Bhegi rePE ibhegi rinowanzo shandiswa muhupenyu hwedu hwezuva nezuva, rinoshandiswa pamhando dzese dzekurongedza michero nemiriwo, mabhegi ekutenga, kurongedza zvigadzirwa zvekurima, nezvimwewo. Kugadzira bhegi repurasitiki rinoita serakareruka kunogona kuoma zvikuru. Maitiro ekugadzira mabhegi ePE anosanganisira zvidimbu zvepurasitiki - kusanganisa kupisa - kutambanudza extrusion - kurapwa nemagetsi -; Bhegi rePE ndiro rinonyanya kushandiswa mumatanho akati wandei ari pamusoro apa, rakarerutswa mushure memaitiro matatu: kuputira firimu ------ kudhinda ------ kugadzira mabhegi.
Maitiro ekudhinda mabhegi ePE anofanira kutariswa nei?
Polyethylene, inodzivisa kupisa kwakanyanya (shandisa tembiricha inosvika -70 ~ -100), kugadzikana kwemakemikari, kukurwa kweasidhi nealkali zvakanyanya (nekusashivirira oxidizing acid), isinganyungudike muzvinonyungudutsa zvakanyanya patembiricha yemumba, inonyungudika zvishoma, inoshanda zvakanaka mukudzivirira magetsi. Zvisinei, polyethylene inonzwa kushushikana kwezvakatipoteredza (kushanda kwemakemikari nemechanical) uye haikurumidzi kupisa. Hunhu hwepolyethylene hunosiyana kubva kumarudzi kusvika kumarudzi, kunyanya zvichienderana nechimiro chemamorekuru uye huwandu. Zvigadzirwa zvine huwandu hwakasiyana (0.91-0.96 G/CM3) zvinogona kuwanikwa nenzira dzakasiyana dzekugadzira. Polyethylene inogona kugadziriswa nenzira dzakajairika dzekugadzira thermoplastic (ona Plastics processing).
Ndezvipi zvinyorwa zvine chekuita nemaitiro acho zvakadzama pazasi?
Maitiro ekuputira firimu anofanira kutarisisa zvinhu zvinotevera:
1. Kuwanda kwezvinhu zvisina kugadzirwa: zvichienderana nezvinodiwa zvakasiyana-siyana zvemabhegi ePE, kugadzirira huwandu hwakasiyana hwezvinhu zvisina kugadzirwa. Semuenzaniso: anti-static, anti-ngura, kuderedza simba, electrical conductivity, biodegradation nezvimwe zvinodiwa, wedzera zvimwe zvinhu zvinobatsira semuenzaniso: kushandisa tsvuku, dema, ruvara nezvimwe, wedzera mavara akasiyana-siyana. Zvichienderana nekujeka, kuomarara, simba rekubvaruka, kubvisa vacuum nezvimwe zvinodiwa, tsiva mhando dzakasiyana dzemhando kana mhando dzezvinhu zvePE. Semuenzaniso: zvichienderana nezvinodiwa zvakakosha, simbisa zvinodiwa zvekujeka kwakanyanya, kubvaruka kwakasimba, kuvhurika kwakanaka, kuitira kuti uchinje huwandu hwezvinhu zvisina kugadzirwa.
2. Maitiro ekupurinta firimu, kudiwa kwekugadzirisa electronic, panguva ino kutarisisa kusimba kwekugadzirisa electronic, kuve nechokwadi chekuti PE drum material electronic processing strength (DAYIN) yakakwana kuti ive nechokwadi chekuti inki inonamira.
3.mukuita kwefirimu rinopfurwa, zvichienderana nezvinodiwa zvefirimu, kuvhura kamwe chete, kuvhura kaviri, kupeta, kukuvara kwepoindi yekumanikidza, embossing, kuwedzera uye mamwe mabasa.
Maitiro ekudhinda mabhegi ePE anofanirwa kutarisisa zvinhu zvinotevera:
1. Inki yekudhinda: inki inobva mumvura, inki inooma nekukurumidza, inki isingaonekwe, inki inochinja ruvara, inki inorwisa manyepo, inki yeinduction, inki inodzora, inki yemagetsi yakaderera, inki isina matte uye humwe hunhu hweinki inki.
2. Purati yekudhindira: zvinoenderana nezvinodiwa zvemuchina wekudhinda, kudhinda kwegravure (copper plate) uye flexography (offset) kudhinda zvinoshandiswa. Idzi nzira mbiri dzakasiyana dzekudhinda.
3. Zvichienderana nekuoma kwezviri mukudhinda uye kuoma kwemavara, sarudza nzira yekudhinda: kudhinda monochrome, kudhinda monochrome mativi maviri, kudhinda kwemavara kune rumwe rutivi, kudhinda kwemavara kune mativi maviri.
4. Zvichienderana nezvinodiwa zvemapatani ekudhinda, zvichienderana nehunhu hwekusachinja ruvara, kudzivirira manyepo, kufambisa magetsi, manamatiro nezvimwewo, sarudza inki dzakasiyana kana zvimwe zvinowedzerwa.
Nguva yekutumira: Kurume-03-2022
