一、不銹鋼三通是什么
不銹鋼三通為(wei)管(guan)(guan)(guan)(guan)件(jian)、管(guan)(guan)(guan)(guan)道(dao)連接(jie)(jie)件(jian)。用在主管(guan)(guan)(guan)(guan)道(dao)要分支管(guan)(guan)(guan)(guan)處。不銹鋼三通有等(deng)徑(jing)(jing)和異徑(jing)(jing)之分,等(deng)徑(jing)(jing)三通的(de)接(jie)(jie)管(guan)(guan)(guan)(guan)端部均(jun)為(wei)相(xiang)(xiang)同(tong)的(de)尺(chi)寸(cun)(cun)(cun);異徑(jing)(jing)的(de)三通的(de)主管(guan)(guan)(guan)(guan)接(jie)(jie)管(guan)(guan)(guan)(guan)尺(chi)寸(cun)(cun)(cun)相(xiang)(xiang)同(tong),而支管(guan)(guan)(guan)(guan)的(de)接(jie)(jie)管(guan)(guan)(guan)(guan)尺(chi)寸(cun)(cun)(cun)小于主管(guan)(guan)(guan)(guan)的(de)接(jie)(jie)管(guan)(guan)(guan)(guan)尺(chi)寸(cun)(cun)(cun)。
二、不銹鋼三通的原理
不銹(xiu)鋼(gang)三通(tong)(tong)是(shi)(shi)用(yong)(yong)于管道分支(zhi)處的(de)(de)(de)一(yi)種管件(jian)。對于采(cai)用(yong)(yong)無縫管制(zhi)造三通(tong)(tong)來講,通(tong)(tong)常所(suo)(suo)采(cai)用(yong)(yong)的(de)(de)(de)工(gong)藝有液(ye)(ye)壓(ya)(ya)脹(zhang)形和熱壓(ya)(ya)成(cheng)形兩(liang)種。不銹(xiu)鋼(gang)三通(tong)(tong)的(de)(de)(de)液(ye)(ye)壓(ya)(ya)脹(zhang)形是(shi)(shi)通(tong)(tong)過金屬材料的(de)(de)(de)軸向(xiang)補償脹(zhang)出支(zhi)管的(de)(de)(de)一(yi)種成(cheng)形工(gong)藝。其(qi)過程是(shi)(shi)采(cai)用(yong)(yong)專用(yong)(yong)液(ye)(ye)壓(ya)(ya)機,將與三通(tong)(tong)直(zhi)徑相等的(de)(de)(de)管坯(pi)內(nei)注入液(ye)(ye)體(ti),通(tong)(tong)過液(ye)(ye)壓(ya)(ya)機的(de)(de)(de)兩(liang)個水(shui)平側缸同步(bu)對中運動(dong)擠(ji)壓(ya)(ya)管坯(pi),管坯(pi)受擠(ji)壓(ya)(ya)后體(ti)積(ji)變小,管坯(pi)內(nei)的(de)(de)(de)液(ye)(ye)體(ti)隨管坯(pi)體(ti)積(ji)變小而壓(ya)(ya)力(li)升高,當達到(dao)不銹(xiu)鋼(gang)三通(tong)(tong)支(zhi)管脹(zhang)出所(suo)(suo)需要的(de)(de)(de)壓(ya)(ya)力(li)時,金屬材料在側缸和管坯(pi)內(nei)液(ye)(ye)體(ti)壓(ya)(ya)力(li)的(de)(de)(de)雙重(zhong)作用(yong)(yong)下沿模具(ju)內(nei)腔流動(dong)而脹(zhang)出支(zhi)管。
不銹鋼三通的液(ye)壓脹(zhang)形(xing)工藝可一次成(cheng)形(xing),生產(chan)效率(lv)較高(gao);不銹鋼三通的主管及肩(jian)部壁(bi)厚均有增加。
三、不銹鋼三通的分類
因不銹鋼三通的(de)(de)液壓脹形(xing)(xing)工藝所需的(de)(de)設備噸位較大,國內主(zhu)要用于小于DN400的(de)(de)標(biao)準壁厚不銹(xiu)鋼三通(tong)的(de)(de)制造。其適用的(de)(de)成形(xing)(xing)材料為冷作(zuo)硬化傾向相對較低(di)的(de)(de)低(di)碳鋼、低(di)合金(jin)鋼、不銹(xiu)鋼,包(bao)括一(yi)些有色金(jin)屬(shu)材料,如銅、鋁(lv)、鈦等。
以制造標準(zhun)劃(hua)分(fen)可分(fen)為(wei)國(guo)標、電標、水標、美標、德標、日標、俄標等,具體(ti)如下:GB/T12459,GB/T13401,ASME B16.9,SH3408,SH3409,HG/T21635,DL/T 695,SY/T 0510,DIN 2615。