Umehluko phakathi komugqa wensimbi ogoqiwe oshisayo kanye nomugqa wensimbi ogoqiwe obandayo

Incazelo yomugqa wensimbi ogoqiwe oshisayo

Ububanzi bomugqa ogoqelwe ngokushisayo bungaphansi noma bulingana no-600mm, ugqinsi lwepuleti lensimbi elingu-0.35-200mm nogqinsi 1.2-25mm umucu wensimbi.

 

I-Hot Rolled Strip Market Positioning kanye Nokuqondisa Kwentuthuko

 

Insimbi egoqiwe eshisayo ingenye yezinhlobo eziyinhloko zemikhiqizo yensimbi, esetshenziswa kabanzi embonini, ezolimo, ezokuthutha kanye nokwakhiwa, futhi ngesikhathi esifanayo namakhaza asongwe,ipayipi elishiselwe, insimbi eyakhiwe ebandayo nezinye izinto zokusetshenziswa zokukhiqiza umkhiqizo wayo ekukhiqizweni kwensimbi konyaka waseChina ngenani eliphelele lengxenye enkulu yendima eyinhloko ekukhiqizeni insimbi egoqiwe.

Emazweni athuthukile ngokwezimboni,ipuleti eligoqiwe elishisayokanye nensimbi ye-strip yabalelwa cishe ku-80% wesamba somkhiqizo wepuleti ne-strip steel, okubalwa ngaphezu kwama-50% omkhiqizo wensimbi usuwonke, kanye nasemqhudelwaneni wezimakethe zamazwe ngamazwe endaweni ehamba phambili.

E-China, imikhiqizo yensimbi evamile egoqelwe ngokushisayo, umkhawulo ophansi wogqinsi ongu-1.8mm, kodwa empeleni, bambalwa kakhulu abakhiqizi okwamanje abakhiqiza insimbi egoqelwe eshisayo enogqinsi olungaphansi kuka-2.0mm, ngisho noma umugqa omncane. , ubukhulu bomkhiqizo ngokuvamile bukhulu kuno-2.5mm.

Ngakho-ke, ingxenye enkulu yethemba lokuthi ukujiya komugqa ongaphansi kuka-2mm njengabasebenzisi bempahla eluhlaza, kufanele kusetshenziswe umucu ogoqiwe obandayo.

 

I-Cold Rolling Strip

Cold rolled steel strip: metal in the lokushisa recrystallization ngaphansi deformation rolling ibizwa ngokuthi abandayo rolling, ngokuvamile ibhekisela strip is hhayi ukushisisa futhi ekamelweni lokushisa inqubo eqondile rolling. Umugqa obandayo ogoqiwe ungase ushise uma uthintwa, kodwa usabizwa ngokuthi ukugoqwa okubandayo.

Ukukhiqizwa okugoqiwe okubandayo kunganikeza inani elikhulu lokunemba okuphezulu nokusebenza okuhle kakhulu kwepuleti lensimbi ne-strip, isici salo esibaluleke kakhulu izinga lokushisa eliphansi lokucubungula, uma kuqhathaniswa nokukhiqizwa kokugoqa okushisayo, kunezinzuzo ezilandelayo:

(1) Imikhiqizo yemigqa egoqelwe ebandayo inemba ngosayizi futhi iyunifomu ngokuqina, futhi umehluko ekujikeni komcu ngokuvamile awubi ngaphezu kuka-0.01-0.03mm noma ngaphansi, ongahlangabezana ngokugcwele nezidingo zokubekezelela okunembayo okuphezulu.

(2) Imichilo emincane kakhulu engakwazi ukukhiqizwa ngokugoqeka okushisayo ingatholakala (encane kakhulu ingaba ngu-0.001mm noma ngaphansi).

(3) Izinga elingaphezulu lemikhiqizo egoqiwe ebandayo liphakeme, awukho umucu ogoqiwe oshisayo ovame ukubonakala ugoba, ucindezelwe ku-iron oxide nokunye ukukhubazeka, futhi ungakhiqizwa ngokuya ngezidingo zomsebenzisi zokuma okuhlukile komugqa (ocwebezelayo). indawo engaphezulu noma enemigodi, njll.), ukuze kube lula ukucutshungulwa kwenqubo elandelayo.

(4) Insimbi egoqelwe ebandayo inezimfanelo ezinhle kakhulu zemishini kanye nezakhiwo zenqubo (njengamandla aphezulu, umkhawulo wesivuno esiphansi, ukusebenza kahle komdwebo ojulile, njll.).

(5) Ukuginqika okunesivinini esikhulu nokugingqika okugcwele okuqhubekayo kungenziwa, ngokukhiqiza okuphezulu.

Ukuhlukaniswa kwensimbi egoqiwe ebandayo

Cold roll roll steel ihlukaniswe yaba izinhlobo ezimbili: black and bright.

(1)umugqa omnyama we-anealed: Umugqa obandayo ogoqiwe ushisiswe ngokuqondile kuzinga lokushisa lokufafaza, umbala ongaphezulu ngenxa yokuchayeka kwezinga lokushisa eliphezulu kumnyama womoya. Izakhiwo ezibonakalayo ziyathamba, zivame ukusetshenziselwa umugqa wensimbi bese kuthi ingcindezi enwetshiwe, isitembu, ukuwohloka kokucubungula okukhulu okujulile.

(2) i-anealed strip ekhanyayo: futhi umnyama omnyama umehluko omkhulu ukuthi ukushisisa akuxhumani nomoya, nge-nitrogen namanye amagesi angenayo avikelwe, umbala ongaphezulu ukuze ugcinwe kanye nomugqa ogoqekayo obandayo, ngaphezu kokusetshenziswa kwe-annealed emnyama kuyasetshenziswa futhi ubuso bobuso be-nickel plating nokunye ukwelashwa okungaphezulu, okuhle nokuphanayo.

Insimbi yomugqa ogqamile kanye nomehluko wensimbi womugqa omnyama obunayo: izici zokulungisa zicishe zifane, insimbi yomugqa ogqamile ikunsimbi emnyama efiphalayo ngesisekelo sesinyathelo esingaphezu kwesisodwa sokwelashwa okukhanyayo.

Ukusetshenziswa: insimbi emnyama efiphalayo ivamise ukwenziwa imikhiqizo yokugcina ngaphambi kokulungela ukwenza ukunakekelwa kwezindawo ezithile, insimbi yomugqa okhanyayo ingagxivizwa ngokuqondile emikhiqizweni yokugcina.