M'zaka zaposachedwapa, mitundu yatsopano ya zipangizo refractory - ceramic refractory silikoni mphira ndi ceramic refractory silikoni lamba gulu lamba ntchito kupanga zingwe refractory, amene kwenikweni kuthetsa mavuto a mitundu iwiri pamwambapa.zingwe refractory.
1. Makhalidwe a ceramic refractory silikoni mphira
Ceramic refractory silikoni labala amapangidwa powonjezera zida zogwirira ntchito ku mphira wa silikoni wotentha kwambiri wa vulcanization (HTV).Kukana kutentha kwambiri ndi kutsika, kukana kukalamba kwa ozoni, kukana kukalamba kwa nyengo, ntchito yabwino kwambiri yamagetsi yamagetsi ndi ntchito yabwino yokonza;Pansi pa kutentha kwamoto kutentha kwambiri, mphira wa silicone wophatikizika wophatikizidwa ndi zida zogwirira ntchito umapanga chosanjikiza cholimba cha ceramic zida zoteteza, Itha kutenga gawo la kudzipatula kwa lawi lamoto, kuteteza moto, kutsekereza, kutchinjiriza kutentha, kutchinjiriza kwa madzi ndi kukana zivomezi, motero kuwonetsetsa kuti kusalala bwino. kuyenda kwa magetsi ndi kulankhulana ngati moto.
2. Njira ya kukana moto ndi kukana moto wa ceramic refractory silikoni mphira
Zipangizo wamba za polima zimasandulika phulusa pambuyo pa kutenthedwa kwa moto, ndipo sizingasinthidwe kukhala zinthu za ceramic;mphira wa silikoni wosakanizidwa ndi moto ndi refractory akhoza kutenthedwa pa kutentha kopanda moto kuposa 500.°C ndi kutentha kwa moto pamwamba pa 620°C. Kutalikirapo kwa nthawi komanso kutentha kwambiri, m'pamenenso mphamvu ya ceramization imawonekera, ndipo kutentha kwa mpweya kumatha kufika 3000.℃;mphira wa silikoni wopangidwa ndi ceramicized wosagwira moto komanso wosasinthika amatha kupangidwa pogwiritsa ntchito zida wamba zopangira mphira.Chomalizidwacho chili ndi zinthu zonse za mphira wa silikoni ndipo chimakhala ndi mayendedwe abwino.
Ndizinthu zophatikizika zomwe zimatha kupangidwa porcelainized kutentha kwambiri powonjezera mphira wa silicone.Imasunga mawonekedwe onse a mphira wa silicone pa kutentha kwapakati.Mukakumana ndi kutentha kopanda moto pamwamba pa 500℃ndi kutentha kwa moto pamwamba pa 620℃, idzasinthidwa kukhala zoumba zadothi.Mtundu uwu wa zinthu za ceramic uli ndi ubwino wa kutchinjiriza kwa ceramic, kutchinjiriza kutentha, kutchinjiriza moto, kutchinjiriza kwamadzi, kukana kugwedezeka, komanso kuchepa pang'ono kwamafuta.
Rabara ya silikoni yosagwira moto ndi yowumitsa sipoizoni komanso yopanda fungo m'malo otentha, imakhala yofewa komanso yosalala, komanso kukana chinyezi komanso kukana mayamwidwe amadzi.Ili ndi mawonekedwe a mphira wa silicone.Ceramic refractory silicone rabara ikhoza kuwotchedwa ndi malawi Pambuyo pa kuwotcha kwa mphindi 2-4, imayamba kulowa mu chipolopolo cholimba cha ceramic ngati zida zankhondo.Chigoba cholimba cha ceramic ngati chida chotchingirachi chimatha kuteteza lawi kuti lisapitirire kuyaka;ndipo amasweka atawotchedwa kwa mphindi ziwiri.Utsi, munjira yotsatira yochotsa, palibe utsi womwe udzapangike;utsi wopangidwa mkati mwa mphindi ziwiri zoyambirira umakhalanso wopanda halogen, wopanda poizoni, komanso wopanda vuto;utsi umakhala makamaka utsi wolimba wopangidwa pambuyo kuyaka kwa organic silikoni, zinthu zopsereza za ceramic ngati chipolopolo cholimba komanso chofanana cha uchi.Chinthu choterocho chimakhala ndi zotsekemera zabwino kwambiri, zotsekemera kutentha, kukana moto ndi kukana moto, komanso zimatha kupirira kugwedezeka ndi kugwedezeka, komanso kuteteza madzi kulowa.Zimatsimikizira kuyenda bwino kwa mzere pa nkhani ya kupopera mankhwala ndi kugwedezeka.
Ceramic refractory silikoni lamba wopangidwa ndi mphira
Tepi ya ceramic refractory silicone mphira wamagulu amapangidwa pomanga mphira wa silikoni wosagwira moto komanso wosakanizika pansalu yagalasi yosagwira kutentha kwambiri malinga ndi makulidwe ena kudzera pakumangirira, mutatha kudula, ndikuyikulunga pamoto wosagwira moto. ndi refractory waya ndi chingwe.
