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Online since: August 2016
Authors: Ai Min Zhao, Shi Peng Ruan, Yong Chao Li, Ming Yi Guo, Zhao Yong Song
Effect of Boron and Chromium on Hardenability in 0.33% C Cold
Heading Steel
Shi Peng Ruan1, 2, 3,a, Ai Min Zhao1,b, Yong Chao Li 2, 3,c, Ming Yi Guo 2, 3,d, Zhao Yong Song 2, 3,e
1.Metallurgy Engineering Research Institute; University of Science and Technology Beijing, Beijing 100083, China
2.
Experimental materials and procedures Table 1 lists the chemical compositions of the steels examined.
Selection analysis of five kinds of cold-heading steel materials[J].RECHULI JISHU YU ZHUANGBEI, 2010,31(1):26-31
Application of artificial neural network to predicting hardenability of gear steel[J].Journal of iron and steel research, international ,2006,13(6):71-73
Experimental materials and procedures Table 1 lists the chemical compositions of the steels examined.
Selection analysis of five kinds of cold-heading steel materials[J].RECHULI JISHU YU ZHUANGBEI, 2010,31(1):26-31
Application of artificial neural network to predicting hardenability of gear steel[J].Journal of iron and steel research, international ,2006,13(6):71-73
Online since: June 2021
Authors: Zhi Gang Yang, Yong Qiang Zhang, Xiao Jun Fang, Li Liu
Experiment
Material.
The experimental material was J55 tubing and casing steel, and its chemical composition (mass fraction, %) is shown in Table 1.
Research on crevice corrosion of oilfield materials in saturated CO2 salt solution[D].
Hubei: Huazhong University of Science and Technology, 2008
Journal of Chinese Society for Corrosion and protection, 2007, 27(4): 247-251
The experimental material was J55 tubing and casing steel, and its chemical composition (mass fraction, %) is shown in Table 1.
Research on crevice corrosion of oilfield materials in saturated CO2 salt solution[D].
Hubei: Huazhong University of Science and Technology, 2008
Journal of Chinese Society for Corrosion and protection, 2007, 27(4): 247-251
Online since: March 2012
Authors: S. Naveen, Ganesh Kumar Nithyanandam
Tompkins (2003) stated that 10-30% of material handling cost (MHC) can be reduced by having an effective facility layout.
Most of the time, the shop floor faces several problems (wastes) such as strewn with materials, semi-finished products, work-in-progress (WIP) inventories, tools and bins which result in not enough free space for the operators to move freely, accidents keeps occurring on the shop floor, workers take a lot of time in finding equipments, tools and drawings as a result affects the quality of the product.
Ergonomics is the science of designing the job to fit the employee body than physically forcing the employee body to fit the job (OSHA, 2000).
International Journal of Quality and Reliability Management, 1999, 16 (8): 756-771
Toyota Material Handling: Toyota Production System and What it means for business.
Most of the time, the shop floor faces several problems (wastes) such as strewn with materials, semi-finished products, work-in-progress (WIP) inventories, tools and bins which result in not enough free space for the operators to move freely, accidents keeps occurring on the shop floor, workers take a lot of time in finding equipments, tools and drawings as a result affects the quality of the product.
Ergonomics is the science of designing the job to fit the employee body than physically forcing the employee body to fit the job (OSHA, 2000).
International Journal of Quality and Reliability Management, 1999, 16 (8): 756-771
Toyota Material Handling: Toyota Production System and What it means for business.
Online since: December 2007
Authors: Jie Wang, Li Qiang Wang, Yan Shi, Zu Kang Lu, Hua Zheng
There are two kinds of material in inner and outer
of the capillary respectively, which have different optical properties.
[1] [2] Fig. 1 Diagram of LIFD system (Details of the component parts can be found in the model of detecting system) Simulation results In order to meet the factual LIFD system, the capillaries in model were composed of two kinds of materials; inner of them was replaceable linear polyacrylamide (LPA) gel [9] which was assumed uniformity and without the fluorescent dye; since the stray light was only the research subject, the filter was taken off in simulation.
Because of the reflection of capillary walls, gel and material of lens, part of the light beam went back through the mirror with a hole to the PMT and was recorded on the observation surface.
Journal of Zhejiang University: Engineering Science.
[1] [2] Fig. 1 Diagram of LIFD system (Details of the component parts can be found in the model of detecting system) Simulation results In order to meet the factual LIFD system, the capillaries in model were composed of two kinds of materials; inner of them was replaceable linear polyacrylamide (LPA) gel [9] which was assumed uniformity and without the fluorescent dye; since the stray light was only the research subject, the filter was taken off in simulation.
Because of the reflection of capillary walls, gel and material of lens, part of the light beam went back through the mirror with a hole to the PMT and was recorded on the observation surface.
Journal of Zhejiang University: Engineering Science.
Online since: April 2011
Authors: Jin Xing Lai, Xiao Wei Liu, Guang Long Zhang
Material of lining was nondestructive detected with sound locater.
The material belongs to elastic-plastic model.
