Mapaipi achitsulo chopanda msoko amagawidwa m'mitundu iwiri: mapaipi achitsulo chopanda msoko omwe amatenthedwa (otulutsidwa) ndi mapaipi achitsulo chopanda msoko omwe amakokedwa ozizira (ozunguliridwa) chifukwa cha njira zawo zopangira zosiyanasiyana.
Chidule cha njira: kugwedezeka kotentha (chitoliro chachitsulo chosasunthika chotulutsidwa): chubu chozungulira chozungulira chogwirira ntchito → kutentha → kuboola → kugwedezeka kopingasa kwa mipukutu itatu, kugwedezeka kosalekeza kapena kutulutsa → kuchotsa chubu → kukula (kapena kuchepetsa) → kuziziritsa → chubu chogwirira ntchito.
Chifukwa cha ntchito zawo zosiyanasiyana, mapaipi achitsulo chosasunthika amagawidwa m'mitundu iyi: GB/T8162 (mapaipi achitsulo chosasunthika chogwiritsidwa ntchito popanga zinthu), chitsulo cha carbon Na. 20 ndi chitsulo cha Na. 45; chitsulo cha alloy Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, ndi zina zotero.
GB/T8163 (mapaipi achitsulo opanda msoko otumizira madzi). Amagwiritsidwa ntchito makamaka potumiza mapaipi amadzimadzi pamakina aukadaulo ndi zida zazikulu. Zipangizo zoyimira (magiredi) ndi 20, Q345, ndi zina zotero.
GB3087 (mapaipi achitsulo chopanda msoko wa ma boilers otsika ndi apakati). Amagwiritsidwa ntchito makamaka pa mapaipi onyamula madzi otsika ndi apakati mu ma boilers amafakitale ndi ma boiler apakhomo. Zipangizo zoyimira ndi chitsulo Nambala 10 ndi Nambala 20.
GB5310 (mapaipi achitsulo opanda msoko a ma boiler opanikizika kwambiri). Amagwiritsidwa ntchito makamaka pa ma header ndi mapaipi onyamula madzi otentha kwambiri komanso opanikizika kwambiri pama boiler m'mafakitale amagetsi ndi mafakitale amagetsi a nyukiliya. Zipangizo zoyimira ndi 20G, 12Cr1MoVG, 15CrMoG, ndi zina zotero.
GB5312 (mapaipi achitsulo chopanda kaboni ndi chitsulo cha kaboni-manganese cha zombo). Imagwiritsidwa ntchito makamaka pa mapaipi opanikizika a Class I ndi II a boilers a zombo ndi ma superheaters. Zipangizo zoyimira ndi 360, 410, 460 chitsulo, ndi zina zotero.
GB1479 (mapaipi achitsulo osapota a zida za feteleza wopanikizika kwambiri). Amagwiritsidwa ntchito makamaka kunyamula mapaipi amadzimadzi otentha kwambiri komanso opanikizika kwambiri pazida za feteleza wa mankhwala. Zipangizo zoyimira ndi 20, 16Mn, 12CrMo, 12Cr2Mo, ndi zina zotero.
GB9948 (mapaipi achitsulo opanda msoko ophwanyira mafuta). Amagwiritsidwa ntchito makamaka mu ma boiler, ma heat exchanger ndi mapaipi otumizira madzi mu ma smelting a mafuta. Zipangizo zake zoyimira ndi 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb ndi zina zotero.
GB3093 (chitoliro chachitsulo chosasunthika cha injini ya dizilo). Chimagwiritsidwa ntchito makamaka pa mapaipi amafuta opanikizika kwambiri a makina ojambulira injini ya dizilo. Chitoliro chachitsulo nthawi zambiri chimakhala chitoliro chozizira, ndipo zinthu zake zoyimira ndi 20A.
GB/T3639 (machubu achitsulo osapindika okokedwa ndi ozizira kapena opindidwa ndi ozizira). Amagwiritsidwa ntchito makamaka pakupanga makina ndi zida zosindikizira kaboni, mapaipi achitsulo omwe amafunikira kulondola kwakukulu komanso kumalizidwa bwino pamwamba. Zida zake zoyimira ndi 20, 45 zitsulo ndi zina zotero.
