Mafayibha egirazi asina alkali uye asina alkali ndiwo marudzi maviri akajairika ezvinhu zvefiberglassine misiyano yakati wandei muhunhu uye mashandisirwo.
Faibha yegirazi ine alkali ine mwero(E girazi faibha):
Musanganiswa wemakemikoro une huwandu hwakaringana hwealkali metal oxides, senge sodium oxide nepotassium oxide.
Inodzivirira zvakanyanya tembiricha yepamusoro, kazhinji inotsungirira tembiricha inosvika 1000°C.
Ine hunhu hwakanaka hwekudzivirira kupisa kwemagetsi uye inodzivirira ngura.
Inowanzoshandiswa muzvinhu zvekuvaka, mainjiniya emagetsi nemagetsi, ndege nedzimwe nzvimbo.
Girazi Risina Alkali(C Girazi Fiber):
Musanganiswa wemakemikari hauna alkali metal oxides.
Inodzivirira alkali zvakanyanya uye ngura uye yakakodzera nzvimbo dzine alkali.
Kudzivirira kwakaderera pakupisa kwakanyanya, kazhinji kunogona kutsungirira kupisa kwakanyanya kweinenge 700°C.
Inonyanya kushandiswa muindasitiri yemakemikari, kuchengetedzwa kwezvakatipoteredza, ngarava nedzimwe nzvimbo.
Girazi remagetsi rine simba rekudhonza rakakwirira kupfuura girazi remagetsi reC, zvichireva kuti mavhiri emagetsi anodhonza ari nani.
Girazi remagetsi rine kureba kwakanyanya, rinobatsira kuderedza chiyero chekucheka girazi refiber panguva yekugadzika kwemavhiri ekukuya kana riri mukumanikidzwa kwakanyanya.
Magirazi e-e ane huwandu hwakawanda hwevhoriyamu, anenge 3% vhoriyamu diki nehuremu hwakafanana. Wedzerai chiyero chekukwesha uye wedzera kushanda zvakanaka kwekugaya uye mhedzisiro yemavhiri ekukwesha.
Girazi remagetsi rine hunhu huri nani pakudzivirira hunyoro, kudzivirira mvura uye kukwegura, rinosimbisa kugadzikana kwemamiriro ekunze kwemadhisiki efiberglass uye rinowedzera nguva yekugaya mavhiri.
Kuenzanisa kwechinhu pakati pegirazi reC negirazi reE
| Chinhu | Si02 | Al2O3 | Fe2O | CaO | MgO | K2O | Na2O | B2O3 | TiO2 | zvimwe |
| Girazi reC | 67% | 6.2% | 9.5% | 4.2% | 12% | 1.1% | ||||
| Girazi remagetsi | 54.18% | 13.53% | 0.29% | 22.55% | 0.97% | 0.1% | 0.28% | 6.42% | 0.54% | 1.14% |
Kuenzanisa pakati peC-girazi neE-girazi
| Kushanda Kwemakanika | Kuwanda (g/cm3) | Kuramba Kukwegura | Kuramba Mvura | Kuramba Hunyoro | ||||
| KusimbaSimba (MPa) | Modulus yeElastic (GPa) | Kureba (%) | Kusarema (mg) | Alkali yakabuda (mg) | RH100% (kurasikirwa kwesimba mumazuva manomwe) (%) | |||
| Girazi reC | 2650 | 69 | 3.84 | 2.5 | Mukuru | 25.8 | 9.9 | 20% |
| Girazi remagetsi | 3058 | 72 | 4.25 | 2.57 | Zviri nani | 20.98 | 4.1 | 5% |
Muchidimbu, zvosemagirazi ane alkali yepakati (C-girazi) uye asiri alkali (E-girazi)ine zvayakanakira uye mashandisirwo ayo akasiyana. Girazi reC rine simba rekudzivirira makemikari, nepo girazi reE rine hunhu hwakanaka hwemakanika uye kuputira magetsi. Kunzwisisa musiyano uripo pakati pemhando mbiri idzi dzefiberglass kwakakosha pakusarudza chinhu chakakodzera kushandiswa kwacho, kuve nechokwadi chekuti chinoshanda zvakanaka uye kugara kwenguva refu.
Nguva yekutumira: Kubvumbi-18-2024
