Zodzigudubuza za Polyethylene Kwa Makhalidwe ndi Ubwino Wonyamula Lamba

Makhalidwe ndi ubwino waultra-high molecular kulemera polyethylene rollers

Wodzigudubuza ndi gawo lofunikira komanso gawo lowopsa la zida zotumizira, ndipo mtundu wake umatsimikizira mwachindunji moyo wautumiki wa zida zotumizira ndi mphamvu zomwe zimawononga.Ma roller a zida zotumizirapanopa ntchito m'dziko lathu makamaka ntchito zitsulo zodzigudubuza.Poyerekeza ndi zodzigudubuza za zinthu zakunja zofanana, pali zofooka monga moyo waufupi wautumiki, coefficient yaikulu yogwira ntchito, ndi kulemera kwakukulu kwa odzigudubuza.Kuphatikiza apo, zinthu zodzigudubuza zitsulo ndizoyenera nthawi zonse kupanga.M'migodi ndi zofunika apamwamba phokoso ndi malo amodzi magetsi, zikuwononga coking zomera, makampani mankhwala, ndi ntchito zina zapaderazi, kutalika ntchito ndi miyezi 6, lalifupi Mwezi umodzi wabweretsa zoletsa zazikulu ndi kuopsa kwa kupanga zida zonyamulira.Ngozi zachitetezo zachitika mobwerezabwereza, zomwe zimapangitsa kuti pakhale kutaya kwakukulu komanso kugwiritsa ntchito mphamvu zambiri.Chifukwa cha kuchuluka kwa zodzigudubuza zomwe zimagwiritsidwa ntchito komanso kugwiritsa ntchito mphamvu zambiri, kusintha kwa zitsulo zachikhalidwe kunatentha nsidze.Kutengera izi, tinapanga zodzigudubuza zokulirapo kwambiri zama cell polyethylene potengera momwe zidalili zaluso zapakhomo ndi zakunja, pamaziko a odzigudubuza ambiri zitsulo, komanso kudzera muukadaulo, kapangidwe kake, ndi zida zopangira.
1. Wodzigudubuza wa data ya UHMWPE
Polyethylene yokhala ndi molekyulu yolemetsa yopitilira 1.5 miliyoni imatchedwa "UHMW-PE", yomwe imagwiritsidwa ntchito ngati pulasitiki yaukadaulo chifukwa cha ntchito zake zabwino kwambiri zakuthupi.Tikasankha zopangira, choyamba timaganizira ntchito zabwino zotsatirazi:
(1) Kukana kuvala Kukana kuvala kwa UHMWPE kumakhala koyamba pakati pa mapulasitiki ndipo kumaposa zitsulo zina.Kukana kuvala kotereku kumapangitsa kuti zikhale zovuta kuyesa kukana kwake pogwiritsa ntchito njira zoyesera zamapulasitiki.Choncho, kuvala matope kumasankhidwa.Mu zida zoyesera, kukana kuvala kumakhala kofanana ndi kulemera kwa maselo, pamene kulemera kwa maselo kumawonjezeka, kukana kuvala kudzakhala bwino;
(2) Kukana kwamphamvu komanso kuyamwa kwamphamvu.Ndizovuta kuthyola ndikuwononga ndi njira zoyesera zomwe zimakhudzidwa.Mphamvu zake zimawonjezeka ndi kuwonjezeka kwa kulemera kwa maselo, kufika pamtunda pamene kulemera kwa maselo ndi 1.5 miliyoni, ndiyeno kumapitirira kuwonjezeka ndi kulemera kwa maselo.Ndipo pang'onopang'ono kuchepa.Kuonjezera apo, imakhala ndi kuuma kwapamwamba pamtunda pambuyo pa kukhudzidwa mobwerezabwereza;ili ndi mphamvu yabwino kwambiri yoyamwitsa mphamvu, yomwe imakhala ndi mphamvu yayikulu kwambiri yoyamwitsa mphamvu pakati pamitundu yonse yapulasitiki, chifukwa chake imakhala ndi phokoso labwino komanso kuchepetsa phokoso;
(3) UHMWPE yodzitchinjiriza yokha ili ndi vuto lochepa kwambiri (0.05 ~ 0.11), kotero ndi yabwino kwambiri pakudzipaka mafuta.Kuchokera ku Table 1, zikhoza kuwoneka kuti zotsutsana ndizochepa kuposa zodzikongoletsera bwino kwambiri za polytetrafluoroethylene (PTEE), kotero zimatamandidwa mu sayansi ya nkhondo ngati chinthu chokhala ndi ntchito zabwino kwambiri;
(4) Kukana mankhwala.Ili ndi kukana kwambiri kwamankhwala.Kuphatikiza pa ma oxidizing acids amphamvu, imatha kupirira zowononga zosiyanasiyana (monga ma acid, alkalis, ndi mchere) ndi organic media pa kutentha ndi kuya kwina.Chosungunulira tiyi chili panja).Amamizidwa mu mitundu 80 ya zosungunulira za organic pa 20 ° C ndi 80 ° C kwa masiku 30 popanda mawonekedwe achilendo, ndipo ntchito zina zakuthupi zimakhala zosasinthika;
(5) UHMWPE yopanda ndodo ili ndi mphamvu yochepetsetsa kwambiri, ndipo mphamvu yake yotsutsana ndi adhesion ndi yachiwiri kwa PTEE, yomwe imakhala yosamata kwambiri mu pulasitiki, kotero maonekedwe a mankhwalawo si ophweka kumamatira ena. zipangizo.Kuonjezera apo, UHMWPE imakhalanso ndi zizindikiro zochepetsera kutentha (kupanga wodzigudubuza kuti agwiritsidwe ntchito pamlingo waukulu), ukhondo, wopanda poizoni, ndi hydrophobic (wodzigudubuza siwosavuta kuyamwa madzi ndi kupunduka).
Zolakwika za UHMWPE: Poyerekeza ndi zitsulo ndi mapulasitiki ena a engineering, kukana kutentha, ndi kuuma kumakhala kochepa, koma kungathe kusinthidwa ndi "kudzaza" ndi "crosslinking".
2. Kupambana kwa ultra-mkulu maselo kulemera polyethyleneconveyor idler roller
(1) Chifukwa chakuti coefficient kukana ntchito ndi kugubuduza inertia amachepetsedwa kwambiri, wodzigudubuza ntchito amakhala tcheru ndi khola.Polyethylene yapamwamba kwambiri ya molekyulu imakhudza kwambiri kuyamwa kwa mphamvu ndi kunyowetsa, zomwe zimatha kuchepetsa phokoso logwira ntchito ndikupangitsa kuti zida zonyamula katundu zimalize mtunda wautali, mphamvu yayikulu, komanso ntchito zothamanga kwambiri.Komabe, poganizira zophophonya za mphamvu yochepa ya polyethylene yaiwisi yaiwisi, m'pofunika kudutsa mawerengedwe okhazikika ndi kuyesa.
(2) Chifukwa ultra-high molecular weight polyethylene roller ali ndi maonekedwe osamata, osadzimbirira, komanso odzipaka okha, amakhala ndi chitetezo chabwino choyendetsa, ngakhale chodzigudubuza chiwonongeke ndipo sichikugudubuza, sichidzatero. kuonongeka.Lamba wotumizirasikophweka kuvala ndi moyo utumiki wa conveyor lamba,conveyor wodzigudubuza