真空甩帶爐的結構有哪些
真(zhen)空甩帶爐的結(jie)構(gou)有哪些
真空甩帶爐采用耐熱鋼(gang)制造的真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)放入電(dian)阻爐(lu)(lu)中,根(gen)據(ju)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)熱處(chu)(chu)理工藝的需(xu)要(yao),配接適(shi)當的真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系統(tong),即成為筒單的真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)熱處(chu)(chu)理爐(lu)(lu)。是由(you)電(dian)阻爐(lu)(lu),真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)硬和真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)悶門(men)、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)計等構成的真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系統(tong)。其熱源在(zai)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)的外(wai)部,也就是電(dian)熱元件設置在(zai)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)的外(wai)部,工件放在(zai)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)的內部,靠間接加(jia)熱。以下(xia)是燒結爐(lu)(lu)的幾種結構:
1.鐘罩式結構
這種(zhong)(zhong)結(jie)構的真(zhen)(zhen)空(kong)缺(que)座落在爐(lu)(lu)(lu)底上,整(zheng)個爐(lu)(lu)(lu)底和真(zhen)(zhen)空(kong)罐可以(yi)借助于電動或液壓傳(chuan)動升降,以(yi)完(wan)成裝出料(liao)操(cao)作并能(neng)縮短冷卻時間。也可以(yi)采(cai)取真(zhen)(zhen)空(kong)罐和爐(lu)(lu)(lu)底固定不動,罩式(shi)爐(lu)(lu)(lu)體升降的方法來完(wan)成進出料(liao)操(cao)作等(deng),但是爐(lu)(lu)(lu)體升降較為復(fu)雜。真(zhen)(zhen)空(kong)甩帶爐(lu)(lu)(lu)廠家建議采(cai)用哪一種(zhong)(zhong)方法,要根據現場實際(ji)情況(kuang)而定。
2.雙真空結構
這(zhe)種結構不僅真(zhen)(zhen)空(kong)罐內部(bu)被抽成真(zhen)(zhen)空(kong),而(er)且真(zhen)(zhen)空(kong)罐外部(bu)的爐(lu)體部(bu)分也被抽成真(zhen)(zhen)空(kong)。這(zhe)樣,就可以減(jian)少真(zhen)(zhen)空(kong)鑲承受(shou)的壓力(li),避免真(zhen)(zhen)空(kong)罐外壁氧化和變(bian)形,延長了真(zhen)(zhen)空(kong)罐的使(shi)用壽命。
在使(shi)用(yong)時還要(yao)(yao)注(zhu)意,真(zhen)(zhen)空(kong)罐(guan)是(shi)真(zhen)(zhen)空(kong)甩(shuai)帶(dai)爐的(de)關鍵性(xing)部件。由于真(zhen)(zhen)空(kong)罐(guan)須在高溫和一個大氣(qi)壓(ya)(ya)的(de)外壓(ya)(ya)條件下(xia)工作,所以,真(zhen)(zhen)空(kong)罐(guan)的(de)材(cai)料(liao)應(ying)具(ju)備良好的(de)熱穩定性(xing)和耐氧化性(xing),間接性(xing)能要(yao)(yao)好,焊縫不易(yi)產生氣(qi)孔(kong)、開裂,保證高溫氣(qi)密性(xing)。材(cai)料(liao)成分中的(de)元(yuan)素蒸氣(qi)壓(ya)(ya)要(yao)(yao)低(di),防止合金(jin)元(yuan)素在高溫、高真(zhen)(zhen)空(kong)下(xia)揮發。
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