ASTM » ASTM D3822 紡織纖維拉伸性能

ASTM D3822 紡織纖維的拉伸特性

Pneumatic cord and yarn grips
Pneumatic cord and yarn grips ASTM D 3822 Graph

纖維的特性在紗的功能與美學特性上扮演一個重要的角色,對這些纖維的修改可以提升紗的功能,在紗的開發與後發展期間,拉伸測試可以定義它們的性質改變,提升各種材料的機械性質,拉伸測試 也可以做為製程品質管控來確認材料的規格降低不必要的廢料。

當測試較精細的紡織品時,定義最適合的測試配置是困難的,重要的是選擇讓你可以容易裝卸試片的夾置具。在某些例子中,使用有調整片之捲尺會使得試片更容易安裝,尤其是當試片太小而無法以肉眼看到時,假如使用適當的夾置具,試片滑移或是試片因為夾持的關係而失效的現象將不會發生
單股的纖維通常是非常脆弱且會在小力量時就會破壞,一個適當的荷重元   可以讓測試系統達到所需的精確性,在我們實驗室的研究,一個纖維試片在平均值 0.3 牛頓時失效,因為在 5500系列測試系統 執行此測試,我們建議使用5 牛頓的荷重元,使用 5500 系列測試系統,讀數的精確值為 +/- 0.5 % ,荷重元的容量可以到 1/250 ,對某些纖維來說,更大容量的荷重元是必須的
有許多種的夾置具適合單股纖維,假如試片夠長的話,我們建議使用 紗線的夾置具 ,因為可以運用絞盤減少試片過早的破壞。由以上所提,纖維對於紗線的夾置具來說太短了,因此可以使用我們的 5牛頓氣動式夾置具 ,重要的事,此夾置具重量不會多於荷重元容量的½,夾置具如果比荷重元容量的½還重的話,將會降低荷重元的工作負載範圍
我們建議看過 ASTM D3822 來了解在執行測試之前的必要條件,此方法包含了連續的或不連續的纖維與從紗或粗繩中所抽出的細絲
文獻

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.

  • 产品
  • 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.

  • 产品
  • 03/22/2022
  • 1.86 MB

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.

  • 产品
  • 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.

  • 产品
  • 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.

  • 产品
  • 02/26/2017
  • 3.76 MB