1. Womic Steel: Ngā Pūkenga Hanga me te Kaha o te Kamupene
He kaihanga matua a Womic Steel Group, he kaihokohoko hoki o te ao, ā, neke atu i te 20 tau o te tohungatanga ki te whakaputa hua ngongo kowiri tira. E whakamahi ana tā mātou whare whakaputa paipa whakarewa TP304N motuhake i ngā hangarau whakarewa matatau maha me te whakauru wera whakahaere hei pupuri i te nui o te hauota i roto i te konganuku whakarewa:
- Raina ERW (Whakarewa Ātete Hiko):Mō ngā diameters mai i te 6.35mm ki te 610mm (1/4″ – 24″), ko te matotoru o te pakitara mai i te 0.5mm ki te 12.7mm. He whakarewa auau-teitei me ngā tawhā kua arotauhia hei pupuri i te hauota. He pai mō ngā paipa TP304N diameter iti ki te reo mō ngā tono pēhanga me te hanganga.
- Raina EFW (Whakarewa Hiko):Mō ngā diameters mai i te 219mm ki te 1219mm (8″ – 48″), ko te matotoru o te pakitara mai i te 4.0mm ki te 50mm. Te urunga pakiaka TIG (GTAW) me ngā urunga whakakī SAW, mā te whakamahi i te konganuku whakakī ōrite (ER304N, ER308 rānei me te hauota).
- Raina LSAW / SAWL mō te Kowiri tira:Mō ngā diameter mai i te 406mm ki te 1524mm (16″ – 60″), ko te matotoru o te pakitara tae atu ki te 50mm. Te whakarewatanga pewa ruku o ngā pereti TP304N kua hurihia.
Ka whakamahanahia ngā paipa TP304N katoa i te 1040-1120°C, ā, ka tineihia ki te wai hei pupuri i te hauota i roto i te wai totoka, hei whakaora anō hoki i te ātete ki te waikura, ā, muri iho ka whakamākūkūhia, ka whakakorengia.
Ngā Tiwhikete Kounga me ngā Whakatutukitanga Ture:
- Kua Whakamanahia te ISO 9001:2015
- PED 2014/68/EU (Tohu CE) mō ngā taputapu pēhanga
- EN 10204 3.2 Tiwhikete me te whakamanatanga a te hunga tuatoru (TÜV, BV, SGS, LR)
- Tirotiro-Tuatoru (TPI) kua whakaaetia e SGS, BV, ABS, DNV, TÜV
- Te Ture mō te Ipu Pēhanga me te Poiha ASME (Wāhanga VIII, Wehenga 1) ina tonoa
Ka tuku a Womic Steel i ngā paipa TP304N kua whakarewaina ki ngā whenua neke atu i te 40 puta noa i ngā ahumahi oko pēhanga, hanganga, me te matū.
Ngāwari o te Whakaputa:
- ERW: 6.35–610mm OD × 0.5–12.7mm WT × ≤ 12m
- EFW: 219–1219mm OD × 4.0–50mm WT × ≤ 12m (roa ake mēnā ka tonoa)
- LSAW: 406–1524mm OD × 6.0–50mm WT × ≤ 18m
- Ngā kōwhiringa whakaoti: Kua whakawerahia, kua whakamātaohia, kua whakawerahia kanapa, kua orohia (180# ki te 320#)
2. ASTM A312 TP304N: Te Hanganga o ngā Rauemi me ngā Āhuatanga Mahi
Ko te ASTM A312 TP304N he putanga whakakaha-hauota o te maitai kore waikura 304 paerewa. Mā te hauota (0.10-0.16%) ka whakakaha i te otinga totoka, ka whakanui ake i te kaha whakaputa mā te 35% pea, me te pupuri tonu i te ngāwari, te pakari, me te ātete ki te waikura. Mā tēnei ka taea te angiangi ake i ngā wāhanga pakitara mō te whakatauranga pēhanga ōrite, ka whakaiti i te taumaha me te utu.
