| NGA WHAKAMAHI MO LSAW STEEL PIPE | |
| 1.Rahi | 1)OD:406mm-1500mm |
| 2) Te Matotoru o te taiepa: 8mm-50mm | |
| 3)SCH20,SCH40,STD,XS,SCH80 | |
| 2. Paerewa: | ASTM A53,API 5L,EN10219,EN10210,ASTM A252,ASTM A500etc |
| 3.Materi | ASTM A53 Gr.B,API 5L Gr.B,X42,X52,X60,X70,X80,S235JR,S355J0H ,etc |
| 4.Whakamahinga: | 1)te wai pehanga iti, te wai, te hau, te hinu, te paipa raina |
| 2) hanga putorino, hanga puranga paipa | |
| 3) taiapa, paipa tatau | |
| 5. Whakakikorua | 1) Karekau 2) Pania Pango (pani pania) 3) He piauau 4) Whakahinuhia 5) PE, 3PE, FBE, whakakikorua whakakikorua, whakakikorua Anti corrosion |
| 6. Hangarau | paipa maitai paiherea roa |
| 7. Tirotiro: | Ma te Hyd raulic Testing, Eddy Current, RT, UT, ma te tirotiro ranei e te hunga tuatoru |
| 8. Tukunga | Ipu, Waka Nui. |
| 9.Mo To Tatou Kounga: | 1) Kaore he pakaru, kaore he piko 2) karekau he tara, he tapa koi, karekau he pakaru 3) Kore utu mo te hinu me te tohu 4) Ka taea te tirotiro i nga taonga katoa ma te tirotiro tuatoru i mua i te tuku |
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Paipa LSAWka whakamahi i te hangarau whakaahuru pewa kua rukuhia, ma te whakamahi i te whakakii whakakii, te parenga matūriki kua tanumia te pewa kua tanumia.
Ko te LSAW te whakapotonga reo Ingarihi mo te pewa kua rukuhia he paipa tira whiri tika.Ko te tukanga whakaputa o te pewa kua rukuhia he paipa tira whiri tika kei roto ko te hangarau hanga JCOE, te hangarau whakahiato pewa ruku me te hangarau hanga UOE.
Ko te tukanga o te hanga Longitudinal Submerged-arc Welded(LSAW) Pipe e whai ake nei:
Te tirotiro i te pereti ultrasonic → te mira tapa → te piko o mua → te hanga → Te mahi o mua → Te raima o roto → Te whakapiri o waho → Te tirotiro i te Ultrasonic → Te tirotiro X-ray → Te whakawhānui → te whakamatautau waipēhi →l.Chamfering → Tirotiro ultrasonic → tirotiro X-ray → tirotiro matūriki autō i te pito ngongo
| Nga Whakaritenga Tensile | |||
| Kōeke 1 | Kōeke 2 | Kōeke 3 | |
| Te kaha matara, min, psi (MPa) | 50 000 (345) | 60 000 (415) | 66 000 (455) |
| Ira tuku, kaha tuku ranei, min, psi(MPa) | 30 000 (205) | 35 000 (240) | 45 000 (310) |
| Te whakaroa iti mo te matotoru pakitara whakaingoa %6 in. (7.9 mm) neke atu ranei: Te whakaroa i te 8 in. (203.2 mm), min, % Te whakaroa i te 2 in. (50.8 mm), min, % | 18 30 | 14 25 | ... 20 |
| Mo te matotoru pakitara whakaingoa iti iho i te %6 in. (7.9 mm), te tangohanga mai i te elongation iti rawa i roto i te 2 in. (50.08 mm) mo ia Vzi - in. (0.8 mm) ka heke iho te matotoru pakitara whakaingoa i raro i te %6 in. (7.9 mm), i roto i te ōrau | 1.5A | 1.25A | 1.0A... |
Whakamatau Hydrostatic
Whakamātautau NDT(RT).
Whakamātautau NDT(UT).
Whakamatau Piko—he pai te roa o te putorino me tu tonu ka piko i te matao ki te 90° huri noa i te mandrel porotakaroa.
Whakamātautau whakarata-ahakoa kaore e hiahiatia he whakamatautau, ka taea e te paipa te whakatutuki i nga whakaritenga whakamatautau papatahi.
Te whakamatautau wai-pateko—engari ka whakaaetia, ka tukuna ia roa o te putorino ki te whakamatautau wai-pateko me te kore e pakaru i te pakitara paipa.
Te whakamatautau hiko kore-hei rereke ki te whakamatautau wai-pateko, ka whakamatauria te tinana katoa o ia putorino me te whakamatautau hiko kore kino.ki te mahi whakamatautau hiko kore kino, me tohu nga roa ki nga reta "NDE"
Ko te whakamatautau ultrasonic
Ko te whakamātautau eddy nāianei
Pupa kore, paninga pango ( whakaritea);
Ko nga pito e rua me nga kaitiaki mutunga;
Ko te pito papa, te pito piko;
Te tohu.
| Ko te Diamita o waho | Ko te diameter o waho o nga puranga paipa kaua e rereke atu i te ±1% mai i te diameter o waho kua tohua. | ||
| Te matotoru o te pakitara | Ko te matotoru o te pakitara i tetahi waahi kaua e neke ake i te 12.5% i raro i te matotoru pakitara kua tohua. | ||
| Te roa | Ko nga puranga paipa me hoatu ki roto i te roa matapōkere kotahi, te roa matapōkere rua, te roa rite ranei kua tohua i roto i te ota hoko, i runga i nga rohe e whai ake nei: | Nga roa matapōkere kotahi | 16 ki te 25ft (4.88 ki te 7.62mm), inihi |
| Nga roa matapōkere rua | Neke atu i te 25ft (7.62m) me te iti rawa o te 35ft (10.67m) | ||
| Te roa o te rite | te roa kua tohua me te rerekee whakaaetia o ±1 inihi. | ||
| Taumaha | Ko ia roa o te puranga paipa me pauna motuhake, me tona taumaha kaua e neke atu i te 15% neke atu ranei i te 5% i raro i tona taumaha ariā, ka tatauhia ma te whakamahi i tona roa me tona taumaha mo ia waeine roa. | ||
