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Hot Topping Compounds

LINOFEED

The LINOFEED range of products Hüttenes-Albertus are designed to produce high calorific values, high levels of insulation or combinations of both properties in order to promote the feeding of a wide range of alloy types and casting sizes.

LINOFEED 430

Thermite type carbon free material specifically developed for use with manganese steels to prevent piping. Linofeed 430 is a black speckled powder containing visible coarse metallic particles. It is an anti-piping compound, specially formulated for use with manganese steels, but is also applicable to other ferrous alloys. Linofeed 430 is a thermite type material, which generates very high temperatures in a molten slag, and forms a metal bead. Linofeed 430 may be added to the surface of alloy steel rolls immediately after casting, to provide an intense heat, before the addition of Linofeed 470 which forms a highly insulating cover.

LINOFEED 450

A non-carbonaceous, insulating, exfoliating compound suitable for use with a wide variety of steel rolls, ingot steels and alloy steels with large diameter risers. LINOFEED 450 is a grey, non-carbonaceous exfoliating compound. LINOFEED 450 is a very efficient semi-crusting hot topping compound, and is suitable for use with a wide range of ingot steels and other ferrous castings with large diameter risers and feeder heads. Due to its very low bulk density (approximately 0.7 g/cc) LINOFEED 450 is very economical to use. LINOFEED 450 exfoliates 50% of its volume, has high exothermic values and the heat retention properties are excellent. There is practically no fume evolved when exotherming takes place.

LINOFEED 460

Fast firing hot topping compound for use with Spheroidal Graphite Iron, small to medium diameter steel risers, brasses and bronzes. LINOFEED 460 is a granular brown coloured exothermic material of medium bulk density. LINOFEED 460 is a very fast firing material, generating intense heat and producing a highly insulating, self supporting crust. LINOFEED 460 will assist the efficient feeding of a wide range of alloys, including cast iron and alloy steel casting risers, and can also be used with brasses and bronzes. Very satisfactory results can be obtained using LINOFEED 460 in conjunction with exothermic and insulating sleeves.

LINOFEED 470

A low bulk density, low fume, carbon free insulating compound. Forms a self-supporting crust that possesses excellent insulating properties. May be used on a wide variety of cast irons and steel risers with diameter from 10cm to 50cm. LINOFEED 470 is a light grey powder containing white granules. LINOFEED 470 can be used on a wide variety of steel and iron risers with diameters between 70mm and 500mm.

EXF 282

Very fast firing material generating intense heat. EXF282 is a metallic grey granular material of medium bulk density. EXF282 produces a highly insulating, self supporting crust. EXF282 will assist the efficient feeding of a wide range of alloys, from copper base to stainless steel, and including investment cast steel alloys.

EXF 323

EXF 323 is a metallic grey powder of medium bulk density. It is a high quality, exothermic hot topping compound for use with aluminium alloys and aluminium bronzes. Ignition of EXF 323 takes place a few seconds after application to molten metal, producing a controlled high temperature burn to avoid the generation of excessive fume during use, and also forms a self supporting, insulating crust.

To ensure an optimized product selection according to your needs; please contact your nearest HA-Representative.


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