Rauemi Matua (Rino Tautoko – maha ngā kōwhiringa):
●API 5L X52 / X60 / X65– paipa raina kaha mō te tuku hinu me te hau / waikawa
●SA-106 Gr.B– maitai waro pāmahana teitei
●SA-210 Gr.C– te taumata ngongo poihau
●ASTM A333 Gr.6– maitai waro pāmahana iti
●ASTM A335 P11 / P22– He koranu Cr-Mo mō te pāmahana teitei (he iti noa te whakamahinga me te 904L)
Whakatakotoranga (whakatakotoranga CRA):904L (UNS N08904 / 1.4539) – he kowiri tira austenitic teitei te konukōre me te 23-28% Ni, 19-23% Cr, 4-5% Mo, 1-2% Cu. PREN ≈ 34. He ātete pai ki ngā waikawa whakaiti (whanariki, whākawa, formic), he ātete pai ki te pakaru o te hauota, he pai ake i te 316L i roto i te mahi waikawa.
Awhe Rahi:OD 60 – 1219 mm (paipa whakakikoruatia – rōra wera + JCOE). OD 25 – 168 mm (whakaputa kore hononga). Matotoru o te pakitara matua 4 – 40 mm. Matotoru o te whakakikoruatia 2.0 – 4.0 mm (3.0 mm e taunakitia ana mō te ratonga waikawa). Roa kotahi tae atu ki te 15 m (kore hononga) 24 m rānei (whakapiri).
Tukanga:Te herenga rōra wera + te hanga JCOE (whakarewahia) te whakaputanga wera rānei (kore hononga). Te kaha kutikuti hononga whakarewa ≥200 MPa (whakarewahia) ≥300 MPa rānei (kore hononga). Te tirotiro hononga UT 100%, te whakamātautau waipū, te whakamātautau kume, te whakawhāiti, te whakamātautau PMI me te whakamātautau waikura ā-ira.
Ngā Paerewa:API 5LD (mō te paipa raina whakakikoruatia), ASME Wāhanga VIII Div.1, EN 10216-5 (mō te hononga 904L), ASTM A240 (pereti 904L). NACE MR0175: E whakaaetia ana te 904L mō te ratonga kawa i raro i ngā āhuatanga tino iti (H₂S iti, pūhaumāota iti, pāmahana iti) – kāore i te tūtohutia whānuitia.
Ngā tono:Ngā paipa o te tipu waikawa whanariki, ngā tipu tongi waikawa phosphoric, ngā pāmu tāke matū, ngā pūnaha whakamatao wai moana (pūhaumāota teitei), ngā horoi whakakorenga hau haurehu (FGD), te whakawhiti matū parakore teitei, te ratonga waikawa acetic/formic, te tukatuka rongoā me te kai (parakore teitei).
Womic Steele hanga ana i ngā paipa kua whakakikoruatia ki te 904L mō ngā mahi tino uaua o te whakahaere waikawa. Ka whakakotahi mātou i te ātete waikura o te 904L me te kaha miihini o te maitai waro/konumohe, ka penapena i te 40 60% ki te paipa totoka 904L. Kei te wātea ngā ine ritenga, te tirotiro a te hunga tuatoru, te EN 10204 Momo 3.2. Whakapā mai ki a mātou mō ngā otinga paipa kua whakakikoruatia ki te konumohe teitei.
1. He aha te paipa whakakikoruatia 904L? Ina kore e rawaka te 316L
Ko te 904L (UNS N08904 / 1.4539) he kowiri tira austenitic teitei-konumohe i hangaia mō ngā mahi ina pakaru te 316L nā te kore e ātete ki te waikawa, te pakaru rānei o te rua.
