ZGXF系列真空感應懸浮熔煉爐
真空懸浮熔煉爐是(shi)(shi)(shi)用(yong)(yong)水(shui)(shui)冷(leng)坩(gan)(gan)堝(guo)電(dian)磁(ci)感應(ying)(ying)真空(kong)懸(xuan)浮(fu)熔(rong)(rong)(rong)煉(lian)(lian)方(fang)法,是(shi)(shi)(shi)在(zai)真空(kong)條件下(xia)將所(suo)熔(rong)(rong)(rong)煉(lian)(lian)的(de)(de)(de)(de)金(jin)(jin)屬(shu)(shu)或(huo)非金(jin)(jin)屬(shu)(shu)固體爐(lu)料(liao)(liao),置于感應(ying)(ying)線圈(quan)所(suo)形(xing)成的(de)(de)(de)(de)高頻(pin)或(huo)中(zhong)頻(pin)交變電(dian)場(chang)中(zhong),并利用(yong)(yong)通(tong)水(shui)(shui)冷(leng)卻的(de)(de)(de)(de)金(jin)(jin)屬(shu)(shu)坩(gan)(gan)堝(guo)作為(wei)(wei)磁(ci)場(chang)的(de)(de)(de)(de)“聚能(neng)器”,使(shi)能(neng)源磁(ci)場(chang)能(neng)量集中(zhong)于坩(gan)(gan)堝(guo)容(rong)積空(kong)間,進而在(zai)爐(lu)料(liao)(liao)的(de)(de)(de)(de)表層附近形(xing)成強大(da)的(de)(de)(de)(de)渦電(dian)流,一(yi)(yi)方(fang)面釋放出(chu)焦耳熱(re)使(shi)爐(lu)料(liao)(liao)溶(rong)(rong)化,另一(yi)(yi)方(fang)面形(xing)成洛(luo)侖(lun)茲力(li)場(chang)使(shi)熔(rong)(rong)(rong)體懸(xuan)浮(fu)(或(huo)半懸(xuan)浮(fu))和(he)攪(jiao)拌。由(you)于磁(ci)懸(xuan)浮(fu)的(de)(de)(de)(de)作用(yong)(yong),使(shi)熔(rong)(rong)(rong)體與(yu)(yu)坩(gan)(gan)堝(guo)內壁(bi)脫離(li)(li)接觸,這(zhe)樣熔(rong)(rong)(rong)體與(yu)(yu)坩(gan)(gan)堝(guo)壁(bi)之間的(de)(de)(de)(de)散(san)熱(re)行為(wei)(wei)由(you)傳導(dao)散(san)熱(re)改變為(wei)(wei)輻射散(san)熱(re),從而導(dao)致散(san)熱(re)速(su)度(du)聚減。使(shi)熔(rong)(rong)(rong)體可達到很高的(de)(de)(de)(de)溫(wen)度(du),(1700℃—2000℃)宜于熔(rong)(rong)(rong)煉(lian)(lian)高熔(rong)(rong)(rong)點金(jin)(jin)屬(shu)(shu)或(huo)其合金(jin)(jin)。更重(zhong)要的(de)(de)(de)(de)方(fang)面是(shi)(shi)(shi):熔(rong)(rong)(rong)煉(lian)(lian)時(shi)(shi)爐(lu)料(liao)(liao)的(de)(de)(de)(de)懸(xuan)浮(fu)將有(you)效防止爐(lu)料(liao)(liao)與(yu)(yu)坩(gan)(gan)堝(guo)壁(bi)接觸所(suo)帶來(lai)的(de)(de)(de)(de)污(wu)染。宜于獲得(de)高純度(du)或(huo)極活潑(po)的(de)(de)(de)(de)金(jin)(jin)屬(shu)(shu)與(yu)(yu)非金(jin)(jin)屬(shu)(shu)材料(liao)(liao)。再(zai)者,水(shui)(shui)冷(leng)坩(gan)(gan)堝(guo)是(shi)(shi)(shi)通(tong)過感應(ying)(ying)線圈(quan)的(de)(de)(de)(de)中(zhong)頻(pin)或(huo)高頻(pin)電(dian)流來(lai)控制熔(rong)(rong)(rong)體的(de)(de)(de)(de)升溫(wen)和(he)懸(xuan)浮(fu),因而有(you)可能(neng)實現很好的(de)(de)(de)(de)控制能(neng)力(li),同時(shi)(shi)感應(ying)(ying)加(jia)熱(re)方(fang)法本身(shen)就是(shi)(shi)(shi)一(yi)(yi)種非接觸的(de)(de)(de)(de)加(jia)熱(re)方(fang)式(shi),避免了用(yong)(yong)等(deng)離(li)(li)子束(shu)、電(dian)子束(shu)等(deng)加(jia)熱(re)方(fang)法給(gei)坩(gan)(gan)堝(guo)和(he)金(jin)(jin)屬(shu)(shu)溶(rong)(rong)液帶來(lai)的(de)(de)(de)(de)沖擊與(yu)(yu)揮發(fa)。這(zhe)方(fang)面水(shui)(shui)冷(leng)坩(gan)(gan)堝(guo)感應(ying)(ying)熔(rong)(rong)(rong)煉(lian)(lian)方(fang)法有(you)著特殊的(de)(de)(de)(de)意義。
ZGXF—0.5 | ZGXF--2 | ZGXF--5 | ZGXF--10 | ZGXF--15 | ZGXF--20 | |
坩堝容量KG | 0.5 | 2 | 5 | 10 | 15 | 20 |
中頻功率KW | 65 | 160 | 250 | 350 | 400 | 500 |
中頻頻率KHz | 20 | 8 | 8 | 8 | 8 | 8 |
中頻電壓V | 250 | 250 | 400 | 400 | 500 | |
極限真空Pa | 6.6x10-1 | 6.6x10-3 | 6.6x10-3 | 6.6x10-3 | 6.6x10-3 | 6.6x10-3 |
工作真空Pa | 4 | 6.6x10-2 | 6.6x10-2 | 6.6x10-2 | 6.6x10-2 | 6.6x10-2 |
真空壓升率Pa | 3pa/h | |||||
冷卻水壓MPa | 爐體及電源部分0.2-0.3MPa 水冷(leng)銅坩堝部分(fen)0.4-0.5MPa | |||||
冷卻水量M3 | 3 | 25 | 30 | 35 | 40 | 45 |
設備質量t | 1 | 3.5 | 4.5 | 5 | 5 | 5.5 |
設備占地 | 1x2 | 3x4 | 3x4.5 | 3.5x5 | 3.5x5 | 3.5x5 |