Kukonzekera ndi mikhalidwe ya chithovu cha polyuretha-rigid cha ma hairrail apamwamba kwambiri.
Chida cha mkati mwagalimoto ndi gawo lofunikira la tibb, zomwe zimagwira ntchito yokakamiza ndikukoka chitseko ndikuyika mkono wa munthu mgalimoto. Pakachitika ngozi mwadzidzidzi, pamene galimoto ndi kugunda kwamanja, polypropylonictrial rockrail - masyrene - otopa, motero kuchepetsa kuvulala. Manja ofunda a polyirethane amatha kupereka malingaliro abwino komanso mawonekedwe okongola, mwakutero amalimbikitsa chitonthozo ndi kukongola kwa tambala. Chifukwa chake, ndikukula kwa makampani a magalimoto ndi kusintha kwa zofunikira za anthu amkati, maubwino a chithovu chofewa mu ma hailrails am'mimba akuyamba kwambiri.
Pali mitundu itatu ya mizere ya polyurethane yofewa: chithovu chachikulu chokhazikika, chithovu chodzidalira ndi chithovu chokhazikika. Pamwamba chakunja kwa kuchepa kwa chilengedwe kumakutidwa ndi pvc (polyvinyl chloride) khungu, ndipo mkati mwake ndi chikopa chachikulu cha polyurethane chiwomba champhamvu. Kuchirikiza kwa chithovu kumakhala kofooka, mphamvu zake zimakhala zochepa, ndipo zotsatsa pakati pa thovu ndi khungu ndizosakwanira. Manja odzitchinjiriza ali ndi chithovu cha chithovu chimakhala ndi thonje losanjikiza, mtengo wokulirapo, ndipo umagwiritsidwa ntchito kwambiri m'magalimoto, koma nkovuta kuganizira za mphamvu zakumaso komanso chitonthozo chonse. Dongosolo lankhondo lokhazikika limakutidwa ndi khungu la PVC, khungu limakhala ndi mawonekedwe ake, ndipo chithovu cha mkati mwake chimakhala ndi vuto, motero chimagwiritsidwa ntchito kwambiri pakugwiritsa ntchito mgalimoto yokwera.
Mu pepala ili, njira yoyambira ya polyurethane semi-rigid yolimba ya handrails ya magalimoto idapangidwa, ndipo kusintha kwake kumaphunziridwa pamaziko awa.
Gawo Loyesera
Zida zazikulu
Polyther Polyl A (Hydroxyl Mtengo 30 ~ 40 mg / g), poldroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxyl b (hydroxty Osinthidwa mdi [Lifinyenylhane Diisocyanate DI.), Dothing), Ltd., Maitou, etc.; Kunyowa Kubalalitsa (Mtumiki 1), Kunyowa Kubalalitsa (Mtumiki 2): Bweretsani mankhwala. Zopangira pamwambazi ndi kalasi ya mafakitale. PVC khungu la PVC: ATUSU RUIhua.
Zida zazikulu ndi zida
SDF-400 Thumbu Lothamanga, Ar3202cn mtundu wamagetsi
Kukonzekera kwa formula yoyambira ndi zitsanzo
Kusintha koyambira kwa Semi-rigid poureurethane chithovu kumawonetsedwa mu tebulo 1.
Kukonzekera kwa makina amakina a makina: The In'osute Polyther (zopangidwa) zidakonzedwa molingana ndi madi opangidwa ndi 3 ~ ndikutsegulanso mawonekedwe a 3 ~ ndikuthira zitsanzo.
Kukonzekera kwa mayeso a mayeso ogwiritsira ntchito: khungu la pvc limayikidwa pansi pamwambo, ndipo osinthika a Polyter ndi osinthika amasanjidwa pamtunda, ndipo chiuno chimatsekedwa, ndipo chithovu cha polyurethane chimapangidwa mkati mwa nthawi yayitali.
Kuyesa kwa magwiridwe antchito
Makina katundu: 40% CLD (kuvuta kwa compress) malinga ndi kuyesa kwa ISO-3386 kuyesedwa; Mphamvu yakutali ndi mmodzi yopuma imayesedwa malinga ndi muyezo wa ISO-1798; Mphamvu ya m'mimba imayesedwa malinga ndi Stado-8067 Standard. Kugwirira Ntchito: Makina osokoneza bongo a pakompyuta amagwiritsidwa ntchito poyambitsa khungu ndi chithovu 180 ° malinga ndi muyeso wa oem.
Magwiridwe Okalamba: Yesani kuwonongeka kwa makina ndikugwirizanitsa katundu pambuyo maola 24 a ukalamba nthawi ya 120 ℃ malinga ndi kutentha kwa oem.
Zotsatira ndi zokambirana
Katundu wamakina
Posintha kuchuluka kwa Polyther Polymer Polyal B mu njira yoyambira, kutengera kwa Mlingo wosiyanasiyana wa polyter pa makina oyendetsa polyirethane adasinthidwa, monga momwe akuwonetsera pabulo 2.
Itha kuwoneka kuchokera ku zotsatira za tebulo 2 kuti chiwerengero cha Polymer Polymer Polymer B ali ndi thonje la thonje la polyelic. Pamene chiwerengero cha Polyter Polymer Polymer B molymer B Phatikizani, kutalika komwe kumachepetsa mphamvu, ndipo mphamvu yakusanduka imachepetsa pang'ono. Matayala amtundu wa polyurethane makamaka ndi gawo lofewa komanso gawo lolimba, gawo lofewa kuchokera ku polyl ndi gawo lolimba kuchokera ku Corbamate Bond. Mbali inayake yolemera komanso kuchuluka kwa ma Polyrol cha thovu. Pamene Polytether Polyl A ndi magawo 80 ndi polymer polylol b ndi magawo 10, makina opanga zitsamba ali bwino.
