scholarly journals AlN Precipitation of Al-killed Steel for Cold-rolled Sheets in Continuous Casting and Direct Rolling Process

1988 ◽  
Vol 74 (7) ◽  
pp. 1509-1516
Author(s):  
Kichi NAKAZAWA ◽  
Osamu AKISUE ◽  
Kazuhiko FUDABA ◽  
Masahiko ODA
Keyword(s):  
Continuous Casting ◽  
Rolling Process ◽  
Direct Rolling ◽  
Cold Rolled

Microstructural Characterization of Non-Oriented Low Silicon Steel Produced by Compact Strip Production

2010 ◽  
Vol 168-170 ◽  
pp. 827-831
Author(s):  
Yun Li Fu ◽  
Kai Ming Wu
Keyword(s):  
Electron Microscopy ◽  
Continuous Casting ◽  
Microstructural Characterization ◽  
Casting Process ◽  
Rolling Process ◽  
Compact Strip Production ◽  
Fine Grained ◽  
Direct Rolling ◽  
Hot Rolled ◽  
Strip Production

The macro structures, microstructures, textures and precipitates in non-oriented electrical steels were studied by means of optical microscopy, scanning electron microscopy (SEM), electron back scattering dispersion (EBSD) and transmission electron microscopy (TEM) in the specimens produced by conventional continuous casting process and thin slab continuous casting and direct rolling process. Results showed the macro structures in as-cast slabs and the microstructures in as-rolled strips were more fine-grained and uniform with regard to compact strip production (CSP) process, compared with that in conventional process. No obvious texture was observed in hot rolled strips produced by CSP process.

scholarly journals Hot Cracking of Low Alloy Steels in Simulated Continuous Casting-direct Rolling Process

1987 ◽  
Vol 73 (7) ◽  
pp. 876-883
Author(s):  
Yasuhiro MAEHARA ◽  
Ken NAKAI ◽  
Kunio YASUMOTO ◽  
Tateshi MISHIMA
Keyword(s):  
Continuous Casting ◽  
Rolling Process ◽  
Hot Cracking ◽  
Low Alloy Steels ◽  
Alloy Steels ◽  
Direct Rolling

A Framework of a Continuous Injection Direct Rolling Process for Precision Manufacturing Plastic Plates with Patterned Microstructures

2014 ◽  
Vol 625 ◽  
pp. 489-495
Author(s):  
Ling Bao Kong ◽  
Ji Bin Li ◽  
Chi Fai Cheung ◽  
Yan Lou ◽  
Chang Sheng Wang ◽  
...  
Keyword(s):  
Research Work ◽  
Rolling Process ◽  
Plastic Plate ◽  
Precision Manufacturing ◽  
Injection Nozzle ◽  
Injection Process ◽  
Ultra Precision ◽  
Direct Rolling ◽  
Continuous Injection ◽  
Plastic Injection

This paper presents an integrated roller embossing process named Continuous Injection Direct Rolling (CIDR) process. The CIDR process is similar to Continue Casting Direct Rolling (CCDR) process for metal material. The process consists of Plastic Injection Module, Injection Nozzle, Precision Rolling Module, and Automatic Coiling Module. In the proposed CIDR process, the plastic plate with microstructured pattern is produced by the integrated injection and rolling process, which is different from the current rolling or plastic injection process. Some key technologies including injection nozzle design, roller design, roller coupling, and ultra-precision machining of rollers, are presented. An on-machine measurement method is also proposed and presented to avoid the incontinence and errors caused by disassembling the roller workpiece for off-line measurement. The results of the pilot study are also discussed. The research work provides an enabling solution for precision manufacturing plastic plate and film with microstructured patterns.

