GB/T9948Chitoliro chosasunthika chachitsulo chophwanyira mafuta ndi chitoliro chopanda msoko choyenera machubu ang'anjo, osinthanitsa kutentha ndi mapaipi mumafuta opangira mafuta.Chitsulo chapamwamba kwambiri cha carbon structural steel, alloy structural chitsulo ndi zitsulo zosapanga dzimbiri zosagwira kutentha kwapaipi zomwe zimagwiritsidwa ntchito popanga mapaipi otenthetsera mpweya wothamanga kwambiri komanso pamwamba.Mapaipi a boiler awa amagwira ntchito pansi pa kutentha kwakukulu ndi kupanikizika, ndipo mapaipi amawonekera ku utsi wotentha kwambiri.Oxidation ndi dzimbiri zidzachitikanso pansi pa mphamvu ya mpweya ndi nthunzi yamadzi.Chifukwa chake, mapaipi achitsulo amafunikira kukhala ndi mphamvu zokhalitsa, kukana kwa okosijeni wambiri, komanso kukhazikika kwadongosolo.Kuphatikiza pakuwonetsetsa kupangidwa kwamankhwala ndi makina amakina, mapaipi opopera opopera kwambiri amayeneranso Kuyesa mayeso a hydraulic m'modzi ndi m'modzi, kuphatikiza kuyesa kukulitsa ndi kuwongolera.Mapaipi osasunthika othamanga kwambiri amaperekedwa m'malo otenthedwa.
Kupanga mapaipi osweka mafuta ndi njira zopangira:

① Nthawi zambiri, kutentha kwa ntchito zamapaipi opanda zitsulo kumakhala pansi pa 450 ° C.Mapaipi apakhomo amapangidwa makamaka ndi No. 10, No. 20,12CrMo, 15CrMo, 12CrlMo, 12CrlMoV, 12Cr5MoI, 12Cr9MoI, mapaipi otentha otentha kapena mapaipi ozizira.

② GB9948 mipope yachitsulo yopanda msoko nthawi zambiri imakhala ndi kutentha kwambiri komanso kupanikizika kwambiri ikagwiritsidwa ntchito.Mipopeyo idzakhala oxidize ndi corrode pansi pa zochita za kutentha flue gasi ndi nthunzi madzi.Mapaipi achitsulo amafunikira kuti akhale ndi mphamvu zokhalitsa, kukana kwambiri makutidwe ndi okosijeni ndi dzimbiri, komanso kukhazikika kwadongosolo.

gwiritsani ntchito:

① Nthawi zambiri, mapaipi achitsulo osasunthika amagwiritsidwa ntchito kwambiri popanga mapaipi amadzi ampanda, mapaipi amadzi otentha, mapaipi otentha kwambiri, mapaipi otenthetsera kwambiri amaboiler apamtunda, mapaipi akulu ndi ang'onoang'ono a utsi ndi mapaipi a njerwa, ndi zina zambiri.

②GB9948 chitoliro chachitsulo chosasunthika chimagwiritsidwa ntchito makamaka popanga machubu otenthetsera, machubu otenthetsera, machubu owongolera mpweya, mapaipi akuluakulu a nthunzi, ndi zina zambiri.

Mapaipi achitsulo a GB9948 osasunthika amagawidwa m'mapaipi otenthetsera wamba ndi mapaipi otenthetsera kwambiri malinga ndi kutentha kwawo kwakukulu.Kaya machubu a boiler kapena machubu otenthetsera kwambiri, amatha kugawidwa m'mapaipi osiyanasiyana achitsulo malinga ndi momwe amagwiritsidwira ntchito mosiyanasiyana.
GB/T9948 opanda zitsulo chitoliro, awiri akunja 10 ~ 426mm, khoma makulidwe 1.5 ~ 26mm.Kuzungulira kwakunja ndi makulidwe a khoma la machubu otentha kwambiri, machubu akulu a utsi, machubu ang'onoang'ono a utsi ndi machubu a njerwa omwe amagwiritsidwa ntchito m'ma boiler a locomotive amafotokozedwa mwanjira ina.

Mawonekedwe abwino: Palibe ming'alu, mapindikidwe, mipukutu, nkhanambo, delamination ndi mizere ya tsitsi zomwe zimaloledwa mkati ndi kunja kwa mapaipi achitsulo.Zolakwika izi ziyenera kuchotsedwa kwathunthu.Kuzama koyeretsa sikuyenera kupitirira kupatukana koyipa kwa makulidwe a khoma, ndipo makulidwe enieni a khoma pamalo oyeretsera sikuyenera kukhala osachepera makulidwe ovomerezeka a khoma.