真空釬焊爐是熱處理的大型設備，能夠進行真空釬焊、真空退火、真空時效等多種加工。可編多個不同程序，能控制和編入上百個熱處理曲線點，分上、下、左右、前后六區控溫，有多點和單點溫度記錄儀以及過溫保護裝置，爐溫均勻性可控制在恒定溫度范圍以內，另配有高純氮高流量強冷裝置。

　　設備真空系(xi)統主要(yao)由真空室、泵(beng)(beng)(beng)系(xi)統和(he)(he)各控(kong)制(zhi)閥(fa)(fa)及熱(re)交換器組成(cheng)。其中泵(beng)(beng)(beng)系(xi)統由機械(xie)泵(beng)(beng)(beng)、維持泵(beng)(beng)(beng)、羅(luo)茨泵(beng)(beng)(beng)、擴散泵(beng)(beng)(beng)等構成(cheng)。閥(fa)(fa)門包括前級閥(fa)(fa)（碟(die)閥(fa)(fa)）、旁路閥(fa)(fa)（碟(die)閥(fa)(fa)）、維持泵(beng)(beng)(beng)閥(fa)(fa)（碟(die)閥(fa)(fa)）和(he)(he)高閥(fa)(fa)（板閥(fa)(fa)）組成(cheng)，各閥(fa)(fa)門均為氣動(dong)閥(fa)(fa)，由PLC控(kong)制(zhi)氣動(dong)閥(fa)(fa)進(jin)行控(kong)制(zhi)。加熱(re)室主要(yao)由不銹鋼加熱(re)室殼體、不銹鋼反射(she)屏、加熱(re)器、陶瓷絕緣件、水冷電(dian)極、爐床等組成(cheng)。

　　真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)釬焊(han)爐(lu)運(yun)行(xing)(xing)時(shi)，首先啟動(dong)機械泵(beng)、維(wei)持(chi)泵(beng)和(he)(he)擴(kuo)(kuo)散泵(beng)（加(jia)(jia)熱(re)(re)），同時(shi)打開前(qian)級(ji)(ji)閥(fa)和(he)(he)維(wei)持(chi)泵(beng)閥(fa)，對(dui)擴(kuo)(kuo)散泵(beng)內進(jin)(jin)行(xing)(xing)抽真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)。當真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du)(du)達(da)到系統(tong)某一(yi)設定值時(shi)，羅茨泵(beng)啟動(dong)，同時(shi)旁路(lu)閥(fa)打開，前(qian)級(ji)(ji)閥(fa)關閉(bi)，此時(shi)對(dui)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室進(jin)(jin)行(xing)(xing)抽低真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)當擴(kuo)(kuo)散泵(beng)加(jia)(jia)熱(re)(re)至(zhi)規定溫度(du)(du)并且(qie)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du)(du)高于規定值時(shi)，高閥(fa)打開，旁路(lu)閥(fa)關閉(bi)，前(qian)級(ji)(ji)閥(fa)打開。此時(shi)對(dui)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室抽高真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)，達(da)到工(gong)(gong)藝(yi)要求(qiu)的真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du)(du)以后，方可進(jin)(jin)行(xing)(xing)熱(re)(re)處理(li)工(gong)(gong)作。熱(re)(re)加(jia)(jia)工(gong)(gong)過程(cheng)完(wan)成后，由熱(re)(re)交(jiao)換(huan)器對(dui)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室充入(ru)高純氮氣進(jin)(jin)行(xing)(xing)強(qiang)制冷卻，完(wan)成整(zheng)個工(gong)(gong)藝(yi)過程(cheng)。