Why is the price difference between the same type of medium frequency induction yokunyibilikisa iziko?

Ukunyibilika kwe-Medium frequency induction inezinga eliphezulu lokufudumeza, ukusebenza okuphezulu, ilahleko ephantsi yokutshisa, ilahleko ephantsi yobushushu, ubushushu obuphantsi beworkshop, ukunciphisa ukuveliswa komsi, ukonga amandla, ukuphuculwa kwemveliso, ukuphuculwa kweemeko zabasebenzi, ukunciphisa amandla okusebenza, kunye nokucoceka kwendawo yokuhlala. Ngokukodwa kwintsimbi etyhidiweyo, i-furnace yokunyibilika ye-induction iluncedo ekufumaneni ulwelo lwe-iron-sulphur ephantsi engenakulinganiswa ne-cupola. Xa ukhetha i-medium frequency melting furnace, inkampani ye-Foundry kufuneka ikhethe oku kulandelayo ngokuhambelana nomthamo we-transformer, iimfuno zemveliso, i-quota yotyalo-mali, njl., xa kuthengwa izixhobo.

1. Medium frequency induction melting condition

1.1 Umthamo wesiguquli sokunyibilika sesantya esiphakathi

Okwangoku, kwi-SCR full-bridge parallel inverter IF unikezelo lwamandla ombane, ubudlelwane bamanani phakathi komthamo we-transformer kunye nokunikezelwa kwamandla: ixabiso le-transformer umthamo = ixabiso lonikezelo lwamandla x 1.2

Kuba IGBT isiqingatha-ibhulorho series inverter IF unikezelo lwamandla (eyaziwa njengenye ezimbini, enye ukunyibilika ukugquma enye, ezimbini ukusebenza ngaxeshanye), ubudlelwane lwamanani phakathi isiguquli umthamo kunye nonikezelo lwamandla: ixabiso umthamo transformer = ixabiso lamandla ubonelelo x 1.1

I-transformer yi-transformer yokulungisa. Ukuze kuncitshiswe ukuphazamiseka kwe-harmonics, kukude kangangoko kunokwenzeka kwinqwelomoya ekhethekileyo, oko kukuthi, umbane omnye ophakathi ophakathi uxhotyiswe nge-rectifier transformer.

1.2   IF induction fuse line voltage

Kubonelelo lwamandla oluphakathi oluphakathi kwe-1000KW, inqanaba lesithathu le-five-wire 380V, 50HZ amandla emizi-mveliso asetyenziswayo, kunye ne-6-pulse single-rectifier intermediate frequency supply yamiselwa. Kubonelelo lwamandla ombane oqhelekileyo ophakathi ngaphezulu kwe-1000KWY, kugxilwe ekusebenziseni amandla ombane angenayo angama-660V (abanye abavelisi basebenzisa i-575V okanye i-750V). Ngenxa yokuba i-575VZ okanye i-750V iyinqanaba le-voltage engekho-standard, izixhobo azilungile ukuthenga, kuyacetyiswa ukuba ungasebenzisi). Qwalasela i-12-pulse-rectifier kabini UKUBA unikezelo lwamandla ngenxa yezizathu ezibini: enye kukunyusa umbane osebenzayo olinganisiweyo ngokunyusa umbane wombane ongenayo; eyesibini inkulu I-harmonics eyenziwa ngamandla iya kuphazamisa igridi. Ukulungiswa kabini kunokufumana i-DC yangoku ngokuthe ngqo. Umthwalo wangoku ngumaza oxande, kwaye umbane womthwalo usondele kwi-sine wave, okunciphisa impembelelo yokuphazamiseka kwegridi kwezinye izixhobo.

Abanye abasebenzisi balandela ngokumfamekileyo i-voltage ephezulu (abanye i-1000KW basebenzisa i-900V yombane wombane), kwaye bazuze ukonga amandla ukusukela ngoku kuphantsi. Andazi ukuba oku kungenxa yeendleko zobomi beziko lombane. Akufanelekanga ilahleko, i-voltage ephezulu kulula ukunciphisa ubomi bamacandelo ombane. , i-platoon yobhedu, ukukhathala kwekhebula, ukwenzela ukuba ubomi besithando sombane buncitshiswe kakhulu. Ukongezelela, i-voltage ephezulu kubenzi beziko lombane, izinto eziluhlaza ziyancipha ngokwezinto eziphathekayo, iindleko zokugcina. Abavelisi beziko lombane ngokuqinisekileyo bazimisele ukwenza oko (ixabiso eliphezulu eliphantsi.) Ilahleko yokugqibela isasetyenziswa ngabavelisi beziko lombane.

