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真空燒結爐的結構分類
發布時間:2016-08-11   瀏覽:2364次

  真空燒結爐是一種比較常用的(de)窯爐產品,今天洛陽八佳電氣科技股份有(you)限公司的(de)小編就來(lai)跟(gen)大家談談其結構分類。

  按結(jie)(jie)構(gou)劃分的(de)話真空燒結(jie)(jie)爐可(ke)分為立式及臥式兩(liang)種(zhong)系(xi)列(lie),立式系(xi)列(lie)又可(ke)以分為鐘罩升降式的(de)與(yu)底部(bu)托盤(pan)升降式的(de)兩(liang)種(zhong)。臥式系(xi)列(lie)又分單開門(men)的(de)結(jie)(jie)構(gou)與(yu)前后雙開門(men)的(de)結(jie)(jie)構(gou)兩(liang)種(zhong)。但(dan)不管是哪種(zhong)結(jie)(jie)構(gou)其爐體均(jun)采用水冷夾(jia)壁(bi)結(jie)(jie)構(gou)。

  不(bu)同(tong)結(jie)構的(de)真空(kong)燒結(jie)爐適用于不(bu)同(tong)的(de)環(huan)境,具體選擇要取決于用戶的(de)工(gong)藝條件和對工(gong)藝環(huan)境的(de)要求。

  以真空速凝爐和真空燒結爐為主要產品的洛(luo)陽八(ba)佳電氣科技股份(fen)有限公司是集(ji)研制(zhi)、開(kai)發、生產、銷售為一體的高(gao)溫熱處(chu)理爐的***廠家,歡(huan)迎有需要的廣大顧客前來選(xuan)購(gou)!

