I. Kodi ndi zinthu ziti zomwe zili mkati?API5L
1. Chitsulo cha mapaipi cha API5L-B, chofanana ndi mtundu wa L245 Wuyang Iron ndi chitsulo, L245 ndi ya mndandanda wotsika wa alloy, mtengo wake ndi wokwera, mtengo wa zipangizo zosiyanasiyana si wofanana, makamaka amagwiritsidwa ntchito pa mapaipi amafuta, mapaipi achilengedwe, ndi zina zotero, ndi chitoliro cha coil chamadzimadzi chotsika, magwiridwe ake ndi chitoliro chopanda msoko cha 20# pafupifupi.
2. Zinthuzo ndiGiredi ya X52 chitoliro chachitsulo chapaipiChitsulo cha mzere, chomwe ndi mtundu wa chitsulo chokhala ndi zofunikira zapadera zomwe zimagwiritsidwa ntchito ponyamula mapaipi amafuta ndi gasi wachilengedwe. Malinga ndi makulidwe ndi kapangidwe kake, chingapangidwe ndi mphero yotentha yozungulira, mphero yozungulira ya uvuni kapena mphero yapakati yokhuthala ndipo chingapangidwe kukhala chitoliro chachitsulo chachikulu cha mainchesi awiri pogwiritsa ntchito welding yozungulira kapena welding yolunjika ya UOE.
3. Chitoliro chachitsulo chopanda msoko kapena cholumikizidwa, muyezo ndiAPI 5L (chitoliro cha payipi) PSL2ndi imodzi mwa magiredi, ina ndi PSL1 poyerekeza, zofunikira za PSL2 ndizokwera kuposa PSL1API 5L ndi tsatanetsatane wa payipi yapaipi yopangidwa ndi American Petroleum Institute, B ndi imodzi mwa magiredi achitsulo apayipi.
II. Muyezo wa API5L
Muyezo wa API5L, chiwerengero cha zingwe za chitoliro chachitsulo cha PIPE ndi PIPE WLD 10" SCH STD API5L ASTM A106 GRB chomwe chili ndi chitoliro chopanda msoko m'gawo lomwelo sichiyenera kupitirira 50% ya chiwerengero cha mapaipi. Musanayambe kukhazikitsa, chitolirocho chiyenera kusesa ndi kuyeretsa mabowo a kubowola kapena mpweya wothamanga kwambiri kuti muchotse matope m'mabowo. Onetsetsani kuti thumba (lobowolo siliyenera kupitirira 127cm) likukwaniritsa zofunikira ndikuletsa mabowo kutsekeka.
2. Cr:≤025 Nickel Ni:≤030 Copper Cu:≤025 Kapangidwe ka makina: Mphamvu yolimba ya sigma b (MPa) : 560 (57) kapena mphamvu yokwera ya sigma s (MPa) : 335 (34) kapena mphamvu yokwera ya elongation delta (%) : kuchepetsa kwa acuity kwa dera la 18 bits (%) : 45 kapena mphamvu yokwera ya Akv (J) : 55 kapena kukwera kwa mphamvu yolimba ya alpha kv (J/cm2).
Muyezo wa 3.API 5L umakhudza zofunikira pakupanga chitsulo cha mapaipi, makamaka pa mphamvu yokoka, mphamvu yotulutsa, kulimba kwa kutentha kwa chipinda, kutalika pakagwa kusweka, ndi zina zotero. Malinga ndi mitundu ya chitsulo cha mapaipi, API 5L imagawidwa m'zigawo za chitoliro chachitsulo ndi chitoliro chapadera chachitsulo, chomwe chitoliro chachitsulo chimagawidwa m'zigawo za chitoliro chachitsulo wamba ndi chitoliro chachitsulo champhamvu kwambiri, muyezo wa API 5L umakhudzanso zofunikira pakupanga chitsulo cha mapaipi.
III, kodi zinthu za API5Lgrb ndi ziti?
1. API 5LGRB ndi yopanda msoko kapenachitoliro chachitsulo choswedwa, muyezo ndi API 5L (payipi ya petroleum), PSL2 ndi imodzi mwa magawo, mlingo wina ndi PSL1 poyerekeza, zofunikira za PSL2 ndizokwera kuposa PSL1API 5L ndi tsatanetsatane wa payipi yapaipi yopangidwa ndi American Petroleum Institute, B ndi mtundu wa kalasi yachitsulo chapaipi.
2. ASME SA517, ASTM A517 chotengera cha kuthamanga chomwe chimazimitsidwa komanso kutenthedwa. Mbale yachitsulo champhamvu kwambiri cha aloyi ya ASME SA517/SA517M ikuphatikizapo: SA517GrA, SA517GrB, SA517GrH, SA517GrS, SA517GrP, SA517GrF, SA517GrE, SA517GrQ; ASTM A517/A517M ikuphatikizapo: A517GrA,.
3. KuperekaAPI 5L PSL2muyezochitoliro chachitsulo chozunguliraGrB-X70 M'mimba mwake wakunja 219-3650 mm Moni, takhala tikupanga chitoliro chozungulira kwa zaka 24, tikukhulupirira kuti tidzakhala ndi mwayi wogwirizana nanu.
Nthawi yotumizira: Epulo-14-2023