Manufacturing method for glass particulate deposit and burner

A manufacturing method for a glass particulate deposit comprising

• mounting a starting rod and a burner in a reaction vessel;
• mounting a fixing jig on an outer periphery of an outermost pipe of the burner;
• inserting a burner cover from a tip end of the outermost pipe of the burner;
• and
• sandwiching and compressing a part of the fixing jig between the burner cover and the outermost pipe of the burner to fix the burner cover to the burner;
• introducing a glass raw material to the burner;
• subjecting the glass raw material to a flame hydrolysis reaction to generate glass particulates in flame formed by the burner;
• and
• depositing the generated glass particulates on the starting rod to manufacture a glass particulate deposit
• wherein
• an outer diameter of a part of the fixing jig that is not compressed is greater than an inner diameter of a part of the burner cover inserted to the tip end of the outermost pipe of the burner;
• the burner is fixed to the burner cover mainly by outward forces resulting from the compressing;
• and
• the fixing jig has an abutting part formed where the part of the fixing jig that is compressed and the part of the fixing jig that is not compressed meet, the abutting part having an end face where the burner cover is in contact;
• wherein the material of the fixing jig includes at least one of PFA and polyimide to provide compressibility of the fixing jig for the compressing.