A preform and a mold stack for producing the preform

Details A preform and a mold stack for producing the preform A preform and a mold stack for producing the preform

B - Operations, Transporting

29

B

B29B 11/14 (2006.01) B29B 11/08 (2006.01) B29C 45/26 (2006.01)

Patent

CA 2716258

Disclosed herein are a preform (500) and a mold stack for producing the preform (500). The preform (500) is suitable for blow-mold-ing into a final-shaped container. The preform (500) comprises a neck portion (502); a gate por-tion (506); and a body portion (504) extending be-tween said neck portion (502) and said gate portion (506); the neck portion (502) including a support ledge (512), the support ledge (512) being associat-ed with a metal contacting surface (520) and a weight, and wherein a ratio of the metal contacting surface (520) to the weight modulated for a base line support ledge thickness curve is selected in a range of between 0.1 and 1000.

L'invention concerne une ébauche (500) et un empilement de moules pour produire l'ébauche (500). L'ébauche (500) peut être moulée-soufflée en un récipient de forme finale. L'ébauche (500) comprend une partie de col (502), une partie de passage (506) et une partie de corps (504) qui s'étend entre ladite partie de col (502) et ladite partie de passage (506); la partie de col (502) comprenant un bord de support (512), le bord de support (512) étant associé à une surface métallique de contact (520) et à un poids, le rapport entre la surface métallique de contact (520) et le poids, modulé de manière à obtenir une courbe de base d'épaisseur du bord de support, étant sélectionné dans la plage comprise entre 0,1 et 1 000.

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