Te Hanganga Matū (Tātaritanga Koro, % mā te papatipu):
| Huānga | TP304N (ASTM A312) | TP304 (hei whakataurite) |
| C | ≤ 0.08 | ≤ 0.08 |
| Mn | ≤ 2.00 | ≤ 2.00 |
| P | ≤ 0.045 | ≤ 0.045 |
| S | ≤ 0.030 | ≤ 0.030 |
| Si | ≤ 1.00 | ≤ 1.00 |
| Cr | 18.0 – 20.0 | 18.0 – 20.0 |
| Ni | 8.0 – 11.0 | 8.0 – 11.0 |
| N | 0.10 – 0.16 | ≤ 0.10 |
| Fe | Taurite | Taurite |
Ngā Āhuatanga Ā-ringa (Pāmahana Rūma, Wairewa Kua Whakawerahia):
| Taonga | TP304N | TP304 |
| Kaha Hua (iti rawa, 0.2% te rerekētanga) | 275 MPa (39,900 psi) | 205 MPa (30,000 psi) |
| Kaha Kume (min) | 550 MPa (79,800 psi) | 515 MPa (74,700 psi) |
| Te roa (iti rawa, 50mm te ine) | 35% | 40% |
| Te pakeketanga (mōrahi) | 90 HRB | 90 HRB |
Ngā Āhuatanga Ā-tinana:
- Kiato: 7.93 karamu/cm³
- Te Tauwehenga o te Āhuatanga: 200 GPa (29 × 10⁶ psi)
- Te Arahi Wera: 16.2 W/m·K i te 100°C
- Tauwehenga o te Whakawhanuitanga Wera: 17.2 × 10⁻⁶/°C (20-100°C)
Ātete ki te Waikura:
- He rite ki te 304 i te nuinga o ngā taiao (he ātete pai ki ngā waikawa waikura, ngā waikawa waro)
- He paku pai ake te ātete ki te pakaru o te oneone nā te hauota (PREN ≈ 19-20 vs 18 mō te 304)
- He ātete tino pai ki te waikura intergranular i muri i te whakarewa (ina whakawerahia tika te otinga)
- Kāore e tika ana mō te ratonga pūhaumāota i runga ake i te pāmahana taiao (whakamahia te 316N, te takirua rānei mō ngā pūhaumāota)
Ngā Painga Matua i runga i te 304:
- Mā te kaha whakaputa 35% teitei ake ka taea te angiangi ake o ngā pakitara (te whakaiti taumaha 20-25%)
- Te ahotea whakaaetia teitei ake i ia Wāhanga VIII o te ASME mō ngā oko pēhanga
- Te āheinga whakarewa me te āheinga hanga rite
- He paku pai ake te ātete ki te poka
3. Te Awhe Ahu me te Whakatutukitanga Paerewa
| Taonga | Whakatakotoranga |
| Paerewa | ASTM A312 / ASME SA312 (me A358, A249 hoki) |
| Ngā Tukanga Hanga | ERW, EFW, LSAW |
| Awhe Diameter o Waho | ERW: 6.35 – 610mm; EFW/LSAW: 219 – 1524mm |
| Awhe Matotoru o te Pakitara | ERW: 0.5 – 12.7mm; EFW/LSAW: 4.0 – 50mm |
| Awhe Whakarite | 5S, 10S, 40S, 80S (mō NPS 1/8″ – 48″) |
| Awhe Roa | Paerewa: 6m; Whakaroa: 12m, 18m, tae atu ki te 24m |
| Whakamutunga Whakamutunga | Pito Maamaa (PE), Pito Whakapiko (BE) |
| Whakaotinga Mata | Kua whakawerahia, kua whakamātaohia, kua whakakanapahia |
| Ngā Manawanui | OD: ±0.5% ±3.2mm rānei; Taumaha: ±12.5% (mō ia ASTM A999); Roa: +50mm / -0mm |
4. Ngā Ahu me ngā Whakatakotoranga e Wātea ana – Paipa Kowiri tira ASTM A312 TP304N
| NPS | Ō (mm) | Rārangi Mahi | Taumaha (mm) | Taumaha (kg/m) | Roa Paerewa | Te Whakamahinga Noa |
