Bonding casting cores

Details Bonding casting cores Bonding casting cores

1991-08-12

1993-06-29

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

34 4, 1562722, B22C 910, B22C 912

Patent

active

052225445

ABSTRACT:
Sand cores are bonded to form an assembly, using paste usually containing clay or silicates. Bonding is carried out by (a) coating at least one interfacing surface of intermating core parts with paste in a thickness of about 0.005-0.20 inches; (b) mating the coated interfacing surface of one core part to the other core part to form an assembly; and (c) subjecting the paste in the assembly to microwave energy at an energy level of about 5-7 kilowatts to effectively dry the paste in a manner proceeding first from the interior of the paste body to its outer peripheral extremities. The subjection to microwave energy draws the core parts closer together by shrinking the paste coating and by causing the paste to boil and drive the paste into pores and/or voids of the intermating core surfaces; such subjection is preferably carried out for a time period of 10-30 seconds.

REFERENCES:
patent: 3456355 (1969-07-01), Cumming et al.
patent: 3942260 (1976-03-01), Nishitani
patent: 4180918 (1980-01-01), Ostrowski
patent: 4331197 (1982-05-01), Cole
patent: 4655276 (1987-04-01), Bird et al.
patent: 4728531 (1988-03-01), Matz et al.
patent: 4763720 (1988-08-01), Sakamoto et al.
patent: 4954681 (1990-09-01), Ishikawa et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1748799