33results about How to "Reduce removal time" patented technology

A gravity valve for a downhole tool for use in a subterranean well is described, as is a method of use thereof. The gravity valve is adapted to control the flow of a downhole fluid through the downhole tool. The gravity valve typically includes a plunger and a seat. The plunger may embody a substantially non-spherical end that is adapted to mate with a complementary receiving end on the seat. The increase surface area of contact between the plunger and the seat acts to improve the seal therebetween, reduce the stresses thereon, and improve the performance of the gravity valve in general. The components of the gravity valve may be constructed of materials, which are selected based on the specific gravity of the materials in comparison with the specific gravity of the downhole fluid for a given application. A method of constructing and utilizing the gravity valve is disclosed.

A backrest structure of a foldable safety seat includes a backrest, a spindle on both lateral sides of the backrest, a lateral support portion having at least one movable axle at an end of the lateral support portion and coupled to the spindle of the backrest, an axle center on the backrest, a seat portion coupled to the axle center, a shaft on both lateral sides of the seat portion, and a lateral support plate having a movable axle at an end of the lateral support plate and coupled to the seat portion shaft, and the seat portion can be laid flat from the backrest, and the lateral support portion of the backrest and the lateral support plate of the seat portion can be unfolded and fixed to form a child safety seat with protective edges, so as to facilitate the operation, save space and reduce installation and removal time.

There is disclosed a method for removing bubbles from a slurry and a device therefor capable of efficiently optimizing the removal of bubbles from a slurry and the viscosity of the slurry as well as dramatically reducing the bubble removing time. The device for removing bubbles from a slurry comprises a hopper 1 for charging a predetermined amount of slurry 2 including liquid and a high concentration of solid material agitated and dispersed in the liquid with the slurry containing bubbles to be removed therein; a bubble removing unit 20 disposed downstream of the hopper 1 and having a bubble removing plate 10 disposed downstream of the hopper 1 for discharging the slurry2 containing bubbles to be removed therein in the form of and noncontact filaments or noodles; a slurry tank 3 connected downstream of the bubble removing unit 20; a vacuum unit 30 for evacuating the slurry tank 3 when the bubble removing unit 20 is used; and an air introduction unit 40 for introducing air for pressure-delivering the slurry 6 which is contained in the slurry tank 3 from the bubble removing unit 20 with bubbles removed to the outside.

The present invention relates to a fast extraction threaded nut intended to be used on a threaded bolt or male member wherein the fast extraction threaded nut comprises at least an outer face and an axial bore as to allow insertion of a male member or like, wherein the fast extraction threaded nut and the threaded bolt have tightening means with common geometry, and the fast extraction threaded nut and the threaded bolt or male member are intended to join or connect two elements that need to be attached or coupled to each other, wherein the fast extraction threaded nut comprises in at least the outer face a notch of variable section and the notching is formed by at least two faces wherein the maximum cross-section of the notch is positioned in the outer area and the minimum section is positioned prior to the axial bore at such a distance that allows for the generation of an increase area which extensively grows until reaching the inner surface of the axial bore where the common tightening means is formed thus generating the split of the fast extraction threaded nut.

The invention relates to the technical field of cell culture, in particular to a preparation method of a microcarrier. The preparation method of the microcarrier comprises the steps that a high-molecular polymer is dissolved in mixed solvent prepared from DMSO and NMP or pure NMP to obtain a high-molecular polymer solution; the high-molecular polymer solution is put into an electrostatic generator with a needle injection device, the high-molecular polymer solution is charged through high voltage static electricity, a liquid drop is formed at the tail end of a needle and drops into extracting solvent, and organic solvent in the liquid drop is quickly removed through a solvent extracting principle, so that the microcarrier is quickly prepared. According to the preparation method, the time needed by the microcarrier preparation process is shortened, and the advantages of being simple and efficient are achieved; the high-molecular polymer microcarriers with the uniform particle size can be continuously and controllably produced, and the purpose of precisely regulating and controlling the size and morphology of the microcarriers is achieved.

The invention discloses a method for removing a ring artifact of a CT (computed tomography) reconstructed image. The method comprises the following steps of: a, taking a center O point of the CT reconstructed image as a circle center; dividing the CT reconstructed image into N equal parts along the peripheral direction; b, setting the intersection points of all sector and the circumference orderly as Q1, Q2, Q3,..., and QN on a circumference of which the radius is R, calculating the value of each intersection point Qi on the circumference; c, calculating a ring artifact evaluation value PR of the circumference; d, if R is smaller than or equal to Rmax and greater than 0, gradually increasing or gradually reducing the radius R by taking n pixel points as step pitches; e, repeating the steps b, c and d, orderly calculating the evaluation value PR of each circumference; and f, judging according to calculated PR data, if an absolute value of PR is greater than T, judging that no ring artifact exists in an area, and g, removing the ring artifact. By adopting the removing method provided by the invention, the time spent on removing the ring artifact can be reduced; and the false detection of a ring artifact area can be reduced to a certain extent.