2. Iimfuno zesakhono

Ngokubanzi, umthamo we-medium-frequency induction melting furnace unokumiselwa bubunzima bamaqhekeza ngamnye kunye nobunzima bentsimbi etyhidiweyo efunekayo kusuku ngalunye lokusebenza. Emva koko misela amandla kunye nokuphindaphinda konikezelo lwamandla lwe-IF. Izixhobo zokufudumeza i-induction yimveliso engeyiyo eqhelekileyo. Okwangoku, akukho mgangatho kwilizwe, kwaye ukucwangciswa ngokubanzi kweshishini kuboniswe kwiThebhile 1.

Itheyibhile 1 Iiparamitha zokukhetha isithando somlilo esiphakathi

Inokubonwa kwiTheyibhile yoku-1 ukuba ubuninzi bamandla eziko lokunyibilikisa eliphakathi langaphakathi limalunga nama-500 KW/toni, elingaphantsi kwexabiso lethiyori elilelona liphezulu le-600-800 KW, ingakumbi kuqwalaselwa ubomi bomgca kunye nolawulo lwemveliso. Ngaphantsi koxinano lwamandla aphezulu, ukushukuma kwe-electromagnetic kuya kuvelisa ukukhuhla okuqinileyo kwe-lining, kwaye iimfuno zezixhobo zelinen, iindlela zokwakha iziko, iinkqubo zokunyibilika, izixhobo kunye nezinto ezincedisayo ziphezulu. Ngokubhekiselele kolu qwalaselo lungentla, ixesha lokunyibilika kwisithando somlilo ngasinye yimizuzu engama-75 (kubandakanywa ukondla, ukonga ukungcola, ukucima kunye nexesha lobushushu). Ukuba kuyimfuneko ukunciphisa ixesha lokunyibilika kwisithando somlilo ngasinye, ukuxinana kwamandla omthombo wamandla kunokunyuswa nge-100 KW/toni ngelixa umthamo womzimba wesithando somlilo ungatshintshi.

3. Ukhetho lwesakhiwo

Ngokwemikhwa yoshishino, iziko lokunyibilika kwe-aluminium yesakhiwo kunye nesinciphisi njengoko indlela yokuthambeka eyaziwa ngokuba sisithando somlilo se-aluminium. Isithando somlilo sokunyibilika se-induction yesakhiwo sentsimbi kunye ne-cylinder ye-hydraulic njengoko i-furnace ethambekayo ibizwa ngokuba yi-steel shell furnace. Umahluko phakathi kwezi zibini uboniswe kwiThebhile 2 kunye neFigure 1.

Itheyibhile yesi-2 Isithando somlilo esineqokobhe lentsimbi kunye nesithando somlilo se-aluminiyam zahlukile (thatha i-1 yetoni yomlilo yentsimbi njengomzekelo)

Xa kuthelekiswa nesithando somlilo se-aluminium, izibonelelo zesithando somlilo sentsimbi ngamanqaku amahlanu:

I-1) I-Rugged kunye nenhle, ngakumbi kwiziko ezinomthamo omkhulu, ezifuna isakhiwo esomeleleyo esiqinileyo. Ukusuka kwindawo ekhuselekileyo yesithando somlilo, zama ukusebenzisa i-steel shell furnace.

I-2) Ijoka eyenziwe nge-silicon yentsimbi yentsimbi kwaye ikhupha imigca yamagnetic eyenziwa yi-coil induction, iyanciphisa ukuvuza kwamagnetic, iphucula ukusebenza kakuhle kwe-thermal, yandisa imveliso, kwaye igcina amandla nge-5% -8%.

I-3) Ubukho bekhava yesithando somlilo kunciphisa ukulahleka kobushushu kwaye kwandisa ukhuseleko lwezixhobo.

