본 연구는 지속 가능한 발전과 환경보호를 위한 ESG의 핵심 과제인 탄소중립을 달성하기 위해 최근 철강산업에서 추진 중인 탄소중립 시나리오를 조사하고 그 현실성에 대하여 검토하였다. 2050년까지 탄소중립을 실현하기 위한 시나리오에서 철강산업이 차지하는 비중과 그 계획을 점검하고, 온실가스 감축 단계 및 수소 환원 제철 기술개발 단계에서도 중요한 역할을 하게 될 전기로 제강법의 역할과 과제에 대하여 살펴보았다. 전기로 제강법은 기존의 일반강을 생산하는 단계에서 향후 일관제철소의 전로제강을 대체하는 중요한 역할을 담당해야 한다. 다만 전기로는 전로제강 대비 탄소의 사용은 적으나 전기 에너지가 많이 소비되므로 이에 대한 대응 방안을 마련할 필요가 있다. 이에 논문에서는 전기로의 대체에 따른 전기 에너지의 사용량 증가에 대한 문제점을 도출하고 해결 방안을 제시해 보았다. 향후 철강산업의 탄소중립을 위한 전기로 설비 대체와 전기 에너지의 효율적 사용은 중요한 과제가 될 것이며 사업장 ESG 전략 수립에 필수적인 요소가 될 것으로 기대한다.

한국 철강산업은 어떻게 해서 세계적인 경쟁력을 갖게 되었는가? ‘청암의 탁월한 기업가정신 때문이다‘라고 본 고는 답하고 있다. 기업가정신의 핵심은 혁신이고 혁신적인 경영활동에 의해 기업과 산업의 국제경쟁력이 제고되 기 때문이다. 청암 박태준은 기업가정신을 발휘하여 소명의식을 지닌 임직원을 만들고 경영과 조직을 혁신하여 기업경영 조 건을 향상시키고, 일본정부와 철강산업의 협력을 이끌어내어 요소조건과 관련산업조건을 개선하고, 수출시장을 개척하여 수요조건을 개선하는 등의 혁신을 바탕으로 건설공기와 조업기간 단축 등과 같이 생산성을 향상시킴으 로써 한국 철강산업의 국제경쟁력을 제고시켰다. 즉, 포스코를 창업하고 25년 동안 경영하였던 청암의 기업가정 신으로 인해 한국 철강산업은 세계적인 경쟁력을 확보하게 되었던 것이다. 포스코와 한국 철강산업의 성공요인을 설명하는 기존의 논문과는 다른 차원에서 애국심보다는 기업가정신이 국 가경쟁우위 4개 요인을 개선 및 혁신하였기에 한국 철강산업의 국제경쟁력이 제고되었다는 것이다.

Due to the rapid change of global business environment, the growth of China’s steel industry and the inflow of cheap products, domestic steel industry is faced on downward trend. The change of business paradigms from a quantitative growth to a qualitative product is needed in this steel industry. In this environment, it is very important for domestic steel distribution companies to secure their competitiveness by selecting good supply companies through a efficient procurement strategy and effective method. This study tried to find out the success factors of steel distribution industry based on survey research from experts. Weighted values of each factors were found by using AHP (analytic hierarchy process) analysis. The weighted values were applied to DEA(data envelopment analysis) model and eventually the best steel supply company were selected. This paper used 29 domestic steel distribution firms for case example and 5 steps of decision process to select good vendors were suggested.This study used quality, price, delivery and finance as a selection criteria. Using this four criterions, nine variable were suggested. Which were product diversity, base price, discount, payment position, average delivery date, urgency order responsibility and financial condition. These variables were used as a output variable of DEA. Sales and facilities were used as an input variable. Pairwise comparison was conducted using these variables. The weighted value calculated by AHP pairwise comparison were used for DEA analysis. Through the analysis of DEA efficiency process, good DMU (decision making unit) were recommended as a steel supply company. The domestic case example was used to show the effectiveness of this study.

Abstract In this study, Fe-Ni slag, converter slag and dephosphorization slag generated from the steel industry, and fly ash or bottom ash from a power plant, were mixed at an appropriate mixing ratio and melted in a melting furnace in a massproduction process for glass ceramics. Then, glass-ceramic products, having a basalt composition with SiO₂, Al₂O₃, CaO, MgO, and Fe₂O₃ components, were fabricated through casting and heat treatment process. Comparison was made of the samples before and after the modification of the process conditions. Glass-ceramic samples before and after the process modification were similar in chemical composition, but Al₂O₃ and Na₂O contents were slightly higher in the samples before the modification. Before and after the process modification, it was confirmed that the sample had a melting temperature below 1250 ℃, and that pyroxene and diopside are the primary phases of the product. The crystallization temperature in the sample after modification was found to be higher than that in the sample before modification. The activation energy for crystallization was evaluated and found to be 467 kJ/mol for the sample before the process modification, and 337 kJ/mol for the sample after the process modification. The degree of crystallinity was evaluated and found to be 82% before the process change and 87% after the process change. Mechanical properties such as compressive strength and bending strength were evaluated and found to be excellent for the sample after process modification. In conclusion, the samples after the process modification were evaluated and found to have superior characteristics compared to those before the modification.

