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公开(公告)号：KR1020140030783A
公开(公告)日：2014-03-12
申请号：KR1020120097364
申请日：2012-09-03
Applicant: 주식회사 포스코
Abstract: Provided are a segment protecting device of a casting machine and a method thereof. A segment protecting device of a casting machine which is capable of protecting a segment comprises: a reduction cylinder module for reducing a slab to a desired thickness by pressurizing a reduction roll according to a predetermined first reduction amount; a calculating module for calculating force applied to the reduction cylinder module by the reduced slab; a correcting module for calculating a second reduction amount by subtracting a predetermined offset from the first reduction amount when the calculated force is over a threshold value which is predetermined in order to protect the pressure roll; and a controlling module for controlling the reduction cylinder module in order to pressurize according to the calculated second reduction amount. The described features can be useful for heavy reduction control to reduce a slab with great pressure. [Reference numerals] (210) Calculating module; (220) Correcting module; (230) Controlling module
Abstract translation: 提供一种铸造机的段保护装置及其方法。 能够保护节段的铸造机的节段保护装置包括：还原缸模块，用于根据预定的第一减少量对压缩辊进行加压，将板坯减少到所需厚度; 计算模块，用于计算由所述减钢板施加到所述还原气缸模块的力; 校正模块，用于当所计算的力超过预定的阈值以便保护所述压力辊时，从所述第一减小量减去预定的偏移量来计算第二减小量; 以及控制模块，用于控制所述还原气缸模块，以根据所计算的第二减速量来加压。 所描述的特征可以用于大量减少控制以减小压力很大的板坯。 （附图标记）（210）计算模块; （220）校正模块; （230）控制模块
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公开(公告)号：KR1020130109427A
公开(公告)日：2013-10-08
申请号：KR1020120031157
申请日：2012-03-27
Applicant: 주식회사 포스코
Abstract: PURPOSE: A door frame of a vehicle is provided to improve the fuel efficiency of a vehicle by using TWIP steel satisfying required strength, improving the formability of an inner door frame, forming a bead in the inner door frame, and strengthening and lightening the vehicle. CONSTITUTION: A door frame (1) of a vehicle is partially or entirely made of high strength steel of which tensile strength is 300 MPa or greater. A part of the door frame is formed with a forming reinforcing part (10). The door frame includes an outer door frame (20) and an inner door frame (30). The inner door frame is made of high strength steel formed with the forming reinforcing part. The forming reinforcing part is formed into one or more beads.
Abstract translation: 目的：提供车辆的门框架，以通过使用满足所需强度的TWIP钢来提高车辆的燃油效率，改善内门框架的成型性，在内门框架中形成胎圈，以及加强和减轻车辆 。 构成：车辆的门框（1）部分或全部由抗拉强度为300MPa以上的高强度钢制成。 门框的一部分形成有成形加强部（10）。 门框包括外门框架（20）和内门框架（30）。 内门框由形成有加强件的高强度钢制成。 成形加强部分形成一个或多个珠粒。
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公开(公告)号：KR101271802B1
公开(公告)日：2013-06-07
申请号：KR1020110081520
申请日：2011-08-17
Applicant: 주식회사 포스코
Abstract: 본 발명은 균열이 억제된 열간 프레스 성형품의 제조방법에 관한 것으로서, 보다 상세하게는 고온에서 열간 프레스 성형을 실시할 때, 액상 금속 취화(Liquid Metal Embrittlement, 간략히 'LME') 현상에 의해 성형품에 균열이 발생하는 현상을 억제하는 열간 프레스 성형품의 제조방법에 관한 것이다.
본 발명의 일측면에 따른 열간 프레스 성형품의 제조방법은 아연도금강판으로부터 블랭크를 채취하는 단계; 채취된 블랭크를 가열하는 단계; 상기 가열된 블랭크를 추출하는 단계; 상기 추출된 블랭크를 이송하는 단계; 및 상기 이송된 블랭크를 열간 프레스 성형하는 단계로 이루어지고, 상기 이송하는 단계의 이송시간을 하기의 기준에 의해 설정하는 것을 특징으로 한다.