4) Ubomi benkonzo ende, i-aluminium i-oxidized ngakumbi kwiqondo lokushisa eliphezulu, okubangela ukukhathala kwesinyithi. Kwindawo yeshishini le-Foundry, ihlala ibonwa ukuba iqokobhe le-aluminium iqokobhe lesithando somlilo elisetyenziswe unyaka omnye okanye kunjalo laphukile, kwaye iqokobhe lentsimbi linokuvuza okuncinci ngoku, kwaye ubomi benkonzo yesixhobo budlula kakhulu iqokobhe le-aluminium. eziko.

I-5) Ukusebenza kokhuseleko Isithando somlilo sentsimbi singcono kakhulu kune-aluminium shell furnace. Xa isithando somlilo se-aluminium sinyibilikiswa, iqokobhe le-aluminium likhubazeka ngokulula ngenxa yobushushu obuphezulu kunye noxinzelelo olunzima, kwaye ukhuseleko alulunganga. I-steel shell furnace isebenzisa i-hydraulic tilting furnace kwaye ikhuselekile kwaye ithembekile.

Kutheni amaxabiso emodeli efanayo ahlukile? Unokukhetha njani “i-medium frequency melting furnace”?

Ixabiso lohlobo olufanayo lwesithando somlilo se-medium frequency induction luhluke kakhulu. Thatha itoni ye-1 yomlilo esetyenziswa ngokuqhelekileyo njengomzekelo. Ixabiso lemarike ngamanye amaxesha liyahluka ngamaxesha amaninzi, elihambelana nesakhiwo sesithando somlilo, ukukhethwa kwecandelo, umxholo wezobugcisa, inkonzo emva kokuthengisa kunye nomgangatho. Umba onezinto ezininzi ufanelekile.

Izinto ezahlukeneyo

Iqokobhe lesithando somlilo kunye nedyokhwe: Ekukhetheni iqokobhe lesithando somlilo se-aluminium, umgangatho we-1 toni ye-aluminium yeqokobhe yomlilo inobunzima beqokobhe le-400Kg kunye nobunzima be-40mm. Abanye abavelisi bahlala benobunzima kunye nobukhulu obaneleyo. Inxalenye ebaluleke kakhulu yesithando somlilo wegobolondo kukukhethwa kwejoka. Ukukhethwa kohlobo olufanayo lwejoka yesithando somlilo wegobolondo luhlukile. Umahluko wamaxabiso mkhulu kakhulu. Ngokubanzi, kufuneka kukhethwe i-silicone sheet entsha ene-high-permeability ephezulu eqengqelekayo yentsimbi ene-Z11. Intsimbi ye-Silicon Ubukhulu bephepha ngu-0.3mm, kwaye isakhiwo se-contoured samkelwe. Umphezulu we-arc yangaphakathi kunye ne-arc yangaphandle yetyhula ye-coil induction iyafana, ukwenzela ukuba ijoka inokudityaniswa ngokusondeleyo kwicala langaphandle le-coil induction, kwaye i-coil yokuthintela ubuninzi iphuma ngaphandle, kwaye ijoka lihlangene. ipleyiti yentsimbi kunye nentsimbi engatyiwayo iyanyanzeliswa, idityaniswe kwaye ilungiswe, kwaye ipholiswe ngamanzi.

(Abanye abavelisi basebenzisa inkunkuma, akukho kuqhelaniswa, okanye kwanamaphepha entsimbi e-silicon asuswe kwiziguquli ezisetyenzisiweyo ukwenza iidyokhwe,)