It was investigated the state information for the atmospheric conditions around Dang-jin industrial complex in Chungnam area may be polluted by the constructing steel industrial complex. It is aimed at characterization of the fine particulate matter and other air pollutants involved in it. Samples were collected two sites for monitoring point representing steel industrial complex and one site which is placed a remote and secluded from this industrial complex, and the concentration of PM10, heavy metals, and ion components were analyzed. As a results, PM10 average concentration was 64.6㎍/㎥ for the adjacent site before Hyundai Steel Company, 70.5㎍/㎥ in Bugok immigration settlement complex, and 56.5㎍/㎥ for Jeonggok-ri contrastive point. The distribution of heavy metals was detected as very low level for all sampling points. According to the result of statistical evaluation for the heavy metal analysis, variation range of Cu, Mn, Ca, Fe, and Mg were significant higher than others. Also, the seasonal concentration change trend of heavy metals was remarkable strong in spring and low in summer because of instable meteorological phenomena such as yellow dust happened in spring. Monthly changing pattern of a sulphate ion has kept unusually high level for summer period different other components. Relationship among PM10, heavy metal, and ion component were analyzed that high positive correlation coefficient for PM10 between Fe, Mn, Pb, Ca, Mg, Cd, Al in order and PM10 between NO3-, Cl- successively. Accordingly, it is suggested that a present atmospheric conditions of the surrounding area of Dang-jin steel industrial complex is considered to be good level. Although air pollutants in emissions from their complex were below the existing emission limit, it is regarded that the systematic and continuous research is needed to preserve clean air through atmospheric monitoring, source tracing research, and citizen's surveillance for the fine particulate matter.

In this paper, we purpose the integrated TMS to solve the problem of current systems. The current system resulted in inconvenience because customers and users must contact to each system, when they want to know the information about orders. In this research, we develope a system with which customers and users can confirm all of order information from one system. To solve this problem, the information brought from two systems is integrated by constructing integrated database.

In this paper, we purpose the integrated TMS to solve the problem of current systems. Current system resulted in the inconvenience because customer and user must contact to each systems when they want to know the information about the order. In this time, we make the system customer and user can confirm all of order information from one system to solve this problem by integrating the information brought from two systems on constructing integrated DataBase.

The company was focusing on production which was partial mission rather than acquiring the information of customer in intensive process industry. The company accepted loss which is from over-production, losing of opportunity. After changing to Web environment, supply chain is more complicated and need of customer is more various. As a result the company hard works on controlling production rates, production quantities in production area and gathering exact information which is about available resource and available quantities. Cooperated demand planning have to get decreasing of inventory, improving of customer service in supply chain management. Specially demand planning that considers allocation of capacity is executed in Iron-Industry. Demand planning must be classified by customer, region and supply position level.

The environment of management is changed by the improving Information Technology, the changing market that is overflowed by product, the competing between enterprises, and the segmenting the whole market. As a result, the concept of the 1:1 marketing is appeared on the environment of management by high quality that customer needs. In this paradigm, the CRM(Customer Relationship Management) is able to be executed by the advancing of the Information Technology (IT), the constituting, Data Base, the analyzing data in Data Base. The CRM(Customer Relationship Management) offers integrated multiple view poingts and methods of the corresponding to customers. The CRM(Customer Relationship Management) is a crirical element in the business. This study considers the effective implementing CRM(Customer Relationship Management) in the steel industry which has unique characteristics

The environment of management is changed by the improving Information Technology, the changing market that is overflowed by product, the competing between enterprises, and the segmenting the whole market. As a result, the concept of the 1:1 marketing is appeared on the environment of management by high quality that customer needs. In this paradigm, the CRM(Customer Relationship Management) is able to be executed by the advancing of the Information Technology(IT), the constituting, Data Base, the analyzing data in Data Base. The CRM(Customer Relationship Management) offers integrated multiple view poingts and methods of the corresponding to customers. The CRM(Customer Relationship Management) is a crirical element in the business. This study considers the effective implementing CRM(Customer Relationship Management) in the steel industry which has unique characteristics

철강 생산으로 인하여 부산되는 철강슬래그 역시 계속적으로 증가하여 2018년에 2,423 만톤에 이르고 있으나 고로슬래그를 제외한 철강부산물은 단순매립 등으로 재활용되고 있어 산업부산물의 유효활용을 통한 자원순환형 사회 구축 및 천연자원 고갈방지를 위해서는 다양한 활용기술 개발이 절실히 요구되고 있는 실정이다. 한편, 근래 무분별한 해양개발 및 환경오염 등으로 광대한 해양생물의 서식기반이 소실되어 수산자원의 감소현상이 심화되고 있어 이에 대한 대책이 시급한 실정이다. 따라서 본 연구에서는 다량 부산되는 복합슬래그를 천연골재 대체재료로 재활용하는 방안 제시와 해수정화가 가능한 친환경 다공질콘크리트의 배합요인별 공학적 특성 및 적용성 검토연구를 수행하였다. 배합요인별 공극률 시험결과 모든 조건에서 오차범위 2.5%이내의 결과를 나타내었다. 압축강도시험결과 최적 혼입률은 복합슬래그골재 30%, 혼입시 가장 우수한 친환경 다공질콘크리트 제조가 가능하였다. 입상인공Zeolite를 혼입함으로서 침지일수 14일에 총질소 및 총인 농도가 36.8∼54.6%까지 감소하여 입상인공제올라이트의 효과를 확인하였다.