微機控制電纜和光纜絕緣和護套材料拉力試驗機
1.簡介
該微機控制電纜和光纜絕緣和護套材料拉力試驗機用于檢測通信用電纜和光纜,包括船舶及近海用電纜和光纜的聚合物絕緣和護套材料的抗拉伸性能,同時也適用于普通類型的絕緣和護套材料,如彈性體,聚氯乙烯,聚乙烯,聚丙烯等材料的拉伸性能檢測.
2.試驗方法
GB/T 2951.11 電纜和光纜絕緣和護套材料通用試驗方法 第11部分:通用試驗方法------厚度和外形尺寸測量------機械性能試驗 common test methods for insulating and sheathing materials of electric and optical cables------part 11: methods of general application------measurement of thickness and overall dimensions------tests for determining the mechanical properties
EN 60811-501 electric and optical fibre cables------test methods for non-metallic materials------part 501:mechanical tests------tests for determining the mechanical properties of insulating and sheathing compounds 電線和光纜------非金屬材料的試驗方法------第501部分：機械試驗-------絕緣和護套化合物力學性能測定試驗
IEC 60811-1-1 common test methods for insulating and sheathing materials of electric cables and optical cables------part 1-1:methods for general application------measurement of thickness and overall dimensions------tests fo determining the mechanical properties
電纜和光纜絕緣和護套材料拉力試驗中的術語:
拉力 (maximum tensile force):試驗期間負荷達到的值
拉伸應力(tensile stress):試件未拉伸時的單位面積上的拉力
抗張強度(tensile strength):拉伸試件至斷裂時記錄的抗拉應力
斷裂伸長率(elongation at break):試件拉伸至斷裂時,標記距離的增量與未拉伸試樣的標記距離的百分比
中間值(median value):將獲得的應有個數的試驗數據以遞增或遞減次序排列,當有效個數為奇數時,則中間值為正中間一個數值;若為偶數時,則中間值為中間兩個數值的平均值
3.試驗機技術參數
序號 | 項目 | 規格 | |||
1 | 試驗力 | 20KN及以下 | 30/50KN | 100KN | |
2 | 試驗力測量范圍 | 1%-99%FS | |||
3 | 試驗力測量準確度 | 優于示值±1% | |||
4 | 橫梁位移測量精度 | 0.01mm | |||
5 | 位移測量準確度 | ±1% | |||
6 | 變形測量范圍 | 0.4%-99%FS | |||
7 | 變形測量精度 | ±0.5% | |||
8 | 變形分辨率 | 0.01mm | |||
9 | 力控速率調節范圍 | 0.005-5%FS/S | |||
10 | 力控速率相對誤差 | ±1%設定值以內 | |||
11 | 變形速率調節范圍 | 0.02-5%FS/S | |||
12 | 變形控制速率相對誤差 | 速率＜0.05％FS時，為±2%設定值以內； 速率≥0.05％FS時，為±0.5%設定值以內； | |||
13 | 橫梁速度測量范圍 | 0.001-500mm/min | |||
14 | 橫梁速度相對誤差 | 速率＜0.01 mm/min時，設定值的±1.0%以內； 速率≥0.01 mm/min時，設定值的±0.2%以內； | |||
15 | 恒力、恒變形、恒位移控制范圍 | 0.5％～100％FS | |||
16 | 恒力、恒變形、恒位移控制范圍 | 設定值<10%FS時，設定值 的±1.0%以內 設定值≥10%FS時,設定值的±0.1%以內 | |||
17 | 變形速率控制精度 | 速率<0.05%FS時為±2.0%設定值內 速率≥0.05%FS時為±0.5%設定值內 | |||
18 | 拉伸空間 | 700mm | 700mm | 700mm | |
19 | 工作環境 | 室溫—35℃,相對濕度不超過80% | |||
20 | 整機電源 | 單相,220V±10%,50Hz | |||
21 | 電機功率 | 0.75KW | 0.75KW | 1.5KW | |
22 | 主機尺寸 | 750x480x1700mm | 720x520x1800mm | 900x600x2100mm | |
23 | 重量 | 280kg | 350kg | 450kg | |
4.試驗軟件特點
4.1.自動停機：試樣斷裂后，移動橫梁自動停止；
4.2.條件存盤：試驗控制數據和試樣條件可制成模塊，方便了批量試驗的進行；
4.3.自動變速：試驗過程中移動橫梁的速度可按預先設定的程序自動變化，也可手動變化；
4.4.自動標定：系統可自動實現示值準確度的標定；
4.5.自動保存：試驗結束，試驗數據和曲線自動保存；
4.6.過程實現：試驗過程、測量、顯示和分析等均由微機完成；
4.7.批量試驗：對相同參數的試樣，一次設定后可順次完成
4.8.試驗軟件：中文WINDOWS界面，菜單提示，鼠標操作；
4.9.顯示方式：數據和曲線隨試驗過程動態顯示；
4.10.曲線遍歷：試驗完成后，可對曲線進行再分析，用鼠標可找到曲線上任一點所對應的試驗數據；
4.11.曲線選擇：可根據需要選擇應力-應變、力-位移、力-時間、位移-時間等曲線進行顯示和打印；
12.試驗報告：可按用戶要求的格式編制報告并打印；
13.限位保護：具有程控和機械兩級限位保護；
14.過載保護：當負荷超過各檔值的3-5%時，自動停機；
15.自動和人工兩種模式求取試驗結果，自動形成報表，使數據分析過程簡便。
Computer control insulating and sheathing materials of electric and optical cables testing machine
1.introductions
This computer control insulating and sheathing materials of electric and optical cables testing machine is to measure and determine the tensile properties of insulating and sheathing materials used on electric and optical cables for communication, ship and offshore. This tensile testing machine is also suitable for normal insulating and sheathing materials, such as elastomer, Polyvinyl chloride, polyethylene, polypropylene, etc. in tensile properties measuring.
