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Porosity me te Kiato o Foam Metal

I te tau 2015, i hangaia tahitia e nga kairangahau mai i DST me New York University Institute of Technology.

He 0.92 g/m3 anake te kiato, ka rewa ki runga wai. He mea whakamiharo, he pai te kaha o tenei rauemi i te wa e eke ana te taumaha mama, a ka taea e tana anga porowhita kotahi te tu atu i te pehanga 25,000 pauna mo ia inihi tapawha i mua i te pakaru. Ki te whakatauritea ki te pahukawe whakarewa tuku iho, ko te painga o te pahuka i runga i te whakarewa ko te mea ka taea te whakarite i te kiato i roto i tetahi awhe, ka taea hoki te whakahaere i te rahi me te ahua o nga rua.

Porosity Foam Metal

Ko te porosity e pa ana ki te tauwehenga o te rōrahi o nga pores katoa i roto i te tinana maiangi ki te katoa o te rōrahi o te tinana maiengi, he inenga auau o te waahi kore o te tinana maiengi. Ko te porosity o te whakarewa pahuka i te tikanga neke atu i te 90%, a he whakarewa maiengi ki etahi kaha me te rigidity. Ko tenei momo whakarewa he porosity teitei, a ka taea e te diameter pore te eke ki te taumata mirimita.

Ko te kiato o te pahuka i whakarewa hanga rauemi pahuka i whakarewa he tono motuhake. Hei tauira, Ko nga taonga pahuka whakarewa e whakamahia ana i roto i te waahi o te hanga motuka, ka taea te whakaiti i te taumaha o te waka, te whakapai ake i te pai o te wahie, me te whakanui ake i te whakamarumaru o nga kaihihi i te waahi o te aitua me te awhina o te kaha o te kaha o te kaha o te kaha.

I roto i nga mahi hanga, i kitea he maha nga waahanga motuka ka taea te hanga ki te konumohe pahuka. Pērā i te uhi o runga, te uhi o raro, ngā tūru, ngā parepare, ngā kurupae roa o mua me muri, me ētahi atu Hei tauira, ko te papa o te tuanui i hangaia mai i te konumohe pahuka hanawiti mai i Kaman Automobile Company o Tiamana he 7 nga wa teitei ake i tera o nga waahanga rino, engari ko tona taumaha he 25% te mama ake i nga waahanga rino.

Tohutoro: Te hitori whanaketanga o te pahuka i whakarewa

I te tau 1948, i tono a Sosnik ki te whakarite i te koranu konumohe whakarewa pahuka i te koranu konumohe me te mēkuri vaporized, i tohu i te wa tuatahi i whai whakaaro ai te tangata ki te pahuka maitai. i tenei wa, ka pakaru te ariā tawhito ko nga konganuku anake te hanganga kiato.

I te tau 1951, i angitu a Elliott ki te whakaputa i te konumohe pahuka i te tikanga whakarewa huka.

I te tau 1983, ko te pepa i whakaputaina e GJDVIES i tohu i te tiimatanga mana o te rangahau mo te punaha pahuka whakarewa, a ka timata te rangahau mo te pahuka i te wa kaha.

I te tau 1988, ko te 《Porous Solids-structure & Properties》 i whakaputaina e LJ Gbson & MF Ashby he mahi nui tonu mo te rangahau rauemi porous.

I roto i te 1991, Kyushu Industrial Research Institute o Japan kua whakawhanakehia he tukanga ahumahi mo te hanga ahumahi o te konumohe pahuka.

I te tau 2000, i whakarapopototia tuatahitia e Ashby me tana roopu te tikanga whakarite, te mahi me te ahunga tono o te pahuka i whakarewa.

Mai i te tau 2000, kua pakari haere te hangarau whakarite o nga matūriki pai, a kua timata ano te waahi rangahau o te pahukawe whakarewa ki te whanake tere.


Wā tuku: Hune-16-2021