公开(公告)号：KR1020040006158A

公开(公告)日：2004-01-24

申请号：KR1020020040136

申请日：2002-07-11

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/04

Abstract: PURPOSE: A composition for road wheel disk is provided which reduces thickness of road wheel by increasing hardness and realizes weight lightening by reducing weight of the road wheel disk at the same time, and a method for manufacturing the road wheel disk is provided. CONSTITUTION: The composition for road wheel disk comprises a main constituent of iron (Fe), 0.1 to 0.4 wt.% of carbon (C), 0.35 wt.% or less of silicon (Si), 0.1 to 2.0 wt.% of manganese (Mn), 0.03 wt.% or less of phosphorus (P), 0.05 wt.% or less of sulfur (S), 0.05 to 0.15 wt.% of vanadium (V), 0.005 to 0.03 wt.% of titanium (Ti), 0.025 to 0.045 wt.% of niobium (Nb), 0.01 to 0.03 wt.% of aluminum (Al) and 0.3 to 1.0 wt.% of chromium (Cr). The method for manufacturing road wheel disk comprises steps of performing center hole piercing on the center of the sheet type workpiece by blanking a sheet type workpiece having the composition comprising a main constituent of iron (Fe), 0.1 to 0.4 wt.% of carbon (C), 0.35 wt.% or less of silicon (Si), 0.1 to 2.0 wt.% of manganese (Mn), 0.03 wt.% or less of phosphorus (P), 0.05 wt.% or less of sulfur (S), 0.05 to 0.15 wt.% of vanadium (V), 0.005 to 0.03 wt.% of titanium (Ti), 0.025 to 0.045 wt.% of niobium (Nb), 0.01 to 0.03 wt.% of aluminum (Al) and 0.3 to 1.0 wt.% of chromium (Cr); maintaining heating of the center hole pierced workpiece at 930 deg.C for 15 min; performing press forming including stamping and burring by maintaining pressing of the workpiece for 15 sec after resting the heated workpiece on a press; cooling the product put on pallet by coercive blowing or natural cooling after removing a product from mold; piercing an air vent hole on the cooled product; and performing finish processing by trimming and shot blasting the air vent hole pierced product.

Abstract translation: 目的：提供一种用于车轮盘的组合物，其通过增加硬度降低了车轮的厚度，并且通过同时减小了车轮盘的重量来实现了减轻重量，并且提供了制造车轮盘的方法。 构成：用于车轮盘的组合物包括铁（Fe），0.1至0.4重量％的碳（C），0.35重量％或更少的硅（Si），0.1至2.0重量％的锰 （Mn），0.03重量％以下的磷（P），0.05重量％以下的硫（S），0.05〜0.15重量％的钒（V），0.005〜0.03重量％的钛 ），0.025〜0.045重量％的铌（Nb），0.01〜0.03重量％的铝（Al）和0.3〜1.0重量％的铬（Cr）。 制造车轮盘的方法包括以下步骤：通过冲裁具有包含铁（Fe）的主要成分，0.1至0.4重量％的碳（Fe）的组成的片状工件，对片状工件的中心进行中心孔穿孔 C），0.35重量％以下的硅（Si），0.1〜2.0重量％的锰（Mn），0.03重量％以下的磷（P），0.05重量％以下的硫（S） ，0.05〜0.15重量％的钒（V），0.005〜0.03重量％的钛（Ti），0.025〜0.045重量％的铌（Nb），0.01〜0.03重量％的铝（Al）和0.3 至1.0重量％的铬（Cr）; 在930℃下保持中心孔穿孔工件的加热15分钟; 通过在将加热的工件放置在压力机上之后保持工件的冲压15秒，进行包括冲压和翻边的冲压成型; 从模具中取出产品后，通过强制吹塑或自然冷却冷却放在托盘上的产品; 在冷却的产品上刺穿通气孔; 并通过修整和喷丸处理通风孔刺穿产品进行精加工。

