120 results about "Developing tank" patented technology

To prevent scattering of toner when an image forming operation is started and ended in a developing process using one-component toner, a rotatable developing roller in contact with a photosensitive member carrying a static latent image, which is used to carry and feed one-component toner, is provided in a developing tank containing one-component toner. Initially, toner is fed to a feed roller, then passed through a toner restricting member which is pressed against the developing roller to restrict the amount of toner to be fed, so that a layer of toner is formed at a fixed thickness and fed into a developing area in contact with the photosensitive member. Thus a static latent image is produced on the developing roller. In this process, a developing bias voltage Va is supplied to the developing roller, a restricting voltage Vb is supplied to the toner restricting member so as to fix the thickness of the toner layer, and a supply voltage Vc is supplied to the feed roller to control the supply of toner. Specifically, the developing bias voltage Va, restricting voltage Vb, and supply voltage Vc are applied to their respective objects before the developing roller begins rotating, thereby minimizing or preventing the scattering or blowing out of toner. Additionally, supply of those voltages Va, Vo, and Vc are stopped after the developing roller stops, which also helps to prevent excess scattering of toner.

The invention relates to a cleaning agent for a dry-film developing tank of a printed circuit board (PCB). The cleaning agent comprises a solvent A and a solvent B, wherein the solvent A comprises the following components in percentage by weight: 15% to 20% of phosphoric acid, 4% to 10% of acetic acid and the balance of water; and with the solvent A as the basic quantity, the solvent B comprises the following components in percentage by weight: 3% to 6% of emulsifying agent, 0.5% to 1% of solubilizer, and 1% to 3% of surfactant. The cleaning agent for the dry-film developing tank of the PCB has the advantages of low cleaning temperature, short cleaning time and good cleaning effect.

The invention discloses a detecting method of saturated hydrocarbon, aromatic hydrocarbon, colloid and asphaltene content in one oil, which comprises the following steps: diluting the 1-2 weight sample through 45-90 weight benzeneú” preheating for half a hour through thin-layer chromatograph to do blank scan; setting the drier temperature between 100 and 120 deg.c; extracting 1.0ª–l sample through microscale injector to drip on the chromarod for 5 times; moving the chromarod at the first, second and third developing tank; connecting the host and disposer to scan the chromarod on the hydrogen flame; displaying chromatogram, chromatogram peak area and hydrocarbon, aromatic hydrocarbon, colloid, asphaltene content on the data disposer automatically, which realizes the detection of single or mixing oil.

A developing device includes a developer tank and a developing roller. An internal space of the developer tank is divided into an upper conveying path, a lower conveying path, a communication path, a main pumping conveying path section, and a developer supply path, by a partition wall. A developer pumping conveying section conveys a developer inside the main pumping conveying path section in a conveyance direction Z, and includes an inner spiral blade, a rotational tube, a first outer spiral blade, a second outer spiral blade, a pumping rotation shaft member, and a pumping gear. An attracting magnet is located in a position horizontally spaced from the rotational tube.

The development device of the present invention has a rotating shutter supported rotatably between a supply opening formed on a toner supply device and a receiving opening formed on a developing tank. The rotating shutter has an open section extending in the axial direction of the roller-shaped main section as well as opened in the direction perpendicular to the axial direction thereof, opening and shutting the supply opening in conjunction with attachment and detachment operation of the developing tank. The rotating shutter shuts the supply opening by covering the supply opening with the outer surface of the roller-shaped main section, and opens the supply opening by communicating the supply opening and the receiving opening through the open section. Thus, it is possible to prevent the leakage of toner even after repetitively performing the attachment and detachment operation of the developing tank.

The invention discloses a cleaning system and a cleaning method of developing solution circulation process equipment. The cleaning system of the developing solution circulation process equipment comprises a developing tank, a concentration tank, a circulation power pump and a microfiltration film pipe fitting adopting cross filtration, wherein the developing tank is connected to the concentrationtank; the concentration tank is connected to the circulation power pump; the circulation power pump is connected to one end of the microfiltration film pipe fitting through the water outlet pipeline of the pump; the other end of the microfiltration film pipe fitting is connected to the concentration tank through a strong water return pipeline; and the microfiltration film pipe fitting is connected to the developing tank through a filter liquor return pipeline. Particularly, a back washing device, a medicine washing device and a water washing device are fully designed in the cleaning system for the cleaning of the microfiltration film pipe fitting, so as to prevent a microfiltration film from being blocked and maintain the optimum filtration function of the microfiltration film pipe fitting; and meanwhile, a film pipe protecting device is further arranged in the cleaning system, whether the microfiltration film pipe fitting needs cleaning is judged by a controller, and the corresponding cleaning mode is selected through the controller, so as to control the start-up of different cleaning devices.

