Lost foam casting pattern

Details Lost foam casting pattern Lost foam casting pattern

2005-12-06

2005-12-06

Tran, Len (Department: 1725)

Metal founding

Means to shape a forming surface

Pattern

C164S034000, C164S244000

Reexamination Certificate

active

06971437

ABSTRACT:
Pattern for the lost foam casting process including a pouring-basin-foming portion, a sprue-forming portion, a runner-forming portion, a gate-forming portion, and a riser-forming portion. The sprue-forming portion forms an inverted conical sprue having a blade-lightener therein for quickly filling, and substantially simultaneously firing, the gates. A glue joint may be used between the pouring- basin-forming portion and the sprue-forming portion to increase the residence time of the melt in the pouring basin. The runners formed by the pattern each have an inline riser through which melt flows during pouring and in which melt is stored to feed the casting with melt during shrinkage of the casting A sand dam surrounds the mouth of each gate and traps particulates from a liquid styrene layer that precedes the melt front in the riser.

REFERENCES:
patent: 3835913 (1974-09-01), Vandemark et al.
patent: 4300617 (1981-11-01), Bauer
patent: 6880618 (2005-04-01), Goettsch et al.

Affiliated with

Also associated with

Rating

Lost foam casting pattern does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lost foam casting pattern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lost foam casting pattern will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3480841