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17 May 2018
真空甩帶爐各組成裝置的性能介紹

真空甩帶爐各組成裝置的性能介紹

  真(zhen)(zhen)(zhen)(zhen)空(kong)甩(shuai)(shuai)(shuai)(shuai)帶(dai)爐(lu)(lu)(lu)各(ge)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)性(xing)能(neng)介紹(shao)(shao):八佳電(dian)(dian)(dian)氣(qi)生產的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)甩(shuai)(shuai)(shuai)(shuai)帶(dai)爐(lu)(lu)(lu)采(cai)用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)是(shi)臥式(shi)爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti),側部(bu)開門(men)(men)結(jie)構(gou)(gou),進出料(liao)方便,爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti)結(jie)構(gou)(gou)緊湊,占地(di)空(kong)間較小(xiao),采(cai)用(yong)(yong)(yong)高頻(pin)電(dian)(dian)(dian)源加(jia)(jia)熱(re)(re),主要供(gong)大(da)專院(yuan)校及科研(yan)單位(wei)等(deng)(deng)在真(zhen)(zhen)(zhen)(zhen)空(kong)或(huo)保(bao)(bao)護(hu)氣(qi)氛(fen)條件下(xia)(xia)對(dui)金屬材料(liao)(如不(bu)銹鋼、鎳基合金、銅(tong)(tong)、合金鋼、鎳鈷合金、稀土釹鐵(tie)錋(peng)等(deng)(deng))的(de)(de)(de)(de)(de)(de)(de)熔煉澆鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)處理(li)(li),也可(ke)進行合金鋼的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)精煉處理(li)(li)及精密(mi)(mi)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)造。還(huan)可(ke)進行非晶(jing)甩(shuai)(shuai)(shuai)(shuai)帶(dai),噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)和(he)(he)壓(ya)(ya)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)處理(li)(li),一(yi)(yi)(yi)臺(tai)(tai)設(she)(she)備,多(duo)種功(gong)(gong)能(neng)。   隨然,真(zhen)(zhen)(zhen)(zhen)空(kong)甩(shuai)(shuai)(shuai)(shuai)帶(dai)爐(lu)(lu)(lu)看起來并(bing)不(bu)大(da),但其結(jie)構(gou)(gou)也是(shi)相對(dui)復雜的(de)(de)(de)(de)(de)(de)(de),主要有(you)真(zhen)(zhen)(zhen)(zhen)空(kong)腔體(ti)(ti)(ti)(ti)(ti)、熔煉裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)、噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)、甩(shuai)(shuai)(shuai)(shuai)帶(dai)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)、壓(ya)(ya)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)、模具預(yu)(yu)熱(re)(re)系(xi)統、抽(chou)真(zhen)(zhen)(zhen)(zhen)空(kong)系(xi)統、爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti)支(zhi)(zhi)(zhi)架、電(dian)(dian)(dian)氣(qi)控制(zhi)(zhi)系(xi)統及水(shui)(shui)(shui)(shui)(shui)冷(leng)(leng)(leng)卻(que)系(xi)統組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng)。   1、真(zhen)(zhen)(zhen)(zhen)空(kong)腔體(ti)(ti)(ti)(ti)(ti):由(you)(you)爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti)、爐(lu)(lu)(lu)蓋和(he)(he)爐(lu)(lu)(lu)底(di)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng);爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti)由(you)(you)不(bu)銹鋼法蘭和(he)(he)內(nei)外(wai)筒(tong)體(ti)(ti)(ti)(ti)(ti)組(zu)(zu)(zu)焊而(er)(er)成(cheng)(cheng)(cheng)(cheng),內(nei)壁鏡面拋光(guang),爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti)上開設(she)(she)有(you)壓(ya)(ya)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)接(jie)口(kou)、噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)接(jie)口(kou)、旋轉電(dian)(dian)(dian)極(ji)接(jie)口(kou)、甩(shuai)(shuai)(shuai)(shuai)帶(dai)收集(ji)管(guan)、紅外(wai)測(ce)溫接(jie)口(kou)、模具預(yu)(yu)熱(re)(re)電(dian)(dian)(dian)源電(dian)(dian)(dian)極(ji)引入接(jie)口(kou);真(zhen)(zhen)(zhen)(zhen)空(kong)甩(shuai)(shuai)(shuai)(shuai)帶(dai)爐(lu)(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)爐(lu)(lu)(lu)蓋由(you)(you)整(zheng)體(ti)(ti)(ti)(ti)(ti)實(shi)心(xin)加(jia)(jia)工而(er)(er)成(cheng)(cheng)(cheng)(cheng),上面開設(she)(she)有(you)大(da)直徑觀(guan)察窗,可(ke)直觀(guan)的(de)(de)(de)(de)(de)(de)(de)觀(guan)測(ce)到(dao)爐(lu)(lu)(lu)內(nei)的(de)(de)(de)(de)(de)(de)(de)各(ge)種實(shi)驗情況;爐(lu)(lu)(lu)底(di)也是(shi)由(you)(you)整(zheng)體(ti)(ti)(ti)(ti)(ti)實(shi)心(xin)加(jia)(jia)工而(er)(er)成(cheng)(cheng)(cheng)(cheng),固(gu)定(ding)有(you)甩(shuai)(shuai)(shuai)(shuai)帶(dai)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)。