According to Mohr-Coulomb yield criterion adopted in this paper, whether the material reaches damage state is judged by internal stress state, and the material is processed by elastic model if it does not reach damage state, and otherwise it is processed in accordance with the elastic-plastic theory.
Acknowledgements This study was supported by the Natural Science Foundation Committee (NSFC) of China (Grant No. 51008029) and the Technology Development Research Fund of Chang’an University (Grant No. 06Q01 ) .
Using short- and long-term transients in seepage discharge and chemistry in a mountain tunnel to quantify fracture and matrix water fluxes[J],Journal of Hydrology,2000, 23(4) : pp142-161 [3]Wang Tiemeng,Crack Control in Engineering Structure[M].Beijing: China Architecture and Building Press,2002 [4]Zhang Changwei,Analysis of secondary lining cracks in twin arch tunnels[J],West-China Exploration Engineering,2002,14(5):pp93-94 [5]Kitagava T, Iida H, TadenumaY,et al.
The material belongs to elastic-plastic model.
According to Mohr-Coulomb yield criterion adopted in this paper, whether the material reaches damage state is judged by internal stress state, and the material is processed by elastic model if it does not reach damage state, and otherwise it is processed in accordance with the elastic-plastic theory.
Acknowledgements This study was supported by the Natural Science Foundation Committee (NSFC) of China (Grant No. 51008029) and the Technology Development Research Fund of Chang’an University (Grant No. 06Q01 ) .
Using short- and long-term transients in seepage discharge and chemistry in a mountain tunnel to quantify fracture and matrix water fluxes[J],Journal of Hydrology,2000, 23(4) : pp142-161 [3]Wang Tiemeng,Crack Control in Engineering Structure[M].Beijing: China Architecture and Building Press,2002 [4]Zhang Changwei,Analysis of secondary lining cracks in twin arch tunnels[J],West-China Exploration Engineering,2002,14(5):pp93-94 [5]Kitagava T, Iida H, TadenumaY,et al.
Online since: October 2012
Authors: Li Ouyang, Wei Liu
The partition is constructed of an insulation material, which can srore heat and reduce heat loss to the flow dead zone of the underfloor space.
In addition, based on the above results, the partition constructed of the same insulation material is also installed in ceiling.
ASHRAE Journal.
Berkeley: Center for the Built Environment (CBE). (2002), p. 20-40 [7] Wei Liu, Aiwu Fan, Xiaoming Huang: Theory and application of heat and mass transfer in porous media(Science Press, Beijing 2006) [8] P.
Schlunder: Thermal conductivity of granular materials at moderate temperature.
In addition, based on the above results, the partition constructed of the same insulation material is also installed in ceiling.
ASHRAE Journal.
Berkeley: Center for the Built Environment (CBE). (2002), p. 20-40 [7] Wei Liu, Aiwu Fan, Xiaoming Huang: Theory and application of heat and mass transfer in porous media(Science Press, Beijing 2006) [8] P.
Schlunder: Thermal conductivity of granular materials at moderate temperature.
Online since: October 2007
Authors: Günter Gottstein, Lasar S. Shvindlerman
Stability of Granular Microstructures
The stability of a grain microstructure is an important issue and of special interest for
nanocrystalline materials.
However, for a system with impurities the situation is different from pure materials.
There is no experimental evidence so far that the grain boundary energy can be negative, except for the observation that grain growth in nanocrystalline materials is often arrested, which, however may be due to several reason.
Bolling: Surface Science Vol. 31 (1972), p. 27
Stadelmann: Journal of Microscopy Vol. 190 (1998) , p. 204
However, for a system with impurities the situation is different from pure materials.
There is no experimental evidence so far that the grain boundary energy can be negative, except for the observation that grain growth in nanocrystalline materials is often arrested, which, however may be due to several reason.
Bolling: Surface Science Vol. 31 (1972), p. 27
Stadelmann: Journal of Microscopy Vol. 190 (1998) , p. 204
Online since: May 2010
Authors: Ling Li, Lan Liu
Department of Physics, Jinan University, Guangzhou, Guangdong, 510632
2.Institute of Materials, South China University of Technology, Guangzhou, Guangdong,510632
email:tll@jnu.edu.cn
Keywords: High-dispersed nano-ZnO, Natural rubber, Vulcanization, Mechanical properties,
Anti-aging properties
Abstract: High-dispersed nano-ZnO were used for alternating ordinary ZnO in the vulcanization
process of nature rubber.
At present ZnO is almost a necessary raw material in all of the rubber factories.
The basic formula: NR 100; Black carbon: 22; CaCO3 (white):100, CaCO3( light):33;Oil(N-10): 65; zinc oxide 5; stearic acid 3; CZ 1.2, M 0.25; Sulfur 2.12; Antioxidant: 1.0; RD:1.5; DPO:0.5 The data of specimens are listed in table 1, main raw materials are same, the sample formula are same but only change the dosages and the kinds of zinc oxide.
