(1) welded chitoliro kuchokera zitsulo mbale kuwotcherera mu chitoliro chozungulira, ogaŵikana mkulu pafupipafupi kukana welded chitoliro (ERW welded chitoliro), molunjika msoko arc kuwotcherera chitoliro (LSAW), muzungulira welded pipe.Electrical engineering ndi "SC", angagwiritsidwe ntchito monga madzi gasi chitoliro Angagwiritsidwenso ntchito ngati ulusi chitoliro, ndi wandiweyani.

(2) Chitoliro cha payipi, chomwe chimadziwikanso kuti chitoliro cha waya, ndi chochepa kwambiri, chomwe chimatchedwa "T", ndipo chingagwiritsidwe ntchito popanga threading.ERW zitsulo pipeERW

(3) ERW chubu ndi "mkulu pafupipafupi kukana kuwotcherera zitsulo chubu", ndi njira kuwotcherera wamba ndi yosiyana, mzere kuwotcherera ndi kuchokera m'munsi chuma lamba thupi anasungunuka, mphamvu mawotchi kuposa kuwotcherera ambiri.ERW waima chifukwa kukana kuwotcherera, kukana kuwotcherera ali ndi makhalidwe a dzuwa mkulu kupanga, mtengo wotsika, kupulumutsa zinthu ndi zosavuta zochita zokha, choncho chimagwiritsidwa ntchito mu ndege, zamlengalenga, mphamvu, zamagetsi, magalimoto, makampani kuwala ndi magawo ena mafakitale, ndi imodzi mwa zofunika kuwotcherera njira.

Njira Yopangira ya ERW chitoliro chachitsulo:

Kumasula --- 2. Kutsika --- 3. Kuthetsa kudula --- 4. Kuthetsa kumeta ubweya --- 5. Supercoil accumulator --- 6. Kudula m'mphepete --- 7. Kuzindikira kwaukadaulo --- 8. Kupanga - -- 9. Kuwotcherera kwamagetsi --- 10. Kuzindikira kwa ultrasonic kwa weld seam --- 11. Kutentha kwapakati pafupipafupi --- 12. Kuzizira kwa mpweya --- 13. Kuzizira kwamadzi --- 14. Kukula --- 15 . Kudula kouluka --- 16. Flush-out --- 17. Cropping --- 18. Mayeso osalala --- 19. kuwongola --- 20. Mapeto akuyang'ana ndi kuyimba --- 21. Kuyesa kwa Hydrodynamic --- 22 Kuzindikira kwa ultrasonic kwa weld seam --- 23. Kuzindikira kwa ultrasonic kwa chitoliro kumapeto --- 24. Kuyang'ana kowoneka ndi miyeso --- 25.Kulemera ndi kuyeza --- 26. Kulemba --- 27. Kuphimba --- 28. Chitetezo cha chitoliro --- 29. Kupinda --- 30. Kutumiza