percent of Ni+Cr+Cu, 2 to 2.6 percent of Cr+Mo+Mn. The manufacturing process of the pipe includes: baiting, edge milling of the steel plate, prebending, molding, prewelding, internal welding, external welding, expanding, and chamfering, wherein the molding process is punching the steel plate by a JCO molding machine and bend the steel plate into a J-shape, a C-shape and an open O-shape in turn; the internal welding and the external welding are welding the internal side and the external side of the pipe by four-wire submerged arc welding. The method of the invention can mold the steel plate into a pipe much more approximate to a round shape, realizes high-speed welding and improves working efficiency, with the welding process ensuring the internal quality and external quality of the steel plate.

The invention provides a formation method for a lithium ion battery with a long storage life. An anode active substance in the lithium ion battery consists of LiNi0.7Mn0.2Ni0.1O2; the electrolyte of the lithium ion battery comprises additive consisting of vinylene carbonate (VC) and fluoroethylene carbonate (FEC), wherein the VC occupies 0.5-1% of the total volume of the electrolyte, the FEC occupies 1.5-4% of total volume of the electrolyte, and the volume content ratio FEC/EC of the FEC and the VC is above 2. The formation method comprises a staged formation technology and a staged exhaust technology, a stable SEI (Solid Electrolyte Interphase) membrane is formed, anode surface metal can prevent from being dissolved in a battery storage process, and a self-discharge phenomenon is avoided.

The invention provides a fired mold low-pressure casting process of an integral type compressor impeller. The process comprises the following steps of preparing coating with silica sol binder for fired mold casting, wherein a fireproofing surface layer and a second layer are made of fused alumina powder and sand, and a reinforced layer is made of mullite powder and sand special for fired mold casting; when coating the coating on the reinforced layer, adopting a two-time slurry staining method, i.e. firstly staining thin coating and secondly staining thick coating; and after dewaxing a shell, roasting at the low temperature of 500 DEG C, storing, and roasting at high temperature before pouring, wherein the temperature of high-temperature roasting is 1000 DEG C, the heat preservation time is 4h, and the temperature of the shell during pouring is 100-150 DEG C. The prepared shell is high in strength, low-pressure pouring can be carried out by utilizing a single shell, the pouring temperature of molten aluminum is 670-680 DEG C, the mold-filling pressure is 0.03 MPa, the mold-filling time is 10s, the solidification holding pressure is 0.35 MPa, and the holding pressure time is 5min. The integral type compressor impeller produced by adopting the fired mold low-pressure casting process is good in mold-filling and feeding effect, compact in casting tissue, good in product mechanical property and inner quality, high in production efficiency, and low in labor intensity, and has no need to be modeled through binning.

A dishwasher is provided. The dishwasher includes a tub defining a washing chamber, a lower nozzle formed in the tube to spray washing nozzle, an upper nozzle formed in the tube above the lower nozzle, a key input unit for inputting one of a lower nozzle washing course and a upper nozzle washing course, and a control unit for controlling an operation of the dishwasher according to a washing course inputted through the key input unit. When the upper nozzle washing course is selected through the key input unit, the control unit controls the dishwasher such that the lower nozzle washing course is performed for a predetermined time period.

The invention discloses a fired mold, which comprises a trumpet casting body, a mold head connected with the bottom end of the casting body and a plurality of cast bodies. The mold head is a cylinder of which the cross section is polygonal; the number of the cast bodies is the same as the edge number of the bottom of the mold head; all the cast bodies are uniformly distributed around the casting body; and the bottom of each cast body is opposite to one side wall of the mold head and is connected with the side wall through bridging. The invention also discloses a precision casting process by utilizing the fired mold. The bridge of the fired mold is connected with the bottom of the cast bodies, so metal fluid flows to the top from the bottom of a shell, the casting is full, the air exhaust is full, the one-time casting yield is improved by 20 percent, the cast product has good quality, and the qualification rate is 98 percent.

The invention provides a bottle grabbing device which is high in grabbing speed and stable in grabbing and a control method of the bottle grabbing device. The grabbing device comprises a seat body anda sucker arranged at the front end of the seat body. A ventilation hole is formed in the sucker, and a cavity communicating with the ventilation hole is formed in the seat body in the axial directionof the seat body. A negative-pressure channel and a positive-pressure channel communicating with the cavity are formed in the circumferential direction of the cavity. The negative-pressure channel communicates with the ventilation hole so that negative pressure can be formed by the ventilation hole, and the sucker can suck the bottom of a bottle so as to grab the bottle. A spindle is arranged inthe cavity in the axial direction of the cavity so as to block communication between the positive-pressure channel and the ventilation hole. The spindle is provided with an exhaust channel communicating with the ventilation hole so that the ventilation hole can recover the normal air pressure and the sucked bottle can be released. The spindle is sleeved with a piston assembly which can elasticallystretch and contract relative to the cavity when positive-pressure gas is led into the positive-pressure channel so as to block communication between the negative-pressure channel and the ventilationhole. The control method includes the negative-pressure forming step, the grabbing step and the releasing step.

