Umehluko phakathi kwe-hot rolled steel strip kanye ne-cold rolled steel strip

Incazelo yomugqa wensimbi ogoqwe ngokushisa

Ububanzi bomcu ogoqwe ngokushisa obungaphansi noma obulingana no-600mm, ubukhulu bepuleti lensimbi elingu-0.35-200mm kanye nobukhulu bomcu wensimbi ongu-1.2-25mm.

 

Ukuma Kwemakethe Eshisayo Egoqekile kanye Nesiqondiso Sokuthuthukiswa

 

Insimbi egoqwe ngomucu oshisayo ingenye yezinhlobo eziyinhloko zemikhiqizo yensimbi, esetshenziswa kabanzi embonini, kwezolimo, kwezokuthutha nakwezokwakha, futhi ngesikhathi esifanayo ne-cold rolled,ipayipi elihlanganisiwe, insimbi eyakhiwe ngokubandayo kanye nezinye izinto zokusetshenziswa zokukhiqiza umkhiqizo wayo ekukhiqizweni kwensimbi kwaminyaka yonke eShayina ngenani eliphelele lengxenye enkulu yendima evelele ekukhiqizweni kwensimbi egoqiwe.

Emazweni athuthukile kwezimboni,ipuleti eligoqiwe elishisayokanti insimbi ye-strip yayibalelwa cishe ku-80% womkhiqizo ophelele wepuleti nensimbi ye-strip, eyayibalelwa ngaphezu kuka-50% womkhiqizo ophelele wensimbi, futhi emncintiswaneni wemakethe yamazwe ngamazwe isendaweni ehamba phambili.

EShayina, imikhiqizo yensimbi ejwayelekile egoqwe ngokushisa, umkhawulo ophansi wobukhulu obungu-1.8mm, kodwa empeleni, bambalwa kakhulu abakhiqizi okwamanje abakhiqiza insimbi egoqwe ngokushisa enobukhulu obungaphansi kuka-2.0mm, noma ngabe umugqa omncane, ubukhulu bomkhiqizo ngokuvamile bukhulu kuno-2.5mm.

Ngakho-ke, ingxenye enkulu yethemba lokuthi ubukhulu bomugqa ongaphansi kuka-2mm njengabasebenzisi bezinto zokusetshenziswa, kufanele basebenzise umugqa ogoqiwe obandayo.

 

I-Cold Rolled Strip

I-Cold rolled steel strip: I-metal ekushiseni kwe-recrystallization ngaphansi kwe-rolling deformation ibizwa ngokuthi i-cold rolled, ngokuvamile ibhekisela ku-strip engashisi futhi inqubo yokugoqa eqondile ekushiseni kwegumbi. Umugqa ogoqwe ngokubandayo ungase ushise uma uwuthinta, kodwa usabizwa ngokuthi ugoqwe ngokubandayo.

Ukukhiqizwa okugoqiwe okubandayo kunganikeza inani elikhulu lokusebenza okunembile kakhulu nokusebenza okuhle kakhulu kwepuleti lensimbi kanye ne-strip, isici sayo esibaluleke kakhulu izinga lokushisa eliphansi lokucubungula, uma kuqhathaniswa nokukhiqizwa okugoqiwe okushisayo, kunezinzuzo ezilandelayo:

(1) Imikhiqizo yemicu egoqekile ebandayo inembile ngobukhulu futhi ifana ngobukhulu, futhi umehluko ekujikeni kwemicu ngokuvamile awudluli ku-0.01-0.03mm noma ngaphansi, okungahlangabezana ngokugcwele nezidingo zokubekezelelana okunembe kakhulu.

(2) Imicu emincane kakhulu engeke ikhiqizwe ngokugoqa okushisayo ingatholakala (emincane kakhulu ingaba ngu-0.001mm noma ngaphansi).

(3) Ikhwalithi yobuso bemikhiqizo egoqwe ngokubandayo ingcono kakhulu, ayikho i-hot rolled strip evame ukubonakala inezimbobo, icindezelwe ku-iron oxide kanye nezinye iziphambeko, futhi ingakhiqizwa ngokwezidingo zomsebenzisi zobukhulu obuhlukene bobuso be-strip (ubuso obucwebezelayo noma ubuso obunezimbobo, njll.), ukuze kube lula ukucutshungulwa kwenqubo elandelayo.

(4) Insimbi egoqekile ebandayo inezakhiwo ezinhle kakhulu zemishini kanye nezakhiwo zenqubo (njengokuqina okuphezulu, umkhawulo wesivuno ophansi, ukusebenza kahle kokudweba okujulile, njll.).

(5) Ukugingqa ngesivinini esikhulu kanye nokugingqa okugcwele okuqhubekayo kungabonakala, ngokukhiqiza okuphezulu.

Ukuhlukaniswa kwensimbi ye-strip egoqiwe ebandayo

Insimbi egoqwe ngomucu obandayo ihlukaniswe izinhlobo ezimbili: emnyama nekhanyayo.

(1)umugqa omnyama oqoshiwe: umugqa ogoqwe ngokubandayo ofudunyezwa ngqo ekushiseni okubandayo, umbala wobuso ngenxa yokuvezwa kokushisa okuphezulu emoyeni omnyama. Izakhiwo zomzimba ziyathamba, ngokuvamile zisetshenziselwa umugqa wensimbi bese kuba ukucindezela okweluliwe, ukunyathela, kanye nokuguqulwa kokucubungula okujulile okukhulu.

(2) umugqa okhanyayo oqoshiwe: kanye ne-black annealed umehluko omkhulu ukuthi ukushisa akuxhumene nomoya, i-nitrogen kanye namanye amagesi angasebenzi avikelwe, umbala wobuso ogcinwayo kanye nomugqa ogoqiwe obandayo, ngaphezu kwe-black annealed ukusetshenziswa kusetshenziselwa futhi ubuso bobuso be-nickel plating kanye nezinye izindlela zokwelapha ubuso, ezinhle futhi ezinomusa.

Umehluko wensimbi ecwebezelayo kanye nensimbi emnyama ecwebezelayo: izakhiwo zemishini zicishe zifane, insimbi ecwebezelayo isensimbini emnyama ecwebezelayo ngokusekelwe ezinyathelweni ezingaphezu kwesisodwa zokwelashwa okucwebezelayo.

Ukusetshenziswa: insimbi ye-strip emnyama enyamalalayo ngokuvamile yenziwa imikhiqizo yokugcina ngaphambi kosuku lokulungisa, insimbi ye-strip ekhanyayo inganyatheliswa ngqo emikhiqizweni yokugcina.