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v0.31:Metal industry
| This article is about an older version of DF. |
The metal industry is a catch all phrase for both the smelting of raw ore into metal bar (as well as alloys) and turning those bars into crafts, furniture, weapons and armor. It can be very profitable to produce statues and furniture for hallways or trade goods as many metals have high value. It also alloys the production of high-quality weapons and armour for your military.
Ore
Requires: A Miner
Ore is the generic term for a mineral that contains metal. Avaliable ore can vary largely in different areas, Iron (and thus Steel) occurs almost exclusively in Sedimentary layers while Gold only occurs in Igenous layers. Stone layers should be carefully considered when embarking as ores and bars can only be imported in small quantities.
By default all ore is reserved for smelting, thus unavaliable for use via Masons and Stonecrafters.
You can adjust which ores are avaliable for use by masons or crafters in the Status menu. This may be preferable if you have a mason or craftsdwarf with a higher skill level than any metalsmiths ore wish to quickly produce valuable furniture or crafts.
Smelting
Requires: A Furnace Operator, a Smelter and ore(s).
Once an ore is mined it can be turned into a metal bar. Bars do not have the quality and the only advantage of a higher skilled Furnace Op is that tasks will be completed faster. Small ore stockpiles should be established near smelters so Furnace Ops don't have to walk long distances to fetch ore. Smelters are prone to cluttering, so free space on your bar stockpiles and plenty of bins is vital for efficiency.
Powering Furnaces
Furnaces requires heats; this comes in two forms: Fuel and Magma
Fuel
Coke/coal/refined coal can be made from wood at a Wood Furnace, as well as Lignite and Bituminous Coal at a Smelter. All fuels are identical. Fuel can also be purchased during embark preparations.
Magma
Once magma has been encountered Magma smelters will become available in the Furnace build menu. Magma smelters are only powered when built 1 z-level above at least one tile of open magma, the magma must be at least 4/7 in depth, if the depth falls below 4/7 all jobs will be canceled.
Alloys
Pure metals can be combined at smelters to produce alloys. Some alloys such as Brass can be smelters for a net gain in value, others such as Rose gold for unique colours.
Spoils of war
The equipment of invaders can be melted down into bars (note: Elves only use wooden equipment). Equipment of fallen enemies must first be reclaimed and then marked for melting (d-b-m ?). The equipment of caged enemies can also be taken by mass dumping [d]-[b]-[d] (an accessible garbage zone is required) a caged creature (manually reclaim the caged creature via the [k] inspect menu to prevent it from being dumped too) and then reclaiming and marking for melting as explained above.
Once an object has been marked for melting it will be melted down in a smelter that has an active "Melt Object" job.