公开(公告)号：KR1020010054260A

公开(公告)日：2001-07-02

申请号：KR1019990054993

申请日：1999-12-04

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/04

Abstract: PURPOSE: A steel pipe material is provided which further improves the strength of the steel pipe by coating and baking or low temperature tempering the manufactured steel pipe after manufacturing the steel pipe by fabricating a plate material into a pipe with a composition of steel pipe materials being different so as to have bake hardenability. CONSTITUTION: The bake hardenable steel pipe material comprises a main constituent of Fe, 0.0020 to 0.003 wt.% of C, 0.05 wt.% or less of Si, 0.6 to 1.20 wt.% of Mn, 0.07 to 0.12 wt.% of P, 0.012 wt.% or less of S and 0.02 to 0.06 wt.% of Al. The steel pipe manufactured using a bake hardenable steel pipe material has improved tensile strength and yield strength as well as improved strength through baking. The bake hardenable steel pipe material has more improved strength compared to the strength improvement obtained during fabricating of a pipe by coating and baking or low temperature tempering the steel pipe after manufacturing the bake hardenable steel pipe material into a plate material and manufacturing a steel pipe by fabricating the plate material into a pipe.

Abstract translation: 目的：提供一种钢管材料，其通过在制造钢管之后通过涂覆和烘烤或低温回火钢管的强度来进一步提高钢管的强度，该钢管通过将钢板材料制成管材，其中钢管材料的组成为 不同，以具有烘烤淬透性。 构成：可烘烤硬化钢管材料包括Fe的主要成分，C：0.0020〜0.003重量％，Si：0.05重量％以下，Mn：0.6〜1.20重量％，P：0.07〜0.12重量％ ，0.012重量％以下的S和0.02〜0.06重量％的Al。 使用可烘烤硬化钢管材料制造的钢管通过烘烤具有提高的拉伸强度和屈服强度以及改善的强度。 烘烤可硬化钢管材料与通过在将可烘烤硬化钢管材料制成板材制成钢板之后通过涂布和烘烤或钢管低温回火制造管道所获得的强度提高而获得的强度提高了 将板材制成管道。

公开(公告)号：KR1019990043795A

公开(公告)日：1999-06-15

申请号：KR1019970064837

申请日：1997-11-29

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C21D9/02

Abstract: 본 발명은 스프링의 재질로 사용하고자 특정 금속을 녹여 와이어 형태로 생성시키는 제 1 공정과, 인발과정을 통해 제조하고자 하는 스프링의 두께에 따른 스프링 선경에 맞추어 필링하게 되는 제 2 공정과, 상기 제 2 공정을 통해 인발 가공된 인발 강선을 특정 선경의 가공 부재에 권선하여 스프링의 형상을 갖도록 하는 제 3 공정과, 상기 제 3 공정을 통해 스프링의 형상을 갖추고 있는 강선을 소입/소려 공정의 열처리를 수행하는 제 4 공정을 포함하고 있는 코일 스프링 제조 방법에 관한 것으로 특히, 제 4 공정을 통해 열처리되어진 코일 스프링에 대하여 바렐링공정을 수행하는 제 5 공정과, 제 5 공정 이후 질소와 암모니아 및 이산화탄소의 비가 동일한 상태가 유지되는 상황속에서 제 4 공정의 소려공정보다 낮은 온도에서 소정시간동안 열처리하여 � ��질화한 후 수냉시키는 제 6 공정과, 제 6 공정에서 연질화되어진 코일 스프링에 대하여 제 6 공정에서와 동일한 온도의 수증기를 불어넣어주며 소정시간동안 유지시킨 후 유냉 또는 방냉(放冷)하는 제 7 공정을 포함하는 것을 특징으로 하는 코일 스프링 제조 방법을 제공하면, 열처리에 의한 기본강도를 확보 할 수 있으며, 저온의 연질화 처리와 저온의 수증기 처리를 통해 피로강도 향상 및 내식성 량상을 추가로 확보할 수 있는 효과가 있다.

公开(公告)号：KR1019990035464A

公开(公告)日：1999-05-15

申请号：KR1019970057267

申请日：1997-10-31

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C23G5/00

Abstract: 본 발명은 금속표면의 이물질이나 녹 등을 제거하여 원상 회복시키기 위한 장치에 관한 것으로서, 내부에 피재료(P)를 위치시키면서 밀폐된 공간을 제공하는 청정탱크(100)와, 상기 청정탱크(100)의 내부를 가열하는 히터와, 상기 청정탱크(100)의 내부를 진공상태로 만들기 위해 상기 청정탱크(100)에 연결된 진공형성수단과, 상기 청정탱크(100) 내부의 온도와 압력을 측정하여 상기 히터 및 진공형성수단을 제어하는 컨트롤러(110)로 구성된 표면 청정장치를 제공하여, 피재료(P) 표면의 이물질 오염이나 부식 등을 액체나 고체의 직접적인 접촉 없이 피재료(P) 주변의 고진공상태와 가열상태를 통해 제거하도록 함으로써, 피재료(P) 표면의 전 범위에 걸쳐서 고른 청정상태를 확보함은 물론 피재료(P)의 국부적인 손상을 방지할 수 있어 보다 정확한 원상회복이 � ��능하여 각종 실험결과의 신뢰성을 더욱 향상시키는 효과를 얻을 수 있다.

