Kufunika kwa ASTM A139 pakupanga mapaipi a gasi wachilengedwe pansi pa nthaka
Chitoliro chachitsulo cha kaboni cholumikizidwa mozungulira chopangidwa kutiASTM A139Yapangidwira makamaka ntchito zapansi panthaka monga njira zotumizira ndi kugawa gasi wachilengedwe. Mapaipi awa amapangidwa pogwiritsa ntchito njira yapadera yolumikizira yomwe imapanga malo olimba komanso olimba, omwe ndi ofunikira kwambiri popirira kupsinjika kwa pansi panthaka komanso momwe zinthu zilili mapaipi awa adzakumana nawo.
Katundu wa Makina
| Giredi 1 | Giredi 2 | Giredi 3 | |
| Mphamvu ya Yield Point kapena yield, min, Mpa(PSI) | 205 (30 000) | 240 (35 000) | 310 (45 000) |
| Mphamvu yokoka, mphindi, Mpa(PSI) | 345 (50 000) | 415 (60 000) | 455 (66 0000) |
Njira yolumikizira yozungulira yomwe imagwiritsidwa ntchito mu ASTM A139 imapatsa chitoliro malo osalala komanso okhazikika mkati, zomwe ndizofunikira kwambiri kuti mpweya wachilengedwe uyende bwino kudzera mu chitolirocho. Mapaipi awa amapezekanso m'madigiri osiyanasiyana ndi makulidwe a makoma, zomwe zimathandiza kuti kapangidwe kake kakhale kosinthasintha kuti kakwaniritse zofunikira za njira yotumizira kapena kugawa mpweya wachilengedwe.
Kuwonjezera pa kudalirika ndi kulimba, chitoliro cha ASTM A139 chimapereka kukana dzimbiri, zomwe ndizofunikira kwambiri kuti mapaipi a gasi achilengedwe apansi panthaka azikhala olimba kwa nthawi yayitali. Chitsulo cha kaboni chomwe chimagwiritsidwa ntchito m'mapaipi awa chapangidwa mwapadera kuti chisawonongeke, kuonetsetsa kuti mapaipiwo azikhalabe olimba komanso osatulutsa madzi kwa zaka zikubwerazi.
Chitetezo ndi chofunikira kwambiri pomanga mapaipi a gasi wachilengedwe pansi pa nthaka. Mapaipi a ASTM A139 amapangidwa ndikuyesedwa motsatira miyezo ndi zofunikira zamakampani, kuonetsetsa kuti amatha kupirira zovuta zapadera zogwiritsidwa ntchito pansi pa nthaka. Izi zimapatsa makampani opanga gasi wachilengedwe, oyang'anira ndi anthu mtendere wamumtima podziwa kuti zomangamanga zomwe zimapereka gasi wachilengedwe ndizodalirika komanso zotetezeka.
Pomaliza, ASTM A139chitoliro chachitsulo cha kaboni chozungulira chozunguliraZimagwira ntchito yofunika kwambiri popanga mapaipi a gasi wachilengedwe pansi pa nthaka. Kulimba kwawo, kukana dzimbiri komanso kutsatira miyezo ya mafakitale zimapangitsa kuti zikhale zoyenera kwambiri pa ntchito zofunika kwambiri monga izi. Ponena za kuonetsetsa kuti njira zotumizira ndi kugawa gasi wachilengedwe ndi zotetezeka, kugwiritsa ntchito mapaipi a ASTM A139 ndi chisankho chomwe sichinganyalanyazidwe. Posankha zipangizo zoyenera zogwiritsira ntchito pansi pa nthaka, tikhoza kuonetsetsa kuti zomangamanga zathu za gasi wachilengedwe zimakhalabe zotetezeka komanso zodalirika kwa mibadwo ikubwerayi.
