為什么要做壓力脈沖試驗
我們所知的液(ye)壓(ya)系(xi)統中(zhong)，介質在(zai)(zai)傳遞能量的過程中(zhong)隨(sui)著閥的開(kai)啟和(he)關閉(bi)或(huo)執行(xing)器(qi)的運動內部壓(ya)力會急(ji)劇(ju)變(bian)化(hua)(hua)，介質的流速也會迅速改變(bian)，伴隨(sui)瞬(shun)時產生的這種(zhong)急(ji)劇(ju)變(bian)化(hua)(hua)通常(chang)具有破(po)壞(huai)性，對(dui)液(ye)壓(ya)系(xi)統中(zhong)的傳輸部件(jian)和(he)執行(xing)器(qi)造成(cheng)壓(ya)力沖(chong)(chong)擊。在(zai)(zai)液(ye)壓(ya)系(xi)統中(zhong)，壓(ya)力沖(chong)(chong)擊作用時時刻刻又無處(chu)不在(zai)(zai)，這種(zhong)挑戰(zhan)的存在(zai)(zai)需要配件(jian)研發和(he)生產者知道產品究竟能夠(gou)抵御多(duo)強和(he)多(duo)久的沖(chong)(chong)擊試(shi)驗，脈沖(chong)(chong)試(shi)驗臺的目的和(he)作用便來源于此。
脈沖測(ce)試的(de)壓(ya)(ya)力取決于配件的(de)工(gong)(gong)作壓(ya)(ya)力本身，一般為工(gong)(gong)作壓(ya)(ya)力的(de)1.0~1.3倍(bei)，航空(kong)領域的(de)液壓(ya)(ya)件條件有時更為苛刻試驗壓(ya)(ya)力甚至為工(gong)(gong)作壓(ya)(ya)力的(de)1.5倍(bei)，沖擊(ji)頻率可高達(da)5hz。
壓(ya)力脈沖(chong)試(shi)驗(yan)(yan)模擬了(le)液壓(ya)配件的(de)壓(ya)力、沖(chong)擊頻率、內(nei)外溫度等因素(su)，盡可能的(de)營造(zao)實際工作(zuo)環境(jing)并超負荷運(yun)行，在記錄和總(zong)結試(shi)驗(yan)(yan)數(shu)據(ju)和試(shi)驗(yan)(yan)經驗(yan)(yan)的(de)基礎上，改進或(huo)研發(fa)產(chan)(chan)品(pin)(pin)。脈沖(chong)試(shi)驗(yan)(yan)數(shu)據(ju)的(de)積累為產(chan)(chan)品(pin)(pin)質(zhi)量問(wen)題的(de)及時發(fa)現(xian)指明(ming)了(le)方向，尤其在新產(chan)(chan)品(pin)(pin)研發(fa)時，通過脈沖(chong)壽命測試(shi)可以直觀(guan)的(de)發(fa)現(xian)產(chan)(chan)品(pin)(pin)存在的(de)問(wen)題，避免了(le)產(chan)(chan)品(pin)(pin)大量投放后質(zhi)量問(wen)題出現(xian)造(zao)成的(de)困擾。
壓力(li)脈沖(chong)試驗多應用(yong)于汽(qi)車(che)行業，航空領域及船(chuan)舶行業，以汽(qi)車(che)配件(jian)(jian)居多，由于歐(ou)標(biao)、美標(biao)甚至通用(yong)、福特等企業標(biao)準(zhun)(zhun)的引入，脈沖(chong)試驗呈現多樣化，介質涵蓋(gai)氣、水、油，甚至同(tong)(tong)時(shi)涵蓋(gai)兩種介質同(tong)(tong)時(shi)試驗。國家標(biao)準(zhun)(zhun)借鑒了國外標(biao)準(zhun)(zhun)得以不斷補(bu)充和提(ti)高，脈沖(chong)試驗同(tong)(tong)爆破試驗一道幾(ji)乎(hu)成(cheng)為(wei)各液(ye)壓件(jian)(jian)標(biao)準(zhun)(zhun)規定(ding)的必檢項目。
浙江思(si)宇流體(ti)設(she)備有限公司引進國內外(wai)先進生(sheng)產(chan)技術(shu),生(sheng)產(chan)水(shui)壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)機(ji),思(si)宇液體(ti)增(zeng)(zeng)(zeng)壓(ya)(ya)(ya)(ya)泵,氣(qi)(qi)(qi)(qi)體(ti)增(zeng)(zeng)(zeng)壓(ya)(ya)(ya)(ya)系統(tong)，液體(ti)增(zeng)(zeng)(zeng)壓(ya)(ya)(ya)(ya)系統(tong)等產(chan)品(pin).其中氣(qi)(qi)(qi)(qi)體(ti)增(zeng)(zeng)(zeng)壓(ya)(ya)(ya)(ya)泵可以增(zeng)(zeng)(zeng)壓(ya)(ya)(ya)(ya)氮氣(qi)(qi)(qi)(qi),氫(qing)氣(qi)(qi)(qi)(qi),天然氣(qi)(qi)(qi)(qi),甲烷(wan),空(kong)氣(qi)(qi)(qi)(qi),氬氣(qi)(qi)(qi)(qi)等大多(duo)數氣(qi)(qi)(qi)(qi)體(ti)增(zeng)(zeng)(zeng)壓(ya)(ya)(ya)(ya)。最高氣(qi)(qi)(qi)(qi)體(ti)壓(ya)(ya)(ya)(ya)力達(da)(da)90MPa。其中液體(ti)最高增(zeng)(zeng)(zeng)壓(ya)(ya)(ya)(ya)可以達(da)(da)到640 Mpa,生(sheng)產(chan)的氣(qi)(qi)(qi)(qi)密(mi)封(feng)實(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)臺(tai)塑料(liao)球閥(fa)(fa)耐壓(ya)(ya)(ya)(ya)爆破(po)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)設(she)備,水(shui)錘試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)機(ji),壓(ya)(ya)(ya)(ya)力試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)臺(tai)廣泛應(ying)用于各個(ge)行業的密(mi)封(feng)實(shi)(shi)驗(yan)(yan)(yan)(yan)(yan),空(kong)氣(qi)(qi)(qi)(qi)彈簧水(shui)壓(ya)(ya)(ya)(ya)爆破(po)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)機(ji),汽車(che)總成產(chan)品(pin)爆破(po)行實(shi)(shi)驗(yan)(yan)(yan)(yan)(yan),輪胎水(shui)壓(ya)(ya)(ya)(ya)爆破(po)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)機(ji),空(kong)調壓(ya)(ya)(ya)(ya)縮機(ji)水(shui)壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)設(she)備,鋼瓶(ping)水(shui)壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan),氣(qi)(qi)(qi)(qi)密(mi)封(feng)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan),瓶(ping)閥(fa)(fa)氣(qi)(qi)(qi)(qi)密(mi)性(xing)實(shi)(shi)驗(yan)(yan)(yan)(yan)(yan),汽車(che)軟(ruan)管爆破(po)性(xing)實(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)等各類產(chan)品(pin)的高壓(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan),套管、油管扣氣(qi)(qi)(qi)(qi)密(mi)封(feng)檢測實(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)臺(tai)……
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