Makhalidwe a ceramic refractory silikoni lamba ndi ceramic refractory silikoni lamba composite lamba:
1. Kusungunula kwamagetsi kwabwino kwambiri: kungathe kufika pamagetsi a XLPE ndi EPDM: resistivity volume imatha kufika 2×1015Ω·masentimita, mphamvu zowonongeka 22-25KV / mm, dielectric kutaya tangent 10-3, dielectric nthawi zonseδ: 2-3.5, angagwiritsidwe ntchito kutchinjiriza;
2. Kukana kwapamwamba kwambiri ndi kutentha kochepa: kutentha kwa nthawi yaitali -70 ~ 200°C, moyo wautumiki ukhoza kufika zaka 5-50 malinga ndi zochitika zosiyanasiyana zachilengedwe;imayamba kuuma pamwamba pa 350°C, ndipo angagwiritsidwe ntchito kwa nthawi yaitali mu malo static;
3. Kukana kwa ozoni ndi kuwala kwa ultraviolet: palibe chifukwa chowonjezera odana ndi ukalamba ndi antioxidants, ndipo moyo wautumiki ukhoza kufika zaka zoposa 30-50 kutentha;
4. Zapadera zapamtunda: kuchuluka kwa mayamwidwe amadzi 0,17%, okhala ndi hygroscopicity otsika kwambiri komanso kuyamwa kwamadzi, ntchito yabwino yolimbana ndi mildew, yosamamatira kuzinthu zambiri;
5. Wokonda zachilengedwe: wopanda halogen, wopanda zitsulo zolemera, wopanda poizoni, wopanda kukoma, ndipo alibe mphamvu pathupi la munthu ndi chilengedwe;
6. Good mankhwala dzimbiri kukana, madzi ndi mafuta kukana;
7. Hydrophobicity yabwino kwambiri, kukana kwa kuipitsidwa kwa flashover ndi kukana kwa creepage;
8. Good processing ntchito: zosavuta pokonza monga kusakaniza, kupanga, calendering, extrusion, akamaumba, etc., ndi fluidity wa zinthu mphira zabwino;
9. Kuopsa kwa utsi panopa ndipamwamba kwambiri kalasi ZA1 pakati pa zipangizo za polima, makamaka zipangizo za chingwe, ndiko kuti, utsi utatha kuyaka umakokedwa ndi mbewa kwa mphindi 30, ndipo palibe kusintha mkati mwa masiku atatu;
10. Kutentha kwabwino kwa kutentha, kutentha kwa matenthedwe 0.09W / Mk, makamaka pambuyo pa ablation, mkati mwake ndi mawonekedwe a zisa yunifolomu, zomwe zimakhala ndi moto wotsutsa komanso kutentha;
11. Kutentha kwamoto kwabwino: kutentha kwa moto kumatha kufika pa mlingo wa UL94V-0, ndondomeko ya oxygen ili pamwamba pa 28, ndipo yapamwamba kwambiri imatha kufika pamwamba pa 40.5;
12. Pambuyo pa kutentha kwapamwamba kwambiri, imatha kuthamangitsidwa mu mawonekedwe a ceramic kupanga zida zolimba za ceramic kuti ziteteze kuyenda bwino kwa dera.Ichi ndiye chinthu "chosintha" kwambiri cha rabara ya silikoni ya ceramic yosagwira moto komanso refractory.Kutentha kwapamwamba, kumatenga nthawi yayitali, ndi zida za ceramic Kulimba kwa thupi;ndi bwino kuposa tepi ya mica, yomwe imakhala yovuta komanso yowonongeka pambuyo poyaka ndikugwa mosavuta;
13. Waya wosagwira moto komanso wosagwira moto ndi chingwe chopangidwa ndi mphira wa silikoni wosayaka moto ndi mphira wa silikoni wosagwira moto ndi tepi ya mphira ya silikoni yosagwira moto imatha kufika pamlingo wa A-level wa GB12666.6, ndiko kuti, kuyatsa mu lawi la 950 ~ 1000℃kwa 90min, 3A fuse palibe fusing;imathanso kufika pamtunda wapamwamba kwambiri wa CWZ wa British BS6387, ndiko kuti, C-kuyaka moto pa 950°C kwa maola atatu, W-madzi opopera, Z-kugwedezeka;
14. Kachulukidwe kakang'ono (1.42-1.45), mtengo wotsika komanso ntchito zotsika mtengo;
15. Malingana ndi makhalidwe omwe ali pamwambawa, amatha kusinthiratu tepi ya mica, osati pazingwe zotsika-voltage zosagwira moto komanso zosagwira moto, komanso mawaya ndi zingwe zapakatikati ndi zotsika kwambiri komanso zosagwira moto.
Nthawi yotumiza: Mar-20-2023