VAD bụ mbiri nke vacuum arc degassing, usoro VAD bụ ụlọ ọrụ Finkl na ụlọ ọrụ Mohr mebere ya, yabụ a na-akpọkwa ya usoro Finkl-Mohr ma ọ bụ usoro Finkl-VAD. A na-ejikarị ọkụ ọkụ VAD na-edozi carbon ígwè, ngwá ọrụ ígwè, ígwè na-ebu ígwè, elu ductility ígwè na na.
Ngwa nnụcha VAD bụ nke nwere ladle ígwè, sistemu agụụ, akụrụngwa kpo oku ọkụ eletrik na ngwa mgbakwunye ferroalloy.
Njirimara usoro VAD
- Mmetụta degassing dị mma n'oge kpo oku, n'ihi na a na-eme ikpo ọkụ eletrik na ọnọdụ agụụ.
- Nwere ike ịhazigharị okpomọkụ nkedo mmiri nchara nchara nke ọma, akwa mkpuchi nchara nchara nwere ike iweghachi ọkụ nke ọma, ọdịda okpomọkụ na-akwụsi ike n'oge nkedo.
- Enwere ike ịmegharị mmiri mmiri nchara n'ụzọ zuru ezu n'oge a na-emezigharị, ihe mejupụtara mmiri igwe kwụsiri ike.
- Enwere ike itinye nnukwu alloy n'ime mmiri mmiri igwe, ụdị agbaze dị obosara.
- Enwere ike ịgbakwunye ndị na-egbu egbu na ihe ndị ọzọ na-egbu egbu maka desulfurization, decarburization. Ọ bụrụ na a kwadebere egbe ikuku oxygen na mkpuchi oghere, enwere ike iji usoro ikuku oxygen decarburization mee ihe maka ịgbaze igwe anaghị agba nchara ultra low carbon.
Ọrụ VAD nchara nchara na-adaba na ọkụ ọkụ ọkụ ọkụ ọkụ. Igwe ọkụ VAD na-arụ ọrụ na ọnọdụ agụụ, ihe mkpuchi nchara na-arụ ọrụ na-enwe mmiri mmiri nchara na nchara nchara kemịkalụ na ịsacha igwe, ka ọ dị ugbu a, radieshon ọkụ ọkụ eletrik siri ike, okpomọkụ dị elu, mpaghara ntụpọ ọkụ ga-enwe mmebi ka njọ. Na mgbakwunye na onye na-ahụ maka slagging, slag corrosion dị njọ, karịsịa mpaghara akara slag na akụkụ elu, ọnụ ọgụgụ corrosion na-adị ngwa ngwa.
Nhọrọ nke VAD ladle lining refractory ihe kwesịrị ịnakwere ụdị brik dị iche iche dị ka ọnọdụ nka si dị, ya mere ndụ ọrụ na-adị ogologo ma na-ebelata oriri ihe mgbagha.
Ihe ntughari eji na usoro VAD gunyere: brik magnesia chrome, brik carbon magnesia, brik dolomite na ihe ndi ozo.
Na-arụ ọrụ lining tumadi adopts kpọmkwem bonded magnesia chrome brik, rebonded magnesite chrome brik na ọkara rebonded magnesia chromite brik, magnesite carbon brik, chụpụrụ ma ọ bụ unfired elu alumina brik na ala okpomọkụ mesoo brik dolomite, wdg. Na-adịgide adịgide lining na-emekarị n'ozuzu ngwa magnesia chrome brik, brik ọkụ na brik alumina dị elu.
N'ime ọkụ ụfọdụ VAD, akwa akwa na-arụ ọrụ na-ejikarị brik zircon na ngwakọta zircon refractory ramming. N'okpuru akụkụ ahịrị slag bụ nke a na-eji brik alumina dị elu kpuchie. Ejiri brik magnesia chrome jikọtara aka na-arụ akụkụ ahịrị slag. N'elu slag line hot spot ka a na-ewu ya site na brik magnesia carbon na-ejikọta ya, ebe akụkụ nke ọzọ bụ brik na-arụ ọrụ site na brik magnesite chromite kpọmkwem.
Akụkụ ahịrị VAD ladles slag na-anakwere brik magnesia chrome na-ejikọta ya na brik magnesia chrome jikọtara ọnụ. A na-eji brik zircon kpuchie eriri ladle na-arụ ọrụ. Plọg nwere oghere dị elu dabere na alumina mullite, yana akụkụ ndị ọzọ ka ejiri brik alumina dị elu arụghị ọkụ rụọ ya.
Oge nzipu: Feb-15-2022