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Online since: August 2012
Authors: Marcos A.S. Barrozo, Carlos Henrique Ataíde, Rafaella F. Rodrigues, Sergio Leite, Juliana G. Oliveira
The success of a granulation depends on the liquid-to-solid rate relationship and the proportions of these materials in the drum [11].
Water may be introduced with the moisture added to the solid material, and may be sprayed directly onto the materials in the granulator, or dispersed with steam.
Steam is considered efficient for increasing granulation because it disperses more readily over the solid materials.
ACKNOWLEDGEMENTS The authors would like to thank Vale Fertilizantes for available raw materials, laboratories and equipment for experimental work.
Barrozo: Brazilian Journal of Chemical Engineering Vol. 21 (2004), p. 59
Water may be introduced with the moisture added to the solid material, and may be sprayed directly onto the materials in the granulator, or dispersed with steam.
Steam is considered efficient for increasing granulation because it disperses more readily over the solid materials.
ACKNOWLEDGEMENTS The authors would like to thank Vale Fertilizantes for available raw materials, laboratories and equipment for experimental work.
Barrozo: Brazilian Journal of Chemical Engineering Vol. 21 (2004), p. 59
Online since: March 2014
Authors: Elke Hombergsmeier, Vitus Holzinger, Ulrike C. Heckenberger
A center-cracked tension M(T) specimen with a width of 160 mm (Fig. 3) was selected as a typical specimen for the investigation of the crack propagation behavior of fuselage materials.
Figure 1: SEN specimen Figure 2: Peening sequence of the SEN test specimen (courtesy of MIC) Materials.
Journal of Fatigue, 2008
James, Selective Reinforcement to Improve Fracture Toughness and Fatigue Crack Growth Resistance in Metallic Structures, 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, 19 - 22 April 2004, Palm Springs, California [4] Jon E.
Hackel, The effects of process variations on residual stress in laser peened 7049 T73 aluminum alloy, Materials Science and Engineering A349 (2003) pp. 279-291, Elsevier 2002 [5] E.
Figure 1: SEN specimen Figure 2: Peening sequence of the SEN test specimen (courtesy of MIC) Materials.
Journal of Fatigue, 2008
James, Selective Reinforcement to Improve Fracture Toughness and Fatigue Crack Growth Resistance in Metallic Structures, 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, 19 - 22 April 2004, Palm Springs, California [4] Jon E.
Hackel, The effects of process variations on residual stress in laser peened 7049 T73 aluminum alloy, Materials Science and Engineering A349 (2003) pp. 279-291, Elsevier 2002 [5] E.
Online since: October 2010
Authors: Amélia Giovana Fargnoli, Karina Matugi, Isabela Martinatti, Mônica Lopes Aguiar
Introduction
In order to reduce air pollution and waste of important and expensive materials, many solutions have been created.
Materials and Methods Materials.
Table 1 shows the materials used in this study and their characteristics.
Table 1: Data concerning materials used in this study.
Cheng: Aerosol Science and Technology Vol. 29 (1998), p. 315
Materials and Methods Materials.
Table 1 shows the materials used in this study and their characteristics.
Table 1: Data concerning materials used in this study.
Cheng: Aerosol Science and Technology Vol. 29 (1998), p. 315
Online since: March 2014
Authors: Hao Qi, Fang Chao
Linear value is defined by SDMAT1 material model and non-linear value is defined by SDMAT6 material model.
Material of Model.
The material of body frame is Q235 simulated by material 24 with key word *mat_piecewise_linear_plasticity.
Rigid material is adopted for rim and elastic material is adopted for the other parts of wheel.
Journal of ShangHai Translation University, 2005.(9): 1452-1456
Material of Model.
The material of body frame is Q235 simulated by material 24 with key word *mat_piecewise_linear_plasticity.
Rigid material is adopted for rim and elastic material is adopted for the other parts of wheel.
