焊接波紋管是近年來國內外興起的一種新型元件,它有兩突出的優點:變形量大,壽命長.利用其改進熱聲機械,有可能解決許多重大問題.文中介紹了焊接波紋管的結構,總結了其在熱聲機械中可能的幾點應用,對其壽命也做了初步討論.

波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)：波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)是指(zhi)用可折(zhe)疊(die)皺紋(wen)(wen)(wen)片沿折(zhe)疊(die)伸(shen)縮方向(xiang)(xiang)連接(jie)成(cheng)的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)狀彈性敏感元件。波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)在儀器儀表中應用廣泛，主(zhu)要用途是為開口(kou)端(duan)(duan)固(gu)定，密封(feng)端(duan)(duan)處于自由狀態，并利用輔(fu)助的(de)(de)螺旋彈簧(huang)或簧(huang)片增加(jia)彈性。工作時(shi)在內部壓(ya)力(li)的(de)(de)作用下沿管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子長度方向(xiang)(xiang)伸(shen)長，使(shi)活(huo)動(dong)端(duan)(duan)產生與(yu)壓(ya)力(li)成(cheng)一定關系的(de)(de)位移。活(huo)動(dong)端(duan)(duan)帶動(dong)指(zhi)針(zhen)即可直(zhi)接(jie)指(zhi)示壓(ya)力(li)的(de)(de)大小。波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)常常與(yu)位移傳感器組合(he)起來構(gou)成(cheng)輸出為電(dian)量的(de)(de)壓(ya)力(li)傳感器，有時(shi)也用作隔離元件。由于波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)伸(shen)展要求較大的(de)(de)容積變(bian)化，因此它的(de)(de)響應速度低于波(bo)(bo)登管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)按構(gou)成(cheng)材料可分為金屬波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、非金屬波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)兩種(zhong)；按結(jie)構(gou)可分為單層和多層。