Results 91 to 100 of about 16,292 (270)
Research on the Production Practice of 09CuPCrNi Weather Resistant Steel
Teshugang, 2023 A steel mill uses "KR hot metal desulfurization→90 t converter blowing →LF refining →RH refining→150 mm×150 mm billet continuous casting" process for industrial production of 09CuPCrNi weathering Steel（/%： 0.07-0.13C， 0.35-0.65Si， 0.70-1.00Mn， 0.065-0 ...
Jiang Dongchu, Liu Congde, Yin Chuanlei
doaj
Evaluation of copper slag blast media for railcar maintenance [PDF]
Copper slag was tested as a blasting substitute for zirconium silicate which is used to remove paint from railroad cars. The copper slag tested is less costly, strips paint faster, is produced near the point of need, provides a good bonding surface for ...
Finlayson, Mack H., Sagers, N. W.
core +1 more source
steel research international, EarlyView.This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann +6 more
wiley +1 more source
Applicability of Molecular Dynamics to Analyses of Refining Slags.
ISIJ International, 1993 By the use of molecular dynamics simulation (MD), varieties of properties including structural, transport, optical and thermodynamic properties can be calculated. Since this feature is very attractive to the analyses of refining slags, its applicability was studied.
Tooru Matsumiya +2 more
openaire +2 more sources
Outline of a Washing Treatment to Improve Electric Arc Furnace Slag Environmental Behavior
steel research international, EarlyView.This study evaluates a water‐washing treatment for electric arc furnace slag to reduce the leaching of hazardous elements (Cr, Ba, Mo, and V), enabling its reuse. The process effectively decreases leachate concentrations. Using the treated slag as a substitute aggregate in concrete reduces greenhouse gases emissions by 42.5% compared to landfilling ...
Luca Testini +4 more
wiley +1 more source
A Study on Desulphurization of Bearing Steel GCrl5 with LF Bearing BaO Refining Slag Series
Teshugang, 2012 The effect of ingredient of LF refining slag series (/% : 28. 75 ~ 58. 05CaO, 12. 50 〜32. 43A12O3, 0 ~ 15BaO, 8 ~ 20SiO2, 6MgO, 10CaFz) on desulphurization of high carbon chromium bearing steel GCrl5 (/% : 0. 99C, 1. 45Cr, 0. 034S) has been studied by Mo
杨吉春 +3 more
doaj
Refining of metallurgical-grade silicon [PDF]
A basic requirement of large scale solar cell fabrication is to provide low cost base material. Unconventional refining of metallurical grade silicon represents one of the most promising ways of silicon meltstock processing. The refining concept is based
Dietl, J.
core +1 more source
Recycling of Mill Scale Into High‐Purity Iron Through Hydrogen‐Based Reduction
steel research international, EarlyView.Mill scale, an iron oxide–rich steel by‐product, is difficult to recycle due to impurities. This study evaluates hydrogen‐based direct reduction and hydrogen plasma smelting reduction as low‐carbon recycling routes. Impurity segregation limits reduction kinetics. Direct reduction achieves 92% conversion in 180 min, while plasma reduction reaches 91% in
Nathalia C. Verissimo +8 more
wiley +1 more source
Considerations on coal gasification [PDF]
Commercial processes for the gasification of coal with oxygen are discussed. The Koppers-Totzek process for the gasification of coal dust entrained in a stream of gasifying agents is described in particular detail.
Franzen, J. E.
core +1 more source
Double Slag Operating Standard for Mitigation of CO2 Emissions in Basic Oxygen Steelmaking
steel research international, EarlyView.Basic oxygen furnace (BOF) steelmaking uses a double slag process (DSP) to produce low‐phosphorus steel. To reduce carbon emissions in a BOF, the hot metal ratio (HMR) must be lowered. The present article describes the optimal conditions for DSP operations under low‐HMR conditions: temperature of 1360 ± 5 °C, total Fe content of 10 ± 2 wt%, basicity (=
Kyung Hwan Kim, Joo Hyun Park
wiley +1 more source