38 results about "Electron-beam technology" patented technology

This invention relates to a process for making articles antimicrobial and odor inhibiting, which comprises using vacuum deposition and electron beam techniques to graft amino-reactive functional groups onto polymeric material which the article comprises, followed by contacting the polymeric material with a chitosan solution.

Belonging to the technical field of thermal barrier coating surface treatment and modification, the invention in particular relates to a thermal barrier coating material with a closed surface layer and a preparation method thereof. The coating material comprises a metal bonding layer, a rough and porous ceramic surface layer and a cylindrical crystal remelted layer with a closed surface layer. The invention also discloses a preparation method of the thermal barrier coating material with a closed surface layer, and the method includes: depositing the metal bonding layer on the surface of a high temperature alloy substrate by plasma spraying, then depositing the ceramic layer on the surface of the bonding layer, and finally conducting irradiation treatment on the ceramic layer by a high current pulsed electron beam technology, thus forming the closed cylindrical crystal remelted layer. The thermal barrier coating material with a closed surface layer prepared by the composite technology can effectively block invasion of external harmful gas and improve the strain tolerance and thermal shock performance of the coating, and has good high temperature service performance, thus being an ideal thermal barrier coating.

This invention proposes, among other things, systems and methods for providing ozone generators or plasma generators that generate an electric field in an electron generation chamber that is separate from a reaction chamber. An electron beam emitter in an electron generation chamber is configured to emit a beam of electrons and is separated from the reaction chamber by an electron permeable barrier that provides a window through which the beam of electrons passes. The electrons are accelerated to the required energy in the electron generation chamber and transmitted through the barrier to the reaction chamber, where an input gas source introduces an input gas into the reaction chamber. The input gas may react with the beam of electrons inside the reaction chamber to form an output gas comprising a plasma or a concentration of ozone, and the output gas passes from the reaction chamber to a wafer processing chamber.

The invention discloses a cotton fabric hydrophobic finishing method based on an acrylics-modified silicon ball-electron beam technology, and belongs to the field of functional textiles. The method disclosed by the invention adopts an electron beam radiation technology, the method can react under room temperature, the energy consumption is low, an initiator does not need to be added, the reaction time is short, and the production cost can be obviously reduced; long-chain acrylic acid can be selected and used as monomers, so that the free energy of fabric surface can be obviously reduced, and meanwhile the environment-friendly problem easily generated by a fluorine-containing reagent is avoided; the roughness of the fabric surface can be improved through the addition of modified silicon dioxide, and meanwhile the problem, such as low adhesion caused by pure physical absorption, of silicon dioxide silicon balls is avoided. According to the method in which the lower surface energy is combined and the fabric surface roughness is improved, textiles with high hydrophobic performance are obtained through an electron beam one-step radiation graft polymerization technology.

The invention provides an integrated circuit method and an integrated circuit design system. The integrated circuit (IC) method includes receiving an IC design layout; and performing an inverse beam technology (IBT) process to the IC design layout, thereby generating a final mask pattern, wherein the IBT process uses a single IBT model to simulate both a mask making process and a wafer making process.

The invention provides a device and a method for preparing a hard carbide ceramic coating based on composite treatment of a large-area high-current pulsed electron beam, and relates to a device and a method for preparing the hard carbide ceramic coating, solving the problem that the conventional large-area high-current pulsed electron beam technology can not be used for ceramic coating treatment because the coating is subjected to arc discharge to be damaged due to charge accumulation effect when performing electronic beam irradiation treatment on the ceramic coating. The device is characterized in that a vacuum pump set is connected with a vacuum chamber; a rotary sample platform is placed in the vacuum chamber; a metal target is placed at one side opposite to the vacuum pump set; a graphite target and an electronic gun are correspondingly arranged; and four heaters are uniformly distributed on an inner wall of the vacuum chamber. The method comprises the following steps: placing a pre-processed component to be processed on the rotary sample platform to be opposite to the graphite target and the metal target; coating N layers of films, and then irradiating by the electronic gun; and heating by the heater to execute returns processing; and then maintaining the temperature and cooling, thus accomplishing the preparation. The device and method are applicable to the field of material surface treatment.

