100results about How to "Prevent nozzle clogging" patented technology

A semiconductor processing system including a semiconductor processing apparatus and a gas supply apparatus for supplying a process gas into the semiconductor processing apparatus includes a control section configured to control an operation of a pressure adjusting mechanism for adjusting the pressure inside a vaporizing chamber. The control section is preset to cause the pressure inside the vaporizing chamber to fall within a predetermined pressure range with reference to a pressure detection value obtained by a pressure detector. The predetermined pressure range is defined by an upper limit lower than a first limit value, at which vaporization of the liquid material starts being inhibited due to an increase in the pressure, and a lower limit higher than a second limit value, at which vaporization of the liquid material starts being unstable and the pressure inside the vaporizing chamber starts pulsating movement due to a decrease in the pressure.

A conductive ink including metal ions, a functional solvent, and a capping agent, a method of preparing a metal wiring using the conductive ink, and a printed circuit board including the metal wiring.

An ink jet printer incudes a carriage supported slidably in opposite reciprocating directions and having a turning axis which extends in these directions. The printer also includes a head holder a and a head unit. The unit is fixed to the front wall of the holder, and has print heads. The printer further includes protective caps for covering the ejection faces of the heads respectively. When the heads are replaced at their position where their ejection faces are opposite the caps the caps are oriented opposite the direction in which the holder is moved toward the axis. When the holder is put on the carriage in such a direction that the holder approaches the caps the caps cap the heads. The caps can move in the directions in which the holder turn. After part of the holder is put on the carriage, the holder is turned around the axis to its normal position, where the heads correctly face the printing position on printing paper. The holder turns together with the caps with the heads capped with them. The cap does not rub on the ejection faces of the heads.

Aqueous, colloidal gas black suspension, containing a gas black, an azo compound of formula 1,

and water.

The aqueous, colloidal gas black suspensions is produced in that the gas black and the azo compound of general formula 1 are dispersed in water.

It may be used to produce inks, ink jet inks, paints, printing inks, latices, textiles, leather, adhesives, silicones, plastics materials, concrete and construction materials.

An organic electroluminescence display panel includes a thin-film transistor layer above a substrate. A planarizing film is above the thin-film transistor layer with contact holes being formed in the planarizing film. A bank is above the planarizing film. The bank includes openings arranged in rows and columns that define regions for forming organic electroluminescence elements. Each opening is between a pair of adjacent concaves in one of the columns. The concaves are formed in an upper surface of the bank and sunken into the contact holes. The upper surface of the bank has repellency. A light-emitting layer is formed in each opening by ejecting drops of an ink from nozzles of an inkjet head into the openings while moving the inkjet head relative to the substrate. The nozzles further eject drops of the ink into the concaves when above the concaves for ejecting the drops of the ink through every nozzle.

A compound represented by the following formula (I) or formula (2-I)

An enteric preparation having a film-forming property and acid resistance is provided by using a simple and efficient method without using a special cooling apparatus. More specifically, provided is a method for producing an aqueous enteric coating liquid including the steps of: partially neutralizing an aqueous suspension including a cellulosic enteric material with an aqueous alkali solution, and mixing the partially-neutralized aqueous suspension with a plasticizer. Also provided is a solid preparation including a core including a drug and a coating portion obtained by coating the core with the produced aqueous enteric coating liquid. Further, provided is a method for producing a solid preparation, including respective steps in the method for producing an aqueous enteric coating liquid and a step of coating a core including a drug with the produced aqueous enteric coating liquid.

The invention provides a 3D (3-dimensional) printing device, which comprises a case, a crucible, a cover plate, a liquid conveying device, a pressure conveying device, an outer spray nozzle, a first temperature control device, an industrial control device, a second thermocouple, a second heater and a second temperature control instrument, wherein the crucible is arranged in the case; the cover plate is fixedly arranged on the top of the case and seals the crucible; the liquid conveying device and the pressure conveying device are communicated with the crucible; the outer spray nozzle is fixedly arranged at the bottom of the case; the first temperature control device is used for controlling the temperature of liquid in the crucible; the second thermocouple and the second heater are arranged in positions, near an outlet, in the outer spray nozzle; the second temperature control instrument is connected with the second thermocouple and the second heater; a slide block is also arranged in the outer spray nozzle, and is connected with a first motor; the outlet can be opened or closed through the slide block being driven by the first motor, and the first motor is electrically connected with the industrial control device. The heater is used for heating, so that the concentrated liquid flow is enabled to be in a high-temperature state, and the spray nozzle outlet blockage due to liquid cooling condensation is avoided; an air film passage restrains the concentrated liquid flow, and prevents the concentrated liquid flow from contacting the spray nozzle, and the spray nozzle is further prevented from being blocked.

