铝-锌-铟系列铝阳较厂家

铝-锌-铟系列铝阳较厂家

铝合金牺牲阳较作为阳较的铝被其上析出的氧所氧化,形成无水的12O3膜；成的氧并不是全部与铝作用,一部分以气态的形式析出出于电阻率格外低，由此它可以起到加强阳较尺寸的效果，从而降下来地床的接地电阻。少部分电流通过直接接触从阳较传递到填料上，就此很大一部分材料消耗应发生在填料柱外面和边缘。出于在整个阳较地床结构上施加了正电位ie，为此必须保证电缆绝缘层和街头完好无损，密封防潮

海水中的暴露金属表面和涂覆金属表面都可采用阴较保护。无阴较保护的裸金属表面只能由逐渐生成的表面膜来保护，例如，钢板桩、储罐及铜合金管子。金属、腐蚀因素和表面涂层之间的物理作用，很大程度上取决于他们的化学、物理及结构的性质，也取决于其粘结性、渗透性、多孔性和厚度。应当注意，未加工面、船底切变薄或破损点，基体金属变为阳较，因而特别已受局部腐蚀。尤其在只用高性能涂料时，将使腐蚀剂的浸蚀作用限制在缺陷的小范围内，而不会逐渐扩大到那些无言中影响的区域。

铝-锌-铟系列铝阳较厂家阴较保护对裸金属表面相当有效，在涂层有小孔或破损的地方也能得到完全保护。沉淀产物可形成致密的表面覆盖层，产生表面膜，阻止干船坞中杂散电流，降低推进器的腐蚀。与表面涂层相反，阴较保护给出改变腐蚀反应的电化学保护。这些特性对表面涂层的保护性能是补充，而不是取代。

同土壤和淡水中一样，在海水中也可利用阳较或外加电流来实现阴较保护。

Definition 4: Since the corrosion of the metal protects the original corroded battery and accelerates its own corrosion, it is called the sacrificial anode. The sacrificial anode material should meet the following requirements:(L) There should be sufficient negative potential, and it is very stable.
Definition 5: Sacrifice anode(: sacrificialanode) is made of a metal material with a negative potential. When it is connected to a protected pipeline, it undergoes its own priority dissociation, thereby inhibiting the corrosion of the pipeline. It is called sacrifice anode. The sacrificial anode should have a sufficiently negative stabilizing potential to maintain a sufficiently large drive voltage: at the same time, there is a large theoretical generation of electricity, as well as a high and stable current efficiency.

铝-锌-铟系列铝阳较指定厂家

Definition 6: A metal or alloy with a sufficiently negative potential is called a sacrificial anode. Taking into account the risk of explosion of the original oil and gas itself, it is not reliable to avoid stray current in the crude oil storage tank using the external current anti-corrosion method.
Definition 7: The anode is continuously consumed while the cathode(protected structure) is protected, so it is called the sacrificial anode. The three ideal anodes are magnesium, aluminum, and zinc, and their corrosion potential in the natural environment is -10V(relative to Cu | CuSO4, the same below)

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