| 1/2″ | 21.3 | 10S | 2.11 | 1.00 | 6m | Raina waipēhi |
| 3/4″ | 26.7 | 10S | 2.11 | 1.28 | 6m | Te inenga matū |
| 1 inihi | 33.4 | 10S | 2.77 | 2.09 | 6m | Wai pēhanga teitei |
| 1-1/2″ | 48.3 | 10S | 2.77 | 3.11 | 6m | Raina tukanga |
| 2 inihi | 60.3 | 10S | 2.77 | 3.93 | 6m / 12m | Ipu pēhanga |
| 3 inihi | 88.9 | 10S | 3.05 | 6.46 | 6m / 12m | Pou hanganga |
| 4 inihi | 114.3 | 10S | 3.05 | 8.37 | 6m / 12m | Whakawhiti wera |
| 6 inihi | 168.3 | 10S | 3.40 | 13.8 | 6m / 12m | Mira pepa |
| 8 inihi | 219.1 | 10S | 3.76 | 20.0 | 12m | Te taha o te moana |
| 10 inihi | 273.0 | 10S | 4.19 | 27.8 | 12m | Tautoko hanganga |
| 12 inihi | 323.9 | 10S | 4.57 | 36.0 | 12m | Pane matua |
| 16 inihi | 406.4 | 10S | 4.78 | 47.4 | 12m | Anga ipu pēhanga |
| 20 inihi | 508.0 | 10S | 5.54 | 68.6 | 12m | Te whānui nui |
| 24 inihi | 609.6 | 10S | 6.35 | 94.4 | 12m | Tāke rokiroki |
Kei te wātea ngā inenga ritenga i waho atu i ēnei awhe. Ka taea e TP304N te hanga pakitara angiangi ake i te 304 mō te whakatauranga pēhanga ōrite.
5. Ngā Paerewa me ngā Taumata o te Kowiri tira noa i hangaia e Womic Steel
| Paerewa | Ngā Tohu Rino | Te Whakamahinga Noa | Tukanga Whakarewa |
| ASTM A312 | TP304N, TP304, TP304L, TP316N, TP316 | Ratonga waikura, pēhanga | ERW/EFW/LSAW |
| ASTM A358 | TP304N, TP304, TP316 | Whakarewa hiko honohono | EFW |
| ASTM A249 | TP304N | Pūwero, whakamahana nui, whakawhiti wera | ERW/EFW |
| ASTM A312 | TP304L, TP316L | Ratonga waikura whānui | ERW/EFW/LSAW |
| EN 10217-7 | 1.4315 (304N) | Ngā kaupapa pēhanga | SAW/ERW |
Whakamahinga:Ngā oko pēhanga, ngā wāhanga hanganga, ngā paipa tai moana, te tukatuka matū, ngā whakawhiti wera, ngā taputapu mira pepa.
6. Tukanga Hanga – Paipa Kowiri tira i whakarewaina (ERW, EFW, LSAW)
Tukanga Whakarewa Ātete Hiko (ERW) – Te Diameter Iti ki te Waenga (6.35–610mm OD):
1. Tirotiro Rauemi Mata (Rīpene/Koiri):Kua manatokohia te hanganga o te rīpene TP304N (Cr 18-20%, Ni 8-11%, N 0.10-0.16%). He motuhake te tau wera o ia koiri.
2. Te Wetewete me te Whakatakotorite
3. Te Tapahi Tapa
4. Te Hanga:Te hanga hurihuri tonu.
5. Te Whakarewa Auau-Teitei:Kua arotauhia te whakaurunga wera (≤ 1.5 kJ/mm) hei pupuri i te hauota. Tērā pea me tere ake.
6. Te Whakamahana Tuitui:Te whakamahana ā-whakarewa, ā, muri iho ka tineia te wai.
7. Te Rahi me te Whakatikatika
8. Te tapahi ki te roa
9. Te kore utu:Whakamātautau iahiko Eddy (100%) + UT kōwhiringa.
10.Te Whakamahana Otinga (Paipa Katoa):1040-1120°C, tineia ki te wai. He mea nui mō te whakarewa i ngā nitride me te whakaora i ngā āhuatanga.
