Historic Cover Archive
1971 to 1969
1971 to 1969
Caption: After extensive modification, Ravenswood's five-stand hot finishing mill can now produce hot rolled coils up to 103 inches wide and weighing up to 40,000 pounds. Kaiser Aluminum installed tandem rewind reels, widened the roll tables at the mill entrance, and widened the faces on all the work rolls and backup rolls.
Caption: Five stand tandem continuous mill at Kaiser Aluminum's Trentwood, Washington, works reduces one inch slabs to sheet 1/10 inch thick at speeds up to 1000 feet per minute. (Photo courtesy Kaiser Aluminum.)
Caption: New sixteen-strand Loma billet casting installation with automated handling at the Wieland-Werke in West Germany.
Caption: Stretching wide aluminum plate in the 8 million pound stretcher at Alcoa's Davenport works.
Caption: At Eastalco semi-automatic pot tending crane performs a number of different functions: it breaks the surface crust on the pot, replenishes the pot with alumina, removes and replaces old anode units, and taps the molten metal for transport to the casting facility.
Caption: Equipment at right is trimming a coil of foil stock mounted on the "unwind" station of Alcoa's foil plant at Lebanon, Pennsylvania. Foil from this coil, which is 72 inches in diameter, will be used to package food and other products. Lebanon Works was built on 600 acres in the heart of Pennsylvania's Dutch country.
Caption: 168-inch United hot breakdown rolling mill at the Ravenswood, Virginia works of Kaiser Aluminum & Chemical Corporation.
Caption: More than 800 miles of foil can be rolled from this largest aluminum ingot ever cast in a reduction plant of Reynolds Metals Company. It weighs 36,500 pounds and was cast at Reynolds plant at Troutdale, Oregon, using a special mold on Troutdale's direct chill casting unit. It measures 24 inches by 78 inches and is 17, 1/4 feet in length. Ingots 14.6 feet long are produced on a regular basis at Troutdale. After being rolled into sheet at Reynolds McCook, Illinois, plant it most likely will be rolled into foil in Richmond, Virginia, and Louisville, Kentucky.
Caption: A coil of aluminum foil stock being trimmed at Alcoa's foil plant at Lebanon, Pennsylvania. Foil from this coil, which is 72 inches in diameter, will be used to package food and other products. Lebanon Works is on a 600-acre site in the heart of Pennsylvania's picturesque Dutch country.
Caption: An aluminum slab, 1/4 in. thick and 150 ft. long, enters the 110-inch hot reversing mill at the Ravenswood, West Virginia, plant of Kaiser Aluminum & Chemical Corporation.
Caption: Aluminum plate gets a smooth surface in a milling machine at Alcoa's Davenport (Iowa) Works. The surface cutter already has finished the right side of the plate with a characteristic milling pattern. The left side is unmilled. Capable of handling plate up to 10 feet wide and 40 feet long, the mill shapes, routs, contours and surfaces metal.
Caption: Heavy gauge aluminum moves into a horizontal heat treating furnace at the Davenport, Iowa Works of Alcoa. The furnace accommodates metal in widths up at 150 inches and lengths of 100 feet in gauges from .250 to six inches.