CHISEL FOR A BREAKER OF CONSTRUCTION EQUIPMENT WITH ENHANCED ABRASION RESISTANCE AND IMPACT RESISTANCE

PURPOSE: A chisel with improved shock resistance and abrasion resistance for a breaker is provided to optimize the composition and content ratio of alloy elements in a steel material and employ the optimum heat treatment technique suitable for the composition and content ratio. CONSTITUTION: A chise...

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Bibliographische Detailangaben
Hauptverfasser: KO, SEOUNG WOON, HA, TAE KWANG
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:PURPOSE: A chisel with improved shock resistance and abrasion resistance for a breaker is provided to optimize the composition and content ratio of alloy elements in a steel material and employ the optimum heat treatment technique suitable for the composition and content ratio. CONSTITUTION: A chisel(7a) for a breaker comprises carbon of 0.2-0.4 weight%, silicon of 0.2-0.9 weight%, manganese of 1.0-2.0 weight%, nickel of 0.5-3.0 weight%, chrome of 0.8-2.5 weight%, molybdenum of 0.1-0.8 weight%, boron of 0.0001-0.003 weight%, aluminum of 0.01-0.1 weight%, titanium of 0.01-0.1 weight%, vanadium of 0.1-0.25 weight%, and iron of the remaining amount.