Dab tsi yog plaub qhov tsis sib xws ntawm ultrasonic vuam tshuab
Lub hauv paus ntsiab lus ntawm ultrasound yog tias lub tshuab hluav taws xob yuav tsim 20KHz (los yog 15KHz) high-voltage thiab high-frequency signals. Lub teeb liab yog hloov mus rau hauv high-frequency mechanical vibration los ntawm lub zog hloov dua siab tshiab, uas yog siv rau cov yas workpiece, dhau ntawm qhov chaw ntawm lub workpiece thiab nruab nrab ntawm cov molecules. Kev sib txhuam tsub kom qhov kub hloov mus rau lub interface. Thaum qhov kub ncav cuag lub melting point ntawm lub workpiece nws tus kheej, lub interface ntawm lub workpiece yuav yaj sai sai, thiab ces sau qhov sib txawv ntawm lub interfaces. Thaum lub vibration nres, lub workpiece yog txias thiab tsim nyob rau hauv ib tug tej yam siab mus cuag high-zoo vuam. Plaub yam tsis tseem ceeb ntawm lub tshuab ultrasonic vuam yog raws li hauv qab no:
1. Ultrasonic zaus
Lub vibration zaus yog txiav txim los ntawm lub ntuj zaus ntawm lub tshuab tshuab. Rau cov khoom siv dav dav, tshwj tsis yog tias muaj kev xav tau tshwj xeeb, nws qhov loj me yog qhov ua tau tas li. Thaum xaiv qhov vibration zaus, qhov xwm thiab thickness ntawm cov khoom siv vuam yuav tsum raug txiav txim siab. Thaum lub thickness ntawm cov khoom siv vuam raug txo, sim siv ntau zaus ultrasonic tsis. Nyob rau hauv cov ntaub ntawv no, nce qhov zaus yog ib txoj hauv kev los txo qhov amplitude yam tsis tau hloov lub suab zog. Tom qab txo qhov amplitude, qhov zoo thiab qhov tsis zoo alternating kev ntxhov siab ua rau lub vuam yuav raug txo, yog li txo qhov kev pheej hmoo ntawm kev qaug zog. Qhov kev pheej hmoo no yog siab heev thaum vuam tsis tshua muaj welding nyias. Raws li qhov siab nce, lub zog vibration tau siv rau hauv cov txheej txheem ntawm kev xa cov kev co mus rau qhov vuam yuav nce ntxiv. Nws tuaj yeem pom tias thaum vuam tuab weldments, tsawg zaus ultrasonic vibration yuav tsum raug xaiv.
2. Vuam siab
Kev sib cuag lub siab kom ntseeg tau tias kev sib kis ntawm ultrasonic vibrations tuaj yeem ua tiav, thiab tib lub sijhawm, cov hlau tsim cov yas ntws uas yuav tsum tau ua rau kev sib koom ua ke. Rau kev sib txuas ntawm cov khoom sib txawv thiab cov thicknesses, qhov qis qis ntawm kev sib cuag lub siab xav tau los tsim cov kev sib koom ua ke tsis sib npaug. Nws qhov loj tuaj nrog qhov nce hauv qhov txwv tsis pub, hardness thiab thickness ntawm cov hlau weld. Feem ntau tsim nyog kev sib cuag qhov tseem ceeb kuj nce nrog qhov nce hauv amplitude.
3. Ultrasonic vuam lub sij hawm
Raws li qhov xwm txheej ntawm cov khoom siv, tuab thiab qee qhov tsis sib xws, lub sijhawm vuam muaj qhov sib txawv, feem ntau tsis ntau tshaj 4 vib nas this. Qhov kev hloov ntawm lub sijhawm vuam cuam tshuam nrog cov khoom thiab cov tuab ntawm cov hlau vuam yog cuam tshuam nrog kev hloov ntawm kev sib cuag.
4. Ultrasonic amplitude
Amplitude yog qhov yooj yim parameter ntawm ultrasonic vuam. Nws txiav txim siab tshem tawm cov yeeb yaj kiab saum npoo, qhov loj thiab qhov chaw ntawm cov yas deformation cheeb tsam thiab qib ntawm cov cua sov, thiab yog li txiav txim siab qhov zoo ntawm qhov sib koom ua ke. Rau ib tug ultrasonic horn nrog ib tug tej yam amplification yam, nws amplitude yuav txiav txim tau los ntawm kev hloov cov zis voltage parameter ntawm lub generator. Thaum vuam, lub amplitude yog txiav txim raws li qhov xwm thiab thickness ntawm cov khoom, xws li los ntawm 5 mus rau 25 microns.
