| 摘要 |
A lance for taking a sample of molten metal comprising an outer-housing or elongated holder tube, a metal mould set at one end of the housing or holder tube, there being at least one opening in the housing or holder tube adjacent an opening in the mould to allow molten metal to flow into the mould when the lance is immersed in molten metal, a refractory lining to the mould, and temperature-sensing means within the mould adapted to record the liquidus arrest temperature of the sample within the mould.
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