Ntchito: API 5L GR.B Seamless Line Pipe imagwiritsidwa ntchito potumiza gasi, madzi, ndi mafuta amafuta amafuta ndi gasi.
Njira Yopangira: API 5L GR.B chitoliro cha mzere wopanda msoko amapangidwa ndi kuzizira kapena kugudubuzika kotentha, monga momwe makasitomala amafunira.
Ntchito: API 5L Gr.B PSL1&PSL2 ERW Carbon Steel Pipe imagwiritsidwa ntchito potumiza gasi, madzi, ndi petroleum kumakampani onse amafuta ndi gasi.Kuphatikiza apo, anthu adazigwiritsa ntchito pazolinga zamapangidwe komanso zaukadaulo.Tithanso kupanga malata oviikidwa otentha ndikukulitsa kugwiritsa ntchito mapaipi oterowo.
Njira Yopangira:API 5L Gr.B PSL1&PSL2 ERW Carbon Steel Pipe ndi yopangidwa ndi makola achitsulo otentha.Amapangidwa pansi pa kutentha kwabwino mumlengalenga mwa kuzizira kupanga kozungulira kukhala mawonekedwe ozungulira a silinda.Amapangidwa ndi kugubuduza mbale ndi kuwotcherera msoko.
| Kupanga | Njira yopanda msoko, kuzizira kozizira kapena kukulunga kotentha / Electric Resistance Welding |
| Zozizira zokokedwa | OD: 15.0 ~ 100mm WT: 2 ~ 10mm |
| Hot adagulung'undisa | OD: 25 ~ 700mm WT: 3 ~ 50mm |
| Kukula(API 5L Gr.B PSL1&PSL2 ERW) | Kukula: 21.3 ~ 660mmWT.:2 - 25 mm |
| Utali | 6M kapena kutalika kwake komwe kumafunikira. |
| Kutha | Mapeto Oyera, Mapeto A Beveled, Amizere |
| Gulu ndi Chemical Composition (％) Ya API 5L PSL1 | |||||
| Standard | Gulu | Kupanga kwa Chemical (%) | |||
| C | Mn | P | S | ||
| API 5L | B | ≤0.28 | ≤1.20 | ≤0.030 | ≤0.030 |
| B | ≤0.26 | ≤1.20 | ≤0.030 | ≤0.030 | |
| Gulu ndi Chemical Composition (％) Ya API 5L PSL2 | |||||
| Standard | Gulu | Kupanga kwa Chemical (%) | |||
| C | Mn | P | S | ||
| API 5L | B | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 |
| B | ≤0.22 | ≤1.20 | ≤0.025 | ≤0.015 | |
| Mechanical Properties of API 5L GR.B Seamless Line Pipe (PSL1) | ||||
| Mphamvu zokolola (MPa) | Mphamvu ya Tensile (MPa) | ElongationA% | ||
| psi | MPa | psi | MPa | Elongation (Mphindi) |
| 35,000 | 241 | 60,000 | 414 | 21-27 |
| Mechanical Properties of API 5L GR.B Seamless Line Pipe (PSL2) | |||||
| Mphamvu zokolola (MPa) | Mphamvu ya Tensile (MPa) | Elongation A% | Zotsatira (J) | ||
| psi | MPa | psi | MPa | Elongation (Mphindi) | Min |
| 241 | 448 | 414 | 758 | 21-27 | 41 (27) |
| 35,000 | 241 | 65,000 | 448 | 21-27 | 41 (27) |
| Kukula | kulolerana (molingana ndi mainchesi akunja) |
| <2 3/8 | + 0.016 mkati, - 0.031 mkati (+ 0.41 mm, - 0.79 mm) |
| > 2 3/8 ndi ≤4 1/2, welded mosalekeza | ± 1.00% |
| > 2 3/8 ndi <20 | ± 0.75% |
| > 20. opanda msoko | ± 1.00% |
| > 20 ndi <36, welded | + 0.75%.-0.25% |
| > 36, welded | + 1/4 mu.. - 1/8 mkati (+ 6.35 mm, -3.20 mm) |
Pankhani ya chitoliro cha hydro-statically choyesedwa ku kukanikiza kopitilira muyeso woyeserera, kulolerana kwina kungavomerezedwe pakati pa wopanga ndi wogula.
