Paipa Uila Uila Fa'ata'amilo Mo le Malosi e le Mafaatusalia ma Fa'alelei ASTM A252
Fa'ailoa:
A o'o mai ile atina'eina o atina'e, o faiga o paipa ose vaega taua lea e taua tele i pisinisi eseese.O le faʻaaogaina o mea ma metotia saʻo i le fausiaina o paipa e mautinoa ai le tumau, malosi ma le faʻamaoni, mapaipa u'amea fa'ameamea ASTM A252o lo'o taulamua i lenei fa'agasologa fa'atekonolosi.I totonu o lenei blog, o le a tatou vaʻavaʻai totoʻa i uiga faʻapitoa ma faʻamanuiaga o nei paipa mataʻina ua avea ma mea faʻapitoa i galuega faufale faʻaonapo nei.
O Meatotino Fa'ainisinia ole paipa SSAW
| vasega uamea | malosi fua maualalo | aupito maualalo le malosi Tensile | Laiti Fa'aumiumi |
| B | 245 | 415 | 23 |
| X42 | 290 | 415 | 23 |
| X46 | 320 | 435 | 22 |
| X52 | 360 | 460 | 21 |
| X56 | 390 | 490 | 19 |
| X60 | 415 | 520 | 18 |
| X65 | 450 | 535 | 18 |
| X70 | 485 | 570 | 17 |
Le Tulaga Fa'a-Kemikolo O Paipa SSAW
| vasega uamea | C | Mn | P | S | V+Nb+Ti |
| Max% | Max% | Max% | Max% | Max% | |
| B | 0.26 | 1.2 | 0.03 | 0.03 | 0.15 |
| X42 | 0.26 | 1.3 | 0.03 | 0.03 | 0.15 |
| X46 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X52 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X56 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X60 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X65 | 0.26 | 1.45 | 0.03 | 0.03 | 0.15 |
| X70 | 0.26 | 1.65 | 0.03 | 0.03 | 0.15 |
Le Fa'apalepale Geometric O Paipa SSAW
| Fa'apalepale fa'atusa | ||||||||||
| lautele i fafo | Mafiafia puipui | sa'o | fafo-o-lapotopoto | misa | Maualuluga maualuga lopa uelo | |||||
| D | T | |||||||||
| ≤1422mm | 1422mm | <15mm | ≥15mm | pito paipa 1.5m | umi atoa | tino paipa | pito paipa | T≤13mm | T>13mm | |
| ±0.5% | e pei ona malilie i ai | ±10% | ±1.5mm | 3.2mm | 0.2% L | 0.020D | 0.015D | '+10% | 3.5mm | 4.8mm |
Su'ega Hydrostatic
Malosi e le mafaatusalia ma le tumau:
ASTM A252paipa u'amea fa'ameameae faia i u'amea maualuga e fetaui ma fa'ata'ita'iga ASTM A252.O le tulaga masani e faʻamaonia ai le malosi sili ma le tumau o paipa, e faʻaogaina ai mo le tele o faʻaoga e aofia ai le suauʻu ma le kesi, faʻapipiʻi faʻavae ma vai.O uelo fa'apipi'i e fa'atuputeleina ai le malosi ma le tete'e o paipa i malosiaga i fafo, fa'amautinoa e mafai ona latou tatalia si'osi'omaga maualuga ma tulaga leaga o le tau.
Lelei sili ona lelei ma le tau-lelei:
O se tasi o faʻamanuiaga muamua o le ASTM A252 spiral uʻamea paipa uʻamea o lona lelei sili atu i le faʻapipiʻiina ma le faʻaogaina.O lona fa'ata'ita'iga fa'ata'amilo e faigofie ona feavea'i ma taulima ona o lona mamafa mama pe a fa'atusatusa i isi mea paipa.E le gata i lea, o le fetuutuunai o nei paipa e faafaigofie ai le punou, faʻaitiitia ai manaʻoga mo mea faʻapipiʻi ma sooga.E le gata o lenei mea e faʻasaoina ai le taimi, e faʻaitiitia ai foi tau faʻapipiʻi, ma avea ai lenei ituaiga o ductwork o se fofo taugofie mo galuega eseese.
Fa'aleleia le fa'a'ele'ele:
O le pala ose fa'afitauli tele i faiga paipa, aemaise lava i fale gaosi oloa e fa'atautaia vaila'au ma mea e pala.Ole tulaga ole ASTM A252 e fa'amautinoa ai o paipa u'amea u'amea e fa'aalia ai le lelei tele o le tete'e.O nei paipa o loʻo i ai ni ufiufi puipui e pei o le epoxy poʻo le zinc e fai ma pa puipui i mea faʻaleagaina, faʻalauteleina o latou ola tautua ma faʻaitiitia tau o le tausiga.O lenei vaega e sili ona aoga i lalo o le eleele poʻo fafo o loʻo faʻaogaina paipa i tulaga leaga o le siosiomaga.
Sili atu le gafatia e ave ai:
O le isi uiga taua o le ASTM A252 spiral u'umea paipa uʻamea o lona tulaga lelei tele amo tauave.Fa'atekonolosi fa'apipi'i fa'aogaina i le gaosiga o le gaosiga e fa'aleleia ai le malosi o le paipa ma le gafatia e fa'asaga i uta mamafa.Pe faʻaaogaina i le fausiaina o alalaupapa, faʻavae faʻavae poʻo paipa lalo, o nei paipa e maua ai le faʻamaoni sili atu, faʻaitiitia le lamatiaga o le toilalo ma faʻamautinoa le saogalemu umi o le tele o galuega tetele.
Siosiomaga tumau:
I se vaitau ua avea le puipuiga o le siosiomaga ma popolega i le lalolagi atoa, o le filifilia o mea faufale sa'o e taua tele.O le paipa u'amea fa'apipi'i fa'apipi'i ASTM A252 o lo'o fa'atumauina faiga faufale gafataulimaina ona o lona umi ma toe fa'aaogaina.O paipa e umi le auaunaga ma e mafai ona faigofie ona toe faʻaaogaina i le faaiuga o lo latou olaga, faʻaitiitia le manaʻomia mo le faʻaaogaina o mea fou ae faʻaitiitia otaota ma carbon emissions.
I le faaiuga:
O le paipa u'amea fa'apipi'i fa'apipi'i ASTM A252 ua toe fa'afouina le pisinisi paipa ma lona malosi maualuga, tumau ma le tau-lelei.O nei paipa e fetaui pe sili atu i tulaga o alamanuia, ma avea ai i latou ma filifiliga muamua i le tele o alamanuia.O lona tulaga lelei tele e tauave ai le mamafa ma le fa'a'ele'ele e fa'amautinoa ai le atina'e gafataulimaina o atina'e tetele ma saofagā i le si'itia o pisinisi a le lalolagi.O le fa'aogaina o nei paipa, o galuega faufale e mafai ona fa'asilisiliina le lelei, fa'aitiitia tau ma fa'amautinoa le fa'atuatuaina umi a'o fa'atumauina le fa'atumauina o le si'osi'omaga.
