Narke mai zafiwani nau'i neroba m, yanayinsa na jiki zai iya canzawa tare da canjin yanayin zafi, amma abubuwan sinadaransa ba za su canza ba, don haka zafi mai zafi yana da kyakkyawan yanayin muhalli.Hot narke m da kanta ne m, wanda aka fi so da abũbuwan amfãni daga cikin sauki marufi, sufuri, ajiya, sauki samar tsari, high kara darajar, high bonding ƙarfi da sauri sauri.
Siffar mu ta yau da kullun na manne narke mai zafi galibi fari ne, wasu kuma a bayyane suke.Don haka menene ya kamata mu yi don sanya man narke mai zafi ya bayyana da fari?Subang ya ba da shawarar ƙara ƙaramin ruwa yayin aikin samarwa.Hot narke m mai kyalli farin wakili.
Ethylene da vinyl acetate su ne ainihin resins na zafi narke adhesives, wanda aka copolymerized a karkashin high zafin jiki da kuma high matsa lamba, wato EVA guduro.Gudun EVA shine babban abin da ake yin manne mai narke mai zafi, kuma ainihin aikin mannen narke mai zafi yana ƙayyadad da ƙimar da ingancin guduro.Duk da haka, yana da matukar muhimmanci a zabi yatsa narke EVA.Karamin yatsa mai narkewa, mafi ƙarancin ruwa kuma mafi girma ƙarfi.Mafi girman zafin jiki na narkewa, mafi talauci da wetting da permeability na adherend.Akasin haka, idan ma'aunin narkewa ya yi girma sosai, zafin jiki mai narkewa na manne yana da ƙasa, ruwa yana da kyau, amma ƙarfin haɗin gwiwa yana raguwa.Zaɓin madaidaicin sa, ya fi dacewa don sanya rabo na ethylene da vinyl acetate dace.
Da farko, ƙirƙira ma'auni masu ma'ana tare da ma'auni daban-daban na albarkatun ƙasa, ƙara kayan da aka shirya masu zafi mai narkewa a cikin tukunyar amsawa, da kuma haɗa adadin da ya dace na wakili mai walƙiya don manne mai zafi mai zafi tare da albarkatun ƙasa daidai a cikin tsarin samarwa, gabaɗaya ɗaya. ton na albarkatun kasa Ƙara kimanin gram 200 na iya samun sakamako mai kyau.
Ƙara yawan zafin jiki don narke shi da motsawa da kyau.Sa'an nan kuma kwantar da robar da aka narke a cikin tukunyar amsawa zuwa wani yanayin zafi kuma saka shi a cikin extruder mai gudu.Za a iya zaɓar gudun extrusion na extruder bisa ga nau'in roba daban-daban.
The extruder yana matsi da zafi-narke a cikin tankin ruwa ta wani madauwari extrusion rami a kan extrusion kai.Ana yin manne da zafi mai narkewa nan da nan lokacin da ya ci karo da ruwan sanyi.An sanyaya sandar manne da farko kuma an siffata ta cikin tankin ruwan sanyi na farko.Na'ura mai jujjuyawa na injin feshin manne yana shiga cikin tankin ruwa mai sanyaya na biyu, kuma samfurin manne yana sanyaya sosai kuma an siffata shi a cikin tankin ruwan sanyaya na biyu.Gudun gudu na sandar manne a cikin tankin ruwa ana sarrafa shi ta hanyar saurin extrusion na extruder, don haka na'ura mai jujjuyawa yana aiki tare da saurin extrusion na extruder.
Daidaita da sarrafa alakar da ke tsakanin saurin extrusion, saurin saitin sanyaya da saurin juyewa, sannan slitting da tattara abin sanyaya narke mai narkewa cikin samfuran da aka gama.The whiteness darajar na zafi narkewa m bayan ƙara damai kyalli whitening wakiliBabu shakka yana inganta ta da maki da yawa, kuma ba shi da sauƙi a yi rawaya a mataki na gaba.
Lokacin aikawa: Afrilu-29-2022