| Kukula | Minus Tolerance | Kuwonjezera Kulekerera | Kulekerera Kumapeto | Kusazungulira | |
| Diameter, Axis Tolerance (Persenti ya OD Yotchulidwa) | Kusiyana Kwakukulu Pakati pa Mamita Ochepa ndi Opambana (Zimakhudza Paipi Yokha Yokhala ndi D/t≤75) | ||||
| ≤10 3/4 l&V4 | 1/64 (0.40mm) | 1/16 (1.59mm) mm) | - | - | |
| > 10 3/4 ndi ≤20 | 1/32 (0.79 mm) | 3/32 (2.38 mm) | - | - | - |
| > 20 ndi ≤ 42 | 1/32 (0.79 mm) | 3/32 (2.38 mm) | b | ± 1% | <0.500 mkati (12,7 mm) |
| > 42 | 1/32 (0.79 mm) | 3/32 (2.38 mm) | b | ± 1% | £ Q625 mu. (15.9 mm) |
Kulekerera kwakunja kwazungulira kumagwiritsidwa ntchito ku mainchesi apamwamba komanso ochepera monga momwe amayezera ndi bar gauge, caliper, kapena chipangizo choyezera ma diameter enieni komanso osachepera.
Pafupifupi awiri (monga momwe amayezera ndi tepi ya m'mimba mwake) a mapeto amodzi a chitoliro sichidzasiyana ndi 3/32 in. (2.38 mm) kuchokera ku mapeto ena.
| Kukula | Mtundu wa Chitoliro | Kulekerera1(Kuchuluka kwa Kunenepa kwa Khoma} | |
| Sitandade B kapena M'munsi | Gulu X42 kapena Kupitilira apo | ||
| <2 7/8 | Zonse | + 20.- 12.5 | + 15.0.-12.5 |
| > 2 7/8 ndi <20 | Zonse | + 15,0,-12.5 | + 15-I2.5 |
| >20 | Welded | + 17.5.-12.5 | + 19.5.-8.0 |
| >20 | Zopanda msoko | + 15.0.-12.5 | + 17.5.-10,0 |
Kumene kulekerera koyipa kocheperako kuposa komwe kwatchulidwa kumatchulidwa ndi wogula, kulekerera kwabwino kudzawonjezedwa kumlingo wokwanira wololera muperesenti kuchepera kwa makulidwe a khoma.
| Kuchuluka | Kulekerera (peresenti) |
| Utali umodzi, chitoliro chapadera chopanda malire kapena chitoliro cha A25 | + 10.-5.0 |
| Utali umodzi, chitoliro china | + 10,-35 |
| Carloads.GradeA25,40,000lb(18 144kg) kapena kuposa | -2.5 |
| Katundu wamagalimoto, kupatula Giredi A25,40.0001b (18 144 kg) kapena kupitilira apo | -1.75 |
| Magalimoto, magiredi onse osakwana 40000 lb (18 144 kg) | -15 |
| Onjezani zinthu.Gawo A25.40.000 lb (18 144 kg) kapena kupitilira apo | -3.5 |
| Odani zinthu, kupatula Giredi A25,40,000 lb (18 144 kg) kapena kuposa | -1.75 |
| Onjezani zinthu, magiredi onse, zosakwana 40.000 lb (18 144 kg) | -3.5 |
Ndemanga:
1. Kulekerera kulemera kumagwiritsidwa ntchito ku miyeso yowerengedwera ya chitoliro cha ulusi-ndi-wophatikizana ndi miyeso yolembedwa kapena yowerengeka ya chitoliro chosavuta.Ngati zololera zoyipa za makulidwe a khoma zing'onozing'ono kuposa zomwe zatchulidwa pamwambapa zafotokozedwa ndi wogula, kulolerana kowonjezera kulemera kwautali umodzi kudzawonjezedwa mpaka 22.5 peresenti kuchepera kulekerera koyipa kwa kulira.
