鋁板里邊夾雜雜質太多也會起皮，鋁件進行拋丸處理后，在鋁件上面的氧化層會被破壞了，無法處理的很干凈，一部分氧化層還留在上面。拋丸是為了使工在件得到進一步的壓實,通常每平方厘米受力為3千克力左右,如工件本身存在壓鑄質量問題,如氣孔、氣泡、冷隔等,在拋丸打實時就會產生起皮現象,這與壓鑄起皮非同一概念,要區分開來。
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.

鋁板氧化腐蝕，是保溫行業經常遇到，也是處理比較棘手的一種情況。正常情況的氧化是指鋁板在使用后，例如包在管道上以后，鋁板表面會完全和空氣接觸，形成一層氧化膜，這層氧化膜會保護鋁卷不再進一步腐蝕，所以使用后，即使再淋雨，戶外暴曬，鋁板也不會腐蝕。腐蝕性氧化是指鋁卷在未使用前，因為成卷裝包裝狀態，鋁板表面未完全和空氣接觸，還未形成保護層，這種情況下，鋁板若進水，被淋雨或受潮后，濕氣中的水份會和鋁板表面進行化學反應，造成鋁板的腐蝕，腐蝕后的鋁板會出現腐蝕痕跡，厲害的情況會發黑發烏，就像被火燒過一樣。但這種腐蝕發生后，不會再出現鋁卷的二次傷害，鋁卷本身是沒有問題的，只是外觀受損。

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.

要避免鋁板受到腐蝕，車間、倉庫房頂有漏雨、雪的地方,不應放置鋁卷；加強空氣干燥的管理,確保壓縮空氣中無水；鋁箔卷的包裝應采用密封包裝,同時每卷應放入適量的干燥劑；由低溫區運入溫度高、濕度大的地區時,不要立即開啟密封包裝；加強軋制油的管理,其含水量控制在0.04%以下；包裝箱的木軸、箱板的濕度不大于18%,包裝彩色鋁卷的溫度不大于45℃。報請鐵路分局保價機構和分局保安機構批準后執行。合同應包括以下主要內
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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