Yintoni ukucima kunye nobushushu unyango lobushushu40Cr intsimbi?
I-40Cr iphucula ukuqina kwentsimbi, iphucula amandla ayo kunye nokuzinza kobushushu, kwaye ineempawu ezibalaseleyo zoomatshini.Izixhobo zokusebenza ezinemilinganiselo emikhulu ye-cross-sectional okanye uhlengahlengiso olubalulekileyo kufuneka lusebenzise i-Cr steel, kodwa i-Cr steel inodidi lwesibini lwe-tender brittleness.
Sifumana njani ukucinywa kunye nobushushu bonyango lwe-40Cr yokusebenza kunye nemimiselo eyahlukeneyo yekhadi lenkqubo yeparameter kumsebenzi wokwenene?
(1) Emva kokucima kunye nokufudumeza unyango lwe-40Cr workpieces, ukupholisa kweoli kufuneka kusetyenziswe.Intsimbi ye-40Cr ineempawu ezintle zokucima, inokuqiniswa ngokupholisa kwioli, kwaye ukuthambekela kwezinto zokusebenza ukuguqula kunye nokuqhekeka kuncinci.Nangona kunjalo, amashishini amancinci kunye naphakathi angatshisa izinto zokusebenza ezingantsonkothanga emanzini xa i-refueling iqinile, kodwa akukho zintanda zifunyenweyo.Nangona kunjalo, abasebenzi kufuneka balawule ngokungqongqo amanzi kunye nobushushu bawo ngokusekelwe kumava.
(2) Emva kokufudumala, ukuqina kwe-40Cr workpiece kusephezulu, kwaye iqondo lokushisa lesibini kufuneka linyuswe ngo-20-50.Ngaphandle koko, kunzima ukunciphisa ubunzima.
(3) Emva kobushushu obuphezulu be-40Cr workpieces, iimilo ezintsonkothileyo zipholile kwi-oyile kwaye ngokulula emanzini ukuphepha impembelelo yohlobo lwesibini lwe-teering brittleness.I-workpiece emva kokufudumala ngokukhawuleza kunye nokupholisa kufuneka kuphathwe ngoxinzelelo loxinzelelo ukuba kuyimfuneko.Kukho izinto ezintathu ezichaphazela umgangatho we-workpiece ehlengahlengisiweyo, kwaye inqanaba lomqhubi liyinto ebalulekileyo.Kukho nezizathu ezahlukeneyo ezifana nezixhobo, izixhobo, kunye nokulungiswa kwangaphambili.Sikholelwa ukuba (1) isantya sesixhobo sokusebenza esisuka kwiziko ukuya kwitanki yokupholisa siyacotha, kwaye iqondo lobushushu lesixhobo sokusebenza esingena emanzini liye lehla ngaphantsi kwendawo ebaluleke kakhulu ye-Ar3, nto leyo ebangele ukubola ngokuyinxenye kunye ne-microstructure engaphelelanga ye-workpiece. , engahambelani neemfuno zobunzima.Ke ngoko, i-coolant yamacandelo amancinci kufuneka ithathele ingqalelo isantya, ngelixa ii-workpieces ezinkulu zipholile, kuyafuneka ukubamba ixesha.2Xa i-workpiece idibanisa enye kwenye, ukufudumeza akulingani kwaye ubunzima abulingani.(3) Ilungiselelo lokungena kwamanzi kwindawo yokusebenza kufuneka ligcinwe kumgama othile.Ngenxa yokuqina kakhulu, ifilimu yomphunga kufuphi ne-workpiece iphukile kwaye ithintelwe, okubangelwa ubunzima obuphantsi bomgangatho womsebenzi.(4) Ukuvula iziko lokucima umlilo akunakucima ngokupheleleyo kanye.Kuyimfuneko ukucima i-furnace midway kwaye uphinde uhlaziye ngokuhambelana neqondo lokushisa lokunciphisa kwisithando somlilo.Ubunzima bezinto zokusebenza zangaphambili nasemva emva kokucima kufuneka zihambelane.(5) Nika ingqalelo kubushushu bamanzi okupholisa.I-10% yamanzi anetyuwa ngaphezu kwama-60 ayinakusetyenziswa.Amanzi okupholisa kufuneka angabi nabumdaka obufana neoyile nodaka.Ngaphandle koko, ubunzima obunganelanga okanye obungalinganiyo bunokwenzeka.(6) Ubunzima bokulungelelaniswa okungalinganiyo kwezithuba ezingalungiswanga.Ukuphumeza umgangatho olungileyo wohlengahlengiso, izinto ezikrwada kufuneka zibe yiti erhabaxa, kwaye ilulwane kufuneka lisetyenziswe.(7) Emva kokulawulwa kwekhwalithi engqongqo, ubunzima buyancipha ngeeyunithi ze-1-3 emva kokucima, kwaye ubushushu bokufudumala bunokulungelelaniswa ukuhlangabezana neemfuno zobunzima.Nangona kunjalo, emva komlilo, ubulukhuni be-workpiece babuphantsi kakhulu, kwaye kuphela i-HRC250000 ukuya kwi-350000 inokuvutha kwakhona.Akunakwenzeka nje ukongeza ubushushu obuphakathi okanye obuphantsi ukuhlangabezana neemfuno zomzobo.Ngaphandle koko, ukubaluleka komlawuli kuya kulahleka, okubangelwa yimiphumo emibi.
Ixesha lokuposa: Oct-08-2023