Wird geladen...
Wird geladen...
An aluminium furnace was delivering 3 tonnes instead of 4. The cause was not wear, but up to 100 mm of gunned concrete that a previous contractor had applied over slag.
The cross-section of a tree tells you its age: the more rings, the older it is. The same logic applies inside an aluminium furnace — except that here, more is not better. A customer got in touch because his furnace, despite regular maintenance, was only delivering 3 tonnes per cycle instead of the 4 it was designed for. The cold clean-out revealed the reason: the previous maintenance contractor had applied gunned concrete several times over — over slag and over old layers that had never been removed. In places, this had built up to an applied thickness of as much as 100 millimetres.
If a furnace produces less than it used to while being operated in exactly the same way, the first question is not what is missing — but what there is too much of.
Professional maintenance of an aluminium furnace uncovers faulty repairs by a previous contractor – after correction, around 20 tonnes more aluminium per month and noticeably reduced energy consumption.
Professional maintenance gunning with a 5–7 cm protective layer to extend service life – prevents slag build-up and sustainably increases aluminium yield.
Whether complete relining, repair or emergency — free initial consultation and a fast response.
