ASTM A234 Fa'aumi U'u Paipa
Fa'ailoa:
I le lalolagi o paipa u'amea, e tasi lava faaupuga masani e sau soo: paipa uelo umi.O nei paipa e iai sona sao taua i pisinisi eseese ma e tele faamoemoega eseese.
Pipa uelo umi, e lauiloa foi o le paipa uelo sa'o, o se paipa u'amea e faia i le vevela-loloa po'o le malulu-loloa ipu uamea po'o le u'amea fasi uamea.O latou igoa e sau mai le faagasologa o le uelo, lea e tupu i se laina saʻo i le umi o le paipa.O lenei faiga e fa'amautinoa ai le lelei o le uelo fa'atasi ma so'oga fa'amau, puipuia le ga'o ma fa'asilisiliina le atoatoa o le fausaga.
Fa'ainumera Fa'amea ole ASTM A234 WPB & WPC
| Elemene | mataupu, % | |
| ASTM A234 WPB | ASTM A234 WPC | |
| kaponi [C] | ≤0.30 | ≤0.35 |
| Manganese [Mn] | 0.29-1.06 | 0.29-1.06 |
| Phosphorus [P] | ≤0.050 | ≤0.050 |
| Sulfur [S] | ≤0.058 | ≤0.058 |
| Silicon [Si] | ≥0.10 | ≥0.10 |
| Chromium [Cr] | ≤0.40 | ≤0.40 |
| Molybdenum [Mo] | ≤0.15 | ≤0.15 |
| Nikeli [Ni] | ≤0.40 | ≤0.40 |
| Kopa [Cu] | ≤0.40 | ≤0.40 |
| Vanadium [V] | ≤0.08 | ≤0.08 |
*O le Carbon Equivalent [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] e le sili atu i le 0.50 ma e tatau ona lipotia i le NAF.
Meatotino Fa'ainisinia O le ASTM A234 WPB & WPC
| ASTM A234 Vasega | Malosi Tetele, min. | Malosi, min. | Elongation%, min | |||
| ksi | MPa | ksi | MPa | Faaumiumi | Fa'asagatau | |
| WPB | 60 | 415 | 35 | 240 | 22 | 14 |
| WPC | 70 | 485 | 40 | 275 | 22 | 14 |
*1.O paipa WPB ma WPC o lo'o gaosia mai ipu e tatau ona i ai le fa'aumiumi maualalo ole 17%.
*2.Se'i vagana ua mana'omia, e le mana'omia ona fa'ailoaina le tau maaa.
Pipa uelo umi:
Ae o lesi foi itu,paipa uelo sa'oo lo'o gaosia i le fa'aaogaina o metotia fa'apipi'i eseese e pei ole uelo arc po'o le uelo tetee.O nei paipa e masani lava ona faia mai avanoa faʻapipiʻi faʻapipiʻi poʻo faʻapipiʻiina, ona faʻapipiʻiina lea i foliga e manaʻomia.Longitudinal Welded Pipe e ofoina atu le malosi fa'apitoa ma le umi, e fa'amalieina mo fa'aoga tau alamanuia e aofia ai tulaga maualuga o le mamafa po'o ni uta mamafa.
O paipa uelo fa'aumi e faia se fa'agasologa sa'o o le ueloina e fa'amautinoa ai le mafiafia o le puipui tutusa i totonu o le paipa ma ni fa'aletonu laiti.O le mea lea e avea ai i latou ma filifiliga sili ona lelei mo faʻatulagaga faʻatulagaina e pei o le fausiaina, faʻalava ma faʻaputu.
O paipa uelo sa'o, i le isi itu, e eseese foliga ma lapopoa.O la latou gaosiga faʻagasologa e mafai ai ona faʻapitoa, faʻapenaina mo talosaga e manaʻomia ai fua faʻapitoa poʻo mamanu lavelave.E le gata i lea, o paipa uʻu umi e faʻaaogaina lautele i pisinisi e pei o le suauʻu ma le kesi, taʻavale, ma le aerospace ona o lo latou malosi sili atu ma le faʻalavelave.
Tomai fa'apitoa a le Kamupani:
Afai o loʻo e suʻeina mo LSW Pipes faʻalagolago, Cangzhou Spiral Steel Pipe Group Co., Ltd. o se igoa faʻalagolago i le alamanuia.O loʻo i ai i le kamupani 13 laina faʻapitoa faʻapitoa mo paipa uʻamea uʻamea, 4 laina gaosiga mo le faʻafefeteina ma le faʻasaoina o le vevela, ma o loʻo i ai le tekinolosi faʻapolofesa ma meafaigaluega e manaʻomia mo le gaosiga o paipa uʻamea maualuga.
I le faaiuga:
I se aotelega, o paipa uelo sa'o e ofoina atu fa'amanuiaga fa'apitoa e fa'atatau i mana'oga fa'apitoa o lau galuega po'o lau talosaga.O le paipa uelo uumi e tu matilatila mo lona tulaga lelei uelo faifaipea ma le mautu o le fausaga, ae o le Longitudinal Welded Pipe e ofoina atu le fegalegaleai i foliga ma lapopoa.E ala i le malamalama i nei eseesega, e mafai ona e faia se filifiliga atamai pe a filifilia le paipa e sili ona fetaui ma ou manaʻoga.Mo le lelei ma le faʻamaoni, faʻalagolago Cangzhou Spiral Steel Pipe Group Co., Ltd., o se kamupani faʻapitoa i le tulaga lelei i le gaosiga o paipa.
