一、不銹鋼三通是什么

不銹鋼三通為管(guan)(guan)(guan)(guan)件、管(guan)(guan)(guan)(guan)道(dao)連(lian)接(jie)(jie)件。用在主管(guan)(guan)(guan)(guan)道(dao)要分支管(guan)(guan)(guan)(guan)處(chu)。不銹鋼(gang)三通有(you)等(deng)徑和(he)異(yi)徑之(zhi)分，等(deng)徑三通的(de)接(jie)(jie)管(guan)(guan)(guan)(guan)端部均為相同(tong)的(de)尺寸(cun)(cun)；異(yi)徑的(de)三通的(de)主管(guan)(guan)(guan)(guan)接(jie)(jie)管(guan)(guan)(guan)(guan)尺寸(cun)(cun)相同(tong)，而(er)支管(guan)(guan)(guan)(guan)的(de)接(jie)(jie)管(guan)(guan)(guan)(guan)尺寸(cun)(cun)小(xiao)于(yu)主管(guan)(guan)(guan)(guan)的(de)接(jie)(jie)管(guan)(guan)(guan)(guan)尺寸(cun)(cun)。

二、不銹鋼三通的原理

不銹(xiu)鋼三(san)通(tong)(tong)(tong)是(shi)用(yong)(yong)于管(guan)道分支(zhi)處的(de)(de)一種管(guan)件。對(dui)于采用(yong)(yong)無縫管(guan)制造三(san)通(tong)(tong)(tong)來講，通(tong)(tong)(tong)常(chang)所采用(yong)(yong)的(de)(de)工藝(yi)有液(ye)(ye)(ye)壓(ya)(ya)脹(zhang)形和熱壓(ya)(ya)成(cheng)形兩種。不銹(xiu)鋼三(san)通(tong)(tong)(tong)的(de)(de)液(ye)(ye)(ye)壓(ya)(ya)脹(zhang)形是(shi)通(tong)(tong)(tong)過(guo)(guo)金(jin)屬(shu)材料(liao)的(de)(de)軸向補償脹(zhang)出支(zhi)管(guan)的(de)(de)一種成(cheng)形工藝(yi)。其(qi)過(guo)(guo)程(cheng)是(shi)采用(yong)(yong)專用(yong)(yong)液(ye)(ye)(ye)壓(ya)(ya)機(ji)(ji)，將與三(san)通(tong)(tong)(tong)直徑相(xiang)等的(de)(de)管(guan)坯內注入液(ye)(ye)(ye)體(ti)，通(tong)(tong)(tong)過(guo)(guo)液(ye)(ye)(ye)壓(ya)(ya)機(ji)(ji)的(de)(de)兩個(ge)水(shui)平側缸同步對(dui)中運動擠壓(ya)(ya)管(guan)坯，管(guan)坯受(shou)擠壓(ya)(ya)后(hou)體(ti)積變小，管(guan)坯內的(de)(de)液(ye)(ye)(ye)體(ti)隨(sui)管(guan)坯體(ti)積變小而壓(ya)(ya)力升高，當(dang)達到不銹(xiu)鋼三(san)通(tong)(tong)(tong)支(zhi)管(guan)脹(zhang)出所需要的(de)(de)壓(ya)(ya)力時(shi)，金(jin)屬(shu)材料(liao)在側缸和管(guan)坯內液(ye)(ye)(ye)體(ti)壓(ya)(ya)力的(de)(de)雙重作用(yong)(yong)下沿模(mo)具內腔流動而脹(zhang)出支(zhi)管(guan)。

不銹(xiu)鋼(gang)三通(tong)的液壓脹(zhang)形工藝可一次成形，生產效率較(jiao)高(gao)；不銹(xiu)鋼(gang)三通(tong)的主(zhu)管及肩部壁厚均(jun)有增加。

三、不銹鋼三通的分類

因不銹鋼三通的(de)(de)液壓脹形工藝(yi)所需的(de)(de)設(she)備噸(dun)位較(jiao)大，國內主要(yao)用于(yu)小于(yu)DN400的(de)(de)標(biao)準(zhun)壁(bi)厚不銹(xiu)鋼三(san)通的(de)(de)制造。其適用的(de)(de)成形材料(liao)為冷作(zuo)硬化(hua)傾向相(xiang)對較(jiao)低(di)的(de)(de)低(di)碳鋼、低(di)合(he)金(jin)鋼、不銹(xiu)鋼，包(bao)括一(yi)些有色(se)金(jin)屬(shu)材料(liao)，如銅(tong)、鋁、鈦等(deng)。

以(yi)制造標(biao)準劃分可分為國標(biao)、電標(biao)、水標(biao)、美標(biao)、德標(biao)、日標(biao)、俄(e)標(biao)等，具(ju)體(ti)如下(xia)：GB/T12459，GB/T13401，ASME B16.9，SH3408，SH3409，HG/T21635，DL/T 695，SY/T 0510，DIN 2615。