金屬管液壓試驗方法

        試樣

      經外觀檢查合格的任意整(zheng)根(gen)金屬管(guan)。

      試驗要(yao)求

       試驗時,金屬(shu)管(guan)兩端應與壓力計的有關部件緊密連接。

       加壓(ya)時(shi)應均勻地增至規定的最大(da)試(shi)驗壓(ya)力(li),不得(de)有液壓(ya)沖擊現象,可在試(shi)件(jian)內放填充(chong)棒,以(yi)減少壓(ya)力(li)傳(chuan)遞(di)介質的用量(liang),填充(chong)棒與(yu)內壁(bi)之問(wen)要(yao)留有問(wen)隙。

      最大(da)試(shi)(shi)驗(yan)壓(ya)(ya)力、加壓(ya)(ya)速(su)度和試(shi)(shi)驗(yan)穩壓(ya)(ya)時(shi)間(jian)以及(ji)卸壓(ya)(ya)速(su)度應(ying)在有關產品標準或(huo)協議中(zhong)規定,若無規定,最大(da)試(shi)(shi)驗(yan)壓(ya)(ya)力可參烈附錄A的(de)規定:加壓(ya)(ya),壓(ya)(ya)速(su)度本應(ying)大(da)十34MPa/min。試(shi)(shi)驗(yan)空試(shi)(shi)驗(yan)穩壓(ya)(ya)時(shi)間(jian)般不少(shao)于15mm。

       對(dui)所有(you)規格的(de)鑄鐵管,外徑大(da)于219mm的(de)焊(han)接管,在(zai)試驗穩壓(ya)時間內,應(ying)用(yong)質(zhi)量約0.5kg的(de)軟質(zhi)錘(chui)沿金國管長(chang)度或兩(liang)端處輕輕敲打。根(gen)據供需雙方協議可不(bu)進行(xing)敲打。

      試驗期間(jian)如出現(xian)滲漏或煤裂(lie),應(ying)停止加(jia)壓。

     破壞性試驗

     根據供需雙方協議,可(ke)參照爾錄B資料性(xing)附錄)的方法進(jin)行破壞性(xing)試(shi)驗(yan)。

      試驗結果評定(ding)

      在(zai)最(zui)大試(shi)(shi)驗(yan)壓力作(zuo)用(yong)下,試(shi)(shi)驗(yan)穩壓時問內,用(yong)目(mu)視(shi)檢查金屬管基體的外表面或(huo)(huo)焊縫是(shi)(shi)否有(you)涉漏(lou),如無滲漏(lou),試(shi)(shi)驗(yan)后金屬管是(shi)(shi)否產生(sheng)水久變(bian)形(xing)。如果試(shi)(shi)驗(yan)中未發(fa)現金屬管基體的外表面或(huo)(huo)焊縫涉漏(lou)。也沒(mei)發(fa)現試(shi)(shi)驗(yan)后金屬管產生(sheng)水久變(bian)形(xing),則認為該管液壓試(shi)(shi)驗(yan)合格。

       浙(zhe)江思(si)宇流體(ti)設備有限公(gong)司引進(jin)國內外(wai)先進(jin)生(sheng)產(chan)技術,生(sheng)產(chan)水(shui)壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)機(ji),思(si)宇液(ye)體(ti)增(zeng)壓(ya)(ya)(ya)(ya)泵(beng),氣(qi)(qi)(qi)體(ti)增(zeng)壓(ya)(ya)(ya)(ya)系(xi)統(tong)，液(ye)體(ti)增(zeng)壓(ya)(ya)(ya)(ya)系(xi)統(tong)等產(chan)品(pin).其中氣(qi)(qi)(qi)體(ti)增(zeng)壓(ya)(ya)(ya)(ya)泵(beng)可以增(zeng)壓(ya)(ya)(ya)(ya)氮氣(qi)(qi)(qi),氫氣(qi)(qi)(qi),天然氣(qi)(qi)(qi),甲(jia)烷(wan),空氣(qi)(qi)(qi),氬氣(qi)(qi)(qi)等大多數氣(qi)(qi)(qi)體(ti)增(zeng)壓(ya)(ya)(ya)(ya)。最高(gao)氣(qi)(qi)(qi)體(ti)壓(ya)(ya)(ya)(ya)力(li)達90MPa。其中液(ye)體(ti)最高(gao)增(zeng)壓(ya)(ya)(ya)(ya)可以達到640 Mpa,生(sheng)產(chan)的(de)(de)氣(qi)(qi)(qi)密(mi)封實(shi)(shi)(shi)驗(yan)(yan)臺(tai)塑料球閥耐(nai)壓(ya)(ya)(ya)(ya)爆破(po)試(shi)(shi)(shi)驗(yan)(yan)設備,水(shui)錘(chui)試(shi)(shi)(shi)驗(yan)(yan)機(ji),壓(ya)(ya)(ya)(ya)力(li)試(shi)(shi)(shi)驗(yan)(yan)臺(tai)廣泛應用于各(ge)個行業的(de)(de)密(mi)封實(shi)(shi)(shi)驗(yan)(yan),空氣(qi)(qi)(qi)彈簧水(shui)壓(ya)(ya)(ya)(ya)爆破(po)試(shi)(shi)(shi)驗(yan)(yan)機(ji),汽車總成產(chan)品(pin)爆破(po)行實(shi)(shi)(shi)驗(yan)(yan),輪胎(tai)水(shui)壓(ya)(ya)(ya)(ya)爆破(po)試(shi)(shi)(shi)驗(yan)(yan)機(ji),空調壓(ya)(ya)(ya)(ya)縮機(ji)水(shui)壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)設備,鋼瓶水(shui)壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan),氣(qi)(qi)(qi)密(mi)封試(shi)(shi)(shi)驗(yan)(yan),瓶閥氣(qi)(qi)(qi)密(mi)性實(shi)(shi)(shi)驗(yan)(yan),汽車軟(ruan)管爆破(po)性實(shi)(shi)(shi)驗(yan)(yan)等各(ge)類產(chan)品(pin)的(de)(de)高(gao)壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan),套管、油管扣氣(qi)(qi)(qi)密(mi)封檢(jian)測實(shi)(shi)(shi)驗(yan)(yan)臺(tai)……

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水壓試驗臺	液壓增壓系統	氣體循環泵