Professional Cable Tray Manufacturer

Shandong Hongfeng Electric Group Co., Ltd.

The products can be widely used in construction, energy, power, plant.

Bridge welding specification requirements are introduced, what are the standards for outdoor bridge

Release time:

2023-12-04

　　First,thebridgeweldingspecificationrequirementsonthebridgeweldingspecificationrequirements,mainlyincludingthefollowingaspects:thechoiceofweldingmaterialsandqualityrequirements,thechoiceandimplementationofweldingprocess,weldingdefectsinthedetectionandevaluation,theappearanceofweldedjointsqualityanddimensionalaccuracy,thestrengthoftheweldedjointsandcorrosionresistanceandotheraspects.Itisnecessarytoformulateandimplementthecorrespondingnormsandstandardsaccordingtothespecificconditionsandrequirements.Appropriateweldingmaterialscanbeselectedaccordingtothematerialofthebridge,theuseoftheenvironmentandweldingrequirementsandotherfactors,commonlyusedarcwelding,gasshieldedweldingandlaserweldingtechnology.Atthesametime,itisalsonecessarytoconsiderthecontrolofweldingprocessparametersandqualitytestingandotheraspects.Forthedetectionandevaluationofbridgeweldingdefects,non-destructivetestingtechniques,suchasX-raytesting,ultrasonictesting,eddycurrenttestingandothermethods,cangenerallybeusedtodetectwhethertherearecracks,poresandotherdefectsintheweldedparts,andevaluatethem.Accordingtothematerialsused,processanddesignrequirementsaredifferent,theappearanceofthebridgeweldedjointsqualityanddimensionalaccuracyrequirementswillbedifferent,needtobeanalyzedonacase-by-casebasis.Second,whataretheoutdoorbridgestandardsoutdoorbridgecancarrylargerpowerlinesandcommunicationlines,corrosion-resistant,shockproof,wind-resistantandothercharacteristics.Atthesametime,itcanalsoadapttoavarietyofenvironments,suchasrivers,highways,railroads,etc.,withtheadvantageofflexibility.Thespecificationofoutdoorbridgereflectsthesizeofthebridge,thespecificationofthebridgeisrelatedtothenumberofcablesandcablestobelaid,andthefillingratespecifiedinthebridgestandard,andalsodeterminesthethicknessofthebridge'splate.Galvanizedplatebridgesurfacecannothavewhiterustorotherdirt,foreignstandardsonthespecificappearanceofthedefectsdescribedisnotveryclear,thespecificprojectifthereisarequirementfortheappearanceofthecontractshouldbeclearlysetout.Aftersomanyyearsofdevelopmentinthebridgeindustry,peoplehavedevelopedabridgedemandspecifications,theNationalElectricalCommitteehasevendefinedanumberofversionsofthebridgeindustrystandards.Ifthebridgeplateisgalvanized,thethicknessofthezinclayeronthesurfaceoftheplatecannotexceedthethicknessspecifiedinthebridgestandard,therecannotbevariousscuffsandscratches,andthesurfacecannothavevariousstains.

Keywords：

What are the national standard specifications for cable tray, such as galvanization, spraying and thickness

What are the common bridge industry standards, about bridge materials and thicknesses

What are the national standard specifications for cable tray, such as galvanization, spraying and thickness

What are the common bridge industry standards, about bridge materials and thicknesses