整(zheng)體(ti)(ti)(ti)(ti)(ti)外(wai)觀(guan)啞光(guang)處理(li)(li),整(zheng)潔大(da)方。   2、熔煉裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi):由(you)(you) 超音頻(pin)電(dian)(dian)(dian)源、水(shui)(shui)(shui)(shui)(shui)冷(leng)(leng)(leng)電(dian)(dian)(dian)纜、旋轉電(dian)(dian)(dian)極(ji)、線圈(quan)(quan)、保(bao)(bao)溫套(tao)和(he)(he)坩堝組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng),通(tong)過(guo)更換(huan)線圈(quan)(quan)、保(bao)(bao)溫套(tao)和(he)(he)坩堝實(shi)現(xian)(xian)不(bu)同容量。真(zhen)(zhen)(zhen)(zhen)空(kong)甩(shuai)(shuai)(shuai)(shuai)帶(dai)爐(lu)(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)高溫溫度(du)可(ke)加(jia)(jia)熱(re)(re)至(zhi)1700℃。(容量按照(zhao)50g,200g,500g,1000g來配(pei)),熔煉完(wan)成(cheng)(cheng)(cheng)(cheng)后(hou)可(ke)通(tong)過(guo)手動傾倒到(dao)模具內(nei)。   3、噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi):由(you)(you)氣(qi)缸、石(shi)英管(guan)、時間繼電(dian)(dian)(dian)器(qi)、氣(qi)源恒定(ding)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)等(deng)(deng)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng),可(ke)實(shi)現(xian)(xian)小(xiao)容量溶(rong)(rong)液(ye)(ye)(ye)的(de)(de)(de)(de)(de)(de)(de)噴(pen)(pen)(pen)帶(dai)和(he)(he)噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)。(噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)配(pei)石(shi)英管(guan),容量50g)   4、甩(shuai)(shuai)(shuai)(shuai)帶(dai)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi):真(zhen)(zhen)(zhen)(zhen)空(kong)甩(shuai)(shuai)(shuai)(shuai)帶(dai)爐(lu)(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)甩(shuai)(shuai)(shuai)(shuai)帶(dai)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)由(you)(you)噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)、高速(su)調(diao)速(su)電(dian)(dian)(dian)機(ji)(ji)、磁流體(ti)(ti)(ti)(ti)(ti)密(mi)(mi)封(feng)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)和(he)(he)銅(tong)(tong)棍等(deng)(deng)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng),可(ke)通(tong)過(guo)調(diao)節(jie)電(dian)(dian)(dian)機(ji)(ji)速(su)度(du),實(shi)現(xian)(xian)不(bu)同銅(tong)(tong)棍線速(su)度(du)。   5、壓(ya)(ya)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi):由(you)(you)特殊加(jia)(jia)壓(ya)(ya)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)、壓(ya)(ya)架、底(di)座(zuo)、壓(ya)(ya)頭(tou)和(he)(he)母(mu)(mu)模等(deng)(deng)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng),當(dang)溶(rong)(rong)液(ye)(ye)(ye)澆鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)或(huo)者噴(pen)(pen)(pen)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)到(dao)母(mu)(mu)模內(nei),啟動加(jia)(jia)壓(ya)(ya)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)(zhi)對(dui)工件加(jia)(jia)壓(ya)(ya),提高其致(zhi)密(mi)(mi)性(xing)。壓(ya)(ya)鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)底(di)部(bu)壓(ya)(ya)頭(tou)有(you)定(ding)位(wei)槽,保(bao)(bao)證上下(xia)(xia)壓(ya)(ya)頭(tou)同心(xin)度(du);底(di)部(bu)壓(ya)(ya)頭(tou)可(ke)調(diao)節(jie)高度(du);整(zheng)套(tao)壓(ya)(ya)力架支(zhi)(zhi)(zhi)撐在地(di)上。