Ngā rerekētanga matua me te 316L:
| Taonga | 316L | 904L | Painga |
| Nikara (%) | 10-14 | 23-28 | Ka whakapai ake te Ni teitei i te ātete waikawa |
| Molibdenuma (%) | 2-3 | 4-5 | Ka whakapai ake te Mo teitei i te poka |
| Parahi (%) | — | 1-2 | He mea nui te Cu mō te ātete ki te waikawa whanariki |
| PREN | 24-26 | 34 | 904L he ātete nui ake ki ngā poka |
| Te ātete ki te waikawa whanariki | Kāore i te pai i raro i te 10%, i runga ake rānei i te 80% | Tino pai 0-80% i te pāmahana reo | Ko te 904L te paerewa mō te ratonga H₂SO₄ |
Ngā waikawa noa e tino pai ai te 904L:
● Waikawa whanariki (H₂SO₄) – 0-80% te kukū, tae atu ki te 50 60°C
● Waikawa phosphoric (H₃PO₄) – ngā kukū katoa
● Waikawa formic (HCOOH) me te waikawa acetic (CH₃COOH)
● Waikawa hauwai waimeha (HCl) – he iti noa iho
● Ngā waikawa whakaranu (hei tauira, H₂SO₄ + ngā pūhaumāota)
He aha i kakahuria ai?He tino utu nui te paipa totoka 904L (2 3× te utu o te 316L, 5 6× te utu o te maitai waro). Mā te whakamahi i tētahi paparanga angiangi (2 4 mm) 904L e herea ana ki tētahi paipa o waho o te maitai waro, ka tutuki i a koe te ātete waikura ōrite i40 60% te utu rauemi iti iho. Ka whakaratohia e te matua maitai waro te kaha ā-ringa i te utu iti iho i te utu o te koranu.
Ngā ahumahi noa:Te whakaputa me te kawe i te waikawa whanariki, ngā whare hanga tongi phosphate, ngā raina whakapūkara whakarewa, ngā waka tāke matū, ngā whakawhiti wera wai moana (te pūhaumāota teitei, te pāmahana reo).
2. Ngā Whakatakotoranga Rauemi – Ngā Kōwhiringa Rino Whakakikorua me te Tautoko 904L
2.1 Te Hanganga Matū o te Whakakikorua 904L (% mā te papatipu)
| Huānga | UNS N08904 (904L) |
| Waro (C) | ≤0.020 |
| Manganēhi (Mn) | ≤2.00 |
| Hiraka (Si) | ≤1.00 |
| Whēkau (P) | ≤0.040 |
| Whānariki (S) | ≤0.030 |
| Konukōmiuma (Kr) | 19.0 – 23.0 |
| Nikara (Ni) | 23.0 – 28.0 |
| Molibdenuma (Mo) | 4.0 – 5.0 |
| Parahi (Cu) | 1.0 – 2.0 |
| Rino (Fe) | Taurite |
He mea nui te tāpiri parahi mō te ātete ki te waikawa whanariki. Ki te kore he Cu, ka tere te whakaekenga o te 316L i roto i te H₂SO₄ mahana me te waimeha.
2.2 Ngā Āhuatanga Ā-ringa (Pamahana Rūma)
| Taonga | Whakatakotoranga 904L | Tautoko maitai waro noa |
| Kaha Hua (min, MPa) | 220 | 240 450 (i runga i te momo) |
| Kaha Kume (min, MPa) | 490 | 415 535 |
| Te roa (iti rawa, %) | 35 | 18 25 |
| Te pakeketanga (mōrahi) | 200 HB | E ai ki te māka |
2.3 Te Ātete ki te Waikura o te 904L – Ngā Raraunga Matua
| Waikawa | Te arotahi | Te pāmahana | Te Tere Waikura (mm/tau) |
| Whāriki (H₂SO₄) | 10-50% | 50°C | <0.1 (tino pai) |
| Whāriki (H₂SO₄) | 70-80% | 30°C | <0.1 |
| Pūkawa (H₃PO₄) | 30-85% | 80°C | <0.1 |
| Waikawa formic | tetahi | 100°C | <0.1 |
| Waikawa acetic | tetahi | 100°C | <0.1 |
| Wai moana | 3.5% Cl- | 30°C | He pai te ātete ki te poka (PREN 34) |
Ngā Here:Kāore e tūtohutia te 904L mō te waikawa whanariki kukū wera (>80°C) (>90%), mō te mahi waikawa hauwaihau pāmahana teitei rānei. Mō ēnā, whakaarohia ngā koranu nikara (Koranu C-276).
