Layin rufe motoci (Ƙofa, taga, hasken sama)
Layin rufe mota
Layin rufe motoci yana ɗaya daga cikin muhimman sassa, ana amfani da shi sosai a ƙofa, taga, jikin mota, hasken sama, akwatin injin da akwatin ajiyar kaya (kaya) da sauransu, tare da rufin sauti, hana ƙura, hana ruwa da danshi, kiyayewa da kula da ƙaramin muhalli a cikin motar, don kunna motar, kayan lantarki da na injiniya da kayan taimako masu mahimmanci na kariya. Tare da ci gaban masana'antar mota, mahimmancin kyawawan kariyar muhalli da aikin kwanciyar hankali na layin rufewa yana ƙara bayyana. An yi bincike na musamman kan tsarin rufe motoci (tsarin rufe motoci) da aka sanya a sassa daban-daban na motar a masana'antar motoci ta ƙasashen waje, kuma mahimmancinsa yana jawo hankali sosai. 1. Dangane da sunan sassan rufe motoci (sassan), rarrabuwar ta haɗa da: hatimin HOOD na injin, kuma ana iya raba shi zuwa gaba, gefe da baya; HATIMIN ƘOFAR KWAFAR; Allon TAGA don tagogi na gaba da na baya; Hatimin taga na gefe (Hatimin taga na gefe); Hatimin rufin rana; HATIMIN ƘOFAR BIRNI; Layin rufe taga na lanƙwasa (CHANNEL NA GLASSRUN); Rigunan ciki da na waje (yanka ruwa) (LAYIN KUJIYA); HATIMIN KWALI; Rigunan rufewa masu hana hayaniya; Kamar hana ƙura. 2. Dangane da halayen HATIMIN RUFEWA, ana iya rarraba shi zuwa hatimin WEATHERSTRIP da hatimin gabaɗaya. Daga cikinsu, rigin rufewa na yanayi yana da bututun kumfa mai zurfi, wanda ke da ingantaccen aikin kiyaye zafin jiki da danshi. Rigin rufewa na yanayi da aka fi amfani da shi sun haɗa da rigin rufewa na firam ɗin ƙofa, rigin rufewa na akwati, rigin murfin akwati na injin, da sauransu. Rigin rufewa na gabaɗaya da aka fi amfani da shi sune rigin rufewa na taga ta gaba da ta baya da rigin rufewa na taga ta kusurwa, rigin ciki da ta waje, da sauransu. 3. Dangane da tsarin haɗin kayan roba, ana iya raba shi zuwa tsararren rigin rufewa na roba - wanda ya ƙunshi roba ɗaya; Rigin rufewa guda biyu - wanda ya ƙunshi manne mai yawa da manne kumfa, sau da yawa a cikin manne mai yawa a cikin hanyar da ke ɗauke da kayan kwarangwal na ƙarfe; Hatimin haɗa abubuwa uku - ya ƙunshi nau'ikan rufewa guda biyu (ɗaya daga cikinsu launin haske ne) da kuma manne mai soso, yawanci yana ɗauke da kwarangwal na ƙarfe da zare mai ƙarfi a cikin manne. Layin rufewa guda huɗu - Shanghai Shenya Sealing parts Co., Ltd. sun jagoranci haɓakawa da samar da layin rufewa mai haɗaka wanda ya ƙunshi nau'ikan kayan roba guda 4, a saman roba (bututun kumfa) kuma an rufe shi da siririn manne mai kariya, don ƙara inganta rayuwar hatimi. 4. Dangane da nau'in rarraba kayan, ana iya raba shi zuwa layin rufewa na roba; Layin rufewa na filastik; Layin hatimi na thermoplastic elastomer. 5. An rarraba shi bisa ga yanayin maganin saman, wasu layin rufewa bayan ƙarin magani, ana iya raba su zuwa layin rufewa mai yawo; Layin rufewa na saman; Akwai layin hatimi na masana'anta. 6. Rarraba aiki na musamman, wasu layin rufewa suna da aikin lantarki mai wayo, kamar layin rufewa mai hana ɗaurewa.