Provided is a liquid jet head, a method of manufacturing the same, and a liquid jet apparatus, in which liquid ejecting characteristics can be kept constant for a long period and in which nozzle blockage is prevented. In a liquid jet head including a passage-forming substrate (10) which is made of a single crystal silicon substrate and in which pressure generating chambers (12) communicating with nozzle orifices are formed, and pressure generating elements (300) for causing pressure changes in the pressure generating chambers (12), a protective film (100) which is made of tantalum oxide and has resistance to liquid, is provided at least on the inner wall surfaces of the pressure generating chambers (12).

A multi-disc air diffuser according to the present invention comprises a bolt having a vent groove formed in a longitudinal direction thereof; a plurality of discs, each of the discs having a bolt joint section to be passed through the bolt, an air room for holding the air supplied through the vent groove, and a nozzle section having a plurality of nozzles which are arranged in an end part of the air room at a regular size and intervals, wherein the lower surface of each of the discs is more than the upper surface thereof and the outer circumference surface of each of the discs is formed to be inclined; and a backflow prevention section for joining to an end part of the bolt to adhere closely the discs to one another, connecting the vent groove to an air supply pipe, and having a check valve to prevent the air flowing backward from the vent groove to the air supply pipe.

In regard to a nozzle 20, used for electrostatic spraying of a nanomaterial dispersion liquid 13, in which a nanomaterial is dispersed in a solvent, the nozzle 20 includes: a nozzle body 21, having a tubular structure capable of storing the nanomaterial dispersion liquid 13 in an interior thereof and having a dispersion liquid spray outlet 22 disposed at a tip thereof; and a rod-like core structure 24, disposed in an interior of the nozzle body 21. The core structure 24 extends in a predetermined range, including the spray outlet 22, along a longitudinal direction of the nozzle body 21 in a state of contacting an inner wall of the nozzle body 21. By using such an electrostatic spray nozzle 20, immobilization on a sample can be performed favorably while suppressing aggregation of the nanomaterial.

A liquid reducing agent of a necessary amount according to an engine operating condition is injection-supplied from a nozzle having an injection hole opening to inside an exhaust gas passage, positioned on an exhaust gas upstream side of a nitrogen oxide reduction catalyst. On the other hand, when an injection flow rate of the liquid reducing agent becomes zero, compressed air stored in a purge air tank is supplied into the nozzle for a predetermined time. Thus, the liquid reducing agent remaining in the nozzle is forcibly discharged by the compressed air, and hence even if the nozzle is at a high temperature due to the exhaust heat, a situation where reducing agent constituents are deposited does not occur, and clogging of the inside of the nozzle can be prevented.

The invention discloses a fuel injection quantity electrical signal acquisition system and method based on a Zeuch pressure magnetic method. The system comprises a measurement module, a fuel injectorpressurization module, a square-cavity pressurization module and a signal post-processing module. The fuel injector pressurization module and the square-cavity pressurization module are used for loading the initial injection pressure and the square-cavity back pressure; after a fuel injection process is completed, the measurement module captures a pressure signal variation curve in the square-cavity; and a pressure signal curve can be reverted to an actual fuel injection rate by the signal post-processing module after the operations of filtering, differentiation, calibration and the like are performed. The invention designs and processes a fuel injection rate measuring instrument, and the measuring instrument can effectively detect a multi-stage injection process, and is high in repeatability, convenient to carry, and low in noise and good in seismic performance during use.

An ink-jet head comprises a reservoir unit that includes an ink reservoir. The reservoir unit includes an introduction passage that connects an ink introduction port and an inflow port facing the ink reservoir, and a filter that extends within the introduction passage. The introduction passage has such a configuration that, on both sides of the filter, ink can flow along the filter toward the inflow port. An ink non-passing area is formed within the reservoir unit. The ink non-passing area extends continuously, from at least a part of an area on a plane of the filter opposed to the inflow port, in a direction away from the inflow port.

The invention discloses asphalt flue gas purification treatment equipment. The equipment comprises a dynamic wave washing device, a light direct oxidation and photocatalysis oxidation device and a water treatment device. The dynamic wave washing device and the water treatment device are connected through a water pipe. The dynamic wave washing device and the light direct oxidation and photocatalysis oxidation device are connected through a gas pipe. It is an important breakthrough that dynamic wave washing, gas, solid and liquid separation, photochemical oxidation technology and water treatment are combined for successful purification treatment of asphalt flue gas in the technology in the field of environmental protection. At present, multiple enterprises in China basically adopt a sprinkling cleaning and activated carbon adsorption method for treating industrial waste gas containing high-concentration organic matters, and the problems that the pollution cleaning effect is not ideal and activated carbon is hard to treat exist. The dynamic wave washing and photochemical oxidation technology is adopted for successful purification treatment of asphalt flue gas, and a novel wider way is opened up through the light direct oxidation and photocatalytic oxidation cooperative reaction technology for atmospheric pollution treatment and industrial waste gas treatment in China.

An aqueous ink set for ink jet recording includes an aqueous pigment ink containing water and a pigment as a coloring agent and an aqueous dye ink containing water and a dye as a coloring agent, in which the concentration of the divalent metal ions of the pigment ink is 10 ppm or more, and the potassium ion concentration of the dye ink is 50 ppm or less.