Tushen motar yana ɗaya daga cikin manyan na'urorin haɗi a cikin motar.Yana da manyan ayyuka guda uku: aminci, aiki da kayan ado.
Akwai manyan hanyoyi guda uku don rage nauyin manyan motocin haya: kayan nauyi, inganta tsari, da sabbin hanyoyin kera.Hasken nauyi na kayan gabaɗaya yana nufin maye gurbin kayan asali tare da kayan tare da ƙananan yawa a ƙarƙashin wasu yanayi, kamar ƙarfe na filastik;ƙirar ingantaccen tsari na ƙanƙara mai nauyi ya fi bakin ciki-bangon;sabon tsarin masana'antu yana da ƙananan kumfa.Sabbin fasahohi irin su kayan aiki da gyaran gas mai taimakon gas.
Ana amfani da robobi da yawa a cikin masana'antar kera motoci saboda nauyin haske, aiki mai kyau, masana'anta mai sauƙi, juriya na lalata, juriya mai tasiri, da babban matakin 'yanci a cikin ƙira, kuma ana ƙara amfani da su a cikin kayan mota.Adadin robobin da ake amfani da su a cikin mota ya zama daya daga cikin ma'aunin auna matakin ci gaban masana'antar kera motoci ta kasar.A halin yanzu, robobin da ake amfani da shi wajen kera mota a kasashen da suka ci gaba ya kai kilogiram 200, wanda ya kai kusan kashi 20% na ingancin abin hawa.
Ana amfani da robobi a masana'antar kera motoci ta kasar Sin a makare.A cikin motocin tattalin arziki, adadin robobi ne kawai 50 ~ 60kg, don matsakaita da manyan motoci, 60 ~ 80kg, kuma wasu motocin na iya kaiwa 100kg.Lokacin kera manyan motoci masu matsakaicin girma a China, kowace mota tana amfani da kusan kilo 50 na filastik.Amfanin robobi na kowace mota shine kawai kashi 5% zuwa 10% na nauyin motar.
Kayan abu na bumper yawanci yana da buƙatun masu zuwa: tasiri mai kyau da juriya mai kyau.Kyakkyawan mannewa fenti, mai kyau ruwa, kyakkyawan aikin sarrafawa da ƙarancin farashi.
Saboda haka, kayan PP babu shakka sune mafi kyawun zaɓi.Kayan PP shine filastik-manufa na gaba ɗaya tare da kyakkyawan aiki, amma PP kanta yana da ƙarancin ƙarancin zafin jiki da juriya mai tasiri, ba shi da juriya, mai sauƙin shekaru kuma yana da rashin kwanciyar hankali.Saboda haka, PP da aka gyara yawanci ana amfani da shi don kera motar mota.abu.A halin yanzu, kayan na musamman don bumpers na motoci na polypropylene yawanci ana yin su ne da PP, kuma ana haɗe da sarrafa wani yanki na roba ko elastomer, filler inorganic, masterbatch, kayan taimako da sauran kayan.
Matsalolin da ke haifar da bakin ciki na bango da kuma mafita
Ƙunƙarar ƙaƙƙarfan bumper yana da sauƙi don haifar da nakasar warping, kuma ɓacin rai shine sakamakon sakin damuwa na ciki.Ƙunƙarar bangon bango yana haifar da damuwa na ciki don dalilai daban-daban yayin matakai daban-daban na gyaran allura.
Gabaɗaya, yafi haɗa da damuwa fuskantarwa, damuwa mai zafi, da damuwa na sakin ƙura.Damuwar fuskantarwa wani abin jan hankali ne na ciki wanda ke haifar da zaruruwa, sarƙoƙi na macromolecular ko ɓangarori a cikin narkar da ke kan wata hanya da rashin isasshen hutu.Matsayin daidaitawa yana da alaƙa da kaurin samfurin, zafin narke, zazzabin ƙira, matsa lamba na allura, da lokacin zama.Mafi girman kauri, ƙananan matakin daidaitawa;mafi girman zafin jiki na narkewa, ƙananan matakin daidaitawa;mafi girma da mold zafin jiki, ƙananan digiri na fuskantarwa;mafi girman matsa lamba na allura, mafi girman matakin daidaitawa;tsawon lokacin zama, mafi girman matakin fuskantar .
Matsakaicin zafin jiki shine saboda yanayin zafi mafi girma na narkewa da ƙananan zafin jiki na mold don samar da babban bambancin zafin jiki.Sanyaya narke a kusa da rami na mold yana da sauri kuma an rarraba damuwa na ciki na inji ba daidai ba.
Damuwar ruguzawa yana faruwa ne ta hanyar rashin ƙarfi da ƙaƙƙarfan ƙura, nakasar naƙasa ƙarƙashin aikin matsa lamba na allura da ƙarfin fitarwa, da rashin daidaituwa na rarraba ƙarfi lokacin da aka fitar da samfurin.
Har ila yau, bakin ciki na damfara yana da matsala wajen rushewa.Saboda ma'aunin kauri na bango yana da ƙananan kuma yana da ƙananan raguwa, samfurin yana manne da ƙira;saboda gudun allurar yana da girma, ana kiyaye lokacin zama.Sarrafa yana da wuya;Ƙunƙarar kaurin bango da haƙarƙari kuma suna da sauƙin lalacewa yayin rushewar.Buɗewa na yau da kullun na ƙirar yana buƙatar injin allura don samar da isassun ƙarfin buɗaɗɗen ƙira, kuma ƙarfin buɗewar ƙirar yakamata ya iya shawo kan juriya lokacin buɗe ƙirar.
Lokacin aikawa: Afrilu-23-2023