mphira wamadzimadzi silikoni (LSR) ndi wothira thovu wothandizila thovu (thupi kapena mankhwala), ndipo pa Kutentha ndi vulcanization akamaumba ndondomeko mu nkhungu, wothandizila thobvu amapanga mpweya, potero kupanga yunifolomu ndi zabwino microcellular thobvu dongosolo.
1. Kukonzekera Zopangira:
Gwiritsani ntchito-zigawo ziwiri za mphira wa silikoni wamadzimadzi (Zigawo za A&B). Zopangira mphira nthawi zambiri zimakhala-zokonzedwa ndi wogulitsa. Chigawo A chimakhala ndi chothandizira, ndipo Chigawo B chimakhala ndi cholumikizira. Kutengera ndi zomwe zimafunikira pakupanga chinthu chomaliza (monga kusachulukira, kuuma, ndi mtundu), pangakhale kofunikira kuwonjezera zopaka utoto, zodzaza matenthedwe (monga aluminiyamu), kapena zotchingira moto ndi zina zowonjezera pagulu la mphira. Zowonjezera izi nthawi zambiri zimasakanizidwa mofanana ndi Chigawo A kapena Chigawo B pasadakhale.
2. Chiyambi cha Foaming Agent (Mawu oyambitsa thobvu)uwu ndiye ulalo wofunikira kwambiri. Malinga ndi mtundu wa wothandizira thovu, amagawidwa m'njira ziwiri zaukadaulo:
Njira: Kupanga supercritical CO₂: Liquid CO₂ imatenthedwa ndikupanikizidwa kudziko lopanda malire kudzera mu zida zodzipatulira. Kuyeza ndi jekeseni: Kupyolera mu mpope woyezera kwambiri-wothamanga kwambiri, mlingo wina wa CO₂ wovuta kwambiri umabayidwa mumsewu wa A component flow of liquid silicone rabara. Kusakaniza kosasunthika: Chigawo A (chomwe chili kale ndi scCO₂) ndi Chigawo B chimasakanizidwa bwino pamene chikudutsa mu chosakanizira chosasunthika. Panthawiyi, scCO₂ imasungunuka mofanana mumtundu wa rabala pansi pa kupanikizika kwambiri, kupanga -gawo limodzi losakaniza. Njira yonseyi imasungidwa pansi pa kupanikizika kwakukulu kuti CO₂ isathawe msanga.
b) Mankhwala otulutsa thobvu:Gwiritsani ntchito zinthu zomwe zimatha kuwola ndi thovu, monga azodicarbonamide (AC foaming agent). Kachitidwe: -sakanizani ufa wotulutsa thovu mofanana ndi Chigawo A kapena Chigawo B mu chipangizo chogwedeza. Kuonetsetsa kuti chinthucho chili ndi vuto-chopanda chilema, vacuum deaeration nthawi zambiri imafunika mukasakaniza kuti muchotse mpweya womwe ukuyambitsa panthawi yakugwedeza.
3. Vulcanization ndi thovu:
Kutulutsa thovu: Pambuyo jekeseni wa rabala mu nkhungu, kupanikizika kumatulutsidwa, ndipo CO₂ yopambana kwambiri yomwe imasungunuka mu rabala imasungunuka mofulumira, ndikupanga ma nuclei. Pakali pano, kutentha kwambiri kumapangitsa kuti pakhale vulcanization ndi kuwoloka-kulumikizana kolumikizana mu rabara ya silikoni, kutseka mawonekedwe a thovu ndi kupanga ma cell.
Kutulutsa thovu kwamankhwala: Kutentha kwakukulu kwa nkhungu kumapangitsa kuti mankhwala otulutsa thovu awonongeke, kutulutsa mpweya (monga N₂, CO₂). Panthawi imodzimodziyo, mphira wa silikoni umagwedezeka, ndipo mpweya umayikidwa mumtanda wa rabara wopangidwa, kupanga maselo.
4. Kujambula:Pambuyo vulcanization thobvu mkombero anamaliza (nthawi zambiri mkati masekondi makumi angapo mphindi), kutsegula nkhungu ndi kuchotsa mankhwala. Chifukwa cha kukhuthala kochepa kwa LSR, zinthuzo nthawi zambiri sizimamatira ku nkhungu ndipo zimakhala zosavuta kuzipanga.
5. Tumizani-kuchiritsa (kuvutitsidwa kwachiwiri)(Post{{0}Curing) zinthu zopangidwa thovu zikatha kuchotsedwa nthawi zambiri zimafunika kuikidwa{1}kutenthedwa mu uvuni wotentha pafupifupi madigiri 150 - 200 kwa maola 1-2.