Method and apparatus for producing thick-walled molded parts

Details Method and apparatus for producing thick-walled molded parts Method and apparatus for producing thick-walled molded parts

B - Operations, Transporting

29

C

B29C 45/56 (2006.01)

Patent

CA 2424422

The invention relates to a method and a device for producing thick-walled plastic parts, especially blanks for optical lenses. The invention consists of a two-step method in order to produce thick-walled lenses with high optical qualities and homogeneous material properties. The inventive method comprises the following steps; in the first step, a thin lens is produced by injection moulding; in the second step, said lens is enlarged until the final maximum thickness thereof, i.e. blown up , by introducing plastic material.

L'invention concerne un procédé et un dispositif pour la production de pièces en plastique à paroi épaisse, notamment d'ébauches pour des lentilles optiques. L'invention vise à produire des lentilles à paroi épaisse présentant une grande qualité optique et des caractéristiques de matériau homogènes. A cet effet, l'invention propose une procédure de production en deux étapes : une lentille mince est produite par moulage par injection lors d'une première étape ; lors de la deuxième étape de production, elle est grossie à son épaisseur définitive, c'est-à-dire <= gonflée >=, par amenée de matière plastique.

Affiliated with

Also associated with

Rating

Method and apparatus for producing thick-walled molded parts 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 producing thick-walled molded parts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing thick-walled molded parts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1389312