GB/T3094 (chitoliro chachitsulo chopanda msoko chokokedwa ndi ozizira). Chimagwiritsidwa ntchito kwambiri popanga zigawo ndi zigawo zosiyanasiyana za kapangidwe kake, ndipo zinthu zake ndi chitsulo chapamwamba kwambiri cha kaboni ndi chitsulo chopanda aloyi.
GB/T8713 (Machubu achitsulo osapinda amkati olondola a masilinda a hydraulic ndi pneumatic). Amagwiritsidwa ntchito makamaka popanga mapaipi achitsulo osapinda opangidwa ndi ozizira kapena opindidwa ozizira okhala ndi mainchesi enieni amkati a masilinda a hydraulic ndi pneumatic. Zipangizo zake zoyimira ndi 20, 45 zitsulo ndi zina zotero.
GB13296 (machubu osapanga dzimbiri opanda msoko a ma boiler ndi ma heat exchanger). Amagwiritsidwa ntchito makamaka mu ma boiler, ma superheater, ma heat exchanger, ma condenser, ma catalytic tubes, ndi zina zotero. a makampani opanga mankhwala. Zipangizo zake zoyimira ndi 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, ndi zina zotero.
GB/T14975 (chitoliro chachitsulo chosapanga dzimbiri chopanda msoko chogwiritsidwa ntchito m'mapangidwe). Chimagwiritsidwa ntchito makamaka pa kapangidwe kake (hotelo, malo odyera) ndi kapangidwe ka makina amakampani omwe amalimbana ndi mpweya, dzimbiri la asidi ndi chitoliro chachitsulo chokhala ndi mphamvu inayake. Zipangizo zake zoyimira ndi 0-3Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, ndi zina zotero.
GB/T14976 (chitoliro chachitsulo chosapanga dzimbiri chopanda chitsulo chonyamula madzi). Chimagwiritsidwa ntchito makamaka pa mapaipi onyamula zinthu zowononga. Zipangizo zoyimira ndi 0Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr17Ni12Mo2, 0Cr18Ni12Mo2Ti, ndi zina zotero.
YB/T5035 (machubu achitsulo opanda msoko a ma casing a shaft a axle agalimoto). Amagwiritsidwa ntchito kwambiri popanga machubu achitsulo chapamwamba cha kaboni ndi alloy structural steel osasinthika achitsulo chotentha chozungulira cha ma casing a theka la axle agalimoto ndi machubu a axle a ma drive axle housing. Zipangizo zake zoyimira ndi 45, 45Mn2, 40Cr, 20CrNi3A ndi zina zotero.
API SPEC5CT (Casing and Tubing Specification) imapangidwa ndikufalitsidwa ndi American Petroleum Institute (American Petreleum Institute, yotchedwa "API") ndipo imagwiritsidwa ntchito kwambiri padziko lonse lapansi.
Pakati pawo, chitoliro: chitoliro chochokera pansi kupita ku chitsime monga momwe khoma la chitsime limakhalira, ndipo mapaipi amalumikizidwa ndi makolala. Zipangizo zazikulu ndi zitsulo monga J55, N80, ndi P110, ndi zitsulo monga C90 ndi T95 zomwe sizimakhudzidwa ndi dzimbiri la hydrogen sulfide.
Chitoliro cha mafuta: Chitoliro chomwe chimayikidwa mu casing kuchokera pansi kupita ku gawo la mafuta, ndipo mapaipi amalumikizidwa ndi ma coupling kapena integrally. Zipangizo zazikulu ndi J55, N80, P110, ndi ma grade achitsulo monga C90 ndi T95 omwe amalimbana ndi dzimbiri la hydrogen sulfide. API SPEC 5L (Line Pipe Specification), yopangidwa ndikufalitsidwa ndi American Petroleum Institute, imagwiritsidwa ntchito kwambiri padziko lonse lapansi. Chitoliro cha mzere: ndi chonyamula mafuta, gasi kapena madzi kuchokera ku shaft kupita ku mafakitale amafuta ndi gasi kudzera mu chitoliro cha mzere.