References [1] Yang Qingzhi editor-in-chief, Practical technology of rubber, chemical industry Press, 2005 [2] Zhao Guang-xian,Nano-ZnO and its application in rubber, China Rubber, 18 (8) :18-21 [3] Ai-You wei, ting-xian Wei, Feng-Wei Yang etc., Research of the influence of nano-zinc oxide on the performance of rubber, Rubber Industry, 2001,48:524-527 [4] Wu Xi, The affect mechanism and application of nano-zinc oxide in rubber, Tire Industry, 2004,24 (2) :67-70 [5] Chen Yue-hui, Zhao Guang-xian, The reduction mechanism and application of nano-zinc oxide in rubber, Journal of Shanghai University of Science and Technology, 2002,6 (2) 96-99 [6] G.
Elucidated by model compound studies, J. of Applied Polymer Science, 2005,95(6):1388-1404 [7] Wen-zong XU, De-chu MA, Li LIANG, The influence of nano-zinc oxide on the cross-linking reaction and thermal stability of rubber[J].
At present ZnO is almost a necessary raw material in all of the rubber factories.
The basic formula: NR 100; Black carbon: 22; CaCO3 (white):100, CaCO3( light):33;Oil(N-10): 65; zinc oxide 5; stearic acid 3; CZ 1.2, M 0.25; Sulfur 2.12; Antioxidant: 1.0; RD:1.5; DPO:0.5 The data of specimens are listed in table 1, main raw materials are same, the sample formula are same but only change the dosages and the kinds of zinc oxide.
References [1] Yang Qingzhi editor-in-chief, Practical technology of rubber, chemical industry Press, 2005 [2] Zhao Guang-xian,Nano-ZnO and its application in rubber, China Rubber, 18 (8) :18-21 [3] Ai-You wei, ting-xian Wei, Feng-Wei Yang etc., Research of the influence of nano-zinc oxide on the performance of rubber, Rubber Industry, 2001,48:524-527 [4] Wu Xi, The affect mechanism and application of nano-zinc oxide in rubber, Tire Industry, 2004,24 (2) :67-70 [5] Chen Yue-hui, Zhao Guang-xian, The reduction mechanism and application of nano-zinc oxide in rubber, Journal of Shanghai University of Science and Technology, 2002,6 (2) 96-99 [6] G.
Elucidated by model compound studies, J. of Applied Polymer Science, 2005,95(6):1388-1404 [7] Wen-zong XU, De-chu MA, Li LIANG, The influence of nano-zinc oxide on the cross-linking reaction and thermal stability of rubber[J].
Online since: June 2013
Authors: Xue Hong Gan, Shui Liang Huang, Shi Mei Liu
Glass should meet lighting, energy saving and cost requirements when used in engineering process, energy saving targets should be comprehensive effect of heat preservation and thermal insulation.Ordinary glass is often used as building materials in traditional architecture and is always the dense channel of energy in the annual process of building.When heat rays coming in and out (Fig 2 ),ordinary glass will have a high absorption of infrared radiation from indoor objects and radiate outward immediately, leading to a large outflow of heat in winter.
Acknowledgements The Project Supported by Zhejiang Provincial Natural Science Foundation of China (Grant No.
ENERGY Saving in Buildings, Vol. 12(2008), pp. 56-59 [2] Ge Dazhong, Fang Ming, Out-Windows Material of Energy Saving in the Application of Hot Summer and Cold Winter Building.
JOURNAL OF NATURAL RESOURCES, Vol. 23(2008), pp.764-772
Research& Application of Building Materials, Vol. 10(2010), pp. 10-12
Acknowledgements The Project Supported by Zhejiang Provincial Natural Science Foundation of China (Grant No.
ENERGY Saving in Buildings, Vol. 12(2008), pp. 56-59 [2] Ge Dazhong, Fang Ming, Out-Windows Material of Energy Saving in the Application of Hot Summer and Cold Winter Building.
JOURNAL OF NATURAL RESOURCES, Vol. 23(2008), pp.764-772
Research& Application of Building Materials, Vol. 10(2010), pp. 10-12
Online since: July 2019
Authors: Ye Da Lian, Lu Liu, Z. Xu, Q. Gao, Z. Wen
Introduction
In order to meet the increasing demand of the inlet temperature of turbine gas for modern aeroengine, advanced nickel-based superalloy materials, new cooling technology and thermal barrier coatings are widely used in hot end components, especially nozzle guide vanes and turbine blades [1-3].
Experimental Procedure The experimental material in this paper is directionally solidified superalloy IC10.
It is a typical LI2 type multiphase material and its chemical composition is shown in Table 1.
Materials at High Temperature, 2014, pp. 18-26
CIRP Journal of Manufacturing Science and Technology, 2014, pp. 11-19.
Experimental Procedure The experimental material in this paper is directionally solidified superalloy IC10.
It is a typical LI2 type multiphase material and its chemical composition is shown in Table 1.
Materials at High Temperature, 2014, pp. 18-26
CIRP Journal of Manufacturing Science and Technology, 2014, pp. 11-19.