公开(公告)号：KR1020040020665A

公开(公告)日：2004-03-09

申请号：KR1020020052325

申请日：2002-08-31

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/00

CPC classification number: B60B21/02 ,  B60B3/04 ,  C21D9/34

Abstract: PURPOSE: A composition for automobile road wheel material having high surface hardness and high strength characteristics after heat treatment by properly containing a principal constituent of Fe, and C, Si, Mn, P, S, Al, Ti, Nb, Cr and B is provided, and a method for manufacturing automobile road wheel using the same is provided. CONSTITUTION: In a method for manufacturing an automobile road wheel(1) using a composition for road wheel material comprising a principal constituent of iron (Fe), 0.10 to 0.40 wt.% of carbon (C), 0.15 to 0.35 wt.% of silicon (Si), 0.35 to 2.0 wt.% of manganese (Mn), 0.03 wt.% or less of phosphorus (P), 0.03 wt.% or less of sulfur (S), 0.05 to 0.15 wt.% of aluminum (Al), 0.005 to 0.03 wt.% of titanium (Ti), 0.025 to 0.045 wt.% of niobium (Nb), 0.35 wt.% or less of chromium (Cr) and 0.005 wt.% or less of boron (B), the method is characterized in that the road wheel is manufactured by high frequency heat treating the road wheel rim using a high frequency heating unit(10) for high frequency heating an edge part of an end of the road wheel rim and a cooling unit for injecting cooling water onto the road wheel rim after manufacturing a road wheel rim(2) by molding processing the composition for road wheel material, wherein the method comprises a high frequency heat treatment process of heating the road wheel rim using the high frequency heating unit after mounting a fixed type heating coil(12) of the high frequency heating unit onto the outer and inner surfaces of the road wheel rim along the edge part of the end of the road wheel rim; and a cooling process of cooling the road wheel rim by injecting cooling water on a heating part of the road wheel rim through an injector after stationing a road wheel rim from which the heating coil is removed on the cooling unit.

Abstract translation: 目的：通过适当地包含Fe，C，Si，Mn，P，S，Al，Ti，Nb，Cr和B的主要成分，热处理后具有高表面硬度和高强度特性的汽车车轮材料组合物是 并且提供了一种使用其制造汽车车轮的方法。 构成：在使用包含铁（Fe）的主要成分，0.10〜0.40重量％的碳（C），0.15〜0.35重量％的碳（C）的车轮材料组合物的制造汽车车轮（1）的方法中， 硅（Si），0.35〜2.0重量％的锰（Mn），0.03重量％以下的磷（P），0.03重量％以下的硫（S），0.05〜0.15重量％的铝 Al，0.005〜0.03重量％的钛（Ti），0.025〜0.045重量％的铌（Nb），0.35重量％以下的铬（Cr）和0.005重量％以下的硼（B） 该方法的特征在于，通过使用高频加热单元（10）对车轮轮缘进行高频热处理来制造车轮，用于高频加热轮缘的端部的边缘部分和用于 通过对车轮材料的组合物进行模压加工制造车轮轮缘（2），将冷却水喷射到车轮轮缘上，其中该方法包括高频热处理过程 在将高频加热单元的固定式加热线圈（12）安装在公路轮缘的外表面和内表面上之后，使用高频加热单元沿着轮缘的端部的边缘部分 ; 以及通过在将加热线圈从其从所述冷却单元上从其中移除的路轮轮缘放置在所述车轮轮缘的加热部分上之后通过喷射器注入冷却水来冷却所述轮缘的冷却过程。

