The DR furnace is a steel vessel with an internal refractorylining in the reducing zone.
直接还原炉是一种钢制容器，在其还原带内具有耐火材料做的炉衬。
2
High temperature performance of acid lining of the induction crucible furnace mainly depends on the physical and chemical properties and mineral composition of used refractory.
坩埚式感应炉酸性炉衬的高温性能，主要取决于所用耐火材料的物理、化学性能及矿物组成。
3
A new method was found for heating up furnacelining by painting refractory fiber on constant pressure furnacelining.