Menene hanyoyin dumama gama gari don ƙaddamar da tanderun dumama? Yadda za a zabi?

(1) Saboda nau’i-nau’i daban-daban na sassan dumama da kuma wurare daban-daban na yanki mai tauri, dole ne a yi amfani da matakai masu dacewa don aiki. Bisa manufa, shigowa dumama tanderu quenching ya kasu kashi biyu: dumama lokaci guda da quenching za su dumama yankin da aka taurare a lokaci guda. Bayan an dakatar da dumama, ana yin sanyaya a lokaci guda, kuma matsayi na dangi na sassa da firikwensin ba ya canzawa yayin aikin dumama. A lokaci guda kuma, ana iya raba hanyar dumama zuwa sassa masu jujjuyawa ko mara jujjuyawa a cikin aikace-aikacen, kuma hanyar sanyaya za a iya raba nau’ikan biyu: faɗuwa cikin injin feshin ruwa ko fesa ruwa daga inductor. Ta fuskar karuwar amfani da janareta (sai dai janareta guda daya da ke samar da injunan kashe wuta da yawa), sannan sassan masu zafi suna fada cikin injin feshin ruwa, duk abin da ake amfani da shi da kuma abin amfani da janareta ya fi na hanyar feshin inductor.

(2) Binciken quenching a ciki shigowa dumama tanderu ana kiransa ci gaba da quenching. Wannan hanyar tana dumama wani yanki ne kawai na wurin da za a kashe a lokaci guda. Ta hanyar motsin dangi tsakanin inductor da ɓangaren dumama, ana motsa yankin dumama a hankali zuwa wurin sanyaya. Hakanan za’a iya raba quenching quenching zuwa sassa mara jujjuyawa (kamar na’urar jagorar hanya quenching) da jujjuyawar (kamar silinda mai tsayi mai tsayi). Bugu da kari, akwai quenching da’ira, kamar na waje kwane-kwane quenching na babban cam; scanning jirgin sama quenching, kuma nasa ne a cikin category na scanning quenching. Ƙaƙƙarfan dubawa ya dace da yanayi inda babban yanki yana buƙatar zafi kuma ƙarfin wutar lantarki bai isa ba. Yawancin ƙwarewar samarwa yana nuna cewa hanyar dumama lokaci ɗaya a ƙarƙashin ikon samar da wutar lantarki iri ɗaya, yawan aikin ɓangaren ya fi yadda ake yin sikandire, kuma an rage yankin kayan aikin kashewa daidai. Don sassan shaft tare da matakai, yayin dubawa da kashewa, saboda karkatar da filin lantarki na inductor daga babban diamita zuwa ƙaramin matakin diamita, sau da yawa ana samun yankin canji tare da ƙarancin dumama, wanda ke sa Layer ɗin taurara ya daina tsawon tsayi. na shaft. A zamanin yau, hanyar dumama na yanzu ta lokaci guda ta kasance ta ko’ina a cikin kasar Sin don ci gaba da ci gaba da taurare mai tsayin tsayin tsayin daka, ta yadda karfin ramin ya inganta.