Evaluation of Blister Behavior for U10Mo Mini Fuel Plates With Cold Rolled Foils

2012 ◽  
Author(s):  
Hakan Ozaltun ◽  
Samuel J. Miller
Keyword(s):  
Cold Rolling ◽  
Thermal Cycling ◽  
Cold Work ◽  
Rolling Process ◽  
Foil Thickness ◽  
Rolled Plate ◽  
Stress Profile ◽  
Wide Range ◽  
Threshold Temperatures ◽  
Cold Rolled

This article aims to provide possible mechanical causes for the lowered blister temperatures of RERTR-12 and AFIP-4 fuel plates. Recent experimental investigations to determine the blister threshold temperatures have indicated lower thresholds for similar plates with comparable burn-up histories. Measured blister temperatures of roughly 100 °C lower compared to the previously tested plates may not be satisfactory for some plates. The primary differences between recent experiments and previous tests are: (1) An aggressive cold work process involving large thickness reduction ratios without normalization or full annealing (2) Subjecting the plates to a thermal cycling process prior to irradiation, and finally (3) A primarily frontal neutron flux as opposed to a transverse flux profile. It is believed that the stress field has implications to blister behavior. To investigate this claim, the stress-strain states for the fabrication procedure were evaluated. First, the residual stress profile caused by the cold rolling process was calculated. Modeling of the cold rolling process has shown confirmation of residual stresses of considerable magnitude and the existence of stress gradients with respect to foil thickness prior to the HIP process. Once calculated, these stress profiles were used as an initial condition for the fabrication process. Due to the variation in stress fields depending on location at which a foil is cut from the cold rolled plate, three representative regions were selected and implemented in the HIP simulation. Variation in stresses, depending on location of the cold rolled plate as well and variation in the through-thickness, results in a wide range of mechanical stress states. This suggests that inhomogeneous irradiation and thermal cycling behavior will result from the use of cold rolled foils. Additionally, these results suggest that there will be fundamental differences in fuel plate behavior observed between plates fabricated with cold rolled foils versus hot rolled and fully annealed foils.

scholarly journals Development of High-Performance Copper Alloy Wire on a Continuous Casting and Rolling Process

Materia Japan ◽  
2016 ◽  
Vol 55 (3) ◽  
pp. 114-116
Author(s):  
Hitoshi Nakamoto ◽  
Norikazu Ishida ◽  
Yoshiaki Hattori ◽  
Keiichiro Oishi ◽  
Tetsuya Ashida
Keyword(s):  
Continuous Casting ◽  
Copper Alloy ◽  
High Performance ◽  
Rolling Process ◽  
Alloy Wire

Optimization of Rolling Modes on the Mill 1700 of JSC "ArselorMittal Temirtau" with Aim to Increase Quality of Sheet Rolled Products

2015 ◽  
Vol 1095 ◽  
pp. 786-794
Author(s):  
A.B. Naizabekov ◽  
V.A. Talmazan ◽  
S.N. Lezhnev ◽  
E.A Panin ◽  
А.S. Erzhanov ◽  
...  
Keyword(s):  
Surface Defects ◽  
Mechanical Damage ◽  
Rolling Process ◽  
Rolled Sheet ◽  
Strip Rolling ◽  
Technological Factors ◽  
Second Stage ◽  
Sheet Surface ◽  
Cold Rolled

Used the influence of technological factors of the rolling process on the intensity of the rolling out of the defect to determine the value of deformation and the coefficient of use of the plasticity resource. Introduced the notion of residual coefficient of plasticity resource in the second stage of transformation of the defect. Found that the causes of deterioration of the quality of cold-rolled sheet can be numerous defects of mechanical origin, caused by mechanical damage of the sheet surface. Conducted an analysis of profiles rolling modes, rolled on the mill 1700. With the use of existing methods calculated DUPR on workshop modes of rolling of specified profiles with and without considering the surface defects. Carried an optimization of the modes of strip rolling with surface defects.

Simulation to the Temperature Field for Continuous Casting Billet during Direct Rolling of Free-Heating

2014 ◽  
Vol 941-944 ◽  
pp. 1890-1894
Author(s):  
Guang Zheng Luo ◽  
Xin Liu ◽  
Ying Zhi ◽  
Xiang Hua Liu
Keyword(s):  
Heat Transfer ◽  
Finite Element Method ◽  
Finite Element ◽  
Temperature Field ◽  
Continuous Casting ◽  
Transfer Process ◽  
Heat Transfer Process ◽  
Direct Rolling ◽  
Cutting Point ◽  
Continuous Casting Billet

The temperature field of continuous casting billet (CC-billet) is important to carry out the research on direct rolling of free-heating (DROF). The solidification and the heat transfer process of CC-billet from crystallizer to cutting point were studied by finite element method (FEM).The casting speed was improved in order to get reasonable temperature field during DROF.

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