11.Whakamātautau Waipūmau
12.Te Whakapūkara me te Whakakorekore
13.Manatoko PMI (XRF) me te Hauota (mēnā kua tohua)
14.Tirotiro Whakamutunga me te Tohu
Tukanga EFW (Whakarewa Hiko Hiko) – Diameter Nui (219–1219mm OD, 4.0–50mm WT):
1. Te Whakarite Pereti:Pereti TP304N, he tapa whakarara (X whakarara).
2. Te Hanga Rōra
3. Te Whakarewa Taapiri
4. Te Huarahi Pūtake TIG (GTAW):He whakakī ōrite (ER308, ER304N rānei), he hau tautoko argon.
5. Ngā Pāhi Whakakī me te Taupoki SAW:SAW maha-haerenga me te whakaurunga wera whakahaere (≤ 1.8 kJ/mm), waenga-haerenga ≤ 150°C.
6. Whakarewatanga o roto
7. Whakamātautau Irirangi 100%(mō ASTM A358)
8. Te Whakamahana Otinga:Maimoatanga wera paipa katoa (1040-1120°C), tineia te wai.
9. Te Whakapūkara me te Whakakorekore
10.Whakamātautau Waipūmau
11.Tirotiro me te Tohu Ahu
Tukanga LSAW mō te Kowiri tira – Te Diameter Tino Nui (406–1524mm OD, 6.0–50mm WT):
- UOE, JCOE rānei e hangaia ana mai i te pereti TP304N
- Te whakarewa taha-rua o te SAW
- Te whakamahana otinga katoa i muri i te whakarewa
Ngā Whakaaro Motuhake mō te TP304N:
- Me whakahaere te nui o te hauota kia kore ai e puta he ua nui.
- Te pāmahana whakamahana otinga i te pito teitei o te awhe (1080-1120°C) hei whakarewa i ngā nitride
- Me tinei te wai kia mau ai te hauota i roto i te wai totoka
- Me rite te nui o te hauota ki ngā mea whakarewa (ER308L me te tāpiri N)
7. Ngā Tukanga Whakahaere Kounga me te Whakamātautau mō te Paipa Kowiri tira ASTM A312 TP304N
| Atamira | Tikanga Tirotiro | Kaupapa |
| Rauemi Mata | Tātari Matū (OES + Te tahunga mō te N) | Manatokohia te TP304N (N 0.10-0.16%, Cr 18-20%, Ni 8-11%) |
| Rauemi Mata | Whakamātautau Kume | Manatokohia te hua ≥ 275 MPa, te kume ≥ 550 MPa |
| Rauemi Mata | Te pakeketanga | ≤ 90 HRB |
| Kei te Tukatuka | Aroturukitanga Whakauru Wera | ≤ 1.8 kJ/mm |
| Whakarewa (ERW) | Iahiko Eddy (100%) | Te pono o te whakarewa |
| Whakarewa (EFW/LSAW) | 100% UT (PAUT rānei) | Kitea ngā hapa whakarewa |
| Whakarewa (EFW/LSAW) | RT (wāhi, 100% rānei mō ia whakaritenga) | Kounga whakarewa |
| Whakarewa | Te Whakauru Tae (PT) | Ngā kapiti o te mata |
| Te Whakamahana i Muri i te Otinga | Whakamātautau Pakari | ≤ 90 HRB |
| Te Whakamahana i Muri i te Otinga | Manatoko Hauota (mēnā kua tohua) | Whakaūtia te nui o te N i roto i te paipa kua oti |
| Paipa Kua Oti | Whakamātautau Waipūmau | Te pono o te pēhanga |
| Paipa Kua Oti | Te Whakapapatahi / Te Piko Ārahi | Ngāwari |
| Paipa Kua Oti | PMI (XRF) | Whakaū i te māka (Cr, Ni) |
| Paipa Kua Oti | Tirohanga me te Tohu | Te Whai Aroturuki |
Ngā Whakamātautau Kōwhiringa:
- Whakamātautau kume pāmahana teitei (mēnā e hiahiatia ana mō te hoahoa)
- Whakamātautau waikura poka (ASTM G48) mō te ratonga nui
- Whakamātautau waikura ā-pūmua (ASTM A262 Mahi E)
8. Ngā Whakamahinga Matua – Paipa Kowiri tira ASTM A312 TP304N kua Whakarewahia
1. Ngā oko pēhanga me ngā tāke rokiroki:Mā te taumahatanga teitei ake e whakaaetia ana e te ASME Wāhanga VIII ka taea te angiangi ake o ngā pakitara (he penapena taumaha 20-25) ki te whakaritea ki te 304.