2. test method
GB/T 2951.11 common test methods for insulating and sheathing materials of electric and optical cables------part 11: methods of general application------measurement of thickness and overall dimensions------tests for determining the mechanical properties
EN 60811-501 electric and optical fibre cables------test methods for non-metallic materials------part 501:mechanical tests------tests for determining the mechanical properties of insulating and sheathing compounds
IEC 60811-1-1 common test methods for insulating and sheathing materials of electric cables and optical cables------part 1-1:methods for general application------measurement of thickness and overall dimensions------tests fo determining the mechanical properties
3. measuring parameters
maximum tensile force: highest value reached by the load during the test
tensile stress: tensile force per unit of the cross-sectional area of the unstreched test piece
tensile strength: maximum tensile stress recorded in extending the test piece to breaking point
elongation at break: increase of the length between the reference marks of the test piece, expresses at the percentage of the length between the reference marks of the unstreched test piece at breaking point
4. technical specifiations
No | Item | Specification | ||||
1 | Force capacity | 20KN and lower | 30/50KN | 100KN | ||
2 | Measuring range | 1%-99%FS | ||||
3 | Accuracy of force value | Less than ±1% of set value | ||||
4 | Precision of displacement | 0.01mm | ||||
5 | Accuracy of displacement value | ±1% | ||||
6 | Deformation measuring range | 0.4%-99%FS | ||||
7 | Accuracy of deformation measuring | ±0.5% | ||||
8 | Resolution of deformation | 0.01mm | ||||
9 | Force speed range | 0.005-5%FS/S | ||||
10 | Accuracy of force speed | Less than ±1% of set value | ||||
11 | Deformation speed range | 0.02-5%FS/S | ||||
12 | Accuracy of deformation speed control | set value is less than 0.05%FS，error is less than ±2.0% of set value | ||||
13 | Displacement speed range | 0.001-500mm/min | ||||
14 | Accuracy of displacement speed | speed is less than 0.01mm/min，error is less than ±1.0% of set value | ||||
15 | Range of constant force, constant deformation, constant displacement control | 0.5％～100％FS | ||||
16 | Accuracy of constant force, constant deformation, constant displacement control | set value is less than 10%FS，error is less than ±1.0% of set value set value is more than 10%FS，error is less than ±0.1% of set value | ||||
17 | Accuracy of deformation speed | set value is less than 0.05%FS,error is less than ±2.0% of set value set value is more than 0.05%FS,error is less than ±0.5% of set value | ||||
18 | Tension space | 700mm | 700mm | 700mm | ||
20 | Voltage | Single phase,220V±10%,50Hz(110V) | ||||
21 | Motor power | 0.75KW | 0.75KW | 1.5KW | ||
22 | Dimension | 750x480x1700mm | 720x520x1800mm | 900x600x2100mm | ||
23 | Weight | 280kg | 350kg | 450kg | ||
