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濟南彩鋼板如何進行腐蝕處理?

來源:http://www.ebassfish.com/ 日期:2020-07-07 發布人:jiangucaigang
彩鋼板是當下比較受推崇的新興材料之一。隨著科技的進步、環境意識的增強,人民生活水平的提高,彩鋼板應用的范圍越來越廣泛,無論是建造簡單的房屋還是使用可移動的板房,在房屋的屋頂上使用彩色瓷磚都是很普遍的,不僅便宜,而且易于制造。 長期風吹日曬,彩鋼板很容易腐蝕,如果不及時處理,腐蝕只會越來越嚴重,從而影響彩鋼板的使用。接下來濟南彩鋼板廠家就為大家詳細介紹一下。
Color steel plate is one of the most popular emerging materials. With the progress of science and technology, the enhancement of environmental awareness, and the improvement of people's living standards, color steel plate is widely used. Whether it is to build a simple house or use a movable plank house, it is very common to use color tiles on the roof of the house, which is not only cheap, but also easy to manufacture. The color steel plate is easy to corrode if it is not treated in time, which will affect the use of color steel plate. Next, Jinan color steel plate manufacturers will give you a detailed introduction.
方法一:熱浸鋅處理。
Method one: hot dip zinc treatment.
熱浸鋅就是將除銹后的鋼構件浸入600℃左右高溫融化的鋅液中,使彩鋼板表面附著鋅層,鋅層厚度對5mm以下薄板不得小于65μm,對厚板不小于86μm,從而起到防腐蝕的目的。這種方法的優點是耐久年限長,生產工業化程度高,質量穩定。因而被大量用于受大氣腐蝕較嚴重且不易維修的室外彩鋼板中。如大量輸電塔、通訊塔等。近年來大量出現的輕鋼結構體系中的壓型鋼板等,也較多采用熱浸鋅防腐蝕。熱浸鋅的首道工序是酸洗除銹,然后是清洗。這兩道工序不處理好會給防腐蝕留下隱患。對于濟南彩鋼板結構設計者,應該避免設計出具有相貼合面的構件,以免貼合面的縫隙中酸洗不干凈或酸液洗不凈。造成鍍鋅表面流黃水的現象。熱浸鋅是在高溫下進行的。對于管形構件應該讓其兩端開敞。若兩端封閉會造成管內空氣膨脹而使封頭板爆裂,從而造成安全事故通不暢,易在管內積存。
Hot dip galvanizing is to immerse the derusted steel member into the molten zinc solution at 600 ℃ to make the surface of color steel plate adhere to zinc layer. The thickness of zinc layer shall not be less than 65 μ m for thin plate less than 5mm and 86 μ m for thick plate, so as to achieve the purpose of anti-corrosion. The advantages of this method are long service life, high degree of industrialization and stable quality. Therefore, it is widely used in outdoor color steel plate which is seriously corroded by atmosphere and is not easy to maintain. Such as a large number of transmission towers, communication towers, etc. In recent years, hot dip galvanizing is widely used in profiled steel sheet of light steel structure system. The first process of hot dip galvanizing is pickling and derusting, and then cleaning. If these two processes are not handled properly, it will leave hidden danger for corrosion prevention. For the designers of Jinan color steel plate structure, it is necessary to avoid the design of components with joint surface, so as to avoid acid pickling or acid solution cleaning in the joints. The phenomenon of yellow water flowing on the surface of galvanized steel is caused. Hot dip galvanizing is carried out at high temperature. For tubular members, both ends should be open. If both ends are closed, the air in the pipe will expand and the head plate will burst, which will cause the safety accident to be blocked and easy to accumulate in the pipe.
方法二:熱噴鋁(鋅)復合涂層。
Method two: thermal spraying aluminum (zinc) composite coating.
