公开(公告)号：KR1020030053710A

公开(公告)日：2003-07-02

申请号：KR1020010083658

申请日：2001-12-22

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합 ,  주식회사 세아창원특수강 ,  주식회사 포스코

Inventor： 김필호 ,  박재철

IPC: B21J5/00

Abstract: PURPOSE: A method for deducing hot free forging pass schedule is provided to produce pass schedule having the minimum pass and minimum time when producing rolling pass schedule from initial rectangular workpiece to target rectangular workpiece. CONSTITUTION: The method comprises the steps of forging the billet to the maximum to target dimensions of thickness and width or less by the maximum available rolling reduction per pass found using bisectional search method of forging machine such as the maximum pass calculation part when forging billet into rectangular bar and wide bar; determining the maximum pass frequency and whether to rotate the bar or not by repeating the processes of forging width of the bar to a target width by rotating the rectangular bar per each pass in case of the rectangular bar and rotating the forged wide bar after forging the wide bar from initial thickness to a target thickness or less in case of wide bar, and performing thickness forging again in case that thickness of the bar is increased to the target thickness or more again by thickness deviation due to target width forging; and changing variation determining variable into positive if the final product is smaller than the target dimensions and changing variation determining variable into negative if the final product is larger than the target dimensions in case final product does not reach target dimensions after initiating rolling reduction of the total pass into an arbitrary small value, reducing revision of adjusting variable revision coefficient as the current repetition frequency approaches the maximum repetition frequency, and reducing revision of the already determined total pass as it goes to the later stage of pass.

Abstract translation: 目的：提供一种用于推导热自由锻造工艺流程的方法，以生产从初始矩形工件到目标矩形工件生产轧制过程时具有最小通过时间和最小时间的通过时间表。 方法：该方法包括以下步骤：通过使用锻造机的二等分搜索方法（例如，当将坯料锻造成最大通过计算部分时）的最大通过计算部分，通过最大可用的轧制压下量将坯料锻造最大到目标尺寸的厚度和宽度 矩形酒吧和宽酒吧; 通过在矩形棒的情况下，通过在每次通过中旋转矩形棒并且在锻造之后旋转锻造的宽棒来确定最大通过频率以及是否旋转棒，以通过将条的锻造宽度重复到目标宽度的过程 在宽棒的情况下，从初始厚度到目标厚度或更小的宽条，并且在由于目标宽度锻造而由棒的厚度增加到目标厚度或更多再次由厚度偏差的情况下再次进行厚度锻造; 如果最终产品小于目标尺寸，则将变化确定变量变为正数，并且如果在最终产品没有达到目标尺寸之后最终产品大于目标尺寸，则变化变量确定变量变为负值 传递到任意小的值，减少当前重复频率接近最大重复频率时调整可变修正系数的修正，并减少已经确定的总传递的修改，因为它到后期阶段。

公开(公告)号：KR1020030053701A

公开(公告)日：2003-07-02

申请号：KR1020010083649

申请日：2001-12-22

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합 ,  주식회사 포스콘 ,  주식회사 포스코

Inventor： 김승섭 ,  정희돈 ,  권영각

IPC: G01M3/38

Abstract: PURPOSE: An apparatus and a method for detecting water leakage are provided to effectively detect water leakage and positions of leakage of an underground water feeding pipe line of district heating system by laying optical cables along the pipe line and detecting temperature along the pipe line. CONSTITUTION: A water leakage detecting apparatus includes a pulse laser generator(10) for generating laser pulse. Laser pulse is introduced into an optical cable in a pipe line by passing through an optical coupler(20). While laser pulse is being transferred through the optical cable, parts of an anti-stokes line and a stokes line are returned to the opposite direction of the pulse proceeding direction. The anti-stokes line and the stokes line passing through optical filters(40) are separated and are converted into electric signals through opto-electric converters(50). The electric signals are stored in a memory by passing through an electronic circuit section(60) connected to a computer(70).

Abstract translation: 目的：提供一种检测漏水的装置和方法，通过沿管线铺设光缆并沿管线检测温度，有效地检测区域供热系统地下供水管线的漏水和泄漏位置。 构成：漏水检测装置包括用于产生激光脉冲的脉冲激光发生器（10）。 通过光耦合器（20）将激光脉冲引入管线中的光缆中。 当激光脉冲通过光缆传输时，反斯托克斯线和斯托克斯线的部分返回到脉冲进行方向的相反方向。 穿过滤光器（40）的反斯托克斯线和斯托克斯线被分离，并通过光电转换器（50）转换成电信号。 通过通过连接到计算机（70）的电子电路部分（60）将电信号存储在存储器中。