1) 추출 시점에서의 도금층내 Fe 평균 함량이 40중량% 미만일 경우
이송시간(초)> 0.12×(Zn 부착량(g/m
2 )+7.8
2) 추출 시점에서의 도금층내 Fe 평균 함량이 40~65중량%인 경우
이송시간(초)> 0.1×(Zn 부착량(g/m
2 )+6-
公开(公告)号：KR101263796B1
公开(公告)日：2013-05-13
申请号：KR1020100101025
申请日：2010-10-15
Applicant: 주식회사 포스코
Abstract: 본발명은방향성전기강판에관한것으로, 중량%로, Si: 2.0~4.5%, Al: 0.005~0.040%, Mn: 0.20%이하, N: 0.010%이하, S: 0.010%이하, P: 0.005~0.05%, C: 0.04~0.07%, Sn: 0.08~0.10%를함유하고잔부 Fe 및기타불가피하게혼입되는불순물로이루어지는슬라브를 1050~1250℃로가열하고, 열간압연한후, 열연판소둔, 냉간압연을실시하고, 이어서탈탄및 질화소둔을실시한후, 2차재결정소둔을실시하는과정을포함하여이루어지며, Sn이주된결정립성장억제제로활용되는저철손고자속밀도방향성전기강판의제조방법을제공한다. 본발명에따르면적정량의 Sn을주된결정립성장억제제로활용하여 1차재결정집합조직에서고스방위를갖는결정립의분율을증가시키고, 슬라브재가열시고용되는 N의함량을제어하고탈탄소둔전의승온조건과탈탄소둔온도를적정화하여결정성장구동력과억제력의균형을적절히유지시켜 2차재결정을안정화함으로써최종 2차재결정후의 {110} 방위로의집적도가매우높고결정립크기가미세한고스집합조직으로구성된초저철손고자속밀도방향성전기강판을제조할수 있다.
Abstract translation: 本发明涉及一种晶粒取向电工钢板，以重量％以下，Si：2.0〜4.5％以下，Al：0.005〜0.040％以下，Mn：0.20％以下，N：0.010％以下，S：0.010％以下，P：0.005〜 0.05％，C：0.04〜0.07％以下，Sn：含有0.08〜0.10％，以及余量的Fe和其他一个必然加热制成的掺入杂质的板坯以1050〜1250℃，热轧的热轧板退火后，冷 进行轧制，然后制成，包括二次再结晶退火后进行的工序中，进行脱碳和氮化退火，提供一种制造低铁损的磁通密度的晶粒取向电工钢板的方法被用作锡迁移晶粒生长抑制剂 的。 在根据本发明增加的杠杆Sn的合适的量为具有在一次再结晶织构的Goss方位的一次晶粒生长抑制剂颗粒部分，板坯控制采用的N的含量时的脱碳dunjeon的再加热和温度上升的条件和 适当通过由最终第二来平衡晶体生长驱动力和限制力脱碳退火温度的适当{110} <001>戈斯织构的轴承的集成度是非常高的并且粒径微细，再结晶后通过稳定二次再结晶 可以制造超低铁损高比重定向电工钢板。
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公开(公告)号：KR1020130019523A
公开(公告)日：2013-02-27
申请号：KR1020110081520
申请日：2011-08-17
Applicant: 주식회사 포스코
Abstract: PURPOSE: A manufacturing method of a hot press molded part in which cracking is suppressed is provided to economically suppress cracking on a hot press molder part with simple methods. CONSTITUTION: A manufacturing method of a hot press molded part in which cracking is suppressed comprises the following steps: collecting blank from a galvanized steel sheet; heating the collected blank; extracting the heated blank; transferring the extracted blank; pressing and forming the transferred blank. A transfer time is set by standards is as follows: If Fe average content is below 40 wt%, the transfer time> 0.12×Zn bonding weight(g/m2) +7.8; If Fe average content is 40~65 weight%, the transfer time> 0.1×Zn bonding weight(g/m2) +6; the transfer time is set up 20 seconds or less. The extraction temperature of the blank is 750-50°C.
