API 5L X42, yomwe imadziwikanso kuti L290, ndi mtundu wa chitoliro cholumikizira chomwe chimagwiritsidwa ntchito mumakampani amafuta ndi gasi.
Katundu wa zinthu ndimphamvu yocheperako yopezera phindu ya 42,100 psi(290 MPa) ndimphamvu yocheperako yolimba ya 60,200 psi(415 MPa). Ndi yapamwamba kuposa API 5L Giredi B ndipo ndi yoyenera kugwiritsidwa ntchito ndi mphamvu yapakati.
X42 nthawi zambiri imapangidwa mu Seamless, SSAW, LSAW, ndi ERW. Zophimba ndi zomalizitsa zimapezeka kuti zikwaniritse zofunikira zinazake zogwiritsira ntchito.
Mikhalidwe Yotumizira
Kutengera ndi momwe zinthu zilili komanso mulingo wa PSL, zitha kugawidwa m'magulu motere:
PSL1: X42 kapena L290;
PSL2: X42R, X42N, X42Q, X42M kapena L290R, L290N, L290Q, L290M;
Zilembo za PSL2 suffix iliyonse ikuyimira kutentha kosiyana.
R: Yopindidwa;
N: Kubwezeretsa zinthu m'malo mwachizolowezi;
Q: Wozimitsidwa ndi Wofatsa;
M: Chithandizo cha thermo-mechanical.
Njira Yopangira
X42 imalola njira zotsatirazi zopangira:
Ngati mukuona kuti mawu ofupikitsawa ndi ovuta kuwamvetsa, onani nkhani zathu zokhudzachidule chofala cha mapaipi achitsulo.
Botop Steel ingakupatseni mapaipi osiyanasiyana monga momwe tawonetsera patebulo pansipa.
Mitundu Yathu Yoperekera Zinthu
Muyezo: API 5L (ISO 3183);
PSL1: X42 kapena L290;
PSL2: X42R, X42N, X42Q, X42M kapena L290R, L290N, L290Q, L290M;
Chitoliro chachitsulo cholumikizidwa:LSAW(SAWL), SSAW (HSAW), DSAW, ERW;
Chitoliro chachitsulo chopanda msoko:SMLS;
Ndondomeko ya Mapaipi: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 ndi SCH160.
Kuzindikira: STD (Standard), XS (Extra Strong), XXS (Double Extra Strong);
Chophimba: Utoto, vanishi,3LPE, FBE, 3LPP, HDPE, galvanized, epoxy-zinc wambiri, simenti yolemera, ndi zina zotero.
Kulongedza: Nsalu yosalowa madzi, chikwama chamatabwa, lamba wachitsulo kapena waya wachitsulo, choteteza kumapeto kwa chitoliro cha pulasitiki kapena chitsulo, ndi zina zotero. Zokonzedwa mwamakonda.
Zogulitsa Zofanana: Ma Bends,ma flange, zolumikizira mapaipi, ndi zinthu zina zofanana nazo zikupezeka.
Kapangidwe ka mankhwala ka API 5L X42
Kapangidwe ka Mankhwala a PSL 1 Pipe yokhala ndi t ≤ 25.0 mm (0.984 in.)
Kapangidwe ka Mankhwala a Chitoliro cha PSL 2 chokhala ndi t ≤ 25.0 mm (0.984 in.)
Pa zinthu zachitsulo za PSL2 zomwe zawunikidwa ndikuchuluka kwa mpweya wa ≤0.12%, CE yofanana ndi kabonipcmakhoza kuwerengedwa pogwiritsa ntchito fomula iyi:
CEpcm= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Pa zinthu zachitsulo za PSL2 zomwe zawunikidwa ndikuchuluka kwa mpweya > 0.12%, CE yofanana ndi kabonillwakhoza kuwerengedwa pogwiritsa ntchito fomula ili pansipa:
CEllw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni +Cu)/15
Kapangidwe ka Mankhwala ndi t ＞ 25.0 mm (0.984 in.)
Izi zitha kufotokozedwa poganizira za kapangidwe ka mankhwala omwe ali pamwambapa.
Katundu wa Makina a API 5L X42
Katundu Wokoka
Kuyesa kwa konkire ndi mayeso ofunikira kwambiri pa kapangidwe ka makina a machubu achitsulo, omwe amatha kuyeza mphamvu ya zokolola, mphamvu ya konkire, ndi magawo ofunikira a kutalika.
Mphamvu yotulutsa ya X42 ndi 42,100 psi kapena 290 MPa.
Mphamvu yokoka ya X42 ndi 60,200 psi kapena 415 MPa.
Katundu Wolimba wa PSL1 X42
Katundu Wolimba wa PSL2 X42
ZindikiraniZofunikira zafotokozedwa mwatsatanetsatane mu gawo la Mechanical Properties laAPI 5L X52, zomwe zingawonekere podina zilembo zabuluu ngati mukufuna.
Mayesero Ena a Makina
Mayeso Opindika
Mayeso Ophwanyika
Mayeso Otsogozedwa
Mayeso a CVN Impact a PSL 2 Pipe
Mayeso a DWT a PSL 2 Welded Pipe
Zachidziwikire, si machubu onse omwe amafunika kuyesedwa kuti aone ngati ali ndi mphamvu zonse za makina, koma mayesowo amasankhidwa malinga ndi mtundu wa chubu. Zofunikira zenizeni zimapezeka mu Matebulo 17 ndi 18 a muyezo wa API 5L.