公开(公告)号：KR1020030005591A

公开(公告)日：2003-01-23

申请号：KR1020010040953

申请日：2001-07-09

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: B21D26/033

CPC classification number: B21D26/02 ,  B21D37/16

Abstract: PURPOSE: A hydroforming method is provided to improve hydroformability by accurately controlling heating temperature and time and controlled cooling the heated part, thereby softening the hardened structure of a material to be formed when heating a work hardened part of the material under certain conditions. CONSTITUTION: The hydroforming method by heat treatment on a part to be worked comprises the steps of partially heat treating the part to be worked of a material that is preworked, prebended and preformed before hydroforming process; softening the material by relieve cooling, coercive blowing leaving alone and quenching the part to be worked of the material after the heat treatment; and hydroforming the softened material, wherein the heat treatment includes high frequency heat treatment, torch heat treatment, laser heat treatment, and near infrared ray irradiation heat treatment, the heat treatment is performed in the heating temperature range of 600 to 950 deg.C for 5 seconds to 10 minutes, and the quenching is selected from water quenching, water soluble quenching solution cooling and oil quenching.

Abstract translation: 目的：提供液压成形方法，通过精确控制加热温度和时间并控制加热部件的冷却，提高加氢成形性能，从而软化在某些条件下加热材料的加工硬化部分时要形成的材料的硬化结构。 构成：通过对待加工部件进行热处理的液压成形方法包括以下步骤：在液压成型过程之前对预加工，预弯曲和预成型的材料进行部分热处理; 通过减轻冷却来软化材料，单独进行矫顽吹，并在热处理后淬火待加工的部件; 对软化材料进行液压成型，其中，热处理包括高频热处理，焊炬热处理，激光热处理和近红外线照射热处理，在600〜950℃的加热温度范围内进行热处理， 5秒至10分钟，淬火选自水淬，水溶淬火液冷却和油淬。

公开(公告)号：KR1020030000456A

公开(公告)日：2003-01-06

申请号：KR1020010036239

申请日：2001-06-25

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/04

Abstract: PURPOSE: A road wheel composition comprising Fe as a principal constituent and C, Si, Mn, Ti, Nb and Cu blended in an appropriate ratio, and a method for heat treating the material by forming a material having the above composition are provided. CONSTITUTION: The road wheel composition comprises 0.05 to 0.2 wt.% of C, 0.01 to 0.3 wt.% of Si, 0.1 to 2.0 wt.% of Mn, 1.0 to 2.0 wt.% of Cu, 0.005 to 0.03 wt.% of Ti and 0.025 to 0.045 wt.% of Nb. A method for heat treating a road wheel comprises the processes of forming a material having a composition comprising 0.05 to 0.2 wt.% of C, 0.01 to 0.3 wt.% of Si, 0.1 to 2.0 wt.% of Mn, 1.0 to 2.0 wt.% of Cu, 0.005 to 0.03 wt.% of Ti and 0.025 to 0.045 wt.% of Nb; heating the formed material at a temperature of 450 to 600 deg.C for 5 to 40 minutes; and leaving alone to cool the heated material, or blowing air to forcibly cool the heated material.

Abstract translation: 目的：提供以Fe为主要成分和以适当比例混合的C，Si，Mn，Ti，Nb和Cu的路线轮组合物，以及通过形成具有上述组成的材料对材料进行热处理的方法。 构成：车轮组合物包含0.05〜0.2重量％的C，0.01〜0.3重量％的Si，0.1〜2.0重量％的Mn，1.0〜2.0重量％的Cu，0.005〜0.03重量％ Ti和0.025〜0.045重量％的Nb。 一种用于对车轮进行热处理的方法包括形成具有0.05至0.2重量％的C，0.01至0.3重量％的Si，0.1至2.0重量％的Mn，1.0至2.0重量％ ，Cu：0.005〜0.03重量％，Nb：0.025〜0.045重量％ 在450〜600℃的温度下加热成形材料5〜40分钟; 并单独冷却加热的材料，或吹送空气以强制冷却加热的材料。

公开(公告)号：KR100257023B1

公开(公告)日：2000-08-01

申请号：KR1019970064036

申请日：1997-11-28

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: B60R19/00

Abstract: PURPOSE: A manufacturing process is provided to lighten steel with peeling through high combining interstitial free steel plate and surface heat treating method and intensifying and to omit painting process by improving corrosion resistance for promoting process merging. CONSTITUTION: An interstitial free steel plate is used which is a metal maximizing acidifying effect since the structure consists of ferrite. Also, extrusion molding is excellent to enable tempering work. Acidifying process is conducted by nitrifying N carrier gas to CO and NH3 and steam-processing for cooling with oil. The acidifying process is performed for 60-180 minutes at 560-590deg.C. In reaction condition, if less than 560deg.C of reaction temperature, ammonium composition and nitric atom dispersion become slower for inhibiting nitrification. Activated nitric gas becomes saturation in case of over 590deg.C and Fe2N compound of high brittleness is created. In case of less than 60 min of reaction, nitric atom dispersion amount is less so creation of nitric layer is not formed. Thereby, high intensity peeling steel bumper is excellent in pressurizing molding property and precise tempering work with 30% lightened steel and 80-100% enhanced raw cost saving effect.

