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公开(公告)号：KR101316248B1
公开(公告)日：2013-10-08
申请号：KR1020110053074
申请日：2011-06-02
CPC classification number: C21D7/13 , C21D1/26 , C21D11/005 , C21D2211/009 , C22C38/02 , C22C38/04 , C22C38/24
Abstract: 강재를 고온압축 변형하는 열간단조단계; 상기 열간단조단계에 의한 열간단조체를 저온의 펄라이트 변태구간으로 급속냉각하는 급속냉각단계; 상기 급속냉각단계에 의해 과냉된 열간단조체를 저온의 펄라이트 변태구간에서 등온으로 유지시키는 등온변태단계; 및 상기 등온변태단계를 거친 열간단조체를 공랭하는 공랭단계;를 포함하는 초미세립 펄라이트 조직을 갖는 비조질강의 제조방법과 그에 의한 비조질강이 소개된다.
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公开(公告)号：KR1020130042699A
公开(公告)日：2013-04-29
申请号：KR1020110106724
申请日：2011-10-19
Abstract: PURPOSE: A slag and dross filter for cast iron added aluminium is provided to improve castability by preventing a ceramic filter from being blocked and to improve quality of the cast iron by filtering minute impurity. CONSTITUTION: A slag and dross filter for cast iron added aluminium comprises a dross filter(10) and a ceramic filter(20). The dross filter is installed to filter oxidation dross in the melted cast iron added the aluminium. The ceramic filter is installed at a lower part of the dross filter and filters the oxidation dross and slag passing through the dross filter.
Abstract translation: 目的：提供一种用于铸铁添加铝的炉渣和渣滓过滤器，以通过防止陶瓷过滤器被堵塞并通过过滤微量杂质来改善铸铁的质量来改善浇铸性。 构成：用于铸铁添加铝的炉渣和渣滓过滤器包括渣滓过滤器（10）和陶瓷过滤器（20）。 安装了渣滓过滤器，以过滤氧化渣，在熔化的铸铁中加入铝。 陶瓷过滤器安装在渣滓过滤器的下部，并过滤通过渣滓过滤器的氧化渣和渣。
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公开(公告)号：KR1020110063107A
公开(公告)日：2011-06-10
申请号：KR1020090120051
申请日：2009-12-04
Abstract: PURPOSE: A mold for gravity pressure casting is provided to form a separate gas discharging hole at one side of a female mold connected to a turbine cavity, to prevent gas generated by a molten metal and inserted in a lower scroll part from mixing with a molten metal and inserted in a upper scroll part, and to prevent a surface detaching phenomenon. CONSTITUTION: The mold for gravity pressure casting composed of a support mold(15); a gate swirl core(17); a feeder mold; an exhaust runner swirl core(23); a twin scroll part swirl core(25); and a bypass part swirl core(27). The support mold is installed between a female mold and a male mold. The gate swirl core forms a runner interlinking a cavity of an exhaust manifold and a cavity of turbine housing. The gate swirl core forms a plurality of gates. The plurality of gates connects the cavity lower part of the turbine housing. The feeder mold forms a feeder head hole connecting to the cavity of the exhaust manifold. The exhaust runner swirl core forms an exhaust runner part of the exhaust manifold. The twin scroll part swirl core and the bypass part swirl core form a twin scroll part and bypass part respectively.
