拉伸強度電子萬(wàn)能材料試驗機

拉伸強度電子萬(wàn)能材料試驗機硬件介紹：

6.1系統全數字設計，精度高、穩定、安全、數字調零；

6.2全系統無(wú)任何可調器件，硬件數字調零和測控參數自動(dòng)標定；

6.3本系統采用PCI2.2總線(xiàn)標準，易擴展、易升級而且做到“即插即用”；                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

6.4控制系統集程控放大A/D轉換、計數及脈沖發(fā)生（PWM）等功能于一體。

拉伸強度電子萬(wàn)能材料試驗機主要計數指標
A．荷重元：0-3T
B．力量解析度：1/300000
C．力量準確度：≤0.5％
D．力量放大倍數：7段自動(dòng)切換
E．位移解析度：1/1000
F．位移準確度：≤0.5％
G．金屬引伸計解析度：1/1000
H．金屬引伸計準確度：≤0.5％
I．大變形引伸計準確度：±1mm
J．速度范圍：0.001－500mm/min（特殊測試速度亦可依客戶(hù)需求定制）
K．行走空間：950mm（不含夾持器、特殊測試空間亦可依客戶(hù)需求定制）
L．測試寬度：350mm（特殊測試寬度亦可依客戶(hù)需求定制）
M．使用電源:∮220V 50HZ。
N．功率：約600W
O. 機臺尺寸:約660×560×1600 mm(長(cháng)×寬×高)  

普通測試項目：（普通顯示值及計算值）
●拉伸應力      ●拉伸強度
●扯斷強度      ●扯斷伸長(cháng)率
●定伸應力      ●定應力伸長(cháng)率
●定應力力值    ●撕裂強度
●任意點(diǎn)力值    ●任意點(diǎn)伸長(cháng)率
●抽出力         ●粘合力及取峰值計算值
●壓力試驗       ●粘合力剝離力試驗
●彎曲試驗       ●拔出力穿刺力試驗

力量精度在±0.5 %以?xún)取?/span>
B.容量分段:全程七檔：× 1，× 2，× 5，× 10，× 20，× 50，× 100
采用高精度24 bits A/D，取樣頻率200Hz
全程力量zui大解析度 1/3000,000
C.動(dòng)力系統:見(jiàn)配置清單

D.控制系統: 采用Pulse Command控制方式使控制更精準
速度控制范圍0.001~500 mm/min。
中聯(lián)板調整具有快速粗調與慢速微調功能。
測試后自動(dòng)回歸原點(diǎn)、自動(dòng)儲存。
E.數據傳輸方式：RS232傳輸
F.顯示方式:UTM107+WIN-XP測試軟件計算機屏幕顯示。
G.簡(jiǎn)潔的全程一檔與精密全程七檔力量線(xiàn)性雙校正系統。
H.豪華測試界面軟件可實(shí)現定速度、定位移、定荷重（可設定保持時(shí)間）、定荷重增率、定應力增率、定應變增率等控制模式加上多階控制模式可滿(mǎn)足不同的測試要求。
I.測試空間:測試寬度約350 mm（標準規格）
 聯(lián)板行走空間950 mm（不含夾具）（標準規格）
J.全程位移: 編碼器2500 P/R，提升4倍精度
采用LINE DRIVE編碼器抗干擾能力*
位移解析0.001mm。
小變形：金屬引伸計，解析 0.001mm（選購）
K.安全裝置:過(guò)載緊急停機裝置、上下行程限定裝置、漏電自動(dòng)斷電系統、自動(dòng)斷點(diǎn)停機功能。
M．手控方式：可增添無(wú)線(xiàn)遙控裝置或手動(dòng)操作盒。（選購）

特殊測試項目：
1.彈性系數即彈性楊氏模量
定義：同相位的法向應力分量與法向應變之比。為測定材料剛性之系數，其值越高，材料越強韌。
2.比例限：荷重在一定范圍內與伸長(cháng)可以維持成正比之關(guān)系，其zui大應力即為比極限。
3.彈性限：為材料所能承受而不呈*變形之zui大應力。
4.彈性變形：除去荷重后，材料的變形*消失。
5.*變形：除去荷重后，材料仍殘留變形。
6.屈服點(diǎn)：材料拉伸時(shí)，變形增快而應力不變，此點(diǎn)即為屈服點(diǎn)。屈服點(diǎn)分為上下屈服點(diǎn)，一般以上屈服點(diǎn)作為屈服點(diǎn)。
屈服（yield）：荷重超過(guò)比例限與伸長(cháng)不再成正比，荷重會(huì )突降，然后在一段時(shí)間內，上下起伏，伸長(cháng)發(fā)生較大變化，這種現象叫作屈服。
7.屈服強度：拉伸時(shí)，*伸長(cháng)率達到某一規定值之荷重，除以平行部原斷面積，所得之商。
8.彈簧K值：與變形同相位的作用力分量與形變之比。
9.有效彈性和滯后損失：
在拉力機上，以一定的速度將試樣拉伸到一定的伸長(cháng)率或拉伸到規定的負荷時(shí)，測定試樣收縮時(shí)恢復的功和伸張時(shí)消耗的功之比的百分數，即為有效彈性；測定試樣伸長(cháng)、收縮時(shí)所損失的能與伸長(cháng)時(shí)所消耗的功之比的百分數，即為滯后損失。

主要配置：

4.1 單臂式高強度主機一臺：

4.1.1高精度圓弧同步減速系統一套；

4.1.2中國臺灣ABBA高精密滾珠絲杠副兩套；

4.1.3試驗機拉伸輔具一套；

4.2測控系統一套：

4.2.1高精度光電編碼器一只；

4.2.2數字調速調速系統一套；

4.2.3數字調速調速電機一套；

4.2.4高精度負荷傳感器一支；

根據GB/T2611-2007《試驗機通用技術(shù)要求》和GB/T16491-2008《電子式萬(wàn)能試驗機》標準制造。計算機全自動(dòng)控制設備的上升、下降、試驗、停止等，設備外形美觀(guān)、操作方便、性能穩定可靠。

產(chǎn)品主要用于金屬、非金屬材料的拉伸、壓縮、彎曲等力學(xué)性能試驗。廣泛應用于航天航空、石油化工、機械制造、塑料橡膠、陶瓷建材、金屬材料、建筑工程等行業(yè)，以及高等院校、科研機構、技術(shù)監督、質(zhì)檢站所等部門(mén)。