Kurongedza Chikafu Firimu Roll Kurongedza Otomatiki Muchina wePurasitiki Kurongedza Firimu

Firimu rakagadzirwa kubva muzvikamu zviviri kana kupfuura harifanirwe kuparadzaniswa sefirimu rimwe chete. Izvi zvinosanganisira zvinopfuura kunamira pakati pemafirimu maviri chete. Zvakare zvine chekuita nefirimu reinki. Zvinonamira zvigadzirwa zvekugadzira Zvinonamira zvakawanda zvinonamira zvine zvikamu zviviri zve polyurethane (PU). Maitiro emakemikari ekuita kwekuchera anoporesa chinonamira. Chinamira chiri pamusoro pe substrate chinonyanya kuitika uye chikamu chidiki chete ndicho chinamira chemakemikari. Panguva ino, zvikamu zvechinamira zvinoboorwa pamwe chete nezvikamu zviri mufirimu repurasitiki uye zvinozogadziriswazve.
Kana firimu rakagadzirwa necomposite rakatodhindwa panguva yekusunga, ipapo gundi neinki zvinofanira kusangana nezvimwe zvinodiwa. Chinodiwa chikuru ndechekuti jira remukati rinofanira kunge rakanyatsosimba uye rakaoma risati raiswa lamination. Izvi zvinoreva kuti hapana masara e solvent anotenderwa mu liner yakadhindwa. Asi solvent kana alcohol zvinowanzosiyiwa mu binder yeinki. Nekuda kweizvi, hunhu hwegundi hunofanira kukwanisa kubatana ne free radicals (-OH groups). Zvikasadaro, gundi ne curing agent zvichazvibata zvega uye zvorasikirwa nehunhu hwazvo hwepakutanga.
Pakati pezvinonamira, zvinonamira zvine solvent zvinosiyana nezvinamira zvisina solvent zvakaita sezvinonamira zveUV. Musanganiswa wekuboorera une solvent unoda mugero wekuomesa kuti solvent iparare. Kana zvinonamira zveUV zvichishandiswa, chiedza cheUV chinofamba nepakati pefirimu rakagadzirwa kuenda kune chinonamira kuti chipararire pamwe chete.
1. Musanganiswa wakaoma
Zvinoreva nzira iyo namati inosanganiswa kana yakaoma. Kutanga, namati inoputirwa pa substrate. Mushure mekuomeswa mugomba rekuomesa, zvese zvinonyungudutsa mu namati zvinoomeswa. Maitiro ekunyungudutsa namati, kubatanidza imwe substrate kwairi, kutonhora, uye kugayiwa kuti pave nezvinhu zvakasanganiswa zvine hunhu hwakanaka.
2. Chinhu chinobva mukuwedzera
Inozivikanwawo se casting compounding, inova imwe yenzira huru dzekugadzira compound flexible packaging. Inonyungudutsa thermoplastics dzakadai se polyethylene ne polypropylene mumuchina we extrusion compounding, uye inobuda zvakafanana mufirimu yakatetepa kubva mumusoro wakatsetseka, uye inogara yakafukidzwa. Pamusoro pezvinhu zvepasi, firimu rakabatanidzwa rine zvikamu zviviri kana kupfuura rinoumbwa nekudzvanya ne pressure roller uye kutonhora ne cooling roller.
Kubvisa lamination kune zvakanakira zvekumhanya kwekugadzira nekukurumidza, maitiro ekugadzira ari nyore, nzvimbo yakachena yekugadzira, kushanda zvakanaka kwekugadzira, kushanda kuri nyore, mutengo wakaderera, uye kusasara kwe solvent. Nzvimbo yakakosha.