DRILL CHUCK NUT

The present invention relates to a high-carbon steel drill chuck nut made by use of powder metallurgic process and its manufacturing technology. The carbon content of the nut is 1.0-1.3%. It contains boles amounted to 9-14 percent of its volume, and these holes are infiltrated with a certain amount...

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Bibliographic Details
Main Authors GAO YANG, HAN JINGUI ET AL, SU QUANYONG
Format Patent
LanguageEnglish
Published 02.01.1991
Subjects
ALLOYS
CASTING
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Summary:The present invention relates to a high-carbon steel drill chuck nut made by use of powder metallurgic process and its manufacturing technology. The carbon content of the nut is 1.0-1.3%. It contains boles amounted to 9-14 percent of its volume, and these holes are infiltrated with a certain amount of lubricating oil. As the drill chuck nut is made by using this technological process, its material utilization coefficient can be up to 70% and the raw material cost can be greatly reduced. Both the mechanical property of parts can be improved and the nut may be self-lubricated during use, therefore the service life of parts can be effectively prolonged.
Bibliography:Application Number: CN1989105114