• cpbj

Litšobotsi tsa ts'ebetso ea lisebelisoa tsa foam ea aluminium

1. Lintho tsa 'mele
Lisebelisoa tsa aluminium foamke tšobotsi ea bohlokoa ka ho fetisisa ea boima bo bobebe, boima bo tlaase, bo lekanang le boholo ba pore, matla a khoheli a khethehileng ke makhetlo a 0.1-0.6 feela a lekanang le molumo oa aluminium, empa ka makhetlo a fetang 4 ho feta lisebelisoa tsa foam. The conductivity ea thepa ea foam e nyenyane haholo ho feta aluminium e tiileng, ho fapana le hoo, khanyetso e kholoanyane, 'me ke mokhanni ea mobe. Thermal conductivity ea aluminium foam e nyane ka makhetlo a 0.1-0.2 ho feta ea aluminium e tiileng ea mantlha. Ho phaella moo, foam e boetse e na le melemo ea boima bo phahameng, bo sa cheng, ha ho bonolo ho oxidize, ha ho bonolo ho tsofala, ho hanyetsa boemo ba leholimo, ho bonolo ho bo sebelisa hape joalo-joalo.
Bakeng sa thepa e tlas'a meroalo e kobehang, thepa e sebelisoang e lokela ho ba le matla a phahameng, 'me ka ho bapisa litekanyetso tse khethehileng tsa matla le tsa foam ea aluminium le lisebelisoa tse ling tse tloaelehileng tsa meralo (aluminium le tšepe) (foam ea aluminium: tšepe = 5: 2.5: 1), ho ile ha fumanoa hore foam ea aluminium e na le litšobotsi tse phahameng tse khethehileng tsa matla. Liphuputso tsa liteko li bontšitse hore phekolo e nepahetseng ea mocheso e ka etsoa ho eketsa matla a eona. Kahoo, foam ea aluminium e ka mamella meroalo e meholo e kobehang.
2. Thepa ea mechine
The modulus ea elasticity, shear modulus, le rekere moeli oaaluminium foame fokotseha e le ts'ebetso ea exponential ka ho eketseha ha porosity;
Matla a tšepe; aluminium ea foam e na le matla a tlase a tsitsipano, bolelele bo tlase le ts'ebetso ea semi-brittle. Ho ile ha fumanoa hore boholo ba li-pores bo na le phello ea bohlokoa ho thepa e tsitsitseng. Ha boima bo lekanang bo lekana, matla a manyane a pore a maholo ho feta a boholo ba pore;
Matla a hatellang; matla a tsitsitseng a thepa ea foam a tlaase, empa matla a khatello a phahame; mothinya oa eona oa khatello ea maikutlo o ka aroloa ka sebaka se otlolohileng, sebaka se sephara sa lihlahisoa le sebaka se teteaneng. Foamed aluminium aperture fapaneng aperture compression khatello-strain mothinya sebopeho ha e le hantle e tšoanang, haholo-holo ka bophahamo ba sethaleng polasetiki, boholo ba lesoba e ke ke ea feela kamano linear, empa e lokela ho ba ka aperture e itseng mefuta e fapaneng ya ho finyella boleng bo phahameng ka ho fetisisa. . Foamed aluminium compression matla le segokanyipalo le compression lebelo la kamano pakeng tsa kerafo e bontša hore e kholoanyane density, le matla a compression;

Litšobotsi tsa ts'ebetso ea lisebelisoa tsa foam ea aluminium

3. Tšobotsi ea ho hula
Lisebelisoa tsa sebopeho sa porouse ka sebelisoa bakeng sa ho monya. Boima bo bonyenyane ba workshop bo phetha karolo e kholo matla a ho monya. Lisele tsa foam li nyane, li matla ebile li monya mocheso hantle. Thepa ea foam e na le sebaka se selelele sa khatello ea maikutlo nakong ea khatello mme e monya matla ka khatello tlas'a maemo a khatello ea maikutlo khafetsa. Matla a ho hula a hloka sebaka se tlas'a sekhahla sa khatello ea kelello, kahoo matla a ho hula a maholoanyane ha sethala sa lihlahisoa se phahame le se pharaletseng. Boholo ba pore bo na le phello e itseng bophahamong ba sethala sa ho fana, 'me ho khetha boholo bo loketseng ba pore ho ka ntlafatsa ho hoheloa ha sethala sa ho fana. Ho phaella moo, matla a eona a ho hula a fapana ka mokhoa o se nang monotonically le porosity, moo matla a ho hula a leng kholo ka ho fetisisa ho porosity e itseng.
4. Ts'ebetso ea damping
Ts'ebetso ea damping ke bokhoni ba thepa ea ho fetola matla a vibrate ea mochini hore e be matla a futhumetseng ka lebaka la mabaka a kahare. Thepa e ka sebelisoa ka botlalo ho fokotsa lerata le ho thothomela ho sa hlokahaleng. Mokhoa oa bohlokoa oa ho ntlafatsa ts'ebetso ea damping ea lisebelisoa tsa tšepe ke ho eketsa tšebelisano lipakeng tsa mefokolo ho fumana boholo ba linear damping le ho holisa mochini oa mochini ho eketsa damping e se nang moeli. Liphetho tsa liteko li bonts'a hore lisebelisoa tsa porous li lumellana le litšobotsi tsa tlhophiso tsa lisebelisoa tse kolobisitsoeng haholo, 'me boteng ba li-pores bo na le phello ea bohlokoa karabelong ea pholiso ea lisebelisoa tse ling tse se nang tšepe kapa tsa tšepe.


Nako ea poso: Nov-30-2023