X-ray detection of residual ceramic material inside hollow metal

Details X-ray detection of residual ceramic material inside hollow metal X-ray detection of residual ceramic material inside hollow metal

1992-04-10

1993-09-07

Seidel, Richard K.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164132, 164529, B22D 2900, B22D 4600

Patent

active

052420078

ABSTRACT:
A hollow metal article can be made by casting a metal article around a ceramic core and leaching the core from inside the article. These steps form a hollow space in the shape of the ceramic core. An x-ray detectable agent that has a higher x-ray density than the ceramic core is introduced into the core. Any core remaining inside the article after the leaching step is detected by making and analyzing an x-ray radiograph of the article.

REFERENCES:
patent: 2812562 (1957-11-01), Dalton
patent: 3617747 (1971-11-01), Wilkinson et al.
patent: 4073662 (1978-02-01), Borom
patent: 4802195 (1989-01-01), Wojcienchowski et al.
patent: 4809314 (1989-02-01), Steele et al.

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