The Experts below are selected from a list of 3714 Experts worldwide ranked by ideXlab platform
Hui Yang - One of the best experts on this subject based on the ideXlab platform.
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Preparation and pore structure characteristics of SiC honeycomb ceramics with macroporous walls
Ceramics International, 2014Co-Authors: Xingzhong Guo, Xiaobo Cai, Lin Zhu, Hui YangAbstract:Abstract SiC honeycomb ceramics with macroporous walls were fabricated by combining Extrusion Molding with pore-forming technology. The Extrusion Molding constructs honeycomb structure with parallel channels, while the iron oxide (Fe2O3, as pore-forming agent) forms interconnected macropores in the channel walls. The density and bending strength of SiC honeycomb ceramics decrease with an increase in Fe2O3 content, while the phase compositions do not vary with the Fe2O3 content. By controlling the addition of pore-forming agent, it is possible to adjust the pore structures in the channel walls for SiC honeycomb ceramics.
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Preparation and properties of SiC honeycomb ceramics by pressureless sintering technology
Journal of Advanced Ceramics, 2014Co-Authors: Xingzhong Guo, Xiaobo Cai, Lin Zhu, Lingjie Zhang, Hui YangAbstract:SiC honeycomb ceramics with parallel channels and macroporous walls were prepared by combining Extrusion Molding with pressureless sintering technology in the presence of starch. The Extrusion Molding constructed honeycomb structure with parallel channels, while the starch formed spherical macropores on the channel walls. The density and bending strength of SiC honeycomb ceramics decreased with the increase of starch content, while the phase compositions did not vary with the starch content. The control in starch addition could adjust the pore structures on the channel walls of SiC honeycomb ceramics.
Chun Hui Liu - One of the best experts on this subject based on the ideXlab platform.
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Extrusion Pressure Analysis of Powder State Material of Non-Plug Solid Conveying in Feeding Section of Single Screw Extruder
Proceedings of the 2015 International Conference on Materials Environmental and Biological Engineering, 2015Co-Authors: Da Li Shi, Chun Hui Liu, Jian Hua QinAbstract:Using a single screw extruder for extruding pure UHMWPE, one of the necessary conditions is to generate large enough Extrusion pressure (4) . This article launches a comprehensive and detailed study of raw material of the pure UHMWPE resin powder, establishes a mathematical model of Extrusion Molding pressure of powder in feeding section, and puts forward the N-lamina model of non-plug solid conveying, which is suitable for the powder state material.
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Discussion on N-Lamina Model of Non-Plug Flow Solid Conveying in Feeding Section by Single-Screw Extrusion Molding
Key Engineering Materials, 2012Co-Authors: Chun Hui Liu, Da Li Shi, Jian Hua QinAbstract:This paper analyzed several important issues in theory of non-plug flow solid conveying, which is about the Extrusion Molding process of the single screw extruder, they are mainly: compressive stress on the front and rear ends of the surface, and ; an increase trend of compressive stress , ; pressure in feeding compression section of the screw, .
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n lamina model of Extrusion pressure of non plug flow solid conveying in feeding section by single screw Extrusion Molding
Advanced Materials Research, 2011Co-Authors: Chun Hui Liu, Da Li ShiAbstract:While Extrusion Molding with single-screw extruder, Extrusion pressure comes into being from feeding section; it is one of the basic conditions to ensure that Extrusion process can be carried on normally, in order to ensure Molding process goes smoothly, it must meet the following requirement: Extrusion pressure generated during the process must be sufficient. Therefore it has certain engineering significance to design structure of a single screw correctly that a mathematical model for formation of Extrusion pressure during single-screw Extrusion Molding will have to be established. This paper conducted a research on theory of Extrusion pressure when powder of pure UHMWPE resin is still in feeding section by Molding in barrel of the single screw extruder specially designed for pure UHMWPE, and established a n-lamina model of powder materials or grain materials which is in feeding section and at the state of non-plug flow solid conveying, and it provided a method to calculate Extrusion pressure of the n-lamina model, thus it enriched and perfected theory of single-screw Extrusion Molding.
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analysis of melting process and numerical simulation of pure uhmw pe pipe based on Molding in barrel technology
Advanced Materials Research, 2009Co-Authors: Chun Hui Liu, Wen Feng GaoAbstract:Ultra High Molecular Weight Polyethylene(UHMW-PE) pipe is a kind of pipe of thermoplastic engineering plastic with excellent comprehensive performance, but the difficulty in Molding is a technical bottleneck which has already affected the extensive application of pipe of pure UHMW-PE. Molding in barrel on the Single screw extruder is a new technology of Extrusion Molding method, which can continuously carry out pipe of pure UHMW-PE, the most significant advantages of the technology are as follows: under the circumstances of no need to feed any additives in the whole forming process, it can continuously carry out pipe of pure UHMW-PE, and the Extrusion Molding speed of it is up to 12 m/h above. During the process of it based on Molding in barrel technology, one of the main factors influencing to whether UHMW-PE pipe can be successfully molded or not is whether the melting process of raw material is adequate and appropriate or not. This article will elaborate melting characteristics of raw material of UHMW-PE, establishment of mathematical model of melting process, and numerical simulation of melting process, which belong to the forming process of Molding in barrel, and will provide a theoretical basis for correctly designing the structure of single screw extruder and temperature control system of single-screw extruder, based on Molding in Barrel Technology.
