43results about How to "Reduce the difficulty of filling" patented technology

The invention relates to a casting method of a main reducer housing. The casting method includes: a precoated sand core forming process, a smelting ball iron process and a casting process, the precoated sand core forming process includes core-making of precoated sand, coated sand type assembly and sand-type steel shot filling; the smelting ball iron process includes electric-furnace smelting and charging of molten iron and treatment; the casting method is characterized by including casting, unboxing, de-gating, one-step shot blasting, grinding, secondary shot blasting and detecting. With the method, exhaust smoothness is guaranteed, generation of hole defects in the casting is avoided from the sand core exhaust process, sand hole and pore defective reject rate is controlled within 1%, shrinkage or porosity defect is avoided, the casting is stable in size and high in surface smoothness, the yield is higher as compared with that with a traditional casting method of the main reducer housing, the production process is easier to control, and production competitiveness has higher advantages.

A formation method of a contact plug comprises the steps of providing a substrate; forming an interlayer dielectric layer on the substrate; forming a high K dielectric layer on the interlayer dielectric layer; etching the high K dielectric layer and the interlayer dielectric layer orderly until the substrate is exposed to form a contact hole; continuously etching the high K dielectric layer along the contact hole until the diameter of the contact hole located at the high K dielectric layer is increased; adopting a conductive material to fill the contact hole. The formation method of the contact plug enables the formation difficulty of the contact plug to be reduced and also the quality of the formed contact plug to be improved.

The invention relates to the field of LTCC circuit substrate processing, and discloses a manufacturing method of a LTCC substrate double-face cavity structure. Rigid supporting pieces at the top and the bottom are used for providing rigid supporting during product lamination, and pressure transmission to the interiors of cavities in the front face and the back face in the lamination process is achieved by opening cavities in the rigid supporting pieces. Meanwhile, the planar soft silica gel sheets are used for replacing filling protection objects such as filling embedded blocks and silicone rubber male dies on the front face and the back face, all that is needed is to spread the whole face, operation is extremely easy, alignment and embedding problems do not need to be considered, the filling difficulty of the filling protection objects is greatly reduced, and good process stability is achieved. According to the forming method, a traditional LTCC lamination technology is not changed, high interlayer alignment precision of the product can be obtained while good double-face cavity quality and high flatness of the substrate are guaranteed, and manufacturing of the high-performance LTCC substrate is achieved.

The invention relates to a filling device, in particular to a bagged washing powder filling, sealing and packaging device. The bagged washing powder filling, sealing and packaging device is high in working efficiency, consistent in filling amount and capable of avoiding waste. The provided bagged washing powder filling, sealing and packaging device comprises a base plate, a conveying mechanism anda filling mechanism, wherein a fixing seat is arranged on one side of the top of the base plate, the conveying mechanism is arranged at the center of the top of the base plate, and the filling mechanism is arranged on the side, away from the conveying mechanism, of the fixing seat. An incomplete tooth gear and a first circular gear are meshed with each other to achieve intermittent conveyance ofwashing powder packaging bags. A fan-shaped material-discharging barrel rotates and cooperates with a funnel material-discharging opening to achieve intermittent filling of washing powder.

The invention relates to the field of spiral bevel gears, in particular to the field of precision forging of spiral bevel gears. The precision forging device comprises a die set, a convex die, a toothed die, a lower die, an elastic part, a rack, a straight toothed spur gear, a driving straight toothed bevel gear and a driven straight toothed bevel gear, wherein the die set serves as the main body for connecting the parts, the lower die is arranged under the toothed die, the convex die is arranged on the upper part of the toothed die, the lower die, the convex die and the toothed die are closed to form a hermetic cavity, a retaining mechanism is arranged between the driven straight toothed bevel gear and the toothed die to enable the driven straight toothed bevel gear to only drive the toothed die to rotate in one direction, the driving straight toothed bevel gear is meshed with the driven straight toothed bevel gear and is coaxially connected with the straight toothed spur gear, the straight toothed spur gear is meshed with the rack, and the elastic part is arranged above the rack. The precision forging device and the precision forging method realize that the toothed die only rotates during demolding and does not rotate during die assembling and forge piece forming, so that the die filling difficulty and demolding difficulty after forming of a spiral bevel gear in the precision forging process are reduced; the purposes that a preformed blank is located and locked during die assembling, and a finished forged piece does not rotate along with the toothed die during die splitting are realized.

