Xa kuziwa kwi-castings yensimbi ekwazi ukumelana nobushushu, kufuneka sikhankanye imboni yonyango lobushushu; xa kufikwa kunyango lobushushu, kufuneka sithethe ngemililo emithathu yamashishini, ukucima, ukucima, kunye nokufudumeza. Ngoko ke yintoni umahluko phakathi kwezi zintathu?
(Nye). Iintlobo ze-annealing
1. Gqibezela i-annealing kunye ne-isothermal annealing
I-annealing epheleleyo ikwabizwa ngokuba yi-recrystallization annealing, ebizwa ngokuba yi-annealing. Le annealing ikakhulu isetyenziselwa castings, forgings kunye neeprofayili hot-rolled ezahlukeneyo carbon steels kunye nentsimbi ingxubevange kunye nokuqamba hypoeutectoid, kwaye ngamanye amaxesha isetyenziselwa izakhiwo welded. Isetyenziswa ngokubanzi njengonyango lokugqibela lobushushu kwezinye izinto ezingabalulekanga, okanye njengonyango lwangaphambili lwezinye izinto zokusebenza.
2. Ukukhutshwa kwe-spheroidizing annealing
I-Spheroidizing annealing isetyenziswa ikakhulu kwi-hypereutectoid carbon steel kunye ne-alloy tool steel (ezifana neentlobo zentsimbi ezisetyenziselwa ukwenza izixhobo zokusika, izixhobo zokulinganisa, kunye nokubumba). Injongo yayo ephambili kukunciphisa ubulukhuni, ukuphucula ukunyanzeliswa, kunye nokulungiselela ukucima okulandelayo.
3.Ukunciphisa uxinzelelo loxinzelelo
Ukunciphisa ubushushu boxinzelelo kukwabizwa ngokuba kukuthoba ubushushu obuphantsi (okanye ubushushu obuphezulu). Olu hlobo lwe-annealing lusetyenziselwa ukuphelisa uxinzelelo olushiyekileyo kwi-castings, i-forgings, i-welding parts, iinxalenye ezishushu eziqengqelekayo, iindawo ezitsalwa ngokubanda, njl njl. ixesha elithile okanye ngexesha leenkqubo zokusika ezilandelayo.
(Mbini). Ukucima
Iindlela eziphambili ezisetyenziselwa ukuphucula ubulukhuni kukufudumala, ukugcina ubushushu, kunye nokupholisa ngokukhawuleza. Amajelo okupholisa asetyenziswa ngokuqhelekileyo yibrine, amanzi kunye neoli. I-workpiece ecinywe emanzini anetyuwa kulula ukufumana ubunzima obuphezulu kunye nomphezulu ogudileyo, kwaye ayithandeki kwiindawo ezithambileyo ezingacinywanga, kodwa kulula ukubangela ukuguqulwa okukhulu kwendawo yokusebenza kunye nokuqhekeka. Ukusetyenziswa kweoli njengendlela yokucima ifanelekile kuphela ukucima ezinye iintsimbi ze-alloy okanye i-carbon carbon steel workpieces encinci apho ukuzinza kwe-supercooled austenite kukhulu kakhulu.
(Ntathu). Ukufudumeza
1. Ukunciphisa i-brittleness kunye nokuphelisa okanye ukunciphisa uxinzelelo lwangaphakathi. Emva kokucima, iinxalenye zetsimbi ziya kuba noxinzelelo olukhulu lwangaphakathi kunye ne-brittleness. Ukuba abacaphuki ngexesha, iindawo zentsimbi ziya kuhlala zigqwethekile okanye ziqhekeke.
2. Fumana iipropati ezifunekayo zomatshini we-workpiece. Emva kokucima, i-workpiece inobunzima obuphezulu kunye ne-brittleness ephezulu. Ukuze kuhlangatyezwane neemfuno zokusebenza ezahlukeneyo zezixhobo zokusebenza ezahlukeneyo, ubulukhuni bungahlengahlengiswa ngokufudumeza okufanelekileyo, ukunciphisa ubuqhophololo kunye nokufumana ukuqina okufunekayo. Iplastiki.
3. Ubungakanani be-workpiece ezinzileyo
4. Kwezinye iintsimbi ze-alloy ezinzima ukuthambisa nge-annealing, ukushisa okuphezulu kweqondo lokushisa kudla ngokusetyenziswa emva kokucima (okanye ukuqhelekileyo) ukuqokelela ngokufanelekileyo i-carbides kwintsimbi kunye nokunciphisa ubunzima bokuququzelela ukusika.
Ixesha lokuposa: Apr-10-2024