一、不銹鋼三通是什么
不銹鋼三通為(wei)管件(jian)、管道連接(jie)件(jian)。用在主(zhu)(zhu)管道要分(fen)支(zhi)管處。不(bu)銹鋼三通有等徑(jing)和異徑(jing)之分(fen),等徑(jing)三通的(de)(de)接(jie)管端部均為(wei)相(xiang)同的(de)(de)尺(chi)寸;異徑(jing)的(de)(de)三通的(de)(de)主(zhu)(zhu)管接(jie)管尺(chi)寸相(xiang)同,而支(zhi)管的(de)(de)接(jie)管尺(chi)寸小于(yu)主(zhu)(zhu)管的(de)(de)接(jie)管尺(chi)寸。
二、不銹鋼三通的原理
不(bu)(bu)銹(xiu)鋼(gang)三(san)通(tong)是用(yong)于管(guan)(guan)(guan)(guan)(guan)(guan)道分支(zhi)處的(de)一(yi)種(zhong)管(guan)(guan)(guan)(guan)(guan)(guan)件。對(dui)(dui)于采用(yong)無縫(feng)管(guan)(guan)(guan)(guan)(guan)(guan)制(zhi)造三(san)通(tong)來講,通(tong)常所采用(yong)的(de)工(gong)(gong)藝有液壓(ya)(ya)脹(zhang)形(xing)和熱壓(ya)(ya)成(cheng)形(xing)兩(liang)種(zhong)。不(bu)(bu)銹(xiu)鋼(gang)三(san)通(tong)的(de)液壓(ya)(ya)脹(zhang)形(xing)是通(tong)過金屬(shu)材料(liao)的(de)軸向補(bu)償(chang)脹(zhang)出支(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)一(yi)種(zhong)成(cheng)形(xing)工(gong)(gong)藝。其過程(cheng)是采用(yong)專用(yong)液壓(ya)(ya)機,將與三(san)通(tong)直(zhi)徑相等的(de)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)內(nei)(nei)注入液體(ti)(ti),通(tong)過液壓(ya)(ya)機的(de)兩(liang)個水(shui)平(ping)側(ce)缸同步對(dui)(dui)中運動擠壓(ya)(ya)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi),管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)受(shou)擠壓(ya)(ya)后體(ti)(ti)積變(bian)(bian)小,管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)內(nei)(nei)的(de)液體(ti)(ti)隨管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)體(ti)(ti)積變(bian)(bian)小而壓(ya)(ya)力(li)(li)升(sheng)高(gao),當達到不(bu)(bu)銹(xiu)鋼(gang)三(san)通(tong)支(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)脹(zhang)出所需要的(de)壓(ya)(ya)力(li)(li)時(shi),金屬(shu)材料(liao)在側(ce)缸和管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)內(nei)(nei)液體(ti)(ti)壓(ya)(ya)力(li)(li)的(de)雙重作用(yong)下(xia)沿(yan)模具內(nei)(nei)腔(qiang)流動而脹(zhang)出支(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)。
不銹鋼(gang)三通(tong)的液壓脹形(xing)工(gong)藝可一次成形(xing),生產效率較高;不銹鋼(gang)三通(tong)的主管及肩部壁厚均有增加。
三、不銹鋼三通的分類
因不銹鋼三通的(de)液壓脹形(xing)工藝所需(xu)的(de)設備噸(dun)位較大,國內主要(yao)用于小于DN400的(de)標準(zhun)壁厚不(bu)銹(xiu)鋼三通的(de)制(zhi)造(zao)。其適用的(de)成形(xing)材料為冷作硬化傾向相對較低(di)的(de)低(di)碳鋼、低(di)合金鋼、不(bu)銹(xiu)鋼,包括一些有(you)色金屬(shu)材料,如銅、鋁、鈦等。
以制造標準劃分可分為國(guo)標、電標、水標、美標、德標、日標、俄標等,具(ju)體如下:GB/T12459,GB/T13401,ASME B16.9,SH3408,SH3409,HG/T21635,DL/T 695,SY/T 0510,DIN 2615。