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42results about How to "Eliminate air bubbles" patented technology

Intelligent transfusion device and operation method thereof

The invention discloses an intelligent transfusion device and an operation method thereof. The intelligent transfusion device comprises a transfusion bottle fixing mechanism, a bottle plug piercing mechanism, a dynamic transfusion liquid monitoring/controlling mechanism, a transfusion liquid temperature-control mechanism, an automatic needle plugging and unplugging mechanism, a central receiver and central control units corresponding to the bottle plug piercing mechanism, the liquid dynamic monitoring/controlling mechanism, the liquid temperature-control mechanism and the automatic needle plugging and unplugging mechanism. The intelligent transfusion device has the advantages that by the intelligent transfusion device, automatic integration in a transfusion process is realized; transfusion bottles can be automatically changed; the dripping speed, the flow speed and liquid bubbles can be monitored during transfusion; the dripping speed and the flow speed of transfusion liquid are controlled and the air bubbles can be timely eliminated; a transfusion tube can be heated in a transfusion process; the heating temperature is automatically controlled; a needle can be plugged or unplugged automatically under the control of a manipulator; and various stages of a transfusion process are controlled by controllers which are used for controlling the various units through the central receiver.
Owner:深圳煜睿医疗设备有限公司

Initiative exhaust method for injection mould and vacuum valve device for injection mould

The invention relates to an initiative exhaust method for an injection mould and a vacuum valve device for the injection mould, relating to an injection mould. The vacuum valve device is provided with a valve core, a valve core control rod, a piston rod and a cylinder. After the mode locking of the injection mould, an external compressed air source is utilized to drive the vacuum valve device, an exhaust channel is opened, and then an external air extractor is communicated with the cavity of the injection mould through the exhaust channel. The external air extractor starts to work, the cavity of the injection mould is pumped to a negative pressure state, and then the external compressed air source is utilized to drive the vacuum valve device for the injection mould and close the exhaust channel. Fusing plastic is injected into the cavity, and after the exhaust channel of the vacuum valve is closed, air is continuously exhausted through a tiny gap between the vacuum valve device and the cavity of the injection mould. The injection mould is opened, and a moulding piece is taken out, the external compressed air source is utilized to carry out back flushing, and residues and impurities in the vacuum valve device for the injection mould and the exhaust channel are cleared. After the mould is closed, the next work circulation is performed.
Owner:XIAMEN UNIV

Coating on surface of cylinder ring and manufacturing method thereof

The invention discloses a coating on a surface of a cylinder ring and a manufacturing method thereof. The coating on the surface of the cylinder ring is characterized in that a formula of the coating comprises the following components: 78-85 parts of fluororubber, 15-25 parts of reinforcing agent, 8-15 parts of active magnesium oxide, 2-6 parts of vulcanizing agent, 4-8 parts of calcium hydroxide and 1-10 parts of pigment. The method for manufacturing the coating is characterized by comprising the following steps: mixing sheets, preparing adhesive cement, coating by adopting a silk-screen method, drying and vulcanizing. Compared with the prior art, the formula of the coating has high adhesive firmness, bubbles do not exist on the coating, the coating can be prepared into various different colors according to the requirements, and the waterproof and leakproof effects can be effectively achieved. Moreover, according to the method for manufacturing the coating, the process is simple and stable, the silk-screen method is adopted, and a phenomenon that the bubbles occur in the coating is eliminated, so that the adhesive firmness between the coating and the sealing gasket is high, and the technical effect of achieving better waterproof and leakproof effects is achieved.
Owner:岱山县同道密封件厂

Pre-embedded full hole plugging method of printed circuit board

The invention discloses a pre-embedded full hole plugging method for a printed circuit board, belongs to the technical field of circuit board manufacturing. According to the invention, a mode of pre-embedding a hole plugging rod in a through hole is innovatively adopted, then a printed hole plugging material is used for filling, and in the heating and curing process, heat is used for triggering the hole plugging action of the hole plugging rod; freedom of the defoaming ball is recovered based on the phase change characteristic of the phase change rod, high-frequency vibration is conducted under the elastic action, the defoaming wires extending into the hole plugging material are promoted to vibrate, bubbles in the hole plugging material can be effectively eliminated, escape of air in the hole plugging material to the outside is accelerated; meanwhile, during final curing, the defoaming rod body is extruded under the magnetic attraction matching effect of the defoaming wire and the phase change rod, air in the defoaming rod body is extruded into the plugging ball head to start expanding, openings in the two ends of the through hole are plugged, and tin beads are prevented from entering the through hole; compared with a conventional hole plugging method, the hole plugging quality can be remarkably improved, and the foaming problem and the tin bead problem are solved.
Owner:江西领德辉电路有限公司

