Ko te paipa maitai waro o te Wāhanga 80 he momo paipa e tohuhia ana e tōna pakitara matotoru atu i ētahi atu wāhanga, pērā i te Wāhanga 40. Ko te "wāhanga" o te paipa e pā ana ki te matotoru o tōna pakitara, e pā ana ki tōna whakatauranga pēhanga me te kaha o te hanganga.
Ngā Āhuatanga Matua o te Paipa Rino Waro o te Hōtaka 80
1. Matotoru o te Pakitara: Matotoru ake i te Wāhanga 40, e whakarato ana i te kaha me te manawanui nui ake.
2. Whakatauranga Pēhanga: He teitei ake te whakatauranga pēhanga nā te matotoru o te pakitara, he pai mō ngā tono pēhanga teitei.
3. Rauemi: He mea hanga ki te maitai waro, he kaha, he pakari hoki, ā, he ātete hoki ki te pakaru me te pakaru.
4. Ngā tono:
Ngā Paipa Ahumahi: E whakamahia ana i roto i ngā ahumahi pēnei i te hinu me te hau, te tukatuka matū, me te whakaputa hiko.
Paipa: He pai mō ngā paipa wai pēhanga teitei.
Hanganga: Whakamahia ai mō ngā mahi hanganga e hiahiatia ana he kaha teitei.
Ngā Whakatakotoranga o te Paipa Rino Waro Āpitihanga 80
| Rahi ingoa | DN | Diameter o waho | Diameter o waho | te matotoru o te hōtaka 80 | |
| Te matotoru o te pakitara | Te matotoru o te pakitara | ||||
| [inihi] | [inihi] | [mm] | [inihi] | [mm] | |
| 1/2 | 15 | 0.84 | 21.3 | 0.147 | 3.73 |
| 3/4 | 20 | 1.05 | 26.7 | 0.154 | 3.91 |
| 1 | 25 | 1.315 | 33.4 | 0.179 | 4.55 |
| 1 1/4 | 32 | 1.66 | 42.2 | 0.191 | 4.85 |
| 1 1/2 | 40 | 1.9 | 48.3 | 0.200 | 5.08 |
| 2 | 50 | 2.375 | 60.3 | 0.218 | 5.54 |
| 2 1/2 | 65 | 2.875 | 73 | 0.276 | 7.01 |
| 3 | 80 | 3.5 | 88.9 | 0.300 | 7.62 |
| 3 1/2 | 90 | 4 | 101.6 | 0.318 | 8.08 |
| 4 | 100 | 4.5 | 114.3 | 0.337 | 8.56 |
| 5 | 125 | 5.563 | 141.3 | 0.375 | 9.52 |
| 6 | 150 | 6.625 | 168.3 | 0.432 | 10.97 |
| 8 | 200 | 8.625 | 219.1 | 0.500 | 12.70 |
| 10 | 250 | 10.75 | 273 | 0.594 | 15.09 |
Rahi: E wātea ana i roto i te whānuitanga o ngā rahi paipa ingoa (NPS), mai i te 1/8 inihi ki te 24 inihi.
Paerewa: E tutuki ana i ngā paerewa maha pērā i te ASTM A53, A106, me te API 5L, e tohu ana i ngā whakaritenga mō ngā rauemi, ngā ine, me te mahi.
Te Hanganga Matū o te Paipa Rino Waro o te Wāhanga 80
Ka whai matotoru kua whakaritea i mua i te Apitihanga 80, ahakoa te momo, te hanganga rānei o te maitai i whakamahia.
| Taumata A | Taumata B | |
| C, mōrahi % | 0.25 | 0.3 |
| Mn, mōrahi % | 0.95 | 1.2 |
| P, ōrau mōrahi | 0.05 | 0.05 |
| S, mōrahi % | 0.045 | 0.045 |
| Kaha kume, min [MPa] | 330 | 415 |
| Kaha tuku, min [MPa] | 205 | 240 |
Paipa Rino Waro Hōtaka 80
Ngā Painga:
Kaha Teitei: Ka whakarei ake te pakari o te hanganga i ngā pakitara matotoru.
Te Pakari: Nā te pakari me te ātete o te maitai waro ki te pakaru ka roa te ora o ēnei paipa.
Ngāwari ki te whakamahi: He pai mō te whānuitanga o ngā mahi me ngā ahumahi.
Ngā ngoikoretanga:
Taumaha: Ka taumaha ake ngā paipa i ngā pakitara matotoru, ā, ka uaua ake pea te hapai me te tāuta.
Utu: He nui ake te utu i ngā paipa angiangi ake ngā pakitara nā te nui haere o ngā rauemi e whakamahia ana.
Wā tuku: Mei-24-2024