ISO 6603-1:2000 塑料.硬质塑料刺穿冲击性能的测定.第1部分：无设备冲击试验.

标准编号：ISO 6603-1:2000

中文名称：塑料.硬质塑料刺穿冲击性能的测定.第1部分：无设备冲击试验.

英文名称：Plastics — Determination of puncture impact behaviour of rigid plastics — Part 1: Non-instrumented impact testing

发布日期：2000-03

标准范围

本国际标准规定了硬质塑料在空气中的穿刺冲击性能的测定方法扁平试样的形状，如圆盘或方形试样，在规定条件下。样本可能是直接成型、从板材上切割或从成品上取下。不同类型的试样和试验定义了条件。这些落镖法用于研究塑料薄膜或模塑件在冲击下的行为指垂直于试样平面的撞针。如果ISO 6603的这一部分足以通过一个阈值来表征塑料的冲击性能，则可以使用该部分基于多个试样的冲击破坏能值。如果力偏转或施力时间在名义上恒定的撞击速度下记录的图表对于详细描述撞击是必要的行为这些试验方法适用于厚度在1 mm和4 mm之间的试样。注:对于小于1 mm的厚度，最好使用ISO 7765。厚度大于4 mm的零件可能会损坏测试设备是否合适，但测试不在ISO 6603-1和ISO 6603-2的范围内。这些方法适用于以下类型的材料:_刚性热塑性模塑和挤压材料，包括填充、未填充和增强化合物，以及被单；_刚性热固性模塑和挤压材料，包括填充和增强化合物、板材和层压板；_含有单向或非单向纤维的纤维增强热固性和热塑性复合材料增强材料，如垫子、机织物、机织粗纱、短切原丝、复合材料和混合材料预浸渍材料（预浸料）制成的增强材料、粗纱、碾磨纤维和板材。这些方法也适用于由成品模制或加工而成的试样，层压板和挤压或铸造板材。只有在试样的制备条件、尺寸和尺寸相同时，试验结果才具有可比性表面和试验条件相同。特别是在不同类型的样品上测定的结果厚度不能相互比较（见ISO 6603-2的附录E:-）。综合评价对冲击应力的反应要求根据冲击速度和温度进行测定不同的材料变量，如结晶度和水分含量。成品的冲击性能不能直接从该试验中预测，但可以取样从成品（见上文）中提取，通过这些方法进行测试。通过这些方法得出的试验数据不应用于设计计算。然而，关于通过在不同温度和冲击速度下进行试验，可以获得材料的典型性能（参见通过改变厚度（见ISO 6603-2:-）和试样在不同条件下制备。ISO 6603本部分描述了两种统计试验方法:_方法A:楼梯法（个人）（首选）在这种方法中，测试过程中采用了均匀的能量增量。能量减少或增加通过测试每个试样后的均匀增量，取决于观察到的结果（通过或失败）之前的测试。_方法B:分组法（可选）在该方法中，对至少十个试样的连续组进行试验。冲击破坏能量为根据统计数据计算。

This International Standard specifies methods for the determination of puncture-impact properties of rigid plastics inthe form of flat test specimens, such as discs or square pieces, under defined conditions. Specimens may bemoulded directly, cut from sheets or taken from finished products. Different types of test specimens and testconditions are defined.These falling-dart methods are used to investigate the behaviour of plastic sheeting or mouldings under the impactof a striker applied perpendicular to the plane of the specimen.This part of ISO 6603 can be used if it is sufficient to characterize the impact behaviour of plastics by a thresholdvalue of impact-failure energy based on many test specimens. ISO 6603-2 is used if a force-deflection or force-timediagram, recorded at nominally constant striker velocity, is necessary for detailed characterization of the impactbehaviour.These test methods are applicable to specimens with a thickness between 1 mm and 4 mm.NOTE For thicknesses less than 1 mm, ISO 7765 should preferably be used. Thicknesses greater than 4 mm may betested if the equipment is suitable, but the test falls outside the scope of ISO 6603-1 and ISO 6603-2.These methods are suitable for use with the following types of material:_ rigid thermoplastic moulding and extrusion materials, including filled, unfilled and reinforced compounds andsheets;_ rigid thermosetting moulding and extrusion materials, including filled and reinforced compounds, sheets andlaminates;_ fibre-reinforced thermoset and thermoplastic composites incorporating unidirectional or non-unidirectionalreinforcements such as mats, woven fabrics, woven rovings, chopped strands, combination and hybridreinforcements, rovings, milled fibres and sheets made from pre-impregnated materials (prepregs).These methods are also applicable to specimens which are either moulded or machined from finished products,laminates and extruded or cast sheet.The test results are comparable only if the conditions of preparation of the specimens, their dimensions andsurfaces as well as the test conditions are the same. In particular, results determined on specimens of differentthickness cannot be compared with one another (see annex E of ISO 6603-2:—). Comprehensive evaluation of thereaction to impact stress requires that determinations be made as a function of impact velocity and temperature fordifferent material variables, such as crystallinity and moisture content.The impact behaviour of finished products cannot be predicted directly from this test, but specimens may be takenfrom finished products (see above) for test by these methods.Test data developed by these methods should not be used for design calculations. However, information on thetypical behaviour of the material can be obtained by testing at different temperatures and impact velocities (seeannex D of ISO 6603-2:—), by varying the thickness (see annex E of ISO 6603-2:—) and by testing specimensprepared under different conditions.Two statistical methods of test are described in this part of ISO 6603:_ Method A: staircase method (individual) (preferred)In this method, a uniform energy increment is employed during testing. The energy is decreased or increasedby the uniform increment after testing each specimen, depending upon the observed result (pass or fail) for thepreceding test._ Method B: group method (optional)In this method, successive groups of at least ten test specimens are tested. The impact failure energy iscalculated by statistics.

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