35results about How to "Guaranteed to be filled" patented technology

The invention provides a multifunctional automatic gap filling machine and belongs to the mechanical technical field. The multifunctional automatic gap filling machine solves the technical problems that an existing gap filling machine is complex in structure, difficult to operate and the like. The multifunctional automatic gap filling machine comprises a cart, a gap filling cylinder fixed on the cart and a storage barrel, wherein wheels of the car are connected with a rotary shaft; the rotary shaft is fixedly provided with a drive belt wheel; a driven belt wheel is rotationally connected to a fixing frame of the cart; the drive belt wheel can drive the driven belt wheel to rotate; the gap filling cylinder is vertically arranged under the drive belt wheel and comprises a cylinder body with two filling cavities and pistons arranged inside the filling cavities; the storage barrel is communicated with the two filling cavities; the lower end of the cylinder body is provided with two discharging nozzles communicated with the filling cavities respectively; through holes are formed in a bottom board of the cart; the discharging nozzles penetrate through the through holes; the two sides of the driven belt wheel are provided with push rods respectively; the hinged points of the two push rods and the driven belt wheel are symmetrically arranged along the center of the driven belt wheel; the lower ends of the two push rods are hinged to the two pistons respectively. The multifunctional automatic gap filling machine has the advantages of being simple in structure and high in construction speed.

The invention discloses a blind via filling plating method using different current parameter combinations, which belongs to the field of circuit board plating technology. The blind via filling plating method comprises the steps of (1) removing adhesive, chemically depositing copper and flash-plating copper; (2) filling a blind via and plating; (3) drying film. The step (2) specifically includes regulating a plating solution to a solution containing high copper sulfate and low sulfuric acid content; and conducting plating for three periods of time using different current densities, wherein the plating operation is conducted for 30 minutes at the first period of time using a current density of 1.5 to 2.5 A/dm<2>, for 23 to 35 minutes at the second period of time using a current density of 1.2A/dm<2>, and for 10 to 20 minutes at the third period of time using a current density of 1.5 to 2.5A/dm<2>, respectively. The blind via filling plating method provided by the invention has high processing efficiency, low cost, and high processing quality, and is used for plating and blind via filling of circuit boards.

The invention provides a threaded hole welding and repairing process. The threaded hole welding and repairing process comprises the following steps of material preparation, chambering, welding, surface treatment, drilling and tapping. According to the process, circular steel sheets are laid in an inner hole subjected to chambering to replace the bead welding quantity, bead welding in the small diameter of a thread is replaced with the circular sheets, the welding quality of the large diameter of the thread and the small diameter of the thread is guaranteed, and meanwhile it is guaranteed that the small diameter of the thread is filled with the circular steel sheets, so that positioning and construction are performed conveniently when redrilling is performed. By means of the process, the quality and efficiency of repair of a threaded hole can be improved, meanwhile welding deformation is lowered, and the threaded hole welding and repairing process is particularly suitable for welding and repairing of the deep threaded hole.

The invention relates to a novel flame resistant cable, and belongs to the technical field of cables. The novel flame resistant cable comprises a conductor and a mica tape longitudinally wrapped on the conductor, an insulating layer extruded and wrapped and an outer sheath. The novel flame resistant cable is characterized in that a glass tape for tightening the mica tape is arranged on the mica tape; an inorganic insulating powder layer is arranged between the conductor and the mica tape; and the insulating layer is extruded and wrapped on the mica tape tightened. The invention has the advantages of scientific and reasonable structure, simpleness and compactness, easy production and manufacture and improved product quality, fire resistance rating, service performance and service life. The adhesion force between the conductor and the mica tape is improved under the condition that the tensile force of a covering machine is not increased, therefore, the phenomenon that the end surface of the cable is exposed from the conductor is avoided. Inorganic insulating powder is attached to the mica tape by an organic silicon biding agent and filled in the dish of the mica tape, so that the contact area between the conductor and the mica tape is enlarged and the adhesion force is enhanced. The inorganic insulating powder is also attached to the backing material surface of the mica tape; the insulating layer is extruded and wrapped after the glass tape is tightened on the mica tape, so that the contact area between of the mica tape and the insulating layer is enlarged.

