Abubuwan da ke shafar yawan amfani da baƙin ƙarfe na yau da kullun
Domin yin nazarin wata matsala, da farko muna buƙatar sanin wasu ka'idoji na asali, waɗanda za su taimaka mana mu fahimta. Da farko, muna buƙatar sanin ra'ayoyi guda biyu. Na farko shine musanya maganadisu, wanda, a taƙaice, yana faruwa a cikin tsakiyar ƙarfe na transformer da kuma a cikin haƙoran stator ko rotor na mota; Na ɗaya shine ikon maganadisu na juyawa, wanda stator ko rotor yoke na motar ke samarwa. Akwai labarai da yawa waɗanda suka fara daga maki biyu kuma suna ƙididdige asarar ƙarfe na motar bisa ga halaye daban-daban bisa ga hanyar mafita da ke sama. Gwaje-gwaje sun nuna cewa zanen ƙarfe na silicon yana nuna waɗannan abubuwan da ke faruwa a ƙarƙashin maganadisu na halaye biyu:
Idan yawan kwararar maganadisu ya ƙasa da 1.7 Tesla, asarar hysteresis da magnetization mai juyawa ke haifarwa ya fi wanda magnetization mai juyawa ke haifarwa; Idan ya fi 1.7 Tesla, akasin haka gaskiya ne. Yawan kwararar maganadisu na yoke na motar gabaɗaya yana tsakanin 1.0 da 1.5 Tesla, kuma asarar hysteresis mai juyawa da ta dace ta kusan 45 zuwa 65% fiye da asarar hysteresis mai juyawa da ta canza.
Ba shakka, ana amfani da ƙarshen da ke sama, kuma ban tabbatar da su da kaina a aikace ba. Bugu da ƙari, lokacin da filin maganadisu a cikin tsakiyar ƙarfe ya canza, ana haifar da wutar lantarki a cikinsa, wanda ake kira eddy current, kuma asarar da ta haifar ana kiranta asarar wutar lantarki ta eddy. Domin rage asarar wutar lantarki ta eddy, ba za a iya yin tsakiyar ƙarfen motar gaba ɗaya zuwa cikakken tubali ba, kuma ana tara shi a tsaye ta hanyar zanen ƙarfe mai rufi don hana kwararar wutar lantarki ta eddy. Tsarin lissafi na musamman don amfani da ƙarfe ba zai yi wahala a nan ba. Tsarin asali da mahimmancin lissafin amfani da ƙarfe na Baidu zai bayyana sarai. Ga abin da ke tafe na wasu muhimman abubuwa da ke shafar amfani da ƙarfe, don kowa ya iya ci gaba ko baya wajen gano matsalar a aikace-aikacen injiniyanci.
Bayan tattauna abin da ke sama, me yasa kera buga ƙarfe ke shafar yawan amfani da ƙarfe? Halayen tsarin buga ƙarfe sun dogara ne akan siffofi daban-daban na injunan bugawa, kuma suna tantance yanayin yankewa da matakin damuwa daidai da buƙatun nau'ikan ramuka da ramuka daban-daban, don haka tabbatar da yanayin yankunan damuwa marasa zurfi a kusa da gefen lamination. Saboda alaƙar da ke tsakanin zurfi da siffa, sau da yawa yana shafar kusurwoyi masu kaifi, har ma matakan damuwa masu yawa na iya haifar da asarar ƙarfe mai yawa a yankunan damuwa marasa zurfi, musamman a cikin dogon gefun yankewa a cikin kewayon lamination. Musamman, galibi yana faruwa ne a yankin alveolar, wanda galibi yakan zama abin da bincike ke mayar da hankali a kai a cikin ainihin tsarin bincike. Ana ƙayyade ƙananan zanen ƙarfe na silicon sau da yawa ta hanyar manyan girman hatsi. Tasirin na iya haifar da burrs na roba da yankewa a ƙasan takardar, kuma kusurwar tasirin na iya yin tasiri mai mahimmanci akan girman burrs da yankunan lalacewa. Idan yankin damuwa mai yawa ya miƙe tare da yankin lalacewa na gefen zuwa cikin kayan, tsarin hatsi a waɗannan yankuna ba makawa zai fuskanci canje-canje masu dacewa, ya karkace ko ya karye, kuma tsawaita iyaka mai yawa zai faru tare da alkiblar tsagewa. A wannan lokacin, yawan iyakokin hatsi a yankin damuwa a alkiblar yankewa zai ƙaru ba makawa, wanda ke haifar da ƙaruwar asarar ƙarfe a cikin yankin. Don haka, a wannan lokacin, ana iya ɗaukar kayan da ke cikin yankin damuwa a matsayin kayan asara mai yawa wanda ke faɗuwa a saman lamination na yau da kullun tare da gefen tasiri. Ta wannan hanyar, ana iya tantance ainihin daidaiton kayan gefen, kuma ana iya ƙara tantance ainihin asarar gefen tasiri ta amfani da samfurin asarar ƙarfe.