Journal of ShangHai Translation University, 2005.(9): 1452-1456
Online since: February 2015
Authors: Shi Min Wang, Dong Quan Zhao, Rong Qi Deng
The Research on Metal Milling about down Milling and Inverse Milling for Application
Shimin Wang a, Dongquan Zhao b and Rongqi Deng c
Zaozhuang Vocational College of Science & Technology, Tengzhou 277500, China
awsms@163.com, bzdq701018@163.com, cdengrongqi@163.com
Keywords: Down milling; inverse milling; cutter compensation instructions.
See milling workpiece materials and surface roughness choose way. processing soft materials, such as copper, had better use conventional milling, compared to climb milling finish will be much better.
Should try to adopt suitable milling, milling, especially for that difficult to machine materials adopt suitable milling not only can reduce the cutting deformation, lower cutting force and power consumption.
With G41 and G42 programming process can ensure the size tolerance, form tolerance and surface roughness requirements, but with G41 instruction programming processing parts surface roughness than with G42 instruction programming processing parts surface roughness is ideal, especially when the workpiece materials for alloy steel (20), programming with G42 command, conventional milling processing, some slight vibration of workpiece, serious when mild chew milling-tool phenomenon, must choose in advance when programmers in the programming using suitable milling and inverse milling, rather than isolated use milling-tool repairing around instruction in programming.
Journal of practice and exploration, 2009; 12, p.170
See milling workpiece materials and surface roughness choose way. processing soft materials, such as copper, had better use conventional milling, compared to climb milling finish will be much better.
Should try to adopt suitable milling, milling, especially for that difficult to machine materials adopt suitable milling not only can reduce the cutting deformation, lower cutting force and power consumption.
With G41 and G42 programming process can ensure the size tolerance, form tolerance and surface roughness requirements, but with G41 instruction programming processing parts surface roughness than with G42 instruction programming processing parts surface roughness is ideal, especially when the workpiece materials for alloy steel (20), programming with G42 command, conventional milling processing, some slight vibration of workpiece, serious when mild chew milling-tool phenomenon, must choose in advance when programmers in the programming using suitable milling and inverse milling, rather than isolated use milling-tool repairing around instruction in programming.
Journal of practice and exploration, 2009; 12, p.170
Online since: December 2012
Authors: Jian Cheng Sun, Bo Jun Wang, Wen Zhong Zhao
Experiment methods
Experiment mainly explore the composition of the fly ash, slag, water reducer, conservation of different raw materials affect on such as concrete early-age work performance, early-age crack resistance.
According to the "People's Republic of China building materials industry standards JC / T 951-2005 cement mortar cracking performance test method [2], survey and evaluate the early-age crack resistance of concrete slurry.
Part of the cement replaced by fly ash [5], the total heat of hydration of cementitious materials and the basic hydration peak temperature decreases with increasing fly ash content
Popular Science,2005,9:68-69.
Journal of Building Materials,2005,6:646-652 (in chinese) [5] Meizhu Chen, Liang Lv .
According to the "People's Republic of China building materials industry standards JC / T 951-2005 cement mortar cracking performance test method [2], survey and evaluate the early-age crack resistance of concrete slurry.
Part of the cement replaced by fly ash [5], the total heat of hydration of cementitious materials and the basic hydration peak temperature decreases with increasing fly ash content
Popular Science,2005,9:68-69.
Journal of Building Materials,2005,6:646-652 (in chinese) [5] Meizhu Chen, Liang Lv .
Online since: June 2010
Authors: Jin Qiang Du, Zhi Ming Yu, Yu Ting He, Rong Hong Cui
Introduction
LY12-CZ aluminum alloy materials are widely used in aviation field.
During use, these materials are subjected to high alternating stresses and impacts that cause damage growth and, ultimately, structural failure.
Besides, it is also difficult to use this technique to detect cracks appear in nonconductive material structures [6].
One is the conductive sensing coating on the top, and the other is the isolated layer consisting of Al2O3 materials in the interconnect layer.
Schubert: Journal of Acoustic Emission, Vol. 22(2004), p. 147 [3] N.
During use, these materials are subjected to high alternating stresses and impacts that cause damage growth and, ultimately, structural failure.
