Share

Gellir lawrlwytho cynnwys at ddefnydd anfasnachol, megis defnydd personol neu ar gyfer adnoddau addysgol.
Ar gyfer defnydd masnachol cysyllwch yn uniongyrchol gyda deilydd yr hawlfraint os gwelwch yn dda.
Read more about the The Creative Archive Licence.

Download link to the full resolution of image number 1 Delwedd 1 (opens in new window)full resolution of image 1

Disgrifiad

Rhan o albwm ffotograffau 'A Visit to the Welsh Aluminium Works'.

Oes gennych chi wybodaeth ychwanegol am yr eitem hon? Gadewch sylwad isod

Sylwadau (1)

Martyn Leonard Alderman's profile picture
Aluminium Corporation was founded in 1907 as an aluminium smelting operation using hydroelectric power with water piped from Llyn Eigau and Llyn Cowlyd to the turbines and their DC generator sets in the Conwy valley. It continued this operation until almost the end of WWII when aluminium ingots brought in from Canada were found to be cheaper to remelt than to continue to smelt alumina on site. This picture shows carbon anode blocks 10" x 10" x 12" being pressed from a carbon "pug" paste mill. These anodes were prebaked in the Mendeheim ovens and then consumed by the electroltyic cells in the reduction of alumina to aluminium which took place in a bath of molten cryolite at 950 degrees Celsius.

Rhaid mewngofnodi i bostio sylw

Mwy o hanes Cymreig

PXL_20230411_155053524.jpg

PXL_20230411_155053524.jpg
  • 35
  • Use stars to collect & save items mewngofnodi
BAL Brochure 1997 Cover.jpg

BAL Brochure 1997 Cover.jpg
  • 24
  • Use stars to collect & save items mewngofnodi
1960au Llawlyfr Cynnyrch Corfforaeth Alwminiwm,...

1960au Llawlyfr Cynnyrch Corfforaeth Alwminiwm,...
  • 29
  • Use stars to collect & save items mewngofnodi
Orenstein & Koppel 0-4-0 Tank Engine Eigiau...

Orenstein & Koppel 0-4-0 Tank Engine Eigiau...
  • 32
  • Use stars to collect & save items mewngofnodi

Gall cyfraniadau i Gasgliad y Werin Cymru gynnwys disgrifiadau a darluniadau hanesyddol sy’n anghywir yn ffeithiol, sy’n drefedigaethol, sy’n hiliol, sy’n wahaniaethol neu sy’n amhriodol mewn ffordd arall. At hynny, mae’n bosibl y bydd eitemau’n defnyddio iaith a gymerwyd o ddogfennau hanesyddol, sydd bellach wedi dyddio ac yn ddifrïol. Byddem yn croesawu eich help i adnabod eitemau sy’n tramgwyddo neu’n niweidio pobl, a byddem yn ddiolchgar pe baech yn cysylltu â ni yma [email protected].