2. Ngā wāhanga hanganga i roto i ngā taiao waikura:Ngā tautoko o te papaaho takutai moana, ngā anga hanganga o te tipu matū, ngā pou o te tipu tukatuka kai. Ko te kaha ake ka whakaiti i te rahi o te wāhanga.
3. Ngā paipa o runga o te papaaho takutai moana:Ngā paipa tukatuka e hiahiatia ana he pēhanga teitei ake engari kāore e hiahiatia he pēhanga takirua. Ka whakaratohia e te TP304N te kaha waenga.
4. Te tukatuka matū (ngā pūnaha pēhanga teitei):Ngā paipa tomo/putanga o te tauhohenga, ngā raina whakawhiti pēhanga teitei, ina kore e ranea te 304 engari kua nui rawa te 316L i te mea kua tohua.
5. Ngā anga me ngā ngongo whakawhiti wera:Ka taea te whakanui ake i te pēhanga taha anga me te kore e whakamātotoru i te anga. Ka taea e ngā ngongo te whai pakitara angiangi ake kia pai ake ai te whakawhiti wera.
6. Ngā taputapu mira pepa:Ngā paipa pupuhi o te mīhini keri, ngā paipa whakarite kararehe he kaha ake te ātete ki te horo-waikura.
7. Ngā paipa hanga pia me te miraka:Ngā pūnaha CIP pēhanga teitei (Clean-In-Place) me ngā raina hua e mahi ana i te 10-15 pae.
8. Ngā raina waipēhi:Ngā aho taputapu me ngā aho whakahaere e hiahia ana ki te pēhanga pahū teitei ake i te 304.
9. Ngā tinana papu me ngā takirere:Ngā wāhanga whakarewa, ngā wāhanga hanga rānei (ka whakakapi i te 304 ki te kaha ake).
10.Ngā pūnaha maimoatanga wai pēhanga teitei:Ngā raina whāngai osmosis whakamuri (he teitei ake te whakatauranga pēhanga).
11.Ngā hanganga hoahoa:Mēnā he kaha ake, ka taea te hangai ake i ngā kōtaha (ngā ringaringa, ngā tautoko).
9. Tākai me te Tukunga – Paipa Kowiri tira ASTM A312 TP304N
Tākai:
- Te parenga ā-waikura:He paipa kua pania ki te hinu, he pepa VCI rānei. Mō te kai/te hanga pia, kāore he toenga hinu (he takai kirihou).
- Ngā taupoki mutunga:Ngā taupoki kirihou mō ngā pito piko.
- Te here (Ngā diameter iti):He paihere me ngā whitiki rino me te pepa honohono.
- Tākai takitahi (Ngā diameters nui):Takai kiriata kirihou.
- Ngā pouaka rakaumō ngā tono tino nui.
Tukunga:
- Ipu mō te ≤ 610mm, pakaru-papatipu mō ngā diameter nui ake.
- Ngā tuhinga:MTC 3.1/3.2, pūrongo whakamātautau wai, pūrongo iahiko porowhita/UT, pūrongo PMI, pūrongo ā-ahu, rārangi tākai, Tumu Whakahaere Matua.
10. Ngā Painga me ngā Pātai Auau mō te Rino Womic – Paipa Rino Kowiri tira ASTM A312 TP304N kua Whakarewahia
He aha koe ka mahi tahi ai me Womic Steel mō te paipa whakarewa TP304N?
- Awhe Rahi Katoa: ERW 1/4″ – 24″, EFW/LSAW 8″ – 60″.
- Te whakamahana i te otinga katoa i muri i te whakarewa (1040-1120°C, te tineia i te wai).
- I manatokohia te pupuri hauota mā te tātaritanga mura.
- Mā te kaha ake ka angiangi ake ngā pakitara – ka taea te penapena taumaha mā te 20-25% neke atu i te 304.