2.4 Ngā Kōwhiringa Rino Tautoko mō te Paipa Whakakikoruatia 904L
| Rino Tautoko | Paerewa | Kaha | Te tono matua mō te 904L Clad |
| API 5L X52 / X60 / X65 | API 5L PSL2 | 360 450 MPa hua | Ngā paipa waikawa tawhiti |
| SA-106 Gr.B | ASTM A106 | 240 MPa te hua | Ngā paipa o te whare whakapai me te whare matū |
| SA-210 Gr.C | ASME SA-210 | 245 MPa te hua | Ngā ngongo poihau/whakawhiti wera ratonga waikawa |
| ASTM A333 Gr.6 | ASTM A333 | 240 MPa te hua | Ngā paipa waikawa pāmahana iti (-45°C) |
| ASTM A335 P11 / P22 | ASTM A335 | 205 275 MPa hua | Te pāmahana teitei (>450°C?) Kia mōhio: 904L i whakawhāitihia ki te ~350°C i roto i te waikawa |
Tuhipoka mō te pāmahana tiketike:Kāore te 904L e pai mō ngā pāmahana whakarewa i runga ake i te 350-400°C i te wā e whakamahia ana te waikura. Tērā pea ka tu atu te maitai tautoko i ngā pāmahana teitei ake, engari ka whakawhāitihia e te whakakikorua te pāmahana ratonga katoa. Mō te ratonga waikawa pāmahana teitei (>400°C), whakaarohia te whakakikorua Alloy 825, Alloy 28 rānei.
Awhe Ahu 2.5
| Tikanga Hanga | Awhe OD (mm) | Taumaha Matua (mm) | Taumaha Whakakikorua (mm) | Te Roa Mōrahi (m) |
| I whakarewahia (roera wera + JCOE) | 219 – 1219 | 6 – 40 | 2.0 – 4.0 | 24 |
| Kore-tuitui (whakaputa) | 25 – 168 | 4 – 15 | 2.0 – 3.5 | 15 |
Te matotoru o te whakakikorua e taunakitia ana mō te mahi waikawa:3.0 mm te iti rawa. Mō ngā āhuatanga tino kaha (hei tauira, te waikawa whanariki wera me te tere rere teitei), ka tūtohu mātou kia 4.0 mm.
3. Tukanga Hanga – Hononga Rōra Wera + JCOE (Whakarewahia, OD ≥219 mm)
Mō ngā paipa waikawa whānui, koinei te huarahi matua:
| Hipanga | Whakaahuatanga |
| Te whakarite pereti | Ka horoia te pereti 904L (CRA) me te pereti maitai waro (te papa o muri), ka whakarārangihia (904L te taha o roto), ā, ka hiritia ki te korehau hei tango i te hāora. |
| Te herenga rōra wera | Ka whakamahanahia te puranga ki te 1100-1180°C, kātahi ka hurihia ki te ōwehenga whakaiti teitei (≥5:1). Ka piri ngā paparanga mā te whakamahi i te konganuku. |
| Pereti NDT | Whakamātautau ultrasonic 100% o te atanga here pereti whakakikoruatia. |
| Te hanganga o te JCOE | Ka mirahia te pereti whakakikoruatia ki te taha, kātahi ka hangaia hei paipa tuwhera mā te whakamahi i ngā mīhini perehi JCO. Ka huri te 904L hei mata o roto. |
| Te whakarewa hononga whakaroa | E rua ngā haerenga: te haerenga o roto me te whakakī 904L (te koranu 625 rānei), ngā haerenga o waho me te whakakī maitai waro. |
| Whakakikorua whakarewa (whiringa kore) | Ka taea te whakakikorua i te hononga whakarewa o roto ki te 904L, ki te koranu 625 rānei hei ārai katoa i te waikura. |
| Te maimoatanga wera | Whakamamae i te ahotea (mēnā e hiahiatia ana). Kāore e hiahiatia he maimoatanga wera i muri i te whakarewanga o te 904L. |
| NDT me te whakamātautau | Mō te Wāhanga 4. |
| Te whakapūkara me te whakakorekore | Mō te mata o roto 904L, hei whakarite i te paparanga kore mahi. |
| Te tirotiro whakamutunga me te tuku | He piko, he taupoki, he paihere. |
Mō te hononga kore (diameter iti, OD ≤168 mm):Te whakarewanga ā-pūwero + te whakaputanga wera (he rite ki ngā paipa kua whakakikoruatia o mua). Ka whakakorea te hononga whakaroa e te kore hononga, he mea pai mō ngā whakawhiti wera piko-U me ngā raina parakore teitei.
