The invention discloses a vacuum
electron beam
welding method for an aluminum
alloy metal diaphragm
storage tank. The method comprises the following steps of (1)
processing two hemispherical electronbeam
welding tools, wherein six notches are uniformly distributed on the hemispherical
electron beam
welding tools; (2) clamping a support ring, a
metal diaphragm and an
air cavity shell by utilizinga first
electron beam welding tool; (3) firstly, positioning and welding the support ring and the
metal diaphragm in a segmented mode, secondly, positioning and welding the support ring and the
air cavity shell through the gap of a tool, and finally, welding the support ring and the metal diaphragm through electron beams in the whole circumference; (4) removing the first
electron beam welding tool, clamping all the components on the second
electron beam welding tool, wherein a liquid cavity shell is located below the second electronic beam welding tool, firstly positioning and welding the support ring and the liquid cavity shell through the gap of the tool at first, and welding the support ring and the
air cavity shell by the electron beams in the whole circumference; and (5) removing thesecond
electron beam welding tool, clamping the product by using the first electron beam welding tool, and welding the support ring and the liquid cavity shell by using the electron beams in the wholecircumference. Through the method disclosed by the invention, the
internal quality qualification rate and the welding
line strength of the electron beam welding line of the aluminum
alloy metal diaphragm
storage tank are improved.