Hot Rolled Karfe Coil Q195 Q215 St37 S235jr S355jr Ss400 Karfe Coil Babban ingancin Carbon Karfe Coil

Tsarin samarwa na zafi-birgimakarfen karfemabuɗin haɗin gwiwa ne a masana'antar ƙarfe. Ya fi samar da billet ɗin ƙarfe zuwa siffar farantin da ake buƙata ta hanyar jujjuyawar zafi mai zafi. Wadannan su ne ainihin matakansa:

Danyen Kayan Shiri
Ana ci gaba da simintin simintin gyare-gyare ko fure-fure azaman albarkatun ƙasa, yawanci tare da kauri na 150-300 mm.
Ana tsabtace saman dutsen (misali, tsaftacewar harshen wuta ko niƙa na inji) don cire ma'auni da lahani don tabbatar da ingancin mirgina.
Dumama
Ana ciyar da dutsen a cikin tanderun katako mai tafiya kuma a yi zafi zuwa 1100-1300 ° C don isa ga zafin jiki da inganta yanayin filastik.
Ana sarrafa lokacin dumama da daidaiton zafin jiki don guje wa zafi mai zafi ko ƙasa da ƙasa.
Tashin hankali
An rage kauri zuwa kauri na 30-50 mm a cikin injin niƙa mai juyawa (misali, niƙa mai tsayi biyu ko huɗu) don samar da tsaka-tsaki.
Bayan kowace wucewar birgima, za a iya yin jujjuyawar ruwa mai matsa lamba don cire saman oxide Layer.
Ƙarshe
Matsakaicin mashaya yana shiga injin karewa (yawanci yana kunshe da manyan injina shida ko bakwai hudu ko shida) inda a hankali aka rage shi zuwa kauri (misali, 1.2-25 mm) ta ci gaba da birgima. Ana amfani da Ikon Ma'auni ta atomatik (AGC) da tsarin kula da siffa don tabbatar da daidaiton girman da faɗi.
A yayin aikin birgima, naɗaɗɗen na buƙatar sanyaya da lubrication don hana lalacewar zafi da lalacewa.
Sanyi
Ana amfani da tsarin sanyaya laminar don saurin kwantar da tsiri na karfe daga zafin mirgina na ƙarshe (kimanin 800 ° C) zuwa zafin ɗaki ta hanyar sarrafa ƙarar ruwa da yawan sanyaya (misali, 30-50°C/second).
Tsarin sanyaya kai tsaye yana rinjayar microstructure (misali, rabon ferrite zuwa pearlite) da kaddarorin inji na nada karfe.
Nadi
Ana naɗe tsiri na ƙarfe a cikin coil ta amfani da naɗaɗɗen tsutsa da na'ura. Ana sarrafa tashin hankali a 100-500 N/mm² don tabbatar da madaidaicin siffa kuma babu sako-sako da coils.
Yawan zafin jiki na murɗawa ana sarrafa shi tsakanin 550-700°C don haɓaka aiki.
Bayan-Processing
Maganin saman: Zaɓe don cire ma'aunin oxide, ko sutura kamar galvanizing ko alumini.
Annealing: Inganta ductility abu (misali, recrystallization annealing kafin sanyi mirgina). Flattening: Ta hanyar mirgina tare da ƙarancin ragi, muna kawar da filaye masu yawan amfanin ƙasa kuma muna haɓaka ƙarewar ƙasa.
Ingancin dubawa da marufi: Muna bincika girma, kaddarorin inji, da ingancin saman, sa'an nan kuma naɗa, damfara, da yiwa samfuran alama bisa ga ƙayyadaddun abokin ciniki.