The present invention provides a polarizing sheet removing tool and removing method. The tool includes a handle and a blade mounted on the handle. The handle includes a main body, a piston device mounted on the main body, and a guide tube mounted on the main body. The main body forms therein a channel for containing an adhesive dissolving liquid. The piston device is mounted inside the channel. The guide tube has an end in communication with the channel and an opposite end positioned on the blade to guide the adhesive dissolving liquid contained in the channel to the blade. The present invention uses a tool on which a piston device and adhesive dissolving liquid are provided so that in removing a polarizing sheet, the adhesive dissolving liquid can be guided by a guide tube toward a blade for subsequently flowing toward and dissolving bonding adhesive.

A method for fabricating a non-volatile memory device with a three-dimensional structure includes forming a pipe gate conductive layer on a substrate, forming a pipe channel hole in the pipe gate conductive layer, burying a first sacrificial layer in the pipe channel hole, stacking interlayer dielectric layers and gate conductive layers on the pipe gate conductive layer including the first sacrificial layer, forming a pair of cell channel holes in the interlayer dielectric layers and the gate conductive layers, forming a second sacrificial layer on a resultant structure including the pair of cell channel holes, and forming a third sacrificial layer with etching selectivity relative to the second sacrificial layer on the second sacrificial layer and filling the cell channel holes with the third sacrificial layer.

In a method of chemically and mechanically polishing a layer, a substrate on which the layer having stepped portions is formed is prepared. The layer is primarily chemically and mechanically polished at a temperature of about 30° C. to about 80° C. to remove the stepped portions of the layer. The layer is secondarily chemically and mechanically polished without the stepped portions at a temperature of about 5° C. to about 25° C. to form a flat layer having a desired thickness. Thus, the stepped portions may be rapidly removed in an initial period so that the method may have an improved throughput.

The invention discloses a pressure-reduction drying system and method for a substrate. The pressure-reduction drying system comprises an airtight drying cavity (1). A drying platform (3) used for bearing the substrate (2) is arranged in the drying cavity (1). Vacuumizing holes (4) communicating with the interior of the drying cavity are further formed in the drying cavity (1). The pressure-reduction drying system is provided with a temperature controller (5). A heating structure (6) used for heating the substrate (2) is arranged on the drying platform (3). The temperature controller (5) is electrically connected with the heating structure (6) and used for controlling the heating temperature of the heating structure (6). According to the pressure-reduction drying system and method for the substrate, the heating structure is arranged on the drying platform for bearing the substrate, the heating temperature of the heating structure is controlled through the temperature controller, and time for removing a solvent of the substrate in the drying cavity is shortened under the dual effects of vacuumizing and heating, the drying efficiency is improved, and the productivity is improved accordingly.

The present invention relates to a fast extraction threaded nut intended to be used on a threaded bolt or male member wherein the fast extraction threaded nut comprises at least an outer face and an axial bore as to allow insertion of a male member or like, wherein the fast extraction threaded nut and the threaded bolt have tightening means with common geometry, and the fast extraction threaded nut and the threaded bolt or male member are intended to join or connect two elements that need to be attached or coupled to each other, wherein the fast extraction threaded nut comprises in at least the outer face a notch of variable section and the notching is formed by at least two faces wherein the maximum cross-section of the notch is positioned in the outer area and the minimum section is positioned prior to the axial bore at such a distance that allows for the generation of an increase area which extensively grows until reaching the inner surface of the axial bore where the common tightening means is formed thus generating the split of the fast extraction threaded nut.

An EVA sheet for a photovoltaic module comprising microparticles, the main component of which is an ethylene-vinyl acetate resin is provided.A method for manufacturing an EVA sheet for a photovoltaic module comprising the steps of: (a) preparing microparticles, the main component of which is an ethylene-vinyl acetate resin; (b) dispersing the microparticles; and (c) sintering the dispersed microparticles is provided.

A novel anti-deformation tie piece is characterized by comprising a tie piece body, a first fixing clamp and a second fixing clamp; the tie piece body is a long columnar metal body; the first fixing clamp and the second fixing clamp are of same structures and symmetrically arranged at the two ends of the tie piece body; the first fixing clamp comprises a first inner clamp body and a first outer clamp body; the second fixing clamp comprises a second inner clamp body and a second outer clamp body as well; by adjusting the positions of the first inner clamp body, the first outer clamp body, the second inner clamp body and the second outer clamp body, a casting is positioned and shaped in advance. The novel anti-deformation tie piece is designed for the welding repairing process of the casting, a traditional mode that the tie piece body is directly welded on the casting is changed, the slidable fixing clamps are arranged on the tie piece body; and meanwhile the fixed distance between the inner clamp bodies and the outer clamp bodies can be adjusted according to the various sizes of the castings, the tie piece can be reused, under the condition that the welding repairing quality is guaranteed, welding material waste is reduced, each casting can save tie piece welding materials by 20 kg, and meanwhile the welding repairing efficiency is improved greatly.