1. Tasirin Tsarin Zubar da Ruwa akan Asarar Karfe
Yanayin tasirin asarar ƙarfe galibi yana nan a ɓangaren zanen ƙarfe na silicon, kuma matsin lamba na injiniya da na zafi zai shafi zanen ƙarfe na silicon tare da canje-canje a cikin halayensu na ainihi. Ƙarin matsin lamba na injiniya zai haifar da canje-canje a asarar ƙarfe. A lokaci guda, ci gaba da ƙaruwar zafin jiki na cikin motar zai kuma haifar da faruwar matsalolin asarar ƙarfe. Daukar ingantattun matakan rage damuwa don kawar da ƙarin matsin lamba na injiniya zai yi tasiri mai kyau wajen rage asarar ƙarfe a cikin motar.
2. Dalilan da ke haifar da asarar da ta wuce kima a tsarin masana'antu
Takardun ƙarfe na silicon, a matsayin babban kayan maganadisu ga injina, suna da tasiri mai mahimmanci akan aikin injin saboda bin ƙa'idodin ƙira. Bugu da ƙari, aikin zanen ƙarfe na silicon masu matsayi ɗaya na iya bambanta daga masana'antun daban-daban. Lokacin zaɓar kayan aiki, ya kamata a yi ƙoƙari don zaɓar kayan daga masana'antun ƙarfe na silicon masu kyau. Ga wasu muhimman abubuwan da suka shafi yawan amfani da ƙarfe da aka taɓa fuskanta a baya.
Ba a rufe takardar ƙarfe ta silicon ba ko kuma ba a yi mata magani yadda ya kamata ba. Ana iya gano irin wannan matsalar yayin gwajin takardar ƙarfe ta silicon, amma ba duk masana'antun motoci ne ke da wannan kayan gwaji ba, kuma galibi masana'antun motoci ba sa gane wannan matsalar sosai.
Rufin da ya lalace tsakanin zanen gado ko gajerun da'ira tsakanin zanen gado. Wannan nau'in matsala tana faruwa ne a lokacin ƙera tsakiyar ƙarfe. Idan matsin lamba yayin lamination na tsakiyar ƙarfe ya yi yawa, wanda ke haifar da lalacewar rufin tsakanin zanen gado; Ko kuma idan burrs sun yi girma bayan an huda, ana iya cire su ta hanyar gogewa, wanda ke haifar da mummunan lalacewa ga rufin saman huda; Bayan an kammala lamination na tsakiyar ƙarfe, ramin ba shi da santsi, kuma ana amfani da hanyar fayil; A madadin haka, saboda dalilai kamar rashin daidaituwar stator bore da rashin daidaituwa tsakanin stator bore da leben wurin zama na injin, ana iya amfani da juyawa don gyarawa. Amfani da waɗannan hanyoyin samarwa da sarrafawa na injin a zahiri yana da tasiri mai mahimmanci akan aikin injin, musamman asarar ƙarfe.
Idan ana amfani da hanyoyi kamar ƙonawa ko dumamawa da wutar lantarki don wargaza na'urar, hakan na iya sa tsakiyar ƙarfe ya yi zafi sosai, wanda ke haifar da raguwar ƙarfin maganadisu da kuma lalacewar rufin da ke tsakanin zanen gado. Wannan matsalar galibi tana faruwa ne yayin gyaran na'urar juyawa da injin yayin samarwa da sarrafawa.
Haɗa walda da sauran hanyoyin aiki na iya haifar da lalacewar rufin da ke tsakanin tari, wanda hakan ke ƙara yawan asarar wutar lantarki.
Rashin isasshen nauyin ƙarfe da kuma rashin cikas tsakanin zanen gado. Sakamakon ƙarshe shine nauyin tsakiyar ƙarfe bai isa ba, kuma mafi kyawun sakamako shine cewa wutar lantarki ta wuce juriya, yayin da akwai yiwuwar asarar ƙarfe ta wuce misali.
Rufin da ke kan takardar ƙarfe ta silicon ya yi kauri sosai, wanda hakan ke sa da'irar maganadisu ta cika sosai. A wannan lokacin, lanƙwasa tsakanin wutar lantarki mara nauyi da ƙarfin lantarki ya lanƙwasa sosai. Wannan kuma muhimmin abu ne a cikin samarwa da sarrafa zanen ƙarfe na silicon.
A lokacin samarwa da sarrafa ƙwayoyin ƙarfe, yanayin ƙwayar da ke cikin bututun ƙarfe na silicon da kuma abin da aka haɗa a saman sassa na iya lalacewa, wanda ke haifar da ƙaruwar asarar ƙarfe a ƙarƙashin wannan ƙarfin maganadisu; Ga injunan mita masu canzawa, ya kamata a yi la'akari da ƙarin asarar ƙarfe da harmonics ke haifarwa; Wannan wani abu ne da ya kamata a yi la'akari da shi sosai a cikin tsarin ƙira.
