API 5L yosawoneka bwino payokha ndi mawonekedwe omwe aku America a ku America attroleum Institute (API) ndipo amagwiritsidwa ntchito makamaka pamagulu am'mapapo ndi mafuta. Mapaipi achitsulo osawoneka bwino amagwiritsidwa ntchito kwambiri poyendetsa mafuta, mpweya wachilengedwe, madzi ndi zakumwa zina chifukwa cha mphamvu zawo zabwino komanso kukana. Otsatirawa ndi mawu oyamba a zinthu zosiyanasiyana za API 5l Standard ndipo ntchito zawo zogwiritsira ntchito, njira zopanga ndi kuyesa fakitale.

Malaya
API 5l gr.b, API 5l GR.b X42, API 5l GR.b 5l GR.b 5l GR.b GRARDLL GRA.b X70

Njira Zopangira
Kupanga kwa API 5l yachifumu yachitsulo kumaphatikizapo njira zotsatirazi:

Kusankha kwazinthu: sankhani ma billets apamwamba kwambiri, nthawi zambiri amakhala chitsulo chotsika kapena chitsulo chotsika.
Kutentha ndi kuboola: Billelet imatenthedwa kuti kutentha koyenera kenako thumba logwedezeka billet limapangidwa kudzera mu makina oboola.
Kuyenda kotentha: kabati ya Hollow Billet imakonzedwanso pam lonse woyendayenda kuti apange mainchesi omwe amafunikira ndi makulidwe a khoma.
Chithandizo cha kutentha: Kusintha kapena kukhazikika ndikusintha chitoliro cha ziphuphu kuti chiziyenda bwino.
Kujambula kozizira kapena kugubuduza kozizira: Kujambula kozizira kapena kugubuduza kozizira kumachitika monga momwe amafunikira kukwaniritsa molondola kwambiri komanso mawonekedwe apamwamba.
Kuyendera fakitale
Mapaipi achitsulo osawoneka bwino amayenera kuwunikira mosasunthika musanachoke fakitale kuti atsimikizire kuti akwaniritsa zofunikira:

Kusanthula kwa mankhwala: Onani kapangidwe kachitsulo kwa chitholiro kuti chitsimikizire kuti chikukwaniritsa miyezo yomwe yatchulidwa.
Kuyesa kwamakina kwa makina: kuphatikizapo kuchuluka kwa mphamvu, amapereka mphamvu ndi kuyesedwa kwa elongition.
Kuyesa kowononga: Gwiritsani ntchito kupezeka kolakwika kwa akupanga ndi kuyesa kwa X-ray kuti muwone zolakwika zamkati.
Kuzindikira kukula: Onetsetsani kuti mainchesi akunja, makulidwe a pakhoma ndi kutalika kwa chitoliro chachitsulo chikwaniritse zofunika.
Kuyesa kwa Hydrostatic: Chitani ma distric pa chitoliro chachitsulo kuti chitsimikizire chitetezo chake komanso kudalirika mukamagwira ntchito.
Chidule
Mapaipi achitsulo osawoneka bwino amagwiritsidwa ntchito kwambiri m'munda wamafuta ndi mayendedwe a mpweya chifukwa champhamvu kwambiri, kutsutsana kwawoko komanso kumakina abwino. Mapaipi a API 5l amakanema osiyanasiyana ndioyenera zovuta zosiyanasiyana komanso zachilengedwe, kukwaniritsa zosowa za zovuta zosiyanasiyana. Njira zopangira mafakitale ndi mafakisikidwe opangira mafakitale amaonetsetsa kuti mapaipi achitsulo, akuwonetsa chitsimikizo cha dongosolo labwino komanso labwino.