亚洲人成网站在线播放大全_国产高清亚洲精品视bt天堂频_99re 久久这里只有精品6_久久亚洲精品成人无码网站蜜桃_无码人与动欧交视频a片_亚洲色婷婷爱婷婷综合精品_日本无码人妻精品一区二区视频_日韩精品无码免费专区网站_亚洲成a人片77777国产_国产精品色情国产三级金瓶双艳

 真(zhen)(zhen)空(kong)(kong)(kong)爐(lu)(lu)(lu)(lu)(lu)一般由爐(lu)(lu)(lu)(lu)(lu)膛(tang)(tang)、電(dian)熱(re)裝(zhuang)置、密(mi)(mi)封(feng)爐(lu)(lu)(lu)(lu)(lu)殼(ke)、真(zhen)(zhen)空(kong)(kong)(kong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)、供(gong)電(dian)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)和(he)控溫系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)等(deng)組(zu)(zu)成。密(mi)(mi)封(feng)爐(lu)(lu)(lu)(lu)(lu)殼(ke)用碳鋼或不銹鋼焊(han)成，可拆卸部件的(de)接合面用真(zhen)(zhen)空(kong)(kong)(kong)密(mi)(mi)封(feng)材(cai)料(liao)密(mi)(mi)封(feng)。為防止(zhi)爐(lu)(lu)(lu)(lu)(lu)殼(ke)受熱(re)后變(bian)(bian)形和(he)密(mi)(mi)封(feng)材(cai)料(liao)受熱(re)變(bian)(bian)質，爐(lu)(lu)(lu)(lu)(lu)殼(ke)一般用水冷或氣冷降溫。爐(lu)(lu)(lu)(lu)(lu)膛(tang)(tang)位于(yu)密(mi)(mi)封(feng)爐(lu)(lu)(lu)(lu)(lu)殼(ke)內(nei)。根據(ju)爐(lu)(lu)(lu)(lu)(lu)子用途,爐(lu)(lu)(lu)(lu)(lu)膛(tang)(tang)內(nei)部裝(zhuang)有(you)不同類型的(de)加熱(re)元件，如電(dian)阻、感應(ying)線(xian)圈(quan)、電(dian)極和(he)電(dian)子槍等(deng)。熔煉金屬(shu)的(de)真(zhen)(zhen)空(kong)(kong)(kong)爐(lu)(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)(lu)膛(tang)(tang)內(nei)裝(zhuang)有(you)坩堝，有(you)的(de)還裝(zhuang)有(you)自動澆注裝(zhuang)置和(he)裝(zhuang)卸料(liao)的(de)機(ji)(ji)械(xie)手等(deng)。真(zhen)(zhen)空(kong)(kong)(kong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)主要由真(zhen)(zhen)空(kong)(kong)(kong)泵、真(zhen)(zhen)空(kong)(kong)(kong)閥門(men)和(he)真(zhen)(zhen)空(kong)(kong)(kong)計等(deng)組(zu)(zu)成。真(zhen)(zhen)空(kong)(kong)(kong)爐(lu)(lu)(lu)(lu)(lu)是由主機(ji)(ji)、真(zhen)(zhen)空(kong)(kong)(kong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)、加熱(re)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)、水冷系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)、氣動系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)、電(dian)控系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)和(he)爐(lu)(lu)(lu)(lu)(lu)外運輸車等(deng)組(zu)(zu)成。