报导了纯铁浮区熔化过程中杂质碳、氧的行为。电解铁经真空感应熔炼和真空铸锭后,制成直径为10毫米的试样。当区域熔化时,熔区下的试样以3.5—22转/分的速度旋转,而熔区自下而上地以1—2毫米/分的速度沿试样移动。试样经过11次区域熔化。 根据碳的分布系数的测定和区熔前后试样中夹杂物的金相鉴定,讨论了区域熔化法去除铁中碳、氧杂质的可能性。
Vacuum melted and cast electrolytic iron bar, 10 mm in diameter, has been refinedby the floating-zone technique for eleven passes in an atmosphere of hydrogen. Thetravel rate of the zone was 1-2 mm/min and the lower chuck was rotated at a speed of3.5-22 rpm. On the basis of the measured distribution coefficient of carbon and metallographicexamination of the non-metallic inclusions the possibility of removing carbon and oxygenfrom iron by floating-zone melting is discussed.
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