Fa'afeso'ota'i matou mo Tala FouFa'aputuga Paipa U'ameaFa'amatalaga ma Fua.
Paipa Uamea Vasega 3 ASTM A252 – Paipa Fa'avae Fa'apipi'i SSAW & LSAW/EFW mo Galuega Faufale i le Gataifale ma Galuega Mamafa
| Tulaga Fa'atonu o Meafaitino | ASTM A252 Vasega 3 |
| Malosiaga o le Tuuina Atu | ≥310 MPa |
| Fua / Tele | Lapo'a i Fafo: 219 mm – 3000 mm (e mafai ona fetu'una'i) |
| Mafiafia o le Puipui | 6 mm – 40 mm (e mafai ona fetu'una'i) |
| Umi | Oloa mo le 6 mita ma le 12 mita; E maua le umi fa'apitoa |
| Ituaiga Paipa / Fa'amau | SSAW (Spiral Submerged Arc Welded) / LSAW (Longitudinal SAW / EFW) |
| Fa'apalepale i Fua | E tusa ai ma le ASTM A252 |
| Fa'amaoniga o le Tulaga Lelei | ISO 9001; O lo'o maua le Lipoti o Su'esu'ega a le SGS / BV mai le Vaega lona Tolu |
| Fa'auma o le Laupapa | Uliuli, Fa'a'ofu'ofu Vevela, Valiina, pe Ufiufi Fa'apitoa |
| Talosaga | Fa'avae o fale, alalaupapa, uafu, fa'ato'aga matagi i le sami ma le gataifale, galuega fa'ainisinia mamafa. |
Fa'amatalaga Fa'atekinolosi
Paipa Uamea ASTM A252Fa'atulagaga Fa'akemikolo
| Elemene | Anotusi (%) |
| Kaponi (C) | 0.26 maualuga |
| Manganese (Mn) | 0.85 – 1.60 |
| Fosforus (P) | 0.04 maualuga |
| Sulfur (S) | 0.05 maualuga |
| Silikoni (Si) | 0.10 – 0.35 |
| Kopa (Cu) | 0.20 – 0.30 (filifiliga mo le tete'e atu i le 'ele) |
Paipa Uamea ASTM A252Meatotino Fa'amekanika
| Meatotino | Manaʻoga / Taua |
| Malosiaga o le Gafatia (Maualalo) | 207 MPa (30 ksi) |
| Malosiaga o le Fetaia'i | 345 – 455 MPa (50-66 ksi) |
| Fa'aloloa (i le 200 mm) | ≥20% |
| Su'ega o le A'afiaga (Charpy V-Notch) | E le fa'amalosia mo lapopo'a uma; filifiliga mo galuega fa'atino i le vevela maualalo po'o galuega fa'atino i fafo |
| Faigata | Brinell Masani: 110–180 HB |
| Meatotino | Vasega 1 | Vasega 2 | Vasega 3 |
| Malosiaga Maualalo o le Gaosiga | 30,000 psi (207 MPa) | 35,000 psi (241 MPa) | 45,000 psi (310 MPa) |
| Malosiaga Fa'aitiitia o le Tensile | 50,000 psi (345 MPa) | 60,000 psi (415 MPa) | 66,000 psi (455 MPa) |
| Fa'aumiumi Maualalo (fua 2-inisi) | 18% | 14% | 20% |
| Fa'amatalaga Masani o le Auina Atu i Fafo (Vasega 3 e Sili ona Lauiloa) | |||||
| NPS | OD (mm) | Mafiafia o le Puipui | Mamafa (kg/m) | Faasologa Masani | Talosaga Autu |
| 16" | 406.4 | 0.375" (9.52mm) | 92.5 | Fa'ama'i pipisi (STD) | Nofoaga e tu'u ai uafu, fausiaina lautele |
| 16" | 406.4 | 0.500" (12.70mm) | 121.8 | 40 | Fa'avae o matagi i fafo, poutū o alalaupapa |
| 18" | 457 | 0.500" (12.70mm) | 137.4 | 40 | Fale gaosi oloa mamafa, faavae loloto |
