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Rath's Altra Composite System (ACS) is a new concept in modular insulation design for use up to 1750C. It uses Rath's KVS or KVR vacuum formed,
pre-shaped, tongue and grooved boards (for side walls) and suspended board modules for roof areas. The use of light weight, thermally shock resistant ceramic fiber provides the equipment manufacturers and
insulation end user with the following benefits over conventional brick designs:
- rapid heat up to 1750C
- Low heat storage, allowing rapid cool down
- Higher throughput / increased capacity utilization
- Better energy efficiency
- Design flexibility - thinner walls, less mass, smaller footprint, elimination of arched roof construction
The Altra Composite System (ACS) is custom designed to meet the needs of the individual process utilizing several mullite bonded composition for use up to 1750C for
use in oxidizing environments, or in alumina bonded compositions for mildly corrosive or slightly reducing environments.
Process applications already utilizing the ACS are:
Electronic ceramics
- Fiber optic glass
- Technical ceramics
- Biomedical ceramics
- Aerospace Composites
- Microwave Sintering
- Refractory bricks and shapes
The picture shown above is a 10m3 (107 ft3) 1750oC (3182oF) furnace. It was initially installed in early 1988 utilizing
the ACS design and was built for the firing of insulating firebrick (IFB) up to ASTM grade 34 and special bricks for waste incineration.
The ACS construcstion allows the furnace to be utilized in a more flexible way than any conventional brick lined furnace.
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