Method of making a container for electrowinning cell

Details Method of making a container for electrowinning cell Method of making a container for electrowinning cell

1997-04-24

1999-10-26

Ortiz, Angela

Plastic and nonmetallic article shaping or treating: processes

Treatment of material by vibrating, jarring, or agitating...

By reciprocating or vibrating mold

264128, 264255, B28B 1087, B29C 6902, B29C 7054

Patent

active

059722614

ABSTRACT:
A method for making a container for an electrowinning cell where the first step 10 provides a mold plug 11 and woven glass rovings 12 are applied in the second step shown at 13. Vinylester resin is applied to the glass rovings at 14 to a thickness of about 4 mm. The liner shown at 14 is 97% vinylester resin. The liner is then allowed partially to harden. The liner 15 is then completely removed from the mold plug and then placed on a slightly smaller support 16 which forms the inner portion of a mold having its walls built up around the support 16 with the liner 15 in place as shown at 17. The mold is supported on springs and a vibrator 18 is employed to vibrate the mold as the outer supporting layer is being poured. Four separate pours 19, 20, 21 and 22 are employed. Each pour has progressively less resin. Pour 19 comprises 12% resin, 0.5% glass, 30% fine and coarse river sand and 57.5% gravel mix. Pour 20 comprises 11% resin. 0.5% glass, 30% fine and coarse river sand and 58.5% gravel mix. Pour 21 comprises 10% resin, 0.5% glass, 30% fine and coarse river sand and 59.5% gravel mix. Pour 22 comprises 9% resin, 0.5% glass, 30% fine and coarse river sand and 60.5% gravel mix.

REFERENCES:
patent: 3482007 (1969-12-01), Routh
patent: 3585094 (1971-06-01), Ruggles
patent: 4621010 (1986-11-01), Wadsworth
patent: 5037520 (1991-08-01), Harry et al.
patent: 5650104 (1997-07-01), Ibar

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