An animation of how an InterLok segmented crucible lining goes into a coreless induction furnace.
No mortar joints, no one piece shell.
Segments, ram and a spring loaded plate, in that order.
The InterLok installation animation shows how the InterLok segmented crucible lining is installed in a coreless induction furnace: slip plane and backup ram go in first, then the InterLok base and the courses of tongue and groove segments, each rammed behind as it rises, then a plastic refractory topping, the spout and a metal hold down plate connected to the spring pack of the furnace. The lining has no mortar joints, so it can expand and contract through every heat.
InterLok is sold as a complete lining system: dense, fully fired, non wetting segments with pre designed interlocking expansion joints, the matched backup ram, slip plane, plastic topping and hold down. Options include cast in pour spouts, custom geometry and bottom pour, for vacuum, air melt and atomizing furnaces.
Every step in the animation leaves the lining room to grow, from the gaps between the segments to the springs on top, because a lining that cannot move will crack until it can.
The animation shows that the install sequence is the same every time, which makes relines and tear outs predictable to plan. The modular segments also come out as segments, so tear out takes less force than breaking out a sintered lining.
Sizes and options are on the page for the InterLok segmented crucible lining, and the backup materials on the page for ALRAM backup ram. Why the lining is segmented at all is explained in the InterLok white paper presentation.
No. The segments interlock with tongue and groove joints and designed expansion gaps. Ram goes behind them, not between them.
It sits on top of the lining and is connected to springs in the furnace, so the lining is held together while it grows and shrinks in height.
Medium and large coreless induction furnaces in air or vacuum, including atomizing furnaces. The product sheet lists sizes from 650 to 15,000 lb of steel.
Send the furnace capacity, the coil dimensions and the alloys you melt. A Blasch engineer works out the segments and the backup ram.
