輕鋼別墅主體龍骨用鍍鋅板好還是鍍鋁鋅板好？

Light steel villa main body keel with galvanized plate good or aluminum galvanized plate good?

無論輕鋼別墅主體龍骨用鍍鋅板還是鍍鋁鋅板，都是看客戶的需求，可謂各有千秋。

Whether the main body of the light steel villa keel with galvanized plate or aluminum galvanized plate, are to see the needs of customers, it can be said that each has its own merits.

近年來隨著輕鋼大大力發(fā)展，輕鋼結(jié)構(gòu)對(duì)于材質(zhì)的需求越來越大。輕鋼別墅龍骨原材料（主指鋼龍骨）主要是高強(qiáng)鍍鋅板和鍍鋁鋅板，作為建筑材料，需要高強(qiáng)的鋼材材質(zhì)。

In recent years, with the vigorous development of light steel, light steel structure is in increasing demand for material.Light steel villa keel raw material (mainly refers to the steel keel) is mainly high strength galvanized plate and aluminum plating galvanized plate, as a building material, the need for high strength of steel material.

鍍鋁鋅鋼板是鋁鋅合金結(jié)構(gòu)組成，由55%鋁、42.5%鋅與1.5%硅在600℃高溫下凝固而組成，其整個(gè)結(jié)構(gòu)由鋁、鐵、硅、鋅，形成致密的四元結(jié)晶體的一種合金。“鍍鋁鋅鋼”的耐腐蝕性主要是因?yàn)殇X，鋁的保護(hù)功能。當(dāng)鋅受到磨損時(shí)，鋁便形成一層致密的氧化鋁，阻止耐腐蝕性物質(zhì)進(jìn)一步的腐蝕內(nèi)部。其耐大氣腐蝕特性比常規(guī)熱鍍鋅高許多，并具有良好的涂敷性，可使合金層和涂層間的結(jié)合長期保持穩(wěn)定。鍍鋁鋅鋼的熱反射率很高。鋁鋅合金成分為鋁55%、鋅43.5%及硅1.5%高度反射率，使其成為抗熱的屏障，是鍍鋅鋼的兩倍 ，人們經(jīng)常用它來作隔熱的材料。且韌性好，可有較大變形，能很好地承受動(dòng)力荷載，其次鍍鋁鋅均勻質(zhì)性和各向同性好，屬理想彈性體，最符合一般工程力學(xué)的基本假定。

Aluminized galvanized steel plate is an aluminum-zinc alloy structure composed of 55% aluminum, 42.5% zinc and 1.5% silicon at high temperature of 600℃. The whole structure consists of aluminum, iron, silicon, zinc, forming an alloy of a dense four-dimensional crystal.The corrosion resistance of "aluminum galvanized steel" is mainly due to the protection function of aluminum and aluminum.When zinc is worn, aluminum forms a dense layer of alumina that prevents further corrosion of corrosion-resistant substances inside.Its atmospheric corrosion resistance is much higher than the conventional thermal galvanization, and has good coating properties, which can keep the combination between the alloy layer and the coating stable for a long time.The thermal reflectivity of aluminum-galvanized steel is very high.The aluminum-zinc alloy composition is 55% aluminum, 43.5% zinc and 1.5% silicon high reflectivity, making it a heat resistance barrier, twice that of galvanized steel, and it is often used as a heat insulation material.Moreover, good toughness, can have a large deformation, can well bear the power load, followed by aluminum galvanized uniformity and isotropic good, is the ideal elastomer, the most in line with the basic assumption of general engineering mechanics.

鍍鋅鋼板主要是由金屬、合金或者其它材料的表面鍍一層鋅，以起美觀、防銹等作用的表面處理技術(shù)。主要采用的方法是熱鍍鋅，僅僅只有一層鋅的金屬元素，鋅層可以對(duì)鋼鐵基件起到一個(gè)保護(hù)作用，免于腐蝕。 鍍鋅板是指表面鍍有一層鋅的鋼板，在我國俗稱為“白鐵皮”，在建筑上的應(yīng)用最為廣泛，在沒有作為彩涂基板以前它已經(jīng)廣泛應(yīng)用于建筑行業(yè)，它的鍍層表面狀態(tài)是鑄造態(tài)，表面有均勻光亮的鋅花（在汽車和家電用鍍鋅多崇尚無鋅花粗糙表面），有各種不同的表面狀態(tài)。覆蓋隔絕：鋅與氧反應(yīng)，形成致密的氧化膜，隔絕空氣和水分，防止氧化。陰極保護(hù)：鋅層某處被劃傷，周圍的鋅會(huì)先融化變?yōu)殍F的替身，保護(hù)裸露鋼材不受腐蝕。

Galvanized steel plate is mainly a surface of metal, alloy or other materials plated with a layer of zinc, to play the role of beautiful, rust prevention and other surface treatment technology.The main method used is hot galvanization, only one layer of zinc metal element, zinc layer can play a protective role on the steel substrate, free from corrosion.Galvanized plate refers to the surface coated with a layer of zinc steel plate, commonly known as "tin" in China, the most widely used in buildings, before no color coating substrate it has been widely used in the construction industry, its coating surface state is casting, the surface has uniform bright zinc flowers (in cars and home appliances with galvanized advocating zinc flower rough surface), there are a variety of different surface states.Cover and isolation: zinc reacts with oxygen to form a dense oxide film, isolate air and water, and prevent oxidation.cathodic protection: zinc layer is cut somewhere, the surrounding zinc will melt into an iron double to protect the exposed steel from corrosion.

現(xiàn)在大多數(shù)公司或者工廠都主要用鍍鋁鋅鋼板作輕鋼別墅主體龍骨。就高強(qiáng)來講，都是G550高強(qiáng)材質(zhì)，在材料系數(shù)上面兩方無差，但是就價(jià)格來講，鍍鋅板價(jià)格比鍍鋁鋅板價(jià)格會(huì)低一些，但是這是看市場行情的，因?yàn)楝F(xiàn)在大多數(shù)都在用鍍鋁鋅鋼板，鋼廠鍍鋅鋼卷產(chǎn)量提高，鍍鋅產(chǎn)量降低，市場鍍鋅存貨量低。

Now most companies or factories mainly use aluminum-plated galvanized steel plate as the main keel of light steel villas.In terms of high strength, are G550 high strength material, no difference above the material coefficient, but in terms of price, galvanized plate price will be lower than aluminum galvanized plate, but this is the market, because most are now using aluminum galvanized steel plate, galvanized steel volume in steel production, galvanized production is reduced, the market galvanized inventory is low.