在日常生活中我们很少能了解到镀铝薄钢板的只是，今天小编就为您详细讲解下镀铝薄钢板的相关知识。

In daily life, we rarely know that the aluminum sheet sheet steel plate is only, today Xiaobian will explain the relevant knowledge of the aluminum sheet steel plate in detail for you.

镀铝薄钢板的镀铝工艺是在类似于热浸镀锌厚钢板的连续生产线上进行生产的，将冷轧薄钢板热浸于铝（镀铝）或硅质量百分数为5%～11%的铝合金（镀铝硅）的金属熔化液体里，获得所需的金属镀层。镀铝的薄钢板应用于需要耐热、能热反射或耐腐蚀的，既美观又经济的薄钢板的情况下。通过浸在非合金的熔融铝里而生成的一种较厚（一般为30～50μrn）的镀层。镀铝薄钢板产品通常应用于户外的结构用途，如屋顶、涵洞和粮仓，只需不高的成形要求，但有非常优秀的耐腐蚀性。

The aluminum plating process of aluminum-plated thin steel sheet is produced on a continuous production line similar to hot-dip galvanized thick steel sheet, hot soaking cold-rolled thin steel sheet in a metal molten liquid of aluminum (aluminum-plated) or silicon quality percentage of 5%~11% to obtain the desired metal coating.Aluminized steel sheet shall be used for heat resistant, heat reflection or corrosion resistant, beautiful and economical.A thick plating layer (generally 30 to 50 rn) produced by immersion in molten aluminum of a non-alloy.Aluminized sheet products are usually used for outdoor structural purposes such as roofs, culverts and granaries with low forming requirements but with very excellent corrosion resistance.

镀铝钢板的表面，不仅加工美丽，且有优秀的反射性能，在500℃以下的温度下，具有80%左右的光反射率；红外线下的反射率竟达到95%。因此镀铝板可制成高效的隔热屏障或者在高温应用中的热反射器，通过有效的热反射使炉内温度迅速升高。

The surface of aluminum plated steel plate is not only beautiful, but also has excellent reflection performance. At the temperature below 500℃, the optical reflectance is about 80%; the reflectivity under infrared reaches 95%.Therefore, the aluminum-plated plate can be made into a high-efficiency heat insulation barrier or a heat reflector in the high-temperature application, rapidly increasing the temperature in the furnace through the effective heat reflection.

铝作为薄钢板保护层的价值主要在于其固有的耐腐蚀性,在大部分的环境中铝的长期腐蚀率只有锌的15%～25%。一般来说，铝镀层对于钢基板保护价值取决于其厚度。只要镀层能维持不受损伤，就能提供长期的保护。铝镀层在大部分的环境中特别当裸露在大气中无须提供牺牲阳极的保护。

The value of aluminum as a protective layer of thin steel sheet mainly lies in its inherent corrosion resistance. The long-term corrosion rate of aluminum is only 15%~25% of zinc in most environments.Generally speaking, the protection value of the aluminum plating for the steel substrate depends on its thickness.Long-term protection is provided as long as the plating is maintained from damage.Aluminum plating in most of the environment especially when exposed to the atmosphere does not provide protection from the sacrificial anode.

镀铝的薄钢板有优异的抗高温氧化性。在表面温度不超过约510℃时，铝镀层能保护钢不受氧化，且其自身也不会发生色变。在510～675℃的温度下，镀层仍能为钢提供保护，但随着铝-铁-硅合金的形成会造成表面发暗。该合金层极为耐热，但由于它与钢有着不同的膨胀系数，故当超过675℃时，镀层就会变脆并发生剥落。

Aluminized thin steel 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 provides protection for the steel at 510 to 675℃, but causes surface shading with the formation of an aluminum-iron-silicon alloy.The alloy layer is extremely heat resistant, but because it has a different expansion coefficient from steel, the coating becomes brittle and peeling when over 675℃.