Battery membrane laminator

The invention discloses a battery membrane laminator comprising a lower rack which is provided with a feeding line, a feeding manipulator for conveying a battery on the feeding line to a secondary positioning device, a membrane laminating feeding manipulator for conveying the battery on the secondary positioning device to a membrane laminating air pressure device for pressing a membrane, and a membrane laminating discharging manipulator for conveying the battery after membrane lamination of the membrane laminating air pressure device to a discharging air pressure module, wherein the secondarypositioning device is arranged between two groups of membrane laminating air pressure devices, and the discharging air pressure module conveys the membrane laminated battery to the position of a CCD detection device for quality detection. The battery with the laminated membrane can be rolled at the fixed time, and then the lamination state of the laminated membrane after rolling of the battery isdetected. The photoelectric sensor is aligned in secondary positioning to detect the height of the battery, and a rolling module is arranged to set the fixed time and the number of rolls back and forth in the rolling process of the battery so that the close contact of the membrane rolling of the battery can be ensured.
Owner:GUANGDONG DONGBO AUTOMATION EQUIP CO LTD

Foam breaker

ActiveCN103170212AReduce white smoke from chimneysEliminate air bubblesUsing liquid separation agentEngineeringFlue gas
The invention discloses a foam breaker which comprises a foam breaker barrel, wherein a Venturi tube bundle consisting of multiple Venturi tubes which are arranged in parallel is fixedly arranged in the foam breaker barrel; each Venturi tube comprises a throat tube and a flaring diffusion section which is communicated with the upper end of the throat tube and of which the inner diameter is gradually enlarged in the radial direction; a spraying pipe is fixedly arranged on the inner wall of the foam breaker barrel relative to the end of the flaring diffusion section; the lower edge of an umbrella-shaped water curtain sprayed from each umbrella-shaped spraying head is positioned outside the flaring diffusion section; a liquid collecting hopper is arranged between the upper and lower ends of the Venturi tubes positioned in the foam breaker barrel; the inner cavity of the foam breaker barrel is divided into an upper cavity and a lower cavity through the liquid collecting hopper; the lower end of the liquid collecting hopper is provided with a drainage pipe; and an outlet of the drainage pipe is arranged outside the foam breaker barrel. The foam breaker has the advantages that air bubbles formed after wet-process flue gas dust removal desulfuration can be eliminated, and the entrainment generated by the broken air bubbles is eliminated, so that the phenomenon that white smoke or trailing occurs in the chimney is reduced.
Owner:SINOPEC ENG GRP CO LTD +2

Casting method of aluminum alloy rod parts and casting equipment for realizing same

InactiveCN102133628AEliminate air bubblesEliminate air slag holesIngot casting plantsPoor qualityHigh energy
The invention relates to a casting method of aluminum alloy rod parts and casting equipment for realizing the same. The casting method is characterized in that liquid supply is carried out under the liquid level and a metal liquid is cooled and solidified from bottom to top. The casting equipment comprises a mould and a suspended funnelform ladle, wherein the mould is arranged with a mould cavity opening vertically upward; a filter screen is padded at the bottom of the inner cavity of the ladle; the inner cavity of the ladle and a funnel opening are partitioned by the filter screen; the meshes of the filter screen are fine, thereby temporarily storing molten metal foams; the funnel opening of the ladle is connected with a long and thin liquid conveying pipe for guiding and conveying molten metal; the liquid conveying pipe is inserted into the mould cavity of the mould and the bottom end of the liquid conveying pipe is close to the bottom of the mould cavity; the molten metal is injected to the mould cavity through the liquid conveying pipe; the liquid conveying pipe raises gradually relative to the bottom of the mould cavity on the premise that the bottom liquid outlet of the liquid conveying pipe is positioned below the liquid level after the molten metal overflows the bottom of the liquid conveying pipe, and the liquid level gradually raises and is sequentially cooled and solidified towards the top. By utilizing the casting method, the defects of poor quality, low molded product percent of pass and high energy consumption existing in the traditional casting method are overcome, and low energy consumption, high part percent of pass and good quality are realized.
Owner:ZHEJIANG HENGTONG MACHINERY

Printing ink defoaming equipment utilizing airflow positive pressure vibration

The invention relates to the technical field of printing ink, and in particular relates to printing ink defoaming equipment utilizing airflow positive pressure vibration. The equipment comprises an oil tank, and an oil outlet mechanism is fixedly connected inside the oil tank. The oil outlet mechanism comprises an oil outlet. An oil extraction port is fixedly connected at the upper part of the oiloutlet. A shell is fixedly connected at one end, remote from the oil outlet, of the oil extraction port. A defoaming mechanism is fixedly connected inside the shell. The defoaming mechanism comprisesan air outlet nozzle. And an air supply channel is fixedly connected inside the air outlet nozzle. An oil return channel is fixedly connected to the surface of the air supply channel, a hollow channel is fixedly connected to the upper part of the air outlet nozzle, and the shell is vibrated when fan blades rotate; because a vibration absorbing material is arranged between the shell and the oil outlet mechanism, the vibration does not affect the oil outlet mechanism. The vibration of the shell can cause ink in an ink tank to slightly vibrate, and at the same time, the top of the shell is accompanied by a flowing-out airflow, and the effect of separating flocculent substances can be achieved.
Owner:东莞市南粤印刷有限公司