Abstract translation: 目的：提供一种制造工艺，通过高组合无间隙钢板和表面热处理方法剥离钢，并通过提高耐腐蚀性来加强和省略喷漆工艺，促进加工合并。 构成：使用无间隙钢板，由于铁素体结构由铁素体组成，因此是最大化的金属化金属。 此外，挤出成型是优异的，以使回火工作。 酸化过程通过将N载气硝化为CO和NH3并进行蒸汽处理以用油冷却来进行。 酸化过程在560-590℃下进行60-180分钟。 在反应条件下，如果反应温度低于560℃，铵组成和硝酸分散体对于抑制硝化作用变慢。 超过590℃时活性硝酸气饱和，产生高脆性Fe2N化合物。 在反应少于60分钟的情况下，硝酸分散量较少，因此不形成硝酸盐的形成。 因此，高强度剥离钢保险杠具有优异的加压成型性能和精确的回火工作，30％的轻钢和80-100％的增加的原始成本节省效果。

公开(公告)号：KR1019990043056A

公开(公告)日：1999-06-15

申请号：KR1019970064036

申请日：1997-11-28

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: B60R19/00

Abstract: 본 발명은 고강도 박육 스틸제 범퍼의 제조공정에 관한 것으로서, 더욱 상세하게는 고장력 강판 또는 연강(SPHC, SAPH)을 구부림(bending) 또는 타출(stamping) 후 용접하던 종래의 기술과는 달리, 고연성 강판(interstitial free steel plate)을 타출 및 용접을 한 후 산질화 처리를 하여 범퍼를 제조함으로써, 강도를 향상시킴은 물론, 강을 박육화 할 수 있게 되어 강을 경량화할 수 있고, 또한 내식성이 향상되어 도장처리 공정을 생략할 수 있어 공정합리화를 도모할 수 있도록 개선된 고강도 박육 스틸제 범퍼의 제조공정에 관한 것이다.

公开(公告)号：KR1019990035466A

公开(公告)日：1999-05-15

申请号：KR1019970057269

申请日：1997-10-31

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/04

Abstract: 본 발명은 상기와 같은 저탄소 합금강 소재를 사용하고 소재내에 소입성이 큰 합금원소를 첨가시킴으로써 구상화 소둔 열처리 및 소입.소려 열처리를 생략할 수 있어 구상화 소둔 열처리 및 소입.소려 열처리로 발생하는 에너지 소모, 표면탈탄 및 열처리 변형을 방지할 수 있어 공정의 합리화, 생산성 향상 및 품질 향상을 꾀할 수 있는 승용차용 리어(Rear) 스핀들의 제조방법 및 이에 사용되는 저탄소 합금강 소재에 관한 것이다.
본 발명의 승용차용 리어(Rear) 스핀들의 제조방법에 사용되는 저탄소 합금강 소재는 탄소(C) 0.2 내지 0.26중량%, 규소(Si) 0.05 내지 0.15중량%, 망간(Mn) 0.6 내지 1.8중량%, 인(P) 0.03중량% 이하, 유황(S) 0.03중량% 이하, 붕소(B) 0.005중량% 이하, 티타늄(Ti) 0.005 내지 0.03중량%, 크롬(Cr) 0.15 내지 0.40중량%, 니오븀(Nb) 0.05중량% 이하, 알루미늄(Al) 0.015 내지 0.025중량%를 포함한다.
본 발명의 승용차용 리어(Rear) 스핀들의 제조방법은 소재를 구상화 소둔 처리, 산세척, 윤활처리, 냉간단조, 기계가공, 소입.소려 처리, 고주파 처리로 이루어지는 종래의 제조방법에 있어서, 상기의 소재를 사용하여 구상화 소둔 처리 및 소입.소려 처리를 생략하는 것을 특징으로 한다.