4. Tirotiro me te Whakamātautau – Paipa Whakakikoruatia 904L
Nā te mea he koranu teitei te 904L, ka aro nui mātou ki te hanganga o te whakakikorua me te manatoko whakamātautau waikura.
| Whakamātautau | Paerewa / Tikanga | Whānuitanga | Whakaae |
| PMI (XRF) o te whakakikorua 904L | Te Tāutuhi Rauemi Pai | Ia ngongo (ia pereti rānei) | Whakaūtia a Cu, Mo, Ni, Cr i roto i ngā whakaritenga |
| Bond UT | Ngaru kutikuti | 100% o te atanga kua whakakikoruatia | Kāore he wetewete >50mm; katoa <2% |
| UT Roa | ASTM E213 / ISO 10893 10 | 100% o te ngongo | Kāore he haruru e taea te whakakore |
| Whakamātautau waipū | 1.5× te pēhanga hoahoa | Ia ngongo | Kāore he turuturu |
| Kukume (rino tautoko) | Mō ia API 5L / A106 / me ētahi atu. | Mō ia wera | Tutuki i ngā whakaritenga mō te māka |
| Kuku (kutikuti here) | Panahia, kutikuti mowhiti rānei | Mō ia puranga | ≥200 MPa (whakarewahia) |
| Te pakeketanga (te whakakikorua 904L) | HV10 | Puranga | ≤200 HV |
| Te waikura ā-pūmua | ASTM A262 Mahi E (i runga i te 904L) | Mō ia puranga (whiringa) | Kāore he whakaekenga ā-whatu |
| Whakamātautau whakapapatahi | ASME SA 450 | Mō ia puranga | Kāore he pakaru |
Ngā Tiwhikete:EN 10204 Momo 3.1 (paerewa). Momo 3.2 me te kaiwhakaatu tuatoru (SGS, BV, DNV, TÜV) e wātea ana mēnā ka tonoa.
Ngā whakamātautau tāpiri mēnā ka tonoa (he utu):
● Pūmanawa poka (ASTM G5)
● Whakamātautau waikawa whanariki parahi whanariki mō te 904L (mō te ratonga H₂SO₄)
5. Ngā Whakamahinga – Ko te Paipa Whakakikoruatia 904L te Kōwhiringa Tika
5.1 Ngā Paipa Whakatō Waikawa Whāriki
Wero:He tino waikura te waikawa whanariki wera (60-80%, 50-80°C) ki te maitai waro, tae atu ki te 316L. Ko te 904L te rauemi paerewa mō te whakapūkara waikawa whanariki, ngā pourewa whakamaroke, me ngā paipa honohono mō ngā tekau tau.
Otinga:He paipa whakakikoruatia ki te 904L me te tuara maitai waro (SA-106 Gr.B, API 5L X52 rānei). Ka taea e te paparanga o roto 904L te pupuri i te waikawa; ka whakaratohia e te maitai waro he kaha ki te pēhanga, ā, ka whakaiti i te utu.
Tauira:24″ OD × 12.7 mm te taumaha matua × 3.0 mm te whāriki 904L, 12 m te roa. Whakamahia i roto i te waeine whakaora whanariki o te Rawhiti o Waenganui.
