Zonse Zomwe Muyenera Kudziwa Zokhudza Mphira wa Silicone Wowonjezera-Wochiritsa

Rabala ya silicone yamadzimadzi yothira (ALSR) ndi chinthu cha polymeric chogwira ntchito bwino chomwe chadziwika kwambiri m'mafakitale osiyanasiyana. Mwachidule, chimapangidwa ngati chophatikiza chonga phala, chokhala ndi polydimethylsiloxane yothetsedwa ndi vinyl yomwe imagwira ntchito ngati polima yoyambira, yophatikizidwa ndi zinthu zapadera zolumikizirana ndi ma catalyst. Kapangidwe kapadera kameneka kamapatsa ALSR zinthu zapadera monga kusinthasintha kwabwino, kukhazikika kwa kutentha, komanso kukana mankhwala, zomwe zimapangitsa kuti ikhale chisankho chabwino kwambiri pakugwiritsa ntchito komwe kumafuna kulondola komanso kudalirika. Mosiyana ndi mitundu ina ya rabala ya silicone, njira yothira ya ALSR imapitilira kudzera mu njira yowonjezera, yomwe imadziwika ndi kuchepa kochepa, kutulutsidwa kwa zinthu zina, komanso kuthekera kochira kutentha kwa chipinda komanso kutentha kwakukulu, motero kumawonjezera kusinthasintha kwake m'njira zosiyanasiyana zopangira.

Kugawa kwa rabara ya silicone yowonjezeredwa-yokonzedwa kumadalira kwambiri mfundo ziwiri zazikulu: mtundu wa chinthu ndi magwiridwe antchito/kagwiritsidwe ntchito. Kuchokera pamalingaliro a mtundu wa chinthu, chingagawidwe kukhala rabara ya silicone yolimba ndi rabara ya silicone yamadzimadzi. Pakati pawo, rabara ya silicone yamadzimadzi, makamaka mtundu wa yowonjezera-yokonzedwa, imadziwika ndi kusinthasintha kwake isanakonzedwe, zomwe zimapangitsa kuti ilowe mosavuta mu nkhungu zovuta, zomwe zimathandiza kupanga zigawo zovuta komanso zolondola kwambiri. Ponena za magwiridwe antchito ndi kagwiritsidwe ntchito, ALSR imagawidwa m'magulu amitundu yogwiritsidwa ntchito kwambiri komanso yosagwirizana ndi kutentha kochepa. ALSR yogwiritsidwa ntchito kwambiri imakwaniritsa zofunikira zoyambira zamafakitale ambiri, monga kutseka, kulumikiza, ndi kupanga, pomwe ALSR yolimbana ndi kutentha kochepa imapangidwa makamaka kuti isunge kusinthasintha kwake ndi mawonekedwe ake amakina m'malo otentha kwambiri, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'mafakitale a ndege, magalimoto, ndi mafiriji komwe kukhazikika kwa kutentha kochepa ndikofunikira.

Mitundu ingapo yodziwika bwino ya ma rabara a silicone owonjezera amagwiritsidwa ntchito kwambiri popanga mafakitale, pomwe rabara ya dimethyl silicone ndi rabara ya methyl vinyl silicone ndi omwe amaimira kwambiri. Rabara ya Dimethyl silicone, yodziwika bwino chifukwa cha kutchinjiriza kwake kwamagetsi, kukana nyengo, komanso kusagwira ntchito kwa mankhwala, imagwiritsidwa ntchito kwambiri m'mafakitale amagetsi ndi zamagetsi popanga ma insulators, ma gasket, ndi zophimba zoteteza. Rabara ya Methyl vinyl silicone, kumbali ina, yawonjezera mphamvu za vulcanization ndi mphamvu zamakanika chifukwa cha kuyambitsidwa kwa magulu a vinyl, zomwe zimapangitsa kuti ikhale yoyenera kwambiri pakugwiritsa ntchito komwe kumafuna mphamvu yayikulu yolimba komanso kukana kung'ambika, monga zisindikizo zamagalimoto, zida zamankhwala, ndi zida zamagulu azakudya. Ndi kupita patsogolo kosalekeza kwa ukadaulo wamafakitale, kuchuluka kwa ntchito ya rabara ya silicone yamadzimadzi yowonjezera kukukula, ndipo kuphatikiza kwake kwapadera kwa zinthu kudzapitiliza kuyendetsa zatsopano m'magawo osiyanasiyana apamwamba.