LSAW Carbon Steel Pipe Welded Steel Pipe

ʻO ka wehewehe ʻana i ke kaʻina hana nui o ka nui-diameter straight seam welded pipe:

1. Ka nānā ʻana o ka pā: Ma hope o ka pā kila i hoʻohana ʻia e hana i ka nui-diameter submerged arc welded straight seam steel pipe komo i ka laina hana, ua hoʻokō mua ʻia ka nānā ʻana i ka ultrasonic plate piha;

2. ʻO ka wili wili: ʻelua ʻaoʻao wili o nā ʻaoʻao ʻelua o ka pā kila e ka mīkini wili e hoʻokō ai i ka laula pā i makemake ʻia, ka parallelism lihi o ka pā a me ke ʻano bevel;

3. Hoʻopili mua: E hoʻohana i ka mīkini mua e hoʻopili mua i ka lihi o ka papa i loaʻa i ka lihi o ka papa ka curvature e kūpono i nā koi;

4. Hana ʻia: Ma ka mīkini hana JCO, kaomi ʻia ka hapa mua o ka pā kila i hoʻohālikelike ʻia i ke ʻano "J" ma o nā ʻanuʻu heʻe, a laila ʻoki ʻia ka hapa ʻē aʻe o ka pā kila a paʻi ʻia i kahi "C. " shape, a i ka hopena ua hoʻokumu ʻia kahi puka "O".

5. Pre-weld: Hoʻohui i nā paipu kila longitudinally welded a hoʻohana i ke kinoea pale kuʻi (MAG) no ka hoʻomau mau ʻana;

6. Kuʻo kuʻihao kūloko: hoʻohana i ka longitudinal multi-wire submerged arc welding (a hiki i ʻehā uea) e wili ma ka ʻaoʻao o loko o ka paipu kila humuhumu pololei;

7. Kuʻi kuʻihao waho: hoʻohana i ka longitudinal multi-wire submerged arc wiliwili e wili ma waho o ka longitudinal submerged arc welded steel pipe;

8. Ultrasonic inspection I: 100% ka nānā ʻana i nā welds o loko a me waho o ka paipu kila longitudinally welded a me nā mea kumu ma nā ʻaoʻao ʻelua o ka weld;

9. X-ray inspection I: 100% X-ray industrial television inspection o nā welds o loko a me waho, me ka hoʻohana ʻana i kahi ʻōnaehana kiʻi kiʻi e hōʻoia i ka sensitivity o ka ʻike kīnā;

10. Hoʻonui ana i ke anawaena: e hoʻonui i ka lōʻihi o ke arc i hoʻopaʻa ʻia i hoʻopaʻa ʻia i ka paipu kila humuhumu pololei e hoʻomaikaʻi i ka pololei o ka nui o ka paipu kila a hoʻomaikaʻi i ka hāʻawi ʻana i ke koʻikoʻi kūloko o ka paipu kila;

11. Ho'āʻo Hydraulic: Nānāʻia nā paipu kila i hoʻonuiʻia i kēlā me kēia ma ka mīkini ho'āʻo hydraulic e hōʻoia i ka hoʻokōʻana o ka paipu kila i ke kaomi ho'āʻo e koiʻia e ka maʻamau.Loaʻa i ka mīkini nā hana hoʻopaʻa a me ka mālama ʻana;

12. Chamfering: E ​​hana i ka hopena o ka paipu o ka paipu kila kūpono e hālāwai me ka nui o ka nui o ke awāwa paipu;

13. Ultrasonic inspection Ⅱ: E hana hou i ka ultrasonic inspection e nānā i nā hemahema o ka paipu kila longitudinally welded ma hope o ke anawaena hoʻonui a me ke kaomi wai;

14. X-ray inspection Ⅱ: X-ray industrial television inspection and filming of pipe end welds on the steel pipe after the expansion and hydraulic test;

15. ʻO ka nānā ʻana i nā ʻāpana magnetik hope o ka paipu: e hoʻokō i kēia nānā e ʻike i nā hemahema o ka hopena o ka paipu;

16. Anti-corrosion a me ka uhi: ʻO nā paipu kila kūpono he anti-corrosion a me ka uhi e like me nā koi o ka mea hoʻohana.