Asalin ka'ida na induction quenching a cikin ƙirƙira

Ƙunƙarar shigar da induction wani tsari ne na kashewa wanda ke amfani da tasirin zafin da ake samu ta hanyar shigar da halin yanzu da ke wucewa ta cikin ƙirƙira don dumama saman da ɓangaren gida na ƙirƙira zuwa zafin jiki na kashewa, sannan kuma saurin sanyaya. Lokacin kashewa, ana sanya ƙirƙira a cikin firikwensin matsayi na jan ƙarfe kuma an haɗa shi zuwa wani madaidaicin halin yanzu na ƙayyadaddun mitar don samar da induction na lantarki, wanda ke haifar da haɓakar halin yanzu a saman ƙirar ƙirƙira wanda ya saba wa na yanzu a cikin coil induction. Rufaffen madauki da aka kafa ta wannan halin yanzu da aka jawo tare da saman abin ƙirƙira ana kiransa eddy current. Karkashin aikin eddy current da juriya na jujjuyawar da kanta, wutar lantarki tana jujjuya zuwa makamashin thermal da ke saman injin din, wanda hakan ya sa saman yayi zafi da sauri har ya cika ambaliya, bayan haka injin din yana nan da nan da sauri. sanyaya don cimma manufar quenching surface.

Dalilin daɗaɗɗen igiyoyin ruwa na iya cimma dumama saman ƙasa an ƙaddara shi ta hanyar halayen rarraba madaidaicin halin yanzu a cikin madugu. Waɗannan halayen sun haɗa da:

  1. Tasirin Fata:

Lokacin da kai tsaye (DC) ke wucewa ta cikin madugu, yawan adadin na yanzu ya zama iri ɗaya a cikin ɓangaren giciye na madubin. Duk da haka, lokacin da alternating current (AC) ya wuce, rarrabawar yanzu a kan ɓangaren madugu ba daidai ba ne. Girman halin yanzu yana da girma a saman madubi kuma ya ragu a tsakiya, tare da yawan halin yanzu yana raguwa da yawa daga saman zuwa tsakiya. An san wannan al'amari da tasirin fata na AC. Mafi girman mitar AC, mafi girman tasirin fata. Ƙunƙarar dumama ƙarawa yana amfani da wannan sifa don cimma tasirin da ake so.

  1. Tasirin kusanci:

 

Lokacin da na'urorin da ke kusa da su biyu suka wuce ta na yanzu, idan alkiblar halin yanzu iri ɗaya ce, ƙarfin da aka haifar da baya a gefen maƙwabtan biyu shine mafi girma saboda mu'amalar madaidaicin filayen maganadisu da aka samar da su, kuma na yanzu ana tura shi zuwa. gefen waje na madugu. Sabanin haka, idan alkiblar da ake da ita ta kasance akasin haka, ana tura na’urar zuwa gefen da ke kusa da masu gudanarwa biyu, wato magudanar ruwa ta ciki, wannan al’amari shi ake kira “proximity effect”.

A lokacin dumama shigar, halin yanzu da aka jawo akan ƙirƙira koyaushe yana cikin kishiyar na yanzu a cikin zoben induction, don haka na yanzu akan zoben induction yana mai da hankali kan kwararar ciki, kuma na yanzu akan ƙirƙira mai zafi da ke cikin zoben ƙaddamarwa. an mayar da hankali kan saman, wanda shine sakamakon sakamako na kusanci da kuma tasirin fata.

 

Ƙarƙashin aikin tasirin kusanci, rarraba abubuwan da aka haifar a kan farfajiyar ƙirƙira daidai ne kawai lokacin da rata tsakanin coil induction da ƙirƙira ta kasance daidai. Don haka, dole ne a ci gaba da jujjuya ƙirƙira yayin aikin dumama shigarwa don kawar da ko rage rashin daidaituwar dumama da ke haifar da gibin da bai dace ba, ta yadda za a sami madaidaicin dumama Layer.

 

Bugu da ƙari, saboda tasirin kusanci, siffar wuri mai zafi a kan ƙirƙira koyaushe yana kama da siffar induction coil. Sabili da haka, lokacin yin coil induction, ya zama dole a sanya siffarsa kama da siffar yankin dumama na ƙirƙira, don samun sakamako mai kyau na dumama.

  1. Tasirin Yawo:

A lokacin da alternating halin yanzu wuce ta hanyar zobe-dimbin yawa ko helical madugu, saboda da mataki na alternating Magnetic filin, da halin yanzu yawa yawa a kan m surface na madubin ya ragu saboda da ƙara kai inductive baya electromotive karfi, yayin da ciki surface zoben ya kai ga mafi girma na halin yanzu. An san wannan sabon abu a matsayin sakamako na wurare dabam dabam.

Tasirin wurare dabam dabam na iya inganta haɓakar dumama da sauri yayin dumama saman saman jabu. Duk da haka, yana da rashin amfani don dumama ramukan ciki, saboda tasirin wurare dabam dabam yana haifar da halin yanzu a cikin inductor don motsawa daga saman ɓangaren ƙirƙira, wanda ke haifar da rage yawan aikin dumama da rage saurin dumama. Sabili da haka, ya zama dole don shigar da kayan magnetic tare da haɓaka mai girma akan inductor don haɓaka haɓakar dumama.

Ya fi girma rabo daga tsayin axial na inductor zuwa diamita na zobe, da karin bayyana tasirin wurare dabam dabam. Sabili da haka, sashin giciye na inductor ya fi kyau yin rectangular; siffar rectangular ta fi murabba'i, kuma siffar madauwari ita ce mafi muni kuma ya kamata a kauce masa gwargwadon yiwuwa.

  1. Tasirin Angle mai kaifi:

 

Lokacin da ɓangarorin da ke fitowa tare da kusurwoyi masu kaifi, gefuna da ƙananan radius masu ƙirƙira suna mai zafi a cikin firikwensin, koda kuwa rata tsakanin firikwensin da ƙirƙira ya yi daidai, ƙimar filin magnetic ta cikin kusurwoyi masu kaifi da ɓarna sassan ƙirƙira ya fi girma. , Matsakaicin da aka jawo a halin yanzu ya fi girma, saurin dumama yana da sauri, kuma zafi yana da hankali, wanda zai sa waɗannan sassa suyi zafi har ma da ƙonewa. Wannan al'amari shi ake kira da sharp Angle sakamako.

 

Don guje wa tasirin Angle mai kaifi, lokacin zayyana firikwensin, rata tsakanin firikwensin da kaifi Angle ko convex part na ƙirƙira ya kamata a ƙara yadda ya kamata don rage ƙaddamar da layin ƙarfin maganadisu a can, don saurin dumama zazzabi na ƙirƙira a ko'ina sun kasance daidai kamar yadda zai yiwu. Hakanan za'a iya canza sasanninta masu kaifi da sassan da ke fitowa na ƙirƙira zuwa sasanninta na ƙafa ko chamfers, ta yadda za a iya samun sakamako iri ɗaya.

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Lokacin aikawa: Yuli-24-2024