A cikin shekaru biyu da suka gabata, haɓakar haɓakar fasaha na kayan kariya na thermal runaway don sabbin batura masu ƙarfi, abokan ciniki suna ƙara buƙatar haɓaka aikin aikin rufin zafi tare da juriyar yumbu-kamar ablation-maɓalli mai mahimmanci don jure tasirin harshen wuta.
Misali, wasu aikace-aikacen suna buƙatar zafin zafin gefen harshen wuta na 1200C yayin da ake kiyaye yanayin bayan baya ƙasa da 300°C. A cikin kayan sararin samaniya, haɓakar harshen wuta na gefe-gefen acetylene a 3000 ° C yana buƙatar yanayin zafi na gefen baya ƙasa da 150 ° C. Musamman ƙalubale shine ƙara buƙatar aikin matsawa a cikin kumfa silicone na yumbu, wanda ke buƙatar duka ƙananan saitin matsawa da ingantaccen riƙewar zafin jiki a yanayin zafi. Waɗannan kayan gabaɗaya suna gabatar da sabbin buƙatun ƙorafin zafi don fasahar yumbura.
Takamaiman buƙatun aiki (don tunani kawai):
Yi zafi samfurin a kan dandalin dumama kamar yadda aka nuna a kasa. Kula da yanayin zafi a 600 ± 25 ° C na minti 10. Aiwatar da danniya na 0.8 ± 0.05 MPa a zazzabi na gwaji, tabbatar da zafin jiki na baya ya kasance ƙasa da 200 ° C.
A yau, mun taƙaita waɗannan batutuwa don tunani.
1. Sinthetic Calcium Silicate – Thermal Insulation White Filler
Silicate na siliki na roba yana wanzu a cikin nau'i biyu: sifofi mai laushi/spherical da kuma yumbu-fiber-kamar tsarin fibrous. Duk da bambance-bambancen mahalli da yanayin halittar jiki, duka biyun suna aiki azaman ingantacciyar madaidaicin zafin jiki mai jure zafi farin filler.
Roba calcium silicate fiber ne mai kare muhalli da kumaaminci thermal rufi abutare da matsanancin zafin jiki har zuwa 1200-1260 ° C. Na musamman sarrafa roba silicate fiber foda zai iya zama a matsayin fiber-ƙarfafa abu don high-zazzabi rufi.
roba silicate porous ko mai siffar zobe, a halin yanzu, siffofi high fari, sauƙi na haɗawa, wani arziki nanoporous tsarin, matsananci-high sha mai dabi'u (har zuwa 400 ko sama), da 'yanci daga slag bukukuwa ko manyan barbashi. Ya tabbatar da aikace-aikacen a cikin babban zafin jiki mai juriya mai zafi da ɓangarorin wuta, yana nuna yuwuwar haɗawa a cikin kayan juriya na yumbu don samar da ƙarancin zafin jiki.
Sauran aikace-aikace sun hada da: powdered ruwa Additives, high-zazzabi insulating foda coatings, turare adsorbent dako, anti-drip jamiái, birki kushin gogayya kayan, low-matsi silicone roba da kai bazuwar silicone mai, takarda fillers, da dai sauransu.
2. Magnesium Aluminum Silicate mai Lalacewa- Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararru
Wannan ma'adinai na silicate yana buƙatar ƙididdigar zafin jiki mai zafi tare da refractoriness har zuwa 1200 ° C. Da farko ya ƙunshi magnesium aluminum silicate, yana fasalta wani tsari mai ɗorewa mai ƙyalƙyali wanda ke ba da ƙarfin haɗin gwiwa, kyakkyawan juriya na ruwa, tsawan lokaci mai ƙarfi, da ingantaccen farashi.
Ayyukansa na farko sun haɗa da rufin zafi mai zafi, raguwa mai yawa, haɓaka haɓakawa, da ingantaccen juriya na ablation da zafin jiki don yadudduka na carbon da casings. Aikace-aikace sun haɗa da kayan ƙera yumbu, kayan kwalliyar wuta mai ƙima, kayan daɗaɗɗen wuta, da kayan ƙoshin zafi mai jurewa.
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Ƙananan ƙananan gilashin gilashin babu shakka suna da kyawawan kayan rufewa na thermal, amma juriyar zafin su bai isa ba. Matsalolinsu masu laushi gabaɗaya suna daga 650-800C, tare da yanayin zafi a 1200-1300C. Wannan yana iyakance aikace-aikacen su zuwa yanayin ƙarancin zafin jiki na yanayin zafi. Ƙarƙashin yanayi mafi girma kamar ceramicization da juriya na ablation, sun zama marasa tasiri.
Ƙwararrun yumbura ɗin mu na microspheres sun warware wannan batu. Da farko sun hada da aluminosilicate, suna ba da juriya mai zafi, fitattun insulation thermal, high refractoriness, da kuma mafi girman juriya. Aikace-aikace sun haɗa da ƙari na yumbu na silicone, kayan rufewa mai jujjuyawa, abubuwan daɗaɗɗen zafin jiki don resin kwayoyin halitta, da ƙari mai jure zafin zafi. Mahimman sassa sun ƙunshi sararin samaniya, bincike mai zurfi na teku, kayan haɗin gwiwa, sutura, rufin da ba a so, masana'antar man fetur, da kuma kayan da aka rufe.
Wannan shi ne mafi ƙarancin zafi mai jure zafi mai faɗin micropowder mai sauƙi wanda yake da sauƙin haɗawa (sabanin faɗuwar gilashin microspheres, waɗanda ke buƙatar pre-watsawa ko gyara don ƙari mai kyau) kuma yana nuna kyakkyawan juriya. Babban abin da ya bambanta shi shine cewa abu ne mai buɗe ido wanda baya shawagi akan ruwa, yana mai da sauƙin yin kauri da daidaitawa.
Bugu da ƙari, taƙaitaccen ambatonairgel foda- wani roba porous silica rufi abu. Airgel an san shi sosai a matsayin kyakkyawan insulator na thermal, ana samunsa cikin bambance-bambancen hydrophobic/hydrophilic. Wannan yana ba da damar zaɓin hanyoyin da suka dace na jiyya bisa tushen guduro, magance ƙalubalen foda na airgel na tarwatsewar nauyi mai nauyi da haɓaka rarrabuwar sa. Hakanan ana samun manna na tushen ruwa don dacewa da haɗawa cikin tsarin ruwa.
Musamman madaidaicin kaddarorin thermal insulation na airgel foda yana ba da damar aikace-aikacen sa a cikin: - Roba da masu ɗaukar filastik - Abubuwan da za su iya ɗaukar zafi don sabbin batura masu ƙarfi - Gine-ginen rufin gini - Filayen yadudduka masu ƙyalli - Gina bangon bangon bangon bangon bangon wuta - Rubutun mai hana wuta - Adhesives na thermal insulation.
Lokacin aikawa: Satumba-22-2025
