Menene dalilan quenching nakasar da zafin magani na tanderun lantarki na gwaji

1. Rashin daidaito da dumama da sanyaya

Irin wannan ɓangaren yana zafi a cikin tanderun lantarki na gwaji, gefe ɗaya da ɗaya gefen kusa da thermocouple, gefen gaba da gefen baya na tanderun, fuskar lamba da yanayin da ba a haɗa da sashin ba, da dai sauransu, duk suna tasiri. da dumama. Yi ƙoƙarin kiyaye shi na ɗan lokaci, yanayin zafin jiki yakan zama iri ɗaya, amma ainihin zafin jiki da lokacin riƙewa ya bambanta a ko’ina, kuma tsarin canji na quenching da sanyaya shima ya bambanta. A sakamakon haka, rashin daidaituwa na damuwa na kashewa yana haifar da lalacewa na sassan. Haka kuma rashin daidaituwar sanyaya zai haifar da matsi da nakasar da ba ta dace ba, kamar motsi marar daidaituwa na wucin gadi, yanayin zafin sashin da ba ruwan sanyi yana kadawa a hankali, sannan man na farko da mai na biyu yana haifar da saurin sanyi, wanda ke haifar da sanyi mara daidaituwa. Nakasar Uniform.

2. Zazzabi zafin jiki da lokacin riƙewa

Ƙara yawan zafin jiki mai zafi, tsawaita lokacin riƙewar wutar lantarki na gwaji, da kuma kasancewar flake pearlite ko punctate pearlite a cikin tsarin asali idan aka kwatanta da pearlite na al’ada na al’ada, duk suna ƙara yawan damuwa na thermal da damuwa na ƙungiya, don haka yana ƙaruwa da quenching. sassan sun lalace. Saboda haka, domin rage nakasawa daga cikin sassa, kokarin yin amfani da ƙananan quenching zafin jiki da kuma dace rike lokaci, kuma a lokaci guda bukatar asali tsarin na zobe pearlite tare da uniform size.

3. Rage damuwa

Lokacin da aka sake yin ɓangarorin da aka kashe, ana haifar da nakasu mafi girma. Ko da sassan da aka kashe sun kasance masu zafi zuwa yanayin zafi a cikin tanderun lantarki, kuma ana kiyaye zafin jiki na wani ɗan lokaci, za su kuma haifar da nakasawa. Wannan yana nuna cewa ragowar damuwa yana cikin tanderun lantarki na gwaji. Ya taka rawa wajen dumama. Sassan bayan quenching suna cikin yanayin rashin kwanciyar hankali, kuma ragowar damuwa ba zai haifar da nakasu mai girma ba a cikin zafin jiki. Saboda iyakar ƙarfin ƙarfe na ƙarfe yana da girma sosai a cikin zafin jiki, yayin da zafin jiki ya karu, ƙayyadadden ƙayyadaddun ya ragu da sauri. Idan saurin dumama ya yi sauri don kawar da saura damuwa yayin aikin dumama, za a riƙe mafi girman zafin jiki. A yanayin zafi mafi girma, idan iyakar na roba ya fi ƙasa da ragowar damuwa, za a haifar da nakasar filastik, kuma aikin zai zama mafi bayyane lokacin da zafin jiki na dumama bai dace ba.