黑白鐵皮加工有竅門！

發(fā)布人：http://m.hwzxw.net   發(fā)布時間：2018-02-23 13:23:37

黑白鐵，望文生義，是黑鐵和白鐵的總稱。而黑白鐵加工則是民間小作坊對加工一般鐵件和鍍鋅鐵板東西的叫法。他們將一般的鐵件稱之為"黑鐵"，將鍍鋅鐵板(俗稱的雪花鐵)一般稱之為"白鐵"。

Black and white iron, iron and tin is a general term. And black-and-white iron processing is a small folk workshop for the processing of General Iron and galvanized iron plate things. They will iron general called "iron", the galvanized iron (commonly known as the snow iron) commonly known as "tin".

黑鐵又稱為不銹鋼，是黑白鐵的一種。不銹鋼的原色是黑色的，我們看見銀色的不銹鋼是通過磨光出來后的加工商品。對不銹鋼原材我們則稱黑鐵。不銹鋼耐蝕功用隨含碳量添加而不斷降低，因此，大多數(shù)的不銹鋼含碳量均是較低的，也大不逾越1.2%，而有些鋼中Wc(含碳量)甚會低于0.03%(如00Cr12)。不銹鋼中首要的合金元素是Cr(鉻)，只有當Cr含量抵達一定值的時分，鋼才有耐蝕的功用。因此，不銹鋼一般的Cr(鉻)含量少是為10.5%。

Iron is also called stainless steel, is a black and white iron. The original color of stainless steel is black, and we see silver stainless steel being processed by polishing. We call on the stainless steel raw material of iron. The corrosion resistance function of stainless steel decreases with the increase of carbon content. Therefore, most stainless steels contain lower carbon content and most of them do not exceed 1.2%. In some steels, Wc content is even less than 0.03%, such as 00Cr12. The primary alloy element in stainless steel is Cr (chromium). Only when the content of Cr reaches a certain value, the steel has the function of corrosion resistance. As a result, the general Cr (chromium) content of stainless steel is at least 10.5%.

白鐵則是鍍鋅鐵俗稱。將潔凈鐵片浸在熔化液體的鋅里而制得的。鋅雖然是對比的生動，但在富含CO2濕潤的空氣里能生成一層堿式的碳酸鋅：4Zn+2O2+3H2O+CO2→ZnCO3.3Zn(OH)2 這層堿式碳酸鋅的薄膜較緊密，也可以作保護膜，防止內(nèi)部的鋅不再被繼續(xù)的氧化。

It is commonly known as the galvanized iron tin. The clean iron sheet is dipped in the zinc of the molten liquid. Although zinc is the contrast of vivid, but in the CO2 rich moist air to form a layer of basic zinc carbonate: 4Zn+2O2+3H2O+CO2, ZnCO3.3Zn (OH) 2 film, this layer of basic zinc carbonate is closely, can also be used as protective film to prevent oxidation of internal zinc will no longer be continued.

假設(shè)鍍鋅層一旦被損壞今后，發(fā)生電化的腐蝕，由于鋅比鐵生動，鋅將作為原電池負極發(fā)生氧化的反應而遭到損耗，鐵遭到了保護，與鍍錫鐵相反，馬口鐵發(fā)生電化的腐蝕時，由于鐵比錫生動，鐵則被保護在了里面。但假設(shè)錫層遭受分裂，由于錫是作為原電池正極，所以錫會讓鐵腐蝕地更快。

If the galvanized layer once broken in the future, the electrochemical corrosion, due to zinc than iron zinc will be vivid, as the original battery anode oxidation reaction by iron loss, was protected, contrary to tin, tin corrosion electrochemical is due to iron than tin iron vivid, protected inside. But it is assumed that the tin layer is divided, because tin is the positive electrode of the battery, so tin will make iron corrode faster.

白鐵特征：表面鍍鋅的鐵皮不易生銹。通稱鉛鐵、白鐵。為何不易生銹呢?這是在鐵的表面起到保護層的效果，一同假設(shè)鍍層損壞，還可以構(gòu)成鋅鐵原電池，鐵做正極，運用獻身陽極的陰極保護法原理。

Tin features: surface of galvanized iron rust. Known as the lead, tin. Why not rust? This is the protective layer effect on iron surface, together with the assumption of coating damage, can also be made of iron zinc primary battery, anode and cathode protection method using the principle of sacrifice anode.

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