Abstract: A known method for producing an object having a flanged tubular portion at the outer periphery, comprises supplying a continuously extended, cylindrical body made of the flange material to a welding zone at the tubular portion of the object and welding the flange material to the welding zone by heating and winding the cylindrical body around the object.
Type:
Grant
Filed:
February 25, 1998
Date of Patent:
April 3, 2001
Assignee:
Heraeus Quarzglas GmbH & Co. KG
Inventors:
Toshikatsu Matsuya, Yoshiaki Ise, Shoji Takahashi