Hanyar quenching ciki diamita surface kananan rami sassa ta high-frequency induction kayan aikin dumama

Babban mitar shigar da kayan dumama na iya amfani da inductor waya mai karkace don taurin saman diamita na ƙananan ƙananan ramuka: kayan ƙaramin ɓangaren rami shine karfe 45. Diamita na ciki na ramin tare da diamita na 20mm yana buƙatar dumama shigar da dumama da quenching, zurfin taurin Layer shine 0.8-1.0mm, kuma taurin shine 50-60HRC. An samo shi a cikin samar da cewa yana da wuya a zafi da kuma kashe ƙananan ramuka tare da diamita na 20mm ta amfani da kayan haɓaka mai girma. A gefe guda, inductor na ramukan ciki na al’ada ba su da sauƙin ƙira, kuma yana da wahala a saka maganadisu; A daya hannun, ko da ko inductor da aka yi amfani da su fesa ruwa, Har yanzu yana amfani da musamman ruwa jacket jet sanyaya hanya, wanda ba shi da mummunan quenching da sanyaya sakamako a kan workpiece, da kuma taurin ciki ne m, wanda ba zai iya ba. saduwa da bukatun fasaha.

Babban mitar shigar da dumama da quenching inductor amfani da inductor rauni daga wani tsantsa bututu jan karfe mai diamita na 4mm, tare da waje diamita na 16mm, wani farar na 7mm, jimlar 3 juyayi, da kuma gudana ruwa sanyaya a ciki. A amfani, an gano cewa inductor ba kawai wuyar ƙera ba ne, kuma ruwan sanyaya ba ya gudana cikin sauƙi, don haka zafin zafin jiki bai dace ba. Bayan quenching da dumama, ana shayar da shi kuma a sanyaya. Bai cika ba, don haka taurin workpiece bayan quenching ba daidai ba ne, wanda ya kasa cika buƙatun fasaha.

Bayan bincike da yawa, an samar da inductor na wayar karkace kuma aka keɓance shi, kuma aka yi gwajin aikin kashe ruwa na karkace. Kayan aikin yana ɗaukar babban mitar shigar da kayan dumama. A tsari sigogi ne kamar haka: da ikon samar da irin ƙarfin lantarki ne 380-400V, da Grid halin yanzu 1.2-1.5A, da anode halin yanzu ne 3-5A, da anode irin ƙarfin lantarki ne 7-9kV, tanki kewaye irin ƙarfin lantarki ne 6-7kV. kuma lokacin zafi shine 2-2.5s. Lokacin da high-mita induction dumama kayan aiki zafi sama, da surface zafin jiki na workpiece tashi, da kuma kewaye da ruwa ne vaporized samar da wani barga tururi film kewaye da workpiece, wanda ke ware workpiece daga gudãna sanyaya ruwa. Fim ɗin tururi yana da mummunan yanayin zafi kuma yana taka rawa na ɓoyewa da adana zafi, kuma yanayin zafin aikin yana tashi da sauri zuwa zafin jiki na quenching kuma yana kashewa. A wannan lokacin, an yanke wutar lantarki, fim ɗin tururi a saman kayan aikin ya karye, aikin aikin yana da sauri sanyaya ta hanyar ruwa mai sanyaya mai gudana, an gama fasalin tsarin, kuma saman aikin yana taurare. Sakamakon gwajin shine kamar haka: taurin diamita na ciki na rami na ciki shine 55-63HRC, zurfin Layer mai tauri shine 1.0-1.5mm, rarraba taurin shine uniform, raguwar rami shine kusan 0.015-0.03mm, nakasar ƙanƙara ce. , kuma an cika buƙatun fasaha. Ingancin samarwa shine guda 200 / h.

Kodayake gwajin quenching na ruwa na inductor waya yana da tasiri mai kyau akan quenching na ciki diamita na karamin rami, ya kamata mu kula da wadannan maki a cikin samar:

1. Domin wayar tagulla tana da ɗan ƙaramin ƙarfi kuma mai ƙarfi, filin ba zai iya zama ƙanƙanta ba, in ba haka ba yana da sauƙin tuntuɓar juna da haifar da ɗan gajeren kewayawa bayan kunna wuta; amma idan filin ya yi girma da yawa, dumama za ta kasance ba daidai ba kuma taurin Layer ɗin ba zai yi daidai ba. Yawan juyi yana da alaƙa da kauri daga cikin kayan aikin. Idan adadin juye-juye ya yi ƙanƙanta, taurin Layer ɗin da aka taurare ba zai yi daidai ba. Idan akwai juzu’i da yawa, impedance na inductor zai zama babba kuma tasirin dumama zai ragu. Ya kamata a zaɓi firar inductor da adadin juyi yadda ya kamata don yin aikin kashewa.

2. Sakamakon dumama na diamita na waya na jan karfe shine 2mm, kuma sauran nau’ikan suna da sauƙin ƙonewa.

3. Inductor yana da siririyar waya ta jan karfe da rashin ƙarfi. Zai girgiza ƙarƙashin aikin filin maganadisu bayan an ƙarfafa shi. Don hana inductor daga rawar jiki, kunnawa da ƙonawa, an tsara na’urar ƙarfafa firikwensin don rage girgiza.