盲板

盲板(ban)(ban)(ban)(ban)：法蘭(lan)(lan)盲板(ban)(ban)(ban)(ban)，亦稱盲法蘭(lan)(lan)，實名叫(jiao)盲板(ban)(ban)(ban)(ban)。是(shi)(shi)(shi)法蘭(lan)(lan)的(de)一種(zhong)連接(jie)形式(shi)(shi)。盲板(ban)(ban)(ban)(ban)是(shi)(shi)(shi)中間不帶(dai)孔的(de)法蘭(lan)(lan)，供封(feng)(feng)(feng)住管(guan)道堵(du)頭用。密封(feng)(feng)(feng)面的(de)形式(shi)(shi)種(zhong)類(lei)較多(duo)，有平面、凸面、凹(ao)凸面、榫槽面、環(huan)連接(jie)面。其(qi)功能之一是(shi)(shi)(shi)封(feng)(feng)(feng)堵(du)住管(guan)道的(de)末端(duan)，其(qi)二是(shi)(shi)(shi)有可以(yi)在(zai)檢(jian)修時方(fang)便清除(chu)管(guan)道中的(de)雜物的(de)作用。就封(feng)(feng)(feng)堵(du)作用而(er)言，與封(feng)(feng)(feng)頭和管(guan)帽有相同的(de)作用。但是(shi)(shi)(shi)封(feng)(feng)(feng)頭是(shi)(shi)(shi)沒有辦(ban)法拆卸(xie)的(de)，而(er)法蘭(lan)(lan)盲板(ban)(ban)(ban)(ban)是(shi)(shi)(shi)用螺栓固定的(de)，很方(fang)便的(de)拆卸(xie)的(de)。法蘭(lan)(lan)盲板(ban)(ban)(ban)(ban)材質有碳鋼(gang)的(de)，合金鋼(gang) ...