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17th World Conference on Nondestructive Testing, 25-28 Oct 2008, Shanghai, China
肖克申的救赎
the NDT Study of Metal Composite Material Tube
Junming LIN
1
, Jilin REN
2
, Lu BAI
2
1. Eddysun(Xiamen) Electronic Co.,Ltd., Xiamen 361001, China
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2. Nanchang HangKong University， ，， ，the Key Laboratory of Nondestructive Testing, profound什么意思
Ministry of Education， ，， ，Nanchang Jiangxi, 330063, China
E-mail:************* Web:www. 怃然
broomstickAbstract
In view of the shedding problem of compound layer of composite material tubes in
metallurgical industry, UT，ET and the special-purpo nsors are ud to carry out the
testing of the parent metal and the compound layer. According to practical testing, the
conclusion can be obtained that this kind of integration method is advantageous for testing,
which is provided with accurate results, clear signals and convenient operation etc..
Keywords: ultrasonic technology, eddy current testing, composite material tube,
special-purpo nsors
1.Summary
At prent, interiorly, composite materials are mainly ud in aviation and spaceflight,
automobile industry, chemical industry, textile industry, machine manufacture and iatrology
delicatelyfield. It is cloly linked with people’s lives. Therefore, testing of composite materials is very
important. But if testing with a single testing method, the aim of testing the whole composite
material (including surface and compound layer) cannot be achieved. Thus instruments
integrated with multi-testing tools are needed to carry out testing.
2.Composite material
Composite material is a kind of combination material which adopting one kind of
material as matrix，and the other kind of material as reinforcement. Different materials can
learn from other’s advantageous performance and offt one’s disadvantageous aspects, so
cooperation effect can be achieved, which makes the synthetical performance of composite
环保材料英文material better than the original materials. Thus composite material can meet all kinds of
demands. Its matrix is divided into two kinds, including metal and non-metal. The often-ud
metal matrix includes aluminium, magnesium, copper, titanium or their alloy. Nonmetal
matrix mainly includes synthetic resin, rubber, porcelain, graphite and carbon etc. The
reinforcement material mainly includes fiberglass, fiber carbon, fiber boron, aramid fiber
reinforced plastic, fiber carborundum, fiber asbestus, crystal beard, tinl and hard granule.
Composite materials are mainly applied in the following domains. Firstly, it’s ud in
aviation and spaceflight field. On account of good heat stability and high specific strength
and specific stiffness of composite material, it can be ud to fabricate wings and front frames
of airplanes, antenna support configuration, solar battery wing and crust, crust of huge carrier
rocket, crust of engine and configuration component of space shuttles etc.. Secondly, it’s ud
in automobile industry. Since composite materials is provided with special libration damp
characteristic, it can decrea liberation and noi and has good anti- fatigue capability. It’s
easy to fix after damage and convenient for integral figuration. Thus it can be ud in the
fabrication of automobile bodywork, stresd components, transmission shaft, engine rack
and its interior components. Thirdly, it’s ud in chemical industry, textile industry,
machining manufacture fields. Materials compounded with fiber carbon and colophony are
provided with good corrosion resisting property. So it can be ud in fabrication of chemicaju
al
industrial equipment, textile machines, paper machines, copycat, high speed machine tool and
exactitude apparatus etc.. Fourthly, it’s ud in iatrology. Fiber carbon composite material is
provided with excellent mechanics performance and special characteristic of
rendipity
non-absorbability of X ray, so it can be ud to fabricate medical X-ray machine and
reshaping rack etc.. Fiber carbon composite material also has biology structure compatibility
and blood compatibility. It has good stability in biological circumstance. Thus it can be ud