5.2 Ngā Tipu Tongi Waikawa Phosphoric
Wero:Kei roto i te waikawa phosphoric (30-50%, 50-90°C) ngā pūhaumāota, ngā pūhaumāota, me ngā totoka. Ka waikura ngā poka me ngā kapiti o te 316L. He pai ake te ātete o te 904L.
Otinga:Paipa whakakikoruatia ki te 904L me te papa SA-106 Gr.B. He tino whai hua te parahi i roto i te 904L i roto i te waikawa phosphoric.
5.3 Te Whakamatao / Te Whakakorenga o te Tote i te Wai Moana (Teitei o te Hauota)
Wero:Ka pāngia te 316L e te waikura kapiti i roto i te wai moana taurite i ngā pāmahana neke atu i te 30-40°C. He nui ake te PREN (34) o te 904L, ā, he pai ake te ātete ki te poka.
Otinga:Paipa whakakikoruatia 904L me te papa API 5L X65 mō ngā raina werohanga wai moana pēhanga teitei. Whakamahia i roto i ngā papaaho moana mō ngā pūnaha wai ahi me te whakamatao.
5.4 Te Rokiroki me te Whakawhiti i te Tāke Matū
Wero:Ko ngā tāke rokiroki mō te waikawa acetic, te waikawa formic, ngā waikawa rauropi whakauru rānei me whakamahi i te koranu totoka utu nui, i te maitai waro rānei kua whakakikoruatia ki te rapa. Tērā pea ka pakaru te arai rapa.
Otinga:He ārai waikura pumau, kore tiaki hoki te paipa whakakikoruatia 904L. Mō ngā paipa pāmu tāke, he pai te paipa whakakikoruatia whakarewa.
5.5 Ngā Kaiwhakakore Hau Para (FGD)
Wero:Ka whakahaerehia e ngā pūnaha FGD ngā paru gypsum he iti te pH me ngā pūhaumāota. He maha ngā pourewa mimiti FGD me ngā paipa putanga e whakamahi ana i te koranu 904L, neke atu rānei.
Otinga:He paipa whakakikoruatia ki te 904L mō ngā raina tukunga paru. Ko te tuara he A106 Gr.B, he A333 Gr.6 rānei (mēnā he makariri).
6. He aha koe i whiriwhiri ai i te maitai Womic mō te paipa whakakikoruatia ki te 904L?
| Kaha | Ngā Taipitopito |
| He wheako ki ngā koranu teitei | Kua hangaia e mātou he paipa whakakikoruatia ki te 904L mō ngā kaupapa wheketere waikawa maha i Haina, i te Waenganui Rawhiti, me te Tonga-mā-rāwhiti o Āhia. |
| Te hononga whakarewa tūturu | Kāore he mōrearea o te hinga o te arai – kua herea tūturutia te 904L ki te maitai tautoko. |
| Whānui te whānuitanga o ngā āhuatanga | He hononga kore hononga te diameter iti (whakaputa) tae atu ki te diameter nui kua whakapirihia (1219 mm). |
| Te whai i te katoa | Ka tuhia ia tau wera o te pereti 904L, ka honoa ki te paipa whakamutunga. Ka taea te mahi i te PMI i ngā wāhi maha. |
| Tirotiro a te hunga tuatoru | I kitea ngā āhuatanga SGS, BV, DNV, TÜV puta noa i te hanga. Kei te wātea te EN 10204 Momo 3.2. |
| Ngā penapena utu | 40 60% te iti iho o te utu i te paipa totoka 904L he rite te pēhanga. |
7. Tākai, Tukunga me te Wā Arataki
●Āhua:Ko te mata o roto o te 904L kua whakamākūkūtia, kua whakakorengia; ko te maitai waro o waho ka taea te pania ki te hinu, te pania rānei ki te paraihe.
● Te parenga pito:Ngā taupoki kirihou (ngā taupoki maitai mō ngā diameter nui).
●Te whakakotahitanga:Mō ngā diameter iti (<20″) – he paihere me ngā āputa. Mō ngā diameter nui – he pouraka takitahi.
