Chii chinonzi quenching uye tempering kupisa kurapwa40Cr simbi?
40Cr inovandudza kuoma kwesimbi, inowedzera simba rayo uye kugadzikana kwekudzikama, uye ine yakanakisa michina zvinhu.Zvishandiso zvine hukuru hwemuchinjikwa-sectional dimensions kana zvakakosha kugadzirisa kunofanira kushandisa Cr simbi, asi Cr simbi ine yechipiri mhando yehasha brittleness.
Tinoona sei kudzimisa uye kudziyisa kupisa kurapwa kwe40Cr workpieces uye akasiyana parameter process kadhi mirau mubasa chairo?
(1) Mushure mekudzima uye kupisa kupisa kurapwa kwe40Cr workpieces, kutonhora kwemafuta kunofanirwa kushandiswa.40Cr simbi ine yakanaka yekudzima zvivakwa, inogona kuomeswa nekutonhodzwa muoiri, uye maitiro ezvishandiso zvekukanganisa nekutsemuka idiki.Nekudaro, mabhizinesi madiki uye epakati-saizi anogona kubatidza asina kuomesesa maumbirwo emabasa mumvura kana refueling yakaoma, asi hapana makatsemuka anowanikwa.Nekudaro, vashandi vanofanirwa kunyatso kudzora mvura uye tembiricha yayo zvichienderana neruzivo.
(2) Mushure mekupisa, kuomarara kwe40Cr workpiece kuchiri kwakakwira, uye tembiricha yekudziya yechipiri inofanira kuwedzerwa ne20-50.Kana zvisina kudaro, zvakaoma kuderedza kuoma.
(3) Mushure mekupisa kwekupisa kwe40Cr workpieces, maumbirwo akaomarara anotonhodzwa mumafuta uye ari mumvura kuti adzivise kukanganisa kwerudzi rwechipiri rwekupisa brittleness.Iyo workpiece mushure mekukurumidza kupisa uye kutonhora kunofanirwa kurapwa nekunetseka kwekunetseka kana zvichidikanwa.Pane zvinhu zvitatu zvinokanganisa kunaka kweiyo yakagadziridzwa workpiece, uye nhanho yeanoshanda chinhu chakakosha.Kune zvakare zvikonzero zvakasiyana senge midziyo, zvigadzirwa, uye pre kugadzirisa kugadzirisa.Isu tinotenda kuti (1) kumhanya kweiyo workpiece inofamba kubva muchoto ichienda kune inotonhorera tangi inononoka, uye tembiricha yebasa inopinda mumvura yakadzikira pazasi penzvimbo yakakosha yeAr3, zvichikonzera kuparara kwechidimbu uye isina kukwana microstructure yeworkpiece. , iyo isingasviki nezvinodiwa zvekuoma.Naizvozvo, iyo inotonhorera yezvikamu zvidiki inofanirwa kutarisisa kumhanya, nepo kuti mahombe ekushanda atonhore, zvakakosha kubata nguva.(2) Kuwanda kwechoto chekunyunguduka kwechishandiso kunofanirwa kuve kwakaringana, ne1-2 akaturikidzana akakodzera.Kana iyo workpiece inopindirana nemumwe, kupisa hakuna kuenzana uye kuoma hakuna kuenzana.(3) Kurongeka kwemvura ingress muworkpiece inofanira kuchengetwa pane imwe nzvimbo.Nekuda kwekunyanya kuomeswa, iyo mhute firimu iri padhuze neworkpiece yakaputsika uye inovharirwa, zvichikonzera kuderera kwepamusoro kuoma kweiyo workpiece.(4) Kuvhura choto chokudzima hakugoni kudzima zvachose panguva imwe chete.Izvo zvinodikanwa kudzima choto chepakati uye kupisa zvakare maererano nedhigirii yekuderera kwekushisa muchoto.Iko kuoma kwepamberi uye kumashure workpieces mushure mekudzima kunofanirwa kuenderana.(5) Ngwarira kutonhora kwemvura inotonhorera.10% yemvura ine saline pamusoro pe60 haigone kushandiswa.Mvura inotonhorera inofanira kunge isina tsvina yakaita semafuta nemadhaka.Zvikasadaro, kusakwana kana kusaenzana kuoma kunogona kuitika.(6) Kusaenzana kugadzirisa kuoma kwezvisina kugadziriswa.Kuti uwane kunaka kwekugadzirisa, iyo mbishi inofanirwa kuve yakakasharara tii, uye chiremwaremwa chinofanirwa kudzidziswa.(7) Mushure mekutonga kwakasimba kwemhando, kuomarara kunoderera ne1-3 mayunitsi mushure mekudzima, uye tembiricha yekupisa inogona kugadziridzwa kuti isangane nekuoma zvinodiwa.Nekudaro, mushure memoto, kuoma kweiyo workpiece kwaive kwakadzikira, uye chete HRC250000 kusvika 350000 yaigona kubatidzwa zvakare.Izvo hazvigoneke chete kuwedzera yepakati kana yakaderera tembiricha kusangana nezvinodiwa zvekudhirowa.Kana zvisina kudaro, kukosha kwemutongi kucharasikirwa, zvichiguma nemigumisiro yakakomba.
Nguva yekutumira: Oct-08-2023