Izikhwama zokufaka ifilimu ngokuvamile zenziwe ngezindlela zokuvala ukushisa, kodwa futhi zisebenzisa izindlela zokubopha zokukhiqiza. Ngokusho komumo wabo wejometri, ngokuyisisekelo ingahlukaniswa izigaba ezintathu eziyinhloko:izikhwama ezimise okomcamelo, izikhwama ezivaliwe ezinezinhlangothi ezintathu, izikhwama ezivaliwe ezinezinhlangothi ezine .
Izikhwama ezimise okomcamelo
Izikhwama ezimise okomcamelo, ezibuye zibizwe ngokuthi izikhwama ezingemuva, izikhwama zinemithungo yangemuva, ngaphezulu nangaphansi, okuzenza zibe nokwakheka komcamelo, izikhwama eziningi zokudla ezincane ezivame ukupakishwa ezimise okwesicamelo. Isikhwama esimise okomcamelo emuva komthungo ukwenza iphakheji efana ne-fin, kulesi sakhiwo, ungqimba lwangaphakathi lwefilimu luhlanganiswa ukuze luvalwe, ama-seams aphuma ngemuva kwesikhwama ahlanganiswe. Olunye uhlobo lokuvala ekuvaleni okugqagqene, lapho ungqimba lwangaphakathi ohlangothini olulodwa luhlanganiswe nesendlalelo sangaphandle ngakolunye uhlangothi ukuze senze ukuvala okuyisicaba.
I-finned seal isetshenziswa kakhulu ngoba inamandla futhi ingasetshenziswa inqobo nje uma ungqimba lwangaphakathi lwento yokupakisha luvalwe ngokushisa. Isibonelo, izikhwama zefilimu ezivame kakhulu ezine-laminated zinesendlalelo sangaphakathi se-PE kanye nesendlalelo sangaphandle se-laminated base material. Futhi ukuvala okumise okugqagqene kunamandla amancane, futhi kudinga izingqimba zangaphakathi nangaphandle zesikhwama yizinto zokuvala ukushisa, ngakho-ke hhayi ukusetshenziswa okuningi, kodwa okuvela ezintweni kungasindisa kancane.
Isibonelo: izikhwama ze-PE ezingahlanganisiwe zingasetshenziswa kule ndlela yokupakisha. Uphawu oluphezulu noluphansi luwungqimba lwangaphakathi lwempahla yesikhwama ehlanganiswe ndawonye.
Izikhwama ezivaliwe ezinezinhlangothi ezintathu
Isikhwama sokuvala esinezinhlangothi ezintathu, okungukuthi, isikhwama sinemithungo emibili eseceleni kanye nomthungo ongaphezulu wonqenqema. Unqenqema olungaphansi lwesikhwama lwakhiwe ngokugoqa ifilimu ngokuvundlile, futhi konke ukuvala kwenziwa ngokubopha into yangaphakathi yefilimu. Izikhwama ezinjalo zingase zibe nemiphetho egoqiwe noma ingabi nayo.
Uma kunomkhawulo ogoqiwe, angama aqonde eshalofini. Ukuhluka kwesikhwama sokuvala esinezinhlangothi ezintathu ukuthatha unqenqema olungezansi, olwakhiwe ekuqaleni ngokugoqa, futhi lufinyelele ngokunamathisela, ukuze lube isikhwama sokuvala esinezinhlangothi ezine.
Izikhwama ezivaliwe ezinezinhlangothi ezine
Izikhwama zokufaka uphawu ezinezinhlangothi ezine, ngokuvamile ezenziwe ngezinto ezimbili ezinesici esiphezulu, izinhlangothi kanye nokuvalwa konqenqema olungezansi. Ngokuphambene nezikhwama ezishiwo ngaphambili, kungenzeka ukwenza isikhwama sokuvala esinezinhlangothi ezine nge-front edge bonding kusuka ezintweni ezimbili ezihlukene zepulasitiki ze-resin, uma zingahlanganiswa komunye nomunye. Izikhwama zokuvala ezinezinhlangothi ezine zingenziwa ngezindlela ezihlukahlukene, ezifana nenhliziyo noma i-oval.
Isikhathi sokuthumela: Feb-10-2023