這是一種與熱浸鋅防腐蝕效果相當的長效防腐蝕方法。具體做法是先對濟南彩鋼板表面作噴砂除銹,使其表面露出金屬光澤并打毛。再用乙炔-氧焰將不斷送出的鋁(鋅)絲融化,并用壓縮空氣吹附到彩鋼板表面,以形成蜂窩狀的鋁(鋅)噴涂層(厚度約80μm-100μm)。然后用環氧樹脂或氯丁橡膠漆等涂料填充毛細孔,以形成復合涂層。此法無法在管狀構件的內壁施工,因而管狀構件兩端做氣密性封閉,以使內壁不會腐蝕。這種工藝的優點是對構件尺寸適應性強,構件形狀尺寸幾乎不受限制。另一個優點則是這種工藝的熱影響是局部的,受約束的,因而不會產生熱變形。與熱浸鋅相比這種方法的工業化程度較低,噴砂噴鋁(鋅)的勞動強度化影響。
This is a long-term anti-corrosion method equivalent to hot-dip galvanizing. The specific method is to remove rust on the surface of Jinan color steel plate by sand blasting to expose metal luster and roughen the surface. Then the aluminum (zinc) wire continuously sent out is melted by acetylene oxygen flame, and then blown onto the surface of color steel plate with compressed air to form a honeycomb aluminum (zinc) spraying layer (thickness of about 80 μ M-100 μ m). Then, the pores are filled with epoxy resin or neoprene paint to form a composite coating. This method can not be used in the inner wall of the tubular member, so the two ends of the tubular component are sealed to prevent the inner wall from corrosion. The advantage of this process is that it has strong adaptability to the size of components, and the shape and size of components are almost unlimited. Another advantage is that the heat effect of this process is local and constrained, so it will not produce thermal deformation. Compared with hot-dip galvanizing, the industrialization degree of this method is lower, and the labor intensity of sand blasting aluminum (zinc) spraying is affected.
方法三:涂層法。
Method 3: coating method.
涂層法防腐蝕性一般不作為長效防腐蝕方法,所以用于室內彩鋼板或相對易于維護的室外彩鋼板較多。它一次成本低,但用于戶外時維護成本較高。涂層法的施工時要先除銹,涂層依賴于除銹,所以要求高的涂層一般多用噴砂噴丸除銹,露出金屬的光澤,除去所有的銹跡和油污?,F場施工的涂層可用手工除銹。涂層的選擇要考慮周圍的環境。不同的涂層對不同的腐蝕條件有不同的耐受性。涂層一般有底漆(層)和面漆(層)之分。底漆含粉料多,基料少。成膜粗糙,與鋼材粘附力強,與面漆結合性好。面漆則基料多,成膜有光澤,能保護底漆不受大氣腐蝕,并能抗風化。不同的涂料之間有相容與否的問題,前后選用不同涂料時要注意它們的相容性。涂層的施工要有適當的溫度(5~38℃之間)和濕度(相對濕度不大于85%)。涂層的施工環境粉塵要少,構件表面不能有結露。涂裝后4小時之內不得淋雨。涂層一般做4~5遍。干漆膜總厚度室外工程為150μm,室內工程為125μm,允許偏差為25μm。在海邊或海上或是在有強烈腐蝕性的大氣中,干漆膜總厚度可加厚為200~220μm。
Coating method is not generally used as a long-term anti-corrosion method, so it is used for indoor color steel plate or outdoor color steel plate which is relatively easy to maintain. It has a low cost at one time, but it has a higher maintenance cost when used outdoors. During the construction of coating method, rust should be removed first, and the coating depends on rust removal. Therefore, the coating with high requirements is usually derusted by sandblasting and shot peening to expose the luster of metal and remove all rust and oil stains. The coating applied on site can be derusted by hand. The selection of coating should consider the surrounding environment. Different coatings have different resistance to different corrosion conditions. The coating is generally divided into primer (layer) and topcoat (layer). The primer contains more powder and less base material. The film is rough, has strong adhesion with steel and good adhesion with topcoat. The top coat has more base materials, glossy film, which can protect the primer from atmospheric corrosion and weathering. The compatibility of different coatings should be paid attention to when choosing different coatings. Proper temperature (5 ~ 38 ℃) and humidity (relative humidity no more than 85%) should be adopted for coating construction. The construction environment of coating should be less dust and there should be no condensation on the surface of components. No rain within 4 hours after painting. Coating is usually done 4 ~ 5 times. The total thickness of dry paint film is 150 μ m for outdoor engineering and 125 μ m for indoor engineering, and the allowable deviation is 25 μ M. The total thickness of dry paint film can be increased to 200 ~ 220 μ m on the sea or in the strong corrosive atmosphere.
以上就是今天為大家分享的關于濟南彩鋼板進行腐蝕處理的步驟的相關內容,希望對大家能有所幫助,想要了解更多內容可以電話聯系我們或者關注我們的網站。
The above is today's sharing of Jinan color steel corrosion treatment steps related content, hope to help you, want to learn more can contact us by phone or pay attention to our website.
此文關鍵詞: 濟南彩鋼板廠  

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