Lub flange yog ib qho disc zoo li cov khoom uas feem ntau muaj nyob rau hauv pipeline engineering.Covflangesyog siv ua khub thiab ua ke nrog cov flanges sib txuam ntawm lub valve.Hauv pipeline engineering, flanges feem ntau yog siv rau kev sib txuas ntawm cov kav dej.Hauv cov kav dej uas yuav tsum tau txuas nrog, ntau yam khoom siv muaj lub phaj flange.
Kev sib piv ntawmstainless hlau flangesthiabcarbon steel flanges:
1. Cov thermal conductivity tsawg, li ntawm ib feem peb ntawm cov pa roj carbon steel.Txhawm rau tiv thaiv qhov muag ntawm qhov muag corrosion tshwm sim los ntawm cov cua sov ntawm lub flange npog, qhov vuam tam sim no yuav tsum tsis txhob loj dhau, uas yog li ntawm 20% tsawg dua carbon steel vuam rods.Lub arc yuav tsum tsis txhob ntev heev, thiab lub interlayer txias yuav tsum ceev ceev.Nws yog ib advisable mus siv ib tug nqaim welding pass.
2. Tus nqi electronegative yog siab, kwv yees li 5 npaug ntawm carbon hlau.
3. Lub coefficient ntawm linear expansion yog loj, 40% siab tshaj cov carbon steel, thiab raws li qhov kub thiab txias, tus nqi ntawm coefficient ntawm linear expansion kuj nce raws li.
Cov pa roj carbon steel yog cov hlau carbon hlau nrog cov ntsiab lus carbon xws li 0.0218% txog 2.11%.Kuj tseem hu ua carbon steel.Feem ntau, nws kuj muaj me me ntawm silicon, manganese, sulfur, thiab phosphorus.Feem ntau, qhov siab dua cov ntsiab lus ntawm cov pa roj carbon steel, qhov hardness thiab lub zog ntau dua, tab sis cov yas qis dua.
Dab tsi yog qhov sib txawv ntawm cov hlau tsis tshua muaj carbon steel, nruab nrab carbon steel, thiab siab carbon steel?
1. Cov pa roj carbon tsawg yog hom carbon hlau uas muaj cov ntsiab lus ntawm cov pa roj carbon tsawg dua 0.25%, suav nrog feem ntau cov pa roj carbon monoxide zoo tib yam thiab qee qhov zoo carbon steel qauv, feem ntau yog siv rau engineering structural Cheebtsam uas tsis tas yuav tsum tau cua sov. kev kho mob.Qee tus kuj raug carburization lossis kev kho cua sov.
2. Cov pa roj carbon nruab nrab muaj qhov kub ua haujlwm zoo thiab txiav cov khoom, tab sis cov khoom siv vuam tsis zoo.Nws lub zog thiab hardness yog siab dua li cov hlau tsis muaj cov pa roj carbon tsawg, thaum nws cov plasticity thiab toughness yog qis dua cov hlau tsis muaj carbon.Txias dov thiab lwm yam txheej txheem tuaj yeem siv ncaj qha rau kev ua haujlwm txias yam tsis muaj kev kho cua sov, lossis kev siv tshuab lossis forging tuaj yeem nqa tawm tom qab kev kho cua sov.Lub hardened nruab nrab carbon steel muaj zoo heev zoo txhua yam khoom.Qhov siab tshaj plaws hardness ua tiav yog kwv yees li HRC55 (HB538), σ B yog 600-1100MPa.Yog li ntawd, nruab nrab carbon steel yog dav siv nyob rau hauv ntau yam kev siv nrog nruab nrab lub zog theem.Nws tsis yog tsuas yog siv los ua cov khoom siv hauv tsev, tab sis kuj rau kev tsim ntau yam tshuab.
3. High carbon steel feem ntau hu ua Tool steel, thiab nws cov ntsiab lus carbon yog 0.60% ~ 1.70%.Nws tuaj yeem quenched thiab tempered, thiab nws cov vuam ua haujlwm tsis zoo.Hammers, crowbars, thiab lwm yam yog ua los ntawm steel nrog cov ntsiab lus carbon ntawm 0.75%.Txiav cov cuab yeej xws li xyaum, kais, thiab reamers muaj cov ntsiab lus carbon ntawm 0.90%
Post lub sij hawm: Jun-08-2023
