High Quality Q235B Q345B Hot Rolled Karfe Coil Gina Kayan Gina

Tsarin samar da na'ura mai zafi mai zafi shine hanyar haɗin gwiwa a cikin masana'antar karfe. Ya fi samar da billet ɗin ƙarfe zuwa siffar farantin da ake buƙata ta hanyar jujjuyawa mai zafi. Waɗannan su ne ainihin matakansa:
Danyen Kayan Shiri
Yi amfani da billet ɗin ci-gaba ko billet na farko azaman ɗanyen abu, kuma kaurin billet yawanci 150-300mm.
Ana tsaftace billet ɗin saman (kamar tsabtace harshen wuta ko niƙa na inji) don cire sikelin oxide da lahani don tabbatar da ingancin birgima.
Dumama
Ana aika da billet ɗin zuwa tanderun dumama mataki da zafi zuwa 1100-1300 ℃ don sanya billet ɗin ya kai ga zafin jiki mai haɓakawa da haɓaka filastik.
Sarrafa lokacin dumama da daidaiton zafin jiki don gujewa wuce gona da iri ko rashin isasshen zafin jiki.
Rough Rolling
An rage kaurin billet ɗin zuwa 30-50mm ta wurin jujjuyawar niƙa mai jujjuyawa (kamar mirgine biyu ko mirgine huɗu) don samar da matsakaicin billet.
Za a iya yin jujjuyawar ruwa mai matsananciyar matsa lamba bayan kowace mirgina don cire saman oxide Layer.
Ƙarshen Birgima
Matsakaicin billet ɗin yana shiga cikin injin gamawa (yawanci 6-7-bidi-hudu ko mirgine-bididdige shida), kuma a hankali a hankali a kan kauri zuwa kauri (kamar 1.2-25mm) ta ci gaba da birgima.
Ana amfani da AGC (ikon kauri ta atomatik) da tsarin sarrafa nau'in farantin don tabbatar da daidaiton girman da madaidaiciyar siffar farantin.
Ana buƙatar sanyaya da man shafawa a lokacin mirgina don hana nakasar zafi da lalacewa.
Sanyi
Ana amfani da tsarin sanyaya laminar don saurin kwantar da tsiri na karfe daga zafin mirgina na ƙarshe (kimanin 800 ℃) zuwa zafin ɗaki ta hanyar sarrafa ƙarar ruwa da ƙimar sanyaya (kamar 30-50 ℃ / s).
Tsarin sanyaya kai tsaye yana rinjayar microstructure (kamar ferrite da pearlite rabo) da kaddarorin inji na nada karfe.
Nadi
Ana jujjuya tsiri na ƙarfe a cikin na'urar ƙarfe ta cikin abin nadi da coiler, kuma ana sarrafa tashin hankali a 100-500N/mm² don tabbatar da cewa sifar nada tana da ƙarfi kuma babu sako-sako da nada.
Yawan zafin jiki na coiling ana sarrafa shi a 550-700 ℃ don haɓaka aiki.
Magani na gaba
Maganin saman: pickling don cire oxide sikelin, ko galvanizing, aluminum plating da sauran shafi jiyya.
Annealing: inganta ductility abu (kamar recrystallization annealing kafin sanyi mirgina).
Lallashi: kawar da dandali na yawan amfanin ƙasa da inganta haɓakar ƙasa ta hanyar ƙananan raguwar mirgina.
Ingancin dubawa da marufi: duba girman, kayan aikin injiniya da ingancin farfajiya, da kuma yi, damfara da alama bisa ga bukatun abokin ciniki.