A precast, pre-fired ceramic channel for channel induction furnaces melting and holding copper, brass, zinc and aluminum.
The channel is where an inductor wears out.
CeraLoop makes it from fired ceramic before it goes into the box.
A precast inductor lining extends channel furnace campaigns because the channel, the part that wears first, is already a dense, fired, non-wetting ceramic when the furnace starts, instead of a rammed or cast refractory that sinters in place and soaks up metal. CeraLoop is that channel: a one or multi piece ceramic loop set into the inductor box and backed with dry vibe or castable, with no burnout, no melt-out and no wash heat. In a brass foundry, the second CeraLoop reached 300% of the previous campaign length.
The loop channel carries the hottest, fastest moving metal in the furnace, a few inches from the coil. Six damage patterns end most inductor campaigns:
A channel that is fired before it meets metal has nothing left to sinter and nothing open to soak up, so the campaign starts with the hot face it is meant to keep.
CeraLoop is a pre-fired ceramic channel lining, made for the inductor of each customer. It forms the hot face between the molten metal and the backup refractory, which is cast or vibrated around it in the inductor box.
| Geometries | Single, double, slanted and canoe loops |
| Materials | Ultra high alumina, silicon carbides |
| Metals | Copper, brass, bronze, zinc, galvanized alloys, galvalume, aluminum, iron |
| Start-up | Any alloy, no burnout, no melt-out, no wash heat |
CeraLoop is distributed exclusively by Allied Mineral Products, which also supplies the backup materials that go around the loop.
Four steps, without forming or burning out a channel on site.
The ceramic lining is designed and fired for your furnace, inductor and alloy.
The fired channel is set in its place in the furnace and inductor assembly.
The backup refractory is cast or vibrated around the ceramic, with Allied materials that sinter against the fired hot face.
With the hot face already fired, the inductor can start with any alloy and heats up faster.
A foundry making waterworks products ran four 10,000 lb channel furnaces with 500 kW twin loop inductors on leaded brass C83600 and lead-free brass C89833.
On leaded brass, zinc vapor had cut inductor life by up to 90%. Several castables and dry vibes had been tried without success.
The first CeraLoop, in Procaster-C high purity alumina, ran from March to August 2019 and carried about twice the tonnage of the previous linings. At teardown the loop was still intact. The second CeraLoop, installed in October 2019, reached 300% of the previous campaign length.
How the system performs in an aluminum zinc alloy furnace is shown in the CeraLoop case study on zinc alloy furnaces.
CeraLoop belongs to the non-ferrous and aluminum products.
Segmented linings for the other type of induction furnace, from 650 to 15,000 lb.
No. The hot face is fired before installation, so there is no former to burn or melt out and no wash heat. The furnace can start with any alloy.
Copper, brass, bronze, zinc, galvanized alloys, galvalume, aluminum and iron.
Yes. Each loop is made for the customer's furnace and inductor, in single, double, slanted or canoe geometry.
CeraLoop is distributed exclusively by Allied Mineral Products. A Blasch engineer can help with the loop design and put you in touch with Allied.
Send the furnace, the inductor type and the alloys you melt. A Blasch engineer checks which CeraLoop geometry fits.