Heating and refrigerating system applied to supergravity model test

InactiveCN112067325APrecise temperature control of the structureEliminate air bubblesStructural/machines measurementCentrifugal pumpData collector
The invention discloses a heating and refrigerating system applied to a supergravity model test. A driving acquisition system is arranged outside a supergravity centrifuge, a multistage centrifugal pump is connected with a cooling circulating water machine, the cooling circulating water machine is connected to a rotary joint through a flow meter, and the multistage centrifugal pump is connected with the rotary joint; a temperature sensor is arranged in the cooling circulating water machine and is connected with a temperature data collector; the rotary joint is arranged on a main shaft base ofthe supergravity centrifuge, the rotary joint is connected with the temperature control system, and the temperature control system is arranged on a hanging basket of the supergravity centrifuge; and two flow dividers serve as an inlet side and an outlet side respectively, flow dividing ports of the flow dividers are connected to the two ends of an energy pile silicone tube, and the energy pile silicone tube is pre-buried in the energy pile to form an underground energy structure. According to the heating and refrigerating system, the multistage centrifugal pump is adopted, the driving acquisition system is arranged outside the supergravity centrifuge, the influence of supergravity on an experimental device is reduced, and a technical problem that only the same temperature load can be applied to a single model is solved by adopting the flow divider and a temperature control valve; and the stability and the accuracy of temperature measurement can be improved.
Owner:ZHEJIANG UNIV

Pretreatment method and device for circuit board heat dissipation ink

The invention discloses a pretreatment method and device for circuit board heat dissipation ink. The method comprises the steps: S1, thermosetting graphene ink and a defoaming agent are poured into astirring barrel in proportion; S2, the printing ink in the stirring barrel is subjected to shear type stirring under the condition that the rotating speed is larger than or equal to 1000 RPM, and thestirring time is larger than or equal to 10 min; and S3, the stirred ink is cooled to room temperature. The device comprises a support, a stirring motor arranged on the support, and a stirring barrelarranged below the support; the stirring motor is connected with a shearing type stirring head, and the rotating speed of the stirring motor is larger than or equal to 1000 RPM. According to the pretreatment method and device disclosed by the invention, the defoaming agent is added when the thermosetting graphene ink is stirred, elimination of bubbles in the ink can be facilitated, the thermosetting graphene ink is stirred at a high speed, graphene can be uniformly distributed in the ink, stirring can be performed in a non-vacuum environment, expensive vacuum stirring device is not needed, andreduction of the production cost can be facilitated.
Owner:珠海斗门超毅实业有限公司

Storage battery charging circuit with capacity repair function

The invention relates to a storage battery charging circuit with a capacity repairing function. The circuit comprises a rectifying and filtering circuit, a PWM excitation circuit, a storage battery, an output feedback protection circuit and a pulse generation circuit; the rectifying and filtering circuit is electrically connected with the PWM excitation circuit; the PWM excitation circuit is electrically connected with the storage battery; the storage battery is electrically connected with the output feedback protection circuit; the output feedback protection circuit is electrically connectedwith the pulse generation circuit; and the pulse generation circuit is electrically connected with the PWM excitation circuit. According to the storage battery charging circuit with the capacity repairing function of the invention, fast pulse charging is adopted, that is, short-time charging suspension during a charging process can be realized, and therefore, the quantity of air inside the storagebattery can be effectively controlled, air bubbles can be eliminated, high temperature inside the storage battery during charging can be decreased, the loss of water can be reduced, a sulfuration phenomenon can be eliminated, the capacity of the storage battery can be repaired, the number of times of the cyclic charging of the storage battery can be increased, and the service life of the storagebattery can be prolonged.
Owner:CHINA UNIV OF MINING & TECH

