Method and apparatus for monitoring resin crystallization and sh

Details Method and apparatus for monitoring resin crystallization and sh Method and apparatus for monitoring resin crystallization and sh

1994-06-14

1996-05-21

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250573, 356239, G01N 2920, B29C 4576

Patent

active

055192114

ABSTRACT:
A method and apparatus for monitoring the crystallinity and shrinkage of a olymeric resin during molding in which light is introduced into the mold cavity, from an optical fiber through a light permeable window, transmitted through the resin in the mold, reflected from the opposite side of the mold, collected again by the optical fiber sensor, and the attenuation of the light is analyzed to detect mold filling, the onset of polymer crystallization, and separation of the polymeric material from the mold wall due to shrinkage, which separation also produces the geometry of an interferometer which can be used to detect shrinkage and to measure the rate of shrinkage by counting the minima of interference fringes.

REFERENCES:
patent: 4529306 (1985-07-01), Kilham et al.
patent: 4651011 (1987-03-01), Ors et al.
patent: 4672218 (1987-06-01), Chrisman et al.
patent: 4827121 (1989-05-01), Vidrine, Jr. et al.
patent: 4904080 (1990-02-01), Afromowitz
patent: 4918520 (1990-04-01), Katsuoka et al.
patent: 5009102 (1991-04-01), Afromowitz
patent: 5015843 (1991-05-01), Seitz et al.
patent: 5032734 (1991-07-01), Orazio, Jr. et al.
patent: 5188845 (1993-02-01), Payne
patent: 5238381 (1993-08-01), Rankin, II et al.
patent: 5374821 (1994-12-01), Muhs et al.
patent: 5384079 (1995-01-01), Bur et al.

Affiliated with

Also associated with

Rating

Method and apparatus for monitoring resin crystallization and sh 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 monitoring resin crystallization and sh, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for monitoring resin crystallization and sh will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2039600