ASTM D3822 纺织纤维拉伸性能
纱线内纤维的特性对纱线的功能和美学性能起着重要作用。对这些纤维的改性可能会以多种方式影响纱线的性能。在纱线的开发及开发后期阶段,需根据 ASTM D3822 进行拉伸测试,以评估纤维或长丝的力学性能。拉伸测试也作为一种质量控制措施在制造过程中进行,以确认材料符合规格。
在处理非常细的纺织品时,往往难以确定最合适的测试配置。选择便于安装和取出试样的夹具很重要。在某些情况下,用胶带制作标签可能会使试样的安装更容易。当试样小到难以用肉眼看清时,这一点尤其重要。如果使用了合适的夹具,就不应该出现试样滑动或在夹具内断裂的情况。
单根纤维可能非常脆弱,并且可能在极低的负荷下发生断裂。选择合适的力传感器以确保在低力值下获得最高精度至关重要。在这种情况下,Instron 的 5N 力传感器是最佳选择。
有多种夹具适用于单根纤维。如果试样足够长,我们建议使用帘线和纱线类夹具,这类夹具可以减少试样过早断裂的几率并有助于保持对中。50 N 气动侧动夹具也可能适用于此应用,并可在许多情况下使用。
按照这一标准进行测试的挑战在于
- 试样夹持
- 低载荷值
Instron 的解决方案:
- 英斯特朗气动绳线和纱线夹具非常适合夹持多种类型的纤维试样,同时保持高测试量
- 英斯特朗提供传统的气动平推夹具,最小容量为 50N,非常适合测试具有低断裂载荷的精细纤维
- Instron 的 6800 系列能够测量低至力传感器容量 0.1%(1/1000th)的力,从而实现对极低力值的精确测量。
重要的是要仔细阅读 ASTM D3822/D3822M-14,以充分理解测试设置、程序和结果要求。
Pneumatic Cord and Yarn Grips | Catalog Number 2714-031
Instron’s pneumatic cord and yarn grips provide a convenient method for clamping fiber, cord, yarns and fine wires to reduce the problem associated with testing these materials.
- 产品
- 06/11/2013
- 490.84 KB
2714-005 Pneumatic Cord and Yarn Grips
Pneumatic cord and yarn grips provide a convenient method for clamping fiber, cord, yarns and fine wires to reduce the problem associated with testing these materials. Rated capacity 1 kN.
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- 12/13/2012
- 778.59 KB
2714 Series Pneumatic Tire Cord Grips (2714-040)
Pneumatic cord and yarn grips are designed to have interchangeable clamping blocks that accommodate fiber or yarns made from conventional fibers to newly developed high-performance fibers. A specially designed horn with a smooth, highly-polished or controlled surface roughness finish and a contoured surface with a graduated cam allows for easy loading and a stress-reduced clamping area on the specimen. The clamping mechanism can be activated either automatically or through a footswitch to allow hands-free grip operation; this enables the operator to hold the specimen with both hands for easy loading. Pneumatic cord and yarn grips provide selectable clamping force to accommodate different materials and excellent follow-up action that compensates for decay of the holding force due to specimen creep.
- 产品
- 09/19/2013
- 497.09 KB
2712-05x Series Pneumatic Side Action Grips Data Sheet (50 N and 250 N)
The Instron 2712-05x Series Pneumatic Side-Action Grips offers a versatile gripping solution for a wide range of materials. Available in both 50 and 250 N options, the grip’s robust design is ideal for round (wires),fiber (mono-filaments), and flat specimens with or without shoulder.
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6800 Series Premier Testing Systems Brochure
Instron 6800 Series Universal Testing Systems provide unparalleled accuracy and reliability. Built on a patent-pending Operator Protect system architecture with an all-new Smart-Close Air Kit and Collision Mitigation features, the 6800 Series makes materials testing simpler, smarter, and safer than ever before.
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- 02/10/2020
- 4.15 MB
3400 Series Universal Testing Systems Brochure
Instron 3400 Series universal testing systems for tensile, compression, bend, and other material property tests.
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- 06/27/2022
- 2.69 MB
Bluehill Universal Brochure
Bluehill Universal is Instron’s advanced materials testing software, designed for intuitive touch interaction and streamlined workflows. It offers pre-loaded test methods, QuickTest for rapid setup, enhanced data exporting, and Instron Connect for direct service communication. Users of Bluehill 2 and Bluehill 3 can easily upgrade to the latest version for improved performance and usability.
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- 02/26/2017
- 3.76 MB


