Miyezo ya ASTM ya Chitoliro cha Chitsulo cha Carbon
Bungwe la American Society for Testing and Materials (ASTM) lapanga miyezo yosiyanasiyana ya mapaipi achitsulo cha kaboni, omwe amafotokozera mwatsatanetsatane kukula, mawonekedwe, kapangidwe ka mankhwala, mawonekedwe a makina ndi zofunikira zina zaukadaulo za mapaipi achitsulo. Izi ndi miyezo ingapo yodziwika bwino ya ASTM ya mapaipi achitsulo cha kaboni:
1. Mapaipi Opanda Msoko a Kaboni
ASTM A53: Imagwiritsidwa ntchito pa zotchingira zakuda komanso zopanda msokomapaipi achitsulo opangidwa ndi galvanized otentha, yomwe imagwiritsidwa ntchito kwambiri pa zomangamanga, mapaipi, ndi zina zotero. Muyezo uwu wagawidwa m'magulu atatu: A, B, ndi C malinga ndi makulidwe a khoma.
ASTM A106: Mapaipi achitsulo cha kaboni chopanda msoko oyenera kugwiritsidwa ntchito kutentha kwambiri, ogawika m'magulu A, B, ndi C, omwe amagwiritsidwa ntchito makamaka m'mapaipi opatsira mafuta, gasi wachilengedwe komanso m'mafakitale a mankhwala.
ASTM A519: Imagwiritsidwa ntchito pa mipiringidzo yolondola yachitsulo cha kaboni ndi mapaipi opangira zinthu, yokhala ndi zofunikira zokhwima zololera.
2. Mapaipi achitsulo a kaboni opangidwa ndi welded
ASTM A500: Imagwiritsidwa ntchito pa sikweya yolumikizidwa yopangidwa ndi ozizira komanso yopanda msoko,amakona anayindi mapaipi ena achitsulo opangidwa ndi mawonekedwe, omwe amagwiritsidwa ntchito kwambiri pomanga nyumba.
ASTM A501: Imagwira ntchito pa mapaipi achitsulo opindidwa ndi moto komanso opanda msoko, amakona anayi ndi ena ooneka ngati chitsulo.
ASTM A513: Yogwiritsidwa ntchito pamagetsimapaipi achitsulo ozungulira olumikizidwa, yomwe imagwiritsidwa ntchito kwambiri popanga makina ndi zomangamanga.
3. Mapaipi achitsulo cha kaboni a ma boiler ndi ma superheater
ASTM A179: Imagwiritsidwa ntchito pa mapaipi a boiler achitsulo chozizira omwe amakokedwa ndi mpweya wochepa, oyenera kugwiritsidwa ntchito ndi nthunzi yothamanga kwambiri.
ASTM A210: Imagwiritsidwa ntchito pa mapaipi a boiler a carbon steel osasinthika, ogawika m'magulu anayi: A1, A1P, A2, ndi A2P, omwe amagwiritsidwa ntchito makamaka pa boilers apakati ndi otsika mphamvu.
ASTM A335: Imagwiritsidwa ntchito pa mapaipi otumikira kutentha kwambiri a ferritic alloy steel, ogawika m'magulu angapo, monga P1, P5, ndi zina zotero, oyenera mapaipi otentha kwambiri m'mafakitale a petrochemical ndi magetsi.
4. Mapaipi achitsulo cha kaboni cha zitsime za mafuta ndi gasi
ASTM A252: Imagwiritsidwa ntchito pa msoko wozungulira wozungulira pansi pa nthakamapaipi achitsulo olumikizidwaza milu, zomwe zimagwiritsidwa ntchito kwambiri popanga nsanja zakunja.
ASTM A506: Imagwiritsidwa ntchito pa mapaipi achitsulo olimba kwambiri okhala ndi zitsulo zochepa, oyenera kupanga zida zamafuta ndi gasi.
ASTM A672: Imagwiritsidwa ntchito pa mapaipi achitsulo cha silicon cha carbon manganese cholimba kwambiri, choyenera kugwiritsidwa ntchito pofunikira mphamvu zambiri.
Ma Spec a API 5LNgakhale kuti si muyezo wa ASTM, ndi muyezo wovomerezeka padziko lonse lapansi wa mapaipi achitsulo a mapaipi amafuta ndi gasi, womwe umaphimba mitundu yambiri ya mapaipi achitsulo cha kaboni.
5. Mapaipi achitsulo cha kaboni pazifukwa zapadera
ASTM A312: Imagwiritsidwa ntchito pa mapaipi osapanga dzimbiri opanda msoko komanso olumikizidwa. Ngakhale kuti makamaka ndi yachitsulo chosapanga dzimbiri, ilinso ndi zina zomwe zimagwiritsidwa ntchito pachitsulo cha kaboni.
ASTM A795: Imagwiritsidwa ntchito pa zitsulo za kaboni ndi zitsulo za alloy, zitsulo zozungulira ndi zinthu zawo zopangidwa ndi kuponyedwa kosalekeza ndi kupangira, zoyenera m'magawo enaake a mafakitale.
Momwe mungasankhire muyezo woyenera wa ASTM
Kusankha muyezo woyenera wa ASTM kumadalira zofunikira pakugwiritsa ntchito:
Malo ogwiritsira ntchito: Ganizirani zinthu monga kutentha kwa ntchito, momwe zinthu zilili pa kuthamanga kwa magazi, komanso kupezeka kwa zinthu zowononga.
Kapangidwe ka makina: Dziwani mphamvu yocheperako yofunikira yopezera mphamvu, mphamvu yokoka ndi zizindikiro zina zofunika.
Kulondola kwa miyeso: Pa ntchito zina zokonza kapena zomangira molondola, pangafunike kulekerera milingo yakunja ndi makulidwe a khoma mosamala kwambiri.
Kuchiza pamwamba: Kaya ndi galvanizing yotentha, kupaka utoto kapena njira zina zothanirana ndi dzimbiri zomwe zikufunika.
Nthawi yotumizira: Januwale-14-2025
