電子材料試驗機與液壓材料試驗機的區別

本文從(cong)結構特點、性能和應用范圍等方面比較(jiao)了電子試驗(yan)機和液壓(ya)試驗(yan)機的(de)特點。主要區別如下：
?? 1、從結構特點：
??電子(zi)材料(liao)試(shi)驗機(ji)主(zhu)要采用伺服(fu)電機(ji)為(wei)動(dong)力(li)源(yuan)，絲杠和(he)螺母為(wei)執(zhi)行(xing)部件，實現試(shi)驗機(ji)移(yi)動(dong)橫梁的(de)速(su)度控(kong)制(zhi)。在傳(chuan)(chuan)動(dong)控(kong)制(zhi)方面，目(mu)前主(zhu)要有兩種形式：減速(su)機(ji)和(he)同步帶。電子(zi)測(ce)試(shi)機(ji)在測(ce)力(li)中都使(shi)用負傳(chuan)(chuan)感器(qi)。
??液壓材料試驗(yan)(yan)機(ji)(ji)采(cai)用(yong)高(gao)壓液壓源作(zuo)為動力源。使用(yong)手(shou)動閥、伺服閥或比(bi)(bi)例(li)(li)閥作(zuo)為控制元(yuan)件進(jin)行控制。普通液壓試驗(yan)(yan)機(ji)(ji)只能(neng)手(shou)動手(shou)動加載，屬于開(kai)環(huan)控制系統。受價格因素影響(xiang)，稱重傳感器(qi)一般采(cai)用(yong)液壓傳感器(qi)。電液伺服材料試驗(yan)(yan)機(ji)(ji)采(cai)用(yong)伺服閥或比(bi)(bi)例(li)(li)閥作(zuo)為控制元(yuan)件進(jin)行控制。國內一些(xie)廠家也(ye)采(cai)用(yong)了高(gao)精度的載荷傳感器(qi)來測量(liang)力。
?? 2、在適(shi)用(yong)范圍上：
??電(dian)(dian)(dian)子(zi)試(shi)驗(yan)(yan)(yan)機廣泛應用(yong)于各種金(jin)屬、非金(jin)屬、復合材(cai)(cai)料、醫藥(yao)、食品、木(mu)材(cai)(cai)、銅、鋁、塑料型材(cai)(cai)、電(dian)(dian)(dian)線電(dian)(dian)(dian)纜、紙張、薄膜、橡膠、紡織、航空(kong)航天等行(xing)業進行(xing)測試(shi)。拉伸(shen)性(xing)(xing)能指標，同時可根據用(yong)戶提供(gong)的(de)國(guo)內外標準定制各種試(shi)驗(yan)(yan)(yan)數(shu)據處理(li)軟件和試(shi)驗(yan)(yan)(yan)輔助工具。數(shu)顯電(dian)(dian)(dian)子(zi)試(shi)驗(yan)(yan)(yan)機適用(yong)于只(zhi)查詢抗拉強度(du)、抗壓強度(du)等相關(guan)數(shu)據的(de)用(yong)戶。如果您(nin)需要取更復雜(za)的(de)參數(shu)，電(dian)(dian)(dian)腦控制的(de)電(dian)(dian)(dian)子(zi)試(shi)驗(yan)(yan)(yan)機是您(nin)更好的(de)選擇。在性(xing)(xing)價比方面，30T以下的(de)電(dian)(dian)(dian)子(zi)材(cai)(cai)料試(shi)驗(yan)(yan)(yan)機更具優(you)勢。
??液(ye)(ye)(ye)壓材(cai)(cai)料試(shi)(shi)驗(yan)(yan)(yan)機(ji)主要(yao)用(yong)(yong)于(yu)金屬、非金屬材(cai)(cai)料及零(ling)部件、零(ling)部件的拉伸、壓縮、彎曲(qu)等機(ji)械性能試(shi)(shi)驗(yan)(yan)(yan)。液(ye)(ye)(ye)壓材(cai)(cai)料試(shi)(shi)驗(yan)(yan)(yan)機(ji)是(shi)工礦企業、建筑材(cai)(cai)料、質檢(jian)(jian)中(zhong)心(xin)、水利水電、橋梁工程、科研(yan)院(yuan)所、高等院(yuan)校(xiao)力學實(shi)驗(yan)(yan)(yan)室的理想(xiang)檢(jian)(jian)測設(she)備(bei)。手動控制液(ye)(ye)(ye)壓材(cai)(cai)料試(shi)(shi)驗(yan)(yan)(yan)機(ji)價(jia)(jia)格便宜，適用(yong)(yong)于(yu)工礦企業的成品檢(jian)(jian)驗(yan)(yan)(yan)和單一材(cai)(cai)料指標檢(jian)(jian)測。電液(ye)(ye)(ye)伺(si)服(fu)材(cai)(cai)料試(shi)(shi)驗(yan)(yan)(yan)機(ji)適用(yong)(yong)于(yu)要(yao)求較高的鋼鐵、建材(cai)(cai)檢(jian)(jian)測實(shi)驗(yan)(yan)(yan)室。與電子材(cai)(cai)料試(shi)(shi)驗(yan)(yan)(yan)機(ji)相比，30T以(yi)上電液(ye)(ye)(ye)伺(si)服(fu)材(cai)(cai)料試(shi)(shi)驗(yan)(yan)(yan)機(ji)更具(ju)價(jia)(jia)格優勢。
??三。在性能方面：
??電子材料試(shi)(shi)驗機(ji)(ji)，不需(xu)要(yao)油源。因此，使用(yong)(yong)和維護(hu)更清潔(jie)，更方便(bian)(bian)。其測(ce)試(shi)(shi)速(su)度(du)范圍可(ke)以調整。試(shi)(shi)驗速(su)度(du)可(ke)達(da)0.001mm/min-1000mm/min，速(su)比可(ke)達(da)100萬次。試(shi)(shi)驗行(xing)程可(ke)根(gen)據需(xu)要(yao)確定。靈活的(de)。測(ce)力(li)精度(du)高，有的(de)甚至可(ke)以達(da)到(dao)0.2%。體(ti)積小(xiao)、重量輕、空間大，方便(bian)(bian)加裝相(xiang)應裝置進(jin)行(xing)各種材料力(li)學試(shi)(shi)驗。真正做到(dao)一機(ji)(ji)多用(yong)(yong)。目前國(guo)內主流試(shi)(shi)驗機(ji)(ji)廠家生產的(de)電子試(shi)(shi)驗機(ji)(ji)，可(ke)以實現負(fu)載控制(zhi)、應變控制(zhi)、位移控制(zhi)的(de)所謂三閉環控制(zhi)。
??液壓材料試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)機(ji)(ji)受油源流量限制(zhi)(zhi)，試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)速(su)度(du)低(di)。手動液壓試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)機(ji)(ji)操作方便，價格低(di)廉，但控制(zhi)(zhi)精(jing)度(du)低(di)。將(jiang)電(dian)(dian)液伺(si)服試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)機(ji)(ji)的(de)性能與電(dian)(dian)子(zi)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)機(ji)(ji)的(de)性能進行比較。除(chu)了低(di)速(su)，控制(zhi)(zhi)精(jing)度(du)也不錯。帶(dai)有負載傳感器的(de)微機(ji)(ji)控制(zhi)(zhi)電(dian)(dian)液伺(si)服試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)機(ji)(ji)也能達(da)到0.5%左右的(de)力值精(jing)度(du)。并且在做大噸位材料力學試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)時更可靠(kao)、更穩定、更劃算。