公开(公告)号：KR1020030052921A

公开(公告)日：2003-06-27

申请号：KR1020010083057

申请日：2001-12-21

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합 ,  포스코강판 주식회사 ,  주식회사 포스코

Inventor： 성병근 ,  송진화 ,  오상록

IPC: C23C2/00

CPC classification number: C23C4/067 ,  C23C2/003 ,  C23C4/126

Abstract: PURPOSE: Provided are thermal spray coated pot rolls used in aluminum pot of continuous aluminum plating line, such as sink roll and stabilizing roll, which has excellent corrosion and erosion resistances against aluminum melt. CONSTITUTION: The rolls is obtained by thermal spray coating a sink roll and a stabilizing roll with a metal powder essentially consisting of Co 22 to 26 wt.%, Cr 11 to 15 wt.%, B 5 to 7 wt.%, and a balance of Mo.

Abstract translation: 目的：提供连续铝电镀线铝罐的热喷涂锅辊，如水槽辊和稳定辊，对铝熔体具有优良的耐腐蚀和耐腐蚀性。 构成：通过用基本上由Co 22至26重量％，Cr 11至15重量％，B 5至7重量％组成的金属粉末热沉涂布沉辊和稳定辊获得辊， Mo的平衡

公开(公告)号：KR1020030052905A

公开(公告)日：2003-06-27

申请号：KR1020010083041

申请日：2001-12-21

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합 ,  포스코강판 주식회사 ,  주식회사 포스코

Inventor： 송진화 ,  성병근 ,  이상용

IPC: C23C2/00

CPC classification number: C23C2/003 ,  B05C3/125 ,  C23C2/40

Abstract: PURPOSE: A journal bearing of dipping rolls for molten metal plating is provided to extend life cycle of the journal bearing by manufacturing bearing liner using cermet reinforced by molybdenum boride compound and manufacturing bush rubbed against the bearing liner using zirconia (ZrO2) based or silicon nitride (Si3N4) based ceramic. CONSTITUTION: As a journal bearing, a bearing driving component, for dipping rolls that are sink roll(3) and stabilizing rolls(4) to be dipped into hot dip coating pot, the journal bearing of the dipping rolls for molten metal plating is characterized in that the journal bearing of the dipping rolls comprises bearing liner(6) and bush(7), the bearing liner(6) is made of cermet of cobalt or nickel alloy matrix in which molybdenum boride compound is reinforced, and the bush(7) is made of a zirconia (ZrO2) based or silicon nitride (Si3N4) based ceramic.

Abstract translation: 目的：提供用于熔融金属电镀的浸轧辊的轴颈轴承，以通过使用由硼化钼复合材料增强的金属陶瓷制造轴承衬套和使用氧化锆（ZrO 2）基或氮化硅对轴承衬垫摩擦的制造衬套来延长轴颈轴承的寿命周期 （Si3N4）基陶瓷。 构成：作为轴颈轴承，轴承驱动部件，用于将浸渍辊（3）和稳定辊（4）的浸渍辊浸入热浸镀锅中的辊轴承，表征用于熔融金属镀覆的浸轧辊的轴颈轴承 由于浸轧辊的轴颈轴承包括轴承衬套（6）和衬套（7），轴承衬套（6）由钴或镍合金基体的金属陶瓷制成，其中硼化钼复合材料被加强，衬套（7） ）由氧化锆（ZrO 2）基或氮化硅（Si 3 N 4）基陶瓷制成。

公开(公告)号：KR1020030052861A

公开(公告)日：2003-06-27

申请号：KR1020010082979

申请日：2001-12-21

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합 ,  주식회사 포스콘 ,  주식회사 포스코

Inventor： 이기범 ,  이진수 ,  한찬동

IPC: G05B19/05

CPC classification number: G05B19/05 ,  G05B2219/13018 ,  G05B2219/13052

Abstract: PURPOSE: A method for drawing a ladder diagram using a petri net is provided to form a PLC(Programmable logic Controller) program by converting a petri net to a ladder diagram. CONSTITUTION: A petri net is drawn by analyzing operations and states requested from a controlled system(S101). All activated places are obtained from input places connected to a normal arc and an enabling arc on the basis of input transition in the petri net(S102). All places which do not have tokens are obtained from the input places connected to a prohibition arc in the petri net(S103). Each state condition of the obtained places, conditional inputs and event inputs of the input transition are obtained(S106). The tokens are added to the corresponding place if the input transitions related to the conditional inputs of the corresponding place are started(S107,S108). The number of the activated transitions is obtained from the output transitions satisfying a starting condition connected to the normal arc of the corresponding place(S109). The tokens are removed from the corresponding place if the output transitions are started(S110,S111). A Boolean numerical expression for the corresponding place is obtained(S112). A ladder diagram is drawn by using the Boolean numerical expression for the corresponding place(S115).

