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:
Apr. 02, 1991
Filed:
Dec. 22, 1989
Kawasaki Steel Corporation, Kobe, JP;
Abstract
A method of submerged arc welding of thick steel plates with a large heat input and flux for submerged arc welding which comprises: forming a groove having a multi-angle shape which has at least two different angular inclination when a single side submerged arc welding for perfect penetration is conducted under a condition of an welding heat input of 100 to 1000 kJ/cm; using submerged arc welding flux SiO.sub.2 : 5 to 28% by weight, MgO: 15 to 35% by weight, CaO: 5 to 15% by weight, CaF.sub.2 : 2 to 20% by weight, Al.sub.2 O.sub.3 : 5 to 15% by weight, and TiO.sub.2 : 2 to 10% by weight as the main components, and containing iron powder by 30% by weight or less and either or both of Si and Mn in the metallic form by 10% by weight, the submerged arc welding flux having a particle size distribution arranged such that the proportion of the particle size distribution arranged such that the proportion of the particle which have a size finer than 36 mesh is 20% by weight or less and the proportion of the particles which have a size 14 mesh or finer but 36 mesh or rougher is 60% by weight or more; and conducting the welding.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile