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  • Trans Tech Publications, Ltd.  (76)
  • 1
    Online Resource
    Online Resource
    Development of 590MPa Grade Hot-Dip Galvannealed DP Steels
    Trans Tech Publications, Ltd. ; 2015
    In:  Advanced Materials Research Vol. 1095 ( 2015-3), p. 83-86
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 1095 ( 2015-3), p. 83-86
    Abstract: Recently, the weight reduction of automotive body and crash safety become much more important factors. In addition, the corrosion resistance must be ensured for any material used in a structural part of automotive components. In an effort to satisfy these requirements, high strength galvannealed DP steels with 590 MPa in tensile strength have been developed in Shougang. Steel chemistry with low Si was designed to reduce the iron oxidation with chemical composition (Si, Mn etc.) and to improve the wettability by liquid zinc. And the alloying elements (Cr, Mo etc.) were added to improve hardenability of sheet to obtain DP microstructure. Newly developed 590MPa grade hot dip galvannealed DP steels have good mechanical properties and hole expansibility. The results revealed the Cr addition effectively suppresses the formation of ferrite during the continuous annealing to improve the hole expansibility of steels. The galvannealing temperatures are increased to improve the hole expansibility of steels by generating the appropriate amount pearlite.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.1095
    DOI: 10.4028/www.scientific.net/AMR.1095.83
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2015
    detail.hit.zdb_id: 2265002-7
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  • 2
    Online Resource
    Online Resource
    Analysis for the Syngas Composition of Gasifier
    Trans Tech Publications, Ltd. ; 2013
    In:  Applied Mechanics and Materials Vol. 300-301 ( 2013-2), p. 1008-1011
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 300-301 ( 2013-2), p. 1008-1011
    Abstract: A simple and convenient model to analyze the composition of the syngas has been implemented. We collect thermodynamic properties data from JANAF tables and Turns’ book. By regression analysis the Gibb’s energy functions of temperature were got. Through these functions, the equilibrium constants as functions of temperature can be deduced for the related chemical reaction in gasification process. With the equilibrium constants, the model to calculate the equilibrium composition for pure carbon gasification has been established. The model was improved from considering only isothermal reaction to including reaction heat balance and then finally with fully energy balance consideration. Since the model has been implemented on general software Excel, it will be very easy for users to apply in further study. Finally, we show how precise the estimation could be by doing comparison with early study and utilize this tool to analyze the heat balance for a specific IGCC cogeneration power plant.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.300-301
    DOI: 10.4028/www.scientific.net/AMM.300-301.1008
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2013
    detail.hit.zdb_id: 2251882-4
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  • 3
    Online Resource
    Online Resource
    A Study of an Administrative System for High Risk Operations-Take a Science Park as an Example
    Trans Tech Publications, Ltd. ; 2014
    In:  Advanced Materials Research Vol. 1051 ( 2014-10), p. 1051-1060
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 1051 ( 2014-10), p. 1051-1060
    Abstract: Since the establishment of science park in Taiwan, the production categories of stationed plants are diversified and most of their operations are in the high risk field. Due to various production categories, the disaster preventions for high risk operations are variable, some are difficult and some are easy.Thus, it makes the disaster preventions difficult in the science park; it needs desperately the stationed factories to carry out a systematic, automatic and strict control method to indeed prevent disasters. It is also the highest standard for the plant operations to achieve a construction worry-free working site but it is still the target for the stationed factories on the science park to work on placing the work safety in the standard operation procedure. Based upon the administration circulation concept, this study proposed the administrative system for the high risk operations to be used on the science park, and this system is divided into four stages which include plan, execution, examination, and correction. Moreover, it also takes a science park as an example to exhibit the execution result of this system which could be referred to by other science parkin performing the administration of high risk operations.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.1051
    DOI: 10.4028/www.scientific.net/AMR.1051.1051
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2265002-7
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  • 4
    Online Resource
    Online Resource
    Research of Microstructure and Mechanical Properties of the Cold Rolled Hot-Dip Galvanizing DP450 Steel with Low Carbon and High Chromium
    Trans Tech Publications, Ltd. ; 2014
    In:  Advanced Materials Research Vol. 1004-1005 ( 2014-8), p. 188-192
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 1004-1005 ( 2014-8), p. 188-192
    Abstract: A new cold rolled hot-dip galvanizing DP450 steel with low carbon and high chromium was designed and effect of the galvanizing processes on the microstructure and mechanical properties was also investigated. At last, it was compared with the referenced DP450 steel which was already produced in industry. The results show that microstructure of the experimental steel consists of regular polygonal ferrite, almost 1% MA island and little bainite. The industrial experimental cold-rolled galvanizing DP steel has excellent combined mechanical properties as follow: yield strength is 306 MPa, tensile strength is 467 MPa and elongation (A80) is 33%. Compared to the referenced steel, the experimental DP450 steel has lower yield strength, better elongation and better forming performance, accordingly.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.1004-1005
    DOI: 10.4028/www.scientific.net/AMR.1004-1005.188
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2265002-7
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  • 5
    Online Resource
    Online Resource
    Analysis of a Tool System with a Four Axes Flexible Fixture
    Trans Tech Publications, Ltd. ; 2010
    In:  Advanced Materials Research Vol. 154-155 ( 2010-10), p. 1348-1355
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 154-155 ( 2010-10), p. 1348-1355
    Abstract: This study is to develop a tool system, which is formed by a series of procedures, modifications, and assemblies, and to learn how processing characteristics are affected and what various processing parameters are. According to the cutting tool compressibility and clamping devices of rigidity and flexibility, three distinct combinations are as follows, that is (1) rigid clamping devices with hard cutting tools, (2) flexibile clamping devices with hard cutting tools, and (3) rigid clamping devices with soft cutting tools. The first are generally cutting processes, while the second are polishing processes and the third produce milling wipe or grinding and polishing compound processes. The cutting part is quite different and may cause different accuracy and removing rate. The mixture processes, such as turn-burnishing, milling-burnishing and grind-polishing, are existed. If certain flexible clamping devices with hard cutting tools are formed, the most suited to this process will be practical benefits. Considering the flexible cutting tools of clamping devices are less systematically designed, this study would mainly focus on the establishment of a systematic design, and actual cutting to explore its applications. In order to take into account the characteristics of flexibility and reduction of the retardation when connected, meanwhile, to meet not only the fixture complexity and availability (being easy) to manufacturing, but also to fit the strength and processing requirements, the systematic design is to create a tool system. After some cutting experiments have been conducted, the results proved that different degrees of flexibility on the workpiece surface would lead to different degrees of accuracy.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.154-155
    DOI: 10.4028/www.scientific.net/AMR.154-155.1348
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2010
    detail.hit.zdb_id: 2265002-7
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  • 6
    Online Resource
    Online Resource
    Finite Element Analysis of Blanking Process by Superimposing Ultrasonic Vibrations
    Trans Tech Publications, Ltd. ; 2011
    In:  Advanced Materials Research Vol. 201-203 ( 2011-2), p. 126-132
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 201-203 ( 2011-2), p. 126-132
    Abstract: The application of ultrasonic vibrations superimposed on wire drawing, deep drawing, upsetting and rolling has been developed in the literature. No attempts have ever been made to develop the application of the ultrasonic vibration to blanking process. This paper reports an investigation into the effects of the superimposed ultrasonic vibrations of the die during the blanking process by finite element software DEFORM-2D. The results are compared with the conventional blanking experiment by Hatanaka and Yamaguchi [7] and the simulations are analyzed with various vibration directions, amplitudes and frequencies. The effects of the ultrasonic vibration on the punch load, flow stress and edge profile are systematically studied. The results show ultrasonic vibration can decrease the punch load and improve the quality of edge profile by increasing the vibration amplitudes and frequencies.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.201-203
    DOI: 10.4028/www.scientific.net/AMR.201-203.126
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2265002-7
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  • 7
    Online Resource
    Online Resource
    Integrity Analysis of Gas Field Water Reinjection Well Wellbore
    Trans Tech Publications, Ltd. ; 2011
    In:  Applied Mechanics and Materials Vol. 121-126 ( 2011-10), p. 2799-2803
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 121-126 ( 2011-10), p. 2799-2803
    Abstract: Finding the right abandoned well (or new drilling ) leakage layer reinjection into the ground is the most effective, the most mature, the most commonly used method in the gas filed water treatment. By simplifying assumptions and the establishment of mathematical model and FEM, simulation and calculation of stress status of the tubing and casing, Analysis of wellbore integrity, for the analysis of the wellbore risk of gas field water reinjection wells and reinjection wells safety operation provide important theoretical support.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.121-126
    DOI: 10.4028/www.scientific.net/AMM.121-126.2799
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2251882-4
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  • 8
    Online Resource
    Online Resource
    Research on the Performance of Plaster Material by Chemical Foaming Method
    Trans Tech Publications, Ltd. ; 2013
    In:  Advanced Materials Research Vol. 830 ( 2013-10), p. 435-438
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 830 ( 2013-10), p. 435-438
    Abstract: The paper introduces a kind of foaming plaster with main raw material of α- gypsum, which is produced by utilizing the chemical reaction principles H 2 O 2 was decomposed. Meanwhile，study the changes of density，flexural strength and compressive strength of plaster material performance with the additives in different ratio. The result showed that water-cement ratio, H 2 O 2 foaming agent and water temperature all affect the performance of the foaming plaster.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.830
    DOI: 10.4028/www.scientific.net/AMR.830.435
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2013
    detail.hit.zdb_id: 2265002-7
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  • 9
    Online Resource
    Online Resource
    On the Practice of the Microstructure Adjustment to Improve the Strength-Plastic Comprehensive Performance of a C-Si-Mn Alloyed High-Strength Steel
    Trans Tech Publications, Ltd. ; 2013
    In:  Advanced Materials Research Vol. 631-632 ( 2013-1), p. 467-471
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 631-632 ( 2013-1), p. 467-471
    Abstract: Four continuous annealing cycles were adopted to get four kinds of multi-phase steels using 0.2C-1.5Si-1.8Mn [wt%] alloyed raw steel and the microstructures and mechanical properties were investigated. The results show that traditional ferrite-martensite dual phase steel has a tensile strength of more than 1000MPa, but has the lowest strength-plastic product of only 18GPa%. The traditional ferrite, bainite and residual austenite TRIP steel has the highest elongation of 31% and hardening exponent of 0.24, but its tensile strength is just over 800MPa. Introducing hard matrix such as acicular bainitc ferrite or martensite to replace the polygonal ferrite matrix, meanwhile introducing metastable austenite, is conducive to obtain high strength and good ductility. Those kinds of modified TRIP steel with hard matrix can reach above 20GPa% of the strength-plastic product on the 1000MPa grade.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.631-632
    DOI: 10.4028/www.scientific.net/AMR.631-632.467
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2013
    detail.hit.zdb_id: 2265002-7
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  • 10
    Online Resource
    Online Resource
    An Implementation of CANopen at Water Electrolysis Hydrogen Generation Station
    Trans Tech Publications, Ltd. ; 2012
    In:  Advanced Materials Research Vol. 443-444 ( 2012-1), p. 377-382
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 443-444 ( 2012-1), p. 377-382
    Abstract: In this paper, the structure and characteristic of CANopen protocol is analyzed, and the implementation in a Water Electrolysis Hydrogen Generation Station (WEHGS) is described in detail, which includes the hardware interface design of CAN controller based on the ARM7 of LPC2292, and the software implementation. Finally, the practice proved that used CANopen in WEHGS is a good way with real time action, more reliability and low cost.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.443-444
    DOI: 10.4028/www.scientific.net/AMR.443-444.377
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2012
    detail.hit.zdb_id: 2265002-7
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