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1. 发明公开

KR1020070111439A 비시안계 염욕으로 질화된 금속 无效
标题翻译：不锈钢盐浴制造的钢铁
公开(公告)号：KR1020070111439A
公开(公告)日：2007-11-21
申请号：KR1020070112581
申请日：2007-11-06
申请人： 일진제강(주)
发明人： 정희원 , 이동녕 , 박영준 , 김동삼 , 오규환 , 심인충
IPC分类号： C23C8/50 , C23C8/48
CPC分类号： C23C8/50
摘要： A metal nitrided using a non-cyan based salt bath is provided, a metal of which an inner part as well as a surface are nitrided is provided, and a nitrided metal having improved tensile strength and hardness compared to a metal on which salt bath nitriding is not performed is provided. A method for salt bath nitriding of metal comprises the steps of: injecting a non-cyan based salt into a salt bath; melting the salt to maintain the salt at a predetermined temperature; and nitriding the metal in the salt bath. The non-cyan based salt includes at least one of NaNO3, NaNO2, KNO3, KNO2, and Ca(NO3)2. The metal nitriding step is performed at a molten salt bath temperature of 400 to 700 deg.C for a dipping time of 1 minute to 24 hours. A nitrided pure iron is characterized in that pure iron nitrided in at least one salt bath of KNO3, KNO2, Ca(NO3)2, NaNO3 and NaNO2 has a nitriding thickness of 0.1 to 3.0 mm.
摘要翻译：提供了使用非青色盐浴进行氮化处理的金属，其内部部分和表面被氮化，并且与金属氮化氮化金属相比，具有改善的拉伸强度和硬度的氮化金属不提供。金属盐浴氮化方法包括以下步骤：将非氰基盐注入盐浴中; 使盐熔化以将盐保持在预定温度; 并在盐浴中渗透金属。非氰基盐包括NaNO 3，NaNO 2，KNO 3，KNO 2和Ca（NO 3）2中的至少一种。金属氮化步骤在熔融盐浴温度为400-700℃的条件下进行浸渍时间为1分钟至24小时。氮化纯铁的特征在于，在至少一种KNO 3，KNO 2，Ca（NO 3）2，NaNO 3和NaNO 2的盐浴中氮化的纯铁的氮化厚度为0.1〜3.0mm。

2. 发明公开

KR1020080088554A 질화 금속 无效
标题翻译：金属氮化物
公开(公告)号：KR1020080088554A
公开(公告)日：2008-10-02
申请号：KR1020080089324
申请日：2008-09-10
申请人： 일진제강(주)
发明人： 정희원 , 이동녕 , 박영준 , 김동삼 , 오규환 , 심인충
IPC分类号： C23C8/50 , C23C8/48
摘要： A metal nitride is provided to harden a surface of steel and obtain abrasion resistance and corrosion resistance by increasing hardness and tensile strength of the metal through salt nitriding. A metal nitride is nitrided in a salt bath having at least one of KNO3, KNO2, Ca(NO3)2, NaN03, and NaNo2 in which a base is a non-cyanogen molten salt. The base is carbon steel or IF steel. The metal nitride has a nitride layer which is formed by nitride diffusion. A compound layer having iron and nitrogen is not contacted in the surface of the metal nitride.
摘要翻译：提供金属氮化物以通过增加通过盐氮化的金属的硬度和拉伸强度来硬化钢的表面并获得耐磨性和耐腐蚀性。在具有KNO 3，KNO 2，Ca（NO 3）2，NaNO 3和NaN 2）中的至少一种的盐浴中氮化金属氮化物，其中碱是非氰化熔盐。基座为碳钢或IF钢。金属氮化物具有通过氮化物扩散形成的氮化物层。具有铁和氮的复合层在金属氮化物的表面不接触。

