Surface Preparation Of Structures
Surface Preparation Of Structures
ON PREVIEW CASSETTE # 220813 & 202001A Fade in on pan of Chicago structural steel and concrete construction skyscraper foundation; super titles and credits. Pan past J.S. Alberici signs past St Louis arch to see structural steel used in bridge superhighway approach. Cut to rusting steel steps; cut to dirty ship hull in drydock. pan guard rails as cars go by. Diss to art work, cutaway of surface of steel, and development of millscale. Corrosion begins and spreads, and cracks off. Art shows coating over freshly prepared steel etched surface. Cut to brush cleaning by hand with small motor; acid bath; and workman preparing and using his sandblasting equipment. Diss to art, explaining the Wheelabrator blast wheel process. Art shows pellets bouncing from steel. Art: wasteful sand blasting vs. efficient Wheelabrator steel shot blasting unit. Cut to blast cabinet, as man demonstrates the blast pattern on a piece of steel. Art shows a three-wheel Wheelabratror. Art shows how collector separates and returns abrasive for reuse. Power roll conveyers feed steel; finished blasted, cleaned I beam leaves the blast unit on a work car. Close in to see the cleaned surface. Hanger conveyer brings steel fabrication out, cleaned. Workman spray paints the steel immediately after it is cleaned. Pan steel surfaces. Zoom in on control console. Long shot full unit. Art: pellets break away the scale. CU etched surface. Variety of etches achieved with sharp or smooth abrasive. CU blast particles of different sizes for cleaning. Workman adds a sack of abrasive to the operating mix. Flat steel plate emerges, cleaned. Workman sprays coating in yard. Welding LS; plans are in the foregound. Dirty beam with studs goes into Wheelabrator, and emerges, cleaned. CU the cleaned beam with studs. Titles zoom in, showing organizations and states who now specifiy blast cleaned steel. Lift truck picks up beam, cleaned and painted. Camera full on. Super W/A end logo. 500' 16mm sound color film on blue plastic GB 600' reel in red plastic shipping case. Frink (FFV 3) has A and B original rolls, mag and optical tracks, script and ancillary materials.