Machubu a mphirandi yosiyana kwambiri ndi machubu ena chifukwa cha mphira wake, yomwe ndi elastomer yomwe ili ndi mphamvu zambiri komanso yolimba komanso yokhoza kutambasulidwa ndi kupunduka popanda kuwonongeka kwamuyaya.Izi makamaka chifukwa cha kusinthasintha kwake, kukana misozi, kulimba mtima, ndi kukhazikika kwa kutentha.
Machubu a mphira amapangidwa pogwiritsa ntchito imodzi mwa njira ziwiri.Njira yoyamba ndiyo kugwiritsa ntchito mandrel, kumene nthenga za rabala zimakutidwa ndi chitoliro ndikutenthedwa.Njira yachiwiri ndi extrusion, kumene mphira amakakamizika kupyolera mu kufa.
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Mandrel Process
Rubber Roll
Rabara yomwe imagwiritsidwa ntchito popanga machubu a rabara pogwiritsa ntchito njira ya mandrel imaperekedwa kuti ipangidwe m'mizere ya mizere ya rabala.Kuchuluka kwa makoma a chubu kumatsimikiziridwa ndi makulidwe a mapepala.Mtundu wa chubu umatsimikiziridwa ndi mtundu wa mpukutuwo.Ngakhale mtundu siwofunika, umagwiritsidwa ntchito ngati njira yopangira gulu komanso kugwiritsa ntchito komaliza kwa chubu la rabara.
Kugaya
Kuti mphira ukhale wofewa popanga, amadutsa mu mphero yomwe imatenthetsa mizere ya rabala kuti ikhale yofewa komanso yosalala kuti mphirayo ikhale yofanana.
Kudula
Rabara yofewa komanso yofewa imasunthidwa ku makina odulira omwe amadula m'lifupi mwake kuti agwirizane ndi m'lifupi ndi makulidwe a kukula kwa chubu la rabara kuti apangidwe.
Mandrel
Zingwe zomwe zidapangidwa podula zimatumizidwa ku mandrel.Asanayambe kukulunga zingwe pa mandrel, mandrel amathiridwa mafuta.The awiri a mandrel ndi miyeso yeniyeni monga anabowola wa machubu mphira.Pamene mandrel akutembenuka, zingwe za rabala zimakulungidwa mozungulira mozungulira komanso pafupipafupi.
Kuzimata kungathe kubwerezedwa kuti kufikire makulidwe ofunikira a chubu la rabara.
Reinforcement Layer
Pambuyo pa chubu lafika pa makulidwe enieni, chowonjezera chowonjezera chimawonjezeredwa chomwe chimapangidwa ndi zinthu zopangira mphamvu zomwe zakhala zophimbidwa ndi mphira.Kusankhidwa kwa wosanjikiza kumatsimikiziridwa ndi kuchuluka kwa kupanikizika komwe machubu a rabara angapirire.Nthawi zina, kuti mukhale ndi mphamvu zowonjezera, chingwe chotsitsimutsa chikhoza kukhala ndi waya wowonjezera.
Gulu Lomaliza
Chigawo chomaliza cha kuvula mphira ndi chophimba chake chakunja.
Kujambula
Zigawo zonse zosiyanasiyana za mphira zitayikidwa, kutalika kwa chubu chomalizidwa kumakutidwa ndi tepi yonyowa ya nayiloni.Tepiyo idzachepa ndi kufinya zipangizo pamodzi.Chotsatira cha kukulunga kwa tepi ndikumaliza kopangidwa ndi m'mimba mwake (OD) ya chubu yomwe imakhala yothandiza komanso yopindulitsa pakugwiritsa ntchito komwe ma chubu adzagwiritsidwa ntchito.
Vulcanization
The chubu pa mandrel amaikidwa mu autoclave kwa vulcanization ndondomeko kuti amachiritsa mphira, zomwe zimapangitsa kukhala zotanuka.Vulcanization ikamalizidwa, tepi yocheperako ya nayiloni imachotsedwa.
Kuchotsa ku Mandrel
Mbali imodzi ya chubu imatsekedwa mwamphamvu kuti ipangitse kuthamanga.Bowo limapangidwa mu chubu kuti madzi azipoperamo kuti alekanitse chubu la rabala ndi mandrel.Machubu a rabara amachoka mosavuta pa mandrel, amakhala ndi malekezero ake okonzedwa, ndipo amadulidwa mpaka kutalika komwe akufuna.
Njira Yowonjezera
Njira ya extrusion imaphatikizapo kukakamiza mphira kudzera mukufa kooneka ngati chimbale.Machubu a mphira opangidwa ndi njira ya extrusion amagwiritsa ntchito mphira wofewa wopanda vulcanized.Magawo opangidwa pogwiritsa ntchito njirayi ndi ofewa komanso osinthika, omwe amawotchedwa pambuyo pa njira ya extrusion.
Kudyetsa
The extrusion ndondomeko imayamba ndi kukhala ndi mphira pawiri kudyetsedwa mu extruder.
Zozungulira Screw
Gulu la mphira limachoka pang'onopang'ono kuchokera ku feeder ndikudyetsedwa ku zomangira zomwe zimasunthira ku fa.
Kufa kwa Rubber Tubing
Pamene mphira yaiwisi imasunthidwa ndi wononga, imakakamizika kupyolera mu kufa molingana ndi kukula kwake ndi makulidwe a chubu.Pamene mphira umayandikira pafupi ndi kufa, pamakhala kuwonjezeka kwa kutentha ndi kupanikizika, zomwe zimapangitsa kuti zinthu za extruder ziwonongeke malinga ndi mtundu wa pawiri ndi kuuma.
Vulcanization
Popeza mphira womwe umagwiritsidwa ntchito popanga extrusion ndi wosasunthika, uyenera kukumana ndi mtundu wina wa vulcanization ukadutsa mu extruder.Ngakhale mankhwala a sulfure anali njira yoyambilira ya vulcanization, mitundu ina yapangidwa ndi zopanga zamakono, zomwe zimaphatikizapo mankhwala opangira ma microware, osambira amchere, kapena mitundu ina yosiyanasiyana yotenthetsera.Njirayi ndiyofunikira kuti muchepetse ndi kuumitsa mankhwala omalizidwa.
The vulcanization kapena kuchiritsa ndondomeko akhoza kuwoneka pa chithunzi pansipa.
Nthawi yotumiza: Aug-25-2022