Abstract translation: 目的：提供使用petri网绘制梯形图的方法，通过将petri网转换为梯形图形成PLC（可编程逻辑控制器）程序。 规定：通过分析来自受控系统的操作和状态来绘制Petri网（S101）。 所有激活的位置都是从连接到正常弧的输入位置和基于petri网中的输入转换的使能电弧获得的（S102）。 所有不具有令牌的地方都是从连接到防雷弧的输入场所获得的（S103）。 获得所获得的地点的状态，输入转变的条件输入和事件输入（S106）。 如果与相应地点的条件输入有关的输入转换开始，则将令牌添加到相应的位置（S107，S108）。 从满足与相应位置的正常弧相连的起始条件的输出转变获得激活的转变的数量（S109）。 如果输出转换启动，则从对应的位置移除令牌（S110，S111）。 获得相应位置的布尔数值表达式（S112）。 通过使用相应位置的布尔数值表达式绘制梯形图（S115）。

公开(公告)号：KR1020030017076A

公开(公告)日：2003-03-03

申请号：KR1020010051195

申请日：2001-08-23

Applicant: 주식회사 포스코 ,  철강융합신기술연구조합 ,  재단법인 포항산업과학연구원 ,  주식회사 포스코건설

Inventor： 강신경

IPC: C02F9/10

Abstract: PURPOSE: A landfill leachate treatment apparatus using landfill gas is provided, which is characterized in that landfill leachate is evaporated by using landfill gas as heat source, leachate condensate is further treated by reverse osmosis membrane. CONSTITUTION: The system comprises an evaporator(50) equipped with an evaporator main body(10); a leachate treatment tank(20) installed in the evaporator main body(10); a plurality of evaporation tubes(30) installed traverse in the treatment tank(20) for the hot gas (G') to pass; a burner(40) equipped with a rapid flame ignition device(42) for generating flame made by burning landfill gas as a heat source; a filter device(70) connected to the evaporator(50) for filtering the condensate (W) of the evaporator(50) into penetrated water (W1) and re-feed condensate (W2).

Abstract translation: 目的：提供使用垃圾填埋气的垃圾填埋场渗滤液处理装置，其特征在于垃圾渗滤液通过填埋气体作为热源蒸发，渗滤液冷凝物由反渗透膜进一步处理。 构成：系统包括配备有蒸发器主体（10）的蒸发器（50）。 安装在蒸发器主体（10）中的渗滤液处理槽（20）; 多个蒸发管（30），横置于用于热气（G'）的处理槽（20）中通过; 配备有快速火焰点火装置（42）的燃烧器（40），用于产生通过燃烧填埋气体作为热源制成的火焰; 连接到蒸发器（50）的过滤装置（70），用于将蒸发器（50）的冷凝物（W）过滤成穿透水（W1）并重新进料冷凝物（W2）。

公开(公告)号：KR100368832B1

公开(公告)日：2003-01-24

申请号：KR1020000080530

申请日：2000-12-22

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합

Inventor： 성진경

IPC: C23C2/06

Abstract: PURPOSE: An apparatus is provided which simulates molten aluminum plating using a simple equipment so as to problems of a conventional molten plating simulator, that is, difficulties in performing simulation test due to scale-up of the equipment. CONSTITUTION: The simulator for alloying molten aluminum plating comprises a cooling section(1), a preheating section(2) and an alloying section(3) which are constructed in three stages from up to down, and integrated in a cylindrical shape, wherein a cooling section sliding door(5) equipped with a cooling section sliding door transfer unit(4), an inert cooling gas input line(7) with an ejection nozzle(6), and an inert gas exit(8) are installed at the cooling section(1), a preheating section sliding door(10) equipped with a preheating section sliding door transfer unit(9), a reducing gas input line(11), a preheating furnace(12), a thermocouple(13), and a reducing gas exit(14) are installed at the preheating section(2), and an alloying section sliding door(16) equipped with an alloying section sliding door transfer unit(15), a melting furnace(17), a crucible(18), and an aluminum molten metal(19) are installed at the alloying section(3).

Abstract translation: 目的：提供了一种装置，该装置使用简单的设备来模拟熔融铝电镀，以便解决常规熔融电镀模拟器的问题，即由于设备的放大而难以进行模拟测试。 用于合金化熔融铝镀层的模拟器包括从上至下三级构造的冷却部分（1），预热部分（2）和合金部分（3），并且集成为圆柱形，其中a 在冷却过程中安装有配备有冷却部分滑动门转移单元（4）的冷却部分滑动门（5），具有喷射喷嘴（6）的惰性冷却气体输入线路（7）以及惰性气体出口（8） （9），还原气体输入管线（11），预热炉（12），热电偶（13）和热电偶（13）的预热部分滑动门（10） （15），熔化炉（17），坩埚（18）的合金部分滑动门（16），所述合金部分滑动门（16）设置在所述预热部分 和铝熔融金属（19）安装在合金部分（3）处。

