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高性能Cスキャン超音波探傷装置KUSS-130の開発と応用

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川崎製鉄技報

KAWASAKI STEEL GIHO Vol.24 (1992) No.1

高性能Cスキャン超音波探傷装置KUSS-130 の開発と応用

Development and Application of Ultrasonic C-Scan Test System with High Resolution, KUSS-130

高田 一(Hajime Takada) 市川 文彦(Fumihiko Ichikawa) 岡本 康司(Yasushi Okamoto) 緒方 貴玄(Takaharu Ogata)

要旨 : 鉄鋼製品および新素材の開発において,試作品の品質を詳細に評価し,品質の作り込みに 役立てることを目的として,超音波送受信子の走査の高精度化(位置決め精度 10μm)および 超音波の高周波数化(~100MHz)による分解能の向上を図ったCスキャン超音波探傷装置 を開発した。円筒状欠陥を模擬して,窒化珪素中に埋め込んだ直径10μm のタングステン ワイヤが検出可能であり,高検出能を有している。銅板接合セラミック基板の銅板とセラ ミックスとの接合不良,薄鋼板のスポット溶接部の接合不良,制振鋼板の樹脂と鋼板との 接合不良および炭素繊維複合材の層間剥離の検出などに適用し,良好な結果が得られた。 Synopsis :

The development of new steel products and new materials requires a detailed evaluation of the quality of trial products as a basis for selecting the optimal production method for commercial use. An ultrasonic C-scan test system was developed for this purpose. The system uses ultrasonic waves up to 100 MHz in frequency and scans the transducer with high position-reproducibility to achieve very high resolution. The system is capable of detecting a tungsten wire 10μm in diameter buried in a silicon nitride body to simulate a cylindrical flaw. Examples of the detection of internal flaws include (1) disbonding between copper and ceramic material in metallized ceramic substrate, (2) disbonding of spot-welds in steel sheet,(3) disbonding between steel and resin in steel-resin-steel anti-vibration composites, and (4) delaminations in carbon fiber composites.

(c)JFE Steel Corporation, 2003

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