Mgbawa mgbawa ga-emetụta ọnụego ngwaahịa emechara ka ọ gachara. Mụbaa oge nhicha billet, ma nnukwu mmerụ ahụ. Okpomọkụ slab bụ mpaghara mgbakasị nke 700-900 ℃. Ihe kpatara mgbawa ala dị ala bụ 1050-1100 ℃, mgbawa transverse n'elu ihe kpatara ya bụ elu billet site na nnukwu akụkụ na-agbatị nrụgide na-agbatị. Niobium nitride na oke ọka austenite na-ebelata ike njikọ, oke oke oke ọka. N'ebe a na akụkụ curved slab junction arc dara ogbenye, na-akpata a ala elu cracks. Vetikal cracks na chemical mejupụtara, ebu jụrụ oyi mmiri okpomọkụ, ebu akụrụngwa, kemịkalụ mejupụtara slag, na-aga n'ihu nkedo igwe nkenke nkenke sekọnd jụrụ usoro metụtara. Usoro mgbochi metụtara:
1. Njikwa ihe mejupụtara ígwè. Gbalịa igbochi wC bụ 0.12% -0.16% D36 nchara carbon n'ime usoro njikwa agbaze dịka oke elu. Nwere ike belata mgbape nke ọma. Mpaghara mmeghachi omume Peritectic.
2. Control crystallization okpomọkụ mgbe niile ebu okpomọkụ, ebu okpomọkụ mgbanwe irè ụzọ mma bụ dịkwuo ebu jụrụ mmiri preheating ngwaọrụ. Na-egbochi ihe omume mgbawa mgbe ihu igwe gbanwere. Enwere ike iji ya mgbe ọ bụla nkwụsị na-agbapụta na oge ịwụsa anaghị emeghe mgbe mmiri ọkụ dị n'okpuru 20 ℃ ebu ebu mmiri jụrụ oyi, iji hụ na okpomọkụ nke ihe nkedo ebu ejiji.
3. Gbanwee usoro usoro crystallization iji dozie oke mmiri nke nha nke ebu, dị ka ọkpụkpụ ọla kọpa dị iche iche si dị. Site n'ịgbanwe oke mmiri iji hụ na ọkwa dị iche iche nke otu ebu dị jụụ ike.
4. Iji meziwanye usoro jụrụ oyi nke abụọ, na-emeziwanye ọnọdụ okpomọkụ nke mpaghara ịgbatị, site n'ịkwalite usoro nhazi nke abụọ. Gbochie mgbanaka mpaghara billet ịgbatị, ga-aka mma belata ohere nke mgbawa mgbawa slab transverse.
5. Strand site strand mpụta nhicha na mwepụ nke slab scarfing akuku, bụ irè ụzọ ihicha slab billet ikpeazụ mmesi obi ike. Anyị nwere ike melite ogo ikpeazụ nke slab.
Oge nzipu: Jul-24-2023