Abstract translation: 目的：提供一种用于重力压力铸造的模具，以在连接到涡轮空腔的阴模的一侧形成单独的气体排放孔，以防止熔融金属产生的气体并插入下部涡卷部分中与熔融的 金属并插入上部涡卷部分，并防止表面分离现象。 构成：由支撑模具（15）组成的重力压铸模具; 门旋流芯（17）; 喂料模具; 排气流道涡流芯（23）; 双涡旋部分涡流芯（25）; 和旁路部分涡流芯（27）。 支撑模具安装在阴模和阳模之间。 闸门涡流芯形成一个连接排气歧管的空腔和涡轮机壳体的空腔的转轮。 门漩涡芯形成多个门。 多个门连接涡轮机壳体的腔下部。 进料器模具形成连接到排气歧管的空腔的进料头。 排气流道涡流芯形成排气歧管的排气流道部分。 双涡卷部分涡流芯和旁路部分涡流芯分别形成双涡旋部分和旁路部分。
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公开(公告)号：KR1020100027887A
公开(公告)日：2010-03-11
申请号：KR1020080086979
申请日：2008-09-03
Inventor： 고영상
CPC classification number: C22C38/12 , C21D8/0205 , C21D2211/002 , C22C38/02 , C22C38/04
Abstract: PURPOSE: Steel for forging and a forged steel product are provided to improve the strength by employing Nb(Niobium) precipitate and workability by forming a uniform bainite structure. CONSTITUTION: Steel for forging comprises C(Carbon) 0.2~0.4 wt.%, Si(Silicon) 0.035 wt.%, Mn(Manganese) 0.5~1.0 wt.%, P(Phosphorus) 0.03 wt.% or less, S(Sulfur) 0.03 wt.% or less, V(Vanadium) 0.01~0.05 wt.%, Nb 0.05~0.50 wt.%, and the rest iron and other inevitable impurities. A forged steel product is produced by forging the steel and then cooling the forged steel in three stages of different cooling rates and has a bainite structure.
Abstract translation: 目的：提供锻造用钢和锻钢产品，通过形成均匀的贝氏体组织，通过使用Nb（铌）析出物和加工性来提高强度。 构成：锻造用钢包含C（碳）0.2〜0.4重量％，Si（硅）0.035重量％，Mn（锰）0.5〜1.0重量％，P（磷）0.03重量％以下S（ 硫）0.03重量％以下，V（钒）0.01〜0.05重量％，Nb 0.05〜0.50重量％，其余为铁等不可避免的杂质。 通过对钢进行锻造，然后以不同冷却速度的三个阶段对锻钢进行冷却，制造锻造钢产品，并具有贝氏体组织。
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公开(公告)号：KR1020090061409A
公开(公告)日：2009-06-16
申请号：KR1020070128415
申请日：2007-12-11
CPC classification number: C22C37/10 , C21D5/00 , C22C2202/00 , F16C7/00
Abstract: A cast iron composition for connecting rod and a connecting rod manufacturing method using the same are provided to make the matrix structure of a material into bainite structure by adding Mo, Ni, and Cu, thereby improving workability. A connecting rod manufacturing method includes a step of cooling after casting cast iron composition. The cooling step includes cooling from 930°C to 300~400°C at the speed of 30~50°C/sec, maintaining at 300~400°C for 10~30 minutes, and cooling to the normal temperature at the speed of 5~15°C/min. The cast iron composition is composed of C 2.8~3.8 weight%, Si 2.2~3.2 weight%, Mn 0.20~0.60 weight%, S 0.010~0.020 weight%, Ni 0.04~0.12 weight%, Mo 0.4~1.2 weight%, P 0.05 weight% or less, the residual Fe, and inevitable impurity.
Abstract translation: 提供一种用于连杆的铸铁组合物和使用其的连杆制造方法，通过添加Mo，Ni和Cu使材料的基体结构成贝氏体结构，从而提高加工性。 连杆制造方法包括铸造铸铁组合物之后的冷却步骤。 冷却步骤包括以30〜50℃/秒的速度从930℃至300〜400℃的冷却，在300〜400℃下保持10〜30分钟，以...的速度冷却至常温 5〜15℃/分钟。 铸铁组成由C 2.8〜3.8重量％，Si 2.2〜3.2重量％，Mn 0.20〜0.60重量％，S 0.010〜0.020重量％，Ni 0.04〜0.12重量％，Mo 0.4〜1.2重量％，P 0.05重量％以下，残留的Fe和不可避免的杂质。
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Patent Agency Ranking
公开(公告)号：KR1020090049638A
公开(公告)日：2009-05-19
申请号：KR1020070115808
申请日：2007-11-14
CPC classification number: C22C38/32 , C21D6/002 , C21D9/30 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/24 , C22C38/28 , C22C38/38
Abstract: 본 발명은 가공성 및 내구성이 우수한 베이나이트 비조질강 및 이를 이용한 크랭크샤프트 제조 방법에 관한 것으로서, 더욱 상세하게는 높은 피로강도를 확보하고 동시에 가공성을 확보할 수 있으며, 강도 및 수익성 측면에서 유리한 효과를 가져올 수 있는 가공성 및 내구성이 우수한 베이나이트 비조질강 및 이를 이용한 크랭크샤프트 제조 방법에 관한 것이다.
