公开(公告)号：US20170362113A1

公开(公告)日：2017-12-21

申请号：US15543103

申请日：2015-01-15

Applicant: HERAEUS TENEVO LLC

Inventor： Jong-Won Lee ,  Qiulin Ma ,  Kai Huei Chang

IPC: C03B33/06 ,  C03B33/10

CPC classification number: C03B33/06 ,  C03B33/105 ,  C03B37/01225 ,  C03B37/01228 ,  C03B37/01466 ,  C03B37/01861 ,  Y02P40/57

Abstract: A method of forming a glass preform of predetermined length comprises providing a length of glass material to be separated to form a preform length and a remaining length; forming a notch in the glass material; inducing a tensile stress in excess of the tensile strength of the glass in an area adjacent to the notch; and separating the preform length from the remaining length at the notch.