Nitrile butadiene roba (NBR) da kuma polyvinyl chloride (PVC) abubuwa biyu ne da ake amfani da su sosai a cikin masana'antar rufi, musamman a aikace-aikacen lantarki da na thermal. Abubuwan da suke da su na musamman sun sa su dace da wurare daban-daban, amma aikin waɗannan kayan rufewa na iya bambanta sosai dangane da tsarin masana'antu. Fahimtar tasirin hanyoyin masana'antu daban-daban akan aikin rufewa na kayan NBR/PVC yana da mahimmanci ga masana'antun da masu amfani na ƙarshe.
Abubuwan da aka keɓe na kayan NBR/PVC galibi sun dogara ne da ƙarfin zafinsu, ƙarfin wutar lantarki, da haƙuri ga abubuwan muhalli kamar zafi da canjin yanayin zafi. Waɗannan kaddarorin suna tasiri ta hanyar ƙirar kayan, ƙari, da takamaiman hanyoyin da ake amfani da su wajen samarwa.
Ɗaya daga cikin mahimman hanyoyin masana'antu da ke shafar aikin rufewa shine hanyar haɗawa. A cikin wannan mataki, ana haɗe polymers na tushe (roba nitrile da polyvinyl chloride) tare da ƙari daban-daban, gami da filastik, stabilizers, da filler. Zaɓin abubuwan ƙari da tattarawar su yana canza yanayin zafi da lantarki na samfurin ƙarshe. Misali, ƙara wasu na'urorin filastik na iya haɓaka sassauci da rage haɓakar thermal, yayin da takamaiman filaye na iya haɓaka ƙarfin injina da kwanciyar hankali na thermal.
Wani mahimmin tsari na masana'antu shine extrusion ko hanyar gyare-gyaren da ake amfani da shi don siffata kayan da aka rufe. Extrusion ya haɗa da danna cakuda kayan ta hanyar mutu don samar da sifa mai ci gaba, yayin da yin gyare-gyare ya ƙunshi zub da abu a cikin rami da aka riga aka kafa. Kowace hanya tana haifar da bambance-bambance a cikin yawa, daidaituwa, da kuma tsarin gaba ɗaya na kayan rufewa. Misali, extruded NBR/PVC kayan rufi na iya samun ingantacciyar daidaituwa da ƙananan porosity idan aka kwatanta da samfuran da aka ƙera, don haka haɓaka aikin sulufin su.
Tsarin warkewa yana taka muhimmiyar rawa a cikin kaddarorin rufin kayan nitrile roba/polyvinyl chloride (NBR/PVC). Curing, wanda kuma aka sani da vulcanization, yana nufin tsarin haɗin haɗin gwiwar polymer ta hanyar aikace-aikacen zafi da matsa lamba, wanda ya haifar da wani abu mai tsayi da tsayi. Tsawon lokaci da zafin jiki na tsarin warkewa yana shafar kaddarorin ƙarshe na kayan haɓakawa. Rashin isassun magani yana haifar da haɗin kai marar cikawa, don haka rage juriya na thermal da ƙarfin dielectric. Sabanin haka, yawan warkewa yana sa kayan su zama masu karye da tsagewa, ta yadda zai rage tasirin sa.
Bugu da ƙari, ƙimar sanyaya bayan samarwa yana rinjayar crystallinity da ilimin halittar jiki na kayan NBR/PVC. Saurin sanyaya na iya haifar da haɓakar sifofin amorphous, wanda zai iya inganta sassauci amma yana iya rage kwanciyar hankali. A gefe guda, ƙarancin sanyaya hankali zai iya haɓaka crystallization, wanda zai iya inganta juriya na zafi amma a farashin sassauci.
A cikin kalma ɗaya, abubuwan da aka keɓe na kayan NBR/PVC suna da tasiri sosai ta hanyoyin masana'antu daban-daban. Daga haɗawa da gyare-gyare zuwa warkewa da sanyaya, kowane mataki a cikin tsarin samarwa yana canza yanayin zafi da lantarki na samfurin ƙarshe. Masu sana'a dole ne su yi la'akari da waɗannan abubuwan a hankali don haɓaka aikin rufi na kayan NBR/PVC don takamaiman aikace-aikace. Tare da ci gaba da haɓaka buƙatun kayan aikin rufewa mai ƙarfi, ci gaba da bincike da haɓaka fasahar samarwa yana da mahimmanci don haɓaka aikin NBR/PVC mafita a cikin yanayi daban-daban.
Lokacin aikawa: Nuwamba-11-2025