이를 위해 본 발명은 철(Fe)을 주성분으로 하고, 여기에 탄소(C) 0.2~0.3 중량%, 규소(Si) 0.5~1.5 중량%, 망간(Mn) 0.1~2.0 중량%, 크롬(Cr) 0.5~1.5 중량%, 몰리브덴(Mo) 0.05~0.3 중량%, 알루미늄(Al) 0.0005~0.03 중량%, 황(S) 0.05~0.10 중량%, 티탄늄(Ti) 0.02~0.05 중량%, 바나듐(V) 0.15~0.24 중량%, 보론(B) 0.002~0.005 중량%가 함유된 베이나이트 비조질강 및, 이를 이용하여 소재를 1150~1250℃까지 가열하여 열간 단조를 실시하는 단계와; 이후 냉각속도를 2~3℃/sec로 하여 350~450℃까지 냉각하여 베이나이트 조직을 생성시키는 단계와; 350~450℃에서 10~20분 정도 유지한 후 상온(25℃)까지 공냉하는 단계; 로 이루어지는 것을 특징으로 하는 베이나이트 비조질강을 이용한 크랭크샤프트 제조 방법을 제공한다.
베이나이트, 비조질강, 크랭크샤프트, 제조 방법-
公开(公告)号：KR1020080013055A
公开(公告)日：2008-02-13
申请号：KR1020060074052
申请日：2006-08-07
Applicant: 현대자동차주식회사
Abstract: A fillet rolling-method of a crank shaft for a vehicle is provided to prevent the reduction of strength of an engine derived from Bauschinger effect by heating a working part at a suitable temperature. A crank shaft is rotated. A predetermined load is applied to a pin fillet unit(12) of a crank shaft. The load applied to the pin fillet unit by using a pressing roller(16) is in the range of about 300kgf to 950kgf. The pin fill unit is heated at a predetermined temperature by using a high-frequency induction coil(15). The temperature used to heat the pin fill unit is in the range of 168 degrees centigrade to 309 degrees centigrade. The above selected area strengthening scheme strengthens a portion of the pin fillet unit in driving.
Abstract translation: 提供一种用于车辆的曲轴的圆角滚动方法，以通过在适当的温度下加热工作部件来防止由Bauschinger效应引起的发动机的强度的降低。 曲轴旋转。 预定的载荷被施加到曲轴的销圆角单元（12）。 通过使用加压辊（16）施加到销角单元的负载在约300kgf至950kgf的范围内。 通过使用高频感应线圈（15）将针脚填充单元加热到预定温度。 用于加热针脚填充单元的温度在168摄氏度到309摄氏度的范围内。 上述选择的区域强化方案加强了销子部分行驶中的一部分。
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公开(公告)号：KR1020020084590A
公开(公告)日：2002-11-09
申请号：KR1020010023987
申请日：2001-05-03
Applicant: 현대자동차주식회사
Inventor： 고영상
IPC: B21K1/44
CPC classification number: B23P15/00 , B21C1/00 , B21H3/02 , B21J5/12 , C21D9/0093
Abstract: PURPOSE: A method of manufacturing cylinder head bolts for vehicles is provided for maintaining a binding power of cylinder head and cylinder block necessary for torque clamp by getting low priced chrome alloy steel (SCR 435) heated to have yielding strength and tension strength which high priced chrome molybdenum alloy steel (SCM 435) has. CONSTITUTION: The method of manufacturing cylinder head bolts for vehicles comprises a preparatory step (S10) for preparing chrome alloy steel, a basic material, as required for bolts standard; a wire drawing step (S20) for dealing with chrome alloy steel prepared in the preparatory step (S10); a forging step (S30) for processing chrome alloy steel roughly by using a press device again; a cutting step (S40) for processing chrome alloy steel as required by the standard; a rolling step (S50) for improving yielding strength and tension strength of the bolts processed through the cutting step (S40); a tampering step (S50') for improving yielding strength and tension strength of the bolts by getting them heated for about 2 hours at 250°C; a surface processing step (S60) for improving abrasion resistance on the surface of the bolts as well as improving yielding strength and tension strength of the bolts; and a checking step (S70) for checking the final bolts with naked eyes and mechanically.
