鍍鋁工藝是在類似于熱浸鍍鋅厚鋼板的連續(xù)生產(chǎn)線上進(jìn)行生產(chǎn)的，將冷軋薄鋼板熱浸于鋁（鍍鋁）或硅質(zhì)量百分?jǐn)?shù)為5%～11%的鋁合金（鍍鋁硅）的金屬熔化液體里，獲得所需的金屬鍍層。

The aluminization process is produced on a continuous production line similar to hot dip galvanized thick steel sheet, where the cold rolled thin steel sheet is hot immersed in aluminum (aluminum alloy or silicon) of 5%~11% to obtain the desired metal coating.

鍍鋁的薄鋼板可應(yīng)用于需要耐熱、能熱反射或耐腐蝕的，既美觀又經(jīng)濟(jì)的薄鋼板的情況下。鋁鍍層是通過(guò)浸在非合金的熔融鋁里而生成的一種較厚（一般為30～50μrn）的鍍層。

Aluminized sheet steel can be used to require heat resistance, heat reflection or corrosion resistance, both beautiful and economical sheet steel cases.Aluminum plating is a thick (generally 30 to 50 rn) coating produced by immersion in non-alloy molten aluminum.

?耐腐蝕性

鋁作為薄鋼板保護(hù)層的價(jià)值主要在于其固有的耐腐蝕性,在大部分的環(huán)境中鋁的長(zhǎng)期腐蝕率只有鋅的15%～25%。一般來(lái)說(shuō)，鋁鍍層對(duì)于鋼基板保護(hù)價(jià)值取決于其厚度。只要鍍層能維持不受損傷，就能提供長(zhǎng)期的保護(hù)。鋁鍍層在大部分的環(huán)境中特別當(dāng)裸露在大氣中無(wú)須提供犧牲陽(yáng)極的保護(hù)。

? corrosion resistance

The value of aluminum as a protective layer of thin steel plate mainly lies in its inherent corrosion resistance. In most of the environment, the long-term corrosion rate of aluminum is only 15%~25% of that of zinc.In general, the protection value of aluminum coating for steel substrate depends on its thickness.Long-term protection provides as long as the plating is protected from damage.Aluminum plating in most of the environment especially when exposed in the atmosphere without providing protection from the sacrificial anode.

?耐熱性

鍍鋁的薄鋼板有優(yōu)異的抗高溫氧化性。在表面溫度不超過(guò)約510℃時(shí)，鋁鍍層能保護(hù)鋼不受氧化，且其自身也不會(huì)發(fā)生色變。在510～675℃的溫度下，鍍層仍能為鋼提供保護(hù)，但隨著鋁-鐵-硅合金的形成會(huì)造成表面發(fā)暗。該合金層極為耐熱，但由于它與鋼有著不同的膨脹系數(shù)，故當(dāng)超過(guò)675℃時(shí)，鍍層就會(huì)變脆并發(fā)生剝落。

? heat resistance

Aluminium-plated sheet sheet has excellent high temperature oxidation resistance.When the surface temperature does not exceed about 510℃, the aluminum coating protects the steel from oxidation and does not change in color itself.The plating still protects the steel at 510 to 675℃, but the surface darkas the aluminum-iron-silicon alloy is formed.The alloy layer is extremely heat resistant, but because it has a different expansion coefficient from steel, the coating becomes brittle and flaoff over 675℃.

?焊接性

鍍鋁薄鋼板能用電阻焊（點(diǎn)焊或縫焊）進(jìn)行連接，也可進(jìn)行金屬電弧焊、火花對(duì)接焊或乙炔氧焊。在連接前，建議用鋼絲刷將油、脂、漆和臟物徹底清除。金屬電弧焊和乙炔氧焊還要求使用專門的熔劑。在電阻焊過(guò)程中電極上有可能粘上鋁，因此電焊極頭或焊輪需要更頻繁地修磨。同時(shí)，其焊接電流密度也應(yīng)比焊接無(wú)鍍層鋼板更大一些。

? weldability

Alumized sheet steel can be connected with resistance welding (spot welding or seam welding), or metal arc welding, spark butt welding or acetylene oxygen welding.Before joining, it is recommended to thoroughly remove oil, fat, paint and dirt with a wire brush.Special fluxes are also required for metal arc welding and acetylene oxygen welding.It is possible to stick aluminum to the electrode during resistance welding, so the electrode head or wheel will need to be worn more frequently.At the same time, the welding current density should also be larger than the welded uncoated steel plate.

鍍鋁鋼板的表面，不僅加工美麗，且有優(yōu)秀的反射性能，在500℃以下的溫度下，具有80%左右的光反射率；紅外線下的反射率竟達(dá)到95%。因此鍍鋁板可制成高效的隔熱屏障或者在高溫應(yīng)用中的熱反射器，通過(guò)有效的熱反射使?fàn)t內(nèi)溫度迅速升高。 

The surface of aluminum steel plate is not only beautiful, but also has excellent reflective performance. At the temperature below 500℃, the light reflectivity is about 80%; the infrared reflectivity reaches 95%.Therefore, the aluminum plating plate can be made into an efficient heat insulation barrier or a heat reflector in high temperature applications, and the temperature in the furnace increases rapidly through the effective heat reflection.