Introduction of Steelmaking Process with Resource Recycling

Manabe, Tadashi; Miyata, Masaki; Ohnuki, Kazuo

doi:10.1007/s40831-019-00221-1

Cited by 9 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To solve this problem, the exothermic agent (mainly ferrosilicon) needs to be added. [26] The heat available for other uses will directly affect the addition amount of SS scrap and exothermic agent, [5,27] so as to further provide guidance for AOD production. Therefore, the effect of parameter changes on the percentage change of available heat for other uses via sensitivity analysis (see Figure 6) is studied.…”

Section: Production Status Analysismentioning

confidence: 99%

A Static Balance Model and Analysis of 430 Stainless Steel Produced by Basic Oxygen Furnace–Argon Oxygen Decarburization Furnace Process

Tian

Zhu

Zhou

et al. 2022

steel research int.

View full text Add to dashboard Cite

Herein, a static mass and energy balance model of 430 stainless steel (SS) produced by the basic oxygen furnace (BOF)–argon oxygen decarburization furnace (AOD) process is established and verified by plant data. It is found that in the AOD, the energy input is efficiently utilized, the heat available for other uses is relatively low (4.0%), and the addition of SS scrap is limited. The high carbon content of dephosphorization hot metal (DPHM) and post‐combustion ratio (PCR) in AOD are conducive to promoting the recycling of SS scrap. In contrast, when the carbon content of DPHM and PCR is low, it is necessary to add an exothermic agent to the furnace. Due to the saving of nickel‐containing raw materials and China's high proportion of thermal power, the carbon emissions and energy consumption per ton 430 SS produced by the BOF–AOD process are 3131 kg‐CO2 and 24 161 MJ, which is much lower than per ton 304 SS produced by the electric arc furnace (EAF)–AOD process. Meaning the former is more conducive to the promotion of energy conservation and emission reduction.

show abstract

Section: Production Status Analysismentioning

confidence: 99%

A Static Balance Model and Analysis of 430 Stainless Steel Produced by Basic Oxygen Furnace–Argon Oxygen Decarburization Furnace Process

Tian

Zhu

Zhou

et al. 2022

steel research int.

View full text Add to dashboard Cite

show abstract

“…A new way of inductive casting from scrap metals in particular has become a trend in more than a decade. The flexibility of using vast selections of material feedstock and controlling the continuous charging without using reductive energy have made this method the staple of many emerging casting industries [15]. It has also been quite successful in promoting the use of scrap steel in recent years, as proved by the increasing number of scrap steel movement over larger manufacturing countries since the 1990s, that leads to better sustainability in the steel manufacturing industries [16].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Quality of 17-4 PH Stainless Steel Scrap-Based Investment-Casting Turbine Blades for the Geothermal Turbine Component Application

Wargadipura,

Hanafi,

Fitriani

et al. 2024

IJLTEMAS

View full text Add to dashboard Cite

This paper discusses an investigation of the ability of investment casting to manufacture rotor turbine blades using scrap materials. The manufacture of stainless steel of 17-4 PH is chosen to demonstrate alloying processes using the scrap materials. The alloying of stainless steel is performed using material balancing technique to match the standard chemical composition of stainless steel 17-4PH.The mechanical properties of the prototype of stainless steel 17-4PH is tested using the uniaxial tensile test machine to obtain the tensile stress and the Brinell impact test is carried out to evaluate the hardness of the material obtained. To evaluate the quality of the casting of the turbine blade obtained, the X-ray radiography of the turbine blade prototype is performed. The result obtained in this study shown that it is possible to have recycled stainless steel 17-4PH to be used in producing turbine blades.

show abstract

“…This makes recycling very attractive for the steel industry because scrap is generally cheaper than ore-based primary production and requires a lower level of energy input that result in reductions in greenhouse gas emissions (Worldsteel 2020). It also lessens the burden on extracting ores for iron and alloying elements (Manabe et al 2019). Overall, steel is the most recycled metal in the world (Worldsteel 2018;ISRI 2020).…”

Section: Introductionmentioning

confidence: 99%

Appraising the value of compositional information and its implications to scrap-based production of steel

et al. 2023

View full text Add to dashboard Cite

The current nature of steel design and production is a response to meet increasingly demanding applications but without much consideration of end-of-life scenarios. The scrap handling infrastructure, particularly the characterization and sorting, is unable to match the complexity of scrapped products. This is manifested in problems of intermixing and contamination in the scrap flows, especially for obsolete scrap. Also, the segmentation of scrap classes in standards with respect to chemical compositions is based on tolerance ranges. Thus, variation in scrap composition exists even within the same scrap type. This study applies the concept of expected value of perfect information (EPVI) to the context of steel recycling. More specifically, it sets out to examine the difference between having partial and full information on scrap composition by using a raw material optimization software. Three different scenarios with different constraints were used to appraise this difference in terms of production and excess costs. With access to perfect information, production costs decreased by 8–10%, and excess costs became negligible. Overall, comparing the respective results gave meaningful insights on the value of reestablishing the compositional information of scrap at the end of its use phase. Furthermore, the results provided relevant findings and contribute to the ongoing discussions on the seemingly disparate prioritization of economic and environmental incentives with respect to the recycling of steel.

show abstract

Introduction of Steelmaking Process with Resource Recycling

Cited by 9 publications

References 25 publications

A Static Balance Model and Analysis of 430 Stainless Steel Produced by Basic Oxygen Furnace–Argon Oxygen Decarburization Furnace Process

A Static Balance Model and Analysis of 430 Stainless Steel Produced by Basic Oxygen Furnace–Argon Oxygen Decarburization Furnace Process

Assessment of the Quality of 17-4 PH Stainless Steel Scrap-Based Investment-Casting Turbine Blades for the Geothermal Turbine Component Application

Appraising the value of compositional information and its implications to scrap-based production of steel

Contact Info

Product

Resources

About