Apparatus for nondestructive testing of small blind bores utiliz

Details Apparatus for nondestructive testing of small blind bores utiliz Apparatus for nondestructive testing of small blind bores utiliz

1978-07-25

1980-08-26

Rolinec, Rudolph V.

Electricity: measuring and testing

Magnetic

By paramagnetic particles

324263, G01R 3300

Patent

active

042197724

ABSTRACT:
A pair of electrical prods along with a powder supply gun are incorporated in a single portable frame member which is easily insertable into a relatively small blind bore; prod tension against the bore wall is adjustable by varying spring plunger tension; incorporated in the apparatus is the ability to locate indications in all directions by provision of both linear and axial heads which interchange on the same frame or handle; powder is applied to the area to be inspected while current is flowing into the prods, and the powder gun can be rotated and retracted as required to provide full coverage of the area to be inspected with powder.

REFERENCES:
patent: 2440044 (1948-04-01), Greenslade
patent: 2587476 (1952-02-01), Huhn
patent: 2682032 (1954-05-01), Dehn et al.
"Magnetic Particle Testing of Commercial Forgings," pp. 7, 8, 11, 13, 14, 17, Forging Manufacturer's Assoc. Inc., 1944.

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