| 24" | 609.6 | 0.500" (12.70mm) | 183.2 | 40 | O pou tetele, fausaga o le gataifale |
| 24" | 609.6 | 0.750" (19.05mm) | 271.8 | XS | Fa'aoga mamafa tele, fa'ata'avaleina o papa |
| 30" | 762 | 0.625" (15.88mm) | 287.5 | 40 | Fa'avae i fafo, fa'avae o le nofoaga e tu'u ai le LNG |
| 36" | 914.4 | 0.750" (19.05mm) | 392.3 | 40 | Galuega tetele, alalaupapa fa'alava i le sami |
| Faiga o le Gaosiga vs. Tomai o le Tele | |||||
| Fa'agasologa | Maualuga OD (mm) | Mamafa Maualuga (mm) | Umi o le Vaitaimi (m) | Fa'aleleia o Tau | Sili mo |
| SSAW (Spiral) | 3200 | 30 | 6-18 | Maualuga | Lapo'a tele, mafiafia feololo o le puipui (16"-48") |
| LSAW (JCOE) | 1422 | 50 | 6-15 | Maualuga | Puipui mafiafia tele (≥1.0"), manaʻoga malosi maualuga |
| ERW | 660 | 25 | 6-12 | Feololo | La'ititi i le lautele feololo, mafiafia masani o puipui |
| Lelei | 1016 | 100 | 6-12 | Maualalo | Fa'aoga taua, siosiomaga fa'aleagaina |
Kiliki le Fa'amau i le itu taumatau
1. Fa'avae o Puipui i le Potu i Lalo:Faavae loloto mo fale maualuluga, falegaosimea, faleteuoloa, fale faapisinisi ma fale nofo ai. Faavae o pou (talafeagai mo ituaiga fale uma).
2. Fa'avae o Pile o le Alalaupapa:Fa'avae e amoina avega mo alalaupapa o alatele, alalaupapa o nofoaafi, ma alalaupapa i totonu o le taulaga. Fa'avae o pou mo alalaupapa o vaitafe, vaituloto, ma alalaupapa e sopo'ia ai le sami.
3. Fausiaina o le Uafu:Fa'avae e amoina ai avega mo nofoaga e tu'u ai uafu, fale va'a, ma fa'avae o le uafu. Meafaigaluega mamafa ma nofoaga e taulima ai uta i le uafu.
4. Galuega Faatino mo le Malosiaga o le Matagi i Fafo ma Galuega Faatino mo Inisinia o le Gataifale:Faavae mo turbine matagi i tai. Fuafuaga lagolago mo fausaga i tai, paipa i tai, taligalu, ma isi mea faapena. Tetee atu i tai, tete'e atu i galu, ma tete'e atu i le 'ele o le sami.
5. Inisinia Sivili Tetele:O faavae loloto ma pou tetele mo galuega tetele fa'ainisinia sivili (e pei o pa, nofoaga i lalo o le eleele, ma ana). Lagolago mo masini fa'apisinisi ma avega fa'avae.
1) Ofisa Lālā - Lagolago i le gagana Sipaniolo, fesoasoani i le kiliaina o tiute, ma isi mea faapena.
2) E silia ma le 5,000 tone o oloa o loʻo iai i le faleoloa, faʻatasi ai ma le tele o lapopoʻa eseese
3) Siakiina e faʻalapotopotoga faʻapitoa e pei o le CCIC, SGS, BV, ma le TUV, faʻatasi ai ma afifiina e talafeagai mo le sami
1. Afifiina:Fusi u'amea mo le faigofie ona taulimaina.
E tuu poloka laupapa po'o fasi laupapa i le va o pou e puipuia ai mai le faaleagaina i le taimi o felauaiga.
