JIS G 3452He paerewa Hapanihi e tohu ana i te paipa maitai waro kua whakarewaina mō te kawe i te mamaoa, te wai, te hinu, te hau, te hau, me ētahi atu i ngā pēhanga mahi iti. Kotahi anake te momo o te JIS G 3452, ko te SGP, ka taea te hanga mā te whakarewa ātete (ERW) me te whakarewa pūmau rānei.
JIS G 3452 Me hanga ngā paipa rino mā te whakamahi i tētahi huinga tika o ngā tikanga hanga paipa me ngā tikanga whakaoti.
| Tohu o te taumata | Tohu o te tukanga hanga | Te whakarōpūtanga o te paninga konutea | |
| Te tukanga hanga paipa | Tikanga whakaoti | ||
| SGP | Ātete hiko whakarewa: E Whakarewahia te turanga: B | Kua oti te wera: H Kua oti te whakamatao: C I te mea he ātete hiko kua whakapirihia: G | Ngā paipa pango: ngā paipa kāore i pania ki te konutea Ngā paipa mā: ngā paipa kua pania ki te konutea |
Ko te tikanga, me tuku ngā paipa i te āhua i hangaia ai. Me whakamahana ngā paipa kua oti te whakamatao i muri i te hanganga.
Mena ka hangaia te paipa mā te ERW, me tango ngā whakapiringa o te mata o roto, o waho hoki o te paipa kia maeneene ai te whakapiringa i te āhua o te paipa.
Mena ka whakawhāitihia nā te whānui o te paipa, nā ngā taputapu rānei, e kore e taea te tango i te whakarewa o te mata o roto.
Te Whakarite: I mua i te whakakākahu wera, me horoi pai te mata o te paipa maitai mā te pupuhi onepu, te whakapūkara, me ētahi atu.
Matotoru: Mō te paninga konutea, me whakamahi te konutea whakarewa kua tohua i roto i te JIS H 2107, te konutea rānei he rite te kounga ki tēnei.
Ētahi atu: Ko ētahi atu whakaritenga whānui mō te whakapūmau he rite ki te JIS H 8641.
Whakamātautau: Te ine i te ōritetanga o te paninga piauau e ai ki te JIS H 0401 Tuhinga 6.
Haunga ngā huānga kua hoatu, ka taea te tāpiri atu i ētahi atu huānga whakarewa inā hiahiatia.
| Tohu o te māka | P (Pūhāota) | S (Whānariki) |
| SGP | mōrahi 0.040 % | mōrahi 0.040 % |
He iti ake ngā herenga matū o te JIS G 3452 nā te mea e whakamahia whānuitia ana te JIS G 3452 mō ngā mahi whānui pēnei i te kawe i te mamaoa, te wai, te hinu, me te hau māori. Ehara i te mea ko te hanganga matū o te rauemi te mea nui, engari ko ngā āhuatanga ā-pūkaha o te paipa hei tū atu i te pēhanga mahi.
Ngā Āhuatanga Kume
| Tohu o te māka | Te kaha o te kume | Te roa, iti rawa, % | ||||||
| Wāhanga whakamātautau | Whakamātautau te ahunga | Matotoru o te pakitara, mm | ||||||
| N/mm² (MPA) | ＞3 ≤ 4 | ＞4 ≤ 5 | ＞5 ≤ 6 | ＞6 ≤ 7 | ＞7 | |||
| SGP | 290 meneti | Nama 11 | Whakarara ki te tuaka paipa | 30 | 30 | 30 | 30 | 30 |
| Nama 12 | Whakarara ki te tuaka paipa | 24 | 26 | 27 | 28 | 30 | ||
| Nama 5 | Poutū ki te tuaka paipa | 19 | 20 | 22 | 24 | 25 | ||
Mō ngā paipa he 32A te whānui ingoa, iti iho rānei, kāore e pā ngā uara whakaroa o tēnei ripanga, ahakoa me tuhi ngā hua o ā rātou whakamātautau whakaroa. I tēnei wā, ka taea te whakamahi i te whakaritenga whakaroa i whakaaetia i waenganui i te kaihoko me te kaihanga.
Te Whakapapatahi i te Taonga
Whānuitanga: Mō ngā ngongo he nui ake te diameter ingoa i te 50A (2B).
Kāore he pakaru ina papatahitia te ngongo ki te 2/3 o te diameter o waho o te ngongo.
Āheitanga Piko
Whānuitanga: Mō ngā ngongo maitai he diameter ingoa ≤ 50A (2B).
Pikohia te tauira ki te 90° me te radius o roto e ono ngā whakarea o te diameter o waho o te paipa, me te kore e puta he pakaru.
Me whai whakamātautau pēhanga waipū, whakamātautau kore-whakangaro rānei ia paipa rino.
Whakamātautau Waipūmau
Pēhanga: 2.5 MPa;
Wā: Puritia mō te iti rawa 5 hēkona;
Whakawa: te paipa maitai i raro i te pēhanga, kāore he turuturu.
Whakamātautau Kore-Whakangaro
Ka whakamahia te whakamātautau ultrasonic kua tohua i roto i te JIS G 0582. Tērā pea he kino rawa atu te taumata whakamātautau i te Kāwai UE.
Ka whakamahia te whakamātautau iahiko hurihuri kua tohua i roto i te JIS G 0583. Tērā pea he kino rawa atu te taumata whakamātautau i te Kāwai EZ.
Mō ngā paipa he whānui ingoa ≥ 350A (14B), tatauhia te whānui mā te ine i te porowhita, ā, i tēnei wā, ko te manawanui he ± 0.5%.
Momo pito paipa mō te DN≤300A/12B: pito miro, pito papatahi rānei.
Momo pito paipa mō te DN≤350A/14B: pito papatahi.
Mena he pito piko te hiahia o te kaihoko, ko te koki o te piko he 30-35°, ko te whānui piko o te taha o te paipa maitai: 2.4mm te mōrahi.
He rite tonu ngā āhuatanga o JIS G 3452 kiASTM A53meGB/T 3091, ā, ko ngā rauemi paipa kua tohua i roto i ēnei paerewa he ōrite te mahi me te whakamahinga.
Mai i tōna whakatūnga i te tau 2014, kua noho a Botop Steel hei kaiwhakarato matua o ngā paipa maitai waro i te raki o Haina, e mōhiotia ana mō te ratonga pai rawa atu, ngā hua kounga teitei, me ngā otinga whānui.
He maha ngā momo paipa rino waro me ngā hua e pā ana ki tēnei kamupene, tae atu ki ngā paipa rino kore-tuia, ERW, LSAW, me SSAW, me te whānuitanga katoa o ngā hononga paipa me ngā flanges. Kei roto hoki i āna hua motuhake ngā koranu kounga teitei me ngā rino kowiri tira austenitic, i hangaia kia tutuki ai ngā hiahia o ngā kaupapa paipa rerekē.
Whakapā mai, kua rite te tīma ngaio ki te whakarato ratonga me ngā otinga kounga ki a koe, me te tumanako ki te whakatutuki i tētahi mahi tahi pai ki a koe, me te whakatuwhera tahi i tētahi upoko hou o te angitu.