The invention provides a paper-based micro-fluidic chip with a multi-channel heavy metal ion detection function. The paper-based micro-fluidic chip is composed of a first layer of paper substrate, a second layer of paper substrate, a third layer of paper substrate and a bottom layer supporting substrate, and is characterized in that the chip is round or rectangular, and the three layers of paper substrates which are consistent in shape and size and are subjected to hydrophobic treatment are pasted together. The chip is provided with a color developing tank, a gradient channel, a reaction tank,a reagent channel, a reagent port, a sample port, a filter tank, a diversion tank, a diversion channel and a filtrate mutual channel with specific shapes and sizes. According to the chip, various functional components are arranged in a star shape by taking the sample port as a center. Or the sample port and the reagent port are taken as the center separately, and a left center and a right centerare formed, and the other functional components are arranged in the middle of the sample port and the reagent port. The paper-based micro-fluidic chip has the beneficial effects that the chip is disposable, the material adopts the low-price degradable filter paper, and the chip is environment-friendly and pollution-free, so that secondary damage to the environment is avoided; and continuous, real-time and rapid detection of heavy metal ions can be realized for environmental monitoring.

The invention provides a PCB developing tank cleaning solution and a method for cleaning a developing tank by using the same. The PCB developing tank cleaning solution comprises the following components in percentage by mass: 10-20% of ethylene glycol monobutyl ether, 15-30% of an emulsifying agent, 20-40% of acid and the balance of water. Ethylene glycol monobutyl ether is used as a bulking agent in the PCB developing tank cleaning solution to ensure that non-photosensitive solder resist ink is gradually dissolved into the PCB developing tank cleaning solution, beads formed by the solder resist ink are further decomposed into very fine particles by using emulsifying agent, a layer of milky substances is formed on the surfaces of the particles, and therefore, the non-photosensitive solder resist ink remained in a PCB developing tank is effectively cleaned under the combination action of acid and water; when the developing tank is cleaned by using the PCB developing tank cleaning solution, the PCB developing tank cleaning solution is not needed to be heated to very high temperature, the cleaning time is relatively short, and the cleaning effect is rather ideal.

A developing device 2a, which is provided with: a developer tank 16 that houses a developer 24 containing a toner, a carrier for charging the toner and reverse polarity particles that are charged with a polarity reversed to the electrostatic charge polarity of the toner by the carrier; a developer-supporting member 11 that supports the developer supplied from the developer tank on the surface thereof, and transports the developer; and a separating mechanism 22 that separates the toner or the reverse polarity particles from the developer supported on the developer-supporting member, and the reverse polarity particles are collected into the developer tank, is provided, and an image-forming apparatus having such a developing device and an image-forming method applied thereto are also provided.

The invention discloses a circuit-board developing, electroplating and etching device suitable for carrying out manufacturing processes of developing, electroplating and etching on an exposed circuit board. The circuit-board developing, electroplating and etching device comprises a plurality of tank units and a moving unit. The tank units comprise a developing tank, a first water washing tank, an acid washing tank, a second water washing tank, an electroplating tank, a third water washing tank, a stripping tank, a fourth water washing tank, an etching tank, a fifth water washing tank and a drying tank, wherein the tanks are connected with one another in sequence. The moving unit clamps the exposed circuit board and enables the exposed circuit board to pass through the developing tank, the first water washing tank, the acid washing tank, the second water washing tank, the electroplating tank, the third water washing tank, the stripping tank, the fourth water washing tank, the etching tank, the fifth water washing tank and the drying tank in sequence, and therefore the manufacturing processes of developing, electroplating and etching are completed.

In the developing apparatus including a developing bath and a toner transport pipe for supplying toner to the developing bath, a toner supply portion opening/closing mechanism is provided, that includes a shutter member for opening and closing a toner supply port of the toner transport pipe that is contained in a base portion of the toner transport pipe, a shaft for moving the shutter member back and forth in a longitudinal direction of the developing bath, a second spring member provided such that the shaft is inserted therein, a first spring member for supporting the shaft detachably to the shutter member through its extension and contraction, and a lever member for extending and contracting the first spring member through its releasing and closing.

Provided is a method for adjusting a developing device including a magnetic roll (143) for holding a two-component developer (146) composed of a carrier and toner filled in a developing tank (142) in a brush state, and a developing roll (144) for developing an electrostatic latent image formed in an image carrier (110) by holding toner conveyed from the magnetic roll (143), having a bias voltage adjustment step for adjusting a conveyance amount of toner from the magnetic roll (143) to the developing roll (144) by an adjustment of bias voltages (Vdc3, Vdc4) applied to the magnetic roll (143) and the developing roll (144) respectively, and a mixing ratio adjustment step for adjusting a conveyance amount of the toner by an adjusting a mixing ratio of the two-component developer (146).

