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Fiber monofilament high-temperature tensile property testing method and device

A technology of tensile properties and testing devices, applied in the direction of measuring devices, auxiliary controllers with auxiliary heating devices, using stable tension/compression to test material strength, etc., can solve the incompletely real response fiber tensile properties , It is not easy to test single-filament samples at high temperature online, and there are no problems such as fiber monofilaments, so as to ensure heating efficiency and temperature uniformity, improve test success rate, and improve accuracy.

Active Publication Date: 2021-03-23
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after research, the high-temperature tensile strength test of alumina fiber monofilaments all adopts heat treatment at high temperature, then cools to room temperature and then conducts tensile test at room temperature. Tensile properties, and because the fiber monofilament diameter is too small and brittle, it is difficult to prepare a long monofilament sample for high-temperature online testing, and the structure, size and heating efficiency of the high-temperature heating device for high-temperature online testing of fiber monofilaments are The key technology affecting high-temperature online testing. The preparation and loading method of monofilament samples are important factors affecting the efficiency of high-temperature online testing. At present, there is no testing standard and method for high-temperature online testing of fiber monofilament tensile properties in China.

Method used

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  • Fiber monofilament high-temperature tensile property testing method and device
  • Fiber monofilament high-temperature tensile property testing method and device
  • Fiber monofilament high-temperature tensile property testing method and device

Examples

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Embodiment 1

[0068] Such as image 3 As shown, the present embodiment provides a fiber monofilament high-temperature tensile performance testing device, including a tensile testing machine testing device, a high-temperature heating device 7 and a test and data processing system; wherein, the tensile testing machine testing device includes a sensor 5 and a sample mounting device; the sample mounting device includes an upper mounting end 6 and a lower mounting end 8; the mounting surfaces of the upper mounting end 6 and the lower mounting end 8 are symmetrical arcs. The tensile testing machine test device is placed on the base 9.

[0069] Specifically, the high-temperature heating device 7 adopts a C-shaped heating element coil group, and the coil group includes three sections, namely an upper section, a middle section, and a lower section, and each section is a C-shaped heating element coil; each section can be heated separately.

[0070] Specifically, the high-temperature heating device 7...

Embodiment 2

[0074] This embodiment provides a method for testing the high-temperature tensile properties of fiber monofilaments, including:

[0075] Step 1: Pick multiple fiber monofilaments from the fiber filaments to be tested, and place the multiple fiber monofilaments neatly across the sample preparation table in order to ensure that the two ends of the fiber monofilaments are naturally aligned in the width direction of the sample preparation table. stick out;

[0076] Step 2: Use an adhesive to drop a drop at both ends of the fiber monofilament that naturally protrudes from the sample preparation table, and wait for the adhesive at both ends of the fiber monofilament to form spherical beads and naturally solidify;

[0077] Step 3: Turn on the tensile testing machine and set the test program for use, hang the prepared fiber monofilament to the upper mounting end 6 and the lower mounting end 8 of the tensile testing machine testing device, and heat at high temperature The device is pl...

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Abstract

The invention discloses a method and a device for testing the high-temperature tensile property of a fiber monofilament, and solves the problem that the existing method cannot accurately measure the high-temperature tensile property of an alumina fiber monofilament. The fiber monofilament high-temperature tensile property testing device comprises a tensile testing machine testing device and a high-temperature heating device, wherein the tensile testing machine testing device comprises a sensor and a sample mounting device, the sample mounting device comprises an upper mounting end and a lowermounting end, and the mounting surfaces of the upper mounting end and the lower mounting end are both in a symmetrical circular arc shape. The method for testing the high-temperature tensile propertyof the fiber monofilament greatly improves the success rate and accuracy of testing.

Description

technical field [0001] The invention belongs to the technical field of fiber tensile performance testing, and in particular relates to a method and device for testing the high-temperature tensile performance of fiber monofilaments. Background technique [0002] Alumina fiber is an alumina fiber-like lightweight refractory material, its diameter is generally micron, and the surface of the fiber is smooth and cylindrical. Due to its high melting point, low density, high strength, and excellent high temperature resistance, alumina fiber is considered to be the fiber raw material for the next generation of wave-transmissive / heat-insulating integrated fiber-reinforced ceramic-based structural materials. It has a wide range of application values ​​in the fields of aluminum-based reinforced composite materials and heat and sound insulation materials. [0003] Effective evaluation of the tensile properties of alumina fibers is the key basis for ensuring the quality of composite mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18G01N3/02G05D23/22G05D23/32
CPCG01N3/18G01N3/02G05D23/22G05D23/32G01N2203/0017G01N2203/0067G01N2203/0226G01N2203/028G01N2203/0298
Inventor 张丽丽王华琼高增华焦大成李想张昊
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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