Ntau qhov teeb meem xav tau kev saib xyuas hauv ultrasonic vuam

1. Weldability ntawm ob workpieces thaum vuam

Qee cov ntaub ntawv sib txawv tuaj yeem sib xyaw zoo dua, qee qhov yog miscible, thiab qee qhov tsis yog miscible. Cov khoom siv tib yam tuaj yeem welded nyob rau hauv txoj cai, tab sis thaum lub melting point ntawm lub workpiece yuav tsum welded yog ntau tshaj 350 degree, nws tsis haum rau ultrasonic vuam. Vim tias ultrasonic yoj tuaj yeem yaj lub workpiece molecules tam sim ntawd, nws yog qhov zoo dua ua li ntawd hauv 3 vib nas this. Yog tias cov txheej txheem vuam tsis tuaj yeem ua tau zoo tom qab 3 vib nas this, lwm cov txheej txheem vuam yuav tsum raug xaiv. Feem ntau hais lus, cov khoom siv ABS yog qhov yooj yim tshaj plaws rau vuam, thiab cov khoom nylon lossis PP feem ntau yog weldable.

2. Welding tuag qauv yuav tsum tau soj ntsuam nruj me ntsis

Muaj cov txheej txheem ntawm kev soj ntsuam nruj rau cov khoom tuaj ntawm cov khoom siv ultrasonic tsis tu ncua, thiab cov txheej txheem ua tiav tom qab lub khoos phis tawj software simulation thiab pov thawj, yog li qhov zoo yog lav. Cov txheej txheem no tsis tuaj yeem ua tiav hauv kev cob qhia dav dav. Yog tias cov pwm tsim tsis tsim nyog, thaum vuam me me workpieces, qhov teeb meem tshwm sim tsis pom tseeb. Thaum lub hwj chim siab, yuav muaj ntau yam tsis zoo, uas yuav ua rau cov khoom siv hluav taws xob puas ncaj qha rau qhov xwm txheej loj. Yog li ntawd, tsis txhob greedy rau pheej yig thaum muas ultrasonic pwm. Tsuas yog cov pwm zoo tuaj yeem ua kom cov khoom ua tiav zoo.

3. Lub thermal kuj yuav tsum ncav cuag lub melting point ntawm lub workpiece thaum vuam

Tom qab lub ultrasonic transducer converts lub zog hluav taws xob mus rau hauv txhua yam kev co, nws ua los ntawm cov khoom molecules ntawm workpiece. Lub acoustic tsis kam ntawm ultrasonic yoj nyob rau hauv cov khoom yog deb tsawg tshaj li nyob rau hauv cov huab cua. Thaum lub acoustic nthwv dej hla lub seam ntawm lub workpiece, lub acoustic kuj nyob rau hauv lub seam yog loj, thiab lub tshav kub zog generated yog heev loj. Qhov kub mus txog qhov melting point ntawm lub workpiece. Nrog ib tug tej yam siab, lub seam yog welded. Lwm qhov chaw ntawm lub workpiece yuav tsis raug welded vim tsis tshua muaj thermal kuj thiab tsis kub.

4. Muaj qee qhov yuav tsum tau ua rau qhov chaw vuam

Thaum lub zog ultrasonic instantaneous generated, qhov loj ntawm vuam cheeb tsam, lub zog dispersion ntau dua, qhov ua rau vuam nyhuv, thiab nws yuav tsis yooj yim rau vuam. Tsis tas li ntawd, lub yoj ultrasonic kis tau ntev, thiab lub zog poob yog proportional rau qhov kev ncua deb. Qhov kev ncua deb ntawm vuam yuav tsum tau tswj tsis pub dhau 6 cm. Lub vuam kab yuav tsum tau tswj ntawm 30 thiab 80 xov hlau, thiab caj npab thickness ntawm lub workpiece yuav tsum tsis txhob tsawg tshaj li 2 hli, txwv tsis pub nws yuav tsis tau welded zoo, tshwj xeeb tshaj yog rau cov khoom yuav tsum tau huab cua nruj.