铝板里边夹杂杂质太多也会起皮，铝件进行抛丸处理后，在铝件上面的氧化层会被破坏了，无法处理的很干净，一部分氧化层还留在上面。抛丸是为了使工在件得到进一步的压实,通常每平方厘米受力为3千克力左右,如工件本身存在压铸质量问题,如气孔、气泡、冷隔等,在抛丸打实时就会产生起皮现象,这与压铸起皮非同一概念,要区分开来。
There are too many impurities in the aluminum plate, and the aluminum parts can be shot up, and the oxide layer on the aluminum parts will be destroyed, it can not be handled very clean, a part of the oxide layer remains on it. Shot is to make the work in the part to be further compacted, usually 3 kilogram force per square centimeter, such as the existence of die casting quality problems, such as air holes, bubbles, cold septum and so on, in the shot hit real time will produce the skin phenomenon, which is not the same as the die-casting peeling, to distinguish.

铝板氧化腐蚀，是保温行业经常遇到，也是处理比较棘手的一种情况。正常情况的氧化是指铝板在使用后，例如包在管道上以后，铝板表面会完全和空气接触，形成一层氧化膜，这层氧化膜会保护铝卷不再进一步腐蚀，所以使用后，即使再淋雨，户外暴晒，铝板也不会腐蚀。腐蚀性氧化是指铝卷在未使用前，因为成卷装包装状态，铝板表面未完全和空气接触，还未形成保护层，这种情况下，铝板若进水，被淋雨或受潮后，湿气中的水份会和铝板表面进行化学反应，造成铝板的腐蚀，腐蚀后的铝板会出现腐蚀痕迹，厉害的情况会发黑发乌，就像被火烧过一样。但这种腐蚀发生后，不会再出现铝卷的二次伤害，铝卷本身是没有问题的，只是外观受损。

Oxidation corrosion of aluminum plates is often encountered in the thermal insulation industry, and it is also a difficult situation to deal with. The oxidation of normal conditions means that after the aluminum plate is used, for example, after the pipe is wrapped, the surface of the aluminum plate will completely contact with the air to form a layer of oxide film, which will protect the aluminum coil from further corrosion, so the aluminum plate will not corrode even after the use of rain and outdoor exposure. Corrosive oxidation means that the aluminum coil is not used before it is used, because the surface of the aluminum plate is not fully exposed to air and has not formed a protective layer. In this case, the water in the wet gas will react with the surface of the aluminum plate if the aluminum plate is flooded, and the moisture in the wet gas will react with the surface of the aluminum plate, causing the corrosion of the aluminum plate and the corroded aluminum plate. There will be signs of corrosion, bad situation will be black Ukraine, like burned. However, after the corrosion occurs, there will be no two damage to the aluminum coil. The aluminum coil itself is not a problem, but the appearance is damaged.

要避免铝板受到腐蚀，车间、仓库房顶有漏雨、雪的地方,不应放置铝卷；加强空气干燥的管理,确保压缩空气中无水；铝箔卷的包装应采用密封包装,同时每卷应放入适量的干燥剂；由低温区运入温度高、湿度大的地区时,不要立即开启密封包装；加强轧制油的管理,其含水量控制在0.04%以下；包装箱的木轴、箱板的湿度不大于18%,包装彩色铝卷的温度不大于45℃。报请铁路分局保价机构和分局保安机构批准后执行。合同应包括以下主要内
To avoid the corrosion of the aluminum plate, where the roof of the workshop and the warehouse are covered with rain and snow, no aluminum coil should be placed; the air drying management should be strengthened to ensure the water free in the compressed air; the packing of the aluminum foil should be sealed and packed in a suitable amount of desiccant at the same time; when the temperature area is high and the humidity is large in the area of low temperature, do not stand up. That is to open the sealed package; to strengthen the management of rolling oil, its water content is under 0.04%. The humidity of the wooden shaft and the box plate of the packing box is not more than 18%, and the temperature of the packed color aluminum roll is not more than 45. It shall be submitted to the Railway Sub bureaus and the security organs of the sub bureaus for approval. The contract shall include the following main internal
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