Optical control of tubular film size

Details Optical control of tubular film size Optical control of tubular film size

B - Operations, Transporting

29

C

18/522

B29C 47/88 (2006.01) B29C 47/90 (2006.01) B29C 47/92 (2006.01) G05D 5/06 (2006.01)

Patent

CA 1144318

Abstract of the Invention An internally-cooled blown-film system, for producing plastic tubing, in which the flow rate of the continuous flow of internal cooling air, through sensing means, is made directly dependent upon the deviation in position of the tube wall.

340866

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