Mzere chitoliro mfundo: 8-1240 × 1-200mm

muyezo: API SPEC 5L

Kagwiritsidwe: amagwiritsidwa ntchito poyendetsa gasi, madzi ndi mafuta m'mafakitale amafuta ndi gasi.

API SPEC 5L-2007 (mafotokozedwe a mapaipi), yopangidwa ndi kuperekedwa ndi American Petroleum Institute, imagwiritsidwa ntchito kwambiri padziko lonse lapansi.Chitoliro chamzere: Mafuta, gasi kapena madzi omwe amachokera pansi amatumizidwa kumakampani amafuta ndi gasi wachilengedwe kudzera papaipi yamagetsi.Mapaipi a mzere amaphatikizapo mapaipi opanda msoko ndi mapaipi otsekemera.Mapeto a chitoliro amakhala ndi malekezero athyathyathya, nsonga za ulusi ndi malekezero azitsulo;njira kugwirizana ndi mapeto kuwotcherera, kugwirizana kugwirizana, kugwirizana zitsulo, etc. Nkhani yaikulu ya chubu ndi B, X42, X46, X56, X65, X70 ndi kalasi zina zitsulo..

Chitoliro cha mzere:

API SPEC 5L-American Petroleum Institute Standard

GB/T9711-China National Standard

Gwiritsani ntchito:

Mapaipi otumiza mpweya, madzi ndi mafuta omwe amagwiritsidwa ntchito m'mafakitale amafuta ndi gasi

Makamaka kutulutsa zitsulo chitoliro magulu:

B, X42, X52, X60, X65, X70 L245 L290 L320 L360 L390 L450 L485

Kulekerera kukula kwa chitoliro:

1.【Olekanitsa moto wamapaipi amizere】Kutentha kochepa (madigiri 150-250)

Kapangidwe kamene kamapezedwa ndi kutsika kwa kutentha ndi kutentha kwa martensite.Cholinga chake ndi kuchepetsa kupsinjika kwamkati ndi kuphulika kwachitsulo chozimitsidwa pansi pa malo osungira kuuma kwakukulu ndi kukana kuvala kwapamwamba, kuti mupewe kusweka kapena kuwonongeka msanga panthawi yogwiritsira ntchito.Amagwiritsidwa ntchito kwambiri pazida zosiyanasiyana zodulira mpweya wambiri, zida zoyezera, mapaipi achitsulo a GB/T9711.1, mipope yachitsulo, mayendedwe opiringizika ndi magawo a carburized, ndi zina zambiri. Kuuma pambuyo pakutentha nthawi zambiri kumakhala HRC58-64.

2.【Olekanitsa moto wamapaipi amizere】Kutentha kwapakatikati (madigiri 250-500)

Kapangidwe kamene kamapezedwa ndi kutentha kwapakatikati ndi kutentha kwa troostite.Cholinga chake ndikupeza mphamvu zokolola zambiri, malire otanuka komanso kulimba kwambiri.Chifukwa chake, imagwiritsidwa ntchito kwambiri pochiza mapaipi achitsulo a GB/T9711.1 osiyanasiyana ndi nkhungu zotentha zogwirira ntchito, ndipo kuuma pambuyo pakutentha nthawi zambiri kumakhala HRC35-50.

3. 【Olekanitsa moto pa mizere mipope】 Kutentha kwapamwamba (madigiri 500-650)

Kapangidwe kamene kamapezedwa ndi kutentha kwapamwamba ndi tempered sorbite.Mwachizoloŵezi, chithandizo cha kutentha chophatikiza kuzimitsa ndi kutentha kwapamwamba kumatchedwa quenching ndi kutentha, ndipo cholinga chake ndi kupeza zida zamakina ndi mphamvu zabwino, kuuma, pulasitiki ndi kulimba.Choncho, chimagwiritsidwa ntchito magalimoto, GB/T9711.1 mapaipi zitsulo mapaipi, zida makina ndi mbali zina zofunika structural, monga kulumikiza ndodo, mabawuti, magiya ndi mitsinje.Kuuma pambuyo kutentha nthawi zambiri kumakhala HB200-330.