Besides, it is also difficult to use this technique to detect cracks appear in nonconductive material structures [6].
One is the conductive sensing coating on the top, and the other is the isolated layer consisting of Al2O3 materials in the interconnect layer.
Schubert: Journal of Acoustic Emission, Vol. 22(2004), p. 147 [3] N.
Online since: July 2011
Authors: Jia Hui Peng, Mei Li, Ting Jian Ning
Study on Influence Factors of Co-crystallized P2O5 in Phosphogypsum Formation and its Mechanism
Mei Li1,a, Jiahui Peng1,b, Tingjian Ning1,c
1College of Material Science and Engineering, Chongqing University, Chongqing 400045, China
a ninglong727106@163.com, bpengjh@cqu.edu.cn, cwww999com@126.com
Keywords: Phosphogypsum, Co-crystallized P2O5, Wet-prcess Phosphoric Acid, Supersaturation Ratios, Formation Mechanism.
Materials and experimental methods Materials Phosphate rock is provided by a phosphate factory in Yunnan of China, which is milled to powder and 85% over 100 mesh sieve.
Becker, Phosphates and Phosphoric Acid: Raw Materials, Technology and Economics of the Wet Processes,Marcel Decker Inc., New York, pp. 116-169 (1989)
Housing Materials and Applications,2001,29 (4):38-41 (in Chinese) [5] Jiahui Peng, Tizhi Wan, Ling Tang, et al.
Organic Matters and P2O5 in Crystal Lattice and Their Influence on Properties of Phosphogypsum[J].Journal of Building Materials,2003,6(3):221-226 (in Chinese) [6]W.H.
Materials and experimental methods Materials Phosphate rock is provided by a phosphate factory in Yunnan of China, which is milled to powder and 85% over 100 mesh sieve.
Becker, Phosphates and Phosphoric Acid: Raw Materials, Technology and Economics of the Wet Processes,Marcel Decker Inc., New York, pp. 116-169 (1989)
Housing Materials and Applications,2001,29 (4):38-41 (in Chinese) [5] Jiahui Peng, Tizhi Wan, Ling Tang, et al.
Organic Matters and P2O5 in Crystal Lattice and Their Influence on Properties of Phosphogypsum[J].Journal of Building Materials,2003,6(3):221-226 (in Chinese) [6]W.H.
Online since: February 2026
Authors: Aghogho Mboutidem Obukonise, Osedome Adokiye Paul Ukwadi
Ethical concerns about using food as fuel raw materials have diverted attention to the use of inedible feedstock alternatives like municipal and industrial waste, wood, and agricultural residues [5].
Materials and Methods Materials.
Pairwise comparisons of grouped data Cost Analysis The equipment set up and raw materials used where all locally sourced.
Materials Today Bio, Vol. 16(No. 100445)
Applied Sciences, Vol. 12(No. 17: 8884)
Materials and Methods Materials.
Pairwise comparisons of grouped data Cost Analysis The equipment set up and raw materials used where all locally sourced.
Materials Today Bio, Vol. 16(No. 100445)
Applied Sciences, Vol. 12(No. 17: 8884)
Online since: September 2018
Authors: Dmitry Lipchansky, Yuliya Murashkina
A disadvantage of products and materials based on epoxy resins is high flammability.
Morikawa, Evolution of toxic gases from burning polymeric materials in a small-scale box model, Fire Mater. 12 (1988) 43-49
Dubois, New prospects in flame retardant polymer materials: From fundamentals to nanocomposites, Mater.
Mai, Recent developments in the fire retardancy of polymeric materials, Prog.
Series: Materials Science and Engineering 149 (2016) 012120
Morikawa, Evolution of toxic gases from burning polymeric materials in a small-scale box model, Fire Mater. 12 (1988) 43-49
Dubois, New prospects in flame retardant polymer materials: From fundamentals to nanocomposites, Mater.
Mai, Recent developments in the fire retardancy of polymeric materials, Prog.
Series: Materials Science and Engineering 149 (2016) 012120