一、不銹鋼三通是什么
不銹鋼三通為管(guan)(guan)(guan)件、管(guan)(guan)(guan)道連接(jie)件。用(yong)在主(zhu)管(guan)(guan)(guan)道要分支(zhi)管(guan)(guan)(guan)處(chu)。不銹鋼三通(tong)(tong)有等徑(jing)(jing)和異徑(jing)(jing)之分,等徑(jing)(jing)三通(tong)(tong)的接(jie)管(guan)(guan)(guan)端部均為相同的尺寸;異徑(jing)(jing)的三通(tong)(tong)的主(zhu)管(guan)(guan)(guan)接(jie)管(guan)(guan)(guan)尺寸相同,而(er)支(zhi)管(guan)(guan)(guan)的接(jie)管(guan)(guan)(guan)尺寸小于主(zhu)管(guan)(guan)(guan)的接(jie)管(guan)(guan)(guan)尺寸。
二、不銹鋼三通的原理
不銹鋼(gang)(gang)三通(tong)(tong)(tong)是用于管(guan)(guan)(guan)道分支處的(de)(de)(de)一種管(guan)(guan)(guan)件。對于采用無(wu)縫管(guan)(guan)(guan)制造(zao)三通(tong)(tong)(tong)來講(jiang),通(tong)(tong)(tong)常(chang)所(suo)采用的(de)(de)(de)工藝有液(ye)(ye)壓(ya)脹(zhang)(zhang)形和熱(re)壓(ya)成(cheng)形兩種。不銹鋼(gang)(gang)三通(tong)(tong)(tong)的(de)(de)(de)液(ye)(ye)壓(ya)脹(zhang)(zhang)形是通(tong)(tong)(tong)過金屬材料的(de)(de)(de)軸(zhou)向補償脹(zhang)(zhang)出支管(guan)(guan)(guan)的(de)(de)(de)一種成(cheng)形工藝。其過程是采用專用液(ye)(ye)壓(ya)機,將與三通(tong)(tong)(tong)直徑(jing)相等(deng)的(de)(de)(de)管(guan)(guan)(guan)坯(pi)內注入液(ye)(ye)體(ti),通(tong)(tong)(tong)過液(ye)(ye)壓(ya)機的(de)(de)(de)兩個(ge)水平側(ce)缸同(tong)步對中運動擠(ji)壓(ya)管(guan)(guan)(guan)坯(pi),管(guan)(guan)(guan)坯(pi)受擠(ji)壓(ya)后體(ti)積(ji)(ji)變(bian)小(xiao),管(guan)(guan)(guan)坯(pi)內的(de)(de)(de)液(ye)(ye)體(ti)隨管(guan)(guan)(guan)坯(pi)體(ti)積(ji)(ji)變(bian)小(xiao)而(er)壓(ya)力升(sheng)高,當(dang)達到不銹鋼(gang)(gang)三通(tong)(tong)(tong)支管(guan)(guan)(guan)脹(zhang)(zhang)出所(suo)需要(yao)的(de)(de)(de)壓(ya)力時,金屬材料在側(ce)缸和管(guan)(guan)(guan)坯(pi)內液(ye)(ye)體(ti)壓(ya)力的(de)(de)(de)雙重作用下沿模具內腔流動而(er)脹(zhang)(zhang)出支管(guan)(guan)(guan)。
不(bu)銹(xiu)鋼三通的(de)液壓脹形工藝可一次成形,生產效率較高;不(bu)銹(xiu)鋼三通的(de)主管及(ji)肩部壁厚均有增(zeng)加。
三、不銹鋼三通的分類
因不銹鋼三通的(de)(de)液(ye)壓脹形工藝所需的(de)(de)設備噸位(wei)較大,國內主要(yao)用于小于DN400的(de)(de)標準(zhun)壁厚(hou)不(bu)銹(xiu)鋼(gang)三通的(de)(de)制造(zao)。其適用的(de)(de)成形材料為(wei)冷作硬化(hua)傾向相對較低的(de)(de)低碳鋼(gang)、低合金鋼(gang)、不(bu)銹(xiu)鋼(gang),包括一(yi)些有(you)色金屬材料,如銅、鋁(lv)、鈦等。
以制造標(biao)(biao)(biao)準劃分(fen)可分(fen)為國標(biao)(biao)(biao)、電標(biao)(biao)(biao)、水標(biao)(biao)(biao)、美標(biao)(biao)(biao)、德(de)標(biao)(biao)(biao)、日標(biao)(biao)(biao)、俄標(biao)(biao)(biao)等,具體如下:GB/T12459,GB/T13401,ASME B16.9,SH3408,SH3409,HG/T21635,DL/T 695,SY/T 0510,DIN 2615。