Bayperon (furnace)

woobian bladesmithing - every woobian blade consists of the two precious metals; bronze, and iron where the copper acts as a base to create a bronze-iron master alloy. quicklime is then added and slaked dramatically; increasing the internal temperature and binding the bronze-iron to the lime

- a tripart kiln is a furnace used in woobia in order to create the special alloy blades ^three dome-shaped kilns are aligned horizontally far apart from eachother with hollow tops, typically two of the kilns are connected via a tube on the side with multiple holes to let out air. these holes regulate the temperature within the kiln and can be covered or opened depending on if a woobian thinks the temperature needs to be hotter or colder ^the kilns are usually raised upon a hollow slab which is dug down straight about 2-3 ft where the middle kiln is, this is where wood and scraps are fed into the fire. the kilns on the sides are usually dug down 1-2 ft and have a curve connecting the deeper centre with the sides ^ usually the slab part of the kiln is covered when heating up the kiln

- usually bronze is placed into the kiln on the left and shells on the right first before iron and the bronze occasionally taken out of the kiln to quicky dunk into cold water and put back into the kiln about 1-5 times which strengthens the alloy by tempering it and forcing the outside of the metal to harden while the interior cools down - at around 1000 F when the bronze becomes soft and maleable again, iron is placed into the middle kiln to melt down - at around 1200-1500 the shells will break down into quicklime (CaO) and are taken out of the kiln when they solidify into rock-like structures - the quicklime is exposed to cold air which hardens the structure - at around 2100-2500 F as the iron begins to melt down and the bronze is fully liquidised, the bronze and iron are casted/combined into one where it forms a bronze-iron master alloy - once the iron and bronze are casted together it is thoroughly mixed usually with a clay or terracotta stick as the holes in the connecting tubes are uncovered and the fire isnt fed anymore - once the iron and bronze are a consistent colour, a little bit of water is reacted with quicklime and poured into the bronze-iron liquid, followed by this a steady stream of cold water is poured into the kiln whilst roughly mixing it which raises the internal temperature rapidly due to the quicklime turning into slaked lime - as the slaked lime forms it generates about 400-500 F of heat which raises in the internal temperature of the kiln to 2500-3000 F, melting the iron and anything else that was in a semi-solid state completely into liquid - the mixture is then roughly beat-stirred for 10-15 minutes in order to bond the slaked lime with the metals ^ during this time the temperature is kept at a consistent 2600-2900 F and all coverings on the top and tubes are opened in order to let out smoke and prevent the slaked lime from becoming carbonated - the mixture must kept being stirred occasionally as the temperature cools down for about another 1-5 minutes - the mixture is then taken out and poured into an overlong blade mould or desired base mould made of silica/sand called a gĩnk nējdū which is left to set - the kilns fire pit is then opened and fed with charcoal and other scraps to be used as a fire-forgerer - once the mixture has solidifed and set it is removed from the cast/mould and heated inside of the fire until it becomes softened - the long blade is then folded over and hammered down flatly in order to distribute the bronze and limestone in the alloy and strengthen it

- beat-stirring is a method of stirring molten metals by the wooba ^ a special curved flat and thin hammer is used in order to pound the liquid in a repeated up and down motion while stirring it which further mixes metals together as the internal temperature rises