微机控制电缆和光缆绝缘和护套材料拉力试验机
1.简介
该微机控制电缆和光缆绝缘和护套材料拉力试验机用于检测通信用电缆和光缆,包括船舶及近海用电缆和光缆的聚合物绝缘和护套材料的抗拉伸性能,同时也适用于普通类型的绝缘和护套材料,如弹性体,聚氯乙烯,聚乙烯,聚丙烯等材料的拉伸性能检测.
2.试验方法
GB/T 2951.11 电缆和光缆绝缘和护套材料通用试验方法 第11部分:通用试验方法------厚度和外形尺寸测量------机械性能试验 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 电线和光缆------非金属材料的试验方法------第501部分：机械试验-------绝缘和护套化合物力学性能测定试验
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
电缆和光缆绝缘和护套材料拉力试验中的术语:
拉力 (maximum tensile force):试验期间负荷达到的值
拉伸应力(tensile stress):试件未拉伸时的单位面积上的拉力
抗张强度(tensile strength):拉伸试件至断裂时记录的抗拉应力
断裂伸长率(elongation at break):试件拉伸至断裂时,标记距离的增量与未拉伸试样的标记距离的百分比
中间值(median value):将获得的应有个数的试验数据以递增或递减次序排列,当有效个数为奇数时,则中间值为正中间一个数值;若为偶数时,则中间值为中间两个数值的平均值
3.试验机技术参数
序号 | 项目 | 规格 | |||
1 | 试验力 | 20KN及以下 | 30/50KN | 100KN | |
2 | 试验力测量范围 | 1%-99%FS | |||
3 | 试验力测量准确度 | 优于示值±1% | |||
4 | 横梁位移测量精度 | 0.01mm | |||
5 | 位移测量准确度 | ±1% | |||
6 | 变形测量范围 | 0.4%-99%FS | |||
7 | 变形测量精度 | ±0.5% | |||
8 | 变形分辨率 | 0.01mm | |||
9 | 力控速率调节范围 | 0.005-5%FS/S | |||
10 | 力控速率相对误差 | ±1%设定值以内 | |||
11 | 变形速率调节范围 | 0.02-5%FS/S | |||
12 | 变形控制速率相对误差 | 速率＜0.05％FS时，为±2%设定值以内； 速率≥0.05％FS时，为±0.5%设定值以内； | |||
13 | 横梁速度测量范围 | 0.001-500mm/min | |||
14 | 横梁速度相对误差 | 速率＜0.01 mm/min时，设定值的±1.0%以内； 速率≥0.01 mm/min时，设定值的±0.2%以内； | |||
15 | 恒力、恒变形、恒位移控制范围 | 0.5％～100％FS | |||
16 | 恒力、恒变形、恒位移控制范围 | 设定值<10%FS时，设定值 的±1.0%以内 设定值≥10%FS时,设定值的±0.1%以内 | |||
17 | 变形速率控制精度 | 速率<0.05%FS时为±2.0%设定值内 速率≥0.05%FS时为±0.5%设定值内 | |||
18 | 拉伸空间 | 700mm | 700mm | 700mm | |
19 | 工作环境 | 室温—35℃,相对湿度不超过80% | |||
20 | 整机电源 | 单相,220V±10%,50Hz | |||
21 | 电机功率 | 0.75KW | 0.75KW | 1.5KW | |
22 | 主机尺寸 | 750x480x1700mm | 720x520x1800mm | 900x600x2100mm | |
23 | 重量 | 280kg | 350kg | 450kg | |
4.试验软件特点
4.1.自动停机：试样断裂后，移动横梁自动停止；
4.2.条件存盘：试验控制数据和试样条件可制成模块，方便了批量试验的进行；
4.3.自动变速：试验过程中移动横梁的速度可按预先设定的程序自动变化，也可手动变化；
4.4.自动标定：系统可自动实现示值准确度的标定；
4.5.自动保存：试验结束，试验数据和曲线自动保存；
4.6.过程实现：试验过程、测量、显示和分析等均由微机完成；
4.7.批量试验：对相同参数的试样，一次设定后可顺次完成
4.8.试验软件：中文WINDOWS界面，菜单提示，鼠标操作；
4.9.显示方式：数据和曲线随试验过程动态显示；
4.10.曲线遍历：试验完成后，可对曲线进行再分析，用鼠标可找到曲线上任一点所对应的试验数据；
4.11.曲线选择：可根据需要选择应力-应变、力-位移、力-时间、位移-时间等曲线进行显示和打印；
12.试验报告：可按用户要求的格式编制报告并打印；
13.限位保护：具有程控和机械两级限位保护；
14.过载保护：当负荷超过各档值的3-5%时，自动停机；
15.自动和人工两种模式求取试验结果，自动形成报表，使数据分析过程简便。
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 | ||
