Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to JP9481279ApriorityCriticalpatent/JPS5619985A/en
Publication of JPS5619985ApublicationCriticalpatent/JPS5619985A/en
Butt Welding And Welding Of Specific Article
(AREA)
Abstract
PURPOSE: To prevent the degradation in the toughness and fatigue characteristics at the field welding and prevent crazing in a cold district by welding a low sulfur and low hydrogen steel of a high grade only to the weld joining portions of rails.
CONSTITUTION: A high grade steel or alloy steel 1b applied with desulfurization or dehydrogenation is welded in a shop, in such a manner as not to permit coarsening of metal structure, to both ends of the steel portions 1a of the same low hydrogen and low sulfur as those of conventional rails, on the inner side of the weld line 2 of rails 1. On a laying site in a cold district, the high grade steel or alloy ateel portions 1b of the rails 1 are welded to each other, thus the rails are connected without any adverse influence as in the prior art.
Metal structure joint for assembling members running in two directions - consists of four vertical gussets welded into cross with one horizontal gusset
Welding of Circumferential Joints at Low Ambient Temperature in Long-Distance Pipelines(Trans-Siberian, Trans-Alaskan, Trans-Canadian) Fabricated of High-Strength Steel