The invention discloses a method for removing fluorescent liquid in an aero-engine compressor casing. The method is used for carrying out fluorescent flaw detection on blades of the 3-7-stage compressor casing and cleaning away penetrating liquid. Cold air and a water vapor spraying gun are adopted for purging a blade installation groove in the upper end face of the 4-7-stage part of the compressor casing and a stopping block installation site in the 3-stage part of the compressor casing so that the penetrating liquid can flow out from a casing gap or the other stopping block installation site; hot water is adopted for cleaning in winter, redundant penetrating liquid on the surface is cleaned away, and to prevent excessive cleaning, only the water vapor spraying gun and hot water can be adopted for cleaning rather than cold air is directly adopted for purging; the casing is placed in a developing tank for development after being dried. Post-cleaning is carried out on the casing after a flaw detection result shows that the casing is up to standard, and because a small amount of penetrating liquid which does not influence flaw detection quality remains in the gap, cleaning after flaw detection is necessary. The casing is placed in the hot water to be soaked, compressed air and the water vapor spraying gun are adopted for purging the blade installation groove in the upper end face of the 4-7-stage part of the compressor casing and the stopping block installation site in the 3-stage part of the compressor casing till no penetrating liquid flows out of the gap, and the casing is dried through a fan or an oven. By means of the method, the cost is lowered, the production cycle is shortened, and the production quality is improved.

The invention discloses an environment-friendly developing tank dirt scavenging agent as well as a preparation method and an application method thereof. The environment-friendly developing tank dirt scavenging agent is prepared from the following raw materials: acid liquid, a solubilizing agent, a surfactant and de-ionized water, wherein the acid liquid is obtained by mixing one or more of components including sulfuric acid, hydrochloric acid, nitric acid, acetic acid, glycollic acid, citric acid and the like according to the equal mass ratio; the solubilizing agent is obtained by mixing one or more of components including ethanol, propylene glycol, isopropanol, butanediol, isobutanol, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and the like; and the surfactant is glycerin fatty acid ester. The preparation method of the environment-friendly developing tank dirt scavenging agent comprises the following steps: adding water; adding a sulfuric acid solution into a stirring tank added with the de-ionized water; adding the hydrochloric acid into the stirring tank; adding the glycollic acid; adding the ethanol, the ethylene glycol monobutyl ether and the diethyleneglycol monobutyl ether; adding the surfactant; and finally, adding the de-ionized water to make the volume constant, and sufficiently stirring.

The invention relates to a device used for maintaining the stability of a developing solution. The device comprises a developing tank 8, a developing solution addition tank 1, a metering pump 2, a pH meter 3, a programmable logic controller (PLC) 4, a pipeline 5, a signal lien 6, and valves 7 and 7'. The valve 7 is connected at a water outlet of the developing solution addition tank 1. The valve 7' is arranged at a water outlet of the metering pump 2. The pipeline 5 is used for delivering the developing solution. The pH meter 3 is a continuous-measuring on-line pH meter. The PLC 4 is used for receiving pH meter real-time monitoring signals and controlling the starting and working times of the metering pump. The signal line 6 is used for collecting and transmitting the signals of the PLC 4. With the device used for maintaining the stability of the developing solution, the developing solution can be subjected to intelligent real-time full-automatic monitoring and adjustment, and can be added automatically. Therefore, labor intensity is reduced, and production efficiency is improved.

The invention belongs to the technical field of the detection of product homogeneity, and particularly relates to a method for determining a numerical value of homogenous self-radiating rays of an MOX pellet. The method comprises the following steps: selecting an MOX pellet or a green body; drying and storing a photographic film in a vacuum drying box; taking out the photographic film, and laying on a table-board; successively arranging the selected pellets or the green bodies on an upper portion of the photographic film according to serial numbers, and enabling a test sample to irradiate the photographic film; taking out the test sample, storing the test sample in a fabricated storage area, and installing a photo into a developing jar in a dark pocket; adding a photographic fixing concentrated solution and a photographic fixing removal solution into water; soaking the photo by the developing jar filled with the photographic film; preparing a working solution, adding a developing solution into the developing jar, vibrating the developing jar, and pouring out the developing solution; adding stop bath into the developing jar, and after the soaking, discharging the stop bath out of the developing jar; adding the photographic fixing solution into the developing jar, vibrating the developing jar, and pouring out the photographic fixing solution; taking out the photographic film, and cleaning and drying; and observing a result under an electric observation lamp, and evaluating homogeneity of the pellet or the green body. By adopting the method, the efficiency for detecting the homogeneity of the pellet can be improved.

