Process Application ye Yakakwira Frequency Quenching Zvishandiso paPiston Pini dzeMota Injini

Piston Pin (Zita reChirungu: Piston Pin) ipini yecylindrical yakaiswa pasiketi yepiston. Chikamu chayo chepakati chinopfuura nepaburi diki remusoro wetambo yekubatanidza kubatanidza pisitoni netambo yekubatanidza uye kutumira simba regesi rinotakurwa nepiston kuti ribatanidze. Kuti uderedze uremu, piston piston anowanzo gadzirwa nepamusoro-mhando alloy simbi uye akagadzirwa mhango. Chimiro chepini yeplug iri nyore kwazvo, chakanyanya chikobvu-chakakomberedzwa negomba silinda. Gomba remukati rine cylindrical chimiro, maviri-section truncated cone chimiro uye yakasanganiswa chimiro. Makomba ecylindrical ari nyore kugadzirisa, asi kuwanda kwepiston yepiston yakakura; huremu hwepistoni yepini yezvikamu zviviri-yakatemwa koni gomba idiki, uye nekuti nguva yekukotama yepini yepiston ndiyo yakakura pakati, iri padyo nedanda resimba rakaenzana, asi rakatemerwa. Kugadziriswa kwegomba kwakaoma. Muchigadziro ichi, piston yepiston ine yepakutanga yemukati gomba inosarudzwa.

Mamiriro ebasa:

(1) Pasi pemamiriro ekupisa kwepamusoro, mira yakasimba periodic kukanganisa, kukotama uye kuveura

(2) Iyo yepini yepamusoro inotakura kukwesha kukuru uye kupera.

1. Kukundikana kwemaitiro: nekuda kwekushungurudzika kweperiodic, kuneta kuputsika uye kupfeka kwakanyanya kwepamusoro kunoitika.

Performance zvinodiwa:

2. Piston yepiston inotakura yakakura periodic impact load pasi pemamiriro ekushisa kwepamusoro, uye nokuti piston inotenderera pakona duku mugomba repini, zvakaoma kuumba firimu remafuta ekuzora, saka mamiriro ekuzora haana kunaka. Nechikonzero ichi, piston yepiston inofanirwa kuve nekusimba kwakakwana, simba uye kupfeka kuramba, uye huwandu hunofanira kunge hudiki sezvinobvira. Pini negomba repini zvinofanirwa kuve nekujeka kwakakodzera uye kunaka kwepamusoro. Mumamiriro ezvinhu akajairika, kuoma kwepini yepiston kunonyanya kukosha. Kana piston yepiston yakakotama uye yakaremara, chigaro chepiston chepiston chinogona kukuvara;

(2) Iine zvakakwana kukanganisa kuoma;

(3) Iine simba rakanyanya kuneta.

3. Technical zvinodiwa

Piston piston technical zvinodiwa:

①Iyo yese pamusoro pepiston yepini yakabikwa, uye kudzika kweiyo carburized layer ndeye 0.8 ~ 1.2mm. Iyo carburized layer inofanirwa kuchinjika zvakafanana kune yakakosha chimiro pasina kamwe kamwe shanduko.

②Kuoma kwepamusoro ndeye 58-64 HRC, uye musiyano wekuoma pane imwechete piston piston inofanira kuva ≤3 HRC.

③Kuoma kwepiston yepini core ndeye 24 kusvika 40 HRC.

④ Iyo microstructure ye carburized layer yepiston yepiston inofanirwa kuve yakanaka tsono martensite, ichibvumira diki diki yakagovaniswa zvakaenzana granular carbides, uye isina tsono-yakafanana uye inoenderera network-yakafanana kugovera yemahara carbides. Chimiro chetsono chepakati chinofanira kunge chiri pasi-carbon martensite uye ferrite.

Mukupindura kune izvo zviri pamusoro zvinodiwa uye zvinodiwa, zvine musoro tekinoroji uye michina inodiwa. Mushure mekuvigwa, iyo carburized simbi piston pini inodzimwa uye nekudzikiswa pakadzika tembiricha. Piston mapini ane epamusoro pekuita zvinodiwa anobatwa neyechipiri kudzima uye kupisa. Chinangwa chekudzima kwekutanga ndechekubvisa network cementite mune simende layer uye kunatsa iyo yakakosha chimiro; chechipiri quenching ndiko kunatsa kupinza Layer sangano uye kuita permeable layer kuwana yakakwirira kuoma. Piston mapini ane epamusoro alloying zvinhu anofanirwa kurapwa cryogenic mushure mekuviga uye kudzima kudzikisa huwandu hwakachengetwa austenite mu carburized layer, kunyanya piston mapini anoda dimensional kugadzikana, uye cryogenic kurapwa kunodiwa kudzora yakachengetwa austenite huwandu.