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自戴式潜水呼吸用钢质和铝质气瓶,在所有的环境条件下,铝瓶的腐蚀都比钢瓶轻得多.如装有海水并增到满压的钢瓶,在一百天试验以后已经处于爆炸的危险.在同样条件下铝瓶的腐蚀虽然轻得多,但铝瓶螺纹严重咬死,甚至有不损坏气瓶就不可能取下阀门的情况.对各种阀门结构的试验表明,这种咬死是腐蚀产生的.在气瓶阀门上采用塑料或其他非黄铜的延长管,并减少气瓶里水中的铜含量,可将这种咬死问题减轻甚至消除.
For self-worn steel submersible breathable and aluminum gas cylinders, aluminum bottles are much less corrosive than cylinders under all environmental conditions. After a hundred days of testing, cylinders filled with seawater and filled to full pressure Has been in danger of explosion. Under the same conditions aluminum bottle corrosion is much lighter, but the aluminum bottle thread severely killed, and even without damage to the cylinder will not be able to remove the valve.A variety of valve structure tests show This bite is a corrosive effect, which can be reduced or eliminated by using plastic or other non-brass extension tubes on the cylinder valve and reducing the copper content of the water in the cylinder.