簡(jiǎn)單聊聊鍍鋅方管的集中分類，我們先從其出產(chǎn)工藝上來看，這樣是可以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?cè)S多不同的物理和化學(xué)性質(zhì)。總的來說它們?cè)趶?qiáng)度、耐性和機(jī)械功能方面都有許多的差異。熱鍍鋅方管：是在運(yùn)用鋼板或者是鋼帶彎曲成型后焊接制成的方管，并在這種方管的根底大將方管置于熱鍍鋅池中經(jīng)過一系列化學(xué)反應(yīng)后又形成的一種方管。熱鍍鋅方管的出產(chǎn)工藝較為簡(jiǎn)略，且出產(chǎn)功率是很高的，種類標(biāo)準(zhǔn)也多，這種方管所需求的設(shè)備和資金很少，適合小型鍍鋅方管廠家的出產(chǎn)?？墒菑膹?qiáng)度上來說這種鋼管的強(qiáng)度是遠(yuǎn)遠(yuǎn)低于無縫方管的。
In brief, the centralized classification of galvanized square tubes can be divided into hot galvanized square tubes and cold galvanized square tubes. It is precisely because of the different addition of these two galvanized square tubes that many different physical and chemical properties of them are created. Generally speaking, they differ in strength, endurance and mechanical function. Hot-dip galvanized square pipe: a square pipe which is welded by bending of steel plate or strip and placed in a hot-dip galvanizing bath at the root of the square pipe after a series of chemical reactions. The production process of hot-dip galvanized square tubes is relatively simple, and the output power is very high, and there are many kinds of standards. The square tubes require little equipment and capital, which is suitable for the production of small-scale galvanized square tubes manufacturers. But in terms of strength, the strength of this kind of steel pipe is far lower than that of seamless square pipe. ??而冷鍍鋅方管是在所用的方管上使用冷鍍鋅的原理來使方管具有防腐蝕的功能。與熱鍍鋅不同冷鍍鋅涂料首要經(jīng)過電化學(xué)原理來進(jìn)行防腐，因而必須保證鋅粉與鋼材的充分觸摸，發(fā)生電極電位差，所以鋼材外表處理很重要。
And the cold galvanized square pipe is to use the principle of cold galvanizing on the square pipe used to make the square pipe have the function of anti-corrosion. Different from hot-dip galvanizing, cold-dip galvanizing coatings are mainly anticorrosive by electrochemical principle. Therefore, it is necessary to ensure the full touch between zinc powder and steel, and the potential difference between electrodes occurs. Therefore, the surface treatment of steel is very important.

冷熱鍍鋅差異
Difference between_cold and hot galvanizing

鍍鋅方管有熱鍍鋅方管和電鍍鋅方管兩大類。熱鍍鋅方管有濕法、干法、鉛鋅法、氧化還原法等。不同熱鍍鋅辦法的首要差異在鋼管酸浸清洗后，用什么辦法活化管體外表進(jìn)步鍍鋅質(zhì)量。現(xiàn)出產(chǎn)中首要選用干法和氧化還原法，其特點(diǎn)見表。電鍍鋅的鋅層外表非常光滑細(xì)密、組織均勻;具有杰出的力學(xué)功能和抗腐蝕能力;鋅耗比熱鍍鋅低60%～75%。電鍍鋅在技術(shù)上有一定的復(fù)雜性，但對(duì)單面鍍層，內(nèi)外外表鍍層厚度不同的雙面鍍層，以及薄壁管鍍鋅等皆須選用此法。
_galvanized square tubes can be divided into hot galvanized square tubes and galvanized square tubes. Hot-dip galvanized square pipe has wet method, dry method, lead-zinc method, oxidation-reduction method and so on. The primary difference between different hot-dip galvanizing methods is how to activate the outside surface of the pipe to improve galvanizing quality after acid leaching cleaning. Dry method and redox method are the most important methods in production. Their characteristics are shown in the table. The zinc coating of galvanizing is very smooth, compact and uniform in structure. It has excellent mechanical function and corrosion resistance. The consumption of zinc is 60%-75% lower than that of hot galvanizing. Electroplating zinc is technically complicated, but it is necessary to select this method for single-side coating, double-sided coating with different thickness of inner and outer coating, and thin-walled tube galvanizing.