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- Low-frequency_electric_resistance_weld abstract "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 In 1970, the low frequency process was superseded by a high frequency ERW process which produced a higher quality weld.Over time, the welds of low frequency ERW pipe was found to be susceptible to selective seam corrosion, hook cracks, and inadequate bonding of the seams, so low frequency ERW is no longer used to manufacture pipe. The high frequency process is still being used to manufacture pipe for use in new pipeline construction.The Poplar Pipeline was built in the 1950s using pipe made with low-frequency electric resistance welds as was the Pegasus Pipeline.".
- Low-frequency_electric_resistance_weld wikiPageID "45204493".
- Low-frequency_electric_resistance_weld wikiPageLength "4397".
- Low-frequency_electric_resistance_weld wikiPageOutDegree "10".
- Low-frequency_electric_resistance_weld wikiPageRevisionID "644236030".
- Low-frequency_electric_resistance_weld wikiPageWikiLink 2013_Mayflower_oil_spill.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Category:Pipe_manufacture.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Dilbit.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Diluted_bitumen.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Electric_resistance_welding.
- Low-frequency_electric_resistance_weld wikiPageWikiLink ExxonMobil.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Lake_Conway.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Mayflower,_Arkansas.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Pipeline_transport.
- Low-frequency_electric_resistance_weld wikiPageWikiLink Yellowstone_River.
- Low-frequency_electric_resistance_weld wikiPageWikiLinkText "Low-frequency electric resistance weld".
- Low-frequency_electric_resistance_weld hasPhotoCollection Low-frequency_electric_resistance_weld.
- Low-frequency_electric_resistance_weld wikiPageUsesTemplate Template:Reflist.
- Low-frequency_electric_resistance_weld subject Category:Pipe_manufacture.
- Low-frequency_electric_resistance_weld hypernym Resistance.
- Low-frequency_electric_resistance_weld type MilitaryConflict.
- Low-frequency_electric_resistance_weld comment "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.".
- Low-frequency_electric_resistance_weld label "Low-frequency electric resistance weld".
- Low-frequency_electric_resistance_weld sameAs m.012pw0k8.
- Low-frequency_electric_resistance_weld wasDerivedFrom Low-frequency_electric_resistance_weld?oldid=644236030.
- Low-frequency_electric_resistance_weld isPrimaryTopicOf Low-frequency_electric_resistance_weld.