A GaN field effect transistor comprise a gate electrode, a source region, a gate dielectric layer, a passivation lay, a barrier layer, a channel layer, a low-concentration trap dope buffer layer, a high-concentration trap doping buffer layer, a P-type buried layer connected to that source electrode, and a drain field plate. A P-type bury layer connected with that source electrode is located in a low-concentration trap doping buffer lay, and the drain field plate is located on the passivation layer and the gate electrode is extended. When the transistor of the invention operates at the off-state high voltage, the P-type buried layer is connected with the drain electrode so as to sufficiently deplete the carriers in the channel and the buffer layer, thereby reducing the leakage current in the buffer layer and modulating the electric field distribution between the gate and the drain at the same time. On the basis of the P-type buried layer connected to the drain, the drain field plate canfurther modulate the electric field at the drain end, and finally the withstand voltage characteristic of the device is obviously improved compared with the traditional pure gate field plate AlGaN/GaN insulated gate field effect transistor.

The invention provides a chip structure and a manufacturing method thereof. The chip structure comprises a substrate, an active region formed at the active region in the substrate, and a terminal region formed in the substrate, wherein the active region includes a logic circuit of the chip. Besides, the terminal region includes a main node encircling the active region, a plurality of filed limiting rings successively and concentrically encircling the main node, and a plurality of grooves; insulated layers are formed at the inner walls of the grooves; conductive layers are formed on the insulated layers in the grooves; and preset angles are formed between the grooves and the field limiting rings. Because the grooves with the conductive layers are arranged in the terminal region, an objective of improvement of the voltage-withstanding capability of the chip terminal can be achieved. According to the chip structure provided by the embodiment of the invention, the terminal width can be effectively reduced, the chip area and the chip cost are reduced; and the stability of the device can be substantially enhanced.

The invention discloses a composite casting system of a crank shaft box. The composite casting system comprises a base plate core, a jacket core, a main core, an end face core, an outer cast core and a pouring system. The base plate core, the jacket core, the main core and the pouring system are sequentially overlapped from the bottom layer to the high layer to form a crank shaft box sand mould structure. The pouring system comprises two rows of pouring openings evenly arranged and gates located outside the two rows of pouring openings. The two rows of pouring openings are communicated with a pouring opening cup through a flow division pouring gate and a pouring gate cup. The gates comprise hole-shaped gates located at four corners and strip gates located between the hole-shaped gates and outside the two rows of pouring gates. The composite casting system adopts a rain type pouring system in the middle of a cast piece to conduct liquid feeding pouring from a plurality of positions of a shaft seat and reduces impact of pouring to casts, floating impurities cannot be easily adhered to the cast wall or the cast core, and the pouring system is good in slag blocking effect. The main core is arranged on the upper portion of a sand mould and on the shaft seat, and the two strip gates and the four hole-shaped gates are utilized to discharge air completely. The composite casting system does not require core drying and is stable in cast piece pouring.

The invention provides a method for preparing a wear-resistant and high-temperature-resistant composite material by filling PTFE with nano BN, and relates to the technical field of oil extraction in an oil field. The method comprises the steps that nano hexagonal-phase BN is dispersed in a solvent through surfactant and then filled into PTFE, drying, mold pressing and sintering are conducted, and the wear-resistant and high-temperature-resistant composite material is obtained. According to the method for preparing the wear-resistant and high-temperature-resistant composite material by filling PTFE with nano BN, the defects that the size is small, surface energy is high, and agglomeration is prone to occur are overcome, high dispersion of nano hexagonal-phase BN in PTFE is achieved, rub resistance and wear resistance of the composite material are significantly improved, the composite material is applied to sucker-rod coupling, for the polytetrafluoroethylene composite material filled with nano boron nitride, the usage temperature can reach 160 DEG C or above, and compared with pure polytetrafluoroethylene, the wear resistance is greatly improved.

