LSAW Carbon Steel Pipe Welded Steel Paipu

ʻO ka wehewehe ʻana i ke kaʻina hana nui o ka paipu wili wili pololei ʻia nui-diameter:

1. Papa nānā: Ma hope o ka pā kila i hoʻohana 'ia e hana i ka nui-anawaena submerged arc welded pololei seam kila paipu komo i ka hana laina, ka piha piha ultrasonic nana i lawe mua ia;

2. ʻO ka wili wili: ʻelua ʻaoʻao wili o nā ʻaoʻao ʻelua o ka pā kila e kahi 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 nui, a laila ʻo ka hapa ʻē aʻe o ka pā kila e kūlou pū ʻia a paʻi ʻia i kahi ʻano "C", a ma hope ua hana ʻia kahi puka "O".

5. Pre-weld: Hoʻohui i nā paipu kila longitudinally i hoʻopaʻa ʻia a hoʻohana i ke kinoea shielded welding (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 i loko o ka paipu kila humuhumu pololei;

7. ʻO ka hoʻoheheʻe ʻana i waho: hoʻohana i ka longitudinal multi-wire submerged arc welding e wili ma waho o ka longitudinal submerged arc welded steel pipe;

8. Ultrasonic inspection I: 100% ka nānā ʻana i nā welds i 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 e hōʻoia i ka naʻau o ka ʻike kīnā;

10. Hoʻonui ʻia ka anawaena: hoʻonui i ka lōʻihi holoʻokoʻa o ke arc submerged welded straight seam steel pipe 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: Ke nānāʻia nā paipu kila i hoʻonuiʻia i kēlā me kēia ma ka mīkini hoʻokolohua hydraulic e hōʻoia i ka hoʻokōʻana o ka paipu kila i ka ho'āʻo 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 paipu o ka paipu kila kūpono e hoʻokō i ka nui o ke awāwa hopena 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 ka wai kaomi;

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 ʻumeke o ka pahu: e hana 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.