Ukucima i-induction yinkqubo yokucima esebenzisa i-thermal effect eyenziwa yi-induction current edlulayo kwi-forging ukutshisa umphezulu kunye nenxalenye yendawo yokubumba ukuya kubushushu bokucima, kulandelwa ukupholisa ngokukhawuleza. Ngexesha lokucima, ukukhwabanisa kufakwe kwi-sensor yesimo sobhedu kwaye kuxhunywe kwi-alternating current ye-frequency esisigxina ukuvelisa i-electromagnetic induction, ephumela kwi-current induced on the surface forging that is against the current in the induction coil. I-loop evaliweyo eyenziwe ngulo msinga obangelwayo kunye nomphezulu we-forging ibizwa ngokuba yi-eddy current. Ngaphantsi kwesenzo se-eddy yangoku kunye nokuchasana kokuzenzela ngokwawo, amandla ombane aguqulwa abe ngumbane oshushu phezu kwendawo yokubumba, ebangela ukuba umphezulu ufudumale ngokukhawuleza ukutshisa ukucima, emva koko ukubunjwa ngokukhawuleza kwaye ngokukhawuleza. ipholile ukuphumeza injongo yokucima umphezulu.
Isizathu sokuba i-eddy currents ikwazi ukufezekisa ukufudumeza kwendawo inqunywe yimpawu zokusasazwa kwe-alternating current kwi-conductor. Ezi mpawu ziquka:
- Impembelelo yolusu:
Xa i-current ngqo (DC) idlula kwi-conductor, ukuxinana kwangoku kufana ngokufanayo kwi-cross-section ye-conductor. Nangona kunjalo, xa i-alternating current (AC) idlula, ukuhanjiswa kwangoku kwi-cross-section ye-conductor ayilingani. Ubuninzi bangoku buphezulu kumphezulu we-conductor kwaye buphantsi kwiziko, kunye nokuxinana kwangoku kuncipha ngokukhawuleza ukusuka kumphezulu ukuya kwiziko. Le nto yaziwa ngokuba yimpembelelo yesikhumba se-AC. Iphezulu i-frequency ye-AC, ibonakaliswe ngakumbi impembelelo yesikhumba. Ukucima ukufudumeza kwe-induction kusebenzisa olu phawu ukufezekisa umphumo oyifunayo.
- Isiphumo sokusondela:
Xa ii-conductor ezimbini ezimeleneyo zidlula kwi-current, ukuba i-directional yangoku iyafana, i-induced back potential on the next side of two conductors yeyona inkulu ngenxa yokusebenzisana kweendawo ezitshintshanayo zemagnethi eziveliswa ngabo, kwaye langoku iqhutywa icala elingaphandle lomqhubi. Ngokuphambene noko, xa isalathiso sangoku sichasanayo, i-current iqhutyelwa kwicala elisondeleyo labaqhubi ababini, oko kukuthi, ukuhamba kwangaphakathi, le nto ibizwa ngokuba yi-proximity effect.
Ngexesha lokufudumeza kwe-induction, i-current induced kwi-forging isoloko ikwicala elichaseneyo langoku kwindandatho yokungeniswa, ngoko ke i-current induction ring igxininiswe kwi-flow yangaphakathi, kunye ne-current kwi-forging evuthayo ebekwe kwindandatho ye-induction. igxininiswe kumphezulu, okuyisiphumo somphumo osondeleyo kunye nesiphumo sesikhumba esibekwe phezulu.
Ngaphantsi kwesenzo somphumo osondeleyo, ukuhanjiswa kwe-current induced on the surface of forging is uniform kuphela xa i-gap phakathi kwe-coil induction kunye ne-forging ilingana. Ngoko ke, ukubunjwa kufuneka kujikelezwe ngokuqhubekayo ngexesha lokufudumala kwenkqubo yokutshisa ukuphelisa okanye ukunciphisa ukungalingani kokufudumeza okubangelwa yi-gap engalinganiyo, ukwenzela ukuba ufumane umgangatho wokufudumala okufanayo.
