Ekucubunguleni nasekukhiqizeni imikhiqizo yejeli ye-silica, ukuze unciphise isikhathi somjikelezo ngangokunokwenzeka, ngejeli ye-silica ye-peroxide, ungakhetha izinga lokushisa eliphakeme kakhulu le-vulcanization.Ngokusho kogqinsi oluhlukene lwemikhiqizo ye-silicone, izinga lokushisa lesikhunta ngokuvamile likhethwa phakathi kuka-180 ℃ no-230ºC.Kodwa-ke, kuvame ukuba nezinkinga ezinameva ohlelweni lokucubungula nokukhiqizwa kwemikhiqizo yejeli ye-silica.Kudingeka ukunaka amaphuzu alandelayo.
(1) Uma izinga lokushisa liphezulu kakhulu, kuzoba nemifantu ezungeze indawo ehlukanisayo, ikakhulukazi indawo yokusebenza enogqinsi olukhulu.Lokhu kubangelwa ukucindezeleka okukhulu kwangaphakathi okubangelwa ukwanda kwenqubo ye-vulcanization.Kulokhu, izinga lokushisa lesikhunta kufanele lehliswe.Izinga lokushisa leyunithi yomjovo kufanele libekwe ku-80 ℃ kuya ku-100 ℃.Uma ukhiqiza izingxenye ezinezikhathi zokuphulukiswa ezinde noma izikhathi zomjikelezo, lokhu kushisa kufanele kwehliswe kancane.
(2) Ngejeli ye-silica eyi-platinized, kunconywa ukusebenzisa izinga lokushisa eliphansi.Ngokuvamile, izinga lokushisa leyunithi yomjovo alidluli ku-60 ℃.
(3) Uma kuqhathaniswa nerabha yemvelo, ijeli yesilika eqinile ingagcwalisa isikhunta ngokushesha.Kodwa-ke, ukuze ugweme futhi unciphise ukwakheka kwamabhamuza omoya nokunye ukungcola, ijubane lomjovo kufanele lincishiswe.Inqubo yokugcina ingcindezi kufanele isethelwe isikhathi esifushane kanye nokucindezela okuncane.Ukubamba ukucindezela okuphezulu kakhulu noma okude kakhulu kuzokhiqiza inothi yokubuyisela eduze kwesango.
(4) i-peroxide vulcanization system yenjoloba ye-silicone, isikhathi sokuvuvuka silingana nerabha ye-fluorine noma i-EPM, futhi kujeli ye-silica e-platinized, isikhathi se-vulcanization siphezulu futhi singancishiswa ngo-70%.
(5) I-ejenti yokukhulula equkethe ijeli ye-silica inqatshelwe ngokuphelele.Uma kungenjalo, ngisho nokungcoliswa kwejeli ye-silica kancane kuzoholela ekuveleni kokunamathela kwesikhunta.
Isikhathi sokuthumela: Dec-01-2022