Abstract translation: 目的：提供一种制造车辆气缸盖螺栓的方法，用于通过将低价铬合金钢（SCR 435）加热到具有屈服强度和拉伸强度（高价格）来维持扭矩夹所需的气缸盖和气缸体的捆扎力 铬钼合金钢（SCM 435）。 构成：制造车辆用气缸盖螺栓的方法包括制备铬合金钢的准备步骤（S10），根据螺栓标准要求的基本材料; 用于处理在准备步骤（S10）中准备的铬合金钢的拉丝步骤（S20）; 锻造步骤（S30），用于再次使用压制装置粗加工铬合金钢; 用于根据标准要求处理铬合金钢的切割步骤（S40）; 用于提高通过切割步骤处理的螺栓的屈服强度和张力的轧制步骤（S50）（S40）; 通过在250℃下加热约2小时来改善螺栓的屈服强度和拉伸强度的篡改步骤（S50'）; 用于改善螺栓表面的耐磨性的表面处理步骤（S60）以及提高螺栓的屈服强度和拉伸强度; 以及用肉眼和机械地检查最终螺栓的检查步骤（S70）。
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公开(公告)号：KR101459781B1
公开(公告)日：2014-11-07
申请号：KR1020080086979
申请日：2008-09-03
Inventor： 고영상
Abstract: 중량%로, C 0.2~0.4%, Si 0.035%, Mn 0.5~1.0%, P 0.03% 이하, S 0.03%이하, V 0.01~0.05%, Nb 0.05~0.50%, 나머지 철 및 기타 불가피한 불순물을 포함하는 조성을 갖는 단조용 강과, 이러한 단조용 강에 대한 열간 단조 후의 냉각 제어를 통해 얻어진 베이나이트 단일상을 갖는 단조품이 소개된다. 본 발명에 따르면, 피로강도 및 가공성이 우수하며 원가 절감이 가능한 저가형 단조용 강 및 단조품을 얻을 수 있다.
단조용 강, 비조질강-
公开(公告)号：KR1020120028657A
公开(公告)日：2012-03-23
申请号：KR1020100090645
申请日：2010-09-15
CPC classification number: C21D11/005 , B21J1/06 , C21D2211/005 , C21D2211/009
Abstract: PURPOSE: A multi-stage control cooling process for manufacture of V-MA pearlite-ferrite hot-forged steel is provided to increase the ferrite fraction by super-cooling a hot-formed structure to low temperatures and maintaining a constant temperature at the transformation temperature of ferrite. CONSTITUTION: A multi-stage control cooling process for manufacture of V-MA pearlite-ferrite hot-forged steel comprises the steps of: rapidly cooling a hot-forged body to a low transformation temperature range of austenite-ferrite, maintaining a constant temperature in the transformation temperature range of austenite-ferrite, and air-cooling the hot-forged body.
Abstract translation: 目的：提供用于制造V-MA珠光体 - 铁素体热锻钢的多级控制冷却方法，以通过将热成型结构超冷却至低温并在转变温度保持恒定温度来提高铁素体分数 的铁素体。 构成：用于制造V-MA珠光体 - 铁素体热锻钢的多级控制冷却方法包括以下步骤：将热锻件快速冷却至奥氏体 - 铁素体的低相变温度范围，保持恒定温度 奥氏体铁素体的转变温度范围，并对热锻造体进行空冷。
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