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Electron Beam Welding Machine

 
Description of electron beam welding machine:
Electron beam welding machine adopts high technology, making electron beam current penetrate into workpiece in extremely high speed and energy density, under high voltage and vacuum condition. And such strong electron kinetic energy will transfer into heat energy very quickly and thus melt local position of workpiece and so weld it.
Electron beam welding machine is comprised of electron gun, high voltage power, vacuum system, vacuum welding chamber, electric control system, worktable moving system, etc.



Main advantages of electron beam welding method:
-- During welding, no welding wire or agent
-- Super-high precision welding, welding deepness can be controlled within 0.05~100mm range
-- High ratio between welding seam deepness and width, can be more than 60:1
-- Small heat effecting area, small deformation after welding
-- NC high precision welding, suitable for complicate shapes.
-- Welding seam doesn’t need to be retreated
-- High speed, high efficient, for batch production
-- Can weld different kind of metals, including two different metals and infusible metals



Main features of electron beam welding machine:
-- Three high voltage supplying methods: IGBT high-frequency switch power, medium-frequency power, thyristor.
-- Direct-heat oil-cooling clamshell type electron gun is of high-voltage resistant igniting structure, suitable for long time continuous work in production line.
-- Equipped with “+” centering CCD observing system
-- OMRON PLC control, industrial HMI control & display
-- Duplex over-voltage & over-current quick protection system, with discharge restraining quick blocking function.
-- Error diagnosing & displaying function
-- Full digital setting, dynamical curve displaying main parameters
-- Linkage between CNC worktable and electron-beam axis is optional
-- Accelerating voltage can work permanently under 120% rated value.



 
Main parameters of electron beam welding machines:
Code Electron beam power (KW) Accelerating voltage, max. (KV) Electron beam current, max. (mA) Max. welding deepness
(stainless steel, mm)
THDW--1A 1 30 35 3
THDW--3A 3 30 100 9
THDW--3 3 60 50 13
THDW--6 6 60 100 25
THDW--9 9 60 150 35
THDW--12 12 60 200 40
THDW--9C 9 150 60 40
THDW--15C 15 150 100 60
THDW--20C 20 150 130 80
THDW--30C 30 150 200 100


Main technical index of electron beam welding machine:
Item Company Standard National Military Standard DIN32505 Standard
Acceleration voltage Ripple factor 1%
(peak-peak)
------ 2%
(peak-peak)
Stability ±0.5% ±1% ±1%
Repeatability ±0.5% ±1% ±1%
Beam current Ripple factor 2%
(peak-peak)
------ 5%
(peak-peak)
Stability ±0.5% ±1% ±1%
Repeatability ±0.5% ±1% ±1%
Focusing current Ripple factor 2%
(peak-peak)
------ 0.5%
(peak-peak)
Stability ±0.1% ±0.1% ±0.5%
Repeatability ±0.1% ±0.1% ±0.5%
Welding speed Stability ±1% ±2% ±1%
Repeatability ±1% ±2% ±1%

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