The invention discloses a preparation method for a deep trench isolation channel, aiming at the requirements of mechanical connection but electrical insulation in MEMS (Micro Electro Mechanical System) technology. The method comprises the following steps of: polishing a silicon wafer; photo-etching; performing DRIE (Deep Reactive Ion Etching) to form a deep channel 2, wherein the deep channel 2 has an inverted isosceles trapezoid shape, and an included angle theta between a side wall of the channel and vertical direction is greater than or equal to 1 degree and is less than or equal to 5 degrees; cleaning with oxygen; generating a silicon dioxide insulating layer 3 on the surface of the side wall of the deep channel 2 and the surface of the silicon wafer; and filling a polycrystalline silicon layer 4. The preparation method has the beneficial effects that: the silicon wafer is etched into the inverted trapezoidal deep trench isolation channel by using DRIE; Notching phenomenon in isotropic etching is avoided; and the filling of the bottom of the deep channel can be guaranteed. Since the deep channel has the inverted trapezoid shape, an open part is still larger than the middle part of the channel, and the situation of a gap caused by blockage of the open part is also avoided during deposition of polycrystalline silicon. Since the included angle between the side wall of an oblique channel and the vertical direction is smaller, insulating characteristic and mechanical strength of the isolation channel are not influenced, and packaging air-tightness and insulation requirement can be met.

The invention discloses a casting method and casting equipment for implementing the casting method. The method comprises the steps of S1, pouring casting liquid into a mold through a pouring gate arranged on the mold; S2, enabling the casting liquid to fully fill a casting cavity of the mold through movement of the mold; S3, cooling and solidifying the casting liquid to form a casting blank. The equipment comprises a mold, a pouring device and a movement device, wherein the mold is provided with a casting cavity and a pouring gate and the casting cavity is communicated with the pouring gate; the pouring device is used for preparing casting liquid and pouring the casting liquid into the pouring gate; the mold is installed on the movement device, the movement device is driven by a movement drive mechanism to drive the mold to move, and the casting liquid in the casting cavity fully fills the casting cavity through inertia thereof. The casting method and the casting equipment for implementing the casting method have the beneficial effects that the casting liquid in the casting cavity fully fills the entire casting cavity under the effect of inertial force through the movement of the mold under the drive of the movement device and the casting effect is good.

The invention discloses a resin hole plugging device and method for a double-sided back drilling printed circuit board. The resin hole plugging device comprises a turnover mechanism, a vacuum resin hole plugging machine and a plurality of bearing mechanisms arranged in a horizontal array mode, each bearing mechanism comprises a first bevel gear, a horizontal rod and a bearing frame which are sequentially connected, the horizontal rods are connected to the supporting rods through bearings, clamping grooves are formed in the top faces and the bottom faces of the bearing frames, and vacuum adsorption hole plates are arranged on the clamping grooves. The turnover mechanism is connected with the first bevel gears and used for rotating all the first bevel gears at the same time. The vacuum resin hole plugging machine comprises a resin injection assembly located above the bearing frame and an air pump air exhaust assembly located below the bearing frame. The resin hole plugging device can turn over the printed circuit board, and the back drilling holes in the two faces of the printed circuit board are filled with resin, so that cavities are avoided.

The invention belongs to the field of spectacle lenses, particularly relates to a processing technology for manufacturing spectacle lenses by using PLA (polylactic acid) particles, and provides the following scheme aiming at the problems that the existing technology for manufacturing the spectacle lenses by using the PLA particles is not available, the original spectacle lenses are discarded and replaced by the spectacle lenses with degrees after a spectacle frame is selected by a spectacle matching person, and the discarded spectacle lenses cause pollution and are very not environment-friendly. The preparation method comprises the following steps: S1, preheating and drying; S11, putting PLA particles into a stirrer or a vibration box; s12, water in the PLA particles is dried through a dryer, the drying time is properly prolonged, the time needed for dissolving the PLA particles can be shortened, and the working efficiency is improved. The spectacle lens made of the PLA particles can be degraded, the degradation speed is high, the situation that waste is accumulated due to the fact that the spectacle lens cannot be degraded for a long time is avoided, pollution is small, the environment is further protected, and the production cost is reduced. The manufacturing effect is good, the success rate is high, and unqualified lenses are not prone to occurring.

