
[化学] 阳极保护
An anodic protection cooler for sulfuric acid production has been designed and fabricated.
设计、制造国内首台阳极保护酸冷却器。
It was proved that the anodic protection can not be applied in rotary spherical degester in ammonium sulfite cooking.
结果表明,对亚铵法蒸球不能应用外加电流阳极保护法。
However the poor bond between the anticorrosion casting coating and steel-foot would weaken the anodic protection of zinc.
然而,防腐蚀铸层与钢脚间的结合不良将削弱锌的阳极保护作用。
Various measures were taken depending on whether acid circulated or not to keep the acid cooler in the safe area of anodic protection with a stable passive film and thereby lone service life.
针对停车期间酸是否循环提出不同的应对措施,以使酸冷却器位于阳极保护的安全区,确保钝化膜的稳定,延长设备的使用寿命。
If DS series high-silicon austenitic stainless steel is used to make other equipment and pipe fittings, the anodic protection system is not necessary, which offers wide prospect of application.
若用DS系列高硅奥氏体不锈钢制作其他设备和管件等,可不设阳极保护系统,应用前景广阔。
阳极保护(Anodic Protection)是一种通过电化学手段控制金属腐蚀的技术,其核心原理是将金属维持在钝化区以降低腐蚀速率。当金属作为阳极时,通过施加外部电流或调节环境参数,使其表面形成稳定的钝化膜,从而抑制进一步氧化反应。
阳极保护的有效性依赖于金属的钝化特性,例如不锈钢、钛合金等在特定介质中可形成致密氧化膜。实施需满足三个条件:
该技术广泛应用于:
相较于阴极保护,阳极保护具有电流需求小(约1-10mA/m²)、适用强腐蚀介质等优势,但需要更精密的电位监控系统。美国腐蚀工程师协会(NACE SP0177)标准指出,该技术可降低90%以上的腐蚀损耗。
关键参数包括:
Anodic Protection(阳极保护)是一种电化学防腐技术,通过施加外部电流使金属表面形成稳定的钝化膜,从而减缓或阻止腐蚀。以下是详细解释:
该技术需结合具体工况设计,实际应用中需严格控制系统参数。更多案例可参考电化学防腐文献。
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