Imishini Yokuncibilikisa Induction
Njengomkhiqizi weziko lokuncibilika kwe-induction, i-Hasung inikeza izinhlobonhlobo zezithando zezimboni zokushisa ukushisa kwegolide, isiliva, ithusi, iplatinamu, i-palladium, i-rhodium, izinsimbi nezinye izinsimbi.
I-desktop yohlobo lwe-mini induction melting furnace yakhelwe ifektri encane yobucwebe, indawo yokusebenzela noma inhloso yokusebenzisa ekhaya ye-DIY. Ungasebenzisa kokubili uhlobo lwe-quartz crucible noma i-graphite crucible kulo mshini. Usayizi omncane kodwa onamandla.
Uchungechunge lwe-MU sinikeza ngemishini encibilikayo yezidingo eziningi ezahlukene futhi enamandla okuqina (igolide) ukusuka ku-1kg ukuya ku-8kg. Izinto ezincibilikisiwe ezitsheni ezivulekile futhi zithelwa ngesandla esikhunjeni. Lezi zithando zokuncibilika zilungele ukuncibilika ama-alloys egolide nesiliva kanye ne-aluminium, ithusi, i-aso yethusi Ngenxa yejeneretha engenisa amandla efinyelela ku-15 kW kanye nefrikhwensi yokungeniswa okuphansi umphumela wokunyakazisa wensimbi muhle kakhulu. Nge-8KW, ungancibilikisa iplatinamu, insimbi, i-palladium, igolide, isiliva, njll. konke ku-1kg crucible ceramic ngokushintsha iziphambano ngokuqondile. Ngamandla angu-15KW, ungancibilikisa u-2kg noma u-3kg Pt, Pd, SS, Au, Ag, Cu, njll. ku-2kg noma 3kg i-ceramic crucible ngokuqondile.
Iyunithi encibilikayo yochungechunge lwe-TF/MDQ kanye ne-crucible ingatshekiswa futhi ikhiyelwe endaweni ngumsebenzisi kuma-engeli amaningi ukuze kugcwaliswe kancane. "Ukuthulula okuthambile" okunjalo kuvimbela ukulimala ku-crucible. Ukuthulula kuyaqhubeka futhi kuhamba kancane, kusetshenziswa i-pivot lever. Umsebenzisi uphoqeleka ukuthi ame eceleni komshini - kude nezingozi zendawo yokuthulula. Iphephe kakhulu kubasebenzisi. Yonke i-axis yokujikeleza, isibambo, isikhundla sokubamba isikhunta zonke zenziwe ngensimbi engagqwali engu-304.
Uchungechunge lwe-HVQ luyisithando somlilo esikhethekile se-vacuum esitshekisa ukushisa okuphezulu kwezinsimbi ezincibilikayo njengensimbi, igolide, isiliva, i-rhodium, i-platinum-rhodium alloy namanye ama-alloys. Amadigri evacuum angase ahambisane nezicelo zamakhasimende.
Q: Iyini i-Electromagnetic Induction?
I-Electromagnetic Induction yatholwa nguMichael Faraday ngo-1831, futhi uJames Clerk Maxwell ngokwezibalo wayichaza njengomthetho kaFaraday wokungeniswa.I-Electromagnetic Induction ingeyamanje ekhiqizwa ngenxa yokukhiqizwa kwamandla kagesi (amandla kagesi) ngenxa yokushintsha kwamandla kazibuthe.Lokhu kungenzeka uma ukhondatha ibekwe endaweni kazibuthe ehambayo (uma kusetshenziswa umthombo wamandla we-AC) noma lapho umqhubi we-conductor elokhu ehamba endaweni emile kazibuthe. Njengokusetha okunikezwe ngezansi, uMichael Faraday uhlele intambo yokuqhuba exhunywe kudivayisi ukuze ikalwe i-voltage kuyo yonke isekethe. Lapho uzibuthe webha inyakaziswa kukhoyili, umtshina kagesi ukala i-voltage kusekethe. Ngokuhlola kwakhe, uthole ukuthi kunezici ezithile ezithonya lokhu kukhiqizwa kwamandla kagesi. Kunjalo:
Inombolo Yamakhoyili: I-voltage ebangelwe ilingana ngokuqondile nenani lokujika/amakhoyili entambo. Isibalo esikhulu samajika, amakhulu ama-voltage akhiqizwayo
Ukushintsha inkambu kazibuthe: Ukushintsha indawo kazibuthe kuthinta amandla kagesi. Lokhu kungenziwa ngokuhambisa insimu kazibuthe eduze kwe-conductor noma ngokuhambisa i-conductor endaweni kazibuthe.