●Te wā ārahi (tono tuatahi):14-18 wiki (te kimi me te huri i ngā pereti 904L). Ngā ota anō: 10-12 wiki.
●MOQ:Kāore he MOQ tino pakari; ka whakaaetia ngā ota whakamātautau (hei tauira, 100-200 mita). He teitei ake te utu mō ngā rahinga iti.
8. Ngā Pātai Auau (FAQ) – Paipa Whakakikoruatia 904L
Q1: Āhea ahau me whiriwhiri i te 904L kaua i te 316L mō ngā paipa whakakikoruatia?
A: Kōwhiria te 904L ina uru ana te ratonga ki rotowaikawa whanariki, waikawa phosphoric, waikawa formic/acetic, ina rānei kei te kitea he poka, he waikura whānui rānei i roto i tō taiao o te 316L. He pai ake hoki te 904L mō te wai moana mahana (ngā pūhaumāota teitei ake). Mena he paku waikawa noa te wai, kāore he pūhaumāota, he rawaka pea te 316L.
Q2: He aha te pāmahana mōrahi mō te 904L?
A: I roto i te ratonga waikura, ko te 904L ka herea ki te350-400°C. I tua atu i tēnā, ka pāngia pea te rauemi e te waikura, ka ngaro rānei te ātete ki te waikura. Mō te mahi waikawa pāmahana teitei (>400°C), whakaarohia te Alloy 825, te 625 rānei.
P3: Ka taea te whakamahi i te 904L mō te ratonga hau kawa (H₂S)?
A: Mā te NACE MR0175 / ISO 15156 ka taea te whakamahi i te 904L mō te mahi kawa i roto i ngā āhuatanga tino ngawari anake: te pēhanga wāhanga H₂S iti, te hauota iti, te pH >3.5, te pāmahana <60°C. Mō te hau mākū kawa noa, ko te Incoloy 825 te mea e pai ake ana.
Q4: He aha te konganuku whakakī hei whakamahi mō te whakarewa i te paipa whakakikoruatia ki te 904L?
A: Mō te ara o roto (904L ki te 904L), whakamahiaKoranu 625 (ERNiCrMo-3)rāneiWhakakī 904L (ER385)He mea noa ake te koranu 625, ā, he nui ake te haumaru. Kaua e whakamahia he whakakī 316L.
P5: Kei te wātea he paipa whakakikoruatia 904L i roto i ngā diameter iti (hei tauira, 2″) mō ngā taputapu?
Āe, mā roto i tā mātou tukanga whakaputa maeneene. Ko te iti rawa o te OD he tata ki te 25 mm (1″). Te matotoru o te hipoki 2.0 2.5 mm.
Q6: He aha te whakataurite i waenganui i te 904L me te Alloy 28 (UNS N08028)?
A: He austenitics koranu teitei e rua, he rite tonu te PREN (34 vs 38). He nui ake te Cr me te Ni o te koranu 28, ā, he pai ake te ātete ki te hauota teitei me te rua pāmahana teitei. Mō te waikawa whanariki, he tino pai ngā mea e rua. He paku utu nui ake te koranu 28. He nui ake te whakamahi i te 904L i roto i ngā tipu waikawa o Amerika Te Raki; ko te koranu 28 i roto i ngā whakaritenga a Ūropi.
Q7: Ka taea e koe te whakarato i te paipa whakakikoruatia 904L me te tautoko A333 Gr.6 mō te ratonga pāmahana iti?
Āe. Ka noho pūmau te 904L i te pāmahana iti; kua whakamatautauria te tautoko A333 Gr.6 i te -45°C. He pai te whakakotahitanga mō ngā paipa waikawa arctic (he onge engari ka taea).
P8: Kei te whakarato koe i te whakapumautanga kāore te whakakikorua e memeha i te maitai waro?
Āe. Mā te tukanga herenga rōra wera korehau ka ārai i te waikura me te whakaiti i te horapa. Ka whakahaerehia e mātou te PMI ki te mata whakakikorua hei manatoko i te hanganga. Ko te rohe waimeha he torutoru noa iho ngā maikorona te matotoru, ā, kāore e pāngia e te wai.
