11 results about "Electron beam processing" patented technology

The invention discloses a preparation method of a functionally graded material without prefabricated powder addition, which specifically comprises the following steps: step 1, pretreatment: cutting and milling a test block workpiece, processing the test block workpiece into a fixed size and shape, and then cleaning the processed workpiece by using an ultrasonic cleaning machine; step 2, preparing a sample, and polishing the test block by using a metallographic polishing machine until the test block is polished; 3, electron beam treatment, wherein electron beams are adopted for conducting multiple times of irradiation treatment on the sample. And 4, tissue and performance testing is conducted, specifically, the microstructure is observed through a scanning electron microscope, and the mechanical performance of the functionally graded material is detected through a Vickers hardness tester. The method disclosed by the invention can be used for quickly synthesizing the functionally graded material without prefabricated addition, and has an extremely good application scene.

The invention discloses an electron beam focusing parameter adaptive calibration method based on regional recursive splitting and analytic field guidance, and belongs to the technical field of electron beam equipment precision control. In order to solve the problems of low full-field uniform sampling efficiency and poor sparse sampling precision in large-view-field electron beam processing, the invention provides a dual-drive adaptive sampling strategy. According to the method, a theoretical curvature distribution diagram is constructed by using an electron optical analytical field to serve as prior guidance, and a distortion sensitive area in a view field is identified according to a multi-dimensional feature fusion criterion of physical prior, differential field nonlinearity and an actual measurement form; a recursive regional geometric subdivision structure is adopted to perform recursive splitting and encrypted sampling on the sensitive region, and narrow window rapid search is realized in combination with a parameter inheritance strategy; and finally, reconstructing a full-field high-precision model based on a scattered data interpolation algorithm. According to the method, sparse sampling can be automatically carried out in the smooth field curvature change region, encryption sampling can be carried out in the severe distortion region, and the calibration efficiency is remarkably improved on the premise of ensuring high focusing precision.

The invention discloses an impurity-free and high-wear-resistant modification method for 2Cr13 stainless steel, which specifically comprises the following steps: step 1, pretreatment: cutting and milling a test block workpiece, processing the test block workpiece into a fixed size and shape, and then cleaning the processed workpiece by using an ultrasonic cleaning machine; step 2, preparing a sample, and polishing the test block by using a metallographic polishing machine until the test block is polished; 3, electron beam treatment, wherein electron beams are adopted for conducting continuous scanning treatment on the sample. And 4, tissue and performance testing: observing the microstructure by adopting a scanning electron microscope, measuring the hardness by utilizing a microhardness tester, and detecting the wear resistance by utilizing a friction wear testing machine. According to the method disclosed by the invention, the surface hardness, the wear resistance and the corrosion resistance of the 2Cr13 stainless steel can be remarkably improved, and the method has an extremely good application scene.

The invention discloses a method for inducing nanocrystallization of the surface of die steel. The method comprises the following steps: (1) pretreatment: cleaning the surface of a milled workpiece by using an absolute ethyl alcohol solvent; (2) drying treatment is conducted, specifically, the pretreated workpiece is placed in a drying box and heated to 60-75 DEG C, and the dried workpiece is obtained; and (3) scanning electron beam processing. According to the technology adopted by the invention, nanocrystals can be generated on the surface of the 5CrNiMo die steel, the comprehensive performance is improved, and the technology has wide market popularization value.

The invention discloses a method for improving the wear resistance of Cr12MoV steel. The method comprises the following steps: (1) pretreatment: cleaning the surface of a milled workpiece by using an absolute ethyl alcohol solvent; (2) drying treatment is conducted, specifically, the pretreated workpiece is placed in a drying box and heated to 50-65 DEG C, and the dried workpiece is obtained; and (3) scanning electron beam processing. The process adopted by the invention can quickly and remarkably improve the wear resistance of the Cr12MoV steel, and has wide market popularization value.

The utility model discloses an EB (electron beam) coated solid wood composite floor, which is characterized in that a base material layer, a wood veneer layer, a primer layer and an EB wear-resistant coating are sequentially arranged from bottom to top, the upper surface of the wood veneer layer is provided with micro-embossment texture patterns, and the EB wear-resistant coating is formed by curing EB coating through EB electron beam treatment. The EB wear-resistant coating is formed by curing EB coating through EB electron beam treatment, six working procedures for manufacturing the UV wear-resistant primer layer in the prior art are simplified into two working procedures, the curing speed of EB electron beam treatment is high, the coating working procedures can be reduced, the coating curing time can be shortened, the production time of the solid wood composite floor is greatly shortened, and the production efficiency can be improved. The EB wear-resistant coating has excellent wear resistance and hardness, and the EB wear-resistant coating has relatively high tensile strength and relatively high elongation at break, so that the EB wear-resistant coating has excellent flexibility, the impact resistance of the floor is improved, the EB wear-resistant coating is not easy to crack, and the EB wear-resistant coating can effectively replace wear-resistant thin coating in the prior art.

