Method and apparatus for compacting granular moulding materials

Details Method and apparatus for compacting granular moulding materials Method and apparatus for compacting granular moulding materials

1983-09-27

1986-01-21

Lin, Kuang Y.

Metal founding

Process

Shaping a forming surface

164169, B22C 1500

Patent

active

045652333

ABSTRACT:
Loosely poured granular material is compacted by a burst of air under pressure which is built up in a space Q1 and is abruptly released through the outlet end of a passageway Q3 which opens toward the material surface. While the pressure in Q1 is being built up and until released, it is restrained by a sealing member which concurrently covers the outlet side of Q1, the input end of passage Q3 and an accelerating space Q2. The sealing member is held in place by a counterpressure in a space Q4 acting on a larger surface area than Q1. The pressure is suddenly decreased in Q4, abruptly unbalancing the pressures and releasing the pressurized gas from Q1 into Q3 and against the surface.

REFERENCES:
patent: 1533220 (1925-04-01), Campbell
patent: 1594598 (1926-08-01), Campbell
Kay, J. M. An Introduction to Fluid Mechanics and Heat Transfer, University Press, Cambridge, 1957, pp. 219-227.
Mark's Standard Handbook for Mechanical Engineers, McGraw-Hill, 8th Ed., 1978, pp. 4-48-4-50.

Affiliated with

Also associated with

Rating

Method and apparatus for compacting granular moulding materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for compacting granular moulding materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for compacting granular moulding materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2294439