The invention provides a through hole manufacturing method beneficial to filling. An etch stop layer, an inner layer dielectric layer and an antireflection layer are deposited on the surface of a semiconductor device in sequence; a first through hole is etched in the antireflection layer, the inner layer dielectric layer and a part of etch stop layer; the bottom of the first through hole is etched to reach a silicon dioxide layer to form second through hole; the second through hole is filled with an antireflection material; a third through hole, the outlet caliber of which is greater than that of the second through hole, is photo-etched; the bottom of the third through hole is etched to reach the silicon dioxide layer of the semiconductor device to form a fourth through hole; the residual antireflection material in the fourth through hole is removed to form a fifth through hole; and the fifth through holes is continuously etched. According to the through hole manufacturing method provided by the invention, the key dimensions of the upper part through holes are enlarged to form a through hole appearance with a relatively large opening, thereby reducing negative influences to the subsequent process caused by high-aspect ratio, further lowering through hole filling difficulty caused by subsequent metal tungsten, and enlarging the subsequent process window.

The invention discloses an operating table of a laboratory incubator for placing embryos of flocks and herds. The operating table comprises a base and a platform arranged on the base, wherein the baseis provided with a cavity, a gas storage cylinder is arranged in the cavity, a door plate is rotatably connected onto the sidewall of the cavity, a carrier block is arranged in the cavity, a mountinggroove matched with the gas storage cylinder is formed in the carrier block, roller wheels are arranged at the bottom of the carrier block, first movement grooves matched with the roller wheels are formed in the bottom of the cavity, a bevel face is formed at one end of each first movement groove, and a first connecting pipe communicating with the gas storage cylinder is arranged on the platform.The gas storage cylinder is directly placed in the cavity, pipelines are not required to be specially laid for the gas storage cylinder, influence on utilization of space in a laboratory caused by the pipelines is avoided, the gas storage cylinder can be directly drawn out from the cavity so as to clean a cylinder body, and thus, the difficulty of cleaning of the gas storage cylinder is lowered.

The invention discloses an exercise analysis processing method, which comprises the following steps that: an extraction module obtains character information, answers and symbol information corresponding to exercises, and confirms subjects and associated chapters corresponding to the exercises by searching keywords in the character information and the symbol information; making a selective table through an analysis module; proper students are selected through the pushing module, a selective table is published to the designated students to fill in, meanwhile, the answer content of the students is recorded and obtained, and finally exercise analysis is obtained through the generation module. According to the method, students can be actively invited to participate, the system confirms chapters and subjects corresponding to exercises and sets identity codes IDs, matching retrieval of other students next time is facilitated, and repeated analysis processing is not needed; the analysis module recognizes the character information and the symbol information to automatically generate the selective table, and the table form is adopted, so that the filling difficulty of participated students is low, the filling efficiency is high, and the students can participate in the table form only by increasing little time additionally.

The present invention discloses one manufacture process capable of avoiding un-landed phenomenon caused by error aligning. The process includes providing one substrate with formed metal layer and anti-reflecting layer; forming one spin-on glass layer on the anti-reflecting layer; defining several metal wires produced through etching the metal layer, the anti-reflecting layer and the spin-on glass layer; depositing oxide layer on the substrate to cover the metal wires; and defining several embolism hole via etching the oxide layer. The spin-on glass layer may be replaced with one dye spin-onglass layer, and in this case the step of forming anti-reflecting layer may be omitted.

The invention relates to a liquid medicine vacuum negative-pressure filling tank. The liquid medicine vacuum negative-pressure filling tank comprises a horizontally-placed tank body, a vacuum negative-pressure meter, a washing interface pipe and a vacuumizing interface pipe are arranged at the upper portion of the tank body, a vent nozzle is arranged at the middle portion of the tank body, a drain outlet is formed in the bottom of the tank body, the tank body is of a cylindrical structure made of 304 stainless steel, one end of the two ends of the tank body is sealed, the other end of the tank body is a hemispheric cabinet door capable of being opened and closed, and observation sight glasses are arranged at the sealed end and the hemispheric cabinet door of the tank body; a movement support is arranged inside the tank body, a plurality of tray assemblies are arranged in the movement support in an up-and-down spaced manner, two sets of rollers are symmetrically connected to the lower end of the movement support, and a ring of taper guide groove is formed in the periphery of each roller; and a pair of taper sliding ways are arranged at the bottom of the tank body in the length direction. According to the liquid medicine vacuum negative-pressure filling tank, filling and cleaning are very convenient, filling is automatically completed, manual assisting is not needed, the filling difficulty is reduced, filling of multiple rubber pipes can be achieved at a time, and inclination, collision and extrusion of the rubber pipes in the carrying process are avoided.

The invention discloses a method for improving the filling capacity of a deep trench. Step 1, filling the formed deep trench; 2, when filling to half of the filling time required to fill the deep trench, stopping the filling first; 3, carrying out vertical implantation on the surface of the deep trench; 4, etching the surface of the injected filling material to increase the opening angle of the deep trench; and Step 5: continuing filling the deep trench in the reworked opening to complete the trench filling. The invention can realize the integrity of deep trench filling.