Kodi mphamvu yolimba ya basalt mineral fiber ndi chiyani?

Mphamvu yamanjenje ya mchere wa basaltndi mutu womwe uyenera kuwunikiridwa kuchokera kumagulu angapo. Choyamba, ndikofunikira kumveketsa bwino kuti kulimba kwamphamvu kumatanthawuza kupsinjika kopitilira muyeso komwe chinthu chingathe kupirira chisanasweka. Za Basalt Fibers, mtengo uwu nthawi zambiri umakhala pakati2000 MPa ndi 4800 MPa. Mtengo weniweni umakhudzidwa ndi zinthu monga kapangidwe kazinthu zopangira, kupanga, ndi kuchuluka kwa fiber.

Chifukwa chiyani? ulusi wa basaltmuli ndi mphamvu zolimba chonchi? Izi zikugwirizana kwambiri ndi microstructure yawo. Basalt palokha ndi thanthwe lamapiri lomwe lili ndi zigawo zikuluzikulu kuphatikizapo silicon dioxide, aluminium oxide, ndi iron oxide. Pambuyo pa kusungunuka kwa kutentha kwambiri, zigawozi zimapanga dongosolo lokhazikika la maukonde atatu, lomwe limapangitsa kuti fiber ikhale yolimba kwambiri. Kuzizira kofulumira pa nthawi ya Kupanga CHIKWANGWANI Kapangidwe kake kamapangitsa kuti mamolekyu achuluke kwambiri, kumapangitsanso kamangidwe kake.

Zinthu zenizeni zomwe zimakhudza kulimba kwamphamvu zitha kuwonedwa kuchokera kuzinthu izi:

1. Mapangidwe a Zakuthupi: Mapangidwe a miyala ya basalt ochokera kosiyanasiyana amasiyanasiyana. Nthawi zambiri, zopangira zokhala ndi silicon dioxide pakati pa 46% ndi 52% zimapanga ulusi wokhala ndi mphamvu zabwinoko. Kuchuluka kwambiri kwa iron oxide kungayambitse kuchepa kwa mphamvu.

2. Ndondomeko Yopanga: Kutentha kosungunuka kumayendetsedwa bwino pa 1400-1500 ° C. Ngati kutentha kuli kochepa kwambiri, kusungunuka kwa viscosity kudzakhala kwakukulu, kumapangitsa kujambula kukhala kovuta; ngati ili yokwera kwambiri, imatha kuyambitsa kusokonezeka kwa gawo. Liwiro lojambula ndilofunikanso; ngati ili yothamanga kwambiri, kuchuluka kwa fiber kumakhala kosagwirizana.

3. Fiber Diameter: Nsalu za Basalt ndi awiri ochiritsira wa 9-13 microns ndi wotchuka kumakoka mphamvu ntchito. Ngakhale kuti ulusi woonda kwambiri uli ndi mphamvu zambiri, nthawi zambiri amakhala ndi zolakwika pakupanga kwenikweni.

4. Chithandizo cha Pamwamba: Mankhwala ena amathandizidwa ndi zokutira pamwamba, zomwe zimateteza ulusiwo ndipo zimatha kukhala ndi mphamvu zinazake.

Muzochita zothandiza, momwe mungasankhire zoyenera basalt fiber? Izi ziyenera kutsimikiziridwa potengera ntchito yeniyeni. Pazinthu zomwe zimafunikira mphamvu zambiri, monga zida zolimbikitsira, tikulimbikitsidwa kusankha zinthu zomwe zili ndi mphamvu zodziwika bwino kuposa 4000 MPa. Zolinga zambiri, monga zida zotsekera, mphamvu yofunikira imatha kuchepetsedwa moyenera. Ndikofunika kuzindikira kuti deta yoyesa ma labotale imatha kusiyana ndi momwe zimagwirira ntchito m'malo omwe amagwiritsidwa ntchito. Zinthu monga kutentha, chinyezi, ndi katundu wanthawi yayitali zimatha kukhudza magwiridwe antchito a fiber.

Ponena za kufananiza kwa basalt fiber mphamvu ndi ulusi wina, mfundo zochepa wamba deta angagwiritsidwe ntchito kutchula: kumakoka mphamvu wamba E-galasi CHIKWANGWANI ndi za 3000 MPa, S-galasi CHIKWANGWANI angafikire 4500 MPa, ndi mpweya CHIKWANGWANI pakati 3000-7000 MPa. Kuchokera pamalingaliro awa, mphamvu ya basalt fiber ili pamtunda wapakati-mpaka-mmwamba. Komabe, ubwino wake umakhala pamtengo wotsika wazinthu zopangira komanso kukana kutentha kwambiri komanso kukhazikika kwa mankhwala.

Pankhani yakuwongolera kwaubwino, njira yoyesera ya single-fiber tensile imagwiritsidwa ntchito kudziwa mphamvu. Pakuyesedwa, chisamaliro chapadera chiyenera kuperekedwa ku ndondomeko yokonzekera chitsanzo kuti tipewe kuyambitsa zolakwika chifukwa cha zinthu zaumunthu. Miyezo yamakampani nthawi zambiri imafunikira kuyesa ulusi wosachepera 50 ndikutengera mtengo wake ngati chotsatira chomaliza. Popeza pali discreteness ina mu mphamvu ya fiber, chiwerengero ichi cha mayesero chikhoza kutsimikizira kudalirika kwa deta.

Ponena za chitukuko chamtsogolo, ofufuza akuyesera kupititsa patsogolo mphamvu ya ulusi wa basalt pogwiritsa ntchito njira monga nanomodification ndi composite spinning. Mwachitsanzo, kuwonjezera pang'ono zigawo zapadera kwa zipangizo akhoza konza katundu Sungunulani; pogwiritsa ntchito ukadaulo wojambula wothandizidwa ndi ma electromagnetic amatha kupititsa patsogolo mawonekedwe a fiber. Ngakhale njira zatsopanozi zikadali mu labotale, zikuwonetsa chiyembekezo chabwino chogwiritsa ntchito.

Kusungidwa kwa mphamvu zokhazikika kumadetsanso nkhawa kwa ogwiritsa ntchito. Deta yoyesera ikuwonetsa kuti m'malo ouma kutentha, mphamvu yosungira mphamvu ulusi wa basalt wapamwamba kwambiri imatha kufikira 90% pakadutsa zaka khumi. Komabe, m'malo otentha kwambiri kapena owononga, mtengowu udzachepa. Chifukwa chake, pamagwiritsidwe enieni a uinjiniya, njira zodzitetezera ziyenera kusankhidwa potengera momwe chilengedwe chimakhalira.

Pomaliza, ziyenera kukumbutsidwa kuti ngakhale ulusi wa basalt uli ndi mphamvu zolimba kwambiri, magwiridwe antchito apakati amafunikiranso kuganiziridwa pazinthu zinazake. Mwachitsanzo, powonjezera konkriti, mphamvu yolumikizana pakati pa ulusi ndi matrix nthawi zambiri imakhala yofunika kwambiri kuposa mphamvu ya ulusi womwewo. Izi ziyenera kukonzedwa bwino pogwiritsa ntchito chithandizo chapamwamba kapena kuwonjezera ma coupling agents.