A rilru a buai em em a, 0 a rilru a hah em em bawk a. Hmun
Pipe hmanrua kan weld lai hian, pipe seam problem welding an tawk fo thin a, seam chu eng nge ni? Chu chu, welding process-ah chuan steel pipe weld chu weld theih a ni lo va, chu chuan phenomenon of substandard quality a thlen thei a ni. A tlangpuiin, slit sei zawng hi centimetre tlemte emaw a aia sei emaw a ni a, chu chuan welding pipe hmanrua a ti chhe em?
Welded pipe hmanrua hawn a nih chhan ber chu material problem vang a ni a, a tam zawk hi raw materials chemical composition vang a ni. Welding kalpui mek lai hian, an vai hian step pangngai angin an ti vek a, pipe sizing kalpui danah chuan cracking state a awm a, a nih loh leh weld crack chu weld lairil atanga a inthlak danglam tih kan hmu a, base metal kil atanga irregular crack siam chu raw material chemical composition avanga lo awm mai a ni!
Magnetic bar chu tube billet welding kalpui meknaah magnetic field siam a ni a, chu chuan weld 'v' ang maia area-a concentrated high step frequency current a thlen ang a, chutiang chuan weld chuan hun rei lo te chhungin high temperature point a thleng ang a, magnetic bar-in a hawn hawnna chu ziarang langsar tak a nei a, chu chu, weld chu a dum leh sen a ni lo va, a inhawng vek a ni. A châng chuan, a chunglam chu welding process zo tawh anga lang mah se, a takah chuan 100% a tling lo.
Tichuan pass wear a awm a, chu chu extrusion roll pass wear nen a inzawm a, pass size chu a pung zauh zauh a. Hot rolled steel strip chu welding pipe siamna atana raw material atan hman a nih a, steel strip zau zawng chu negative deviation emaw, pulling tlemte emaw a nih chuan weld hian quality problem a nei ang a, chu chuan sand holes a siam ang a, internal welding ribs a awm lo ang a, a nih loh leh slit pipe a awm ang. Chuvangin, welded pipe chhunga burr hi enfiah fo a ngai a, extrusion roll-a extrusion amount tihpun a ngai a, a nih loh leh pass thar thlak a ngai bawk.
A tawp berah chuan welded pipe hmanrua cracking chhan chu chhiatna a ni. Welding process-ah chuan extrusion roll bearing hi a chhe deuh hlek a, mahse weld quality problems, trachoma tube leh lap welded pipe te a siam ang. Bearing a chhiat chuan extrusion roll hian tube blank weld-a extrusion pressure a hloh ang. Hetih lai hian quality accident dang nen a inzawm a, hetih lai hian extrusion roll-a bearing damage pawh kan hmu thei a, swing amplitude chu bearing damage degree nen a pung ang.