波紋管彎曲試驗機使用說明書

一、依(yi)據國(guo)家(jia)規范《QBT 3631-1999 聚(ju)氯乙烯塑料(liao)(liao)波紋電線(xian)(xian)管(guan)(guan)》標準第(di)5.6常溫試(shi)驗(yan)和(he)低(di)溫試(shi)驗(yan)方法(fa)所生產。能滿(man)足(zu)：聚(ju)氯乙烯（PVC）樹脂為(wei)主要原(yuan)料(liao)(liao)，經擠出成(cheng)型的(de)塑料(liao)(liao)波紋電線(xian)(xian)管(guan)(guan)的(de)試(shi)驗(yan)方法(fa)。同時也可做《JG 3050-1998 建筑用絕(jue)緣電工套(tao)管(guan)(guan)及配件》中相應規格尺寸的(de)半硬(ying)質套(tao)管(guan)(guan)、波紋套(tao)管(guan)(guan)彎曲試(shi)驗(yan)。

需(xu)配套使用設備：

QBT3631-4A熱變形量規、QBT3631-5D低溫(wen)試(shi)驗(yan)箱、秒表(biao)等。

二、主要技術指標：

適(shi)用波紋(wen)電(dian)線管公(gong)稱(cheng)直徑：9.10.15

波紋(wen)電線(xian)管基本(ben)外徑尺寸(cun)：14、16、20mm

彎曲角度(du)：正反90°

調節輪直徑：84、96、120mm

標準中涉及到的公稱直徑9.10.15.20.25.32.40.50.均有生產.
三、波紋管彎曲試驗機操作說明：

把設備(bei)(bei)平放于工(gong)作臺上并調節底(di)座為水平，檢查(cha)設備(bei)(bei)各部份無松動現象。

四、常溫彎曲試驗方(fang)法：

取(qu)長度為波紋電(dian)(dian)線(xian)管(guan)(guan)(guan)公(gong)稱直(zhi)徑12倍的(de)試(shi)樣(yang)(yang)(yang)(yang)3根，選擇(ze)合適試(shi)樣(yang)(yang)(yang)(yang)直(zhi)徑的(de)位置（注：一般同(tong)臺設備(bei)設計(ji)時，可同(tong)時做(zuo)三種規格的(de)電(dian)(dian)線(xian)管(guan)(guan)(guan)試(shi)驗(yan)），將(jiang)試(shi)樣(yang)(yang)(yang)(yang)管(guan)(guan)(guan)通過兩調節轉中(zhong)間插入(ru)設備(bei)底座的(de)中(zhong)心孔中(zhong)，用(yong)手將(jiang)試(shi)樣(yang)(yang)(yang)(yang)管(guan)(guan)(guan)左右(you)各彎曲一次(ci)并保(bao)(bao)持5min，試(shi)驗(yan)后電(dian)(dian)線(xian)管(guan)(guan)(guan)無損傷且電(dian)(dian)線(xian)管(guan)(guan)(guan)試(shi)樣(yang)(yang)(yang)(yang)表面應無可見裂紋，在(zai)不(bu)取(qu)出試(shi)樣(yang)(yang)(yang)(yang)管(guan)(guan)(guan)并盡可能使試(shi)樣(yang)(yang)(yang)(yang)管(guan)(guan)(guan)保(bao)(bao)持在(zai)90°的(de)狀(zhuang)態下，選擇(ze)合適尺寸(cun)（QBT3631-4A熱變形(xing)量(liang)規）的(de)量(liang)規，塞進試(shi)樣(yang)(yang)(yang)(yang)管(guan)(guan)(guan)中(zhong)，使之在(zai)自重狀(zhuang)態下能順利通過試(shi)樣(yang)(yang)(yang)(yang)管(guan)(guan)(guan)，方為合格。

五、低溫彎曲試驗方法：

將常溫(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)合格(ge)(ge)的(de)(de)(de)試(shi)(shi)(shi)(shi)樣(yang)管(guan)(guan)(guan)連同(tong)波(bo)紋管(guan)(guan)(guan)彎曲(qu)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機(ji)一(yi)同(tong)放進QBT3631-5D低溫(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱內，低溫(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱溫(wen)(wen)度調節到-15±2℃的(de)(de)(de)溫(wen)(wen)度。保持2h后取出，同(tong)時在(zai)波(bo)紋管(guan)(guan)(guan)彎曲(qu)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機(ji)中(zhong)選擇合適(shi)的(de)(de)(de)位置，將試(shi)(shi)(shi)(shi)樣(yang)管(guan)(guan)(guan)通(tong)過(guo)兩調節轉中(zhong)間插入(ru)設備(bei)底座的(de)(de)(de)中(zhong)心孔中(zhong)，用(yong)手將試(shi)(shi)(shi)(shi)樣(yang)管(guan)(guan)(guan)左(zuo)右各(ge)彎曲(qu)一(yi)次，每個試(shi)(shi)(shi)(shi)樣(yang)應在(zai)30s內完成，試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)后電線管(guan)(guan)(guan)無(wu)損傷且電線管(guan)(guan)(guan)試(shi)(shi)(shi)(shi)樣(yang)表(biao)面應無(wu)可見裂紋，選擇合適(shi)尺(chi)寸（QBT3631-4A熱(re)變形(xing)量規）的(de)(de)(de)量規，塞(sai)進試(shi)(shi)(shi)(shi)樣(yang)管(guan)(guan)(guan)中(zhong)，使之(zhi)在(zai)自重狀態下能順(shun)利(li)通(tong)過(guo)試(shi)(shi)(shi)(shi)樣(yang)管(guan)(guan)(guan)，方為合格(ge)(ge)。

六、試驗(yan)完畢(bi)后(hou)，請裝設備擦拭(shi)干凈后(hou)用(yong)儀器罩蓋好。

波紋管彎曲試驗機使用說明書