對于鋼結(jié)構(gòu)活動板房的防腐措施有以下幾點:
The anti-corrosion measures for steel structure movable plank houses are as follows:
1鋼材:活動板房一般都會選擇一些耐腐蝕性的鋼材,這種耐腐蝕性的鋼材一般稱為耐候鋼;耐候鋼含有磷、銅、鎳、鉻、鈦等金屬。這幾種材料會在鋼材表面形成很高防護作用,使鋼材的耐腐蝕性提高;活動板房直接面對的就是陽光、雨露、霜雪等等大自然的氣候,耐候鋼的低溫沖擊韌性也比一般的結(jié)構(gòu)用鋼好。
1. Steel: movable plank houses generally choose some corrosion-resistant steel, which is generally called weather resistant steel; Weathering steel contains phosphorus, copper, nickel, chromium, titanium and other metals. These materials will form a high protective effect on the steel surface and improve the corrosion resistance of the steel; The movable plank house directly faces the natural climate such as sunshine, rain and dew, frost and snow, and the low-temperature impact toughness of weather resistant steel is also better than that of general structural steel.
2 高溫鋅:熱浸鋅一種耐高溫產(chǎn)品;它的制做過程中就已經(jīng)達到600度高溫的浸泡。鋼構(gòu)件的表面就有這種鋅層,而這種鋅層的厚度已達到5微米,而這種附在鋼構(gòu)件表面的鋅層也詳細(xì)的規(guī)定,薄板不得小于65μm,厚板不得小于86μm。從而起得耐高溫防腐蝕的目的。這種制做的工藝方法優(yōu)點就是在高溫下不易變型,年限久,質(zhì)量有保障。所以這種產(chǎn)品被廣泛應(yīng)用到室外大型的鋼結(jié)構(gòu)中,如:電塔,通訊塔;大型戶外廣告牌等等。熱浸鋅制做是除銹,銹蝕必須用酸洗。然后就是清潔;對于鋼結(jié)構(gòu)的設(shè)計,應(yīng)該避免設(shè)計出具有相貼合面的構(gòu)件,以免貼合面的縫隙中酸洗不徹底或酸液洗不凈;造成鍍鋅表面流黃水的現(xiàn)象。熱浸鋅是在高溫下進行的。
2 high temperature zinc: hot dip galvanizing is a high temperature resistant product; It has been soaked at a high temperature of 600 degrees in the manufacturing process. There is such a zinc layer on the surface of steel members, and the thickness of this zinc layer has reached 5 microns, and the zinc layer attached to the surface of steel members is also specified in detail, and the thin plate shall not be less than 65 μ m. The thickness of plate shall not be less than 86 μ m。 So as to achieve the purpose of high temperature resistance and corrosion prevention. The advantages of this manufacturing method are that it is not easy to change under high temperature, long service life and guaranteed quality. Therefore, this product is widely used in outdoor large steel structures, such as electric tower and communication tower; Large outdoor billboards and so on. The first step in hot-dip galvanizing is to remove rust, which must be pickled. Then cleaning; For the design of steel structure, it should be avoided to design components with mating surface, so as to avoid incomplete pickling or acid washing in the gap of mating surface; Cause yellow water to flow on the galvanized surface. Hot dip galvanizing is carried out at high temperature.
3 涂層法:涂層防腐蝕性一般不如高溫鋅,所以用于室內(nèi)鋼結(jié)構(gòu)或相對于比較容易維護的室外鋼結(jié)構(gòu)多,這種涂層的特點就是成本低,用于室內(nèi)鋼結(jié)構(gòu)較多。這種涂層就是防銹蝕,不需要耐高溫,也不需要直接面對大自然的氣候。涂層法的施工步就是除銹,涂層相對于高溫鋅除銹要求更高一些,所以要求高的涂層一般多用噴砂噴丸除銹,除去所有的銹跡和油污。現(xiàn)場施工的涂層可用手工除銹。涂層對環(huán)境要求更高一些。涂層的施工環(huán)境粉塵要更少,構(gòu)件表面不能有灰塵,涂裝后四個小時之內(nèi)不得淋雨。不同的涂層對不同的腐蝕條件有不同的耐受性。
3 coating method: the corrosion resistance of the coating is generally not as good as that of high-temperature zinc, so it is used for indoor steel structures or more than outdoor steel structures that are easier to maintain. The characteristic of this coating is low cost and more for indoor steel structures. This kind of coating is anti rust and does not need to be resistant to high temperature or face the natural climate directly. The first step in the construction of the coating method is rust removal. The requirements for rust removal of the coating are higher than those of high-temperature zinc. Therefore, the high-temperature coating is generally derusted by sand blasting to remove all rust and oil stain. The coating applied on site can be derusted manually. The coating has higher requirements for the environment. The construction environment of the coating shall have less dust, the component surface shall not have dust, and shall not be exposed to rain within four hours after coating. Different coatings have different resistance to different corrosion conditions.
4 熱噴鋁(鋅)復(fù)合涂層:這種涂層的優(yōu)點就是對構(gòu)件尺寸適應(yīng)性強,構(gòu)件形狀以及尺寸幾乎都能做出來。還有一個好處就是這種工藝的高溫度是局部的,所以不會發(fā)生因高溫而變型。
4 thermal sprayed aluminum (zinc) composite coating: the advantage of this coating is that it has strong adaptability to the size of components, and almost all the shapes and sizes of components can be made. Another advantage is that the high temperature of this process is local, so it will not change due to high temperature.
綜合以上所述,
濟南活動板房防腐蝕性是越來越強,而且現(xiàn)代的工藝加工也越來越,活動板房的主要架構(gòu)就是鋼材;活動板房的質(zhì)量就取決于鋼材的質(zhì)量與涂層。更多精彩內(nèi)容敬請關(guān)注我們網(wǎng)站:
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Based on the above, the corrosion resistance of Jinan movable plank house is becoming stronger and stronger, and the modern processing technology is becoming more and more perfect. The main structure of movable plank house is steel; The quality of movable plank house depends on the quality and coating of steel. For more wonderful content, please follow our website: http://szgdbearing.com The next issue will be shared with you on time!