Kugadzira mutswe idambudziko rakajairika mumalaser cladding maitiro, anowanzo kukanganisa kunaka uye kusimba kweiyo clad layer. Kunzwisisa zvinokonzeresa uye kuita matanho ekudzivirira anoshanda kwakakosha kuti uwane mhedzisiro yakanaka. Uyezve, kuchengetedza basa rakakodzera remvura inotonhorera kwakakosha, sezvo kutonhora kukundikana kunogona kuwedzera zvakanyanya njodzi yekutsemuka.
Zvakajairwa Zvinokonzera Kutsemuka muLaser Cladding
1. Thermal Stress:
Chimwe chezvikonzero zvinokonzeresa kutsemuka kushushikana kwekupisa kunokonzerwa nekusawirirana kweiyo coefficient yekuwedzera kwekushisa (CTE) pakati peiyo base zvinhu uye cladding layer. Munguva yekutonhora, kushushikana kwekushushikana kunokura pane interface, kuwedzera mukana wekutsemuka.
2. Rapid Cooling:
Kana mwero wekutonhodza uchimhanya zvakanyanya, kushushikana kwakasara mukati mechinhu hakugone kuburitswa zvine mutsindo, zvichitungamira mukuumbwa kwekutsemuka, kunyanya mukuoma kwakanyanya kana brittle zvinhu.
3. Material Properties:
Ngozi yekutsemuka inowedzera kana uchishandisa ma substrates ane kuoma kwakanyanya (semuenzaniso, kudzima kana carburized/nitrided materials) kana poda dzine kuomarara zvakanyanya kana kusaenderana. Masubstrates ane matinji ekuneta kana kusaenderana kwemhando yepamusoro anogonawo kubatsira mukutsemuka.
Kudzivirira Matanho
1. Optimizing Process Parameters:
Kunyatso gadzirisa simba relaser, kumhanyisa kumhanya, uye hupfu hwehupfu hunobatsira kudzora tembiricha yekunyunguduka kwedziva uye mwero wekutonhora, kuderedza kupisa kwemagetsi uye njodzi yekutsemuka.
2. Preheating uye Controlled Kutonhora:
Preheating iyo base zvinhu uye kushandisa zvishoma, inodzorwa kutonhora post-cladding inogona kubatsira kudzoreredza kushushikana kwasara, kudzikisa mukana wekuvandudza crack.
3. Kusarudza iyo Right Powder Material:
Kusarudza hupfu hunoenderana nehwaro zvinhu mumafuta ekuwedzera zvivakwa uye kuoma kwakakosha. Kudzivisa kuoma kwakanyanya kana kusawirirana kwemafuta kunoderedza kushushikana kwemukati uye kuumbwa kwekuputika.
Mhedzisiro yeChiller Kutadza paCrack Formation
A
chiller mvura
inoita basa rakakosha mukudziya kwekutonga kwelaser cladding midziyo. Kana iyo
chiller mvura
anokundikana
, inogona kutungamira mukupisa kweiyo laser sosi kana zvakakosha zvikamu, kukanganisa kugadzikana kwemaitiro. Kuwedzeredza kunogona kushandura kunyunguduka kwedziva uye kuwedzera zvakanyanya kusara kunetseka mune izvo zvinhu, zvichibatsira zvakananga mukugadzira kutsemuka. Kuve nechokwadi chekuvimbika chiller kuita kwakakosha pakuchengetedza kunaka kwekupfeka uye kudzivirira kukanganisa kwechimiro.
Mhedziso
Kutsemuka muLaser cladding kunogona kudzikiswa zvinobudirira nekugadzirisa kushushikana kwekupisa, kusarudza zvinhu zvakakodzera, uye kuchengetedza yakagadzikana kutonhora mamiriro. Iyo yakavimbika mvura chiller chikamu chakakosha cheiyo system, inobatsira kuve nechokwadi chekudzora tembiricha uye kuvimbika kwemidziyo yenguva refu.
![Causes and Prevention of Cracks in Laser Cladding and the Impact of Chiller Failures]()