Pali mitundu iwiri ya ma resins yomwe imagwiritsidwa ntchito kutulutsa ma cossusetites: thermoset ndi thermoplastic. Osuta a thermoset ali ndi ma fumunoli ofala kwambiri, koma ma reiser a thermoplastic akupezanso chidwi chatsopano chifukwa chowonjezera ntchito.
Thermonkhot imaletsa kuumitsa ntchito yochiritsa, yomwe imagwiritsa ntchito kutentha kwa ma polima omwe sangakhale osasunthika kapena osasunthika omwe samasungunuka ataweta. Kumanja, kumakunja, ndi nthambi za monomers zomwe zimafewetsa pomwe zimatentha ndikuzikonzanso atakhazikika, njira yosinthira yomwe siyifuna kulumikizana kwamankhwala. Mwachidule, mutha kukumbukira ndi kusinthiratu thermoplastic amalichera, koma osati makenje.
Kukondana ndi ma armoplastic kumakula, makamaka m'malo ogulitsa magalimoto.
Ubwino wa thermoseting
Thermoset imayendera ngati epoxy kapena polyester amakondedwa pakupanga mawonekedwe azomwe amawoneka bwino komanso kulowa mu network. Ndikotheka kugwiritsa ntchito ulusi wochulukirapo ndikuwonjezera mphamvu ya zinthu zomalizidwa.
M'badwo waposachedwa wa ndege nthawi zambiri umaphatikizapo zoposa 50 peresenti.
Panthawi yaugawinga, ulusi umaviikidwa mu thermoset urn ndikuyika nkhungu. Opaleshoni iyi imayendetsa chizolowezi chomwe chimatembenuza kukhala chotsika kwambiri chotsika-chotsika cha ma netiweki katatu chomwe chitsirizini chimatsekedwa mu netiweki yatsopano. Popeza zochita zambiri zochiritsira ndizochulukirapo, zomwe zimachitika zikuyenda ngati maunyolo, zomwe zimakulitsa kupanga kwakukulu. Kapangidwe kake kameneka, mawonekedwe a manja atatuwa amaseka ulusiwo ndikupereka mphamvu ndi kuuma kwa mawonekedwe.
Post Nthawi: Oct-19-2022