Large-caliber thick-wall quartz glass tube and preparation method thereof

The invention discloses a large-caliber thick-wall quartz glass tube. Quartz sand is used as a basic raw material in parts by weight, and is compounded with a microelement additive in parts by weight,accounting for 3.1% to 4.2% of the parts (by weight) of the quartz sand, wherein the microelement additive is prepared from the following raw materials in weight ratios: 0.4 to 0.6 of sodium chlorate, 0.1 to 0.3 of ammonium chloride, 0.2 to 0.4 of antimonous oxide and 0.3 to 0.5 of cerous nitrate. The sodium chlorate, the ammonium chloride and the cerous nitrate are mixed, added with water, dissolved and made into an aqueous solution; the antimonous oxide is added into hydrochloric acid and made into an acidic solution; the aqueous solution, the acidic solution and high-purity quartz sand aremixed, then are sent into a sand baking machine to carry out oven-drying swelling, next, are subjected to magnetic separation and screening, and are put into a continuous melting furnace to carry outdrawing forming; a used former is provided with an air flow convoluting chamber in an air vent hole; and the air flow convoluting chamber is used for achieving dilatation and flow stabilizing effectsand ensuring the forming precision of the tube wall of a glass tube. The large-caliber thick-wall quartz glass tube prepared by the invention has the characteristics of being excellent in high temperature resistance, high in hardness, slight in thermal expansion, free from air bubbles and free from air lines.
Owner:LIANYUNGANG HONGYANG QUARTZ PROD

High-reliable electric heating pipe sealing structure and method

A high-reliable electric heating pipe sealing structure and method are disclosed. A lead rod is arranged in an electric heating tube body. A space between the lead rod and the tube body is filled withmagnesium oxide powders. An insulation sealing device is disposed at the sealing port of the electric heating tube body and is composed of an upper opening, a middle channel, a lower channel, and a lower opening. The lead rod penetrates through the middle channel of a sealing port device. A sealant is arranged between the insulation sealing device and the electric heating pipe body. The outer diameter of the upper part of the insulation sealing device is larger than the diameter of the outer wall of the sealing port of the electric heating pipe body, and the outer diameter of the lower part of the insulation sealing device is smaller than the diameter of the inner wall of the electric heating pipe body. The diameter of the upper opening gradually decreases toward the middle of the sealingport device. The diameter of the lower channel gradually decreases toward the middle of the insulation sealing device. The lower opening is located below the lower channel. The diameter of the loweropening gradually decreases toward the lower channel. The smallest diameter of the lower opening is equal to the largest diameter of the lower channel. The high-reliable electric heating pipe sealingstructure has the advantages of good bonding during the curing process of the sealant and improving the insulation withstand voltage.
Owner:GUANGZHOU JIANLONG ELECTRIC APPLIANCE

Vibration-assisted nano rolling device

The invention relates to a vibration-assisted nano rolling device, which comprises the following steps that firstly, a rack is horizontally placed on an experiment table, then an X-Y-axis displacementplatform is adjusted to enable a Z-direction vibration device to be positioned right below an imprinting roller, a glued substrate is fixed in the center of a substrate chuck, a fine adjustment device is adjusted to enable the imprinting roller to be horizontal, and then the Z-axis displacement platform is controlled to move downwards to enable the imprinting roller to be in micro contact with the imprinting glue, the heating device is started to heat the substrate, imprinting is started after heating is completed, the Z-direction vibration device starts to vibrate while imprinting is conducted, then cooling and demolding are conducted, and finally the Z-axis displacement platform is controlled to ascend, and imprinting is completed. The Z-direction vibration device is adopted, so that gap contact is generated between the template and the imprinting glue, the adhesive force between the template and the imprinting glue is reduced, friction heat production is performed through multipletimes of gap contact, the imprinting glue melts and flows, the filling degree of the imprinting glue is improved, the imprinting roller is adjusted to be horizontal through the fine adjustment device,and the cooling device is used for cooling; and the precision and fidelity of the micro-nano structure are further improved.
Owner:CHANGCHUN UNIV OF TECH

Quantitative concrete wallboard pouring equipment for civil construction engineering

ActiveCN114434591AImport avoidImport moreFeeding arrangmentsArchitectural engineeringWall plate
The concrete wallboard quantitative pouring equipment for civil construction engineering comprises a movable base, fine adjustment devices are fixedly connected to the front portion and the rear portion of the upper end of the movable base correspondingly, and a first connecting rod and a second connecting rod are jointly and fixedly connected to the upper ends of the two fine adjustment devices; a supporting frame is fixedly connected to the middle of the right end of the second connecting rod, a material guiding device is connected into the supporting frame in a penetrating mode, a vibrating device is fixedly connected to the front portions of the upper ends of the first connecting rod and the second connecting rod jointly, and two base plates are fixedly connected to the middle of the upper ends of the first connecting rod and the second connecting rod. And the upper ends of the two base plates are jointly and fixedly connected with a dumping device, the middle of the upper end of the movable base is fixedly connected with a conveying mechanism, and the middle of the upper end of the first connecting rod is fixedly connected with two positioning rods. According to the concrete wallboard quantitative pouring equipment for civil construction engineering, the flexibility and practicability of the whole device are high, the pouring stability is high, and the pouring effect is good.
Owner:JIANGSU WEIFENG BUILDING INSTALLATION GROUP
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