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不(bu)銹(xiu)鋼(gang)三(san)通(tong)(tong)為(wei)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、管(guan)(guan)(guan)(guan)(guan)道連(lian)接(jie)件(jian)(jian)。用在主(zhu)管(guan)(guan)(guan)(guan)(guan)道要(yao)分(fen)支(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)(guan)處。 不(bu)銹(xiu)鋼(gang)三(san)通(tong)(tong)有等徑(jing)和(he)異徑(jing)之分(fen),等徑(jing)三(san)通(tong)(tong)的(de)(de)(de)接(jie)管(guan)(guan)(guan)(guan)(guan)端(duan)部均為(wei)相(xiang)(xiang)同的(de)(de)(de)尺寸;異徑(jing)的(de)(de)(de)三(san)通(tong)(tong)的(de)(de)(de)主(zhu)管(guan)(guan)(guan)(guan)(guan)接(jie)管(guan)(guan)(guan)(guan)(guan)尺寸相(xiang)(xiang)同,而支(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)接(jie)管(guan)(guan)(guan)(guan)(guan)尺寸小于主(zhu)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)接(jie)管(guan)(guan)(guan)(guan)(guan)尺寸。不(bu)銹(xiu)鋼(gang)三(san)通(tong)(tong)是用于管(guan)(guan)(guan)(guan)(guan)道分(fen)支(zhi)(zhi)(zhi)處的(de)(de)(de)一(yi)種管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)。對于采(cai)(cai)用無(wu)縫管(guan)(guan)(guan)(guan)(guan)制造(zao)三(san)通(tong)(tong)來講(jiang),目前通(tong)(tong)常所采(cai)(cai)用的(de)(de)(de)工藝(yi)有液壓(ya)(ya)脹(zhang)形和(he)熱(re)壓(ya)(ya)成形兩種。不(bu)銹(xiu)鋼(gang)三(san)通(tong)(tong)的(de)(de)(de)液壓(ya)(ya)脹(zhang)形是通(tong)(tong)過(guo)金(jin)屬材料的(de)(de)(de)軸向補償脹(zhang)出支(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)一(yi)種成形工藝(yi)。其過(guo)程是采(cai)(cai)用專用液壓(ya)(ya)機(ji)(ji),將與三(san)通(tong)(tong)直徑(jing)相(xiang)(xiang)等的(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)坯內注入(ru)液體(ti),通(tong)(tong)過(guo)液壓(ya)(ya)機(ji)(ji)的(de)(de)(de)兩個水平(ping)側(ce)缸(gang)同步對中運動擠壓(ya)(ya)管(guan)(guan)(guan)(guan)(guan)坯,管(guan)(guan)(guan)(guan)(guan)坯受擠壓(ya)(ya)后體(ti)積變小,管(guan)(guan)(guan)(guan)(guan)坯內的(de)(de)(de)液體(ti)隨管(guan)(guan)(guan)(guan)(guan)坯體(ti)積變小而壓(ya)(ya)力升高,當達到不(bu)銹(xiu)鋼(gang)三(san)通(tong)(tong)支(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)(guan)脹(zhang)出所需要(yao)的(de)(de)(de)壓(ya)(ya)力時,金(jin)屬材料在側(ce)缸(gang)和(he)管(guan)(guan)(guan)(guan)(guan)坯內液體(ti)壓(ya)(ya)力的(de)(de)(de)雙重作用下沿模具內腔(qiang)流動而脹(zhang)出支(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)(guan)。

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