Cov yam ntxwv ntawm Carbon Steel Tee Pipe Fittings thiab ceev faj rau qhib Stainless Hlau Tee Yeeb Nkab Fittings:
I. Yam ntxwv ntawm Carbon Steel Tee Pipe Fittings:
Cov pa roj carbon steel tee yeeb nkab fittings feem ntau yog siv rau kev hloov kho valve thiab tso dej. Concentric tees pab txhawb cov kua dej nrog kev cuam tshuam tsawg heev rau cov qauv ntws vim muaj kev hloov hauv txoj kab uas hla. Yog li ntawd, seamless tee yeeb nkab fittings siv concentric kav ntawm txawv diameters rau roj thiab ntsug kua ntws pipelines. Raws li ib sab ntawm cov kab sib txawv ntawm cov kav dej yog tiaj tus, nws pab hauv kev tawm ntawm cov kua thiab ua kom yooj yim pib thiab txij nkawm, ua rau lawv tsim nyog rau cov kav dej nrog cov kab sib txawv hauv kab rov tav.
Cov kav dej sib txawv, tseem hu ua txo cov tees, muaj cov kab sib txawv ntawm ob qhov kawg thiab siv los txuas cov kav dej lossis flanges ntawm cov kab sib txawv. Hauv concentric thiab eccentric yeeb nkab fittings, qhov nruab nrab ntawm lub voj voog ntawm ob qho kawg yog nyob rau tib lub axis. Thaum cov yeeb nkab txoj kab uas hla hloov, yog hais tias lub orientation ntawm cov yeeb nkab yog xam los ntawm cov axis, cov yeeb nkab txoj kev taw qhia lub kaum sab xis tseem tsis hloov. Qhov no feem ntau yog siv los hloov txoj kab uas hla ntawm cov pa roj los yog cov kav dej ntsug. Eccentric yeeb nkab fittings nrog txawv diameters txiav lub circumferential circumference thiab feem ntau yog siv nyob rau hauv kab rov tav pipelines.
Welded tee yeeb nkab fittings yog tsim los ntawm kub nias los yog forging steel, thiab lawv ncaj qha welded rau cov yeeb nkab steel. Cov qauv tsim tseem ceeb rau welded tee yeeb nkab fittings suav nrog GB / T 12459, GB / T 13401, ASME B 16.9, SH 3408, SH 3409, HG / T 21635, HG / T 21631, thiab SY / T 0510. tuaj nyob rau hauv ntau hom, nrog rau sib npaug tee yeeb nkab fittings thiab txo tee yeeb nkab fittings, thiab lawv yog tsim los ntawm carbon steel, alloy steel, thiab stainless hlau.
Kev tiv thaiv corrosion ntawm stainless hlau tee yeeb nkab fittings nyob ntawm cov ntsiab lus alloying hauv cov hlau, nrog chromium yog ib qho tseem ceeb. Thaum cov ntsiab lus chromium nyob rau hauv cov hlau mus txog ib ncig ntawm 1.2%, nws reacts nrog oxygen nyob rau hauv corrosive media, tsim ib tug heev nyias oxide zaj duab xis (passivation zaj duab xis) nyob rau hauv lub steel nto. Cov yeeb yaj kiab no tiv thaiv corrosion ntxiv ntawm cov hlau. Cov ntsiab lus alloying feem ntau siv ntxiv rau chromium yog npib tsib xee, molybdenum, titanium, niobium, tooj liab, thiab nitrogen, ua tau raws li cov qauv thiab kev ua haujlwm ntawm concentric thiab eccentric yeeb nkab fittings rau ntau yam kev siv.
Xaiv cov txheej txheem tsim khoom tsim nyog rau concentric thiab eccentric reducers yog qhov tseem ceeb los xyuas kom meej qhov ua tau zoo thiab kev ua tau zoo thaum tsim khoom thiab ua haujlwm.
II. Kev ceev faj rau qhib Stainless Hlau Tee Yeeb Nkab Fittings:
Deformation nyob rau hauv stainless hlau tee yeeb nkab fittings thaum extrusion yog ib daim ntawv ntawm stretching deformation. Thaum ε (strain) loj, nws tuaj yeem ua rau caj dab ntawm ntug ntawm lub qhov thiab tom qab rupture. Yog li ntawd, kev zam ntawm ntug kev tawg yog qhov kev txhawj xeeb tseem ceeb hauv kev tsim extrusion. Qhov siab tshaj plaws ntawm deformation nyob rau hauv ib qho extrusion tsuas yog txwv los ntawm elongation ntawm stainless hlau cov ntaub ntawv.
Kev ceev faj yuav tsum tau ua thaum qhib stainless hlau tee yeeb nkab fittings suav nrog cov hauv qab no:
1. Lub stainless hlau tee yeeb nkab haum lub pob valve yuav tsum nyob rau hauv txoj hauj lwm kaw, qhov twg lub pob valve nyob rau hauv lub mechanical siab ntawm lub valve qia, thiab lub rooj zaum siab yog nruj.
2. Thaum tig lub handwheel counterclockwise, lub qia ntawm stainless hlau tee yeeb nkab haum lub pob valve txav nyob rau hauv lub opposite kev taw qhia, ua rau lub tiaj tiaj hauv qab ntawm qia nqa lub pob tawm ntawm lub rooj zaum.
3. Lub qia yog txuas ntxiv rub tawm thiab xim nrog cov lus qhia tus pin nyob rau hauv qia lub helical zawj, kom ntseeg tau tias lub pob taub hau tsis twist vim kev sib txhuam.
4. Ua ntej ncav cuag qhov qhib siab, lub qia yog rub mus rau lub kaum sab xis, thiab lub pob mus txog qhov qhib tag nrho.
Cov kev ceev faj no yog qhov tseem ceeb rau kev nyab xeeb thiab ua haujlwm zoo ntawm stainless hlau tee yeeb nkab fittings thaum qhib lawv.
