N'ebe a na-egwupụta mmanụ na mmanụ olulu mmiri, nnukwu ọkụ eletrik na-eguzogide welded casing (nke a na-akpọ ERW casing) ma e jiri ya tụnyere casing enweghị nkebi bụ ihe ziri ezi nke akụkụ dị elu, ịdị ike weld, mgbochi extrusion nke arụmọrụ dị elu, na uru dị ala, nke. ejirila ya mee ihe n'ọtụtụ ebe na mba ndị ọzọ, ma rụpụta ihe dị mma.

Njirimara nke casing ERW (tụnyere casing enweghị nkebi)
Oke akụkụ ziri ezi: ERW casing na-eji usoro nha nha mgbe emechara, nkenke enweghị nkebi casing abawanyela nha ya (n'èzí dayameta, ọkpụrụkpụ mgbidi, okirikiri, wdg), na ngbanwe nke mpụta adịghị agafe ± 0 Nkezi .5%. Dị ka nke Nippon Steel 6244.5 n'un ERW casing ọkpụrụkpụ ọkọlọtọ ndahie nke <0.10 igwe nri kwekọrọ enweghị nkebi casing ọkọlọtọ deviation bụ 0.41 igwe nri.

Ezi weld siri ike: Enwere ike ijide n'aka na usoro nrụpụta casing ERW ga-enweta C, S na P ọdịnaya dị ala na nhazi akụrụngwa na ihe ndabere nke ike dị elu, ike siri ike nke weld, weld toughness enweghị nkebi aka uwe nke mere na tube aka uwe. .

Mgbochi extrusion ihe antiknock: ike dị elu 30% ruo 40% ma e jiri ya tụnyere API enweghị nkebi casing, ERW casing anti-extrusion, mgbochi ịkụ aka (nrụgide nke ime) ihe dị ka 50% elu.

Teknụzụ dị elu, njikwa mma ngwaahịa: ERW sleeve base metal control rolled coil, isotropic, 100% ule na-adịghị emebi emebi.

Ọnụ ala: ma e jiri ya tụnyere casing enweghị nkebi, ERW casing 5% ruo 10% ọnụ ala dị ala, arụmọrụ dị elu, ogo dị elu nke mechanization na akpaaka, obere ike oriri na mmepụta; ERW casing okokụre ngwaahịa ngwaahịa nke 93% ka 98% , na enweghị nkebi casing okokụre ngwaahịa nke 85% ka 90%; Ntinye ego ERW dum dị 40% dị ala karịa ọrụ casing enweghị nkebi.

Njirimara teknụzụ nke casing ERW
(1) Nhọrọ nke akụrụngwa na-achịkwa eriri igwe mpịakọta, njikwa siri ike nke ọdịnaya nke S na P, yana carbon kwekọrọ, na-abụkarị W (S) ≤ 0.015%, carbon kwekọrọ ≤ O. 25%. Na ojiji nke micro-alloying element dị ka Nb, V, Ti, na cu na-emeziwanye ike nke ígwè iji melite weldability na corrosion resistance.

(2) oké eriri igwe mgbe ihu-egwe ọka ọgwụgwọ, nwere ike ibelata ịgbado ọkụ burrs mere n'ógbè ikpo ọkụ na ọxịdashọn.

(3) A na-ejikarị spiral looper eme ihe maka mmepụta ihe na-aga n'ihu, ọ dịghị mmepụta mpịakọta mpịakọta na-emepụta site na nkwụsị ịgbado ọkụ, na-ebute ịmalite ịgbado ọkụ, ịgbado ọkụ ugbu a, voltaji enweghị ike n'ihi mmebi àgwà ngwaahịa.

(4) A na-ejikarị eme ihe na mwepụ hydraulic ọgbara ọhụrụ nke usoro burrs, casing inner burr high control 1.14 NLNL.

(5) Mpempe ịgbado ọkụ siri ike, gụnyere ike ntinye, akụkụ V nke ịgbado ọkụ, ọsọ ịgbado ọkụ, njikwa okpomọkụ ịgbado ọkụ. Welding okpomọkụ site elu-ugboro ịgbado ọkụ ọsọ nke a mechiri emechi loop ike akara, ịchịkwa fluctuation nke ihe na-erughị ± 5 ℃.

(6) Na-emesi ike na ọgwụgwọ okpomọkụ nke post-weld, site na ọgwụgwọ okpomọkụ nke post-weld iji meziwanye nzukọ na nrụgide dị n'ime nke mpaghara weld.

(7) Ime nke elu ike na size unit, mbenata nnukwu nkenke okokụre.

(8) Maka weld na nchara dị ka nyocha zuru oke ma ọ bụ na-anọghị n'ahịrị na-adịghị emebi emebi, nchọpụta oge na nke ziri ezi nke ntụpọ, iji gbanwee usoro mmepụta oge iji hụ na ngwaahịa ngwaahịa.