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AN ELECTRON GUN USED FOR ELECTRON BEAM WELDING

Yao Ru-bi

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Abstract

The electron beam welding for automobile transmission gears reduces its'costand decreases its'axial size.When the tolerance clearance is suitable,the pre-cision and strength of the welded parts are very high,but the content of thecarbon in its'material must be limited in a certain range.The electron beamwelder stands up all tests of mass production.In using it is found that the lifespan of the cathod is short,the focus of the electron beam changes along withthe beam current.It will be a problem in future electron gun study.This paperanalyzes the factor producing it.

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What this paper is about

The electron beam welding for automobile transmission gears reduces its'costand decreases its'axial size.When the tolerance clearance is suitable,the pre-cision and strength of the welded parts are very high,but the content of thecarbon in its'material must be limited in a certain range.The electron beamwelder stands up all tests of mass production.In using it is found that the lifespan of the cathod is short,the focus of the electron beam changes along withthe beam current.It will be a problem in future electron gun study.This paperanalyzes the factor producing it.

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Available abstract

The electron beam welding for automobile transmission gears reduces its'costand decreases its'axial size.When the tolerance clearance is suitable,the pre-cision and strength of the welded parts are very high,but the content of thecarbon in its'material must be limited in a certain range.The electron beamwelder stands up all tests of mass production.In using it is found that the lifespan of the cathod is short,the focus of the electron beam changes along withthe beam current.It will be a problem in future electron gun study.This paperanalyzes the factor producing it.

Key concepts: Electron beam welding, Electron gun, Welding, Cathode ray, Range (aeronautics), Beam (structure), Materials science, Electron

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