膠管近年來,開始采用(yong)熱(re)塑性橡膠(jiao),如熱(re)塑性聚(ju)氨酯橡膠(jiao)、聚(ju)酯橡膠(jiao)等。膠(jiao)管(guan)(guan)(guan)因(yin)易彎曲、能(neng)緩沖、重(zhong)量輕及(ji)安裝使(shi)用(yong)方便等優點,用(yong)途十(shi)分(fen)(fen)廣泛(fan),如農(nong)業上排灌農(nong)田、港灣疏浚(jun)中(zhong)吸排泥漿(jiang),飛機、坦克、汽(qi)車及(ji)許多(duo)機械裝備中(zhong)的液壓(ya)(ya)系統(tong)、氣(qi)(qi)動系統(tong)、燃(ran)油(you)系統(tong)均使(shi)用(yong)許多(duo)膠(jiao)管(guan)(guan)(guan)。氣(qi)(qi)割操作(zuo)需要較大(da)的氧氣(qi)(qi)輸出量,因(yin)此與氧氣(qi)(qi)表(biao)高壓(ya)(ya)端連接(jie)的氣(qi)(qi)瓶(ping)(或(huo)氧氣(qi)(qi)管(guan)(guan)(guan)道)閥(fa)門應(ying)全打開,以便保證提(ti)供足夠的流(liu)量和(he)穩定的壓(ya)(ya)力(li),防止(zhi)低壓(ya)(ya)表(biao)雖已表(biao)示(shi)工作(zuo)壓(ya)(ya)力(li),但使(shi)用(yong)時(shi)壓(ya)(ya)力(li)突然下降,此時(shi)容易發生(sheng)回火,并可能(neng)倒燃(ran)進入(ru)氧氣(qi)(qi)膠(jiao)管(guan)(guan)(guan)而引起爆炸。在保存、運(yun)輸和(he)使(shi)用(yong)膠(jiao)管(guan)(guan)(guan)時(shi)必須注(zhu)意維(wei)護,保持(chi)膠(jiao)管(guan)(guan)(guan)的清潔和(he)不受損壞。例如避免陽光照射(she),雨雪浸淋、防止(zhi)與酸(suan)、堿、油(you)類及(ji)其他(ta)有機溶劑等影(ying)響膠(jiao)管(guan)(guan)(guan)質(zhi)量的物(wu)質(zhi)接(jie)觸。存放溫度為-15~40℃,距離熱(re)源應(ying)不小于1m.如果(guo)由(you)于保存和(he)使(shi)用(yong)時(shi)維(wei)護不善,或(huo)膠(jiao)管(guan)(guan)(guan)使(shi)用(yong)日久老(lao)化脆(cui)硬,這些膠(jiao)管(guan)(guan)(guan)內的硫磺質(zhi)被分(fen)(fen)解出來,常(chang)常(chang)會因(yin)此引起回火爆炸事故(gu)。