一、绪言在加热鋁箔与鋁板时,由于气氛中水分所引起的气泡問題,在以前的文章中已經談过了。即:这种气泡常发生在再結晶的晶粒边界处,和熔化与鑄造时由于吸收氢所引起的气泡相比,一般說来形状要小些,但其数量与气氛的条件大有关系。另外,这种气泡也与鋁的純度及板的厚度有关,純度越高,气泡发生的越显著。在厚度方面,鋁板越薄,气泡发生的越显著,特别是,当厚度为0.1毫米以下时, I. INTRODUCTION Bubble problems caused by moisture in the atmosphere when heating aluminum foil and aluminum have been discussed in previous articles. That is, this bubble often occurs at the grain boundaries of recrystallization, and is generally smaller in shape than the bubble caused by hydrogen absorption when melted and cast, but its quantity is greatly related to the atmosphere conditions. In addition, the bubbles are also related to the purity of aluminum and the thickness of the plate. The higher the purity, the more pronounced the occurrence of bubbles. In terms of thickness, the thinner the aluminum plate, the more pronounced the bubbles are. In particular, when the thickness is 0.1 mm or less,