Ultrasonic yas welding
1. Ultrasonic welding mechanism
(1) Mechanical fittings: Nyob rau hauv ultrasonic welding ob leeg, ib txheej txheem ntim txheej txheem yog tsim los ntawm kev sib cuag ntawm ob lub weldments, thiab cov khoom siv sib txuas ntawm cov hniav dev.
(2) Tshuaj tiv thaiv cov kab mob: Tom qab lub polymer yog rhuab, lub yeeb tshuaj molecular puas lawm, lub interface yog fused, thiab cov yeeb yaj duab molecular rov qhib dua tom qab txias rau ib daim ntawv cog tshuaj.
2.Plastic properties and welding kev sib raug zoo
Feem ntau yog siv cov tshuaj polymers uas siv tau los ua ultrasonically, tiam sis qhov nyuaj ntawm cov kab laug sab yog ze rau cov khoom ntawm cov yas nws tus kheej.
(1) Ntau dua qhov kev sib txhuam coefficient ntawm cov yas, qhov loj dua cov thermal conductivity, thiab qhov yooj yim dua qhov interface yog tsim los ua ib qho duab zoo nkauj, qhov zoo dua qhov txuas;
(2) Qhov nyuab nyuab tus yas yog, qhov me me qhov kev sib kis tsis yog, qhov zoo dua qhov txuas yog thaum lub dav hlau welded. On qhov tsis tooj, cov khoom muag yog qhov nyuaj rau kev sib tshuam;
(3) Cov khoom siv crystalline muaj cov kab mob txom nyem vim yog qhov ntsuas kub ntawm cov khoom mus rau hauv lub cev yog nqaim heev;
(4) Cov nplaum muag uas yooj yim rau cov tawv nqaij thaum riveting thiab ntxig siv vuam.
