Kwintsimi ye-oyile yokugaya kunye ne-oyile kakuhle, i-high-frequency electric resistance welded casing (ebizwa ngokuba yi-ERW casing) xa kuthelekiswa ne-casing engenamthungo kukuchaneka okuphezulu kwe-dimensional, ukuqina kwe-weld, i-anti-extrusion yokusebenza okuphezulu, kunye neendleko eziphantsi. isetyenziswe ngokubanzi kumazwe angaphandle, kwaye ifumene iziphumo ezilungileyo.

Iimpawu ze-ERW casing (xa kuthelekiswa necasing engenamthungo)
Ukuchaneka komgangatho ophezulu: I-ERW casing isebenzisa inkqubo yokulinganisa ngoomatshini emva kokubunjwa, i-casing echanekileyo engenamthungo iye yandisa ubungakanani bayo (i-diameter yangaphandle, ubukhulu bodonga, ukujikeleza, njl.Njengoko kuveliswe yi-Nippon Steel 6244.5 n'un ERW i-casing ubukhulu ukutenxa umgangatho osemgangathweni we-<0.10 ye-mill ehambelana necasing engenamthungo ukutenxa umgangatho ube yi-0.41 mill.

Ukuqina okuhle kwe-weld: Inkqubo yokuvelisa i-ERW casing inokuqinisekiswa ukufumana umxholo we-C, S kunye ne-P uphantsi kwintlangano yecandelo kunye nesiseko sezinto ezinamandla aphezulu, ukuqina okuphezulu kwe-weld, ukuqina kwe-weld umkhono ongenamthungo ukuze i-sleeve tube. .

I-Anti-extrusion iimpawu ze-antiknock: amandla aphezulu 30% ukuya kwi-40% xa kuthelekiswa ne-API efanayo i-casing casing, i-ERW i-casing anti-extrusion, i-anti-knock properties (uxinzelelo lwangaphakathi) malunga ne-50% ephezulu.

Ubuchwephesha obuphezulu, ukulawulwa komgangatho wemveliso: Isiseko sentsimbi ye-ERW yokulawula i-coil, isotropic, i-100% yovavanyo olungonakalisi.

Iindleko eziphantsi: xa kuthelekiswa ne-casing efanayo, i-ERW ibeka i-5% ukuya kwi-10% yexabiso eliphantsi, ukusebenza kakuhle okuphezulu, iqondo eliphezulu lomatshini kunye ne-automation, ukusetyenziswa kwamandla aphantsi kunye nemveliso;I-ERW casing igqityiwe ireyithi yemveliso yama-93% ukuya kuma-98%, kunye necasing engenamthungo egqityiweyo ireyithi yemveliso yama-85% ukuya kuma-90%;I-ERW ibeka yonke iprojekthi yotyalo-mali ingaphantsi ngama-40% kuneprojekthi yecasing engenamthungo.

Iimpawu zobugcisa ze-ERW casing
(1) Ukukhethwa kwezinto ezibonakalayo ezilawulwa yi-coil rolling, ulawulo oluqinileyo lomxholo we-S kunye ne-P, kunye nekhabhoni elinganayo, ngokuqhelekileyo i-W (S) ≤ 0.015%, i-carbon elingana ≤ O. 25%.Kwaye ukusetyenziswa kwe-micro-alloying element efana ne-Nb, V, Ti, kunye ne-cu iphucula ukuqina kwentsimbi ukuphucula i-weldability kunye nokumelana nokubola.

(2) Ikhoyili etyebileyo emva konyango lokusila, inokunciphisa i-welding burrs ebangelwa kukushisa kwendawo kunye ne-oxidation.

(3) Isetyenziswe ngokubanzi i-spiral looper kwimveliso eqhubekayo, akukho mveliso yebhetshi ye-roll-to-volume ebangelwa yi-welding standstill, ekhokelela ekuqaliseni kwakhona ukuwelda, i-welding yangoku, ukungazinzi kombane ngenxa yeziphene zomgangatho wemveliso.

(4) Ngokuqhelekileyo isetyenziswe kwi-state-of-the-art yokususwa kwe-hydraulic yenkqubo ye-burrs, i-casing yangaphakathi yokulawula ukuphakama kwe-burr 1.14 NLNL.

(5) Iiparamitha ze-welding ezingqongqo, kubandakanywa amandla okufakwayo, i-angle ye-welding ye-V, isantya se-welding, ulawulo lobushushu be-welding.Ubushushu be-welding ngesantya esiphezulu se-welding yolawulo lwamandla oluvaliweyo, ukulawula ukuguquguquka okungaphantsi kwe-± 5 ℃.

(6) Ugxininiso kunyango lwe-post-weld heat heat, ngokusebenzisa unyango lwe-post-weld ukushisa ukuphucula umbutho kunye noxinzelelo lwangaphakathi lwe-weld zone.

(7) Ukwenza amandla aphezulu kunye neyunithi yokulinganisa, ukunciphisa ukuchaneka okukhulu okugqityiweyo.

(8) Ukwenzela i-weld kunye nentsimbi njengovavanyo olupheleleyo okanye olungekho kwi-line olungonakalisi, ukufumanisa ngexesha elifanelekileyo kunye nokuchanekileyo kweziphene, ukwenzela ukulungelelanisa inkqubo yokuvelisa ngexesha lokuqinisekisa umgangatho wemveliso.