【三通】什么是三通 三通有哪些材質

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三通材質有哪些

三通的材料有鑄鐵、不銹鋼、合金鋼、可煅鑄鐵、碳鋼等。與管子的聯結的方式有：直接焊接（最常用的方式）法蘭聯結、螺紋聯結有承插式聯結等。管道安裝中常用的一種連接用管件，用于管道拐彎外的連接。連接三根公稱通徑相同或者不同的管子，使管路作一定角度轉彎。三通的分類：異徑三通，Y型三通(tong)，高壓三通(tong)等。

1、以材質劃分為：碳鋼、鑄鋼、合金鋼、不銹鋼、銅、鋁合金等。

2、以制作(zuo)方法劃分(fen)可分(fen)為：推制、壓(ya)(ya)(ya)(ya)(ya)(ya)制、鍛制、鑄(zhu)造等。三(san)通(tong)(tong)(tong)(tong)接(jie)頭(tou)成(cheng)形是(shi)(shi)(shi)將(jiang)大(da)于(yu)三(san)通(tong)(tong)(tong)(tong)直(zhi)徑(jing)(jing)的(de)管(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)，壓(ya)(ya)(ya)(ya)(ya)(ya)扁約至(zhi)三(san)通(tong)(tong)(tong)(tong)直(zhi)徑(jing)(jing)的(de)尺(chi)寸，在(zai)拉伸(shen)(shen)支管(guan)(guan)(guan)(guan)(guan)的(de)部位開一個(ge)孔；管(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)經加(jia)熱，放入(ru)成(cheng)形模(mo)中，并在(zai)管(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)內裝入(ru)拉伸(shen)(shen)支管(guan)(guan)(guan)(guan)(guan)的(de)沖模(mo)；在(zai)壓(ya)(ya)(ya)(ya)(ya)(ya)力的(de)作(zuo)用(yong)(yong)(yong)下管(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)被徑(jing)(jing)向(xiang)(xiang)壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)，在(zai)徑(jing)(jing)向(xiang)(xiang)壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)的(de)過程中金屬(shu)向(xiang)(xiang)支管(guan)(guan)(guan)(guan)(guan)方向(xiang)(xiang)流動并在(zai)沖模(mo)的(de)拉伸(shen)(shen)下形成(cheng)支管(guan)(guan)(guan)(guan)(guan)。整(zheng)個(ge)過程是(shi)(shi)(shi)通(tong)(tong)(tong)(tong)過管(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)的(de)徑(jing)(jing)向(xiang)(xiang)壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)和支管(guan)(guan)(guan)(guan)(guan)部位的(de)拉伸(shen)(shen)過程而成(cheng)形。與液壓(ya)(ya)(ya)(ya)(ya)(ya)脹(zhang)形三(san)通(tong)(tong)(tong)(tong)不同(tong)的(de)是(shi)(shi)(shi)，三(san)通(tong)(tong)(tong)(tong)接(jie)頭(tou)支管(guan)(guan)(guan)(guan)(guan)的(de)金屬(shu)是(shi)(shi)(shi)由管(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)的(de)徑(jing)(jing)向(xiang)(xiang)運動進行補償的(de)，所以也稱為徑(jing)(jing)向(xiang)(xiang)補償工藝(yi)。由于(yu)采用(yong)(yong)(yong)加(jia)熱后壓(ya)(ya)(ya)(ya)(ya)(ya)制三(san)通(tong)(tong)(tong)(tong)，材(cai)料成(cheng)形所需要的(de)設備噸位降低。熱壓(ya)(ya)(ya)(ya)(ya)(ya)三(san)通(tong)(tong)(tong)(tong)對(dui)材(cai)料的(de)適應性(xing)較寬，適用(yong)(yong)(yong)于(yu)低碳鋼(gang)、合(he)金鋼(gang)、不銹(xiu)鋼(gang)的(de)材(cai)料；特別是(shi)(shi)(shi)大(da)直(zhi)徑(jing)(jing)和管(guan)(guan)(guan)(guan)(guan)壁(bi)偏厚的(de)三(san)通(tong)(tong)(tong)(tong)，通(tong)(tong)(tong)(tong)常采用(yong)(yong)(yong)這種(zhong)成(cheng)形工藝(yi)。不銹(xiu)鋼(gang)三(san)通(tong)(tong)(tong)(tong)是(shi)(shi)(shi)管(guan)(guan)(guan)(guan)(guan)件和管(guan)(guan)(guan)(guan)(guan)道的(de)連接(jie)件的(de)一種(zhong)，主要用(yong)(yong)(yong)于(yu)管(guan)(guan)(guan)(guan)(guan)道分(fen)支處得管(guan)(guan)(guan)(guan)(guan)件。

它的特點優勢有四種：

1、完全解(jie)決了傳(chuan)統連接管(guan)密(mi)閉封(feng)(feng)面之間相(xiang)互摩擦而影響密(mi)封(feng)(feng)的(de)問題；流動阻力小，不(bu)銹鋼三通阻力系數與同長(chang)度的(de)管(guan)段相(xiang)等；

2、對裝(zhuang)在(zai)管道上的(de)不銹鋼三通可直接在(zai)線(xian)檢(jian)查與(yu)維修，能(neng)有(you)效減少裝(zhuang)置停車(che)，降低成本；結構簡(jian)單、體積小，重量輕。

3、不(bu)銹鋼(gang)三通(tong)管(guan)件密封(feng)結構，閥門是靠闊(kuo)干(gan)提供(gong)的(de)(de)機械力，將(jiang)球壓到在(zai)閥體上，是管(guan)件的(de)(de)密封(feng)性(xing)不(bu)受管(guan)件差(cha)變化的(de)(de)影響，在(zai)各種工況下密封(feng)性(xing)能(neng)都有保證；在(zai)全(quan)開或全(quan)閉(bi)時，不(bu)會引起(qi)閥門密封(feng)面(mian)得侵蝕。

4、適(shi)用范(fan)圍廣(guang)，通經從小到幾毫(hao)米，大到幾米，從高真(zhen)空至高壓力都可應用。