公开(公告)号：KR100359237B1

公开(公告)日：2002-11-04

申请号：KR1020000080046

申请日：2000-12-22

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합

Inventor： 목임수 ,  김광일 ,  김영덕

IPC: G01N21/47

Abstract: 본 발명은 분진이 발생하는 곳에 설치되어 분진의 농도를 측정하는 분진농도 측정장치에 있어서, 측정된 분진농도값에 대한 신뢰도가 높도록 신호증폭 및 신호변환 과정을 축소시킨 분진농도 측정장치를 제공하는 데 그 목적이 있다.
본 발명에 따르면, 광원으로부터 투광된 빛이 일정한 세기의 빛인가를 검측하는 기준값 검출센서(15)와, 분진에 의해 산란되어진 빛을 받아 세기를 검측하는 측정값 검출센서(17)와, 기준값 검출센서(15)와 측정값 검출센서(17)로부터 출력된 신호를 각각 1차 증폭하는 증폭기(60)와, 증폭기(60)에 의해 증폭된 두 신호를 다중화하는 멀티플럭스(Multiplex)(62)를 포함하며, 산란된 빛의 세기로서 분진의 농도를 측정하는 분진농도 측정장치에 있어서, 멀티플럭스(62)로부터 출력된 신호를 일정 범위까지 증폭하는 프로그래머블 게인 증폭기(PGA; Programmable Gain Amplifier)(64)와, 프로그래머블 게인 증폭기(64)로부터 증폭된 값을 일정대역의 주파수만 필터링하는 밴드 패스 필터(BPF; Band Pass Filter)(66)와, 필터링된 주파수를 디지털신호로 변환하는 AD변환기(68) 및, AD변환기(68) 로부터 디지털신호를 입력받아 빛의 기준값과 측정값을 비교 연산하여 분진의 양을 측정하고, 빛을 투광하는 광원의 세기를 일정하게 제어하는 제어부(70)를 포함하는 분진농도 측정장치가 제공된다.

公开(公告)号：KR1020020076723A

公开(公告)日：2002-10-11

申请号：KR1020010016812

申请日：2001-03-30

Applicant: 철강융합신기술연구조합 ,  재단법인 포항산업과학연구원

Inventor： 정재영 ,  마봉열

IPC: C22C38/12

Abstract: PURPOSE: To manufacture Co-free high speed steel having superior hardness by modifying Si and Cu content with no addition of Co or rare earth metals. CONSTITUTION: The Co-free high speed steel having superior hardness is manufactured by soaking an alloy cast comprising C 0.75 to 1.1 wt.%, Si 0.32 to 1.0 wt.%, Mn 0.5 wt.% or less, Cr 3.7 to 4.5 wt.%, Ni 0.30 wt.% or less, Mo 4.5 to 5.5 wt.%, W 5.5 to 6.8 wt.%, V 1.7 to 2.2 wt.%, Cu 0.6 wt.% or less, a balance of Fe and other inevitable impurities at 1100 to 1150 deg.C, wherein Si is 0.5 to 1.0 wt.% and Cu is less than 0.3 wt.%.

Abstract translation: 目的：通过不添加Co或稀土金属，通过改变Si和Cu含量来制造具有优异硬度的无钴高速钢。 构成：具有优异硬度的无Co高速钢通过将包含C 0.75〜1.1重量％，Si 0.32〜1.0重量％，Mn 0.5重量％以下，Cr 3.7〜4.5重量％的合金铸件， ％，Ni 0.30重量％以下，Mo 4.5〜5.5重量％，W 5.5〜6.8重量％，V 1.7〜2.2重量％，Cu：0.6重量％以下，余量为Fe和其他不可避免的杂质 在1100〜1150℃，Si为0.5〜1.0重量％，Cu为0.3重量％以下。

公开(公告)号：KR100347008B1

公开(公告)日：2002-07-31

申请号：KR1019990061375

申请日：1999-12-23

Applicant: 재단법인 포항산업과학연구원 ,  철강융합신기술연구조합

Inventor： 정우철 ,  김영덕

IPC: G01H11/00

Abstract: 이발명은진동센서에의한진동측정치의온도의존성을보정하기위한것으로서, 임피던스변환용세라믹소자(11)의하부에부착된온도센서(12)를포함하는진동온도복합센서(10)를제공하고, 그러한진동온도복합센서(10)와, 세라믹소자(11)가갖는온도의존성에관한출력변동값을미리측정하여기록해두기위한기억소자(23)와, 기억소자(23)에저장된데이터를이용하여온도측정치을감안하여보정된순수진동치를연산하는 CPU(25)를구비한진동측정인디게이터를제공한다.