Agitating – Rubber or heavy plastic working – With specified feed means
Patent
1975-01-14
1978-11-21
Hornsby, Harvey C.
Agitating
Rubber or heavy plastic working
With specified feed means
366 99, 366168, 366330, B01F 704, B01F 1502
Patent
active
041263987
ABSTRACT:
A system for the preparation of no-bake foundry sands for preparation of metal casting molds. A settable binder is introduced into the sand and thoroughly and uniformly mixed therewith and then discharged around a pattern. The resulting mold then sets up and hardens rapidly without baking. After use to produce a metal casting, the mold is broken up and the sand recycled for further use. The present system is characterized by ease of feed rate variation, coordinated feeding of components, short residence time, efficient mixing and reduced clean-up problems. It comprises a horizontal axis paddle-type rotary mixer, coordinated means for feeding the mixture components to the mixer housing and discharge of the mixture upon demand including at least one gas assisted injection port or nozzle for the binder system and control means for regulating the rates of flow. The apparatus is desirably movably supported to facilitate distribution of the discharge.
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Emery Robert D.
Moxness Sherman U.
Phillips David L.
Bepex Corporation
Hornsby Harvey C.
Simone Timothy F.
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