| 发明名称 | Pickling method and pickling system of steel plate | ||
| 摘要 | The present invention is a method of pickling of steel plate which contains silicon comprising applying ultrasonic waves of at least two types of frequencies of 28.0 kHz or more to less than 1.0 MHz to an acidic cleaning solution which contains microbubbles and, in that state, dipping the steel plate which contains silicon in that cleaning solution. The present invention is a continuous pickling system of steel plate which contains silicon which is provided with at least a support part which supports the steel plate, a conveyor which makes the steel plate move, and a pickling tank which pickles the steel plate, wherein the pickling tank has means for feeding microbubbles and means for applying ultrasonic waves of at least two types of frequencies of 28.0 kHz or more to less than 1.0 MHz. | ||
| 申请公布号 | US9228266(B2) | 申请公布日期 | 2016.01.05 |
| 申请号 | US201013513204 | 申请日期 | 2010.05.25 |
| 申请人 | NIPPON STEEL & SUMITOMO METAL CORPORATION | 发明人 | Nishimoto Takumi;Uemura Kenichi |
| 分类号 | B08B3/12;C23G1/08;C23G3/00;C23G3/02 | 主分类号 | B08B3/12 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A method of acid cleaning of a steel plate which contains silicon, said method of acid cleaning of the steel plate characterized in that an acid cleaning solution contains microbubbles, ultrasonic waves which have at least two types of frequencies are applied to the acid cleaning solution, and the frequencies of the ultrasonic waves are frequencies of 28.0 kHz or more to less than 1.0 MHz, wherein, in said frequencies of the ultrasonic waves, a lowest frequency f1 and a highest frequency f2 are in a relationship of: 0.24≦|log(f1)−log(f2)|≦1.55. | ||
| 地址 | Tokyo JP | ||