The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Oct. 29, 2014
Applicant:
Valmet Aktiebolag, Sundsvall, SE;
Inventors:
Assignee:
VALMET AKTIEBOLAG, Sundsvall, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/02 (2006.01); B23K 9/035 (2006.01); B23K 9/16 (2006.01); D21F 5/02 (2006.01); B23K 33/00 (2006.01); B23K 9/18 (2006.01); B23K 9/007 (2006.01); B23K 103/04 (2006.01);
U.S. Cl.
CPC ...
B23K 9/0213 (2013.01); B23K 9/007 (2013.01); B23K 9/035 (2013.01); B23K 9/16 (2013.01); B23K 9/18 (2013.01); B23K 33/006 (2013.01); D21F 5/021 (2013.01); B23K 2103/04 (2018.08);
Abstract
The invention relates to a method of making a steel Yankee cylinderby welding a cylindrical shellto two end wallssuch that the cylindrical shelland the end wallstogether form the Yankee cylinder. The welding operation is carried out exclusively from the outside of the Yankee cylinderand in the welding operation is carried out as a butt welding operation in which a backing materialis used on the inside of the Yankee cylindersuch that, between each end walland the cylindrical shell, a single weld beadis formed which extends all the way between the opposing surfacesand completely fuses the opposing surfacesof each end walland the cylindrical shellrespectively.