Katundu wogwirizira
Monga chogulitsa ndi makina osindikizira apamwamba, dzanja lamanja lidzachepetsa kwambiri magawo ngati chithovu ndi khungu, kotero kugwirira ntchito kwa chithovu cha polyurethane ndi khungu limafunikira. Pamaziko a kafukufukuyu, wonyowa wotsalira amawonjezeredwa kuti ayesetse zotsatsa za chithovu ndi khungu. Zotsatira zikuwonetsedwa mu Gawo 3.
Itha kuwoneka kuchokera pagome 3 komwe kumasiyana kunyowa kumapangitsa kuti mphamvu ya chithovu ndi itha kutsegulidwa kawiri, yomwe imatha kutsegulidwa kwambiri kwa chowonjezera 2; Pambuyo pakugwiritsa ntchito zowonjezera 1 ndi 3, zomwe zimapangitsa kuti zikhale zowoneka bwino, ndipo mphamvu yovula yazowonjezera 1% yoposa 17% yoposa 25% kuposa iyi yopanda kanthu. Kusiyana pakati pa owonjezera 1 ndi owonjezera 3 kumachitika chifukwa cha kudalirika kwa mawonekedwe a mitundu. Mwambiri, kuwunika kunyowa kwa madzi okhazikika, ngodya yolumikizidwa ndi gawo lofunikira kuti muyeze chitsirizidwe. Chifukwa chake, ngodya zolumikizidwa pakati pazinthu zophatikizika ndi khungu litawonjezera ocheperako omwe ali pamwambawa adayesedwa, ndipo zotsatira zake zidawonetsedwa pa Chithunzi 1.
Itha kuwoneka kuchokera pa Chithunzi 1 kuti mbali yolumikizirana yopanda kanthu ndiye yayikulu kwambiri, yomwe ndi 27 °, ndipo ngodya yolumikizidwa ndi araxilirry ndiye, yomwe ndi 12 °. Izi zikuwonetsa kuti kugwiritsa ntchito zowonjezera 3 kumatha kusintha chivomerezi chazophatikizira ndi khungu lalikulu, ndipo ndizosavuta kufalitsa pakhungu, motero kugwiritsa ntchito zowonjezera 3 zili ndi mphamvu yayikulu kwambiri.
Katundu wokalamba
Zogulitsa za m'manja zimakanikizidwa mgalimoto, kudzipereka kwa dzuwa kumakhala kokwera, ndipo magwiridwe okalamba ndi njira inanso yofunika kwambiri yomwe poureurethane Semi-Rigid Hight imayenera kulingalira. Chifukwa chake, ntchito yokalamba ya fomula yofunika idayesedwa ndipo Phunziro la kusinthaku lidachitika, ndipo zotsatira zake zidawonetsedwa mu tebulo 4.
Poyerekeza zambiri mu tebulo 4, zitha kupezeka kuti makinawo okhala ndi makina oyambira amakhala ndi zaka zambiri. Kutayika kwa zaka 24h ukalamba ndi 23% ~ 26%. Zikuwonetsa kuti katundu wokalamba wa formula wofunikira siabwino, ndipo malo okalamba oyambitsidwa ndi mawonekedwe oyambilira akhoza kukhala bwino ndikuwonjezera kalasi ya antioxidant ya antioxidant ya njira ya antioxidant ya njira. Pansi pazoyeserera zomwezo pambuyo kuwonjezera kwa antioxidant A, kutayika kosiyanasiyana pambuyo pa 12% ~ 8%, ndi kuwonongeka kwa zinthu zosiyanasiyana pambuyo pa 24% ~ 16% ~ 16% ~ 16%. Kutsika kwa zinthu zamakina kumachitika makamaka chifukwa cha mitundu yosiyanasiyana yomwe imapangidwa ndi mankhwala osokoneza bongo ogulitsa ndi zosintha zanyumbayo. Kumbali ina, kuchepa kwa ntchito yogwiritsira ntchito kumachitika chifukwa cha kuchepa kwa makina a thovu pawokha, pomwepo, chifukwa khungu la PVC lili ndi mapulasitiki ambiri, ndipo pulasitiki imasamukira pamwamba pa matenthedwe a okosijeni. Kuphatikiza kwa antioxidants amatha kusintha zinthu zake zokalamba, makamaka chifukwa ma antioxidants amatha kuchotsa ma radicals aulere atsopano, kuchepetsedwa kapena kuletsa njira zokongoletsera za polymer ya polymer ya polymer.
Machitidwe okwanira
Kutengera ndi zotsatirazi, mawonekedwe abwino adapangidwa ndipo zinthu zake zosiyanasiyana zidayesedwa. Kuchita kwa formula kumayerekezedwa ndi a polmurethane kwambiri chithotho cha m'manja. Zotsatira zikuwonetsedwa mu tebulo 5.
Monga tikuwonera pagome 5, magwiridwe antchito apamwamba a polyirethail ali ndi ma rigide ena omwe ali ndi njira zina zoyambira ndi njira zambiri, ndipo ndizothandiza kwambiri, ndipo ndizoyenera kugwiritsa ntchito ma hairrails apamwamba kwambiri.
Mapeto
Kusintha kuchuluka kwa polyther ndikusankha ovomerezeka osokoneza bongo omwe amabalalitsa ndi antioxidant amatha kupatsa phokoso la polmurethane kuti katundu wabwino, wabwino kwambiri wokalambayo ndi otero. Kutengera luso labwino kwambiri la chithovu, chopukusira kwambiri cha polyurethaid chitha kugwiritsidwa ntchito ku zida zophatikizira zokhala ndi ma andrails ndi matebulo a zida.
Post Nthawi: Jul-25-2024