Ityhubhu yethusi kunye nomqolo ofanayo: Undoqo wesithando somlilo sisiphumo setyhubhu yethusi ebandayo ye-extrusion kunye netyhubhu yethusi ephonsiweyo ye-coil induction. I-T2 ityhubhu ye-copper extruded ebandayo kunye ne-giant cross-section kufuneka isetyenziswe. Unyango lwe-insulation surface yetyhubhu yobhedu lutshizwa nge-electrostatically ukuphumeza ukugquma kweKlasi H. Ukukhusela amandla ayo okugquma, i-mica tape kunye ne-alkali-free glass ribbon zisongelwe kwaye isongelwe kumphezulu kube kanye, kwaye Faka i-enamel yokukhusela ukufuma. Kukho umsantsa othile phakathi kokujika kwekhoyili. Xa i-refractory mortar ifakwe kwi-coil, udongwe oluchasayo kufuneka lufakwe kwi-gap ukuqinisa ukunamathela kweglue kwikhoyili kwikhoyili. Emva kokuba i-samente ephikisayo yakhiwe, indawo yangaphakathi ilula ukuze iququzelele ukukhutshwa kwe-lining. I-coil ikhuselwe, kwaye iintsimbi ezimbalwa zokupholisa amanzi ezingenasici zongezwa kwiindawo eziphezulu kunye nezisezantsi zekhoyili ukwandisa ukuqina okupheleleyo kunye nokuququzelela ukutshatyalaliswa kobushushu.

(Abanye abavelisi basebenzisa i-copper okanye i-T3 iityhubhu zethusi, ezinombane ophantsi kwaye kulula ukuphuka kunye nokuvuza.)

I-SCR: I-thyristor esetyenziswa ngabavelisi abahlukeneyo ngokubanzi inomgangatho ongalinganiyo. Umgangatho we-thyristor ulungile, ukusabela ngokukhawuleza kwaye izinga lokungaphumeleli liphantsi. Ngoko ke, i-thyristors yabakhiqizi abaziwayo bakhethwa, kwaye umgangatho unokwethenjelwa kwaye uzinzile.

(Xa ukhetha, umenzi wesithando sombane kufuneka abonise umenzi we-thyristor, kunye nesatifikethi semveliso yomenzi we-thyristor sinikezelwe. Ukulawulwa komgangatho we-thyristor womgangatho we-H ngu: Xiangfan Taiwan Semiconductor Co., Ltd., Xi. ‘Iziko le-Electronics yaMandla, njl.njl.)

Ikhabhinethi yamandla: Umenzi oqhelekileyo usebenzisa ikhabhinethi yepaneli yokutshiza eqhelekileyo. Hayi ikhabhathi epeyintwe ngenkcenkce. Kwaye imilinganiselo yobungakanani bekhabhinethi yamandla isemgangathweni. Abavelisi abangaguqukiyo beekhabhathi zamandla baye bancipha, ukuphakama, ububanzi kunye nobukhulu akwanele, kwaye ezinye zee-reactors zibekwe ngaphandle kwekhabhinethi yamandla. Umbane oqhelekileyo we-IF we-IF uxhotyiswe nge-low-voltage switch ngaphakathi, engadingi ukuba umsebenzisi aqulunqe i-cabinet switch switch. Abanye abavelisi abangekho rhoqo abanalo iswitshi ephantsi kwe-voltage efakwe ngaphakathi kombane. Okungabonakaliyo kwandisa iindleko zomsebenzisi (umgangatho olungileyo ophantsi-i-voltage switches nguHuanyu, Chint, Delixi, njl.).

I-Capacitor : Ikhabhinethi ebaluleke kakhulu ye-capacitor yembuyekezo yamandla asebenzayo kufuneka ixhotyiswe ngexabiso elaneleyo. Ngokuqhelekileyo, ixabiso lembuyekezo ye-capacitor yi-18–20 amaxesha amandla ombane: Ixabiso lembuyekezo ye-Capacitance (Kvar) = (20— 18) x ukunikezelwa kwamandla. Kwaye sebenzisa i-capacitors yabavelisi abaqhelekileyo.

I-Reactor : Isixhobo esiphambili se-reactor yi-silicon steel sheet. Iimveliso ezitsha eziveliswa ngabavelisi abaqhelekileyo kufuneka zisetyenziswe, kwaye amacwecwe ensimbi esetyenzisiweyo esetyenzisiweyo esetyenzisiweyo awanakuphinda asetyenziswe.

