Ngā porowhita karāhe tuwhera He porowhita karāhe kua tukatukahia motuhaketia, ko te nuinga o te wā he iti ake te kiato me te ngoikore ake o te kawe wera i ngā porowhita karāhe. He momo rauemi mama hou tēnei i hangaia i ngā tau 1950 me 1960, he iti te tauine o te micron. Ko tōna wāhanga matua he borosilicate, ko te rahi matūriki whānui he 10~250μm, ā, ko te matotoru o te pakitara he 1~2μm; he porowhita karāhe tuwhera ōna āhuatanga, arā, he kaha pēhi teitei, he ira rewa teitei, he ātete teitei, he iti te kawe wera me te tauwehenga whakaheke wera. E mōhiotia ana ko te "rauemi o te wā ātea" i te rautau 21. Ngā porowhita karāhe tuwhera He mārama te whakaiti i te taumaha me te ārai oro me te ārai wera, nō reira he pai te mahi ārai-pakaru me te mahi tukatuka anō a ngā hua, ā, he whānuitia te whakamahinga i roto i ngā rauemi hiato pērā i te kirihou whakakaha muka karāhe, te māpere horihori, te ākete horihori, tae atu ki te umanga hinu, te ahumahi rererangi me te rererangi. , kua whakatairangahia e ngā tereina tere-tere hou, ngā motuka me ngā kaipuke, ngā paninga ārai wera me ētahi atu mara te whanaketanga o ngā mahi pūtaiao me te hangarau o tōku whenua. Hei whakatutuki i ngā whakaritenga o te iti o te dielectric, te iti o te ngaronga me te mama o ngā rauemi whakawhitiwhiti 5G, he nui ake te mahi a ngā moroiti karāhe tuwhera nā te iti o te utu me te pai o te mahi.
1 – Kai
Te hanganga matū o ngā porowhita karāhe tuwhera (ōwehenga papatipu)
SiO2: 50% -90%, Al2O3: 10% -50%, K2O: 5% -10%, CaO: 1% -10%, B2O3: 0-12%
2- Ngā Āhuatanga
tae mā parakore
Ka taea te whakamahi whānuitia i roto i ngā hua katoa e hiahiatia ana te āhua me te tae.
3- te mātotoru o te mārama
Ko te mātotoru o ngā porowhita karāhe tuwhera he tata ki te kotahi tekau o te mātotoru o ngā matūriki whakakī tuku iho. I muri i te whakakī, ka taea te whakaiti i te taumaha pūtake o te hua, ka taea te whakakapi me te penapena i ngā kapia whakaputa, ā, ka taea hoki te whakaiti i te utu o te hua.
4-Te whakapūmau i te ngako
He ngāwari te mākū me te horapa o ngā porowhita karāhe tuwhera, ā, ka taea te whakakī ki te nuinga o ngā kapia kirihou whakamahana, pērā i te polyester, te kapia epoxy, te polyurethane, me ētahi atu.
5-He pai te rere o te moni
Nā te mea he porowhita iti ngā porowhita iti o te karāhe tuwhera, he pai ake te rere o ngā kapia wai i ngā whakakī maramara, ngira, me ngā whakakī koretake, nō reira he tino pai te mahi whakakī pokepoke. Ko te mea nui ake, he isotropic ngā porowhita iti, nō reira kāore he ngoikoretanga o ngā tere whakahekenga koretake i ngā wāhanga rerekē nā te whakatakotoranga, e whakarite ana i te pumau o te āhua o te hua, ā, e kore e piko.
6- Te whakamarumaru wera me te whakamarumaru oro
He hau angiangi te roto o ngā porowhita iti karāhe tuwhera, nō reira he āhuatanga tōna hei ārai oro me te ārai wera, ā, he mea whakakī pai mō ngā momo hua ārai wera me te ārai oro. Ka taea hoki te whakamahi i ngā āhuatanga ārai o ngā porowhita iti karāhe tuwhera hei tiaki i ngā hua mai i te ru wera e puta mai ana i te whakawhiti i waenga i ngā āhuatanga whakamahana tere me te whakamatao tere. Nā te ātete motuhake teitei me te tino iti o te mimiti wai, ka whakamahia whānuitia i roto i te hanga rauemi ārai taura.
7- Te mimiti iti o te hinu
Mā ngā matūriki o te porowhita ka kitea ko ia te mea iti rawa te horahanga mata motuhake, ā, he iti te tere mimiti hinu. I te wā e whakamahia ana, ka taea te whakaiti i te nui o te kapia, ā, kāore e nui te pikinga o te matotoru ahakoa te nui o te tāpiri, ka tino whakapai ake i ngā āhuatanga whakaputa me te whakahaere. Ka whakapiki ake i te pai o te whakaputa mā te 10% ki te 20%.
8- Pūmau iti o te dielectric
Ko te uara Dk o ngā porowhita iti karāhe tuwhera he 1.2~2.2 (100MHz), ka taea te whakapai ake i ngā āhuatanga dielectric o te rauemi.
Kirihou mō ngā pīrere karāhe tuwhera
(1) Mō te whakarerekētanga o ngā kirihou hangarau pēnei i te nairona, PP, PBT, PC, POM, me ētahi atu, ka taea te whakapai ake i te rere o te wai, te whakakore i te pānga o te muka karāhe, te whakakore i te piko, te whakapai ake i te mahi ārai mura, te whakaiti i te kai muka karāhe, me te whakaiti i ngā utu whakaputa.
(2) Mā te whakakī ki te PVC mārō, PP, PE, me te whakaputa rauemi kōtaha, paipa me ngā pereti ka taea te whakapai ake i te pumau o ngā āhuatanga o ngā hua, te whakapai ake i te pakari me te ātete wera i te pāmahana, te whakapai ake i te mahi utu o ngā hua, te whakapai ake i te whai huatanga o te whakaputa me te whakaiti i ngā utu.
(3) Mā te whakakī i ngā taura PVC, PE me ētahi atu taura me ngā rauemi hipoki ārai ka taea te whakapai ake i te ātete pāmahana teitei o te hua, te ārai wera, te ātete waikawa me te kawakore me ētahi atu āhuatanga me te mahi tukatuka hua, te whakanui ake i te putanga me te whakaiti i ngā utu.
(4) Mā te whakakī i te pereti parahi whakakikoruatia ki te kapia epoxy ka taea te whakaiti i te matotoru o te kapia, te whakanui ake i te kaha piko, te whakapai ake i ōna āhuatanga ā-tinana me ā-pūkaha, te whakanui ake i te pāmahana whakawhiti karāhe, te whakaiti i te pūmau dielectric, te whakaiti i te mimiti wai, me te whakaiti i te utu.
(5) Mā te whakakī ki te polyester kore-mākū ka taea te whakaiti i te tere mimiti me te tere horoi wai o te hua, te whakapai ake i te ātete ki te kakahu me te pakeke, ā, ka iti ake ngā poka i te wā e pania ana me te paninga. Ka whakamahia mō ngā hua FRP, ngā wira whakakanapa, ngā taputapu, me ētahi atu.
(6) Mā te whakakī ki te kapia silicone ka taea te whakapai ake i ngā āhuatanga ā-tinana me ngā āhuatanga ā-pūkaha, ā, mā te nui o te whakakī ka taea te whakaiti i te utu, he rauemi tino pai mō te hanga pokepokea ai.
Wā tuku: Mei-30-2022