Gịnị bụ "Pipeline Steel"?

Ngwa ígwè pipeline

Pipeline ígwèụdị ngwaahịa na-agụnye ọkpọkọ nchara na-enweghị ihe ọ bụla na ọkpọkọ ígwè welded, nke nwere ike kewaa ụzọ atọ: alpine, mpaghara sọlfọ dị elu na ebe ndị dị n'oké osimiri. .

Ọtụtụ ihe ịma aka nke ígwè pipeline chere ihu gụnyere: ọtụtụ n'ime mmanụ na gas dị na mpaghara pola, akwa ice, ọzara, na mpaghara oke osimiri, na ọnọdụ okike dị oke njọ;ma ọ bụ iji melite arụmọrụ njem, a na-abawanye dayameta nke pipeline mgbe niile, na nrụgide nnyefe na-abawanye mgbe niile.

Njirimara Pipeline Steel

Site na nyocha zuru oke nke mmepe mmepe nke mmanụ na gas pipelines, ọnọdụ ntinye pipeline, ụdị ọdịda isi na ọdịda na-akpata, pipeline ígwè kwesịrị inwe ezigbo ihe eji arụ ọrụ (mgbidi gbara ọkpụrụkpụ, ike dị elu, ịdị elu siri ike, na-eyi nguzogide), ma kwesịkwara inwe. nnukwu dayameta, Ọ kwesịkwara inwe nnukwu dayameta, weldability, oyi na obere okpomọkụ na-eguzogide, corrosion resistance (CO2), iguzogide mmiri mmiri na HIC, SSCC arụmọrụ, wdg.

① Ike dị elu

Ngwongwo pipeline ọ bụghị naanị na-achọ ike ike dị elu na ike mkpụrụ, kamakwa ọ na-achọ ka nha mkpụrụ dị na nso nke 0.85 ~ 0.93.

② Mmetụta siri ike dị elu

nnukwu mmetụta siri ike nwere ike izute ihe ndị a chọrọ iji gbochie mgbawa.

③Obere okpomọkụ mgbanwe ductile-na-emebi emebi

Mpaghara siri ike na ọnọdụ ihu igwe chọrọ nchara pipeline ka ọ nwee oke mgbanwe okpomọkụ zuru oke ala ductile-na-emebi emebi. Mpaghara shear nke DWTT (Drop Weight Tear Test) aghọwo isi njikwa njikwa iji gbochie ọdịda nke pipelines. nkọwa n'ozuzu chọrọ nke ahụ. ebe mgbaji ọkpụkpụ nke ihe nlere anya ga-abụ ≥85% na okpomọkụ kachasị ala.

④ Nguzogide dị oke mma na mgbawa hydrogen na-akpata (HIC) na nrụgide corrosion corrosion sulfide (SSCC)

⑤ Ezigbo ịgbado ọkụ

Ezi weldability nke ígwè dị ezigbo mkpa iji hụ na iguzosi ike n'ezi ihe na ịdị mma nke pipeline.