Mtengo wa ERWzofunikira zaukadaulo
| Zofunikira zaukadaulo | Kwa zoyendera mafuta ndi gasi | Kwa otsika kuthamanga madzimadzi kunyamula |
| Zakuthupi | Gr.b | Gr.b |
| Chitoliro cha thupi | D＜508mm, ± 0.75%;D≥508mm, ± 0.75% | D≤168.3, ± 1.0%;168.3＜D≤508, ± 0,75%; |
| Khoma makulidwe | D＜508mm + 15.0%,-12.5%;D≥508mm, + 17.5%,-10% | ± 12.5% |
| Kupinda | ≤0.2% | ≤0.2% |
| Ovality | D≥508mm,≤±1% | ≤± 0.75% |
| Bevel | ≤1.59 mm | ≤5 mm |
| Kuyeza kwa Hydrostatic | 100% | 100% |
| Kuyesa kosawononga | 100% kuwunika kosawononga weld | Kuzindikira zolakwika za Ultrasonic ndi 100% |
ERW chitoliro weld contour mawonekedwe
Malinga ndi miyezo ya API SPEC 5L, malo ambiri opanga zoweta panthawi ya mayeso a SAW weld weld tensile, nthawi zambiri amasunga kulimbitsa, kuyeserera kwamakokedwe kolunjika kuchokera pamayeso omwe samasweka.Chifukwa chachikulu chikhoza kukhala chifukwa cha kukhalapo kwa kulimbikitsana kwa weld.SAW chitoliro, ananena kuposa mkulu kapena kulimbikitsa mkulu, mu cholinga kuonjezera makulidwe a weld dera, ndi kuonjezera mphamvu structural wa weld, mphamvu ya weld dera (yonse structural mphamvu) kuposa mphamvu ya maziko. zitsulo mbali.
Buku SAW chitoliro kuwotcherera Kulimbikitsa ntchito yopindulitsa mu ERW chitoliro kuwotcherera Weld akufuna Finyani wandiweyani, pafupi ndi weld kupanga makulidwe aakulu kuposa makulidwe a zinthu m'munsi, mpaka ku kulimbikitsa wosanjikiza kuwotcherera chitoliro kukhudzidwa zone, ndiye mkati. Kuwotcherera Burr mapangidwe kwathunthu evenness, kupanga wavy yosalala kusintha dera kusintha structural mphamvu ya weld dera pakati zitsulo m'munsi ndi zitsulo welds.Panthawiyi, popeza makulidwe a welds chitoliro ndi kulolerana kwambiri, ngakhale kukanda kusakhazikika dongosolo chifukwa glitch mkati, chifukwa ena digiri ya zikande poyambira welds, izo sizidzachititsa kwambiri kuchepa kuwotcherera mphamvu.Komanso, kuwotcherera ndi m'munsi zitsulo yosalala kusintha, akupanga kuyezetsa wa weld sikuchititsa onyenga zabwino mlingo ukuwonjezeka.
Pewani ma welds amkati osalala kwambiri, weld ndi kusintha kwachitsulo kosalala kwambiri.Kawirikawiri chitsulo chitoliro khoma makulidwe ndi 11.9mm, makulidwe osiyanasiyana extrusion welds ambiri amachokera pafupifupi 25mm kuti mbali iliyonse ya weld aliyense, gawo weld pambuyo kuchotsa burr kuposa mbali zina za m'munsi zinthu makulidwe pafupifupi 10%.Zing'onozing'ono makulidwe a chitoliro, Finyani wandiweyani osiyanasiyana akhoza kuchepetsedwa, koma gawo la weld thicker mbali ya ulamuliro ambiri 10% ya makulidwe m'munsi zinthu.
Nthawi yotumiza: Oct-29-2019