Muthanso kulumikizana nafe kuti mudziwe zambiri izi.
Mayeso a Hydrostatic
Nthawi Yoyesera
Machubu onse achitsulo chosasunthika komanso cholumikizidwa okhala ndi D ≤ 457 mm (18 in.):nthawi yoyesera ≥ masekondi 5;
Chitoliro chachitsulo cholumikizidwa D > 457 mm (18 in.):nthawi yoyesera ≥ masekondi 10.
Kuchuluka kwa Kuyesera
Chitoliro chilichonse chachitsulondipo sipadzakhala kutuluka kwa madzi kuchokera ku chinthu chosungunula kapena chitoliro panthawi yoyesa.
Kupanikizika kwa mayeso
Kupanikizika kwa mayeso a hydrostatic P kwa achitoliro chachitsulo chopanda malireakhoza kuwerengedwa pogwiritsa ntchito fomula.
P = 2St/D
Sndi kupsinjika kwa hoop. Mtengo wake ndi wofanana ndi mphamvu yocheperako yopezera mphamvu ya chitoliro chachitsulo cha xa peresenti, mu MPa (psi);
tndi makulidwe a khoma omwe atchulidwa, omwe amafotokozedwa mu mamilimita (mainchesi);
Dndi m'mimba mwake wakunja womwe watchulidwa, womwe umafotokozedwa mu mamilimita (mainchesi).
Kuyang'anira Kosawononga
Za machubu a SAWnjira ziwiri,UT(kuyesa kwa ultrasonic) kapenaRT(kuyesa kwa X-ray), nthawi zambiri kumagwiritsidwa ntchito.
ET(kuyesa kwa maginito) sikugwira ntchito pa machubu a SAW.
Mizere yolumikizidwa pa mapaipi olumikizidwa amitundu ≥ L210/A ndi mainchesi ≥ 60.3 mm (2.375 in) iyenera kuyang'aniridwa mosawononga makulidwe ndi kutalika konse (100%) monga momwe zafotokozedwera.
Kuyesa kosawononga kwa UT
Kuyesa kwa RT kosawononga
Machubu onse osapindika a PSL 2, ndi machubu osapindika otsekedwa komanso otenthedwa a PSL1 Giredi B, ayenera kuyesedwa nthawi zonse (100%) kuti asawononge.
Chimodzi kapena kuphatikiza kwa ET (Electromagnetic Testing), UT (Ultrasonic Testing), ndi MT (Magnetic Particle Testing) kungagwiritsidwe ntchito pa NDT.
Kulekerera kwa Miyezo
Zofunikira za API 5L pa kulekerera kwa magawo zafotokozedwa mwatsatanetsatane muAPI 5L Giredi BKuti mupewe kubwerezabwereza, mutha kudina zilembo zabuluu kuti muwone zambiri zomwe zikugwirizana.
Tchati cha Ndondomeko ya Chitoliro cha API 5L
Kuti zikhale zosavuta kuziona ndi kuzigwiritsa ntchito, takonza nthawi yoyenera yogwiritsira ntchito mafayilo a PDF. Mutha kutsitsa ndikuwonera zikalata izi ngati pakufunika kutero.
Kuphatikiza apo, API 5L imatchula kukula kwa khoma komwe kumaloledwa komanso kukula kwa khoma komwe kumatchulidwa.
Kulekerera kwa Miyezo
Zofunikira za API 5L pa kulekerera kwa magawo zafotokozedwa mwatsatanetsatane muAPI 5L Giredi BKuti mupewe kubwerezabwereza, mutha kudina zilembo zabuluu kuti muwone zambiri zomwe zikugwirizana.
Zogulitsa Zathu Zofanana
API 5L PSL1 & PSL2 GR.B Longitudinal Drived-arc Welded Pipe
Mafotokozedwe a Chitoliro cha Chitsulo cha API 5L X52 kapena L360 LSAW Welded
Mafotokozedwe a Chitoliro cha Welded Line cha API 5L X60 kapena L415 LSAW cha API 5L X60 kapena L415
Mafotokozedwe a Chitoliro cha Welded Line cha API 5L X65 ndi L450 LSAW cha API 5L X65 ndi L450 LSAW
Mafotokozedwe a Chitoliro cha Welded Line cha API 5L X70 kapena L485 LSAW cha API 5L X70 kapena L485
Kuyambira pomwe idakhazikitsidwa mu 2014,Chitsulo cha Botopwakhala kampani yotsogola yogulitsa mapaipi achitsulo cha kaboni kumpoto kwa China, yodziwika bwino chifukwa cha ntchito zabwino kwambiri, zinthu zapamwamba, komanso mayankho omveka bwino.
Kampaniyo imapereka mapaipi osiyanasiyana achitsulo cha kaboni ndi zinthu zina zokhudzana nazo, kuphatikizapo mapaipi achitsulo opanda msoko, ERW, LSAW, ndi SSAW, komanso mndandanda wathunthu wa zolumikizira mapaipi ndi ma flange. Zogulitsa zake zapadera zimaphatikizaponso zitsulo zapamwamba kwambiri ndi zitsulo zosapanga dzimbiri za austenitic, zopangidwa kuti zikwaniritse zosowa za mapulojekiti osiyanasiyana a mapaipi.
