N'ụlọ ọrụ na-akpụgharị ígwè, mpịakọta ndị a na-eji na-atụgharị oyi na ahịrị na-ekpo ọkụ bụ isi ihe dị mkpa. N'ihi usoro dị iche iche na gburugburu ebe eji eme ihe nke abụọ ahụ, e nwekwara nnukwu ọdịiche dị na nhọrọ ihe nke mpịakọta. Anyị ga-enyocha nke ọma ọdịiche dị na nhọrọ ihe dị n'etiti mpịakọta a na-eji na-atụgharị oyi na ahịrị na-ekpo ọkụ.
Nke mbụ, enwere nnukwu ọdịiche dị na ọnọdụ okpomọkụ na-arụ ọrụ n'etiti ahịrị mpịakọta oyi na-atụgharị na ahịrị na-ekpo ọkụ. A na-eme ahịrị na-ekpo ọkụ na-ekpo ọkụ na oke okpomọkụ ma na-achọkarị iguzogide okpomọkụ dị elu dị ka 1200 ℃. Ya mere, ihe mpịakọta nke ahịrị na-ekpo ọkụ na-ekpo ọkụ ga-enwerịrị arụmọrụ dị elu nke okpomọkụ na ike ọgwụgwụ okpomọkụ. Ihe ndị a na-ahụkarị gụnyere igwe nkedo chromium dị elu, igwe na-agba ọsọ, na igwe anaghị egbochi okpomọkụ. Ihe ndị a abụghị nanị na-eme ka ike na ike dị elu na okpomọkụ dị elu, kamakwa na-eguzogide oxidation na corrosion na-ekpo ọkụ, si otú ahụ na-agbatị ndụ ọrụ nke mpịakọta.
N'ụzọ megidere nke ahụ, a na-eme ahịrị na-atụgharị oyi na ma ọ bụ nso ụlọ okpomọkụ, ya mere mpịakọta adịghị mkpa ka ọ ghara iguzogide okpomọkụ dị elu. Otú ọ dị, n'oge usoro ntụgharị oyi, n'ihi ihe ndị dị elu chọrọ maka ọdịdị elu nke mpempe akwụkwọ, ịdị ike elu na iyi nkwụsị nke mpịakọta dị mkpa karịsịa. A na-ejikarị ihe eji eme ihe dị ka alloy tool steel, carbon tool steel, ma ọ bụ chrome plated steel mpịakọta oyi. Ihe ndị a nwere ihe siri ike ma na-eyi nkwụsi ike, nke nwere ike hụ na elu nke mpịakọta na-adịghị mfe na-eyi n'oge a na-eji ike dị elu ogologo oge, si otú ahụ na-eme ka ọ dị elu nke ngwaahịa ahụ.
Nke abuo, ibu na nrụgide nke mpịakọta na-atụgharị oyi na ahịrị na-ekpo ọkụ dịkwa iche. Akara na-ekpo ọkụ na-ekpo ọkụ na-achọ ka ịpịkọta billet ígwè dị elu na-ekpo ọkụ n'ime nkọwa dị iche iche nke efere ígwè, na mpịakọta ndị ahụ kwesịrị iguzogide nrụgide dị ukwuu na mmetụta, ya mere a chọrọ ka ihe ahụ nwee ike dị elu na ịdị mma dị mma. Ahịrị na-akpụgharị oyi, n'ihi na a na-eme ya na obere okpomọkụ, na-ebute oke shiee na ike esemokwu na mpịakọta. Ya mere, ihe nhọpụta nke mpịakọta oyi na-atụ na-elekwasị anya karị na nguzogide ha na ike ọgwụgwụ.
Na mgbakwunye, usoro mmepụta nke ahịrị mpịakọta oyi na-apụta na-agụnyekarị usoro ọgwụgwọ elu, dị ka chrome plating, quenching, wdg, iji meziwanye ike elu ha na iyi nguzogide. Otú ọ dị, n'ihi ịrụ ọrụ na gburugburu ebe okpomọkụ dị elu, usoro ọgwụgwọ elu ndị a adịghị mma maka mpịakọta mpịakọta ọkụ. Kama nke ahụ, a na-eme ka arụmọrụ ha dịkwuo mma site na ngwakọta alloy na usoro ọgwụgwọ okpomọkụ nke ihe ahụ n'onwe ya.
In summary, there are significant differences in the material selection of rolls for cold rolling and hot rolling lines, mainly reflected in the different requirements for working temperature, load, pressure, and surface quality. Hot rolling line roll materials need to have excellent high-temperature performance and thermal fatigue resistance, while cold rolling line roll materials emphasize high hardness and high wear resistance. Understanding and correctly selecting suitable roll materials is of great significance for ensuring the stability of the rolling process and product quality. As always, we sincerely appreciate your support and business. Please do not hesitate to contact ssophie@welongchina.com if you have any questions or concerns. We look forward to continuing our partnership with you.
Oge nzipu: Jul-01-2024