相對(dui)人性(xing)化的(de)(de)(de)(de)(de)(de)(de)設(she)(she)計是(shi)在爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti)底(di)部(bu)有(you)防漏盤,防止熔液(ye)(ye)(ye)損壞真(zhen)(zhen)(zhen)(zhen)空(kong)腔體(ti)(ti)(ti)(ti)(ti)。   6、模具預(yu)(yu)熱(re)(re)系(xi)統:為防止澆鑄(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)到(dao)母(mu)(mu)模內(nei)的(de)(de)(de)(de)(de)(de)(de)溶(rong)(rong)液(ye)(ye)(ye)冷(leng)(leng)(leng)卻(que)過(guo)快,特在母(mu)(mu)模外(wai)部(bu)加(jia)(jia)裝(zhuang)(zhuang)(zhuang)感應(ying)線圈(quan)(quan)預(yu)(yu)熱(re)(re),由(you)(you)一(yi)(yi)(yi)臺(tai)(tai)7.5Kw IGBT超音頻(pin)電(dian)(dian)(dian)源、水(shui)(shui)(shui)(shui)(shui)冷(leng)(leng)(leng)銅(tong)(tong)接(jie)頭(tou)和(he)(he)線圈(quan)(quan)等(deng)(deng)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng),如果(guo)不(bu)用(yong)(yong)(yong)預(yu)(yu)熱(re)(re),也可(ke)取(qu)下(xia)(xia)感應(ying)線圈(quan)(quan),用(yong)(yong)(yong)悶頭(tou)密(mi)(mi)封(feng)。預(yu)(yu)留有(you)兩路進出水(shui)(shui)(shui)(shui)(shui),水(shui)(shui)(shui)(shui)(shui)流量可(ke)通(tong)過(guo)流量計來控制(zhi)(zhi)(專門(men)(men)用(yong)(yong)(yong)于(yu)水(shui)(shui)(shui)(shui)(shui)冷(leng)(leng)(leng)銅(tong)(tong)模)。   7、抽(chou)真(zhen)(zhen)(zhen)(zhen)空(kong)系(xi)統:至(zhi)于(yu)抽(chou)真(zhen)(zhen)(zhen)(zhen)空(kong)部(bu)分(fen)是(shi)由(you)(you)一(yi)(yi)(yi)臺(tai)(tai)擴散泵(beng)、一(yi)(yi)(yi)臺(tai)(tai)雙極(ji)直聯泵(beng)、三臺(tai)(tai)氣(qi)動擋(dang)板閥(fa)、真(zhen)(zhen)(zhen)(zhen)空(kong)管(guan)路和(he)(he)真(zhen)(zhen)(zhen)(zhen)空(kong)計等(deng)(deng)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng),冷(leng)(leng)(leng)態極(ji)限真(zhen)(zhen)(zhen)(zhen)空(kong)度(du)優于(yu)6.67×10E-3Pa。   8、爐(lu)(lu)(lu)體(ti)(ti)(ti)(ti)(ti)支(zhi)(zhi)(zhi)架:由(you)(you)型材和(he)(he)鋼板拼裝(zhuang)(zhuang)(zhuang)而(er)(er)成(cheng)(cheng)(cheng)(cheng),門(men)(men)板全部(bu)采(cai)用(yong)(yong)(yong)數控加(jia)(jia)工,尺(chi)寸精度(du)高,外(wai)表噴(pen)(pen)(pen)塑處理(li)(li),整(zheng)體(ti)(ti)(ti)(ti)(ti)布局合理(li)(li),顏色(se)搭配(pei)美觀(guan)。和(he)(he)電(dian)(dian)(dian)控柜采(cai)用(yong)(yong)(yong)一(yi)(yi)(yi)體(ti)(ti)(ti)(ti)(ti)結(jie)構(gou)(gou)。   9、電(dian)(dian)(dian)氣(qi)控制(zhi)(zhi)系(xi)統:各(ge)種電(dian)(dian)(dian)氣(qi)元(yuan)器(qi)件采(cai)用(yong)(yong)(yong)國際(ji)知名(ming)品牌,按照(zhao)行業(ye)標準(zhun)制(zhi)(zhi)作而(er)(er)成(cheng)(cheng)(cheng)(cheng)。面板采(cai)用(yong)(yong)(yong)模擬屏(ping),可(ke)直觀(guan)控制(zhi)(zhi)設(she)(she)備的(de)(de)(de)(de)(de)(de)(de)各(ge)部(bu)件,并(bing)有(you)水(shui)(shui)(shui)(shui)(shui)欠壓(ya)(ya)、斷水(shui)(shui)(shui)(shui)(shui)聲光(guang)報(bao)警并(bing)自動切斷加(jia)(jia)熱(re)(re)功(gong)(gong)能(neng)。   10、水(shui)(shui)(shui)(shui)(shui)冷(leng)(leng)(leng)卻(que)系(xi)統:真(zhen)(zhen)(zhen)(zhen)空(kong)燒結(jie)爐(lu)(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)冷(leng)(leng)(leng)卻(que)系(xi)統由(you)(you)水(shui)(shui)(shui)(shui)(shui)冷(leng)(leng)(leng)機(ji)(ji)、各(ge)種閥(fa)門(men)(men)和(he)(he)水(shui)(shui)(shui)(shui)(shui)管(guan)等(deng)(deng)組(zu)(zu)(zu)成(cheng)(cheng)(cheng)(cheng),帶(dai)有(you)電(dian)(dian)(dian)接(jie)點水(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)表,具有(you)超壓(ya)(ya)、欠壓(ya)(ya)報(bao)警功(gong)(gong)能(neng)。   通(tong)過(guo)八佳電(dian)(dian)(dian)氣(qi)科技的(de)(de)(de)(de)(de)(de)(de)小(xiao)編分(fen)解式(shi)的(de)(de)(de)(de)(de)(de)(de)介紹(shao)(shao),想必大(da)家應(ying)該有(you)所了(le)解了(le)。如有(you)深層(ceng)了(le)解,歡迎咨詢我們。

