MAKING METHOD AND APPARATUS OF BEARING RACE
This device includes continuous pre-heating furnace(20), high-frequency bar(30), dropping guard plate(40) of zigzag shape, feed conveyor(50)(60). This bearing race(10) provides a good crack prevention, and edge and surface(12) damage prevention of heat treated part(100) and tap hole(11), by setting...
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Main Author | |
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Format | Patent |
Language | English |
Published |
04.11.1996
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | This device includes continuous pre-heating furnace(20), high-frequency bar(30), dropping guard plate(40) of zigzag shape, feed conveyor(50)(60). This bearing race(10) provides a good crack prevention, and edge and surface(12) damage prevention of heat treated part(100) and tap hole(11), by setting several bearing races(10) in the upper direction of tap hole(11) on the feed conveyor(50), pre-heating the body of bearing race at 180 to 200deg.C, and continuous high frequency heating (annealing) the upper part with tap hole(11) by high frequency bar on the feed conveyor(60). |
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Bibliography: | Application Number: KR19940013137 |