He maha ngā āhua me ngā rahi o ngā paipa rino. Ko ngā paipa tuitui he kōwhiringa kāore i te whakarewahia, he mea hanga ki te maitai kua pokaia. Mō ngā paipa rino whakarewahia, e toru ngā kōwhiringa: ERW, LSAW me SSAW.
He mea hanga ngā paipa ERW ki ngā pereti maitai ātete-whakapiripiri. He mea hanga te paipa LSAW ki ngā pereti maitai whakapiripiri pewa roa-uru-pō. He mea hanga te paipa SSAW ki ngā pereti maitai whakapiripiri pewa porowhita-uru-pō.
Kia tirohia tata atu ia momo paipa, whakatairitehia ō rātou rerekētanga, me pēhea hoki te whakamahi i te whakaahuatanga tika hei tono.
Ngongo maitai kore-tuitui
He mea hanga te ngongo tuitui ki te maitai kore waikura, ka whakamahanahia, ka pokaia kia puta he porowhita tuwhera. Nā te mea kāore he wāhi whakarewa o te paipa tuitui, e kiia ana he kaha ake i te paipa whakarewa, ā, he iti ake te tūponotanga ki te waikura, te horo me te pakaru whānui.
Heoi, ko te utu mō ia tana o te paipa tui kore he 25-40% teitei ake i te utu mō te paipa ERW. Ko te rahi o ngā paipa maitai tui kore kei waenga i te 1/8 inihi ki te 36 inihi.
Paipa whakarewa ātete (ERW)
Ka hangaia te paipa maitai ERW (whakarewa ātete) mā te hurihuri i te maitai ki roto i te paipa, ka hono i ngā pito e rua ki ngā irahiko parahi e rua. He rite te āhua o ēnei irahiko ki te kōpae, ā, ka huri i te wā e haere ana te rauemi i waenganui i a rāua. Mā tēnei ka taea e te irahiko te pupuri i te pa tonu ki te rauemi mō te wā roa o te whakarewa tonu. Kei te whakapai tonu te ahunga whakamua o te hangarau whakarewa i tēnei tukanga.
He paipa ERW hei whakakapi mō te paipa rino kore hononga, he pai ake hoki te pakari i te paipa SAW. Ki te whakatauritea ki te tukanga whakarewa e whakamahia ana i roto i ngā paipa whakarewa pewa i raro i te wai, kāore pea e puta he hapa, ā, ka taea te kite ngāwari i ngā hapa whakarewa tika mā te whakaata ultrasonic, mā te tirohanga rānei.
Ko te whānui o ngā paipa ERW kei waenga i te inihi (15 mm) ki te 24 inihi (21.34 mm).
Paipa whakarewa pewa i rukuhia ki raro
Ko te LSAW (whakarewa hononga tika) me te SSAW (whakarewa hononga porowhita) he momo paipa whakarewa pewa ruku. Mā te tukanga whakarewa pewa ruku ka puta he kiato iahiko teitei hei ārai i te tere o te marara o te wera o te paparanga rere, ā, ka kukū ki te wāhi whakarewa.
Ko te rerekētanga matua i waenga i ngā paipa LSAW me SSAW ko te ahunga o te whakarewa, ka pā ki te kaha pupuri pēhanga me te ngāwari o te hanga. Ka whakamahia te LSAW mō ngā tono ngaohiko-waenga ki te ngaohiko-tiketike, ā, ka whakamahia te SSAW mō ngā tono ngaohiko-iti. He nui ake te utu o ngā paipa LSAW i ngā paipa SSAW.
Paipa whakarewa pewa whakaroa
Ka hangaia ngā paipa LSAW mā te hanga i te pokepokea maitai koiri wera hei rango, ā, ka honoa ngā pito e rua mā te whakarewa raina. Ka hangaia he paipa whakarewa roa. Ko te nuinga o ēnei paipa ka whakamahia mō ngā paipa tuku tawhiti o te hinu, te hau māori, te waro wai, ngā warowaihā, me ētahi atu.
E rua ngā momo paipa LSAW: te hononga roa kotahi me te hononga takirua (DSAW). E whakataetae ana te paipa maitai LSAW ki te paipa maitai kore hononga me te paipa maitai ERW 16 ki te 24 inihi. I roto i te umanga hinu me te hau māori, ka whakamahia ngā paipa LSAW API 5L whānui-rahi mō te kawe tawhiti me te kawe pai o ngā warowaihā.
Ko te whānui o te paipa LAW kei waenga i te 16 inihi me te 60 inihi (406 mm me te 1500 mm).
Kore-tūhono - ngā toenga pahū o te pakanga - te whakarewa pewa ruku roa - te whakarewa pewa ruku porowhita - te paipa - te whakarewa pewa ruku porowhita
Paipa SSAW
Ka hangaia te paipa maitai SSAW mā te hurihuri me te whakarewa i te rīpene maitai i te taha porowhita, i te taha porowhita rānei, kia huri ai te whakarewa hei porowhita. Mā te tukanga whakarewa porowhita ka taea te hanga hua whānui. Ko te nuinga o ngā paipa maitai porowhita e whakamahia ana mō te tuku wai pēhanga iti, pērā i ngā paipa i ngā papaaho moana, ngā whare hanga hinu, ngā wāhi hanga kaipuke rānei, tae atu ki ngā whare ā-iwi me ngā poupou.
Ko te whānui o ngā paipa o te SSAW he 20 inihi ki te 100 inihi (406 mm ki te 25040 mm).
Me pēhea te tono i ngā paipa maitai mō tō kaupapa
I te tono paipa rino, e rua ngā ine matua: te rahi paipa ingoa (NPS) me te matotoru o te pakitara (te wātaka). Mō ngā paipa iti iho i te 4 inihi, ka taea te roa o te paipa kia kotahi te matapōkere (SRL) 5-7 mita, mō ngā paipa neke atu i te 4 inihi, ka taea te roa o te paipa kia takirua te matapōkere (DRL) 11-13 mita. Kei te wātea ngā roa ritenga mō ngā paipa roa. Ka taea te pito o ngā paipa te piko (be), te papa (pe), te miro (THD) te miro me te hononga (T&C) te awaawa rānei.
Whakarāpopototanga o ngā taipitopito ota noa:
Momo (kore hononga, he mea whakarewa rānei)
Rahi paipa ingoa
Rārangi Mahi
Momo mutunga
Te taumata rauemi
Te rahinga i roto i ngā mita, i ngā putu, i ngā tāne rānei.
Ki te mea kei te whakaaro koe ki te hoko i te SEAMLESS PAIPA, te ERW PAIPA, te SSAW PAIPA, te LSAW PAIPA rānei, tirohia ngā kōwhiringa a JINDALAI māu, ā, whakaarohia te whakapā atu ki tā mātou tīma mō ētahi atu kōrero. Ka hoatu e mātou te otinga pai rawa atu mō tō kaupapa.
Whakapā mai inaianei!
WAEA/WECHAT: +86 18864971774 WHATSAPP:https://wa.me/8618864971774Īmēra:jindalaisteel@gmail.comPaetukutuku:www.jindalaisteel.com.
Wā tuku: Paenga-whāwhā-04-2023