Ukongezelela, ngenxa yesiphumo esisondeleyo, imilo yendawo efudumeleyo kwi-forging ihlala ifana nesimo se-coil induction. Ngoko ke, xa usenza i-coil induction, kuyimfuneko ukwenza imilo yayo ifane nesimo sendawo yokufudumala ye-forging, ukwenzela ukuba ufezekise umphumo ongcono wokufudumeza.
- Isiphumo sokujikeleza:
Xa umbane otshintshayo udlula kwindawo emile okwesangqa okanye i-helical conductor, ngenxa yesenzo sommandla wemagnethi otshintshanayo, ukuxinana kwangoku kumphezulu ongaphandle we-conductor kuncipha ngenxa yokwanda kwe-self-inductive back electromotive force, ngelixa indawo engaphakathi Iringi ifumana eyona ingxinano iphezulu yangoku. Le nto yaziwa ngokuba yimpembelelo yokujikeleza.
Umphumo wokujikeleza unokuphucula ukusebenza kakuhle kokufudumeza kunye nesantya xa ufudumeza indawo yangaphandle yeqhekeza elibunjiweyo. Nangona kunjalo, kungalunganga ukufudumeza imingxuma yangaphakathi, njengoko umphumo wokujikeleza ubangela ukuba i-current in inductor ihambe ukusuka kumphezulu weqhekeza elibunjiweyo, elikhokelela ekunciphiseni kakhulu ukusebenza kokufudumala kunye nesantya sokufudumala. Ngoko ke, kuyimfuneko ukufakela izixhobo zamagnetic kunye nokunyuka okuphezulu kwi-inductor ukuphucula ukusebenza kakuhle kokufudumeza.
Umlinganiselo omkhulu wokuphakama kwe-axial ye-inductor ukuya kububanzi bendandatho, ngakumbi ukuvakalisa umphumo wokujikeleza. Ngoko ke, i-cross-section ye-inductor ingcono yenziwe uxande; ubume obuxande bungcono kunesikwere, kwaye imilo yesetyhula yeyona imbi kwaye kufuneka iphetshwe kangangoko
- Isiphumo esibukhali seEngile:
Xa iindawo eziphumayo ezineekona ezibukhali, imiphetho yecala kunye neradiyasi encinci yegophe zifudunyezwe kwinzwa, nokuba umsantsa phakathi kwenzwa kunye ne-forging ilingana, ukuxinana komgca wemagnethi kwiikona ezibukhali kunye neenxalenye eziphumayo zokubumba mkhulu. , ukuxinana kwangoku okubangelwayo kukhulu, isantya sokufudumeza sikhawuleza, kwaye ukushisa kugxininiswe, okuya kubangela ukuba ezi ndawo zigqithise kwaye zitshise. Le nto ibizwa ngokuba yi-Angle effect ebukhali.
Ukuze ugweme umphumo obukhali we-Angle, xa uyila i-sensor, umsantsa phakathi kwe-sensor kunye ne-Angle ebukhali okanye i-convex inxalenye yokubunjwa kufuneka yandiswe ngokufanelekileyo ukunciphisa ukuxinwa komgca wamandla kazibuthe apho, ukwenzela ukuba isantya sokufudumeza kunye nesantya sokufudumeza kunye ne-Angle ebukhali. iqondo lobushushu lokubunjwa kuyo yonke indawo lifana kangangoko kunokwenzeka. Iimbombo ezibukhali kunye neengxenye ezikhuphayo zokubumba nazo zingatshintshwa kwiikona zeenyawo okanye i-chamfers, ukwenzela ukuba umphumo ofanayo unokufumaneka.
Ngolunye ulwazi olongezelelweyo, ndiyakukhuthaza ukuba undwendwele iwebhusayithi yethu ku
Ukuba oku kuvakala kunomdla okanye ufuna ukufunda ngakumbi, unganceda undazise ngokufumaneka kwakho ukuze silungiselele ixesha elifanelekileyo lokuba siqhagamshele ukuze sabelane ngolwazi olungakumbi? Ungalibazisi ukuthumela i-imeyiledella@welongchina.com.
Ndiyakubulela kwangaphambili.
Ixesha lokuposa: Jul-24-2024
