Method for producing glass particulate deposit and method for producing glass preform
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United States of America Patent
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Jun 13, 2017
Grant Date -
May 14, 2015
app pub date -
Nov 10, 2014
filing date -
Nov 13, 2013
priority date (Note) -
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Abstract
A production method for a glass particulate deposit which includes a deposition step in which, at least two liquid source material ejecting ports 31a for a glass source material 23 jetting out from a burner 22 are provided per one burner 22, the area of at least one liquid source material port 31a is 2.25×10−4 or less of the area of the flame forming part of the burner 22, the glass source material 23 is, in the form of a liquid thereof, supplied to each liquid material source port 31a, jetting gas ports 31b are arranged in such a manner that the inner periphery of the jetting gas port is positioned outside by 1.0 mm or less from the outer periphery of each liquid source material port 31a, and a gas is jetted out from each gas jetting port 31b.
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