The invention discloses an industrial constant-temperature film developer which comprises a cuboid-shaped mainframe box, a console, a developing tank, a developing stop tank, a fixing tank, a rinsing tank, a film viewing illuminator and a darkroom red lamp, wherein the console is arranged on the upper end surface of the mainframe box, the film viewing illuminator and the darkroom red lamp are arranged on the console, the developing tank comprises a developing box body, a cooling tube arranged on the side wall of a first box body and a first heating tube arranged at the bottom of the developing box body, the developing stop tank comprises a second box body, the fixing tank comprises a third box body and a second heating tube arranged at the bottom of the third box body, the rinsing tank comprises a fourth box body, the first heating tube can be heated to the highest temperature of 120 DEG C, the lowest cooling temperature of the cooling tube is -40 DEG C, and the highest heating temperature of the second heating tube is 120 DEG C. According to the industrial constant-temperature film developer, the film viewing illuminator and the darkroom red lamp are additionally arranged on the console, the operation steps are simplified, and the production efficiency is improved; in addition, the temperature regulation scope is wide, so as to meet various film developing requirements.

The application discloses a developing device and a developing processing method. The developing device comprises a developing nozzle, a connecting pipeline and a developing tank, wherein the developing tank is used to hold the developing liquid; the connecting pipeline is used to communicate with the developing nozzle and the developing tank and to convey the developing liquid to the developing nozzle; and the developing nozzle is used to spray the developing liquid to a target region to be developed, and the location of the developing nozzle is adjustable. Thereby, when the developing device is used for developing the target region to be developed to realize the compensation for the size of TFT graphics, as the location of the developing nozzle for spraying the developing liquid in the developing device is adjustable, the target region to be developed can be more flexibly developed, and thus the size of the TFT graphics can be effectively compensated, the dimensional difference of the TFT graphics can be reduced, and the yield of products can be increased.

The invention relates to a new LED photoetching development process which is characterized by comprising the following steps: filling a developing tank with developing solutions: two parts of 0.8% sodium hydroxide solution and two parts of 2.38% tetramethyl ammonium hydroxide aqueous solution; setting the parameters of a developer and swinging a swing arm of the developer up and down; placing wafers on a flower basket, putting the flower basket full of the wafers on the swing arm of the developer, and shaking in the developing solution; developing the N electrode with the 0.8% sodium hydroxide solution; developing ITO with 0.8% sodium hydroxide solution; developing the P and N electrodes with 2.38% tetramethyl ammonium hydroxide aqueous solution; taking the wafer out of the developing tank and cleaning with deionized water in a cleaning tank so that the water resistance reaches 5M(omega)*cm; and drying with a hot nitrogen dryer. The process disclosed by the invention is simple to operate, controls the developing process accurately and can effectively reduce the phenomenon of halfway or excessive developing.

The invention relates to a cleaning solution for a dry plate developing tank and a cleaning method thereof. The cleaning solution comprises the components of cerium ammonium nitrate, perchloric acid and de-ionized water; the ratio of the cerium ammonium nitrate, the perchloric acid and the de-ionized water is 1-13g:1-20ml:25-2000ml. The cleaning method for the developing tank comprises the following steps of: (1) draining the waste developing solution in the developing tank, cleaning the developing tank by the de-ionized water, and draining the waste solution after the cleaning operation is finished; (2) injecting the cleaning solution of the dry plate developing tank to the developing tank, cleaning the developing tank and recycling the waste cleaning solution after the cleaning operation is finished; and (3) adding the phosphate-free cleaning agent to the developing tank and washing the developing tank by the de-ionized water till no foam exists. The cleaning solution for the dry plate developing tank, provided by the invention, can rapidly and effectively remove black silver ions and strong oxidizing residues, thereby preventing black type or mildew type defects on the surface of the dry plate in the developing process.

The invention relates to an online water quality analysis device which comprises a control module, a sample injection module and a flow path switching module. The online water quality analysis device further comprises a distillation module and a detection module, wherein the distillation module comprises a distillation pot, a cooler, a condenser and a condensation pipeline; an anti-bumping pipe is arranged in the distillation pot; the outlet of the condensation pipeline stretches into a fraction tank and is in non-sealed connection with the fraction tank; the detection module comprises a fraction tank, a light source and a detector; the fraction tank is used for receiving the distilled distillate and serves as a color developing tank and a detection tank; the light source and the detector are used for judging the distillation end point and fixing the volume of the distillate. The invention also discloses an online water quality analysis method. The device disclosed by the invention has the advantages of simple structure, high degree of automation, high reliability and the like.