14 September 2017
真空燒結爐保持真空的方式有哪些?

真空燒結爐保持真空的方式有哪些?

  真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)燒(shao)結(jie)爐(lu)在進(jin)行燒(shao)結(jie)時(shi),需(xu)要(yao)(yao)滿足很多生(sheng)產(chan)條件,其中(zhong)保持真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)就是重要(yao)(yao)的(de)(de)一個燒(shao)結(jie)條件。下(xia)面,小編就來給大(da)家(jia)簡(jian)單介(jie)紹一下(xia)燒(shao)結(jie)爐(lu)有哪些(xie)保持真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)的(de)(de)方式。   首先,沸騰(teng)法(fa)(fa)。將(jiang)清潔(jie)水(shui)加入真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)燒(shao)結(jie)爐(lu)內,到(dao)達一定水(shui)位,除排(pai)氣(qi)閥(fa)(fa)(fa)外,關閉(bi)所有閥(fa)(fa)(fa)門,起爐(lu)升(sheng)溫(wen)(wen)至(zhi)熱媒(mei)水(shui)工作壓力下(xia)的(de)(de)飽和溫(wen)(wen)度,當將(jiang)溶(rong)解于工質內的(de)(de)空(kong)(kong)(kong)(kong)(kong)氣(qi)全部(bu)排(pai)出(chu)后,關閉(bi)排(pai)氣(qi)閥(fa)(fa)(fa),形成(cheng)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)狀(zhuang)態。   其次(ci),溫(wen)(wen)差(cha)自動抽(chou)氣(qi)。抽(chou)氣(qi)形成(cheng)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong),與外部(bu)隔絕,成(cheng)密閉(bi)狀(zhuang)態。真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)燒(shao)結(jie)爐(lu)內部(bu)產(chan)生(sheng)不凝性氣(qi)體,運行當中(zhong),不凝性氣(qi)體在集氣(qi)罐(guan)(guan)中(zhong)逐漸聚集,集氣(qi)罐(guan)(guan)的(de)(de)溫(wen)(wen)度慢(man)慢(man)降低。當不凝性氣(qi)體被(bei)抽(chou)走后,負壓蒸汽到(dao)達集氣(qi)罐(guan)(guan),集氣(qi)罐(guan)(guan)溫(wen)(wen)度上(shang)(shang)升(sheng),溫(wen)(wen)差(cha)變小。   *,機械調節。原理與沸騰(teng)法(fa)(fa)相似,不同在于鍋(guo)爐(lu)內部(bu)達到(dao)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)閥(fa)(fa)(fa)設(she)定的(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)度時(shi),產(chan)生(sheng)的(de)(de)負壓,將(jiang)拉住閥(fa)(fa)(fa)芯(xin),保持真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)度。當真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)被(bei)破壞,產(chan)生(sheng)的(de)(de)負壓達不到(dao)設(she)定真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)度時(shi),真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)閥(fa)(fa)(fa)閥(fa)(fa)(fa)芯(xin)將(jiang)上(shang)(shang)彈,排(pai)除不冷凝氣(qi)體,直到(dao)達到(dao)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)閥(fa)(fa)(fa)設(she)定值時(shi),閥(fa)(fa)(fa)芯(xin)再次(ci)被(bei)拉回(hui),保持爐(lu)內真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)。