一、不銹鋼三通是什么

不銹鋼三通為管(guan)(guan)件、管(guan)(guan)道(dao)連接(jie)(jie)(jie)件。用在主(zhu)管(guan)(guan)道(dao)要分(fen)支管(guan)(guan)處(chu)。不銹鋼三通有等徑(jing)和異徑(jing)之(zhi)分(fen)，等徑(jing)三通的(de)(de)接(jie)(jie)(jie)管(guan)(guan)端部均為相同的(de)(de)尺寸(cun)(cun)(cun)；異徑(jing)的(de)(de)三通的(de)(de)主(zhu)管(guan)(guan)接(jie)(jie)(jie)管(guan)(guan)尺寸(cun)(cun)(cun)相同，而支管(guan)(guan)的(de)(de)接(jie)(jie)(jie)管(guan)(guan)尺寸(cun)(cun)(cun)小(xiao)于主(zhu)管(guan)(guan)的(de)(de)接(jie)(jie)(jie)管(guan)(guan)尺寸(cun)(cun)(cun)。

二、不銹鋼三通的原理

不(bu)銹(xiu)(xiu)鋼(gang)(gang)三通(tong)(tong)(tong)是(shi)用(yong)于管(guan)(guan)(guan)(guan)(guan)(guan)道分(fen)支處(chu)的一(yi)種(zhong)管(guan)(guan)(guan)(guan)(guan)(guan)件。對于采用(yong)無(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)制造(zao)三通(tong)(tong)(tong)來(lai)講(jiang)，通(tong)(tong)(tong)常所采用(yong)的工藝有液(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)脹(zhang)(zhang)(zhang)形(xing)和(he)熱壓(ya)(ya)(ya)(ya)(ya)成(cheng)形(xing)兩種(zhong)。不(bu)銹(xiu)(xiu)鋼(gang)(gang)三通(tong)(tong)(tong)的液(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)脹(zhang)(zhang)(zhang)形(xing)是(shi)通(tong)(tong)(tong)過金(jin)(jin)屬材料(liao)(liao)的軸向補償脹(zhang)(zhang)(zhang)出支管(guan)(guan)(guan)(guan)(guan)(guan)的一(yi)種(zhong)成(cheng)形(xing)工藝。其過程是(shi)采用(yong)專用(yong)液(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)機(ji)，將與三通(tong)(tong)(tong)直徑相等的管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)(pi)(pi)內注入液(ye)(ye)(ye)體(ti)(ti)，通(tong)(tong)(tong)過液(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)機(ji)的兩個水(shui)平側(ce)缸同步對中運動擠(ji)壓(ya)(ya)(ya)(ya)(ya)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)(pi)(pi)，管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)(pi)(pi)受(shou)擠(ji)壓(ya)(ya)(ya)(ya)(ya)后體(ti)(ti)積變小(xiao)，管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)(pi)(pi)內的液(ye)(ye)(ye)體(ti)(ti)隨管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)(pi)(pi)體(ti)(ti)積變小(xiao)而壓(ya)(ya)(ya)(ya)(ya)力升高，當達到不(bu)銹(xiu)(xiu)鋼(gang)(gang)三通(tong)(tong)(tong)支管(guan)(guan)(guan)(guan)(guan)(guan)脹(zhang)(zhang)(zhang)出所需要的壓(ya)(ya)(ya)(ya)(ya)力時(shi)，金(jin)(jin)屬材料(liao)(liao)在側(ce)缸和(he)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)(pi)(pi)內液(ye)(ye)(ye)體(ti)(ti)壓(ya)(ya)(ya)(ya)(ya)力的雙重作(zuo)用(yong)下沿模具內腔流動而脹(zhang)(zhang)(zhang)出支管(guan)(guan)(guan)(guan)(guan)(guan)。

不(bu)銹鋼三(san)通的液壓脹(zhang)形工藝可一次成形，生(sheng)產(chan)效率(lv)較高(gao)；不(bu)銹鋼三(san)通的主(zhu)管及肩部壁厚均有增加(jia)。

三、不銹鋼三通的分類

因不銹鋼三通的(de)液壓脹形(xing)工(gong)藝(yi)所(suo)需的(de)設備噸位較大，國內主(zhu)要用于小于DN400的(de)標(biao)準壁厚不(bu)銹鋼三(san)通的(de)制造(zao)。其適用的(de)成形(xing)材料為冷作硬化傾(qing)向相對較低的(de)低碳鋼、低合金鋼、不(bu)銹鋼，包括一些有色金屬(shu)材料，如銅、鋁、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(shui)標(biao)(biao)(biao)、美標(biao)(biao)(biao)、德標(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。