- Ngā wā arahi whakataetae: 25-35 ngā rā mō te ERW, 35-50 ngā rā mō te EFW/LSAW.
- Tiwhikete Ao: ISO 9001, PED (CE), EN 10204 Momo 3.2.
Ngā Pātai Auau (FAQ) – Paipa Whakarewa ASTM A312 TP304N
Q: He aha te painga o TP304N i te paerewa 304?
A: He 35% teitei ake te kaha whakaputa o te TP304N (275 MPa vs 205 MPa) me te pupuri tonu i te ātete waikura, te ngāwari, me te kaha whakarewa. Mā tēnei ka taea e ngā kaihoahoa te whakamahi i ngā pakitara angiangi mō ngā oko pēhanga me ngā paipa, ka whakaitihia te taumaha mā te 20-25% me te whakaiti i te utu rauemi mō te whakatauranga pēhanga ōrite. Mō ngā tono hanganga, ka taea te whakamahi i ngā rahi wāhanga iti ake.
Q: He nui ake te utu o te TP304N i te 304?
A: He paku noa iho, nā te whakakotahitanga o te hauota me te kaha ake o te whakahaere i te hanganga. Heoi, ko te penapena taumaha (20-25% te angiangi o ngā pakitara) ka hua ake he iti ake te utu rauemi katoa mō ngā tono pupuri-pēhanga. Mō ngā tono hanganga e tino nui ana te kaha, ka taea e te whakaiti i te taumaha te whakakore i te utu wae teitei ake.
Q: Ka taea te whakarewa i te TP304N me te kore e ngaro te hauota?
A: Āe, me ngā tawhā whakarewa tika (te iti o te wera whakauru, ≤ 1.8 kJ/mm) me te konganuku whakakī tika (ER308, ER304N rānei). Ko te hauota e puritia ana i roto i te konganuku whakarewa he 80-90% o te konganuku turanga. Ka whakamahia e te tukanga ERW a Womic te whakarewa auau-teitei kua arotauhia e whakaiti ana i te ngaronga hauota. Mō ngā tono nui, ka whakahokia mai e te whakamahana otinga i muri i te whakarewa te tohatoha hauota.
Q: Me whakamahana te TP304N i muri i te whakarewatanga?
A: Me whakamahana te ASTM A312 mō ngā paipa whakarewa. Mō te TP304N, me whakamahana te wai i te 1040-1120°C me te tinei wai hei whakarewa i ngā nitrides i puta i te wā whakarewa, hei whakahoki mai i te ātete waikura me ngā āhuatanga hangarau katoa. Ka mahi a Womic i te whakamahana i runga i ngā paipa whakarewa TP304N katoa.
P: He pai te TP304N mō te ratonga wai moana?
A: Kāore i te tūtohutia. He rite te ātete o te TP304N ki te 304 (PREN ≈ 19-20). Mō te wai moana, mō ngā taiao nui-hauora rānei, whakamahia te 316N (me te Mo) me te maitai kore waikura takirua rānei. Ko te TP304N mō ngā tono e hiahia ana kia kaha ake i roto i ngā taiao kore-hauora, iti-hauora rānei.
P: He aha te ahotea whakaaetia mō TP304N i roto i te ASME Wāhanga VIII?
A: I te pāmahana rūma, ko te ahotea whakaaetia mō TP304N he tata ki te 137 MPa (20,000 psi) ki te 115 MPa (16,700 psi) mō te 304 – tata ki te 19% teitei ake. Ko ngā uara tuturu e whakawhirinaki ana ki te pāmahana; tirohia te ASME Wāhanga II, Wāhanga D. Me whakamahi e ngā kaihoahoa ngā uara ahotea whakaaetia tika mō te taumata motuhake.
Q: He aha te wā ārahi noa mō te paipa maitai kore waikura TP304N?
A: 25-35 ngā rā mō te ERW (ngā diameter iti ki te waenga), 35-50 ngā rā mō te EFW/LSAW (ngā diameter nui). He paerewa te TP304N mō te maha o ngā mira, nō reira he rite ngā wā arahi ki te 304.
Q: Ka taea te whakamahi i te TP304N mō te mahi pāmahana teitei (neke atu i te 500°C)?
