Indastering ea ho roala tšepe, lirolo tse sebelisoang mekhoeng e batang le mehala e chesang ke likarolo tsa bohlokoa tsa mantlha. Ka lebaka la lits'ebetso tse fapaneng le maemo a ts'ebeliso ea tse peli, ho boetse ho na le phapang e kholo khethong ea thepa ea meqolo. Re tla hlahloba ka ho qaqileng phapang ea khetho ea thepa pakeng tsa meqolo e sebelisoang ho batang le melaleng e chesang.
Taba ea pele, ho na le phapang e kholo mochesong oa ts'ebetso lipakeng tsa meqolo e batang ea mela le mela e chesang. Mehala e chesang e etsoa ka mocheso o phahameng 'me hangata e hloka ho mamella mocheso o ka holimo ho 1200 ℃. Ka hona, thepa ea moqolo oa mohala o chesang o tlameha ho ba le ts'ebetso e ntle haholo ea mocheso o phahameng le ho hanyetsa mokhathala oa mocheso. Lisebelisoa tse tloaelehileng li kenyelletsa tšepe e phahameng ea chromium, tšepe ea lebelo le phahameng, le tšepe e thibelang mocheso. Lisebelisoa tsena ha li boloke feela matla le ho thatafala ha mocheso o phahameng, empa hape li hanela oxidation le ho chesa ho chesang, ka tsela eo ho lelefatsa bophelo ba tšebeletso ea meqolo.
Ho e-na le hoo, mela e batang e etsoa ka mocheso kapa haufi le mocheso oa kamore, kahoo meqolo ha e hloke ho mamella mocheso o phahameng. Leha ho le joalo, nakong ea ts'ebetso e batang ea ho roala, ka lebaka la litlhoko tse phahameng tsa boleng ba holim'a lesela la tšepe, ho thatafala ha holim'a metsi le ho roala ho hanyetsa ha meqolo ho bohlokoa haholo. Lirolo tse batang hangata li entsoe ka lisebelisoa tse kang tšepe ea alloy tool, carbon tool steel kapa chrome plated steel. Lisebelisoa tsena li na le boima bo phahameng le ho hanyetsa ho apara, tse ka etsang bonnete ba hore holim'a li-roll ha li apesoe habonolo nakong ea tšebeliso ea nako e telele ea matla a phahameng, kahoo ho netefatsa boleng ba holim'a sehlahisoa.
Taba ea bobeli, mojaro le khatello ea meqolo holim'a serame le mela e chesang le e chesang li fapane. Mohala o chesang o hloka ho hatella li-billet tsa tšepe tse nang le mocheso o phahameng ho ea ka litlhaloso tse fapa-fapaneng tsa lipoleiti tsa tšepe, 'me meqolo e hloka ho mamella khatello e kholo le tšusumetso, kahoo thepa e hlokahalang ho ba le matla a phahameng le ho tiea ho hotle. Mohala o batang, ka lebaka la ho etsoa ka mocheso o tlase, o na le matla a phahameng a ho kuta le likhohlano holim'a meqolo. Ka hona, khetho ea thepa ea li-roll rolling tse batang e shebana haholo le ho hanyetsa ha bona ho apara le ho hanyetsa mokhathala.
Ntle le moo, ts'ebetso ea tlhahiso ea meqolo e batang hangata e kenyelletsa lits'ebetso tse ngata tsa kalafo ea holim'a metsi, joalo ka chrome plating, quenching, joalo-joalo, ho ntlafatsa le ho feta ho thatafala ha bona holim'a sefahleho le ho hanyetsa ho roala. Leha ho le joalo, ka lebaka la ho sebetsa libakeng tse nang le mocheso o phahameng, mekhoa ena ea phekolo ea holim'a metsi ha e tšoanelehe bakeng sa li-roll rolling tse chesang. Ho e-na le hoo, ts'ebetso ea bona e ntlafatsoa ka motsoako oa alloy le mokhoa oa ho phekola mocheso oa thepa ka boeona.
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.
Nako ea poso: Jul-01-2024