3. 发明授权

KR100812971B1 금속의 염욕 질화방법 및 그 방법으로 제조된 금속 有权
标题翻译：通过其方法制造的盐浴和钢制钢的氮化方法
公开(公告)号：KR100812971B1
公开(公告)日：2008-03-13
申请号：KR1020060049077
申请日：2006-05-30
申请人： 일진제강(주)
发明人： 정희원 , 이동녕 , 박영준 , 김동삼 , 오규환 , 심인충
IPC分类号： C23C8/50 , C23C8/48
CPC分类号： C23C8/50
摘要： 본 발명은 비시안계염을 이용하여 금속의 염욕 질화방법 및 그 방법으로 제조된 금속에 관한 것으로서, 염욕 속에 염을 넣는 단계, 상기 비시안계염을 용융시켜 일정 온도로 유지시키는 단계 및 용융된 상기 비시안계염 내에서 금속을 질화시키는 단계를 포함하는 것에 그 기술적인 특징이 있다.
따라서, 본 발명은 종래의 환경 오염문제 및 처리비용문제를 해결하고, 이와 더불어 금속의 질화 깊이를 종래의 질화방법으로 질화처리된 강보다 2배 내지 6배로 증가시킬 수 있어 금속의 내부까지 질화시킬 수 있으며, 금속의 경도 및 인장 강도를 향상시켜 경량 고강도 자동차 부품 및 각종 구조재등 여러분야에 적용 가능하다.
염욕, 질화, 비시안계염

4. 发明公开

KR1020070087475A 금속의 염욕 질화방법 및 그 방법으로 제조된 금속 有权
标题翻译：盐浴中钢铁的制备方法及其制备方法
公开(公告)号：KR1020070087475A
公开(公告)日：2007-08-28
申请号：KR1020060049077
申请日：2006-05-30
申请人： 일진제강(주)
发明人： 정희원 , 이동녕 , 박영준 , 김동삼 , 오규환 , 심인충
IPC分类号： C23C8/50 , C23C8/48
CPC分类号： C23C8/50
摘要： A method for nitriding of a metal using a non-cyan based salt and the metal manufactured by the method, and a nitriding method of a metal in a salt bath which can be nitrided even into the interior of the metal and the metal manufactured by the method are provided. A nitriding method of metal in a salt bath comprises the steps of: injecting at least one salt of KNO3, KNO2, Ca(NO3)2, NaNO3 and NaNO2 into the salt bath; melting the salt and holding the molten salt at a temperature of 400 to 700 deg.C; and nitriding the metal in the salt bath by dipping the metal into the salt bath for 1 minute to 24 hours. The metal is pure iron or steel. In a metal nitrided in a salt bath containing at least one salt of KNO3, KNO2, Ca(NO3)2, NaNO3 and NaNO2, the metal is characterized in that the metal is pure iron, and the pure iron is nitrided to a depth of 0.1 to 3.0 mm from the surface thereof. In a metal nitrided in a salt bath containing at least one salt of KNO3, KNO2, Ca(NO3)2, NaNO3 and NaNO2, the metal is characterized in that the metal is steel, and the steel is nitrided to a depth of 0.1 to 3.0 mm from the surface thereof. The steel is ultra-low carbon steel, low carbon steel, medium carbon steel, high carbon steel, alloy steel, or IF steel.
摘要翻译：使用非青色盐和通过该方法制造的金属对金属进行氮化的方法以及即使在金属制的金属和金属制的金属中的金属的氮化氮化方法，提供方法。盐浴中金属的氮化方法包括以下步骤：将至少一种KNO 3，KNO 2，Ca（NO 3）2，NaNO 3和NaNO 2的盐注入盐浴中; 熔化盐并将熔融盐保持在400-700℃的温度; 并通过将金属浸入盐浴中浸渍盐浴中的金属1分钟至24小时。金属是纯铁或钢。在含有KNO 3，KNO 2，Ca（NO 3）2，NaNO 3和NaNO 2的至少一种盐的盐浴中氮化的金属中，金属的特征在于金属是纯铁，纯铁渗氮到距离其表面0.1至3.0mm。在含有至少一种KNO 3，KNO 2，Ca（NO 3）2，NaNO 3和NaNO 2的盐的盐浴中氮化的金属中，金属的特征在于金属是钢，并且钢被氮化至0.1〜距离其表面3.0mm。钢是超低碳钢，低碳钢，中碳钢，高碳钢，合金钢或IF钢。

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