A: He pai ake te kaha o te TP304N i te pāmahana teitei i te 304 nā te mea he kaha ake te hauota totoka. Heoi, mō te mahi roa i runga ake i te 550°C, he pai ake ngā momo he nui ake te waro (304H) me ngā momo ātete-ngoki (321H, 347H). He pai ake te TP304N mō ngā pāmahana ngawari (< 425°C) ina hiahiatia te kaha.
11. Tohutoro Kaupapa – Ngā Paipa o te Papaaho o Waho Moana me ngā Tautoko Hanganga (Brazil)
Whenua:Brazil (Campos Basin, tahataha o Rio de Janeiro)
Paerewa me te Taumata:ASTM A312 TP304N (whakarewa)
Ngā Ahu me te Rahinga:
- OD 219.1mm (8″) × Rārangi 10S (3.76mm WT) – 1,200 mita (tata ki te 28 tāne) – Tukanga EFW
- OD 168.3mm (6″) × Rārangi 10S (3.40mm WT) – 1,800 mita (tata ki te 22 tāne) – Tukanga ERW
- OD 114.3mm (4″) × Rārangi 10S (3.05mm WT) – 2,500 mita (tata ki te 20 tāne) – Tukanga ERW
- OD 60.3mm (2″) × Rārangi 10S (2.77mm te taumaha) – 3,000 mita (tata ki te 12 tāne) – Tukanga ERW
- OD 406.4mm (16″) × Rārangi 10S (4.78mm WT) – 300 mita (tata ki te 12 tāne) – Tukanga EFW (pou hanganga)
Tapeke:8,800 mita (8.8 kiromita), tata ki te 94 tāne
Ngā Whakatakotoranga:He otinga ASTM A312 TP304N kua whakamahanahia, kua whakamākūkūhia, he pito kua whakapikohia. He whakamātautau waipū. 100% UT mō ngā paipa EFW, he au hurihuri mō te ERW. PMI i runga i ia paipa. He whakamātautau kume (hua ≥ 275 MPa, kua tutuki i te 310-340 MPa; kume ≥ 550 MPa, kua tutuki i te 580-620 MPa). He pānga charpy i te -20°C (iti rawa 27J, kua tutuki i te 100-150J). He whakamātautau waikura ā-ira e ai ki te ASTM A262 Practice E (paahi). He tirotiro tuatoru nā DNV Brazil.
Taupānga:Ngā paipa tukatuka o runga me ngā tautoko hanganga mō tētahi papa whakaputa moana i te rohe o Campos. I whakaputahia e ngā kakau paipa tukatuka te wai me te hau pēhanga iti i te 50-80°C me te iti o te ihirangi hauota (wai i tukatukahia). Ko ngā tautoko hanganga mō ngā paheke taputapu me ngā whata paipa. I hiahiatia he whakaiti taumaha mō te papa hei whakaroa i tōna roanga mahi (ngā āwangawanga mō te ngenge). I tīpakohia a TP304N nā te mea he 35% teitei ake te kaha whakaputa, ka taea ai te angiangi ake o ngā pakitara (Whakaritenga 10S hei utu mō te Whakaritenga 40S) mō ngā paipa me ngā mema hanganga.
Horopaki Hangarau:I hangaia tuatahitia te papaaho mō ngā paipa 304. Mā te whakapai ake ki te TP304N me te whakaiti i te matotoru o te pakitara mai i te Wāhanga 40S (4.55-8.18mm) ki te Wāhanga 10S (2.77-4.78mm), i tutuki i te tīma hangarau te whakahekenga taumaha 45% mō ngā paipa me te whakahekenga taumaha 30% mō ngā tautoko hanganga – te penapena taumaha katoa o te 35 tana (27% o te taumaha taketake). Nā tēnei i taea ai e te papaaho te noho tonu i roto i tana tahua taumaha o runga.
