API 5L gbogbogbo tọka si paipu laini-piipu laini API 5L, paipu laini ni lati gbe epo, nya si ati omi ti a fa jade lati ilẹ si awọn ile-iṣẹ ile-iṣẹ epo ati gaasi nipasẹ paipu laini.Paipu ila naa pẹlu paipu ti ko ni iran ati paipu irin welded.Awọn ipari ni awọn opin alapin, awọn ipari ti o tẹle ara ati awọn opin iho;awọn ọna asopọ ti wa ni alurinmorin, pọ asopọ, socket asopọ, ati be be lo.
| PSL | Ipo Ifijiṣẹ | Ipele paipu |
| PSL1 | Bi-yiyi, deede, normalizing akoso | A |
| Bi yiyi, deede yiyi, thermomechanical yiyi, thermo-mechanical akoso, normalizing akoso, deede, deede ati tempered tabi ti o ba gba Q&T SMLS nikan | B | |
| Bi-yiyi, deede ti yiyi, thermomechanical yiyi, thermo-mechanical akoso, normalizing akoso, deede, deede ati tempered | X42, X46, X52, X56, X60, X65, X70 | |
| PSL 2 | Bi-yiyi | BR, X42R |
| Normalizing ti yiyi, normalizing akoso, deede tabi deede ati tempered | BN, X42N, X46N, X52N, X56N, X60N | |
| Parun ati ibinu | BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q | |
| Thermomechanical yiyi tabi thermomechanical akoso | BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M | |
| Thermomechanical yiyi | X90M, X100M, X120M | |
| O to (R, N, Q tabi M) fun awọn onipò PSL2, jẹ ti iwọn irin |
1. Ilana iṣelọpọ akọkọ ti paipu irin ti ko ni iyipo ti o gbona (ilana ayẹwo akọkọ):
Igbaradi òfo Tube ati ayewo → alapapo òfo tube → lilu → sẹsẹ tube → irin atunṣe → ti o wa titi (dinku) iwọn ila opin → itọju igbona △ → pipe tube titọ → ipari → ayewo (ti kii ṣe iparun, ti ara ati kemikali, ayewo Taiwan) → ile itaja
2. Awọn ifilelẹ ti awọn gbóògì ilana ti tutu-yiyi (kale) seamless, irin oniho:
Igbaradi Billet → pickling lubrication → yiyi tutu (yiya) → itọju ooru → taara → ipari → ayewo