The invention relates to a reinforced phase regulation and control method for a TiB reinforcing titanium-based composite. The reinforced phase regulation and control method comprises the following steps that firstly, an electron beam technology is utilized to conduct melting treatment on the TiB reinforcing titanium-based composite; and then the melted composite is subjected to low-temperature aging treatment. According to the reinforced phase regulation and control method for the TiB reinforcing titanium-based composite, the nano-scale reinforced phase and the sub-micron TiB reinforced phasecan be obtained and distributed in a net structure, and the titanium-based composite has the excellent mechanical property.

The invention discloses a cotton fabric hydrophobic finishing method based on acetic anhydride-acrylics-electron beam technique and belongs to the field of functional textiles. According to the method, cotton fiber is esterified with acetic anhydride firstly, and then cotton fabric is treated with an acrylic reagent dissolved in an alcohols solvent by means of electron beams, so that textiles with hydrophobic property are obtained. Compared with alkanes or olefin solvents, the alcohols solvent has the advantages of being low in toxicity, low in irritation, low in cost and the like. By the adoption of the method, environment problems caused by perfluorinated hydrophobic auxiliaries can be avoided, chemical bonding between fiber macromolecules and functional macromolecules can be achieved through electron beam irradiation, an obtained product is high in uniformity and repeatability and low in cost, and the degree of damage to fabric is low. The method can be used for hydrophobic finishing of cotton fabric.

The present invention concerns a method of using Electron-beam technology to remove recalcitrant organic matter and/or volatile organic compounds from a target water sample or other fluid samples. A fluid is directed into a first vessel; and a beam of electrons from an electron beam generator is used to irradiate the fluid. Specifically, once the water is loaded into a first vessel and the organic contaminants are absorbed to saturation levels, a control sensor initiates influent water to be directed to a second vessel while the first vessel is isolated and desorbed using an energy means such as heat or microwave. The desorbed materials are directed through a common manifold containing an E-beam. The E-beam is then used to destroy organic matter desorbed from the first vessel. VOCs may be treated in this way as well, or they may be treated directly without first sorbing and desorbing prior to irradiation.

The invention discloses an automatic astigmatism eliminating electronic gun and an automatic anastigmatism method of an electron gun, which adopt a split Rogowski coil as a detection element and combine a pulsed electron beam technology to realize the non-contact detection of the spot morphology of an electron beam. The split Rogowski coil outputs differential mode signals and takes the minimum value of detection signals as a correction target of the astigmatism elimination device, so that the processing mode of the detection signals is simplified, the influence of common-mode interference signals is eliminated, and the detection sensitivity and precision are improved. And the exciting current of the optimal astigmatism eliminating device is searched for in a split-axis mode, and rapid searching is achieved. The weighted value of the amplitude and the average value of the detection signal can fully reflect the difference of the electron beam spot morphology, the weighted value comprehensive data is used as the judgment basis, the optimal value is searched and confirmed for two rounds, the reliability is further improved, and the randomness is further reduced.

A method for writing data to an optical medium includes directing intermittent pulses of a beam of electrons from an electron source onto an optical medium in a controlled pattern for creating surface features on the optical medium, the surface features representing data. A system for performing this method, according to one embodiment, includes a medium receiving portion for holding an optical medium, an electron source for emitting a beam of electrons at the optical medium on the medium receiving portion, and a steering mechanism for directing the electron beam onto the optical medium in a controlled manner. The beam of electrons strikes the optical medium in intermittent pulses for creating surface features on the optical medium, the surface features representing data.

The invention discloses a method for realizing 3D printing by using an electron beam thermosetting resin material. Resin is conventional thermosetting resin, a heat source is a fine micro-nano array electron beam source specially applied to rapid curing of the thermosetting resin; as for the resin fully paved with substrates, an electron beam heating source is controlled by adopting single fine electron beam quick scanning or large-area electron beam sources, switches or other mechanical means, thermal curing of the resin is achieved, and next-layer resin coating, full tiling and selective thermal curing are carried out, and a 3D printing process is achieved. A current thermosetting 3D printing technology cannot meet the high-precision 3D printing requirement; a high-precision 3D printinglight-curing 3D printing technology is achieved, photocurable resin or an optical system are expensive, and widespread application and popularization are difficult to achieve. The method achieves fine3D printing of the thermosetting resin, and the electron beam technology is applied to a 3D printing process of the resin material.

