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Title:
APPARATUS FOR TESTING WEAR OF FLUID BED
Document Type and Number:
Japanese Patent JPH10176981
Kind Code:
A
Abstract:

To accurately estimate in a short time a wear line of a member set in a fluid bed, by rotating a test piece in the fluid bed simulating an actual machine end enabling an accelerated test.

A test piece 10 is set at a test piece-fitting part 12 and a fluid material is deposited on a porous plate 4. The air is supplied from a gas injection pipe 3 to form a fluid bed 5. A heating apparatus 6 is started to turn a temperature in a container to be equal to that of an actual machine. When a temperature of the fluid bed 5 approaches the temperature of the actual machine, a cooling water is supplied from a cooling water feed apparatus 17 to cool a returning waste water and circulate the waste water as the cooling water. The amount of the cooling water to the fed is set so that a temperature inside the test pipe 10 becomes the same as the temperature of the actual machine. When a test state is equal to a state of the actual machine, a motor 15 is driven to rotate a rotary shaft 11. A revolution number is wet to make an average peripheral velocity of the test piece 10 approximately 5-15 times a flow velocity in the fluid bed 5. Since the test piece 10 has a larger peripheral velocity than the flow velocity of the gas, an accelerated test reproducing a wear given rise to the actual machine can be realized in a shot time.


Inventors:
Nanba, Kazuo
Application Number:
JP1996000338087
Publication Date:
June 30, 1998
Filing Date:
December 18, 1996
Export Citation:
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Assignee:
ISHIKAWAJIMA HARIMA HEAVY IND CO LTD
International Classes:
G01N3/56; F27B15/00; (IPC1-7): G01N3/56; F27B15/00
Attorney, Agent or Firm:
堀田 実 (外1名)