8.6 Summary
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(5) Raising heat input will facilitate the permeation of wire compositions to the
bottom of the weld joint, increase the content of wire compositions in the
middle-lower part of the weld joint, and reduce the content in the middleupper part of the weld joint. Reducing heat input can effectively reduce the
content of wire compositions in the middle-lower part of the weld joint, and
increase the content of wire compositions in the middle-upper part of the weld
joint.