ERW pombizvinodiwa zvehunyanzvi
| Technical zvinodiwa | Zvekutakura mafuta uye gasi | Kutakura mvura ine simba shoma |
| Material | Gr.b | Gr.b |
| Pipe muviri dhayamita | D＜508mm, ±0.75%;D≥508mm, ±0.75% | D≤168.3, ±1.0%;168.3＜D≤508,±0.75%; |
| Kukora kwemadziro | D＜508mm, + 15.0%, -12.5%;D≥508mm, +17.5%, -10% | ±12.5% |
| Bending | ≤0.2% | ≤0.2% |
| Ovality | D≥508mm,≤±1% | ≤±0.75% |
| Bevel | ≤1.59mm | ≤5mm |
| Kuongororwa kweHydrostatic | 100% | 100% |
| Nondestructive test | 100% isina-inoparadza weld yekuongorora | Ultrasonic kuona kukanganisa ndeye 100% |
ERW pombi weld contour chimiro
Zvinoenderana neiyo API SPEC 5L zviyero, mazhinji ekugadzira emumba chirimwa panguva yeSAW pombi weld tensile bvunzo, kazhinji inochengeta iyo weld yekusimbisa, yakananga tensile bvunzo kubva muyedzo kashoma kuputsika welds mamiriro.Chikonzero chikuru chinogona kuverengerwa nekuvapo kwekusimbisa weld.SAW pombi, yakataura kupfuura yakakwirira kana kusimbisa yakakwirira, muchinangwa chekuwedzera ukobvu hwenzvimbo yeweld, uye kuwedzera kusimba kwesimba reiyo weld, kusimba kwenzvimbo yeweld (yakazara simba rechimiro) kupfuura kusimba kwechigadziko. zvikamu zvesimbi.
Reference SAW pombi weld Kusimbisa kunobatsira basa muERW pombi welding Weld inotarisira kusvina gobvu, munharaunda yeweld kuti iite gobvu rakakura kupfuura kukora kwechigadziko, ichienda kune inosimbisa layer weld inopisa-inobatwa zone, ipapo mukati. iyo welding burr inogadzira kuenzana kwakazara, ichigadzira wavy yakatsetseka yekushandura dunhu kuti ivandudze kusimba kwenzvimbo yeweld pakati pe base simbi uye simbi welds.Zvichakadaro, sezvo ukobvu hwepombi welds vane kushivirira kukuru, kunyange kukwesha hurongwa kusagadzikana nekuda kwemukati glitch, zvichikonzera imwe dhigirii ye scratch groove welds, hazvizokonzerese kuderera kwakakomba weld simba.Uye zvakare, iyo weld uye base simbi yakatsetseka shanduko, ultrasonic kuyedzwa kweiyo weld haikonzeri manyepo ekuwedzera mwero.
Kukwenya mukati mewelds yakatsetseka burr, weld uye base simbi shanduko yakatsetseka.Kazhinji pombi yesimbi madziro ukobvu i 11.9mm, ukobvu hwemhando ye extrusion welds inowanzobva pa 25mm kusvika kune chero divi reweld yega yega, iyo weld chikamu mushure mekubviswa kweburr pane zvimwe zvikamu zve base base zvinhu ukobvu hunosvika gumi%.Diki kukora kwepombi, kusvina gobvu renji kunogona kudzikiswa, asi chikamu cheweld dzakakora zvikamu zve general control 10% ye base base material ukobvu.
Nguva yekutumira: Oct-29-2019