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石墨化爐的主要原理是什么呢
發布時間:2021-11-01   瀏覽:8446次

  石墨化爐的主要原(yuan)理是什么(me)呢

  石墨化爐是在抽真(zhen)空后(hou)充氫氣(qi)保護(hu)狀態(tai)下,利用中頻感(gan)應加(jia)熱的(de)原理,使處(chu)于線圈(quan)內(nei)的(de)鎢坩堝產生高溫,通過熱輻(fu)射傳導到工作上,適(shi)用于科研單位對難熔物體成型(xing)燒結。

石墨化爐

  石墨化爐結構(gou)形(xing)式多為立(li)式、下出(chu)料方式。其(qi)主要組成(cheng)為:電(dian)爐本體、真空系(xi)(xi)統(tong)(tong)、水冷系(xi)(xi)統(tong)(tong)、氣動系(xi)(xi)統(tong)(tong)、液(ye)壓系(xi)(xi)統(tong)(tong)、進出(chu)料機構(gou)、底座(zuo)、工作臺、感應(ying)加(jia)熱裝置(zhi)、進電(dian)裝置(zhi)、中頻電(dian)源及電(dian)氣控制系(xi)(xi)統(tong)(tong)等。

  石墨化爐的主要功能是在抽(chou)真空后充入(ru)氫(qing)氣(qi)保(bao)護氣(qi)體,控制(zhi)爐內壓力(li)和氣(qi)氛(fen)的燒結狀態。可用光導纖(xian)維紅外輻(fu)射(she)溫(wen)(wen)度(du)計和鎧裝熱電偶連續(xu)測溫(wen)(wen)(0~2500℃),并(bing)通過智(zhi)能控溫(wen)(wen)儀與設定程(cheng)序相比較后,選擇(ze)執行狀態反饋給中頻電源(yuan),自動控制(zhi)溫(wen)(wen)度(du)的高(gao)低及保(bao)溫(wen)(wen)程(cheng)序。

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