亚洲欧美国产日韩字幕,欧美FREE性护士VIDE0SHD,好男人观看免费视频2018,巨乳色呦呦免费,免费观看在线日韩AV片

　　燒紙造紙機網(wang)籠的作(zuo)用(yong)與分類,網(wang)籠是圓網(wang)造紙機中紙幅(fu)在其上(shang)成形的主要部件(jian)。要求它濾水均勻(yun)，轉(zhuan)動時不在網(wang)槽中產(chan)生過(guo)大的攪動。網(wang)籠應具有足夠(gou)的剛度和(he)準確(que)的幾何尺寸，應該水平(ping)安裝。

　　圓網籠(long)按(an)結構分為(wei)(wei)：普通、片式、抽(chou)氣、真空(kong)網籠(long);按(an)材質分為(wei)(wei)：普通、全銅、不銹鋼(gang)網籠(long)。

　　在鑄鐵轉(zhuan)軸上(shang)(shang)裝(zhuang)有(you)(you)稱為輻條(tiao)的(de)(de)(de)(de)黃(huang)銅支撐筋裝(zhuang)置，輻條(tiao)間(jian)距為100-150mm。輻條(tiao)支撐著中心(xin)輪(lun)圈，其周邊刻有(you)(you)槽溝(gou)，槽溝(gou)內裝(zhuang)置長(chang)度和網(wang)(wang)(wang)(wang)籠(long)(long)(long)(long)長(chang)相同(tong)的(de)(de)(de)(de)橫條(tiao)。橫條(tiao)直徑約1cm，中心(xin)距約4cm，與中心(xin)軸平(ping)行。橫條(tiao)用鋼(gang)或黃(huang)銅制(zhi)成(cheng)(cheng)(cheng)，其斷(duan)面(mian)可以是(shi)圓(yuan)形(xing)或長(chang)方形(xing)。最(zui)外(wai)兩側的(de)(de)(de)(de)輪(lun)圈上(shang)(shang)鑄有(you)(you)凸出的(de)(de)(de)(de)輪(lun)環，用以和網(wang)(wang)(wang)(wang)槽相應的(de)(de)(de)(de)部位形(xing)成(cheng)(cheng)(cheng)密封，使網(wang)(wang)(wang)(wang)籠(long)(long)(long)(long)的(de)(de)(de)(de)內外(wai)隔離。在橫條(tiao)上(shang)(shang)按螺旋線(xian)(xian)(xian)銑出鋸(ju)齒形(xing)小(xiao)槽，以一根連續的(de)(de)(de)(de)直徑為3mm左右(you)的(de)(de)(de)(de)金屬線(xian)(xian)(xian)螺旋形(xing)地(di)纏繞在圓(yuan)網(wang)(wang)(wang)(wang)籠(long)(long)(long)(long)上(shang)(shang)，便形(xing)成(cheng)(cheng)(cheng)籠(long)(long)(long)(long)狀的(de)(de)(de)(de)網(wang)(wang)(wang)(wang)籠(long)(long)(long)(long)架。相鄰金屬線(xian)(xian)(xian)的(de)(de)(de)(de)間(jian)隙(xi)約1cm。最(zui)后，在銅線(xian)(xian)(xian)上(shang)(shang)先蒙(meng)上(shang)(shang)一層較(jiao)粗(cu)的(de)(de)(de)(de)黃(huang)銅或不銹鋼(gang)里(li)網(wang)(wang)(wang)(wang)，再蒙(meng)上(shang)(shang)一層造紙用的(de)(de)(de)(de)較(jiao)細的(de)(de)(de)(de)面(mian)網(wang)(wang)(wang)(wang)。里(li)網(wang)(wang)(wang)(wang)和面(mian)網(wang)(wang)(wang)(wang)都是(shi)有(you)(you)端的(de)(de)(de)(de)網(wang)(wang)(wang)(wang)，是(shi)用專(zhuan)用工具繃緊在網(wang)(wang)(wang)(wang)籠(long)(long)(long)(long)架上(shang)(shang)，用銀焊或電焊對接起來的(de)(de)(de)(de)。最(zui)后的(de)(de)(de)(de)總裝(zhuang)必須(xu)十(shi)分圓(yuan)整，并與中心(xin)軸同(tong)心(xin)，其剛度要足以經得住伏輥的(de)(de)(de)(de)壓(ya)力而不變形(xing)。標(biao)準網(wang)(wang)(wang)(wang)籠(long)(long)(long)(long)的(de)(de)(de)(de)直徑范圍約1-1.5m，常用規格是(shi)1.2m。