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PURPOSE: A plowshare for tractor with high wear resistance and toughness is provided to extend exchange span of plowshare for tractor. CONSTITUTION: The wear resistant plowshare for tractor comprises 0.1 to 0.18 wt.% of C, 1.0 to 1.7 wt.% of Mn, 4 to 7 wt.% of Ni, 10 to 14 wt.% of Cr, 2 to 4 wt.% of...

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Main Authors KOH, JE MAN, LEE, WON BAEK
Format Patent
LanguageEnglish
Korean
Published 09.11.2002
Edition7
Subjects
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Abstract PURPOSE: A plowshare for tractor with high wear resistance and toughness is provided to extend exchange span of plowshare for tractor. CONSTITUTION: The wear resistant plowshare for tractor comprises 0.1 to 0.18 wt.% of C, 1.0 to 1.7 wt.% of Mn, 4 to 7 wt.% of Ni, 10 to 14 wt.% of Cr, 2 to 4 wt.% of Mo, 0.5 to 1.5 wt.% of W, 2 to 6 wt.% of V, 0.1 to 0.18 wt.% of Nb, 0.02 to 0.025 wt.% of Mn, 0.1 to 0.5 wt.% of Zr, 0.005 to 0.01 wt.% of Bi, unavoidable impurities and a balance of Fe. 종래의 보습용 내 마모강은 인성을 주기 위해서 연강인 SM45C로 제작한 후 흙과 직접 접촉하는 날 부분만 침탄 처리하여 사용한다. 그러나 침탄 층이 마모되면 보습의 다른 부분은 내마모성이 낮기 때문에 마모속도가 급격히 빠르게 진행되어 보습을 자주 교체해 주어야 하는 폐단을 갖는다. 본 발명은 고 인성, 고 내마모성을 동시에 만족하는 보습용 급속소재를 소비자들에게 제공하되 경제적인 면과 기계적 성질을 모두 감안한 보습 제조에 가장 바람직한 조성을 갖는 주강 합금을 제공함으로써, 보습의 수명 연장에 따른 교체 시간 및 비용의 감소, 이로 인한 농가의 경제적 손실을 줄일 수 있도록 하는 것이다.
AbstractList PURPOSE: A plowshare for tractor with high wear resistance and toughness is provided to extend exchange span of plowshare for tractor. CONSTITUTION: The wear resistant plowshare for tractor comprises 0.1 to 0.18 wt.% of C, 1.0 to 1.7 wt.% of Mn, 4 to 7 wt.% of Ni, 10 to 14 wt.% of Cr, 2 to 4 wt.% of Mo, 0.5 to 1.5 wt.% of W, 2 to 6 wt.% of V, 0.1 to 0.18 wt.% of Nb, 0.02 to 0.025 wt.% of Mn, 0.1 to 0.5 wt.% of Zr, 0.005 to 0.01 wt.% of Bi, unavoidable impurities and a balance of Fe. 종래의 보습용 내 마모강은 인성을 주기 위해서 연강인 SM45C로 제작한 후 흙과 직접 접촉하는 날 부분만 침탄 처리하여 사용한다. 그러나 침탄 층이 마모되면 보습의 다른 부분은 내마모성이 낮기 때문에 마모속도가 급격히 빠르게 진행되어 보습을 자주 교체해 주어야 하는 폐단을 갖는다. 본 발명은 고 인성, 고 내마모성을 동시에 만족하는 보습용 급속소재를 소비자들에게 제공하되 경제적인 면과 기계적 성질을 모두 감안한 보습 제조에 가장 바람직한 조성을 갖는 주강 합금을 제공함으로써, 보습의 수명 연장에 따른 교체 시간 및 비용의 감소, 이로 인한 농가의 경제적 손실을 줄일 수 있도록 하는 것이다.
Author LEE, WON BAEK
KOH, JE MAN
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CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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