Ọkụ gbanyere mkpọrọgwụ kwụ ọtọ (ERW ogologo onuete welded ígwè anwụrụ) na-etolite na-ekpo ọkụ akpọrepu efere nke akpụ igwe, akpụkpọ mmetụta na nso mmetụta nke elu ugboro ugbu a, agbaze nke ọkpọkọ nsọtụ kpo oku na extrusion rola mgbali ịgbado ọkụ iji nweta mmepụta.

Ngwa nke usoro ịgbado ọkụ na-eguzogide ugboro ugboro na mmepụta pipeline na 1950 ahụla ka teknụzụ mmepụta tozuru oke na mmụba na-aga n'ihu nke ogo ngwaahịa n'ime afọ iri gara aga ma ọ bụ karịa.

Nke mbụ, n'ịdị mma nke ihe eji eme ihe, mmepụta nke ERW ígwè ọkpọkọ emewo ka ọ dịkwuo mma, nhazi nke nhazi ígwè nke obere carbon, obere P, S, micro-alloying; smelting usoro agbaze, ladle refining, agụụ degassing, na-aga n'ihu nkedo na ndị ọzọ na nkà na ụzụ ọhụrụ Na mgbakwunye na ERW achịkwa Rolling na oyi Rolling usoro, na nkà na ụzụ nyeere ọdịdị size nke na-ekpo ọkụ akpọrepu ígwè ibe nke nnukwu na ọkara caliber ERW ígwè tubes ka. a ga-akawanye mma na ọdịdị ọdịdị, njirimara anụ ahụ na njirimara kemịkal. Pipeline nchara nke Baoshan Iron and Steel Company na-emepụta, ọkwa kachasị elu nke igwe na-ekpo ọkụ na-ekpo ọkụ na mba m, ezutewo ọkọlọtọ American Petroleum Institute API 5L ma nọkwa na ọkwa dị elu nke mba ụwa.

Na-esote nke etiti na nnukwu dayameta ERW ịkpụzi ịgbado ọkụ na okpomọkụ ọgwụgwọ usoro nke mmepụta usoro iji nweta kọmputa akpaka akara, elu ugboro na kọmputa akpaka akwụ ụgwọ usoro ịgbado ọkụ usoro okpomọkụ ntinye ike n'ụzọ dị irè na-achịkwa iji gbochie ịgbado ọkụ ọkụ input ịgbado ọkụ oyi mere site ala. ntinye ọkụ ịgbado ọkụ na oke ọkụ nke ike dị elu kpatara. Igwe ọkụ na-ekpo ọkụ na-ekpo ọkụ na-enye ohere ka usoro ọgwụgwọ okpomọkụ nweta nsonaazụ kacha mma dịka usoro a chọrọ, na-eme ka ọ dị mma nke ọma nke ọkpọkọ ọkpọkọ na mpaghara okpomọkụ na-emetụta.

Tụkwasị na nke ahụ, ọganihu nke ERW tube straight sea welded pipe technology arụpụtala ihe ntanetị ma ọ bụ offline ultrasonic ma ọ bụ eddy ugbu a weld n'ihe ize ndụ mmebi, na hydraulic ule ule nwere ike ịbụ n'okpuru nlekọta nke kọmputa, nrụgide ule na usoro iwu chọrọ. The nkwalite na mmejuputa iwu nke ọkọlọtọ na nkọwapụta APIQ1 ISO9000 usoro hụ na àgwà mmesi obi ike na dum usoro nke mmepụta, nnyocha, ahịa na ọrụ nke ọkara na nnukwu caliber ERW ogologo onuete ígwè ọkpọkọ.

N'ime afọ ndị na-adịbeghị anya, mba dị iche iche na-arụsi ọrụ ike na-anakwere ERW kwụ ọtọ welded ọkpọkọ na gburugburu welded ọkpọkọ enweghị nkebi, na mba mepere emepe, ERW ogologo onuete ọkpọkọ dayameta Ф610mm obere, ERW ígwè ọkpọkọ ruru banyere 70% nke nha. Ike mmepụta anyị nke ERW Longitudinal kwalitekwara oge ụfọdụ.