I-clamp yombhobho wamanzi : Kwisethi epheleleyo ye-medium frequency melting furnace, kukho inani elikhulu lemibhobho yamanzi edibeneyo. Ukuthetha ngokuthe ngqo, iiclamps zensimbi ezingenasici kufuneka zisetyenziswe. Kungcono ukusebenzisa i-copper slip knots. Kukulungele ukufaka kunye nokuqhaqha amaqhina ngaphandle kokugcinwa. Kufanelekile ngokukhethekileyo kwisicelo kwiintambo ezipholileyo zamanzi, ezihambelana nokuhanjiswa kwangoku kwaye azibangeli ukuvuza kwamanzi, okukhuselekileyo nokuthembekileyo.

Ukongeza kula manqaku angasentla, kukho amanye amacandelo okukhethwa kuwo, njenge-inverter non-inductive capacitors, i-resistors non-inductive, iintambo ezipholileyo ngamanzi, imivalo yobhedu yokudibanisa, imibhobho yamanzi, njl., eya kuchaphazela umgangatho kunye nexabiso. kwezixhobo. Apha asicacisi, ndiyathemba ukuba unokunikela ingqalelo xa ukhetha ukuthenga, zama ukufuna umenzi weziko lokunyibilika ukubonelela ngeenkcukacha zamacandelo aphambili kunye nabavelisi, abanakukwazi ukutyeshela nje ubume kunye nomgangatho wesixhobo kunexabiso.

Ekubeni isithando somlilo esiphakathi siyimveliso engasiyo isiqhelo, siyalelwa ukuba senziwe ngokutsha, kwaye umgangatho unxulumene ngokusondeleyo nexabiso.

I-4, amandla obugcisa

Abavelisi abaqhelekileyo batyale imali eninzi yabasebenzi kunye nezixhobo zokusebenza zokuphanda itekhnoloji ephezulu, kunye nezixhobo eziphambili kunye nethekhnoloji egqwesileyo, ebonisa imiba eyahlukeneyo malunga nesantya sokunyibilika, ukusetyenziswa kwamandla kunye nokusilela kwezixhobo. Abavelisi abaninzi abanayo imiqathango yokugunyaziswa kwiplanti, iindleko ziphantsi ngokwendalo, kwaye impembelelo yendibano kunye neenkqubo zokugunyazisa umgangatho inkulu kakhulu. Abavelisi abahlukeneyo, iinkqubo ezahlukeneyo, kunye namaxabiso ahlukeneyo nawo avelisa iimpawu ezahlukeneyo.

5, emva kwenkonzo yokuthengisa

Inkonzo elungileyo emva kokuthengisa sisiqinisekiso somgangatho wezixhobo. Akunakuphepheka xa iimveliso ze-electromechanical zihluleka. Oku kufuna inkonzo elungileyo emva kokuthengisa. Abavelisi abaqhelekileyo banabasebenzi abaneleyo bobugcisa kunye nokukwazi ukuqinisekisa ngenkonzo emva kokuthengisa. I-intermediate frequency induction melting furnace inonyaka omnye wewaranti emva kokuphinda-phinda ugunyaziso oluzinzileyo noluguquguqukayo ngaphambi kokushiya umzi-mveliso. Ngeli xesha, nakuphi na ukusilela kwesixhobo okubangelwa luxanduva olungengomntu luya kuba luxanduva lomenzi.

In short, the foundry enterprise should select the equipment that is most suitable for the current situation of the enterprise according to actual needs. In the selection process, the manufacturer should compare the manufacturing, configuration, technical solutions, and after-sales service attitudes of the equipment to select satisfactory equipment.

Isithando somlilo esiphakathi sibandakanya, i-transformer, i-air-open, i-harmonic filter, i-inverter cabinet, intambo yamanzi, i-coil induction, i-shell shell kunye nokunye okunjalo. Ulungelelwaniso olwahlukileyo lunokwenzeka kwimveliso nganye. Inokwahluka ngokuxhomekeke kwizinto eziphathekayo, ifom kunye nexabiso. Kungcono ukuxoxa ngexabiso ngokwahlukileyo. Okwangoku, isithando somlilo esiphakathi siphuhlisa ukuya kumandla aphezulu kunye nomthamo omkhulu. I-1 ton intermediate frequency furnace sele incinci kakhulu. Okwangoku, azikho zininzi ezintsha, kodwa itekhnoloji ivuthiwe kwaye iphantsi.