Kutheni i-metal foam ibiza kakhulu?

I-Metal foam, eyaziwa ngokuba yintsimbi edibeneyo, yinto eyenziwa yintsimbi eqinile kunye nenani elikhulu lemibhobho edibeneyo. Ezi pores azinikezi kuphela igwebu lesinyithi uphawu lwayo olukhaphukhaphu kunye nesakhiwo esinemingxuma, kodwa kunye neempawu zayo ezizodwa, ezifana nomlinganiselo ophezulu wamandla ukuya kubunzima, ukuchasana kwempembelelo egqwesileyo, kunye nokukwazi ukufunxa amandla. Ezi zakhiwo zenza amagwebu esinyithi abe yimathiriyeli enomtsalane kwiintlobo ngeentlobo zezicelo, kubandakanywa i-aerospace, i-automotive, i-mikhosi kunye ne-biomedical industry.

Ngoko kutheni isinyithi sogwebu sibiza kangaka? Ziliqela izinto ezinegalelo kwiindleko eziphezulu zesi sixhobo. Okokuqala, inkqubo yokuvelisa i-foam metal inzima kwaye iimfuno zobugcisa zihamba phambili. Eyona ndlela iqhelekileyo yokuvelisa i-foam yesinyithi kukusebenzisa umgubo wesinyithi kunye ne-agent ekhupha ugwebu, uzixube kunye, uze uzifudumeze ukudala amaqamza kwi-matrix yesinyithi. Inkqubo idinga ulawulo oluchanekileyo lobushushu, uxinzelelo kunye nokwakheka kweekhemikhali, okwandisa iindleko zokuvelisa.

Ukongezelela, izinto ezisetyenziselwa ukuvelisa amagwebu esinyithi zidla ngokubiza imali eninzi. Iipowder zetsimbi ezikumgangatho ophezulu kunye nee-agent ezinegwebu ziyimfuneko ekudaleni amagwebu esinyithi aneempawu ezifunekayo, kwaye ezi zixhobo zibiza kakhulu. Ukongeza, ukuveliswa kwe-foam yensimbi kudla ngokubandakanya amanyathelo amaninzi afana ne-powder metallurgy, i-foaming kunye ne-sintering, zonke ezifuna izixhobo ezikhethekileyo kunye nomsebenzi wezakhono, ukwandisa ngakumbi iindleko zizonke.

Enye into enegalelo kwiindleko eziphezulu zeigwebu lesinyithisisikali esilinganiselweyo semveliso. Njengesixhobo esitsha esikhethekileyo, ukuveliswa kwegwebu lesinyithi kuphantsi kakhulu xa kuthelekiswa neentsimbi zemveli kunye nealloys. Oku kuthetha ukuba uqoqosho lwesikali ngokuqhelekileyo olunxulunyaniswa nemveliso yobuninzi alusebenzi kumagwebu esinyithi, okukhokelela kwiindleko eziphezulu zokuvelisa iyunithi.

Nangona ixabiso layo eliphezulu, iimpawu ezikhethekileyo ze-foam zetsimbi zenza utyalo-mali olukhangayo kumashishini afuna iimpawu zayo ezithile. Ngokomzekelo, kwishishini le-aerospace, apho ukunciphisa ubunzima kubaluleke kakhulu, iimpawu ezikhaphukhaphu kunye namandla aphezulu amagwebu esinyithi abenza babe yinto efanelekileyo kumacandelo eenqwelomoya. Ngokukwanjalo, kushishino lweemoto, amandla okufunxa amandla efoam zetsimbi awenza abe ngumgqatswa ogqwesileyo wokukhanya, izinto ezichasene nefuthe kwizithuthi, ezinceda ekuphuculeni ukhuseleko jikelele.

Isishwankathelo, nangona i-foam yensimbi iizinto ezintsha neziguquguqukayongoluhlu olubanzi lwezicelo, ixabiso layo eliphezulu lingumqobo obalulekileyo wokusetyenziswa kwayo ngokubanzi. Iinkqubo zemveliso ezintsonkothileyo, izixhobo ezibiza kakhulu kunye nesikali esinyiniweyo semveliso zonke zenza i-metal foam ibize kakhulu. Nangona kunjalo, njengoko iteknoloji kunye neendlela zokuvelisa ziqhubeka ziqhubela phambili, iindleko ze-foam zetsimbi zingawa kwixesha elizayo, okwenza kube yindlela ephumelelayo yoqoqosho kuluhlu olubanzi lwezicelo.