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　　1. Product Background of Zinc-Aluminum-Magnesium Alloy Steel Sheet

　　SuperDyma Zinc-Aluminium-Magnesium alloy coated steel sheet, which was developed successfully by Nippon Iron Corporation in 2001, is mainly used to replace stainless steel products and improve the performance of galvanized steel sheet. The first hot-dip galvanized Al-Mg steel plate (XLM) was successfully developed by Shandong Kerui Steel Co., Ltd. in 2013.
 

　　2. Introduction of Corey's "XLM"

　　XLM galvanized Al-Mg steel sheet is a new type of environmental protection steel sheet with high corrosion resistance and high strength by adding appropriate proportion of zinc, aluminium and magnesium into its sheet to produce composite effect. It still keeps the original appearance of steel plate under the severe corrosion environment, reduces the general steel post-processing technology, and reduces the subsequent cost of use. At the same time, due to the reduction of plating, the product saves resources and protects the environment.

　　Because XLM board saves a lot of working procedures, it saves a lot of later cost for future processing and maintenance, and it is very environmentally friendly. This product is excellent in salt spray test and red rust resistance.
 

　　3. Galvanized Aluminum Magnesium Steel Plate Production Line
 

　　4. Galvanized Aluminum Magnesium Steel Plate Products
 

　　5. Comparisons of the Corrosion Resistance of the Incision Parts with Various Coated Steel Plates
 

　　6. Comparison of Corrosion Resistance after Processing Deformation
 

　　7. End-face anticorrosion mechanism
 

　　With the passage of time, the components of zinc hydroxide [Zn (OH) 2], alkaline zinc chloride [ZnCl24Zn (OH) 2], magnesium hydroxide [Mg (OH) 2] and other compact protective coatings were formed around the edge of the cut face of galvanized Al-Mg steel plate. These ingredients will cover the end of the incision in a few months. The protective film has low conductivity and obvious inhibition effect on the corrosion of the end part.

1、鋅鋁鎂合金鋼板產(chǎn)品背景

　　SuperDyma鋅鋁鎂合金鍍層鋼板，是日本新日鐵公司2001年研發(fā)成功的一種板材，主要為了取代不銹鋼產(chǎn)品和提高鍍鋅板的性能。首塊熱鍍鋅鋁鎂鋼板（科瑞商標(biāo)：XLM）由山東科瑞鋼板有限公司于2013年開(kāi)發(fā)成功。

　　2、科瑞“XLM”簡(jiǎn)介

　　XLM鍍鋅鋁鎂鋼板，就是在它的板材中添加了合適比例的鋅、鋁、鎂，使其產(chǎn)生復(fù)合效果，具有高強(qiáng)度的抗腐蝕性，是一種高耐腐蝕新型環(huán)保型鋼板。它在嚴(yán)酷的腐蝕環(huán)境下仍然保持鋼板的原來(lái)面貌，減少了一般鋼材后期加工工藝，降低了使用后續(xù)成本。同時(shí)由于減少了電鍍，該產(chǎn)品節(jié)約了資源亦保護(hù)了環(huán)境。

　　由于XLM板節(jié)省了很多道工序，為日后的加工維護(hù)節(jié)約了很多后期成本，且非常的環(huán)保。這種產(chǎn)品在鹽霧試驗(yàn)、耐紅銹方面都十分優(yōu)異。

　　3、鍍鋅鋁鎂鋼板生產(chǎn)線

　　4、鍍鋅鋁鎂鋼板產(chǎn)品

　　5、與各種鍍層鋼板的切口部分耐蝕性比較

　　6、加工變形后的耐蝕性比較

　　7、端面防腐蝕機(jī)制

　　鍍鋅鋁鎂鋼板的切口端面四周邊部隨著時(shí)間的推移鍍層成分的溶出，形成氫氧化鋅【Zn（OH）2】、堿性氯化鋅【ZnCl24Zn（OH）2】及氫氧化鎂【Mg（OH）2】等組成的致密保護(hù)皮膜。這些成分在數(shù)月之內(nèi)就會(huì)覆蓋切口端面部分。這種保護(hù)皮膜導(dǎo)電性低，對(duì)端面部分的腐蝕有明顯的抑制效果