发明名称 |
METHOD AND EROSION CONTROL OF ELECTRODE FURNACE FOR O2/N2 GAS ANYALSIS IN STEEL MATERIALS |
摘要 |
The method prevents erosion of the graphite crucible in analyzing O/N in iron by an infrared absorption method and thermal conduction detecting method and comprises the following 8 steps: (1) machining a specimen by use of a lathe; (2) weighing 8.5-15 wt.% powder graphite and 10-30 wt.% metal Tin for the graphite crucible; (3) putting them in a crucible; (4) after weighing the specimen, inputting its weight to computer; (5) putting the crucible into an electrode furnace and heating to a high temperature; (6) analyzing; (7) lifting out the crucible; (8) after removing residual (Fe-Sn-C), recycling the crucible.
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申请公布号 |
KR920008697(B1) |
申请公布日期 |
1992.10.08 |
申请号 |
KR19900022692 |
申请日期 |
1990.12.31 |
申请人 |
POHANG IRON & STEEL CO., LTD.;KOREA INDUSTRIAL TECHNOLOGY INSTITUTE |
发明人 |
KWAK, CHOL;HO, UN |
分类号 |
F27B14/00;F27D3/00;(IPC1-7):F27D3/00 |
主分类号 |
F27B14/00 |
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