Abstract translation: 目的：为了以简单的方法经济地抑制热压成型机部件的开裂，提供了抑制裂纹的热压成型部的制造方法。 构成：抑制裂纹的热压成型部的制造方法包括以下步骤：从镀锌钢板收集坯料; 加热收集的空白; 提取加热的空白; 转移提取的空白; 压制成型转印坯料。 转移时间由标准设定如下：如果Fe平均含量低于40wt％，转移时间> 0.12×Zn粘合重量（g / m2）+7.8; 如果Fe平均含量为40〜65重量％，转移时间> 0.1×Zn结合重量（g / m2）+6; 传送时间设定为20秒以下。 坯料的提取温度为750-50℃。
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Patent Agency Ranking
公开(公告)号：KR1020120110961A
公开(公告)日：2012-10-10
申请号：KR1020110029173
申请日：2011-03-31
Applicant: 주식회사 포스코
CPC classification number: C21D9/00 , B21D22/022 , C21D9/0012 , F27B9/20 , F27D19/00
Abstract: PURPOSE: A heat treatment device for hot-forming a blank and a hot-formed product manufacturing method are provided to form areas with different strengths and properties in a single part. CONSTITUTION: A heat treatment device for hot forming a blank comprises a device body(10) which a firstly heated blank(100) passes through, a heat treatment unit(30) which heats or retains the heat of the blank, a blank cooling unit(50) which cools at least a part of the blank, and a partition unit(70) which divides a blank cooling area(X) and reduces the temperature transition area(100') of the blank.
Abstract translation: 目的：提供一种用于热成型坯料的热处理装置和热成型制品的制造方法，以在单个部件中形成具有不同强度和性质的区域。 构成：用于热成型坯料的热处理装置包括首先加热的坯料（100）通过的装置主体（10），加热或保持坯料的热量的热处理单元（30），空白冷却单元 （50），其冷却坯料的至少一部分，以及分隔单元（70），其分割空白冷却区域（X）并降低坯料的温度转变区域（100'）。
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公开(公告)号：KR101187851B1
公开(公告)日：2012-10-04
申请号：KR1020100115554
申请日：2010-11-19
Applicant: 주식회사 포스코
IPC: C21B13/06
CPC classification number: C21B13/002 , C21B13/143
Abstract: 용철제조장치 및 용철제조방법이 개시된다. 본 발명에 의한 용철제조장치는 분철광석을 환원하여 분환원철로 전환시키기 위한 다단의 유동 로, 상기 분환원철을 압착하여 고온 괴성체를 제조하기 위한 적어도 하나의 고온 괴성화 장치, 상기 고온 괴성체를 일정한 입도로 파쇄하기 위한 적어도 하나의 파쇄장치, 상기 파쇄된 고온 괴성체를 이송하기 위한 제1 이송장치, 및 상기 이송된 고온 괴성체를 분상 또는 괴상의 일반탄을 연소시켜 용융하며 로내에서 발생하는 환원가스를 상기 유동 환원로에 공급하는 용융로를 포함한다. 또한, 상기 파쇄된 고온 괴성체의 일부를 저장하기 위한 적어도 하나의 괴성체 저장조를 더 포함한다. 본 발명을 적용함으로써, 안정적 및 효율적으로 용철을 제조할 수 있다.
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公开(公告)号：KR1020120063914A
公开(公告)日：2012-06-18
申请号：KR1020100125090
申请日：2010-12-08
Applicant: 주식회사 포스코
IPC: B21D26/14
Abstract: PURPOSE: A method for forming a steel material using electromagnetism is provided to easily change the type and thickness of a nonferrous or steel material according to the physical properties of steel materials or manufacturing conditions. CONSTITUTION: A method for forming a steel material using electromagnetism is as follows. Nonferrous metal(2) having a specific resistance of 6μΩcm or less is located on the upper side of an electromagnetism generator(1). A steel material(3) is located on the nonferrous metal. Electromagnetism is created by the electromagnetism generator to form the steel material.