Ungase futhi ufune ukuhlola le mibono ehlobene nokungeniswa:
Ukungeniswa - Ukuzingenisa kanye Nokungeniswa Okuhlanganyelwe
I-Electromagnetism
Ifomula Yokungenisa Magnetic.
Q: Kuyini ukushisa kwe-induction?
I-Basics Induction iqala ngekhoyili ye-conductive material (isibonelo, ithusi). Njengoba i-current igeleza kukhoyili, insimu kazibuthe ngaphakathi naseduze kwekhoyili iyakhiqizwa. Ikhono lendawo kazibuthe ukwenza umsebenzi lincike ekuklanyweni kwekhoyili kanye nenani lamanje eligeleza kukhoyili.
Isiqondiso senkundla kazibuthe sincike ekuqondeni kokugeleza kwamanje, ngakho-ke i-current alternating ngokusebenzisa ikhoyili
kuzoholela ekutheni inkambu kazibuthe ishintshe lapho iqonde khona ngesilinganiso esifanayo nemvamisa yamanje eshintshanayo. I-60Hz AC yamanje izobangela inkambu kazibuthe ukuthi ishintshe izikhombisi-ndlela izikhathi ezingu-60 ngesekhondi. I-400kHz AC yamanje izobangela ukuthi inkambu kazibuthe ishintshe izikhathi ezingu-400,000 ngomzuzwana.Lapho into yokuqhuba, ucezu lomsebenzi, lubekwe endaweni eshintshayo kazibuthe (isibonelo, insimu ekhiqizwe nge-AC), i-voltage izongeniswa endaweni yokusebenza. (Umthetho kaFaraday). I-voltage eyenziwe izoholela ekugelezeni kwama-electron: yamanje! I-current egeleza endaweni yokusebenza izohamba ngendlela ehlukile njengamanje ku-coil. Lokhu kusho ukuthi singakwazi ukulawula imvamisa yamanje endaweni yokusebenza ngokulawula imvamisa yamanje ku-
Ikhoyili.Njengoba i-current igeleza phakathi nendawo, kuzoba khona ukumelana nokunyakaza kwama-electron. Lokhu kumelana kukhombisa ukushisa (I-Joule Heating Effect). Izinto ezikwazi ukumelana kakhulu nokugeleza kwama-electron zizokhipha ukushisa okwengeziwe njengoba i-current igeleza kuzo, kodwa ngokuqinisekile kungenzeka ukushisa izinto ezisebenza kahle kakhulu (isibonelo, ithusi) usebenzisa i-current induced. Lesi simo sibalulekile ekushisiseni okungeniswayo.Sidingani ekushiseni okungeniswayo?Konke lokhu kusitshela ukuthi sidinga izinto ezimbili eziyisisekelo ukuze ukufudumala kwe-induction kwenzeke:
Inkambu kazibuthe eshintshayo
Into esebenza ngogesi efakwe endaweni kazibuthe
I-Induction Heating iqhathaniswa kanjani nezinye izindlela zokufudumeza?
Kunezindlela eziningana zokushisisa into ngaphandle kokungeniswa. Ezinye zezinqubo ezivame kakhulu zezimboni zihlanganisa iziko legesi, iziko likagesi, namabhavu kasawoti. Lezi zindlela zonke zincike ekudluliseleni ukushisa emkhiqizweni osuka emthonjeni wokushisa (isishisi, isici sokufudumeza, usawoti owuketshezi) ngokusebenzisa i-convection kanye nemisebe. Uma ubuso bomkhiqizo bufudumala, ukushisa kudlulisa ngomkhiqizo nge-thermal conduction.