Mapaipi olumikizirana amakhala ndi mapaipi osapindika komanso olumikizidwa, ndipo malekezero a mapaipi ali ndi malekezero athyathyathya, malekezero olumikizidwa ndi malekezero a soketi; njira zolumikizira ndi kulumikiza kumapeto, kulumikizana kwa kolala, kulumikizana kwa soketi, ndi zina zotero. Zipangizo zazikulu za chitolirocho ndi B, X42, X56, X65, X70 ndi mitundu ina yachitsulo.
Malo opanda kanthu omwe amagwiritsidwa ntchito popangira mapaipi achitsulo olumikizidwa ndi mbale zachitsulo kapena chitsulo chodulidwa. Chifukwa cha zipangizo ndi njira zawo zosiyanasiyana, mapaipi olumikizidwa amagawidwa m'mapaipi olumikizidwa mu uvuni, mapaipi olumikizira magetsi (kuteteza ku kuuma) ndi mapaipi olumikizidwa a arc odzipangira okha. Chifukwa cha mawonekedwe ake omaliza, amagawidwa m'mapaipi ozungulira olumikizidwa ndi mapaipi olumikizidwa apadera (akuluakulu, athyathyathya, ndi zina zotero) pazifukwa zosiyanasiyana, ndipo amagawidwa m'mitundu iyi:
GB/T3091 (chitoliro chachitsulo cholumikizidwa ndi galvanized kuti chipereke madzi otsika mphamvu). Chimagwiritsidwa ntchito makamaka ponyamula madzi, gasi, mpweya, mafuta ndi kutentha madzi otentha kapena nthunzi ndi madzi ena otsika mphamvu ndi zina. Zinthu zake zoyimira ndi chitsulo cha Q235A.
GB/T3092 (chitoliro chachitsulo cholumikizidwa ndi galvanized kuti chipereke madzi otsika mphamvu). Chimagwiritsidwa ntchito makamaka ponyamula madzi, gasi, mpweya, mafuta ndi kutentha madzi otentha kapena nthunzi ndi madzi ena otsika mphamvu ndi zina. Zinthu zake zoyimira ndi: chitsulo cha Q235A.
GB/T14291 (mapaipi achitsulo olumikizidwa kuti ayendetse madzi m'migodi). Amagwiritsidwa ntchito makamaka pa mapaipi achitsulo olumikizidwa molunjika kuti agwiritse ntchito mpweya wopanikizika m'migodi, kutulutsa madzi, ndi mpweya wotulutsa mpweya m'migodi. Zinthu zake zoyimira ndi Q235A ndi chitsulo cha B grade.
GB/T14980 (Mapaipi achitsulo opangidwa ndi magetsi akuluakulu opangidwa ndi waya kuti apereke madzi otsika mphamvu). Amagwiritsidwa ntchito makamaka ponyamula madzi, zimbudzi, gasi, mpweya, nthunzi yotentha ndi madzi ena otsika mphamvu ndi zina. Zinthu zake zoyimira ndi chitsulo cha Q235A.
GB/T12770 (mapaipi achitsulo osapanga dzimbiri opangidwa ndi chitsulo chosungunula cha zomangamanga zamakina). Amagwiritsidwa ntchito makamaka pamakina, magalimoto, njinga, mipando, zokongoletsera mahotela ndi malo odyera ndi zida zina zamakina ndi zida za kapangidwe kake. Zipangizo zake zoyimira ndi 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, ndi zina zotero.
GB/T12771 (mapaipi achitsulo osapanga dzimbiri olumikizidwa ndi chitsulo chopanda dzimbiri kuti anyamule madzi). Zipangizo zoyimira ndi 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, ndi zina zotero.
Nthawi yotumizira: Feb-14-2023