Zinthu Zitatu Zofunikira Zomwe Zimakhudza Kuchiritsa kwa Zomatira

Kuchiritsa kwa zomatira ndi njira yomwe imayamba ndikukulitsa zinthu monga mphamvu yomangirira kudzera muzochita zamankhwala (polymerization ndi crosslinking). Kuchiritsa ndiye gawo lofunika kwambiri kuti mukwaniritse bwino mgwirizano; Kuthekera kwakukulu kolumikizana kungatheke pokhapokha mutachiritsidwa kwathunthu. Ponena za nthawi yochiritsa, imagawidwa m'magawo atatu: kuchiritsa koyambirira, kuchiritsa koyambirira ndi pambuyo - kuchiritsa.

Kuchiritsa koyambirira kumatanthauza pakapita nthawi pa kutentha kokhazikika, guluuyo amapeza mphamvu, pamwamba pake amauma ndipo samamatira, koma sanachiritsidwebe.

Kuchiritsa koyambira kumatanthawuza pakapita nthawi yambiri, magulu ambiri ochitapo kanthu amatenga nawo mbali pazamankhwala ndikufika pamlingo wina wophatikizika.

Kutumiza - kuchiritsa kumatanthauza kuchiza ziwalo zomangika pambuyo pochira kuti zithandizire kukonza magwiridwe antchito kapena kukwaniritsa zofunikira. Kawirikawiri timawasunga pa kutentha kokhazikika kwa nthawi ndithu. Gawo lowonjezerali limamaliza kuchiritsa, kumakweza mulingo wochiritsa, kumachotsa kupsinjika kwamkati bwino ndikupangitsa mgwirizano kukhala wolimba.

Kuti mukhale ndi guluu wochiritsidwa bwino, kuchiritsa kuyenera kuchitika moyenera. Kuchiritsa kwa zomatira kumakhudza kwambiri khalidwe la mgwirizano. Pali magawo atatu ofunikira pakuchiritsa: kutentha, kuthamanga ndi nthawi. Zinthu zitatuzi zimakhudza kwambiri momwe zomatira zimachiritsira.

Zinthu Zitatu Zazikulu Zomwe Zimakhudza Kuchiritsa Zomatira

1. Kutentha kwa kutentha ndi chimodzi mwazinthu zofunika kwambiri pakuchiritsa zomatira. Ngati kutentha kuli kokwera kwambiri, guluuyo imachoka mosavuta kapena guluu wosanjikiza umasanduka brittle, kutsitsa mphamvu zomangira. Ngati kutentha kuli kochepa kwambiri, mamolekyu a zinthu zoyambira sangathe kuyenda momasuka. Izi zimabweretsa kutsika kwapang'onopang'ono komanso kuchiritsa kosakwanira. Chifukwa chake tiyenera kuwongolera kutentha kwambiri pakuchiritsa, popeza zomatira zilizonse zimakhala ndi kutentha kwake koyenera.

2. Kuchiza kuthamanga kumatanthauza kugwiritsa ntchito mphamvu inayake pochiritsa kuthandiza guluu wosanjikiza kuti agwirizane bwino ndi zinthu zomangika ndikutsimikizira zabwino, ndi zomatira zosiyanasiyana zimafunikira kupanikizika kosiyana komwe kungathe kugawidwa m'mitundu itatu: kukhudzana ndi kupanikizika kumangogwiritsa ntchito kulemera kwa zinthu zomangika popanda kukakamiza owonjezera, oyenera guluu epoxy, α-cyanoacrylate guluu, wachiwiri - guluu wa acrylic unsaturated ndi polyester glue; Kuthamanga kwa 0.1~0.3 MPa kumagwiritsidwa ntchito ku zosungunulira-zomatira zochokera ku phenolic-acetal guluu, phenolic-nitrile butadiene guluu, epoxy-nitrile butadiene guluu, epoxy-nayiloni guluu ndi polyimide guluu; Kuthamanga kwa 0.3 ~ 0.5 MPa ndi filimu, ufa, chubu, zomatira za pellet ndi guluu wotentha wosungunula, komanso kuthamanga kwakukulu kungapangitse kunyowa kwawo.

3. Nthawi yochiritsa imatanthawuza nthawi yomwe imafunika kuti pakhale mgwirizano wathunthu pansi pa kutentha kokhazikika komanso kupanikizika. Zomatira zosiyanasiyana zimakhala ndi liwiro lochiritsa mosiyanasiyana: guluu α-cyanoacrylate ndi guluu wotentha amasungunuka nthawi yomweyo; chipinda-kutentha mofulumira-chiza epoxy guluu ndi wachiwiri-m'badwo akiliriki guluu kutenga maola angapo; Guluu wa epoxy polyamide amafunikira masiku angapo kuti achire. Kupatula apo, kuchiritsa nthawi kumakhudzidwa ndi kutentha ndi kupanikizika. Kutentha kwakukulu kumafupikitsa nthawi yochiritsa, pamene kutentha kochepa kumakulitsa kwambiri, ndipo zomatira zina sizingachiritse kwa masiku ngati sizitenthedwa.