He tino hira te mahi a te Silica (SiO2) i roto i teKarāhe-e, e hanga ana i te papa mō ōna āhuatanga pai katoa. He māmā noa iho, ko te silica te "kaihanga whatunga" te "angaanga" rānei o te E-glass. Ka taea te whakarōpū i tana mahi ki ngā wāhanga e whai ake nei:
1. Te Hanganga o te Hanganga Whatunga Karāhe (Mahi Matua)
Koinei te mahi tino taketake o te silica. Ko te silica he waikura hanga karāhe tonu. Ko ōna SiO4 tetrahedra e honoa ana tetahi ki tetahi mā te hono i ngā ngota hāora, ka hanga he hanganga whatunga toru-ahu tonu, pakari, me te matapōkere.
- Te Whakatairite:He rite tēnei ki te anga maitai o tētahi whare e hangaia ana. Ko te silica te anga matua mō te hanganga karāhe katoa, ko ētahi atu wāhanga (pērā i te waikura konupūmā, te waikura konumohe, te waikura boron, me ētahi atu) ngā rauemi e whakakī ana, e whakarerekē ana rānei i tēnei anga hei whakatika i te mahi.
- Ki te kore tēnei angaanga silica, e kore e taea te hanga i tētahi matū āhua karāhe pumau.
2. Te Whakarato i te Mahi Ārai Hiko Tino Pai
- Ātete Hiko Teitei:He tino iti te nekenekehanga katote o te silica, ā, he tino pumau, he kaha hoki te here matū (here Si-O), ā, he uaua ki te whakakoi. Ko te whatunga tonu e hangaia ana e ia ka tino aukati i te nekehanga o ngā utu hiko, ka nui rawa te ātete o te rōrahi o te karāhe-E me te ātete o te mata.
- Te Pūmau Hikohiko Iti me te Ngaronga Hikohiko Iti:He tino pumau ngā āhuatanga hikohiko o te E-glass i ngā auau teitei me ngā pāmahana teitei. Ko te take nui o tēnei ko te ōritetanga me te pumau o te hanganga whatunga SiO2, e hua ake ai he iti te taumata o te porowhita me te iti o te ngaronga pūngao (te tahuritanga ki te wera) i roto i te mara hiko auau teitei. Nā tēnei ka pai mō te whakamahi hei rauemi whakapakari i roto i ngā papa hiko hiko (PCB) me ngā ārai hiko-teitei.
3. Te Whakapūmau i te Pūmautanga Matū Pai
He tino ātete te karāhe-e ki te wai, ki ngā waikawa (haunga te waikawa hauwai me te waikawa phosphoric wera), me ngā matū.
- Mata Moekore:He tino iti te kaha matū o te whatunga Si-O-Si matotoru, ā, kāore e ngāwari te tauhohe ki te wai, ki ngā iona H+ rānei. Nō reira, he tino pai tōna ātete ki te waikura me te ātete ki te waikawa. Mā tēnei ka mau tonu te mahi a ngā rauemi hiato kua whakapakaritia ki te muka karāhe-E mō te wā roa, ahakoa i roto i ngā taiao uaua.
4. Te Whai Wāhi ki te Kaha Mīhini Teitei
Ahakoa te kaha whakamutunga omuka karāhehe nui hoki te awe o ngā āhuatanga pēnei i ngā hapa o te mata me ngā kapiti moroiti, ko tōna kaha ariā i ahu mai i ngā hononga honohono Si-O kaha me te hanganga whatunga toru-ahu.
- Pūngao Here Teitei:He tino tiketike te kaha here o te here Si-O, ā, he tino pakari te angaanga karāhe, e whakarato ana i te kaha kume teitei me te āhua ngāwari o te muka.
5. Te Whakawhiwhi i ngā Āhuatanga Wera Pai
- Tauwehenga Whānui Wera Iti:He iti rawa te tauwehenga whānui wera o te silica. Nā te mea ko ia te anga matua, he iti hoki te tauwehenga whānui wera o te E-glass. Ko te tikanga he pai te pumau o ngā āhuatanga i te wā e rerekē ana te pāmahana, ā, he iti ake te tūponotanga ka puta he ahotea nui nā te whānui me te whakahekenga wera.
- Teitei o te Whakangawari:He tino teitei te ira rewa o te silica (tata ki te 1723∘C). Ahakoa ka whakaitihia te pāmahana rewa whakamutunga o te karāhe-E mā te tāpiri atu i ētahi atu waikura rere, ka whakarite tonu tōna matua SiO2 kia tino teitei te ira whakangawari o te karāhe me te pumau o te pāmahana kia tutuki ai ngā whakaritenga o te nuinga o ngā tono.
I roto i te tikanga noaKarāhe-ete hanganga, ko te nui o te silica he 52%−56% (mā te taumaha), koia te wāhanga waikura nui rawa atu. Mā tēnei ka tautuhia ngā āhuatanga taketake o te karāhe.
Te Wehenga Mahi i waenga i ngā Waikura i roto i te Karāhe-E:
- SiO2(Hīraka): Angaanga matua; e whakarato ana i te pumau hanganga, te ārai hiko, te pakari matū, me te kaha.
- Al2O3(Arumina): Kaihanga whatunga āwhina me te whakau; ka whakanui ake i te pumau matū, te kaha ā-pūkaha, ā, ka whakaiti i te ia o te tangohanga o te waikawa.
- B2O3(Waikura Pōroni): Te whakarerekētanga o te rerenga me te āhuatanga; ka tino whakaiti i te pāmahana rewa (te penapena pūngao) me te whakapai ake i ngā āhuatanga wera me te hiko.
- CaO/MgO(Waikura Konupūmā/Waikura Konupūmā): Te rere me te whakaū; āwhina i te rewa me te whakatika i te roa o te matū me ngā āhuatanga tango i te waikawa.
Wā tuku: Oketopa-10-2025
