Post forging heat treatment of stainless steel forgings, also known as first heat treatment or preparatory heat treatment, is usually carried out immediately after the forging process is completed, and there are several forms such as normalizing, tempering, annealing, spheroidizing, solid solution, njl. njl. Siza kufunda malunga neqela labo.

Ukuqhelisela ubungcali: Eyona njongo iphambili kukuphucula ubungakanani beenkozo. Fudumeza ngaphezulu kobushushu beNguqu yeSigaba seNgqwa yeSigaba seSigaba sokuFumaneka kweSuausterite, usizinzisa emva kwexesha lobushushu obufanayo, kwaye emva koko uyisuse kwisiko lomoya wokuphola komoya. Ireyitha yokufudumeza ngexesha lokuqhelisela kufuneka icothe ngaphantsi kwe-700℃Ukunciphisa umahluko wamanzi angaphakathi nowangaphandle kunye noxinzelelo lwexesha elithile ekuthatheni. Kungcono ukongeza inyathelo le-isothermal phakathi kwe-650℃kunye ne-700℃; Kwiqondo lobushushu ngaphezulu kwe-700℃, ngakumbi ngaphezulu kwe-AC1 (inqaku lenguqu), inqanaba lokufudumeza oluzimeleyo lufanele lonyuswe ukufezekisa iziphumo ezingcono zokucoca. Uluhlu lobushushu lwe-proby luhlala luphakathi kwe-760℃kwaye i-950℃, ngokuxhomekeka kwindawo yenqanaba lenqanaba lenqanaba elinezinto ezahlukeneyo. Ngokwesiqhelo, iphantsi i-carbon kunye nomxholo we-alloy, ubushushu obuphakathi obuphakathi, kunye ne-vice. Amanye amabanjwa ensizi ekhethekileyo anokufikelela kwinqanaba lobushushu le-1000℃ukuya kwi-1150℃. Nangona kunjalo, ukutshintsha kwendlela yentsimbi engenasitayile kunye nezingeyongxaki kufezekiswa ngonyango oluqinileyo lwesisombululo.

Ukutsala: Eyona njongo iphambili kukwandisa i-hydrogen. Kwaye inokusenza sizinzisele kwakhona i-Microst yobuqu emva kokutshintsha kwengqokelela, kuphelisa uxinzelelo lwenguqu okwakhiweyo kunye nokunciphisa ubunzima, ukwenza izinto ezilusizileyo zilungele ukungcungcuthekiswa. Kukho amaqondo amaqondo amathathu eengcongconi ukuba amatetorho, angayifunwa ngamaqondo obushushu aphezulu (500℃~ 660℃), Amaqondo obushushu aphakathi alandela (350℃~ 490℃), kunye neqondo lobushushu eliphantsi (i-150℃~ 250℃). Ukuveliswa okuqhelekileyo kokuxolela okukhulu kwabayamkelekileyo. Ukutsalwa kwenziwe ngoko nangoko emva kokuqhelisela. Xa i-falls eqhelekileyo ipholile ipholile ukuya kwi-220℃~ 300℃, iphilisiwe, ivuthiwe, yafakwa kwiziko, yaza yaphola ukuya ngaphantsi kwe-250℃~ 350℃Kumphezulu wokunyanzelwa ngaphambi kokuba ukhutshwe kwiziko. Ireyithi yokupholisa emva kokuba umlinganiso kufuneka icothe ngokwaneleyo ukukhusela amabala amhlophe ngenxa yoxinzelelo olugqithisileyo ngexesha lenkqubo yokupholisa, kunye nokunciphisa uxinzelelo olunokwenzeka. Inkqubo yokupholisa idlahlulwe yahlulwahlulwahlulwa ibe ngamanqanaba amabini: ngaphezulu kwe-400℃, njengoko intsimbi ikwinqanaba lobushushu ngeplasitiki elungileyo kunye ne-Brictless ephantsi, ireyithi yokupholisa inokuba ngokukhawuleza kancinci; Ngaphantsi kwe-400℃, njengoko intsimbi ingene kuluhlu lobushushu olunengxaki enkulu yokubandayo kunye nobuchule, ireyithi yokupholisa icothayo kufuneka yamkelwe ukuphepha ukuqhekeza kwaye unciphise uxinzelelo olunempilo. Ngentsimbi enomdla kumabala amhlophe kunye nokuyilwa kwe-hydrogen, kuyimfuneko ukufumanisa ulwandiso lwexesha lokwandiswa kwe-hydrogen ngokusekwe kwi-hydrogen kunye ne-hydrogen ye-hydrogen kwintsimbi , kwaye uyinciphise kuluhlu lwamanani akhuselekileyo.

I-ANNALS: Iqondo lobushushu libandakanya lonke uluhlu lwezinto eziqhelekileyo kunye no-150℃~ 950℃), besebenzisa indlela yokupholisa iziko, efana nokwambatha. Ukunxibelelana nobushushu obufudumeleyo ngaphezulu kwenqanaba lotshintsho lwesigaba (ubushushu obuqhelekileyo) bubizwa ngokuba lube lukhona. I-Aneing ngaphandle kokutshintsha kwesigaba ibizwa ngokuba yiyo. Eyona njongo iphambili yokuthantamisa kukuphelisa uxinzelelo kwaye uzinze ubushushu obuphakathi, kubandakanya ukungcungcutheka kobushushu kunye nokuqulunqwa komsindo + njengoko kubandakanya ukutshintsha kwenqanaba elisebenzayo, njengoko kubandakanya ukutshintsha kwesikhundla esilula kunye nenguqu eseleyo, kunye neqondo lobushushu e-hydrogen yokwandiswa.