Te Whakamahinga o te Muka Waro Poto-Ulu

Hei mema matua o te ao hangarau matatau, kua aro nui te muka waro poto-tino ki ngā momo ahumahi me ngā āhuatanga ahurei o te ao. He otinga hou tēnei mō te mahi kounga teitei o ngā rauemi, ā, he mea nui te māramatanga hōhonu ki ngā hangarau me ngā tukanga o tana whakamahinga hei akiaki i te whanaketanga o ngā ahumahi e pā ana.

Ngā whakaahua iti o ngā irahiko o ngā muka waro poto rawa

Ko te tikanga, ko te roa o ngā muka waro poto rawa kei waenga i te 0.1 – 5mm, ā, he iti te mātotoru i te 1.7 – 2g/cm³. He iti te mātotoru o te 1.7 – 2.2g/cm³, he kaha kume o te 3000 – 7000MPa, ā, he ngāwari o te 200 – 700GPa, ko ēnei āhuatanga miihini pai rawa te pūtake mō tōna whakamahinga i roto i ngā hanganga pikau kawenga. Hei tāpiri, he tino pai tōna ātete pāmahana teitei, ā, ka taea te tu atu i ngā pāmahana teitei neke atu i te 2000°C i roto i te hau kore-waikura.

Hangarau Whakamahinga me te Tukanga o te muka waro poto-tino i te mara rererangi

I roto i te mara rererangi, ko te muka waro poto-poto te nuinga e whakamahia ana hei whakapakarikapiangā hiato matrix. Ko te mea nui o te hangarau ko te whakarite kia horapa ōrite te muka waro i roto i te matrix resin. Hei tauira, mā te whakamahi i te hangarau marara ultrasonic ka taea te wawahi i te āhuatanga o te whakakotahitanga muka waro, kia eke ai te tauwehenga marara ki te neke atu i te 90%, kia mau tonu ai ngā āhuatanga o te rauemi. I taua wā anō, ko te whakamahinga o te hangarau maimoatanga mata muka, pērā i te whakamahinga okaihoko honongamaimoatanga, ka taea te mahi i temuka waroā, kua piki ake te kaha o te hononga o te atanga kapia mā te 30% – 50%.

I roto i te hanga parirau rererangi me ētahi atu wāhanga hanganga, ka whakamahia te tukanga pēhi wera o te tāke. Tuatahi, ka konatunatua te muka waro poto rawa me te kapia ki tētahi ōwehenga i hangaia mai i te prepreg, ka whakatakotoria ki roto i te tāke pēhi wera. Kātahi ka whakamaroketia, ka whakapūkaratia ki te pāmahana 120 – 180°C me te pēhanga 0.5 – 1.5MPa. Ka taea e tēnei tukanga te tuku i ngā mirumiru hau i roto i te rauemi hiato kia pai ai te matotoru me te mahi pai o ngā hua.

Hangarau me ngā Tukanga mō te Whakamahinga o te Muka Waro Poto-Ulutu i roto i te Ahumahi Motuka

Ina whakamahia te muka waro poto rawa ki ngā wāhanga motuka, ko te arotahi ko te whakapai ake i tōna hototahitanga ki te rauemi turanga. Mā te tāpiri i ngā mea hototahi motuhake, ka pai ake te piri o ngā muka waro me ngā rauemi turanga (hei tauira...polypropylene, me ētahi atu) ka taea te whakanui ake mā te 40%. I taua wā anō, hei whakapai ake i tana mahi i roto i ngā taiao ahotea uaua, ka whakamahia te hangarau hoahoa whakatakotoranga muka hei whakatika i te ahunga o te whakatakotoranga muka kia rite ki te ahunga o te ahotea i runga i te wāhanga.

He maha ngā wā ka whakamahia te tukanga whakahāngai werohanga i roto i te hanga i ngā wāhanga pēnei i ngā taupoki motuka. Ka konatunatua ngā muka waro poto rawa ki ngā matūriki kirihou, kātahi ka werohangahia ki roto i te kōhao pokepokea ai mā te pāmahana me te pēhanga teitei. Ko te pāmahana werohanga he 200 – 280 ℃ te tikanga, ko te pēhanga werohanga he 50 – 150 MPa. Mā tēnei tukanga ka taea te whakahāngai tere i ngā wāhanga āhua uaua, ā, ka taea hoki te whakarite kia ōrite te tohatoha o ngā muka waro ki roto i ngā hua.

Hangarau me te Tukanga o te Whakamahinga Muka Waro Poto-Ultra i te Marae Hikohiko

I roto i te mara o te whakamararatanga wera hiko, ko te whakamahinga o te kawe wera o ngā muka waro poto rawa te mea nui. Mā te arotau i te taumata whakakāwhata o te muka waro, ka taea te whakanui ake i tōna kawe wera ki te neke atu i te 1000W/(mK). I taua wā, hei whakarite i tōna hononga pai ki ngā wāhanga hiko, ka taea e te hangarau whakakoi mata, pērā i te whakakikorua nikara matū, te whakaiti i te ātete mata o te muka waro mā te neke atu i te 80%.

Ka taea te whakamahi i te tukanga whakarewa paura i roto i te hanga i ngā whakamahana CPU rorohiko. Ka konatunatua te muka waro poto rawa ki te paura whakarewa (hei tauira, te paura parahi) ka whakakāhia i raro i te pāmahana me te pēhanga teitei. Ko te pāmahana whakakāhia he 500 – 900°C te nuinga, ā, ko te pēhanga he 20 – 50 MPa. Mā tēnei tukanga ka taea e te muka waro te hanga i tētahi hongere kawe wera pai me te whakarewa, ā, ka whakapai ake i te pai o te marara wera.

Mai i te rererangi ki te umanga motuka ki te hikohiko, me te auahatanga tonu o te hangarau me te arotautanga tukanga, te poto-potomuka waroka tiaho i roto i ngā mara maha atu, ka werohia he mana kaha ake mō te pūtaiao me te hangarau hou me te whanaketanga ahumahi.