Abstract translation: 目的：提供使用电磁法形成钢材的方法，以根据钢材的物理性质或制造条件容易地改变有色金属或钢材的种类和厚度。 构成：使用电磁法形成钢材的方法如下。 具有6μΩcm以下电阻率的有色金属（2）位于电磁发生器（1）的上侧。 钢材（3）位于有色金属上。 由电磁发电机产生电磁铁，形成钢材。
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公开(公告)号：KR1020120054262A
公开(公告)日：2012-05-30
申请号：KR1020100115554
申请日：2010-11-19
Applicant: 주식회사 포스코
IPC: C21B13/06
CPC classification number: C21B13/002 , C21B13/143
Abstract: PURPOSE: A molten metal manufacturing device and method are provided to efficiently manufacture molten metal in a melting furnace by efficiently supplying reduced iron even in case of the stoppage of a flow unit. CONSTITUTION: A molten metal manufacturing device comprises a multi-stage flow unit(100) which reduces iron ore to create reduced iron ore, one or more agglomeration devices(200) which compress the reduced iron ore to obtain high-temperature ingot, one or more crushing devices(300) which pulverize the high-temperature ingot to a specific grain size, a first transfer device(400) which transfers the pulverized ingot, and a melting furnace(500) which burns general coal to melt the high-temperature ingot and provides reduction gas to the flow unit.
Abstract translation: 目的：提供一种熔融金属制造装置和方法，即使在流动单元停止的情况下也能有效地提供还原铁，从而在熔化炉中有效地制造熔融金属。 构成：熔融金属制造装置包括多级流动单元（100），其减少铁矿石以产生还原铁矿石，一个或多个聚集装置（200），其压缩还原铁矿石以获得高温锭，一个或多个 将高温锭粉碎成特定粒径的更多破碎装置（300），传送粉碎锭的第一转移装置（400）和燃烧普通煤以熔化高温锭的熔炉（500） 并向流动单元提供还原气体。
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公开(公告)号：KR1020090070743A
公开(公告)日：2009-07-01
申请号：KR1020070138863
申请日：2007-12-27
Applicant: 주식회사 포스코
IPC: B23K26/21 , B23K26/244
Abstract: A welding jig system is provided to hold a welding object securely by pressing the welding object onto a bed by using a magnetic force and to prevent thermal deformation of the welding object by cooling the bottom of the welding object. A welding jig system includes a bed(110) in which two or more welding objects are fixed and welded to abut each other. The bed includes an electromagnet which generates a magnetic force so that the welding objects on the bed are pressed to each other by the magnetic force, a groove(101) having a shape corresponding to the contact part of the welding objects, and a clamping unit fixing both sides of the welding objects. The clamping unit is composed of a fixed rib(121) which is formed on one top side of the bed in which one end of the welding object is supported, and a pressing part(123) which is combined to reciprocate in the guide groove to press-fix the other end of the welding object to the fixed rib.
Abstract translation: 提供一种焊接夹具系统，用于通过使用磁力将焊接对象压入床上并通过冷却焊接对象的底部来防止焊接对象的热变形来牢固地保持焊接对象。 焊接夹具系统包括其中固定和焊接两个或多个焊接对象以彼此邻接的床（110）。 该床包括产生磁力的电磁体，使得床上的焊接物体通过磁力彼此挤压，具有与焊接对象的接触部分对应的形状的凹槽（101）和夹持单元 固定焊接对象的两侧。 夹紧单元由固定肋（121）构成，所述固定肋（121）形成在所述床的一个顶侧，所述焊接对象的一端被支撑在所述床的一个顶侧;以及按压部（123），所述按压部（123）被组合以在所述引导槽中往复运动 将焊接对象的另一端压固到固定肋上。
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