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鈦管的特性!

2023-10-30 10:38:09

1.鈦管的壁厚

??導熱管(guan)壁厚由(you)使用(yong)(yong)條件,管(guan)板(ban)材料、擴管(guan)作業(ye)的施工能力(li)、管(guan)端的焊接技(ji)術等來決定,由(you)于導熱管(guan)直徑小,對強度要求不高,因此實際使用(yong)(yong)中采(cai)用(yong)(yong)壁厚較薄(bo)的管(guan)材,一般,銅合(he)金管(guan)等壁厚為(wei)0.9mm-1.2mm;用(yong)(yong)鈦管(guan)代替(ti),在腐蝕性(xing)小的地(di)方,可用(yong)(yong)壁厚為(wei)0.3mm的薄(bo)壁焊管(guan)。

2.的導熱性

??由于導熱(re)管的(de)材質(zhi)不(bu)同(tong),熱(re)導率(lv)也不(bu)同(tong),如鈦(tai)(tai)為(wei)17W/(m·k),鋁黃銅(tong)為(wei)lOOW/(m·k),70/30白銅(tong)為(wei)29W/(m·k),因此,可通過壁(bi)厚的(de)變化控制導熱(re)管的(de)導熱(re)效果。在以上(shang)材料中,鈦(tai)(tai)的(de)熱(re)導率(lv)小.如使(shi)用(yong)薄壁(bi)鈦(tai)(tai)焊管,導熱(re)性雖然(ran)比(bi)鋁黃銅(tong)差,但(dan)與90/10白銅(tong)相當,比(bi)70/30白銅(tong)的(de)要好。

3.鈦管的經濟性

??鈦管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)單位質量(liang)價(jia)(jia)格(ge)比(bi)銅(tong)合金貴2—6倍,但從性價(jia)(jia)比(bi)上考慮,鈦管(guan)(guan)(guan)(guan)(guan)(guan)價(jia)(jia)格(ge)可與銅(tong)合金管(guan)(guan)(guan)(guan)(guan)(guan)抗衡,由于(yu)鈦的(de)(de)密(mi)度(du)低,壁(bi)厚(hou)相(xiang)同時(shi),同等長度(du)的(de)(de)鈦管(guan)(guan)(guan)(guan)(guan)(guan)質量(liang)只是銅(tong)合金管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)50%,當鈦管(guan)(guan)(guan)(guan)(guan)(guan)壁(bi)厚(hou)為銅(tong)合金管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)50%時(shi),相(xiang)同傳熱面(mian)積的(de)(de)鈦管(guan)(guan)(guan)(guan)(guan)(guan)質量(liang)僅為銅(tong)合金管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)1/4,按目前的(de)(de)價(jia)(jia)格(ge)水(shui)平,采用薄壁(bi)鈦焊管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)整體(ti)價(jia)(jia)格(ge)與鋁銅(tong)管(guan)(guan)(guan)(guan)(guan)(guan)相(xiang)同,比(bi)白銅(tong)管(guan)(guan)(guan)(guan)(guan)(guan)還(huan)便宜。可見(jian),鈦管(guan)(guan)(guan)(guan)(guan)(guan)在價(jia)(jia)格(ge)方面(mian)是有競爭(zheng)力的(de)(de)。


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