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["암수관관 부식 문제에 대해",,"저厎厂净化装置,低温甲醇洗4套,混合制冷装置4套,混合制冷给低温甲醇洗提供冷量,目前混合制冷设备、管道腐蚀严重,原因补明,哪位大师有经验,我参考参考?","암수 자체는 탄소강관에 부식이 있지만 특히應厂应力腐蚀开裂,应该是焊缝位置比较厉害 如果是焊缝位置开裂 首先考虑焊缝的硬度是不是过高。如果是均匀腐蚀减薄那得看下管道流速是否过快?化验下介质成分看是否有其它腐蚀介质","应该是除氢腐蚀 氨中没有氧 氨夺得得金属晶体中的金属阳离子而成配离子 可以理解为 氢的置换 那个与溶解氧无关 氨水NH4+",}

2017-02-22View Original

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我厂净化装置,低温甲醇洗4套,混合制冷装置4套,混合制冷给低温甲醇洗提供冷量,目前混合制冷设备、管道腐蚀严重,原因补明,哪位大师有经验,我参考参考?
Reply #22017-02-22
氨水本身对碳钢管道就是有腐蚀的,但主要是应力腐蚀开裂 应该是焊缝位置比较厉害 如果是焊缝位置开裂 首先考虑焊缝的硬度是不是过高。如果是均匀腐蚀减薄那得看下管道流速是否过快?化验下介质成分看是否有其它腐蚀介质
Reply #32017-02-22
应该是去氢腐蚀 氨中没有氧,氨夺得金属晶体中的金属阳离子而成配离子,可以理解为 氢的置换 那个与溶解氧无关,氨水NH4+·OH- 应该是去氢腐蚀,

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