Chitoliro cha mzere: Ndi kunyamula mafuta, gasi kapena madzi ochotsedwa pansi kupita ku makampani opanga mafuta ndi gasi kudzera mu chitoliro cha chingwe. Mapaipi a chingwe amakhala ndi mapaipi osapindika komanso olumikizidwa. Mapeto a chitoliro ndi malekezero athyathyathya, malekezero a ulusi ndi malekezero a soketi; njira zolumikizira ndi kulumikiza kumapeto, kulumikizana, kulumikizana kwa soketi, ndi zina zotero.

Dzina la Chitchaina Chitoliro cha mzere Chitoliro cha mzere 10.3-2032×1.7-39.7mm Muyezo wokhazikitsaGB/T9711-2017/API SPEC 5LGwiritsani ntchito mayendedwe a gasi, madzi ndi mafuta mumakampani opanga gasi wachilengedwe

Chidule cha chitoliro cha mzere
Kugwiritsa Ntchito: Kumagwiritsidwa ntchito poyendetsa mafuta, madzi ndi mafuta mumakampani amafuta ndi gasi

API SPEC 5L-2018(Chidziwitso cha mapaipi a mzere) chimapangidwa ndikufalitsidwa ndi American Petroleum Institute ndipo chimagwiritsidwa ntchito kwambiri padziko lonse lapansi.

Malinga ndi zofunikira zosiyanasiyana za magwiridwe antchitoGB/T9711-2017Mapaipi achitsulo a mapaipi, kutentha kumatha kugawidwa m'mitundu iyi malinga ndi kutentha kwa kutentha:
1. Kutentha kotsika (madigiri 150-250)
Kapangidwe kamene kamapezeka chifukwa cha kutentha kochepa ndi martensite yofewa. Cholinga chake ndikuchepetsa kupsinjika kwamkati ndi kufooka kwa chitsulo chofewa pamene chikusunga kuuma kwakukulu ndi kukana kuwonongeka kwakukulu kwa chitsulo chofewa, kuti chipewe kusweka kapena kuwonongeka msanga panthawi yogwiritsa ntchito. Amagwiritsidwa ntchito makamaka pazida zosiyanasiyana zodulira mpweya wambiri, zida zoyezera, mapaipi achitsulo a GB/T9711, mabearing ozungulira ndi zida zotenthetsera, ndi zina zotero. Kuuma pambuyo pa kutentha nthawi zambiri kumakhala HRC58-64.
2. Kutentha kwapakati (madigiri 250-500)
Kapangidwe kamene kamapezeka pogwiritsa ntchito kutentha kwapakati ndi troostite yofewa. Cholinga chake ndikupeza mphamvu yochuluka, malire otanuka komanso kulimba kwambiri. Chifukwa chake, imagwiritsidwa ntchito makamaka pochiza mapaipi osiyanasiyana achitsulo a GB/T9711 ndi nkhungu zotentha, ndipo kuuma pambuyo pa kutentha nthawi zambiri kumakhala HRC35-50.
3. Kutentha kwambiri (madigiri 500-650)
Kapangidwe kamene kamapezeka pogwiritsa ntchito kutentha kwambiri ndi troostite yofewa. Chithandizo cha kutentha chomwe chimaphatikiza kuzima ndi kutentha kwambiri nthawi zambiri chimatchedwa kuzima ndi kutentha, cholinga chake ndi kupeza mphamvu zonse zamakanika zokhala ndi mphamvu, kuuma, pulasitiki komanso kulimba. Chifukwa chake, chimagwiritsidwa ntchito kwambiri m'magawo ofunikira a magalimoto, mapaipi achitsulo a GB/T9711, zida zamakina, ndi zina zotero, monga ndodo zolumikizira, mabolts, magiya ndi shafts. Kuuma pambuyo pa kutentha nthawi zambiri kumakhala HB200-330.
Magawo akuluakulu opangira mapaipi (API5L/GB/T 9711-2017):
1. PSL1: A/A210, B/L245,X42/L290, X46/L320,X52/L360, X56/L390,X60/L415, X65/L450, X70/L485, X80/L555
2. PSL2: BN/L245N, X42N/L290N, X46N/L320N, X52N/L360N, X56N/L390N, X60N/L415N, X65Q/L450Q, X70Q/L485 Q, X80Q/L555Q, X42Q/L290Q, X46Q/L320Q, X52Q/L360Q, X56Q/L390Q, X60Q/L415Q, X65Q/L450Q, X70Q/L485Q, X80Q/L555Q, X90Q/L625Q, X100Q/L690Q

3. Zinthu zogwiritsira ntchito paipi ya asidi: BNS/L245NS, X42NS/L290NS, X46NS/L320NS, X52NS/L360NS, X56NS/L390NS, X60NS /L415NS, X65QS/L450QS, X70QS/L485SQ, X80QS/L555QS, X42QS/L290QS, X46QS/L320QS, X52QS/L360QS, X56QS/L390QS, X60QS/L415QS, X65QS/L450QS, X70QS/L485QS
4. Chitoliro cha Acid/Still Service Line: BNO/L245NO, X42NO/L290NO, X46NO/L320NO, X52NO/L360NO, X56NO/L390NO, X60NO/L415NO, X65QO/L450QO, X70QO/L485QO, X80QO/L555QO, X42QO/L290QO, X46QO/L320QO, X52QO/L360QO, X56QO/L390QO, X60QO/L415QO, X65QO/L450QO, X70QO/L485QO, X80QO/L555QO, X90QO/L625QO, X100QO/L690QO

Chidziwitso: Pali zilembo zambiri zomwe zawonjezeredwa pambuyo paMuyezo wa API 5Lkalasi yachitsulo cha mapaipi, zomwe zikuyimira izi:
Kodi kalasi yachitsulo cha pipeline N imatanthauza chiyani? "N" imatanthauza normalizing heat treatment
Kodi chizindikiro cha Q cha chitsulo cha pipeline chimatanthauza chiyani? "Q" imayimira kuzima + kutentha kotentha
Kodi NS yachitsulo chapaipi imatanthauza chiyani? "NS" imayimira normalizing ndi acid ndi dzimbiri,
Kodi QS ya chitsulo cha pipeline imatanthauza chiyani? "QS" imayimira kuzima + kutentha kotentha komanso kukana asidi ndi dzimbiri