| 发明名称 |
A TESTING METHOD FOR THE PURITY OF SLAB |
| 摘要 |
A method for estimating a cleanliness of the cast slab comprises (a) grinding and cleaning a specimentaken from the cast slab, (b) electrolyzing the specimen for 20-30 minutes in an electrolytic soluton consisting of tetramethy ammonium chloride under the condition of 3-4 pH, 750-1300mA electric current, and (c) observing the specimen with the stereomicroscope and monitor.
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| 申请公布号 |
KR910004116(B1) |
申请公布日期 |
1991.06.22 |
| 申请号 |
KR19880017838 |
申请日期 |
1988.12.29 |
| 申请人 |
KOREA INDUSTRIAL TECHNOLOGY INSTITUTE;POHANG IRON & STEEL CO.,LTD. |
发明人 |
PARK HAK-RYOL;KIM DONG-SIK;CHONG YON-DAE;AN BYUNG-KWAN |
| 分类号 |
G01N33/20;(IPC1-7):G01N33/20 |
主分类号 |
G01N33/20 |
| 代理机构 |
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