Modelele reprezentative ale 3 plăci din aluminiu de serie sunt 3003, 3004, și 3A21, care pot fi numite și plăci de aluminiu antirugină. 3 Foile de aluminiu din serie sunt utilizate pe scară largă în izolarea conductelor și în industria rezervoarelor de combustibil pentru automobile. 3 placa de aluminiu de serie is a commonly used type of alloy aluminum plate. It is an aluminum alloy with manganese as the main alloy element, which cannot be strengthened by heat treatment; it has good plasticity, performante bune de sudare, and corrosion resistance is slightly stronger than that of series 1. It is a medium-strength aluminum alloy.
3003 și 3004 series are both aluminum-manganese alloys, which are the most widely used rust-proof aluminum. Now most of them are in the form of sheets and coils. There are many 3003 și 3004 aluminum coils for ordinary pipeline insulation and anti-corrosion, and the thickness Most of them are 0.4-1.2mm, and the width is 1000-1220mm. Because they are delivered in rolls, they are easily oxidized by water during transportation and storage. Prin urmare, the packaging and storage requirements of 3003 aluminum coils are relatively strict.
The following describes the anti-oxidation measures of the 3003 bobina de aluminiu:
(1) Strengthen the management of air drying to ensure that there is no water in the compressed air.
(2) Strengthen the management of rolling oil, and control its water content below 0.04%.
(3) The packaging of aluminum foil rolls should be sealed, and an appropriate amount of desiccant should be placed in each roll.
(4) The humidity of the wooden shaft and box board of the packing box is not more than 18%, and the temperature of the packaging aluminum coil is not more than 45 ℃.
(5) When transporting from the low temperature area to the area with high temperature and high humidity, do not open the sealed package immediately.
(6) Aluminum coils should not be placed in places where there is rain or snow on the roof of workshops and warehouses.
The 3 series aluminum plate has good formability, sudabilitate și rezistență la coroziune, and is mainly used for work with slightly higher strength requirements than the 1 serie, such as pressure tanks, rezervoare de stocare, thermal insulation materials, Componente mecanice, automobile and aircraft fuel tanks, etc. It is commonly used in humid environments such as air conditioners, frigidere, și fundul mașinilor. The price is higher than the 1 serie. It is a more commonly used alloy series.