(2) kayan da aka yi da tsiri mai rufewa
Roba na Epdm
Ana haɗa Ethylene propylene diene diene (EPDM) ta hanyar polymerization na ethylene da propylene monomers tare da ƙaramin adadin diolefin mara haɗin kai. Tsarin polymer ɗin yana da alaƙa da haɗin biyu marasa cikakken cika a cikin babban sarkar da haɗin biyu marasa cikakken cika a cikin sarkar reshe. Saboda haka, yana da kyakkyawan juriya ga yanayi, juriya ga zafi, juriya ga ozone, layin juriya na UV da kuma kyakkyawan aikin sarrafawa da ƙarancin matsi na dindindin, don haka shine kayan da aka fi so don samar da sandunan rufewa. A halin yanzu, yawancin kayan shinge na mota suna amfani da EPDM a matsayin babban kayan aiki. Dangane da sassa daban-daban da ayyukan sandunan rufewa, a aikace aikace, vulcanization, kariya, ƙarfafawa, kayan tsarin aiki da kayan aiki na musamman (kamar masu launi, wakilin kumfa) ana ƙara su zuwa kayan EPDM don samar da manne mai yawa (gami da manne baƙi da manne launi) da manne soso. Tsarin rufe motoci ya ƙunshi sassauƙan sassauƙa da juriya ga lalacewar matsi, juriya ga tsufa, ozone, tasirin sinadarai, nau'ikan zafin jiki iri-iri (-40℃~+120℃) kumfa roba na EPDM da kuma kayan haɗin da ke da yawa, wanda ke ɗauke da kayan ƙarfe na musamman da maƙallin harshe, mai ɗorewa, mai sauƙin shigarwa. An daɗe ana haɗa shi da manyan masana'antun motoci.
Bayanin Samfuri
Yanayin zafin da aka ba da shawarar:
Kayan EPDM -40 °F -248 °F (-40 °C -120 °C)
Kayan ƙarfe na ciki: waya ta ƙarfe ko takardar ƙarfe
Roba na halitta
Robar halitta wani nau'in polyisoprene ne a matsayin babban sinadarin polymer na halitta, tsarin kwayoyin halitta shine (C5H8) N, 91% ~ 94% na abubuwan da ke cikinta sune hydrocarbon na roba (polysoprene), sauran kuma sune furotin, fatty acid, toka, sukari da sauran abubuwan da ba na roba ba. Robar halitta ita ce robar da aka fi amfani da ita a aikace. Saboda robar halitta tana da jerin halaye na zahiri da na sinadarai, musamman juriyarta mai kyau, rufin gida, warewar ruwa da kuma sauran halaye, kuma, bayan magani mai dacewa, tana da juriyar mai, juriyar acid, juriyar alkali, juriyar zafi, juriyar sanyi, juriyar matsi, juriyar lalacewa da sauran halaye masu mahimmanci, don haka, tana da amfani iri-iri. Misali, amfani da takalman ruwan sama na yau da kullun, jakunkunan ruwa masu dumi, roba; Safofin hannu na Likita, bututun jini, kwaroron roba da ake amfani da su a fannin lafiya da lafiya; Duk nau'ikan tayoyi da ake amfani da su a sufuri; Belin jigilar kaya, bel ɗin sufuri, safar hannu masu juriya ga acid da alkali don amfanin masana'antu; Amfani da bututun magudanar ruwa da ban ruwa na noma, jakunkunan ammonia; Balan-balan masu sauti don binciken yanayi; Hatimi da kayan aiki masu kariya daga girgiza don gwaje-gwajen kimiyya; Jiragen sama, tankuna, manyan bindigogi da abin rufe fuska na iskar gas da ake amfani da su wajen tsaro; Har ma da rokoki, tauraron dan adam na duniya na wucin gadi da kuma jiragen sama da sauran kayayyakin kimiyya da fasaha masu inganci ba za a iya raba su da robar halitta ba. A halin yanzu, akwai abubuwa sama da 70,000 a duniya da aka yi wani ɓangare ko gaba ɗaya daga robar halitta. Thermoplastic Vulcanizate (Thermoplastic Vulcanizate), wanda aka fi sani da TPV
1, juriya mai kyau da juriya ga nakasawa, juriya ga muhalli, juriya ga tsufa yayi daidai da robar epDM, a lokaci guda juriyar mai da juriyar narkewa da kuma kama da neoprene gabaɗaya. 2, kewayon zafin aikace-aikace mai faɗi (-60-150℃), kewayon aikace-aikacen laushi da tauri (25A - 54D), fa'idodin rini mai sauƙi yana inganta 'yancin ƙirar samfura sosai. 3, kyakkyawan aikin sarrafawa: allura, fitarwa da sauran hanyoyin sarrafa thermoplastic, inganci, sauƙi, babu buƙatar ƙara kayan aiki, babban ruwa, ƙaramin raguwar raguwa. 4, kariya ga muhalli kore, ana iya sake amfani da shi, da kuma amfani da shi sau shida ba tare da raguwar aiki mai mahimmanci ba, daidai da buƙatun muhalli na EU. 5, takamaiman nauyi shine haske (0.90 -- 0.97), ingancin bayyanar iri ɗaya ne, matakin saman yana da girma, jin daɗin yana da kyau. Dangane da halayen aiki da ke sama, ana amfani da TPV sosai a cikin aikace-aikace iri-iri tare da kayan roba na gargajiya. A halin yanzu, wasu samfuran na bututun rufe motoci ana maye gurbinsu da TPV na roba mai narkewa tare da EPDM. TPV na robar thermoplastic vulcanized yana da wasu fa'idodi na daban a cikin cikakken aiki da cikakken farashi.