Xingzhong Guo - One of the best experts on this subject based on the ideXlab platform.
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Preparation and pore structure characteristics of SiC honeycomb ceramics with macroporous walls
Ceramics International, 2014Co-Authors: Xingzhong Guo, Xiaobo Cai, Lin Zhu, Hui YangAbstract:Abstract SiC honeycomb ceramics with macroporous walls were fabricated by combining Extrusion Molding with pore-forming technology. The Extrusion Molding constructs honeycomb structure with parallel channels, while the iron oxide (Fe2O3, as pore-forming agent) forms interconnected macropores in the channel walls. The density and bending strength of SiC honeycomb ceramics decrease with an increase in Fe2O3 content, while the phase compositions do not vary with the Fe2O3 content. By controlling the addition of pore-forming agent, it is possible to adjust the pore structures in the channel walls for SiC honeycomb ceramics.
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Preparation and properties of SiC honeycomb ceramics by pressureless sintering technology
Journal of Advanced Ceramics, 2014Co-Authors: Xingzhong Guo, Xiaobo Cai, Lin Zhu, Lingjie Zhang, Hui YangAbstract:SiC honeycomb ceramics with parallel channels and macroporous walls were prepared by combining Extrusion Molding with pressureless sintering technology in the presence of starch. The Extrusion Molding constructed honeycomb structure with parallel channels, while the starch formed spherical macropores on the channel walls. The density and bending strength of SiC honeycomb ceramics decreased with the increase of starch content, while the phase compositions did not vary with the starch content. The control in starch addition could adjust the pore structures on the channel walls of SiC honeycomb ceramics.
Jian Hua Qin - One of the best experts on this subject based on the ideXlab platform.
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Extrusion Pressure Analysis of Powder State Material of Non-Plug Solid Conveying in Feeding Section of Single Screw Extruder
Proceedings of the 2015 International Conference on Materials Environmental and Biological Engineering, 2015Co-Authors: Da Li Shi, Chun Hui Liu, Jian Hua QinAbstract:Using a single screw extruder for extruding pure UHMWPE, one of the necessary conditions is to generate large enough Extrusion pressure (4) . This article launches a comprehensive and detailed study of raw material of the pure UHMWPE resin powder, establishes a mathematical model of Extrusion Molding pressure of powder in feeding section, and puts forward the N-lamina model of non-plug solid conveying, which is suitable for the powder state material.
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Discussion on N-Lamina Model of Non-Plug Flow Solid Conveying in Feeding Section by Single-Screw Extrusion Molding
Key Engineering Materials, 2012Co-Authors: Chun Hui Liu, Da Li Shi, Jian Hua QinAbstract:This paper analyzed several important issues in theory of non-plug flow solid conveying, which is about the Extrusion Molding process of the single screw extruder, they are mainly: compressive stress on the front and rear ends of the surface, and ; an increase trend of compressive stress , ; pressure in feeding compression section of the screw, .
Da Li Shi - One of the best experts on this subject based on the ideXlab platform.
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Extrusion Pressure Analysis of Powder State Material of Non-Plug Solid Conveying in Feeding Section of Single Screw Extruder
Proceedings of the 2015 International Conference on Materials Environmental and Biological Engineering, 2015Co-Authors: Da Li Shi, Chun Hui Liu, Jian Hua QinAbstract:Using a single screw extruder for extruding pure UHMWPE, one of the necessary conditions is to generate large enough Extrusion pressure (4) . This article launches a comprehensive and detailed study of raw material of the pure UHMWPE resin powder, establishes a mathematical model of Extrusion Molding pressure of powder in feeding section, and puts forward the N-lamina model of non-plug solid conveying, which is suitable for the powder state material.
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n lamina model of Extrusion pressure of non plug flow solid conveying in feeding section by single screw Extrusion Molding
Advanced Materials Research, 2011Co-Authors: Chun Hui Liu, Da Li ShiAbstract:While Extrusion Molding with single-screw extruder, Extrusion pressure comes into being from feeding section; it is one of the basic conditions to ensure that Extrusion process can be carried on normally, in order to ensure Molding process goes smoothly, it must meet the following requirement: Extrusion pressure generated during the process must be sufficient. Therefore it has certain engineering significance to design structure of a single screw correctly that a mathematical model for formation of Extrusion pressure during single-screw Extrusion Molding will have to be established. This paper conducted a research on theory of Extrusion pressure when powder of pure UHMWPE resin is still in feeding section by Molding in barrel of the single screw extruder specially designed for pure UHMWPE, and established a n-lamina model of powder materials or grain materials which is in feeding section and at the state of non-plug flow solid conveying, and it provided a method to calculate Extrusion pressure of the n-lamina model, thus it enriched and perfected theory of single-screw Extrusion Molding.