The invention discloses a pressure gel forming method for a multi-winding current transformer, and belongs to the technical field of electric manufacturing and electric equipment. According to the method, the traditional method that multiple windings are shielded respectively in a device correcting process is improved, the windings are combined and wrapped as a whole, and exhaust dead corners generated in the pouring process of the multi-winding current transformer are effectively avoided. In a transformer die preparation process, temperatures of different parts of a die are set, so that it is guaranteed that the curing process of gel materials which are injected firstly and the curing process of gel materials which are injected later basically keep consistent, and cracks generated due to an inconsistent curing contraction rate in the transformer are avoided. In the pressure gel forming process, viscosity of mixed materials is large, a certain period of time is needed when gas is exhausted from the inside of a product, and accordingly a staged material injection method is adopted. Besides, staged pressure maintaining can effectively avoid the situation that iron core magnetic permeability is reduced because of excessively large material injection pressure and accordingly error tests are not qualified, and therefore product quality and the pass percent are guaranteed.

The invention provides a high-strength anti-seepage and anti-freezing concrete electric pole. The electric pole comprises a reinforced framework and a concrete layer, wherein the reinforced framework comprises erection rings equidistantly-arranged in the vertical direction of the electric pole and longitudinal pre-stressed reinforcing bars wound by spiral ribs; a seal cover is arranged at the top end of the electric pole; each longitudinal pre-stressed reinforcing bar is shorter than the concrete layer coated outside the longitudinal pre-stressed reinforcing bar; the concrete layer at the bottom end of the electric rod is provided with a circular or square blind hole which is coaxial with the concrete layer and is filled with a corrosion-resistant material corresponding to each reinforcing bar. According to the concrete electric pole provided by the invention, the little ends of the reinforcing bars are protected in concrete and other corrosion-resistant materials in the blind holes, and the reinforcing bars are not exposed and sealed in the blind holes, so that reinforcing bars at the root of the concrete electric pole are not collided; as a protective layer is provided, corrosion cannot occur. The concrete of the concrete electric pole has the early-stage, middle-stage and later-stage strengths, so that the optimal performance of a cementitious material is achieved, and the optimal strength during the whole life cycle and durability are improved.

The invention relates to the technical field of rare earth permanent magnets, in particular to a sintered neodymium iron boron magnet and a preparation method thereof. The sintered neodymium iron boron magnet is characterized in that according to the mass percentage composition, the general formula of the sintered neodymium iron boron magnet is ReaDybFe100-a-b-c-dBcMd; Re is one or more of Pr, Nd,La, Ce, Gd and Ho; M is one or more of Co, Cu, Al, Nb, Ga, Zr, Ti and Cr; and a is larger than or equal to 27 and smaller than or equal to 33, b is larger than or equal to 1.0 and smaller than or equal to 2.0, c is larger than or equal to 0.9 and smaller than or equal to 1.1, and d is larger than or equal to 0 and smaller than or equal to 5. Through the optimized process, smelting, single hydrogen breaking and powder making are not needed, and the using amount of heavy rare earth can be reduced to 1.5wt% or even 1.2wt%, so that rare earth is more uniformly distributed in the grain boundary, and the effective utilization ratio of the rare earth is improved; and according to the sintered neodymium iron boron magnet prepared through the process, while cost is reduced, the excellent magneticproperties are achieved.

The invention relates to a cam with symmetrical profile lines, comprising an intake cam and an exhaust cam. The angle of the working section of the intake cam is 54.2 degrees, the angle of the transition section of the intake cam is 25 degrees, the radius of the arc section of the intake cam is 20.6 mm, the overall height of the profile of the intake cam is 48.09 mm, the angle from the central line of the intake cam to the central line of a key slot is 3.5 degrees, the angle of the working section of the exhaust cam is 60.5 degrees, the angle of the transition section of the exhaust cam is 29 degrees, the radius of the arc section of the exhaust cam is 20 mm, the overall height of the profile of the exhaust cam is 47.916 mm, and the angle from the central line of the exhaust cam to the central line of a key slot is 107.5 degrees. The performance indexes of a diesel engine are improved by improving the profile line of the cam. The rated power of a test diesel engine is 103Kw/2800r/min, and the power is raised from 88Kw to 103Kw at the same rotating speed; the torque is raised from 343N.m to 385N.m at the same rotating speed and the fuel consumption rate under the rated power is less than or equal to 245g/(Kw.h). Accordingly, the cam with symmetrical profile lines obviously improves the performance of the diesel engine.

A permanent magnet sintering material box consists of a box body and a box cover and is characterized in that the material box is made of tinplate. When the permanent magnet sintering material box is used for stacking materials, the sintering material box is used as an inner side material box, a material box which has the same shape as the inner side material box and a slightly larger size than the inner side material box is used as an outer side material box, and the inner side material box is placed in the outer side material box to form a double-layer material box for use. According to the permanent magnet sintering material box, the problem of sealing of the material box is solved, the problem of oxidation of sintered nd-fe-b pressed blanks during a storage process before entering a sintering furnace can be effectively prevented, and meanwhile, full air venting can be achieved during a high-temperature air venting phase; when the permanent magnet sintering material box is used for stacking the sintered nd-fe-b pressed blanks and performing high-temperature sintering aging, consistence of magnet performance is greatly improved, an oxygen content in a magnet is low, and an oxidation ratio is greatly reduced.

