Flangesyog cov khoom zoo li disk feem ntau siv hauv cov kav dej.Flangesyog siv nyob rau hauv khub thiab nrog txuamflangesntawm li qub. Hauv pipeline engineering,flangesFeem ntau yog siv rau kev sib txuas ntawm cov kav dej. Nyob rau hauv qhov xav tau los txuas cov raj xa dej, txhua yam kev teeb tsa ntawm lub flange, cov kav dej tsis tshua muaj siab siv tau xaimflange, siv vuam flange ntau tshaj 4 kg ntawm siab. Ntxiv sealing gasket ntawm obflanges, thiab ces zawm nrog bolt.Flangesnrog sib txawv pressures muaj txawv thicknesses thiab siv txawv bolts.

Piv nrog carbon steel, stainless hlau muaj cov yam ntxwv hauv qab no:
1) siab hluav taws xob tsis zoo, kwv yees li 5 npaug ntawm carbon hlau.
2) Loj linear expansion coefficient, 40% loj dua carbon steel, thiab nrog rau qhov kub thiab txias, linear expansion coefficient ntawm tus nqi kuj nce raws li.
3) Tsawg thermal conductivity, txog 1/3 ntawm carbon steel.
Nco tseg:
1. Txhawm rau tiv thaiv corrosion ntawm lub qhov muag vim cua sov ntawm lub flange npog, vuam tam sim no yuav tsum tsis txhob loj heev, li ntawm 20% tsawg tshaj li carbon steel electrode, lub arc yuav tsum tsis txhob ntev dhau lawm, ceev txias ntawm txheej, thiab nqaim weld hlaws yog tsim nyog.
2. cov electrode yuav tsum tau qhuav thaum siv, titanium calcium hom yuav tsum qhuav los ntawm 150 ℃ rau 1 teev, tsawg hom hydrogen yuav tsum tau qhuav los ntawm 200-250 ℃ rau 1 teev (tsis rov ua kom qhuav, txwv tsis pub cov txheej yog yooj yim tawg thiab flake), los tiv thaiv cov electrode txheej nplaum nplaum roj thiab lwm yam av, thiaj li tsis ua kom cov pa roj carbon monoxide ntau dua cov ntsiab lus ntawm seam.

3.flangeyeeb nkab vuam, los ntawm kev rov ua cua sov carbide nag lossis daus, txo corrosion kuj thiab txhua yam khoom.
4. chromeflangefittings tom qab vuam hardening American txheem flange yog loj, yooj yim rau tawg. Yog tias tib hom chromium stainless hlau electrode (G202, G207) vuam, yuav tsum tau nqa tawm saum toj 300 ℃ preheating thiab txog 700 ℃ tom qab vuam qeeb kev kho cua sov. Yog tias qhov vuam tsis tuaj yeem kho tom qab vuam, flanged yeeb nkab electrode (A107, A207) yuav tsum siv.
5.flange, txhawm rau txhim kho corrosion kuj thiab weldability thiab nce qhov tsim nyog ntawm cov khoom ruaj khov Ti, Nb, Mo, thiab lwm yam, weldability zoo dua chrome flange. Thaum siv tib hom chromium flange electrode (G302, G307), nws yuav tsum tau preheated saum 200 ℃ thiab tempered tom qab vuam ntawm txog 800 ℃. Yog tias qhov vuam tsis tuaj yeem kho cua sov, flanged yeeb nkab vuam electrode (A107, A207) yuav tsum tau siv.
6.Flangedyeeb nkab fittings, khawm-weldingflangeelectrode muaj corrosion kuj zoo thiab oxidation kuj, dav siv nyob rau hauv tshuaj, tshuaj chiv, roj av, kev kho mob machinery manufacturing.