Method for injection molding and removing binder from large cros

Plastic and nonmetallic article shaping or treating: processes – Disparate treatment of article subsequent to working,... – Effecting temperature change

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

264 63, 2643282, 264344, B29C 4500

Patent

active

047042427

ABSTRACT:
A method for fabricating injection molded ceramic shapes suitable for densification by sintering or hot isostatic pressing has been developed. The method is applicable to ceramic articles of large, complex cross sections, greater than one centimeter, which are generally prone to external cracking during binder removal. The method requires use of a controlled starting powder, and a novel binder removal process to obtain an externally crack-free article.

REFERENCES:
patent: 2939199 (1960-06-01), Strivens
patent: 3234308 (1966-02-01), Herrmann
patent: 3238048 (1966-01-01), Somers
patent: 3882210 (1975-05-01), Crossley et al.
patent: 4144207 (1979-03-01), Ohnsorg
patent: 4248813 (1981-02-01), Hattori et al.
patent: 4283360 (1981-08-01), Henmi et al.
patent: 4460527 (1984-07-01), Kato
patent: 4550004 (1985-10-01), Mizuno
Whalen et al, Progress on Injection-Molded Reaction-Bonded SiC, Ceramics for High Performance Applications-II, 5th Army Mat'l Tech. Conf., Mar. 1977, pp. 179-189.
Mangels, Development of Injection Molded Reaction Bonded Si.sub.3 N.sub.4, Ceramics for High Performance Applications-II, 5th Army Mat'l Tech. Conf., Mar. 1977, pp. 113-130.
Schnittgrund, Injection Molded Ceramic Rocket Engine Components, SAMPE, Quarterly, Jul. 1981, pp. 8-13.
Quackenbush et al, Fabrication of Sinterable Silicon Nitride by Injection Molding, 19th Summary Report--Auto Tech. Devel. Contractors' Coor. Meeting, Oct. 1981, pp. 424-437.
Bandyopadhyay et al, Injection Molded Silicon Nitride for Engine Applications: Fab. and Prop., 21st Auto Tech., Devel. Contractors Coor. Meeting, Mar. 1984, pp. 315-320.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for injection molding and removing binder from large cros 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 for injection molding and removing binder from large cros, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for injection molding and removing binder from large cros will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1673347

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.