The invention provides metal plate surface treatment equipment, and belongs to the field of metal non-cutting processing treatment. The metal plate surface treatment equipment comprises a sealing chamber, an electric spray gun, a vacuum device, an operating device, a carrier and a driving device. Based on mechanical automation and electron beam technology, the operating device, the carrier and thedriving device are used for driving a metal part to stably operate so as to fully receive electroplated particles to complete surface coating and surface alloying, and finally a stable alloy state isformed at the coating and the base of the metal part. The equipment can be widely applied to the fields of alloy sheets, metal precision machining and the like, and has the advantages of high automation degree, safety, reliability, no pollution and the like.

In the electron-beam physical vapor deposition process, double evaporation source and double electron-beam are used to evaporate metal and ceramic rod and the rotation speed of the substrate and the evaporation rate of both metal and ceramic are regulated to obtain nano composite film with different components. Specially, the process includes setting N6 or W on ferro-silicon alloy and Fe-Ni alloy rod, setting alloy rod and ceramic rod in two crucibles separately, installing substrate, pumping to required vacuum rotating the substrate, heating the substrate, evaporating alloy rod and ceramic rod separately, opening the baffle to deposit and other steps.

The invention particularly relates to a method for improving fatty acid of frozen hairtail by using electron beam irradiation, which adopts a high-energy electron beam technology with the dosage of 1-7kGy to irradiate the frozen hairtail subjected to viscera removal, dicing and vacuum packaging, and finds that the irradiation effectively reduces the content of saturated fatty acid and trans fatty acid harmful to human health in the hairtail, and the content of fatty acid is reduced. And the content of unsaturated fatty acid beneficial to human health is increased. On one hand, the applied high-energy electron beam irradiation technology is an efficient, green and pollution-free processing technology, and the method is simple in process, environmentally friendly, free of residues and suitable for large-scale application; on the other hand, the technology can effectively improve the fatty acid quality of the hairtail, the nutritional value of the hairtail is improved to a certain extent, and a basis is provided for processing and application of related aquatic products. Considering from the aspects of energy conservation and nutritional quality, the optimal dosage of fatty acid suitable for improving frozen hairtail is 3kGy.

The invention discloses a method for preparing a metal-based composite coating on the surface of stainless steel. The method comprises the steps that a TiBCN coating is prepared on the surface of stainless steel by a laser cladding technology in a synchronous powder feeding manner under the condition of inert gas, then, a laser cladding layer is uniformly polished by using a high-current pulsed electron beam technology, and finally, an aluminum oxide ceramic layer with uniform thickness is prepared by utilizing a micro-arc oxidation technology, so that high hardness and good wear resistance of the coating are realized.

The invention particularly relates to a method for guaranteeing the quality of frozen hairtail by utilizing electron beam irradiation, the method adopts a high-energy electron beam technology to irradiate the frozen hairtail which is subjected to viscera removal, dicing and vacuum packaging, and the preferable dosage suitable for the frozen hairtail is 1kGy from the aspects of energy conservation and shelf life prolonging. The dosage basically does not damage the nutritional ingredients of the hairtail, effectively inhibits the generation of trimethylamine in hairtail meat, inhibits the increase of volatile basic nitrogen in the storage process, and prolongs the storage period of the hairtail. On one hand, nutritional ingredients such as moisture, water activity and crude fat of the frozen hairtail are basically kept unchanged; on the other hand, the high-energy electron beam irradiation technology is utilized, so that the decay process of the hairtail can be efficiently slowed down in an energy-saving and pollution-free manner, and the shelf life of the frozen hairtail is prolonged to a certain extent. The method is simple in process, environmentally friendly, free of residues and suitable for large-scale application, the shelf life of the frozen hairtail can be effectively prolonged, and an application basis is provided for storage of related aquatic products.