Ndezvipi zvinodiwa zvesimbi mu induction kudziya choto kudzima?

Iyo simbi yekudzima mukati induction kupisa chira kazhinji ine zvinotevera zvinodiwa:

1) Iyo kabhoni yezvinhu yesimbi inotemerwa nemamiriro ekushanda ezvikamu, uye w (C) inogona kuve 0.15% kusvika 1.2%, chinova chinhu chakakosha kwazvo.

2) Iyo simbi inofanirwa kuve neyakajairwa yezviyo zveaustenite zvisiri nyore kukura, uye simbi yakanyatsonaka ine tsanga inofanira kusarudzwa.

3) Iyo simbi inofanirwa kuve neakanaka uye akapararira echinyakare mamiriro sezvinobvira. Izvo zvataurwa pamusoro, 2) uye 3) mamiriro maviri anoita kuti simbi iwane tsanga dzakanaka dzeaustenite uye tembiricha yepamusoro yekukura kwezviyo panguva yekupisa. Izvi zvinonyanya kukosha panguva yekudziya induction, nekuti kupisa induction kwakakwirira kupfuura kupisa kwekupisa muvira. , Zvakanyanya kuomarara kudzora chaiyo tembiricha. Parizvino, mukuru induction kupisa chira kudzima simbi, saizi yezviyo inodzorwa pa5 kusvika 8.

Induction Heating furnace quenching ine zvido zvekutanga kupisa kurapwa kwesimbi. Kana yekutanga kupisa kurapwa yadzimwa uye yakapfava iyo imwechete simbi zvinhu, sezvo sorbite iri yakanaka kwazvo chimiro, iyo austenite shanduko ndiyo inokurumidza, uye inodiwa kupisa tembiricha ndiyo yakaderera, zvichikonzera kuomarara kunowanikwa Kwakakwirira kwazvo, kwakadzika kudzika yeyakaomeswa rukoko inogona kuwanikwa. Kana yekutanga kupisa kurapwa kuri kurongeka, iko kushandurwa kwemafuta epearlite muaustenite kunoda tembiricha yakakwira; apo chimiro chepakutanga chakakora flake pearlite uye hombe ferrite (hypoeutectoid simbi inokwenenzvera nyika), ipapo A yepamusoro kupisa tembiricha inodiwa. Kunyangwe zvakadaro, nekuda kwenguva pfupi yekupisa nguva, kucharamba kune isina kugadziriswa ferrite muchimiro chakadzimwa. Kana uchidzima mukati mekupisa moto muvira, kuomarara kwesimbi kuchiri kuita basa. Saizvozvowo, kana iyo yekudziya yakatetepa yakadzika, iyo yakanyatsogadzirisa chimiro, zvakanyanya kuomarara, uye zvinhu zvinokonzeresa zviri musimbi, senge Mn (manganese), Cr (chromium), Ni (nickel), Mo (molybdenum), nezvimwewo zvine simba pane kuomarara kwesimbi.

4) Yakasarudzika kabhoni zvemukati. Kune zvimwe zvikamu zvakakosha senge crankshafts, camshafts, nezvimwe, kana uchisarudza mamakisi esimbi, zvinowedzerwa zvinodiwa kune zvakasarudzika kabhoni zvemukati zvinowanzoiswa kumberi. 0.08% (senge 0.42% kusvika 0.50%) yakadzikiswa kusvika pa0.05% renji (senge 0.42% kusvika 0.47%), izvo zvinogona kudzikisira kukanganiswa kwekushanduka kwekabhoni pane kutsemuka kana shanduko yekudzika kwehurefu. Munyori akaongorora simbi makumi mashanu neshanu kubva kwakasiyana masosi ekudzimisa mu crankshaft mutsipa induction kudziya choto, uye akaona kuti pasi pechinhu chimwe chete ichi tsananguro, hudzamu hwerukoko hwakasiyana kwazvo. Icho chikonzero chakabatana neMn yezvinhu uye zvirimo zveCr uye Ni mune zvisakachena. . Uye zvakare, pakati pezvinhu zvisina kuchena zvesimbi yekunze, zvemukati zveCr neNi zvinowanzove zvakakwirira pane izvo zvesimbi yekumba. Naizvozvo, izvo zvinogumisa zvinowanzove zvakasiyana. Iyi poindi inofanira kubhadharwa kutarisisa.

5) Decarburization kudzika zvinodikanwa zvechando zvinotorwa simbi. Kana inotonhora yakakweva simbi inoshandiswa kudzima mu induction kupisa chira, pane zvinodiwa kune iyo yakazara decarburization kudzika pamusoro pechiso. Kazhinji, iyo yakazara decarburization kudzika kune yega divi inofanira kunge iri pasi pe1% yehupamhi hwebhawa kana ukobvu hwendiro yesimbi. Iko kuomarara kweakaonda kabhoni denderedzwa yakadzika kwazvo mushure mekudzima, saka inotonhora yakakwenenzverwa simbi inofanira kunge iri pasi kuti ibvise yakaonda kabhoni dura usati watarisa kuomesa kuomarara.