怎么選擇陰較保護(hù)材料鋁合金犧牲陽較

怎么選擇陰較保護(hù)材料鋁合金犧牲陽較

How to choose cathode protection material aluminum alloy sacrifice anode

陰較保護(hù)技術(shù)簡介陰較保護(hù)技術(shù)有兩種：犧牲陽較陰較保護(hù)和強(qiáng)制電流（外加電流）陰較保護(hù)。
公司主要產(chǎn)品：鎂合金犧牲陽較系列、鋁合金犧牲陽較系列、鋅合金犧牲陽較系列、壓鑄用鎂合金系列、鎂合金半連續(xù)鑄棒系列以及陰較保護(hù)配套產(chǎn)品等十幾個(gè)品種和上百種規(guī)格。我們的產(chǎn)品和技術(shù)主要應(yīng)用于石油化工、海洋平臺(tái)、城市管網(wǎng)、碼頭鋼樁、船舶、儲(chǔ)罐等陰較保護(hù)工程

鋁合金密度低，但強(qiáng)度比較高，接近或超過優(yōu)質(zhì)鋼，塑性好，可加工成各種型材，具有優(yōu)良的導(dǎo)電性、導(dǎo)熱性和抗蝕性，工業(yè)上廣泛使用，使用量僅次于鋼。一些鋁合金可以采用熱處理獲得良好的機(jī)械性能、物理性能和抗腐蝕性能。硬鋁合金屬AI—Cu—Mg系，一般含有少量的Mn，可熱處理強(qiáng)化．其特點(diǎn)是硬度大，但塑性較差。超硬鋁屬Al一Cu—Mg—Zn系，可熱處理強(qiáng)化，是室溫下強(qiáng)度的鋁合金，但耐腐蝕性差，高溫軟化快。鍛鋁合金主要是Al—Zn—Mg—Si系合金，雖然加入元素種類多，但是含量少，因而具有優(yōu)良的熱塑性，適宜鍛造，故又稱鍛造鋁合金。

Surface treatment technology has become an indispensable part in the use of aluminum alloys, and anodic oxidation technology is the most widely used and most successful. 3, cathodic protection technology refers to the parts of the ship that are in direct contact with seawater. Metals or alloys with lower electrode potentials than steel are electrically connected to the steel hull, making it a cathode in all directions; Or to continuously add to the steel hull the same direct current generated by the corrosion current in the same direction as the steel corrosion, the same direct current can be used as a cathode at 360 degrees, in addition to polarization., you can protect the steel hull from corrosion, That is, it is protected. There are protective measures for this type of protection. It is called the cathode protection of the ship. For the cathodic protection of ships, there are two kinds of sacrificial anode protection and applied current protection.

化學(xué)成分
種類  化學(xué)成份（%）
Zn  In  Cd  Sn  Mg  Si  Ti  雜質(zhì)，不大于  Al
Si  Fe  Cu
鋁-鋅-銦-鎘  2.5~ 4.5  0.018~ 0.050  0.005~ 0.020  —  —  —  —  0.10  0.15  0.01  余量
鋁-鋅-銦-錫  2.2~ 5.2  0.020~ 0.045  —  0.018~ 0.035  —  —  —  0.10  0.15  0.01  余量
鋁-鋅-銦-硅  5.5~ 7.0  0.025~ 0.035  —  —  —  0.10~ 0.15  —  0.10  0.15  0.01  余量
鋁-鋅-銦-錫-鎂  2.5~ 4.0  0.020~ 0.050  —  0.025~ 0.075  0.50~ 1.00  —  —  0.10  0.15  0.01  余量
鋁-鋅-銦-鎂-鈦  4.0~ 7.0  0.020~ 0.050  —  —  0.50~ 1.50  —  0.01 ~0.08  0.10  0.15  0.01  余量
電化學(xué)性能：
類型  開路電位 (-V)  閉路電位 (-V)  實(shí)際電容量 A.h/Kg  電流效率 溶解狀況
AA-Ⅰ 1.05-1.18      1.05-1.12      2400min          85min  溶解均勻
AA-Ⅱ 1.05-1.18      1.05-1.12      2600min          92min  溶解均勻
規(guī)格:16kg,22kg,23kg,35kg,50kg,85kg,120kg,131kg,180kg

lb17184466