Pofuna kupeza zingwe ndi mawaya abwino kwambiri, kusankha zinthu zoyenera zomangira chivundikiro n'kofunika kwambiri. Chivundikiro chakunja chili ndi ntchito zosiyanasiyana kuti chitsimikizire kulimba, chitetezo ndi magwiridwe antchito a chingwe kapena waya. Sizachilendo kusankha pakati pa polyurethane (PUR) ndipolyvinyl chloride (PVC)Munkhaniyi, muphunzira za kusiyana kwa magwiridwe antchito pakati pa zipangizo ziwirizi ndi momwe ntchito zomwe chipangizo chilichonse chili choyenera kugwiritsa ntchito.
Kapangidwe ka chivundikiro ndi ntchito yake mu zingwe ndi mawaya
Chigoba (chomwe chimatchedwanso chigoba chakunja kapena chigoba) ndi gawo lakunja la chingwe kapena waya ndipo chimagwiritsidwa ntchito pogwiritsa ntchito njira zingapo zotulutsira. Chigobachi chimateteza owongolera chingwe ndi zigawo zina za kapangidwe kake ku zinthu zakunja monga kutentha, kuzizira, kunyowa kapena mankhwala ndi mphamvu zamakina. Chingathenso kukonza mawonekedwe ndi mawonekedwe a kondakitala wosweka, komanso gawo loteteza (ngati lilipo), motero kuchepetsa kusokonezeka kwa kugwirizanitsa kwa electromagnetic kwa chingwe (EMC). Izi ndizofunikira kuti zitsimikizire kutumiza kosalekeza kwa mphamvu, chizindikiro, kapena deta mkati mwa chingwe kapena waya. Kuphimba chigoba kumachitanso gawo lofunika kwambiri pakukhalabe kwa zingwe ndi mawaya.
Kusankha nsalu yoyenera yophimba ndikofunika kwambiri kuti mudziwe chingwe chabwino kwambiri pa ntchito iliyonse. Chifukwa chake, ndikofunikira kudziwa cholinga chenicheni cha chingwe kapena waya womwe uyenera kugwirira ntchito komanso zofunikira zomwe uyenera kukwaniritsa.
Zipangizo zodziwika bwino zophimba
Polyurethane (PUR) ndi polyvinyl chloride (PVC) ndi zinthu ziwiri zomwe zimagwiritsidwa ntchito kwambiri popangira zingwe ndi mawaya. M'mawonekedwe, palibe kusiyana pakati pa zinthuzi, koma zimawonetsa zinthu zosiyanasiyana zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito mosiyanasiyana. Kuphatikiza apo, zinthu zina zingapo zingagwiritsidwe ntchito ngati zinthu zophimbira, kuphatikizapo rabara yogulitsa, thermoplastic elastomers (TPE), ndi mankhwala apadera apulasitiki. Komabe, popeza sizofala kwambiri kuposa PUR ndi PVC, tidzaziyerekeza izi mtsogolomu.
PUR - Chinthu chofunika kwambiri
Polyurethane (kapena PUR) imatanthauza gulu la mapulasitiki omwe adapangidwa kumapeto kwa zaka za m'ma 1930. Amapangidwa ndi njira ya mankhwala yotchedwa addition polymerization. Zipangizo zopangira nthawi zambiri zimakhala mafuta, koma zinthu za zomera monga mbatata, chimanga kapena beets zingagwiritsidwenso ntchito popanga. Polyurethane ndi thermoplastic elastomer. Izi zikutanthauza kuti zimasinthasintha zikatenthedwa, koma zimatha kubwerera ku mawonekedwe ake oyambirira zikatenthedwa.
Polyurethane ili ndi mphamvu zabwino kwambiri pamakina. Zipangizozi zimakhala ndi mphamvu yabwino kwambiri yolimbana ndi kuwonongeka, kukana kudula ndi kung'ambika, ndipo zimakhala zosinthasintha ngakhale kutentha kochepa. Izi zimapangitsa kuti PUR ikhale yoyenera kwambiri pa ntchito zomwe zimafuna kuyenda ndi kupindika, monga kukoka maunyolo. Mu ntchito za robotic, zingwe zokhala ndi PUR sheathing zimatha kupirira mafunde ambirimbiri opindika kapena mphamvu zamphamvu zozungulira popanda mavuto. PUR imalimbananso kwambiri ndi mafuta, zosungunulira ndi kuwala kwa ultraviolet. Kuphatikiza apo, kutengera kapangidwe ka chipangizocho, sichikhala ndi halogen komanso choletsa moto, zomwe ndizofunikira kwambiri pa zingwe zomwe zili ndi satifiketi ya UL ndipo zimagwiritsidwa ntchito ku United States. Zingwe za PUR zimagwiritsidwa ntchito kwambiri pomanga makina ndi mafakitale, automation yamafakitale, komanso makampani opanga magalimoto.
PVC - chinthu chofunika kwambiri
Polyvinyl chloride (PVC) ndi pulasitiki yomwe yakhala ikugwiritsidwa ntchito popanga zinthu zosiyanasiyana kuyambira m'ma 1920. Ndi chinthu chopangidwa ndi polymerization ya unyolo wa vinyl chloride. Mosiyana ndi elastomer PUR, PVC ndi thermoplastic polymer. Ngati zinthuzo zawonongeka zikamatenthedwa, sizingabwezeretsedwe momwe zinalili poyamba.
Monga chinthu chophimbira, polyvinyl chloride imapereka njira zosiyanasiyana chifukwa imatha kusintha malinga ndi zosowa zosiyanasiyana posintha chiŵerengero cha kapangidwe kake. Kulemera kwake kwa makina sikokwera ngati PUR, koma PVC nayonso ndi yotsika mtengo kwambiri; Mtengo wapakati wa polyurethane ndi wokwera kanayi. Kuphatikiza apo, PVC ndi yopanda fungo ndipo imalimbana ndi madzi, asidi ndi zinthu zoyeretsera. Ndi chifukwa chake nthawi zambiri imagwiritsidwa ntchito m'makampani ogulitsa chakudya kapena m'malo ozizira. Komabe, PVC siili ndi halogen, ndichifukwa chake imaonedwa kuti siyoyenera kugwiritsidwa ntchito m'nyumba. Kuphatikiza apo, siili ndi mafuta, koma izi zitha kupezeka ndi zowonjezera zapadera za mankhwala.
Mapeto
Polyurethane ndi polyvinyl chloride zonse zili ndi ubwino ndi kuipa monga zipangizo zomangira chingwe ndi waya. Palibe yankho lenileni la chinthu chomwe chili chabwino pa ntchito iliyonse; Zambiri zimadalira zosowa za munthu payekha. Nthawi zina, zinthu zosiyana kwambiri zomangira chivundikiro zingakhale yankho labwino kwambiri. Chifukwa chake, timalimbikitsa ogwiritsa ntchito kufunafuna upangiri kuchokera kwa akatswiri omwe amadziwa bwino zinthu zabwino ndi zoyipa za zipangizo zosiyanasiyana ndipo amatha kuyeza wina ndi mnzake.
Nthawi yotumizira: Novembala-20-2024