Stage in production of bar iron or steel
This article is about the industrial steel manufacturing process. For the text mining technique, see
w-shingling.
Shingling was a stage in the production ofbar iron orsteel, in thefinery andpuddling processes. As with many ironmaking terms, this is derived from the French -cinglage.
The product of the finery was abloom or loop (fromold Frankishluppa or lopp, meaning a shapeless mass); that of the puddling furnace was a puddled ball. In each case, this needed to be consolidated by hammering it into a more regular shape. This was done manually with heavy hammers; later by awaterwheel or steam powered hammers, leading to modernpower hammers. The result was an oblong-shaped iron product similar in appearance to shingles used on roofs. In the finery, this was part of the work of the finer; during puddling, it was done by a special workman called the shingler. The iron (or steel) then had to be further shaped (drawn out) under the hammer or rolled in arolling mill to produce a bar. In more recent times, the process was carried out using mechanical jaws to squeeze the puddled ball into shape.
- H. R. Schubert,History of the British iron and steel industry (1957), 285-6
- W. K. V. Gale,The iron and steel industry: a dictionary of terms (Newton Abbot, 1971), 184.
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