The invention discloses a composite lining plate and a manufacturing method thereof. The composite lining plate comprises a base body and a wear-resisting plate, the lower end of the wear-resisting plate is fixed to the upper end face of the base, the wear-resisting plate comprises a plurality of first wear-resisting layers and a plurality of second wear-resisting layers, the first wear-resistinglayers and the second wear-resisting layers are alternately arranged up and down, each first wear-resisting layer comprises a first impact-resistant net-shaped layer and first wear-resisting blocks, aplurality of first through holes are uniformly formed in the first impact-resistant net-shaped layers, the first through holes penetrate through the first impact-resistant net-shaped layers in the direction perpendicular to the upper end surface of the base body, one first through hole is correspondingly filled and fixed with one first wear-resisting block, the first wear-resisting block corresponds to the through hole in shape, each second wear-resisting layer comprises a second impact-resistant net-shaped layer and second wear-resisting blocks, a plurality of second through holes are formedin the second wear-resisting layer, the second through holes penetrate through the second impact-resistant net-shaped layer in the direction perpendicular to the upper end face of the base body, onesecond through hole is correspondingly filled with one second wear-resisting block in a fixed mode. The composite lining plate is resistant to wear and impact and long in service life.

The invention discloses a solvent-based insulating glue, a round net fetal membrane using the same and a preparation method thereof, wherein the solvent-based insulating glue comprises a main component and a diluting solvent; and the insulating glue is filled in the round net fetal membrane. The invention has the following advantages that: a glue layer has uniform thickness and smoothness after the insulating glue is coated; the insulating glue has strong metallic cohesion, high insulating property and lower than 1% of shrinkage rate during curing and solidifying, and is resistant to high temperature, acid, oxidation and electrolytic corrosion; as the embedded insulating glue of the round net fetal membrane, the insulating glue not only satisfies the required insulation effect completely, but also guarantees quality of the round net and ensures the printing smooth and the printing effect excellent; repeated use of the round net fetal membrane is more than 200 times, continuous usage time is as long as more than 60 hours, shear strength is reached to 395 KGF/cm<2>, insulating and voltage-resistant performance is 25 KV/mm, and coefficient of thermal expansion is less than 4.5*10<-5>cm/degree centigrade.

The invention discloses an adding device and adding method for copper balls or solder balls in a printed board plating line, and the adding device comprises a lead-in wire groove for leading in the copper balls or the solder balls, a plurality of adding grooves which are arranged at the lower end of the lead-in wire groove at intervals and are sequentially arranged from front to back, and a plurality of plate turning mechanisms which are correspondingly arranged at the rear sides of the adding grooves one by one, a through hole for a copper ball or a tin ball to penetrate through up and down is formed in the adding groove in a penetrating mode, an opening communicated with the through hole is formed in the position, corresponding to the adding groove, of the lead-in wire groove, and the turning plate mechanism is used for closing or opening the opening. According to the adding device, automatic adding of the copper balls or the tin balls is achieved, the situation that the whole bag of copper balls or tin balls need to be manually carried to corresponding groove bodies of a production line each time during adding is avoided, the labor intensity of workers is reduced, and the adding efficiency is improved.

The invention discloses a treatment device for the surface of a gap of a turning wall. The device comprises a slide groove formed in the top of a turning wall placement rack. A positioning part is connected into the slide groove, a polishing power part is arranged on the top of the positioning part, and an output end of the polishing power part penetrates through the positioning part. A fixing plate is connected to the top of the polishing power part, a filling part is connected to the end, away from the polishing power part, of the fixing plate, and a supporting part is connected to one sideof the fixing plate and connected with one side of the turning wall placement rack. According to the treatment device, the arranged polishing power part polishes the surface of the gap, the phenomenonthat a worker holds the small-sized turning wall part by hand when polishing the part is reduced, and the phenomenon that the palm of the worker is scratched by the wall of the gap due to slip of thehand during polishing is avoided. After polishing is ended, the filling part is used for filling the gap, which helps to guarantee that the gap of the turning wall is completely filled. Filling and polishing are performed on the same part of the gap, which helps to guarantee the accuracy of treating the surface of the gap.