The invention belongs to the technical field of kitchen equipment, and particularly relates to an integrated food steaming oven. The integrated food steaming oven comprises a box body and a box cover,and a working space for storing food is formed in the box body; the box cover is connected to the box body through a hinge; a protective cover and a heating device are mounted in the working space inthe box body; a circulating fan is mounted in the protective cover; an air outlet hole is formed in the working space; a steam nozzle is mounted in the working space; a first cavity is formed in theupper portion of the box body; a water tank is fixedly mounted in the first cavity; a second cavity is formed in the rear side of the box body; a steam generator is mounted in the second cavity; a circulating water pump is mounted in the second cavity; the circulating water pump, the steam generator and the water tank are connected through water pipes; the steam generator is connected with the steam nozzle through an air pipe; and a steam discharge pipe is fixedly mounted in the second cavity. The integrated food steaming oven is simple in structure, the water tank and the steam generator canbe cleaned, and residual water is avoided.

The invention discloses a cold pressing technology of a solid-liquid hybrid electrolyte lithium storage battery, and relates to the field of solid state batteries. Through the key points of the technical scheme, the cold pressing technology comprises the following steps: step one, clamping a battery cell by using a cold pressing clamp; step two, cycling a saponification solution inside the cold pressing clamp; and step three, pressing the battery in stages. Pressing in stages while cooling is carried out by using the saponification solution in the cold pressing process is reached, so that gaspackaged in the battery in the formation process can be discharged in a gas bag, and rapid forming of the battery cell also can be realized while the quality of the battery cell is improved.

The invention discloses a pump cover and a manufacturing method thereof, and relates to the technical field of pumps. The pump cover comprises a metal skeleton structure layer and a nonmetal inner liner, the metal skeleton structure layer is provided with a groove in the side in contact with the nonmetal inner liner, the outer edge is provided with a transition structure, and the nonmetal inner liner is completely filled into the groove by heating fusing and casting molding and firmly attached to the metal skeleton structure layer. Due to arrangement of the groove and the transition structure,the tensile strength between the nonmetal inner liner and the metal skeleton of the pump cover is improved greatly, smooth blanking and fully exhausting during material casting of the inner linear are ensured, and the inner liner is avoided from defects including peeling, delamination, cracking and pores.

The invention discloses a mulberry soft can preparation method. The preparation method is characterized by including selecting fresh mulberries, removing peduncles, grading, cleaning, draining, weighing and canning; adding 18-24% of white granulated sugar and 0.4-0.6 % of citric acid into drinking water to obtain decoction, raising heating temperature of the decoction up to and keeping at 88-95 DEG C, and timely pouring the decoction into the soft cans to make sure 45-55 % of mulberry solid content reserved in the soft cans; performing impulse-type sealing to the soft cans under 95-110 KPa vacuum condition; timely putting the sealed soft cans into water bath at temperature of 83-85 DEG C for 8-10 munites; and finally, cooling, draining and putting into a heat preserved room at the temperature of 37 DEG C for 7-10 days, and packaging after 7-10 days to obtain finished products. The mulberry soft can preparation method has the advantages that the mulberries in the mulberry soft cans are convenient to eat, have full shapes, are few in nutritive losses, good in taste, high in added value of products and low in production cost and have long quality guarantee periods.

The invention discloses a fuel gas mold temperature controller. The fuel gas mold temperature controller comprises a rack and a heat conduction oil furnace. A smoke heat recoverer is arranged on the rack which is above the heat conduction oil furnace. One end of the smoke heat recoverer is connected with a smoke chamber and a smoke guiding-in chamber in a sealed mode, and a smoke reversing chamber is arranged at the other end of the smoke heat recoverer in a sealed mode. A plurality of thread smoke tubes are arranged in the smoke heat recoverer in parallel. An oil-gas separation tank and an oil overflowing tank are arranged on the rack which is above the heat conduction oil furnace. The oil-gas separation tank is located below the oil overflowing tank. The oil-gas separation tank is communicated with a coiled tube through an oil outlet tube, the oil outlet tube is arranged on one side of the oil-gas separation tank, a separation tank oil outlet tube is arranged on the other side of the oil-gas separation tank, and the oil-gas separation tank is communicated with the oil overflowing tank. The rack is further provided with an oil temperature control device. The fuel gas mold temperature controller has the benefits that the smoke heat conversion efficiency is good, oil-gas separation is sufficient and thorough, and the oil temperature control is stable and high in precision.