Electron beam processing system capable of realizing multiple electron beam center wire feeding

An electron beam processing and electron beam technology, applied in the field of electron beam processing systems with multi-electron beam center wire feeding, can solve the problems of economic loss, inability to cut the wire material, unable to accurately control the amount of wire material entering, etc., to prevent leakage , The effect of improving processing efficiency and improving quality

Inactive Publication Date: 2020-06-09
宁夏中科农副产品辐照中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the silk cannot be cut, the remaining silk will stick to the product after the processing is finished, and when the wire is fed, the silk will drop by gravity, and the entry of the silk cannot be controlled accurately amount, and the metal vapor produced during processing cannot be effectively utilized, resulting in economic losses. An electron beam processing system with multi-electron beam center wire feeding is provided.

Method used

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  • Electron beam processing system capable of realizing multiple electron beam center wire feeding
  • Electron beam processing system capable of realizing multiple electron beam center wire feeding
  • Electron beam processing system capable of realizing multiple electron beam center wire feeding

Examples

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Effect test

Embodiment 1

[0039] As a preferred embodiment of the present invention: a filament is provided on the top of the electron gun, a cathode is connected to the bottom end of the filament, an anode is arranged directly below the cathode, and one side of the cathode is connected to the vacuum system set, the An electromagnetic lens is provided directly below the anode, a deflection coil is provided directly below the electromagnetic lens, and the bottom end of the deflection coil is connected to the muzzle of an electron gun;

[0040] After the filament is energized and heated, a large number of thermal electrons are generated on the surface. Under the action of the high-voltage electric field between the anode and the cathode, the thermal electrons accelerate to move toward the anode at a high speed, and enter the battery lens. The axial magnetic field generated by the electromagnetic lens and the electron beam The centerline is parallel, and the radial magnetic field is perpendicular to the ce...

Embodiment 2

[0042] As a preferred embodiment of the present invention: the material of the filament is made of tungsten wire, a high voltage is connected to the outside of the cathode and the anode, and the pressure of the high voltage is 50,000 volts to 150,000 volts. There are two groups of electromagnetic lenses, two groups of deflection coils, and each group of deflection coils is perpendicular to each other;

[0043] By changing the voltage between the cathode and the anode, the moving speed of the electrons can be changed, thereby changing the strength of the electron beam. The deflection coil can change the deflection angle of the electron beam within a certain range, thereby changing the processing position.

Embodiment 3

[0045]As a preferred embodiment of the present invention: a wire feeding tube is provided at the top of the feeding device, the wire material enters into the wire feeding tube through the wire storage box, a transmission motor is installed on one side of the wire feeding tube, and the transmission motor runs through the The wire feeding pipe extends to the inside of the wire feeding pipe and is connected with a transmission wheel. The inside of the wire feeding pipe is located directly below the transmission wheel with a knife knife, and the bottom end of the wire feeding pipe is provided with a wire feeding nozzle. The wire feed nozzle is located above the workpiece, and a cooling pipe is arranged on the outside of the wire feed nozzle;

[0046] The transmission wheel can control the movement of the wire, thereby controlling the amount of feed during processing and improving the accuracy of processing. The knife can cut the wire so that the wire will not stick to the product w...

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PUM

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Abstract

The invention discloses an electron beam processing system capable of realizing multiple electron beam center wire feeding, and relates to the field of electron beam processing. The electron beam processing system comprises an electron gun and a rotating motor, wherein the electron gun is used for a device generating, accelerating and converging high-energy-density electron beam flows and emits electron beams with certain energy, a certain beam flow, a certain speed and a certain angle, and the rotating motor is used for changing the angle of the electron gun so as to change the illumination angle of the electron beams on a workpiece and used for adjusting the working state. By arranging a diffusion pump, a mechanical pump, an exhaust port and a deposition film, when the electron beams melt the workpiece and wire materials, part of metal is vaporized, at this time, the mechanical pump is firstly started to vacuumize a working chamber, and then oil liquid in the diffusion pump is heatedthrough a heater, so that the oil liquid generates high-speed steam to penetrate through a vacuum extraction opening to extract metal gas generated in a vacuum chamber and exhaust the metal gas fromthe exhaust port, and the problem that metal steam cannot be recovered is solved effectively.

Description

technical field [0001] The invention relates to the field of electron beam processing, in particular to an electron beam processing system for central wire feeding of multiple electron beams. Background technique [0002] Electron beam processing uses the thermal effect of electron beams to perform surface heat treatment, welding, etching, drilling, melting, or directly sublimate materials. As a heating tool, electron beams are characterized by high power and high power density. The energy is transmitted to the workpiece instantly, the parameters and position of the electron beam can be adjusted accurately and quickly, and it can be controlled by a computer and processed in a pollution-free vacuum. According to the difference in the power density of the electron beam and the interaction time between the electron beam and the material, it can be Complete a variety of processing. [0003] Today’s existing electron beam processing systems usually use gravity powder feeders or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K15/00B23K15/06
CPCB23K15/00B23K15/0026B23K15/06
Inventor 张永生
Owner 宁夏中科农副产品辐照中心有限公司
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