Baya ga abubuwan da ke sama, ƙimar ƙira ta asarar ƙarfen mota ya kamata ta dogara ne akan ainihin samarwa da sarrafa zuciyar ƙarfe, kuma ya kamata a yi duk mai yiwuwa don tabbatar da cewa ƙimar ka'idar ta dace da ainihin ƙimar. Ana auna lanƙwasa halayen da masu samar da kayan gabaɗaya ke bayarwa ta amfani da hanyar Epstein square coil, amma alkiblar maganadisu na sassa daban-daban a cikin motar ta bambanta, kuma ba za a iya la'akari da wannan asarar ƙarfe na musamman mai juyawa a halin yanzu ba. Wannan na iya haifar da bambance-bambancen matakai na rashin daidaito tsakanin ƙimar da aka ƙididdige da aka auna.
Hanyoyi don rage asarar ƙarfe a cikin ƙirar injiniya
Akwai hanyoyi da yawa don rage yawan amfani da ƙarfe a fannin injiniyanci, kuma mafi mahimmanci shine a daidaita maganin da yanayin. Tabbas, ba wai kawai game da amfani da ƙarfe ba ne, har ma game da wasu asara. Hanya mafi mahimmanci ita ce sanin dalilan asarar ƙarfe mai yawa, kamar yawan maganadisu mai yawa, mita mai yawa, ko yawan cikawa a gida. Tabbas, a gefe guda, ya zama dole a kusanci gaskiya kamar yadda zai yiwu daga ɓangaren kwaikwayo, kuma a gefe guda, ana haɗa tsarin da fasaha don rage ƙarin amfani da ƙarfe. Hanyar da aka fi amfani da ita ita ce ƙara amfani da kyawawan zanen ƙarfe na silicon, kuma ba tare da la'akari da farashi ba, ana iya zaɓar ƙarfe mai ƙarfi na silicon da aka shigo da shi. Tabbas, haɓaka sabbin fasahohin cikin gida da ke amfani da makamashi ya kuma haifar da ci gaba mai kyau a sama da ƙasa. Masana'antar ƙarfe ta cikin gida kuma suna ƙaddamar da samfuran ƙarfe na silicon na musamman. Asalin asali yana da kyakkyawan rarrabuwa na samfura don yanayi daban-daban na aikace-aikace. Ga wasu hanyoyi masu sauƙi don haɗuwa:
1. Inganta da'irar maganadisu
Inganta da'irar maganadisu, a takaice, ita ce inganta sine na filin maganadisu. Wannan yana da mahimmanci, ba wai kawai ga injinan shigar da mitar da aka gyara ba. Injinan shigar da mitar da ba ta canzawa da injinan synchronous suna da mahimmanci. Lokacin da nake aiki a masana'antar injinan yadi, na ƙera injina biyu masu aiki daban-daban don rage farashi. Tabbas, mafi mahimmanci shine kasancewar ko rashin sandunan da suka karkace, wanda ya haifar da halayen sinusoidal marasa daidaito na filin maganadisu na iska. Saboda aiki a manyan gudu, asarar ƙarfe tana da babban rabo, wanda ke haifar da babban bambanci a cikin asarar da ke tsakanin injina biyu. A ƙarshe, bayan wasu ƙididdiga na baya, bambancin asarar ƙarfe na injin da ke ƙarƙashin tsarin sarrafawa ya ƙaru da fiye da sau biyu. Wannan kuma yana tunatar da kowa game da haɗa algorithms na sarrafawa lokacin da ake sake yin injinan sarrafa saurin mitar da ba ta canzawa ba.
2. Rage yawan maganadisu
Ƙara tsawon tsakiyar ƙarfe ko ƙara yankin ƙarfin maganadisu na da'irar maganadisu don rage yawan kwararar maganadisu, amma adadin ƙarfen da ake amfani da shi a cikin injin yana ƙaruwa daidai gwargwado;
3. Rage kauri na guntun ƙarfe don rage asarar wutar lantarki da aka haifar
Sauya zanen ƙarfe na silicon mai zafi da zanen ƙarfe na silicon mai sanyi zai iya rage kauri zanen ƙarfe na silicon, amma siririn guntun ƙarfe zai ƙara yawan guntun ƙarfe da farashin kera motoci;
4. Ɗauki zanen ƙarfe na silicon mai sanyi da aka yi birgima tare da kyakkyawan ƙarfin maganadisu don rage asarar hysteresis;
5. Daukar murfin ƙarfe mai ƙarfi mai ƙarfi;
6. Fasahar sarrafa zafi da masana'antu
Damuwar da ta rage bayan sarrafa guntun ƙarfe na iya yin tasiri sosai ga asarar injin. Lokacin sarrafa zanen ƙarfe na silicon, hanyar yankewa da matsin lamba na huda suna da tasiri sosai kan asarar tsakiyar ƙarfe. Yanke hanyar birgima na zanen ƙarfe na silicon da kuma yin maganin zafi akan zanen ƙarfe na silicon na iya rage asara da kashi 10% zuwa 20%.
Lokacin Saƙo: Nuwamba-01-2023
