I. Yikuphi okubalulekileI-API5L
1. Insimbi yepayipi ye-API5L-B, elingana nohlobo lwe-L245 i-Wuyang Iron nensimbi, i-L245 ingeyochungechunge lwe-alloy ephansi, intengo iphakeme kakhulu, intengo yezinto ezahlukene ayifani, esetshenziswa kakhulu kumapayipi kawoyela, amapayipi emvelo, njll., iyipayipi le-coil elinomfutho ophansi, ukusebenza kwalo kanye nepayipi elingashukumi elingu-20# cishe.
2. Izinto ezibonakalayoIbanga le-X52 ipayipi lensimbi yepayipiinsimbi yomugqa, okuwuhlobo lwensimbi enezidingo ezikhethekile ezisetshenziselwa ukuthutha amapayipi kawoyela negesi yemvelo. Ngokusho kobukhulu kanye nokwakheka okulandelayo, ingakhiqizwa nge-hot continuous rolling mill, i-furnace rolling mill noma i-medium thick plate mill bese yakhiwa ibe yipayipi lensimbi elikhulu ngokushintshana kwe-spiral noma i-UOE straight seam welding.
3. Ipayipi lensimbi elingenamthungo noma elihlanganisiwe, okujwayelekileI-API 5L (ipayipi lepayipi) i-PSL2ingenye yama-grade, enye iyi-PSL1 uma iqhathaniswa, izidingo ze-PSL2 ziphakeme kune-PSL1API. I-5L iyincazelo yepayipi yepayipi eyenziwe yi-American Petroleum Institute, i-B ingenye yama-grade ensimbi yepayipi.
II. Izinga le-API5L
1. I-API5L ejwayelekile, inani lamajoyinti epayipi lensimbi kanye nepayipi i-WLD 10" SCH STD API5L i-ASTM A106 GRB ipayipi lensimbi elingenamthungo esigabeni esifanayo akumele lidlule u-50% wenani lamapayipi. Ngaphambi kokufakwa, ishede lamapayipi kufanele lishanele futhi lihlanze imigodi yokubhoboza noma umoya ocindezelekile ukuze kususwe ukungcola emigodini. Qinisekisa ukuthi imbobo (imbobo akufanele ibe ngaphansi kuka-127cm) ihlangabezana nezidingo futhi ivimbela ukuvaleka kwemigodi.
2. Cr:≤025 Nickel Ni:≤030 Copper Cu:≤025 Izakhiwo zemishini: Amandla okudonsa e-sigma b (MPa) : 560 (57) noma amandla okukhiqiza aphezulu sigma s (MPa) : 335 (34) noma i-delta yobude obuphezulu (%) : ukunciphisa ubukhali bendawo yama-bits ayi-18 (%) : 45 noma amandla omthelela aphezulu I-Akv (J) : 55 noma amanani okuqina komthelela aphezulu we-alpha kv (J/cm2).
Izinga elijwayelekile le-API 5L lihlanganisa izidingo zokukhiqiza zensimbi yamapayipi, ikakhulukazi amandla okudonsa, amandla okukhiqiza, ukuqina komthelela wokushisa kwegumbi, ukunwebeka ngesikhathi sokuphumula, njll. Ngokwezinhlobo zensimbi yamapayipi, i-API 5L ihlukaniswe ngepayipi lensimbi elijwayelekile kanye nepayipi lensimbi elikhethekile, phakathi kwalo ipayipi lensimbi elijwayelekile lihlukaniswe ngepayipi lensimbi elijwayelekile kanye nepayipi lensimbi elinamandla aphezulu, izinga elijwayelekile le-API 5L lihlanganisa nezidingo zenqubo yokukhiqiza yensimbi yamapayipi.
III, iyini impahla ye-API5Lgrb
1. I-API 5LGRB ayinamthungo nomaipayipi lensimbi elihlanganisiwe, indinganiso yi-API 5L (ipayipi lepayipi likaphethiloli), i-PSL2 ingenye yamazinga, elinye izinga yi-PSL1 uma liqhathaniswa, izidingo ze-PSL2 ziphakeme kune-PSL1API 5L iyincazelo yepayipi lepayipi elakhiwe yi-American Petroleum Institute, i-B uhlobo lwezinga lensimbi yepayipi.
2. Isitsha sokucindezela se-ASME SA517, ASTM A517 Ipuleti lensimbi ye-alloy enamandla aphezulu elicinyiwe futhi elithambile Izinga elijwayelekile le-ASME SA517/SA517M lifaka: SA517GrA, SA517GrB, SA517GrH, SA517GrS, SA517GrP, SA517GrF, SA517GrE, SA517GrQ; Izinga elijwayelekile le-ASTM A517/A517M lifaka: A517GrA,.
3. UkunikezwaI-API 5L PSL2okujwayelekileipayipi lensimbi elijikelezayoI-GrB-X70 Ububanzi bangaphandle 219-3650 mm Sawubona, besilokhu sikhiqiza ipayipi elijikelezayo iminyaka engama-24, sithemba ukuthi sizothola ithuba lokubambisana nani.
Isikhathi sokuthunyelwe: Ephreli-14-2023