為什么不銹鋼法蘭運用那么廣泛?
不銹鋼法蘭運(yun)(yun)用很廣,在輸油、輸水(shui)、輸氣管道上都(dou)有運(yun)(yun)用,而(er)且大部分仍是有 壓力的(de)。
不銹鋼法蘭焊(han)接(jie)裝置空(kong)地(di)(di)為(wei)0,由于加(jia)工(gong)(gong)制(zhi)造(zao)過失有(you)時空(kong)地(di)(di)太大,焊(han)接(jie)時熔易燒穿,處(chu)理的辦(ban)法可以(yi)在法蘭管(guan)直(zhi)(zhi)管(guan)上要堆(dui)疊當地(di)(di)堆(dui)焊(han)一層,經機加(jia)工(gong)(gong)到0~0.05mm空(kong)地(di)(di)或(huo)手(shou)工(gong)(gong)修磨。假(jia)設套不上去(qu),應車小或(huo)磨小法蘭管(guan)直(zhi)(zhi)管(guan)外徑,直(zhi)(zhi)到適合(he)中止。
不銹(xiu)鋼法蘭焊(han)接(jie)起(qi)弧(hu)(hu) 要在法蘭管上(shang)進行,電弧(hu)(hu)要指厚管上(shang),運用(yong)(yong)電弧(hu)(hu)外焰加熱波紋管,并用(yong)(yong)焊(han)絲(si)擋住(zhu)波紋管邊際,用(yong)(yong)熔化(hua)的不銹(xiu)鋼焊(han)絲(si)來(lai)熔化(hua)波紋管。
焊(han)(han)接(jie)時運條 要在厚管上(shang)進行(xing),選用短焊(han)(han)縫(feng)焊(han)(han)接(jie)或點焊(han)(han)進行(xing)焊(han)(han)接(jie)。不銹(xiu)(xiu)鋼(gang)(gang)法蘭(lan)焊(han)(han)接(jie)時要時刻觀測波紋(wen)管熔(rong)(rong)化情(qing)況,一(yi)般(ban)一(yi)次(ci)熔(rong)(rong)化1~3個熔(rong)(rong)池(chi),不宜連續焊(han)(han)接(jie),特別在空地(di)較大時非常簡略燒穿,不銹(xiu)(xiu)鋼(gang)(gang)法蘭(lan)電弧焊(han)(han)接(jie)的技巧(qiao)便是電弧不能(neng)直(zhi)接(jie)指向波紋(wen)管,而(er)用電弧余熱熔(rong)(rong)化波紋(wen)管進行(xing)焊(han)(han)接(jie)。不銹(xiu)(xiu)鋼(gang)(gang)法蘭(lan)焊(han)(han)接(jie)時要注意這些(xie)事(shi)項。