P9: He aha te kaha tuku noa o te whakakikorua 904L?
A: Ko te kaha whakaputa o te 904L he tata ki te 220 MPa (32 ksi) i roto i te āhua whakamahana. He iti iho tēnei i te tuara maitai waro engari he iti te matotoru o te uhi; ko te matua maitai waro e mau ana i te ahotea porowhita. Mō te hoahoa pēhanga, ka whakamahia e mātou te matotoru pakitara maitai tuara anake; ka kiia te uhi he ātete waikura.
Q10: Kei a koutou ngā pito piko me te pata 904L?
Āe. Ka taea e mātou te whakarite i ngā papa whakarara (30-35°, 1.6 mm te koki) me te pani i te pata ki te whakakikoruatanga o te Alloy 625, 904L rānei ki te mata o te papa whakarara. Mā tēnei ka ārai i te waimeha o te whakakikoruatanga 904L i te wā e whakakoi ana i te porowhita o te papa.
Q11: Ka taea e koe te tuku ngongo piko-U mō te whakawhiti wera 904L?
Āe, mō ngā paipa whakakikoruatia kore hononga (OD ≤168 mm). Ka piko mātao mātou, ka whakaiti i te ahotea, ka 100% NDT (PT, ET rānei) te wāhi piko. He mea noa ngā piko-U mō ngā ratonga waikawa i roto i ngā wheketere matū.
Q12: Me pēhea taku tono i tētahi rahinga whakamātautau iti?
A: Whakaratohia te OD, te WT matua, te matotoru o te whakakikorua, te roa (m), me te kounga maitai tautoko. Ka whakahuahia e mātou he utu mō te puranga whakamātautau (hei tauira, 50 100 mita). Me tumanako ki te utu nui mō ngā rahinga iti.
9. Rārangi Arowhai Tono mō te Paipa Whakakikoruatia 904L
Hei whakarite i ngā whakatakotoranga tika, tēnā whakaratohia mai:
●Te kounga maitai tautoko(API 5L X52/60/65, SA-106 Gr.B, SA-210 Gr.C, A333 Gr.6, A335 P11/P22 ranei)
● Te whānui o waho (OD)mete matotoru o te pakitara matua
● Te matotoru o te whakakikorua 904L(e taunaki ana kia 3.0 mm mō te mahi waikawa)
● Te roa mō ia wahimete roa katoa (mita)
● Tikanga hanga(i whakarewahia mō te OD ≥219 mm; he hononga kore mō te OD ≤168 mm)
● Paerewa e tika ana(API 5LD, ASME, EN, ngā whakaritenga a te kiritaki rānei)
● Taumata tirotiro(Paerewa Momo 3.1; Momo 3.2 me te rōpū tuatoru)
● Whakamutua te whakaotinga(maama, miro, miro + 904L pata)
● Te roanga tukunga(Tauranga FOB Haina, tauranga ūnga CIF)
Ka whakautu a Womic Steel me tētahi pepa raraunga hangarau, he whakatau utu arumoni, me tētahi mahere kounga.
10. Whakapā atu ki a Womic Steel – Tohunga Paipa Whakakikoruatia ki te Koranu Teitei
Ki te mea kei te rapu koe i tētahiPaipa whakakikoruatia ki te 316Lmēnā he maitai waro, he maitai koranu rānei te paparanga paerewa, whakapā mai ki a mātou mō tētahi kōrero hangarau kore utu, me te utu whakatau tata kore herenga.
Paetukutuku: www.womicsteel.com
Ī-mēra: sales@womicsteel.com
Waea / WhatsApp / WeChat:
Wikitōria: +86 15575100681
Hēki: +86 18390957568
Womic Steel – He otinga paipa whakakikoruatia ki te 316L kua whakaritea mō ngā mahi CO₂, te pōro, te whakawhiti wera, te pāmahana iti, me ngā mahi pāmahana teitei.
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