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Lisosa le Thibelo ea Maqhetsoana ka Laser Cladding le Tšusumetso ea ho Faliha ha Chiller

Mapetso a li-laser cladding a bakoa haholo ke khatello ea mocheso, ho pholisa ka potlako, le thepa e sa lumellaneng. Mehato e thibelang e kenyelletsa ho ntlafatsa likarolo tsa ts'ebetso, ho futhumatsa pele, le ho khetha li-powders tse loketseng. Ho hloleha ha chiller ea metsi ho ka lebisa ho futhumala le ho eketseha ha khatello ea maikutlo, ho etsa hore pholiso e tšepahalang e be ea bohlokoa bakeng sa ho thibela ho phatloha.

Ho thehoa ha Crack ke phephetso e tloaelehileng lits'ebetsong tsa laser cladding, hangata e amang boleng le ho tšoarella ha lera la seaparo. Ho utloisisa lisosa le ho kenya ts'ebetsong mehato e sebetsang ea thibelo ke habohlokoa bakeng sa ho fumana liphello tse nepahetseng. Ho feta moo, ho boloka ts'ebetso e nepahetseng ea mochini o futhumatsang metsi ho bohlokoa, kaha ho se pholile ho ka eketsa kotsi ea ho phatloha.

Lisosa tse Tloaelehileng tsa Mapetso ka Laser Cladding

1. Khatello ea Mocheso: E 'ngoe ea lisosa tse ka sehloohong tsa ho phatloha ke khatello ea mocheso e bakoang ke ho se lumellane ho coefficient of thermal expansion (CTE) pakeng tsa thepa ea motheo le lera la ho roala. Nakong ea pholileng, khatello ea maikutlo e ba teng ka har'a sehokelo, e eketsa menyetla ea ho phatloha.

2. Pholiso e Potlakileng: Haeba sekhahla sa ho pholisa se potlakile haholo, khatello e setseng ka har'a thepa e ke ke ea lokolloa ka katleho, e lebisang ho thehoa ha crack, haholo-holo ka thepa e thata haholo kapa e brittle.

3. Thepa ea Lintho: Kotsi ea Crack e eketseha ha u sebelisa li-substrates tse thata haholo (mohlala, tse tingoeng kapa tse entsoeng ka carburized/nitrided) kapa phofo e thata haholo kapa e sa tsamaisaneng hantle. Li-substrates tse nang le likarolo tsa mokhathala kapa boleng bo sa tsitsang ba bokaholimo le tsona li ka kenya letsoho ho pepeneng.

Mehato ea Thibelo

1. Optimizing Process Parameters: Ho lokisa ka hloko matla a laser, lebelo la ho skena, le sekhahla sa phepelo ea phofo ho thusa ho laola mocheso oa letamo le qhibilihang le sekhahla sa ho pholisa, ho fokotsa likhahla tsa mocheso le kotsi ea ho phatloha.

2. Ho futhumatsa le ho Laola Pholiso: Ho futhumatsa lisebelisoa tsa motheo le ho sebelisa butle, ho laoloa ho pholisa ka mor'a ho koala ho ka thusa ho imolla khatello ea kelello e setseng, ho theola monyetla oa nts'etsopele ea crack.

3. Ho Khetha Thepa e nepahetseng ea Powder: Ho khetha li-powders tse lumellanang le thepa ea motheo ea thepa ea ho atolosa mocheso le boima bo bohlokoa. Ho qoba ho thatafala ho feteletseng kapa ho se lumellane ha mocheso ho fokotsa khatello ea kelello ka hare le ho thehoa ha crack.

Tšusumetso ea ho hloleha ha Chiller ho Crack Formation

A chiller ea metsi  e bapala karolo ea bohlokoa taolong ea mocheso oa lisebelisoa tsa laser cladding. Haeba e chiller ea metsi hloleha , e ka lebisa ho feteletseng ha mohloli oa laser kapa likarolo tsa bohlokoa, ho senya botsitso ba ts'ebetso. Ho chesa ho feta tekano ho ka fetola melt pool dynamics le ho eketsa haholo khatello ea kelello linthong tse bonahalang, ho kenya letsoho ka ho toba ho thehoa ha crack. Ho netefatsa ts'ebetso e tšepahalang ea chiller ho bohlokoa ka hona ho boloka boleng ba liaparo le ho thibela mefokolo ea sebopeho.

Qetello

Mapetso a laser cladding a ka fokotsoa ka katleho ka ho laola khatello ea mocheso, ho khetha lisebelisoa tse loketseng, le ho boloka maemo a pholileng a tsitsitseng. Mocheso o tšepahalang oa metsi ke karolo ea bohlokoa ea sistimi, e thusang ho netefatsa taolo e tsitsitseng ea mocheso le ts'epo ea nako e telele ea lisebelisoa.

Causes and Prevention of Cracks in Laser Cladding and the Impact of Chiller Failures

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