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ZHU Pailong
Department of Mechanical and
Electrical Engineering,
Guangdong Industry Technical College, Guangzhou 510300, China
ZHOU Jinjin
School of Mechanical Engineering,
Dalian University of Technology,
Dalian 116023, China
TANG Dianbo
Research and Development Center,
Guangzhou Hitachi Escalator Co. Ltd,
Guangzhou 510430, China
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INVESTIGATION ON NEW TYPE OF
DOUBLY BLENDING ABRASIVE
WATER JET NOZZLE SYSTEM
WITH HIGHER PERFORMANCE
Abstract:
Based on the two existing abrasive water-jet (AWJ) systems, the dia-jet (or pre-jet) and the post-jet, a new type of abrasive water-jet system is put forward, which combines the dia-jet’s advantage, low operating system pressure, slender stream jet, and more concentrative abrasive in the blended stream, with merits of post-jet, the less sophisticate apparatus, successive supply of abrasives. The theoretic analysis is brought out in detail, and the nozzle system structure is concisely illustrated. Its relevant experiment results are demonstrated, proving that this new system is effective in various aspects, enlarging penetrating capability without raising system pressure, saving machining power supply, lessening energy loss, etc.
Key words:
Abrasive water-jet (AWJ) Cutting performance Doubly blending tube Dia-jet
System Post-jet system Energy efficiency
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