The invention discloses an efficient printing ink cleaning agent and a preparation process thereof. The ink cleaning agent comprises disodium cocoamphoacetate, octadecyl dihydroxy ethylamine oxide, sodium dodecyl benzene sulfonate, ferulic acid, soybean saponin, sodium sulfonate, nonylphenol polyoxyethylene ether, thiourea dioxide, alpha-lipoic acid, sodium tripolyphosphate, isopropyl myristate, zinc naphthenate, methylisothiazolinone, diethylene glycol methyl ether, propylene glycol, ethyl alcohol and deionized water. The printing ink cleaning agent is good in stability, the decontamination rate of the printing ink cleaning agent for ink is as high as 90.4%-96.1% within 5 minutes according to tests, complete ink removal time is shorter than 430 seconds, removal efficiency is high, and the ink cleaning agent is free from corrosion and good in market prospect, does not damage printing machinery and consumables, can ensure good printing effects, and is quite suitable for serving as a special ink cleaning agent in printing industry.

The invention provides a self-adaptive road surface point cloud rapid removal method, which comprises the following steps: acquiring point cloud data, and extracting bottom point cloud data based on the point cloud data; constructing a three-dimensional voxel grid for the bottom point cloud data, replacing the bottom point cloud data with the gravity center of each grid in the three-dimensional voxel grid, and obtaining new bottom point cloud data after replacing the bottom point cloud data; and based on an RANSAC algorithm, performing plane fitting on the new bottom point cloud data to obtain a road surface point cloud, and removing road surface points corresponding to the road surface point cloud. The method is used for solving the defects of poor ground segmentation effect and long consumed time in the prior art under the conditions that the proportion of ground points is too small and a plurality of road surface parameters exist in large-scene scattered point clouds, and the purposes of improving the removal effect, obtaining the plurality of road parameters, shortening the removal time and improving the time processing efficiency of ground removal are achieved.

An EVA sheet for a photovoltaic module comprising microparticles, the main component of which is an ethylene-vinyl acetate resin is provided.A method for manufacturing an EVA sheet for a photovoltaic module comprising the steps of: (a) preparing microparticles, the main component of which is an ethylene-vinyl acetate resin; (b) dispersing the microparticles; and (c) sintering the dispersed microparticles is provided.

The invention belongs to the technical field of mask production, and particularly relates to a method for removing frame glue and a device for removing the frame glue. According to the method for removing the frame glue, the mask plate and the aluminum frame are fixed in advance, then the aluminum frame is separated through the cutting tool, and then the polyethylene frame glue is scraped through the scraping tool. Specifically, the cutting edge of the scraping cutter is flush with the upper surface of the mask, so that in the cutting process of the scraping cutter, the scraping cutter does not damage the mask and does not affect secondary regeneration of the mask supported by the quartz substrate. The method used in the method is simple and effective, the time for removing the frame glue is greatly shortened, no organic solvent is used, and the environmental protection pressure is reduced.

There is provided a method of efficiently removing polymer stuck to the inside and / or on the surface of packings of a distillation tower, when nitrogen-containing polymerizable monomers (for example, ethyleneimine) are distilled. Said method consists of washing the inside and / or packings of a distillation tower with an acidic liquid (for example, aqueous solution of acetic acid).

This invention relates to a coating film remover composition comprising water, benzyl alcohol, and at least one kind of cellulose derivative, the coating film remover composition having a pH in the range of 5 to 9.

The invention discloses vaporized hydrogen peroxide residue removal equipment which comprises an atomization system and a spraying system, wherein the atomization system comprises a tray, a reducing agent storage tank, a peristaltic pump, a liquid suction pipe, a liquid conveying pipe, a backflow pipe, a connecting pipe, a box body, an air compressor, a support, an air inlet pipe, a Venturi pipe, a silencer and a rack; the tray is arranged on the box body; the reducing agent storage tank is connected with the peristaltic pump through a liquid suction pipe; the peristaltic pump is connected with the Venturi tube through an infusion tube; the Venturi tube is connected with the silencer and is connected with the injection system through a connecting pipe; the silencer is connected with the air compressor through an air inlet pipe; the peristaltic pump, the Venturi tube, the silencer and the bracket are all arranged on the rack; the injection system comprises a cavity, a fixing piece, a plurality of wind direction blades, a spray pipe and a nozzle, wherein the cavity is located in the injection system and connected with the Venturi pipe and the reducing agent storage tank through a connecting pipe and a backflow pipe; the injection system is fixed on the box body through the fixing piece; the nozzles are located on the periphery of the injection system; the spray pipe is connected with the nozzle and is communicated with the cavity; and the wind direction blades are arranged at the nozzle.

The invention aims at providing an immune magnetic particle for purifying aflatoxin samples and a preparing method and an application method thereof so as to solve technical problems in the prior art that aflatoxin sample purification and separation is complex in operation and low in separation efficiency and has large potential safety hazard. After aflatoxin antibodies and magnetic particles are reacted together for some time, the immune magnetic particle with specificity is prepared. After coarsely extracted aflatoxins and the immune magnetic particle are reacted together for some time, the aflatoxins are attached to the surface of the immune magnetic particle in affinity mode. After magnetic separation, the aflatoxin samples can be purified so that the relative pure aflatoxin samples can be obtained, and further the relative pure aflatoxin samples are used for fluophotometers, high performance liquid chromatographs (HPLCs) and enzyme-linked immuno sorbent assay (ELISA).