Low-frequency electric resistance weld
id:
low-frequency-electric-resistance-weld-194-9108499
title:
Low-frequency electric resistance weld
text:
Low-frequency electric resistance weld, LF-ERW is Electric resistance welded (ERW) pipe manufactured by cold-forming a sheet of steel into a cylindrical shape. Current is then passed between the two edges of the steel to heat the steel to a point at which the edges are forced together to form a bond without the use of welding filler material. Initially this manufacturing process used low frequency A.C. current to heat the edges. This low frequency process was used from the 1920s until 1970. In 1
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Low-frequency_electric_resistance_weld
date created:
date modified:
2022-10-13T20:21:43Z
main entity:
{"identifier":"Q25220402","url":"https://www.wikidata.org/entity/Q25220402"}
image:
fields total:
13
integrity:
13