Aspects of the disclosure relate to manufacturing a balloon envelope for use in a stratospheric balloon system using an improved double-bubble blown-film extrusion process with water quenching and electron beam processing. A stream of polyethylene mixture is extruded through an extruder to orient molecules of polymer chains and provide an oriented film. The oriented film is passed through an electron beam, crosslinking the polymer chains to produce a cross-linked film with enhanced mechanical properties. The cross-linked film is heat sealed to form the balloon envelope comprising multiple gores. The resulting balloon envelope exhibits superior characteristics including crystallinity greater than 50%, strength to weight ratio greater than 1 MPa / (dtg / cm3), thickness less than 1.5 mil, thermal emissivity less than 0.03 at 193K, and optical clarity greater than 95%. The manufacturing process may include water quenching to enhance optical clarity and dual electron beam treatment for uniform crosslinking throughout the film thickness.

The present application relates to the field of industrial control technology, disclose a kind of electron beam power self-adapting regulation control method and system, the method includes: real-time acquisition electron beam processing workpiece beam amplitude, power output voltage, focusing coil current, according to fixed time window construction power timing adjustment sequence;Beam amplitude variation rate deviation is analyzed based on timing adjustment sequence, obtain amplitude deviation, closed-loop control output voltage, obtain power amplitude correction amount;According to beam amplitude drop rate analysis power output carrier phase characteristics, real-time calibration phase, obtain power phase correction amount;Phase correction amount is mapped as focusing coil current constraint adjustment coefficient, according to amplitude deviation variation gradient setting threshold, obtain focusing current constraint amount;According to beam amplitude drop rate dynamically weighted setting each correction amount, constraint amount, obtain power fusion driving control amount;Fusion driving control amount is input into power control terminal, complete electron beam power self-adapting regulation control.

The invention discloses an optimization method for improving the uniformity of a quadrupole anastigmatic magnetic field based on finite elements, which mainly uses comsol finite element software to carry out quadrupole anastigmatic magnetic lens magnetic field distribution simulation in an electron beam processing process, and carries out modeling in the comsol software according to an actual model. The magnetic field distribution of the quadrupole anastigmatic magnetic lens is optimized by defining material attributes and meshing, the magnetic field distribution conditions under different coil inner diameters and different pole shoe thicknesses can be obtained through the finite element method, the optimal magnetic field uniformity is obtained by optimizing the inner diameter of the magnetic lens and the pole shoe thickness, and the magnetic field uniformity is improved. A key insight is provided for physical research of electron beam anastigmatism, and the method is of great significance to development and optimization of high-performance scientific instruments.

A kind of electron beam processing equipment acceleration power dynamic index detection method, steps include setting dynamic index, and constructing dynamic index calculation model;Wherein, dynamic index includes acceleration voltage fluctuation rate and acceleration voltage recovery time;Through detection system simulation generation working condition dynamic model;Through dynamic index calculation model, the dynamic index under each working condition is calculated, and the calculation results are summarized and output;The present application realizes the index detection of the anti-interference performance of acceleration power under the transition process of multiple working conditions.

The application discloses a high-efficiency and low-consumption transmission device for treating wastewater by an electron beam, which comprises a drainage pipe, wherein the drainage pipe extends below an electron accelerator, an included angle between at least a partial pipe section of the drainage pipe and a horizontal plane is an acute angle, a bottom end of the drainage pipe is connected to an irradiation effluent pool, and a top end of the drainage pipe is higher than the irradiation effluent pool; liquid entering the drainage pipe from the top of the drainage pipe flows downward under the action of gravity, passes below the electron accelerator, flows into the irradiation effluent pool after being irradiated by an electron beam, and is treated by the electron beam. The drainage pipe of the application extends in a height direction and is inclined, sewage entering from the top of the drainage pipe flows under the action of gravity and passes below the electron accelerator, and is treated by the electron beam. The transmission device mainly relies on gravity to provide water flow power, does not need to be provided with high-power water pumps and other electric equipment, has the advantages of reducing operation cost, reducing noise, saving energy and reducing energy consumption.