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石墨加熱棒在真空燒結爐中的優勢
發布時間:2022-09-22   瀏覽:7228次

  石(shi)墨(mo)加(jia)熱棒在真(zhen)空燒(shao)結爐中的優勢

  真空燒結爐的石墨(mo)棒(bang)加熱元(yuan)件:石墨(mo)膨脹小、熱沖擊性強(qiang),在一定溫(wen)(wen)度(du)范圍內(nei),燒結爐的溫(wen)(wen)度(du)愈高,機械(xie)性能(neng)愈好(hao)。加工性良好(hao),價格低(di)廉,給點(dian)髙(gao)(3700P),在燒結爐真空條件下具有高升華點(dian)和低(di)蒸氣壓,在相(xiang)同溫(wen)(wen)度(du)下能(neng)夠輻射(she)(she)比其(qi)它(ta)材料更多的能(neng)量(liang),例如(ru)比鑰熱輻射(she)(she)強(qiang)。

真空燒結爐

  同時石墨(mo)(mo)又是很(hen)好的脫(tuo)氧理,石墨(mo)(mo)與金屬氧化(hua)物作用(yong)生成一氧化(hua)碳(tan),一氧化(hua)碳(tan)不斷被泵抽走,對真空(kong)是起凈化(hua)作用(yong),但(dan)石墨(mo)(mo)消耗(hao)很(hen)大,壽命只有1萬小時。真空(kong)燒結爐的石墨(mo)(mo)加熱(re)元(yuan)件不會對零件產生滲碳(tan)的不利影響。

  真空(kong)燒結(jie)(jie)爐維修方便,石(shi)墨棒(bang)加熱(re)元件(jian)可單件(jian)從(cong)燒結(jie)(jie)爐爐室直接更(geng)換,整體加熱(re)室可用托架移出燒結(jie)(jie)爐真空(kong)室外,進行修理。

  真空(kong)燒結爐爐子工作原理:用受控的(de)交流低壓(ya)大電流加在三相加熱(re)(re)的(de)12根石(shi)墨(mo)棒加熱(re)(re)元件上,以石(shi)墨(mo)產生的(de)熱(re)(re)量。


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