Akwai nau'ikan bawuloli da yawa, amma aikin asali iri ɗaya ne, wato haɗawa ko yanke matsakaicin kwararar ruwa. Saboda haka, matsalar rufe bawul ɗin ta fi bayyana sosai.
Domin tabbatar da cewa bawul ɗin zai iya yanke matsakaicin kwararar ruwa ba tare da zubewa ba, ya zama dole a tabbatar da cewa hatimin bawul ɗin yana nan lafiya. Akwai dalilai da yawa na zubewar bawul, gami da ƙirar tsari mara kyau, saman hulɗar rufewa mara kyau, sassan ɗaurewa marasa sassauƙa, daidaitawar da ke tsakanin jikin bawul da bonnet, da sauransu. Duk waɗannan matsalolin na iya haifar da rashin kyawun rufe bawul ɗin. To, don haka yana haifar da matsalar zubewa. Saboda haka, fasahar rufe bawul fasaha ce mai mahimmanci da ta shafi aikin bawul da inganci, kuma tana buƙatar bincike mai zurfi da tsari.
Kayan rufewa da ake amfani da su akai-akai don bawuloli sun haɗa da waɗannan nau'ikan:
1. NBR
Kyakkyawan juriya ga mai, juriyar lalacewa mai yawa, juriyar zafi mai kyau, da mannewa mai ƙarfi. Rashin amfaninsa sune rashin juriya ga yanayin zafi mara kyau, rashin juriya ga ozone, rashin kyawun halayen lantarki, da kuma ɗan ƙaramin sassauci.
2. EPDM
Mafi mahimmancin fasalin EPDM shine juriyar iskar shaka, juriyar ozone da juriyar tsatsa. Tunda EPDM na cikin dangin polyolefin ne, yana da kyawawan halaye na vulcanization.
3. PTFE
PTFE yana da juriya mai ƙarfi ga sinadarai, juriya ga yawancin mai da abubuwan narkewa (banda ketones da esters), juriya mai kyau ga yanayi da juriyar ozone, amma rashin juriyar sanyi.
4. Ƙarfe mai siminti
Lura: Ana amfani da ƙarfe mai siminti don watsa ruwa, iskar gas da mai tare da zafin jiki na 1.≤100°C da matsin lamba na asali na≤1.6mpa.
5. Garin da aka yi da nickel
Lura: Ana amfani da ƙarfe masu tushen nickel don bututun mai zafin jiki na -70~150°C da matsin lamba na injiniya PN≤20.5mpa.
6. Garin ƙarfe
Gilashin jan ƙarfe yana da kyakkyawan juriya ga lalacewa kuma ya dace da bututun ruwa da tururi tare da zafin jiki≤200℃da matsin lamba na musamman na PN≤1.6mpa.
Lokacin Saƙo: Disamba-02-2022
