简介：
落镖测试仪主要是用于测试薄膜材料的抗冲击强度，例如塑料薄膜、塑料纸和合成薄片均可以使用落镖测试仪。
这台仪器是测试在一定的条件下自由落下的镖刺穿薄膜所需的能量。
能量的描述是通过在一定的条件下薄膜样品破坏50％的重量来定义的。
待测薄膜通过气动夹具夹住，一定范围重量的落镖测试不同厚度的薄膜的抗冲击强度。
仪器特点：
﹡ 符合ASTMD1790: 方法A&B: BS2782 Pt3: 方法352D
﹡地板安装系统
﹡符合国际标准
﹡在正确的的真空度下自动落镖
﹡确定薄柔性材料(例如塑料薄膜、增塑纸和复合板等)的冲击抗力
﹡强度较高薄膜的气动夹具
﹡双重高度选项，强度较高板有附加重量
仪器技术参数：
安装: 地板
方法A落镖头尺寸: 38.1 mm
方法B落镖头尺寸: 50.8 mm
国际标准: BS2782Part 3:方法352E, NFT54-109, ASTM D1709 方法 A 和 B
仪器净重: 32Kg
落镖下落高度: 660 mm方法A,B和C 1525mm方法B和C
Product Description
The Ray-Ran Advanced Falling Dart Impact Tester has been designed to determine the impact resistance of plastic films, papers and composite sheets by use of a free falling dart. This instrument complies with the ASTM D1709 Method A & B and ISO 7765.
The sample is clamped in position, and a dart of known weight is allowed to fall from a either 660mm or 1500mm and hit the sample. The energy required to break the samples is expressed in terms of the weight (mass) of the dart which would result in the failure of 50% of test pieces taken from the sample under test. The test methods are designed to enable the operator to achieve the result by extrapolation from the figures obtained by testing at a number of different drop weights, on a significant number of test specimens. The determination of the result is obtained using the staircase method. The dart weight is decreased or increased by uniform increments after each test, depending on the result (failure or no failure) in the specimen.
Standard features include
Variable height from 660mm to 1525mm, 38.1mm and 50.8mm Spherical headed darts, Binary weight set, Manual clamping, Advanced dedicated microprocessor control, Touch membrane Alpha / Numeric keypad for data entry, LCD display for sequence logic menu auto prompt selection, Yes / no mode selector, RS232 output with data transfer lead, Specview � Scada� software to allow PC control of Tester and real-time viewing of results, Self-calibration procedure, Results downloaded to PC for spreadsheet analysis, Metric units of measure, Ability to store User Names and Material Types, Recipe Manager to store and upload data, High resolution positional encoder, Solenoid dart release, Levelling device, Full safety guarding electrically inhibiting operation when not closed, Fully traceable certificate of calibration, Product user manual, CE mark of conformity, 1 year return to base warranty
Test Description
The Ray-Ran falling dart impact tester provides a method for determining the energy that causes thin flexible material such as plastic film, paper and composite sheets to fail under specified conditions of impact from a free falling dart and determines the energy required to tear or puncture the film. The energy is expressed in terms of the weight (mass) of the dart which would result in the failure of 50% of test pieces taken from the sample under test. It is highly unlikely that an operator could exactly select a weight value which would achieve this 50% failure result. Therefore, the test methods are designed to enable the operator to achieve the result by extrapolation from the figures obtained by testing at a number of different drop weights, on a significant number of test specimens, all cut from the same master sample of film. The determination of the result is obtained using the staircase method. The dart weight is decreased or increased by uniform increments after each test, depending on the result (failure or no failure) in the specimen.
Part Numbers
RR/FD Advanced Falling Dart Impact Tester.
Complies with Standard(s)
ISO 7765-1, ASTM D1709