在建筑铝型材的生产过程中,铝阳极的封闭处理是一项极其重要的工序。目前,工业上使用的封闭方法主要有两种:一种是自1929年宫田发明的蒸汽封闭法和1931年启用的沸水封闭法发展而来的系列高温封闭法;另一种为常温封闭法。在常温封闭法中,自1979年吉村发现金属氟化物具有良好封闭效果以来,各国学者对此进行了系列研究,从而相继涌现出意大利“硬壁了”、“西沙特”,德国“沙乐土”,法国“法卡土”和英国 In the production of aluminum profiles, the closure of aluminum anodes is an extremely important process. At present, there are mainly two kinds of sealing methods used industrially: one is the series of high temperature sealing methods developed since the steam sealing method invented by Miyata in 1929 and the boiling water sealing method activated in 1931; the other one is the closed sealing method at room temperature . Since 1979, Yoshimura found that metal fluoride has a good sealing effect, scholars from all over the world conducted a series of researches, resulting in the emergence of “Hard Wall”, “West Saudi Arabia” and “Sara Soil” in succession in Italy. , French “Faka soil” and the United Kingdom