Imikhiqizo eshisayo yokungeniswa ayincikile ku-convection nasemisebeni ukuze ilethwe ukushisa endaweni yomkhiqizo. Kunalokho, ukushisa kukhiqizwa ebusweni bomkhiqizo ngokugeleza kwamanje. Ukushisa okuvela endaweni yomkhiqizo bese kudluliselwa ngomkhiqizo nge-thermal conduction.
Ukujula okukhiqizwa kukho ukushisa ngokuqondile kusetshenziswa umsinga owenziwe kuncike kokuthile okubizwa ngokuthi ukujula kwereferensi kagesi.Ukujula kwesithenjwa sikagesi kuncike kakhulu ebuningini bamanje obushintshanayo obugeleza endaweni yokusebenza. Umthamo wefrikhwensi ephezulu uzoholela ekujuleni kwereferensi kagesi okungashoni futhi amandla aphansi aphansi azoholela ekujuleni kwereferensi kagesi. Lokhu kujula kubuye kuncike ezintweni zikagesi nezikazibuthe zocezu lomsebenzi.
I-Electrical Reference Depth of High and Low FrequencyInductotherm Group izinkampani zisebenzisa leli thuba lezinto ezibonakalayo nezikagesi ukwenza ngendlela oyifisayo izixazululo zokushisisa zemikhiqizo ethile nezinhlelo zokusebenza. Ukulawula ngokucophelela amandla, imvamisa, kanye nejiyomethri yekhoyili kuvumela izinkampani ze-Inductotherm Group ukuthi zenze izinto zokusebenza ezinamazinga aphezulu okulawula inqubo nokuthembeka kungakhathaliseki ukuthi isicelo sinjani.Ukuncibilika kwe-Induction Melting
Ezinqubweni eziningi ukuncibilika kuyisinyathelo sokuqala sokukhiqiza umkhiqizo owusizo; ukuncibilika kwe-induction kuyashesha futhi kusebenza kahle. Ngokushintsha i-geometry yekhoyili yokungeniswa, iziko lokuncibilika lokungeniswa lingabamba amashaji asukela kuvolumu yenkomishi yekhofi kuya kumakhulu amathani ensimbi encibilikisiwe. Ngaphezu kwalokho, ngokulungisa imvamisa namandla, izinkampani ze-Inductotherm Group zingakwazi ukucubungula cishe zonke izinsimbi nezinto zokwakha ezihlanganisa kodwa ezingagcini nje: insimbi, insimbi nensimbi engagqwali, ama-alloys asekelwe ethusi nawethusi, i-aluminium ne-silicon. Imishini yokungeniswa iklanywe ngokwezifiso kuhlelo lokusebenza ngalunye ukuze kuqinisekiswe ukuthi lusebenza kahle ngangokunokwenzeka.Inzuzo enkulu ehambisana nokuncibilika kokungeniswa ukugoqa okuguquguqukayo. Esithandweni sokungeniswa, impahla yokushaja yensimbi iyancibilika noma ishisiswe yimanje ekhiqizwa inkambu ye-electromagnetic. Lapho insimbi incibilika, le nsimu ibangela nokuthi ukugeza kuhambe. Lokhu kubizwa ngokuthi i-inductive stirring. Lokhu kunyakaza okungaguquki ngokwemvelo kuhlanganisa ukugeza kukhiqize ukuxutshwa okufanayo futhi kusize ngokuhlanganisa ingxubevange. Inani lokunyakazisa linqunywa usayizi wesithando somlilo, amandla afakwa ensimbi, imvamisa yensimu kamagnetic kanye nohlobo.
