Txoj Cai Ua Haujlwm Ntawm Ultrasonic Yas Vuam Tshuab

Thaum ultrasonic nthwv dej ua rau ntawm cov thermoplastic yas hu rau saum npoo, nws yuav ua rau kaum tawm txhiab tus kev vibrations ib ob. Hom kev vibration siab no nrog rau qee qhov amplitude yuav kis tau lub zog ultrasonic mus rau qhov chaw vuam los ntawm lub vuam qaum. Vim tias qhov chaw vuam yog ob Lub acoustic tsis kam ntawm qhov sib cuam tshuam ntawm txhua qhov vuam yog qhov loj, yog li qhov kub thiab txias hauv zos yuav raug tsim. Tsis tas li ntawd, vim qhov tsis zoo thermal conductivity ntawm cov yas, nws tsis tuaj yeem muab faib rau lub sijhawm, thiab nws sib sau ua ke hauv qhov chaw vuam, ua rau qhov chaw sib cuag ntawm ob lub plastics kom yaj sai, thiab tom qab siv qee qhov siab. , lawv muab sib xyaw ua ke. Tom qab lub ultrasonic nres, cia lub siab mus ntxiv rau ob peb feeb kom nws solidify thiab zoo, thiaj li hais tias ib tug muaj zog molecular saw yog tsim los mus cuag lub hom phiaj ntawm vuam, thiab vuam lub zog yuav nyob ze rau lub zog ntawm raw khoom. Qhov zoo ntawm ultrasonic yas vuam nyob ntawm peb yam: lub amplitude ntawm lub transducer' s vuam taub hau, thov siab thiab lub sij hawm vuam. Lub sijhawm vuam thiab vuam lub taub hau siab tuaj yeem hloov kho, thiab qhov amplitude yog txiav txim siab los ntawm cov transducer thiab lub horn. Nws muaj qhov tsim nyog rau kev sib cuam tshuam ntawm peb qhov ntau. Thaum lub zog tshaj qhov tsim nyog tus nqi, melting npaum li cas ntawm cov yas yog loj, thiab cov khoom siv welded yog yooj yim deform; Yog hais tias lub zog me me, nws tsis yooj yim rau vuam khov kho, thiab lub siab thov tsis tuaj yeem loj dhau. Qhov siab tshaj plaws yog cov khoom ntawm sab ntev ntawm cov welded ib feem thiab qhov pom kev siab ntawm 1 hli ntawm ntug.