Kuwanda kweiyo ultrasonic wave ndiko kuwanda kwekudengenyeka kweiyo sosi inonzwika.Iyo inonzi vibration frequency ndiyo nhamba yekudzokorora mafambiro pasekondi, iyo unit iHertz, kana Hertz kwenguva pfupi.Wave ndiko kuparadzira vibration, kureva kuti, vibration inofambiswa pane yekutanga frequency.Saka kuwanda kwesaisai ndiko kuwanda kwekuzunguzika kwechitubu chezwi.Mafungu anogona kukamurwa kuita marudzi matatu, anoti infrasonic waves, acoustic waves, uye ultrasonic waves.Kuwanda kwemafungu e infrasound ari pasi pe20Hz;kuwanda kwemafungu eruzha ndeye 20Hz ~ 20kHz;kuwanda kwemafungu e ultrasonic ari pamusoro pe20kHz.Pakati pavo, mafungu e infrasound uye ultrasound kazhinji haanzwike munzeve dzevanhu.Nekuda kweiyo yakakwira frequency uye pfupi wavelength, iyo ultrasonic wave ine yakanaka kutapurirana kutungamira uye yakasimba yekupinza kugona.Ichi ndicho chikonzero iyo ultrasonic yekuchenesa muchina wakagadzirwa uye unogadzirwa.
Basic principle:
Chikonzero nei iyo ultrasonic cleaner inogona kuita basa rekuchenesa tsvina inokonzerwa neinotevera: cavitation, acoustic flow, acoustic radiation pressure uye acoustic capillary effect.
Munguva yekuchenesa, nzvimbo yetsvina inokonzera kuparadzwa, kuputika, kupatsanurwa, emulsification uye kupera kwefirimu yetsvina pamusoro.Zvinhu zvakasiyana zvine maitiro akasiyana pamushini wekugeza.Ultrasonic cleaners inonyanya kuvimba nekudengenyeka kwe cavitation bubbles (unexploded cavitation bubbles) kune iyo tsvina isina kunyanya kusungirirwa.Pamucheto wetsvina, nekuda kwekudengenyeka kwakasimba uye kuputika kwemapulsed bubbles, simba rekubatanidza pakati pefirimu retsvina uye pamusoro pechinhu chacho rinoparadzwa, iro rine simba rekubvarura uye kuputika.Acoustic radiation pressure uye acoustic capillary effect inosimudzira kupinza kwemvura yekuwachisa munzvimbo diki dzakadzoserwa uye pores echinhu chinofanira kucheneswa, uye kuyerera kweruzha kunogona kukurumidzira kupatsanurwa kwetsvina kubva pamusoro.Kana kunamatira kwetsvina kumusoro kwakasimba, iyo micro-shock wave inogadzirwa nekuputika kwecavitation bubble inoda kushandiswa kudhonza tsvina kubva pamusoro.
Iyo ultrasonic yekuchenesa muchina inonyanya kushandisa iyo "cavitation effect" yemvura-apo mafungu e-ultrasonic anopenya mumvura, mamorekuru emvura dzimwe nguva anotambanudzwa uye dzimwe nguva akamanikidzwa, achigadzira asingaverengeki madiki madiki, ayo anonzi "cavitation bubbles".Kana iyo cavitation bubble inoputika pakarepo, yemunharaunda hydraulic shock wave (kumanikidza kunogona kunge kwakakwira se1000 atmospheres kana kupfuura) ichagadzirwa.Pasi pesimba rinoramba riripo rekumanikidza uku, marudzi ese etsvina anonamatira pamusoro peiyo workpiece achabviswa;panguva imwecheteyo, iyo ultrasonic wave Pasi pechiito, iyo pulsating inokurudzira yekuchenesa mvura inowedzera, uye kuparara, kupararira uye emulsification kunowedzera, nokudaro kuchenesa workpiece.
Kuchenesa zvakanakira:
a) Yakanaka yekuchenesa mhedzisiro, kuchena kwepamusoro uye kuchena kwakafanana kwese maworkpieces;
b) Iyo yekumhanyisa yekuchenesa inokurumidza uye kugona kwekugadzira kunovandudzwa;
c) Hapana chikonzero chekubata mvura yekuchenesa nemaoko evanhu, iyo yakachengeteka uye yakavimbika;
d) Makomba akadzika, maburi uye zvikamu zvakavanzika zvechishandiso chinogonawo kucheneswa;
e) Hapana kukuvadzwa pamusoro peiyo workpiece;
f) Sevha zvinonyungudutsa, simba rekupisa, nzvimbo yebasa uye yebasa, nezvimwe.
Nguva yekutumira: Jun-22-2021