isibalo sensimbi esithandweni. Inani lokunyakaziswa kwe-inductive kunoma yisiphi isithando somlilo lingasetshenziswa ukuze kwenziwe izinhlelo ezikhethekile uma kudingeka.Ukuncibilika kweVacuum yokungeniswaNgenxa yokuthi ukushisisa kwenziwa kusetshenziswa indawo kazibuthe, ucezu lomsebenzi (noma umthwalo) lungahlukaniswa ngokoqobo nekhoyili yokungenisa nge-refractory noma enye into. i-non-conducting medium. Indawo kazibuthe izodlula kule nto ukuze ifake i-voltage emthwalweni oqukethwe ngaphakathi. Lokhu kusho ukuthi umthwalo noma ucezu lomsebenzi lungashiswa ngaphansi kwe-vacuum noma endaweni elawulwa ngokucophelela. Lokhu kuvumela ukucutshungulwa kwezinsimbi ezisebenzayo (i-Ti, Al), ama-alloys akhethekile, i-silicon, i-graphite, nezinye izinto ezithintekayo ezithintekayo.I-Induction HeatingNgokungafani nezinye izindlela zokuvutha, ukushisisa kokungenisa kuyalawuleka ngokunembile kungakhathaliseki usayizi weqoqo.
Ukushintsha amandla amanje, i-voltage, kanye nemvamisa ngokusebenzisa ikhoyili yokungeniswa kuholela ekushiseni okulungiswe kahle, okulungele ukusetshenziswa okunembile njengokuqiniswa kwekesi, ukuqina nokufudumeza, ukuhlanganisa nezinye izinhlobo zokwelapha ukushisa. Izinga eliphezulu lokunemba libalulekile ezinhlelweni ezibucayi ezifana nezimoto, i-aerospace, i-fiber optics, ibhondi yezinhlamvu, ukuqinisa izintambo kanye nokufudumeza kwentambo yasentwasahlobo. Ukushisa kokungeniswa kulungele kahle ukusetshenziswa kwensimbi okukhethekile okubandakanya i-titanium, izinsimbi eziyigugu, nezinhlanganisela ezithuthukisiwe. Ukulawula ukushisa okunembile okutholakalayo nge-induction akuqhathaniswa. Ngaphezu kwalokho, kusetshenziswa izinto eziyisisekelo zokushisisa njengezinhlelo zokushisisa ze-vacuum crucible, ukufudumeza kwe-induction kungathwalwa ngaphansi komkhathi ukuze kusetshenziswe ngokuqhubekayo. Isibonelo ukufakwa okukhanyayo kweshubhu nepayipi lensimbi engagqwali.
I-High Frequency Induction Welding
Uma ukufakwa kulethwa kusetshenziswa i-High Frequency (HF) yamanje, ngisho nokushisela kungenzeka. Kulesi sicelo ukujula kwereferensi kagesi okungajulile okungafinyelelwa nge-HF yamanje. Kulokhu ucu lwensimbi lwakhiwa ngokuqhubekayo, bese ludlula kusethi yemiqulu eklanywe ngokunembile, inhloso yayo eyodwa kuwukuphoqa imiphetho ye-strip ehlanganisiwe futhi yakhe ukushisela. Ngaphambi nje kokuba umugqa owenziwe ufinyelele isethi yamaroli, udlula ikhoyili yokungeniswa. Kulokhu, amandla ehlela ezansi eduze kwe-"vee" yejiyomethri edalwe imiphetho yemigqa esikhundleni sokuzungeza ngaphandle kwesiteshi esakhiwe. Njengoba i-current igeleza emaphethelweni e-strip, izoshisa ifike ezingeni lokushisa elifanele le-welding (ngaphansi kwezinga lokushisa elincibilikayo lempahla). Lapho imiphetho icindezelwa ndawonye, yonke imfucumfucu, ama-oxides, nokunye ukungcola kuyaphoqeleka ukuba kuphumele ekushiseleleni okuqinile.
Ikusasa Ngenkathi ezayo yezinto eziklanywe kakhulu, amandla ahlukile kanye nesidingo sokunika amazwe asathuthuka amandla, amakhono ayingqayizivele okwenziwa anikeza onjiniyela nabaklami besikhathi esizayo indlela yokushisisa esheshayo, ephumelelayo nenembayo.