Method of predicting insufficient charging of green sand in mold

Details Method of predicting insufficient charging of green sand in mold Method of predicting insufficient charging of green sand in mold

1998-01-14

2000-02-08

Batten, Jr., J. Reed

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164 41, B22C 902

Patent

active

06021841&

ABSTRACT:
The method includes the steps of (a) analyzing the porosity of the green sand, (b) analyzing the contact force acting between sand particles of the green sand, (c) analyzing the fluid force of air existing around the sand particles, (d) calculating the acceleration of the sand particles from the force acting on the sand particles, the force being comprised of the contact force, the fluid force, and the gravity of the particles, (e) analyzing equations of motion to obtain the velocity and position of the sand particles after a minute period of time, from the calculated acceleration, and (f) repeating the steps (a), (b), (c), (d), and (e) until the sand particles stop moving.

REFERENCES:
patent: 3537295 (1970-11-01), Heimgartner
patent: 5589650 (1996-12-01), Flemming et al.
patent: 5609198 (1997-03-01), Kruse et al.

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