puddling process
E2236
The puddling process was an early industrial method for converting pig iron into wrought iron in a reverberatory furnace, widely used before being superseded by more efficient steelmaking techniques.
All labels observed (1)
| Label | Occurrences |
|---|---|
| puddling process canonical | 1 |
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
industrial process
ⓘ
ironmaking process ⓘ metallurgical process ⓘ |
| basedOn | oxidation of impurities in molten iron ⓘ |
| characteristicFeature |
separation of fuel from metal by furnace roof
ⓘ
stirring of molten metal by puddler ⓘ use of oxidizing atmosphere in furnace ⓘ |
| developedIn |
18th century
ⓘ
19th century ⓘ |
| energySource |
coal
ⓘ
coke ⓘ |
| field |
history of technology
ⓘ
metallurgy ⓘ |
| followedByStep |
rolling into bars
ⓘ
shingling ⓘ |
| hasLimitation |
difficult working conditions due to heat
ⓘ
labor-intensive ⓘ low productivity compared to later steelmaking ⓘ |
| historicalPeriodOfUse | Industrial Revolution ⓘ |
| mainlyUsedIn |
Europe
ⓘ
United Kingdom ⓘ United States of America ⓘ
surface form:
United States
|
| metalOutputForm |
bloom of wrought iron
ⓘ
puddle ball ⓘ |
| produces | wrought iron ⓘ |
| productMaterialType |
fibrous wrought iron
ⓘ
low-carbon iron ⓘ |
| relatedTo |
Bessemer process
ⓘ
surface form:
Bessemer converter
finery forge ⓘ open-hearth furnace ⓘ |
| removes |
carbon from pig iron
ⓘ
manganese from pig iron ⓘ other impurities from pig iron ⓘ silicon from pig iron ⓘ |
| replacedBy |
Bessemer process
ⓘ
modern steelmaking ⓘ open-hearth process ⓘ |
| requires | skilled manual labor ⓘ |
| significance |
enabled large-scale production of wrought iron
ⓘ
important for construction industry ⓘ important for development of railways ⓘ reduced dependence on charcoal in ironmaking ⓘ |
| status | obsolete ⓘ |
| usedBefore | widespread adoption of steelmaking ⓘ |
| usedFor | converting pig iron into wrought iron ⓘ |
| uses | reverberatory furnace ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.