2. Kwa magalimoto opangidwa ndi chitoliro kuchokera kuzinthu zoposa imodzi, kulolerana kwa galimoto kumayenera kugwiritsidwa ntchito pamtundu wazinthu zamtundu uliwonse.
3. Kulekerera kwa zinthu zoyitanitsa kumagwira ntchito ku kuchuluka kwa chitoliro chomwe chimatumizidwa kuzinthu zoyitanitsa.
Thupi la chitoliro NDT-Mapaipi adzakhala athunthu thupi ultrasonically kuyesedwa kusalakwa kwa longitudinal kupanda ungwiro, laminar kupanda ungwiro anayendera ndi makulidwe muyeso.
Mapeto a chitoliro NDT-Manual UT pa malo akhungu kumapeto kwa chitoliro chilichonse chiwunikiridwa.
Kuyesa kwazovuta-Malingana ndi ISO 6892 kapena ASTM A370.
Kuyesa kwamphamvu: molingana ndi API SPEC 5L.
Kuyesa kwa Hydro-static-Chubu chilichonse chidzayesedwa ndi hydro-static pressure test.
Kuyesa kwamphamvu kwa chitoliro cha chitoliro - Kuyesa kwamphamvu kuyenera kuchitidwa molingana ndi ISO6892 kapena ASTM A370. Zitsanzo zautali ziyenera kugwiritsidwa ntchito.
Kuyesa kwa Flattening-Kuyesa kumodzi kosalala kudzapangidwa pazitsanzo kuchokera kumapeto kwa machubu awiri osankhidwa pagawo lililonse.
Mayeso opindika - kutalika kokwanira kwa chitoliro kumayima kukhala kopendekeka kupyola 90 ° mozungulira cylindrical mandrel.
Mayeso osawononga magetsi-monga njira ina yoyeserera ya hydro-static, thupi lonse la chitoliro chilichonse liziyesedwa ndi mayeso osawononga magetsi.komwe kuyesedwa kosawonongeka kwamagetsi kumachitidwa, kutalika kwake kudzalembedwa ndi zilembo "NDE"
100% mayeso a X-ray a seam weld.
Kuyeza kwa ultrasonic.
Kufufuza kwamakono kwa eddy.
Kuchuluka kokwanira kwa zolakwika zowonekera kuti zipereke chitsimikizo chanthawi yake ndikofunikira.Cholakwikacho chidzachotsedwa kapena kudulidwa mkati mwa malire a zofunikira pautali.Chitoliro chomalizidwa chiyenera kukhala chowongoka bwino.
A. Dzina kapena chizindikiro cha wopanga.
B. Nambala yodziwika (tsiku la chaka kapena lofunikira).
C. Kukula (OD, WT, kutalika).
D. Gulu (A kapena B).
E. Mtundu wa chitoliro(F, E, kapena S).
F. Kuthamanga kwa mayeso (chitoliro chopanda chitsulo chokha).
G. Nambala ya Kutentha.
H. Zambiri zowonjezera zomwe zafotokozedwa muzogula.
● Chitoliro chopanda kanthu kapena Chophimba Chakuda / Varnish (malinga ndi zofuna za kasitomala);
● 6 "ndi pansi m'mitolo ya thonje ziwiri;
● Zonse zimathera ndi otetezera mapeto;
● Mapeto osavuta, malekezero a bevel (2"ndi pamwamba pa bevel, digiri: 30 ~ 35 °), ulusi ndi kugwirizana;
● Kulemba chizindikiro.