Ngā Wero Hangarau me ngā Otinga:
- Te whakaiti i te taumaha me te kore e whakaiti i te whakatauranga pēhanga– Nā te kaha whakaputa teitei ake o TP304N i taea ai te hanga pakitara angiangi ake e ai ki te ASME B31.3. Mō ngā paipa 8″, i whakakapia e te Wāhanga 10S (3.76mm) te Wāhanga 40S (8.18mm), ā, i whakaitihia te taumaha mā te 54%. I whakaratohia e Womic ngā pūrongo tiwhikete ā-ahu me ngā whakamātautau pēhanga. I paahitia te whakamātautau waipū i te 3.0 MPa (pēhanga hoahoa 1.8 MPa, pēhanga whakamātautau 2.7 MPa).
- Te whakataurite i te kaha o te whakarewa whakarewa– Me rite te kaha o te konganuku whakarewa ERW me te EFW ki te konganuku turanga. I arotauhia ngā tawhā ERW a Womic kia eke ki te pai o te hononga whakarewa o te 95% (kaha kume 560 MPa vs turanga 590 MPa). I eke te pai o te hononga ki te 100% o ngā whakarewa EFW e whakamahi ana i te whakakī ER308. I paahitia ngā whakamātautau kume whakarewa katoa.
- Ātete ki te waikura i te matotoru o te pakitara kua whakaitihia– He iti ake te waikura mō ngā pakitara angiangi. He iti te hauota (< 50 ppm) te wai e puta mai ana, ā, he pH 6.5-7.5, nō reira he iti te tere waikura. He pai ake te ātete o te TP304N ki te pakaru i te 304 nā te hauota. I whakahaerehia e Womic te whakamātautau pakaru ASTM G48 (24h i te 22°C) – kāore he pakaru. I whakaaetia te kiritaki.
- Te hoahoa tautoko hanganga mā te whakamahi i te TP304N– I whakamahia e ngā pou hanganga 16″ te Āpitihanga 10S (4.78mm) hei utu mō te Āpitihanga 40S (9.53mm). I whakaūhia e te tātari huānga mutunga kore (FEA) ko te pakitara angiangi me te kaha tuku teitei ake o TP304N i whakarato i te kaha kawenga ōrite. I whakaratohia e Womic te manawanui tika ≤ 0.15% mō te pumau o te pou.
- Te tukanga whakarewa mara mō te TP304N– I hiahiatia te tīma tiaki papaaho ki te whakarerekē i ngā paipa i te wā tāutanga. I whakaratohia e Womic te WPS mā te whakamahi i te GTAW me te whakakī ER308, te whakaurunga wera ≤ 1.8 kJ/mm, te whakawhiti ≤ 150°C. 20 ngā tīkitipati whakarewa i paahitia te RT, PT, me te whakamātautau kume.
- Ngā mahi whakahaere ki te rohe o Campos– I tukuna ngā paipa mai i Shanghai ki Rio de Janeiro, kātahi ki te papaaho tai moana mā te kaipuke tuku taonga. I tirotirohia e DNV ngā paipa i te wā e utaina ana. I tukuna katoatia ngā 94 tana i roto i ngā tuku e rua i roto i te 5 wiki.
Hua:I tāutahia ngā paipa o runga o te papaaho me ngā tautoko hanganga i te hauwhā tuarua o te tau 2024. Nā te penapena taumaha o te 35 tana i taea ai e te papaaho te tutuki i tōna taumata taumaha o runga me te kore e hiahiatia he whakapakari hanganga. I muri i te 12 marama o te mahi, kāore i kitea he waikura, he pakaru whakarewa rānei i te tirotiro. Kei te whakamahere te kaiwhakahaere ki te whakamahi i te TP304N mō ngā whakapainga papaaho a meake nei hei whakaiti i te taumaha me te whakaroa i te roa o te ora o te rawa. He kaiwhakarato whai tohu a Womic Steel mō ngā hiahia paipa kowiri tira a tēnei kaiwhakahaere.
Whakapā mai:
Paetukutuku: www.womicsteel.com
Ī-mēra: sales@womicsteel.com
Waea / WhatsApp / WeChat:
Wikitōria: +86 15575100681
Hēki: +86 18390957568
Womic Steel – Tō hoa pono mō ngā paipa maitai kore waikura ASTM A312 TP304N kua whakarewaina mō ngā oko pēhanga, ngā papaaho moana, ngā tono hanganga, me ngā pūnaha matū pēhanga teitei puta noa i te ao.
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