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    鍍鋅方管之熱度與冷鍍的區別在哪里?

    發布時間:2019-04-24人氣:419
      大連鍍鋅方管市場價格將持穩運行為主出貨較差大連鍍鋅方管市場價格暫穩。近期上游原材料價格一直持穩,管廠鍍鋅方管價格也普遍報穩。目前大連鍍鋅方管市場價格暫穩,市場需求疲弱,出貨較差。冬季受天氣影響,下游幾乎無采購意愿,成交困難。整體來看,預計…

    無錫鍍鋅方管熱度與冷鍍的區別:鍍鋅方管是一種具以熱軋或冷軋鍍鋅帶鋼或鍍鋅卷板為坯料經冷彎曲加工成型后再經高頻焊接制成的方形截面形狀尺寸的空心方形的截面型鋼鋼管;或將事先做好的冷彎空心型鋼管再經熱浸鍍鋅加工而成的鍍鋅方矩管。

    The difference between hot and cold galvanized square pipes in Wuxi is that the galvanized square pipes are hollow square section steel pipes with square section shape and dimension made by cold bending and forming with hot-rolled or cold-rolled galvanized strip or galvanized coil sheet and high frequency welding, or galvanized square pipes made by hot dipping and galvanizing. 鍍鋅方管的分類

    Classification of galvanized square tubes

    無錫鍍鋅方管從生產工藝上是分為熱鍍鋅方管和冷鍍鋅方管的。正是由于這兩種鍍鋅方管的加不相同也就造就了它們很多不同的物理和化學性質??偟膩碚f它們在強度、韌性和機械性能方面都有很多的區別。

    Wuxi galvanized square pipe is divided into hot galvanized square pipe and cold galvanized square pipe in terms of production technology. It is precisely because of the different addition of these two galvanized square tubes that they have many different physical and chemical properties. Generally speaking, they differ in strength, toughness and mechanical properties.

    熱鍍鋅方管

    Hot-dip galvanized square tube

    熱鍍鋅方管:是在使用鋼板或者是鋼帶卷曲成型后焊接制成的方管,并在這種方管的基礎上將方管置于熱鍍鋅池中經過一系列化學反響有形成的一種方管。熱鍍鋅方管的生產工藝較為簡答,但是生產效率是很高的,品種規格也多,但這種方管所需要的設備和資金很少,和適合小型鍍鋅方管廠家的生產。但是從強度上來說這種鋼管的強度是遠遠低于無縫方管的。

    Hot-dip galvanized square pipe: a square pipe made by welding steel plate or steel strip after coiling and forming. On the basis of this square pipe, square pipe is placed in hot-dip galvanized pool and formed through a series of chemical reactions. Hot-dip galvanized square pipe production process is relatively simple, but the production efficiency is very high, variety specifications are also many, but this kind of square pipe requires little equipment and funds, and suitable for small-scale galvanized square pipe manufacturers. But in terms of strength, the strength of this kind of steel pipe is far lower than that of seamless square pipe.

    冷鍍鋅方管

    Cold Galvanized Square Pipe

    而冷鍍鋅方管是在所用的方管上利用冷鍍鋅的原理來使方管具有防腐蝕的性能。與熱鍍鋅不同冷鍍鋅涂料主要通過電化學原理來進行防腐,因此必須保證鋅粉與鋼材的充分接觸,產生電極電位差,所以鋼材表面處理很重要。

    The cold galvanized square pipe is used to make the square pipe have anti-corrosion performance by using the principle of cold galvanizing. Different from hot-dip galvanizing, cold-dip galvanizing coatings are mainly anti-corrosion based on electrochemical principle. Therefore, it is necessary to ensure full contact between zinc powder and steel to produce electrode potential difference, so surface treatment of steel is very important.

    冷、熱鍍鋅方管的區別

    Differentiation between cold galvanized square tubes and hot galvanized square tubes

    鍍鋅方管有熱鍍鋅方管和冷鍍鋅方管兩大類。熱鍍鋅方管有濕法、干法、鉛鋅法、氧化還原法等。不同熱鍍鋅方法的主要區別在鋼管酸浸清洗后,用什么方法活化管體表面提高鍍鋅質量?,F生產中主要采用干法和氧化還原法,其特點見表。

    Galvanized square tubes can be divided into hot galvanized square tubes and cold galvanized square tubes. Hot-dip galvanized square pipe has wet method, dry method, lead-zinc method, oxidation-reduction method and so on. The main difference between different hot-dip galvanizing methods is how to activate the surface of pipe body to improve galvanizing quality after acid leaching cleaning. Dry process and redox process are mainly used in production, and their characteristics are shown in table.

    冷鍍鋅的鋅層表面十分光滑致密、組織均勻;具有良好的力學性能和抗腐蝕能力;鋅耗比熱鍍鋅低60%~75%。電鍍鋅在技術上有一定的復雜性,但對單面鍍層,內外表面鍍層厚度不同的雙面鍍層,以及薄壁管鍍鋅等皆須采用此法。

    The surface of cold galvanized zinc coating is smooth, compact and uniform in structure. It has good mechanical properties and corrosion resistance. The consumption of zinc is 60%-75% lower than that of hot galvanized zinc. Zinc plating is technically complicated, but it is necessary to use this method for single-sided coating, double-sided coating with different thickness of inner and outer surface coating, and thin-walled tube galvanizing.

      預計明日國內方管市場價格偏弱運行廠家不愿降價…方管市場價格下跌。受期螺的大幅度跳水,節前的部分積極性完全被打破,方管廠家知道價格大幅下調,市場觀望心態較重,而且方管廠家也不愿降價,低價資源出貨仍不好,挺價意愿較強,北方重點城市唐山,工角槽H方管廠家…
    辛苦整理!轉載請注明來自 http://www.episcobooks.com/news/xw2/60.html

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