Puipuiga o luga (filifiliga): Vali uliuli, suāuu e puipuia ai le ele, po'o ni ta'ai pepa palasitika.
O pou e fa'apipi'i i le u'amea vevela e ono iai se ata puipui le tumau e puipuia ai le maosi o luga.
E maua le afifiina fa'apitoa pe a talosagaina.
2. Tu'uina atu:Umi masani o oloa: 6 mita ma le 12 mita. E maua umi fa'apitoa e fetaui ma mana'oga o lau galuega.
Talafeagai mo felauaiga i le sami, nofoaafi, po'o le auala.
O le taimi e tuʻuina atu ai e masani lava 15-30 aso talu ona faʻamaonia le totogiina, e fuafua i le aofaʻi ma faʻamatalaga auiliili.
E talafeagai mo le auina atu i fafo i le lalolagi atoa, faatasi ai ma se seti atoa o pepa aloaia (tusi faamaonia o asiasiga, lisi o afifiina, pili o uta).
3. Lapataiga i le Taulimaina:Faaaoga se keleni po'o se forklift ua fa'apipi'iina i ai ni slings po'o ni fusi e puipuia ai paipa mai le fa'aleagaina.
Teu i se nofoaga malūlū, mago, ma e lelei le ea e puipuia ai mai le elea a'o le'i fa'apipi'iina.
Mo uta tetele/mamafa tele, fa'amolemole usita'i i tulafono o felauaiga a le lotoifale.
1. O le ā lePipa u'amea ASTM A252 Vasega 3?
O paipa u'amea ASTM A252 vasega 3 o paipa u'amea fa'apipi'i ua fa'apipi'iina mo le fa'aaogaina o se lagolago loloto i lalo o fale, alalaupapa, uafu, ma inisinia i tai. E lua faiga fa'apipi'i mo nei paipa: paipa fa'apipi'i uamea i lalo o le eleele (SSAW) po'o le paipa fa'apipi'i uamea i lalo o le eleele (LSAW/EFW).
2. O a lapopo'a ma umi o lo'o maua?
Lapo'a i fafo: 219 mm - 3000 mm (e maua le lapo'a XXL/lapo'a tele) Mafiafia o puipui: 6-40 mm. O umi masani o lo'o iai e 6 mita ma le 12 mita, ma e mafai ona tu'uina atu ni umi fa'apitoa pe a talosagaina.
3. O a tulaga fa'atonuina o meafaitino ma meatotino fa'ainisinia?
Tulaga Fa'atonu o Meafaitino: ASTM A252 Vasega 3
Malosiaga o le Gafatia: ≥345 MPa
Malosiaga o le tensile: 455~620 MPa
Fa'aloloa: ≥20%%
4. E mafai ona ou maua ni lipoti o le tusipasi lelei ma asiasiga?
Ioe, o paipa u'amea uma ua fa'amaonia e le ISO 9001. O pepa uma e mana'omia e aofia ai lipoti a isi vaega mai le SGS, BV po'o se isi fa'alapotopotoga aloa'ia.
5. E fa'apefea ona fa'aputuina paipa u'amea?
E fusifusia ai paipa u'amea i se fusi u'amea ma vavae'ese i se poloka laupapa e aunoa ma le fa'aleagaina. E fautuaina ni ufiufi/afifi puipui po'o ni togafitiga i luga ua ta'ua i luga e tusa ai ma le afifiina o le la'uina. E maua afifi fa'apitoa.
6. O le a le taimi e tuʻuina atu ai?
Taimi o felauaiga: 15-30 aso talu ona faʻamaonia le poloaiga (e faʻalagolago i le aofaʻi, faʻamatalaga ma le taunuuga).
7. E mafai ona faia ni lapopo'a fa'apitoa?
Ioe, o le lautele, le mafiafia o le puipui e mafai ona faʻapitoa e tusa ai ma manaʻoga patino a le tagata faʻatau.
Fa'amatalaga Fa'afeso'ota'i
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