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Abstract

In order for the working status of the aluminum alloyed hydraulic valve body to be controlled in actual conditions, a new friction and wear

design device was designed for the cast iron and aluminum alloyed valve bodies comparison under the same conditions. The results

displayed that: (1) The oil leakage of the aluminum alloyed hydraulic valve body was higher than the corresponding oil leakage of the iron

body during the initial running stage. Besides during a later running stage, the oil leakage of the aluminum alloyed body was lower than

corresponding oil leakage of the iron body; (2) The actual oil leakage of different materials consisted of two parts: the foundation leakage

that was the leakage of the valve without wear and wear leakage that was caused by the worn valve body; (3) The aluminum alloyed valve

could rely on the dust filling furrow and melting mechanism that led the body surface to retain dynamic balance, resulting in the valve

leakage preservation at a low level. The aluminum alloy modified valve body can meet the requirements of hydraulic leakage under

pressure, possibly constituting this alloy suitable for hydraulic valve body manufacturing.

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Authors and Affiliations

Li Rong
Chen Lunjun
Su Ming
Zeng Qi
Liu Yong

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