I-back up roll ingumbumbulu oxhasa umsebenziqoqaFuthi yi-roll enkulu kakhulu futhi enzima kunazo zonke esetshenziselwa ukugaya amalunga. Le khasiqoqaingasekela okuphakathi nendawoqoqaNgenhloso yokugwema ukungcola komsebenzi womsebenzi futhi uthinte isivuno nekhwalithi yepuleti kanye ne-strip rolling mill. Izici zekhwalithi yomugqa wesipele zilulukhuni oluphakeme kakhulu, ukufana nobulukhuni obuhle kanye nesendlalelo esijulile somzimba we-roll, amandla amahle nokuqina komzimba wentamo kanye nomzimba we-roll. I-backup roll inokuvimbela okuphezulu nokumelana nokumelana, izingozi eziqinile. Ama-rolls wensimbi akhiwe nge-1000mm noma ngaphansi kwenziwa nge-86CRMM7 ne-9CR2MO. Okuqukethwe kwalo kwe-carbon kungu-0.80% kuya ku-0.95% no-cr okuqukethwe kungu-2% .Kungasetshenziselwa amamitha amancane. I-CR4 NE-CR5 Back Up Roll inokuqukethwe kwekhabhoni ngo-0.4% kuya ku-0.6% kanye nokuqukethwe kwe-4% kuya ku-5%, kufanelekile ngensimbi ephezulu yensimbi kanye ne-semi-high-speed umsebenzi wensimbi.

Kwamanye amamilimitha amancane, ama-reluc acebiwe wensimbi angu-1000mm noma ngaphansi kwenziwa nge-86crmov7 ne-9cr2mo, okuqukethwe kwayo kwekhabhoni kungu-0.80% kuya ku-2%.
Insimbi ye-CR4 ne-CR5 ROVLS ye-CR5 inokuqukethwe kwekhabhoni engu-0.4% kuya ku-0.6% kanye nokuqukethwe kwe-4% kuya ku-5%. Ukumelana okulukhuni, ukugqoka okunzima, okugqokwayo, ukumelana nokuvinjwa kanye nokulwa nezingozi zama-backup rolls ngokuyisisekelo kususa umkhathi we-roll yomzimba kanye nengozi ye-roll cutoff. I-CR4, ama-CR5 Steel Backup Roll alungele insimbi enesivinini esiphakeme kanye ne-semi-high-speed speek umsebenzi wensimbi.

Izici ze-High-Speed ​​Roll Roll (HSS Roll)

1 Izinhlobo ze-carbusides ekwakhekeni kwe-roll ikakhulukazi i-MC ne-M2C. Ukuqhathanisa ama-rolls wensimbi ye-ructile nge-high-nickel-chromium rolls, ivolumu edlula yensimbi iphakeme ngasikhathi sinye, esisindisa isikhathi sokushintshana ngokushintshanisa, ithuthukise ukusebenza kahle kokukhiqizwa.

2. I-High-Speed ​​Speed ​​Roll inokuqina okuhle okushisayo. Emazingeni okushisa okuqaqa, ingaphezulu le-roll linobunzima obuphakeme nokumelana okuhle kokugqoka.
Ama-roll wensimbi anesivinini esiphakeme anokuqina okuhle, futhi ubunzima obukhona obukhona emzimbeni we-roll kuya ngaphakathi kwesendlalelo sokusebenza kuyaqabukela ukuncipha, ngaleyo ndlela uqinisekise ukuthi ama-rolls anokugqokwa okuhle okuhle kusuka ngaphakathi.

3. Ngesikhathi sokusetshenziswa kwama-rolls wensimbi asheshe, ngaphansi kwezimo ezinhle zokupholisa, ifilimu elincanyana eliminyene lenziwa ebusweni bomzimba we-roll. Le filimu eyunifomu, emincane futhi eminyene ye-oxide ingaba khona isikhathi eside ngaphandle kokuwa, okwenza ama-rolls asheshe wensimbi agqoke kahle athuthukiswe kakhulu.

I-4. Ama-roll wensimbi ephakeme ane-coefficie enkulu yokunwetshwa kwezinto ezibonakalayo kanye nokusebenza okuhle okushisayo. Ama-HSS rolls ayaqhubeka nokuncipha ngenxa yokwanda kwezinto ezinesivinini esikhulu sensimbi ngokwazo. Ngesikhathi senqubo yokugoqa, ukuguqulwa kwe-groove egoqayo kuncane, futhi ukuguquguquka kosayizi wembobo kugcinwa isikhathi eside, ikakhulukazi lapho ugoqa ibha noma i-rebar, okulungele ukulawula ukubekezelela okungalungile kwezinto ezimbi.
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Isicelo
I-Bar Rolling Mill, i-Splitter Mill Rack, I-Wire-Speed ​​Wire ROD yokuqeda isigayo, isiqeshana se-strip esishisayo esishisayo, isigaba kanye nesigayo sensimbi egoqekile.