?!DOCTYPE HTML>
酸化~蚀剂由多种h~蚀性能的成分复配而成Q缓蚀l分能牢固的吔R在金属表面,形成|状多层致密的保护膜Q阻隔酸液与金属表面的接触,减缓金属腐蚀。本品具有化学性能E_、适应性强Q可用与盐酸、土酸的施工作业?/span>
▶表1 酸化~蚀剂主要技术指?/span>
?nbsp; ?/span> | ?nbsp; ?/span> | ||||
外观 | 均匀液体 | ||||
溶解?/span> | 易分散于怸Q均匀透明 | ||||
腐蚀速率评h(hun)指标 | 一U?/span> | 二 | 三 | ||
常压静态腐蚀速率Q?g/(m2·h) |
60 ℃,4 h | 15%HClQ?%~蚀?/span> | ? | ? | ? |
20%HClQ?%~蚀?/span> | ? | ? | ? | ||
12%HClQ?%HFQ?.5%~蚀?/span> | ? | ? | ? | ||
90 ℃,4 h | 15%HClQ?%~蚀?/span> | ? | ? | ?0 | |
20%HClQ?%~蚀?/span> | ? | ?0 | ?5 | ||
12%HClQ?%HFQ?%~蚀?/span> | ? | ?0 | ?5 | ||
15%HClQ?%~蚀?/span> | ?0 | ?0 | ?0 | ||
120 ℃,16 MPaQ?/span> 60 r/minQ?/span>4 h | 20%HClQ?%~蚀?/span> | ?0 | ?0 | ?0 | |
12%HClQ?%HFQ?%~蚀?/span> | ?0 | ?0 | ?0 | ||
140 ℃,16 MPaQ?/span> 60 r/minQ?/span>4 h
| 15%HClQ?%~蚀?/span> | ?0 | ?0 | ?0 | |
20%HClQ?%~蚀?/span> | ?0 | ?0 | ?0 | ||
12%HClQ?%HFQ?%~蚀?/span> | ?0 | ?0 | ?0 | ||
160 ℃,16 MPaQ?/span> 60 r/minQ?/span>4 h | 15%HClQ?%~蚀?/span> | ?0 | ?0 | ?00 | |
20%HClQ?%~蚀?/span> | ?0 | ?0 | ?00 | ||
12%HClQ?%HFQ?%~蚀?/span> | ?0 | ?0 | ?0 | ||
180 ℃,16 MPaQ?/span> 60 r/minQ?/span>4 h | 15%HClQ?%~蚀?/span> | ?0 | ?00 | ?20 | |
20%HClQ?%~蚀?/span> | ?0 | ?00 | ?20 | ||
12%HClQ?%HFQ?%~蚀?/span> | ?0 | ?0 | ?10 | ||
高温E_? | ? U?/span> | ||||
有机氯含?/span> | 0% | ||||
仅用条件ؓ(f) 120℃及(qing)以上的酸化缓蚀剂需要测定高温稳定性?/span> |