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Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0745-8

Abstract: In this work, we proposed a cost-effective melting extrusion system for lunar regolith-based compositeThe high-pressure extrusion system is helpful to enhance the interface affinity of polymer binders withHigh-pressure melt extrusion for lunar regolith composite can increase the effective loading fraction

Keywords： in-situ resource utilization     melt extrusion molding     lunar regolith-based composites    

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density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: Density variation during the injection molding process directly reflects the state of plastic melt andExperiments with different process conditions are conducted, including different melt temperature, injectionmeasurement, non-destructive, high accuracy, low cost, and is of great application value for the injection molding

Keywords： ultrasonic measurement     melt density     in-situ measurement     injection molding    

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsHowever, the melt flow process in a closed cavity becomes more complex because of the moving cavity boundaryduring compression and the nonlinear problems caused by non-Newtonian polymer melt.The non-Newtonian characteristics and compressibility of the polymer melt were considered.method and compared with those of injection molding.

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

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Utilizing melt crystallization fundamentals in the development of a new tabletting technology

Ahmed ABOUZEID,Sandra PETERSEN,Joachim ULRICH

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 346-352 doi: 10.1007/s11705-014-1443-9

Abstract: Increasing production effeciency and lowering costs are some of the many advantages melt crystallizationMelt crystallization is a purification (separation) process.

Keywords： phase separation     melt crystallization     tablets     process optimization    

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Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 66-76 doi: 10.1007/s11465-017-0417-2

Abstract: As an advanced manufacturing technology, the glass lens molding process has been recognized as a low-costprofile deviation of the glass lens are greatly affected by various key technologies for glass lens molding, including glass and mold-die material forming, mold-die machining, and lens molding.These key technical factors, which affect the quality of the glass lens molding process, are systematicallytechnical bottlenecks and problems, as well as to predict the potential applicability of glass lens molding

Keywords： aspheric glass lens     mold-die manufacturing     lens molding     molding process simulation    

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Permeability analysis and seepage process study on crystal layer in melt crystallization with fractal

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 435-441 doi: 10.1007/s11705-011-1139-3

Abstract: In this paper a porous media seepage model was applied to analyze the permeability and study the seepage process of crystal pillar formed in the preparation of electronic grade phosphoric acid (EGPA). By inspecting the seeping process, the structure parameter of crystal pillar could be obtained. Two basic ideal models (perfectly separated model and perfectly connected model) were presented and a characterized factor was introduced to modify the model. A good simulation result was obtained which met the experiment result well. The relationship between and permeability were also discussed. The characterized factor showed potential application on optimizing process.

Keywords： melt crystallization     porous media     fractal     permeability     hyperpure material     simulation    

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Modeling limit force capacities of high force to volume lead extrusion dampers

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 609-622 doi: 10.1007/s11709-021-0724-x

Abstract: Lead extrusion dampers are supplemental energy-dissipation devices that are used to mitigate seismicand lower-bound force capacity estimates from analytical mechanics based on direct and indirect metal extrusionequations are strictly functions of HF2V device geometric parameters, lead material properties, and extrusionThe upper-bound estimates from direct and indirect extrusion are denoted as (FUB,1,estimates are denoted as (FLB, FLB,1) based on the combination of extrusion

Keywords： extrusion     lead dampers     upper and lower bound     analytical modelling     limit force    

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Simulation of cottonseed cake melt flow in metering zone of a single screw extruder

Hong HE, Jianguo ZHOU,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 263-269 doi: 10.1007/s11705-009-0276-4

Abstract: Research on the extrusion of natural polymers (food, feed, etc.) is relatively new due to the complexphysicochemical transformations of raw materials, although plastics melt conveying and transport haveThe structure and composition, rheological behavior as well as extrusion processing of natural polymer

Keywords： quasi-three-dimensional     rheological     viscosity     processing     influence    

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Kinetic roughening transition and missing regime transition of melt crystallized polybutene-1 tetragonal

Motoi YAMASHITA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 125-134 doi: 10.1007/s11705-009-0001-3

Abstract: and lateral growth rate of polybutene-1 ( -PB1) have been investigated for crystallization from the melt

Keywords： isotactic polybutene-1     tetragonal phase (form Ⅱ)     melt crystallization     growth rate     kinetic    

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Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 3-17 doi: 10.1007/s11465-017-0408-3

Abstract: Precision glass molding (PGM) has thus been developed to realize an efficient manufacture of such opticalThis makes a PGM process sensitive to its molding temperature.

Keywords： precision glass molding     optical lens     constitutive modeling     optimization     manufacturing chain     Industry    

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Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 96-106 doi: 10.1007/s11465-018-0498-6

Abstract:

A three-stage molding process involving microcellular injection molding with core retraction and an

Keywords： thermoplastic polyurethane     microcellular injection molding     cavity expansion     compressive strength     hysteresis    

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Lamellar thickness transition of melt-crystallized polybuten-1 tetragonal phase: configurational change

Motoi YAMASHITA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 26-32 doi: 10.1007/s11705-009-0002-2

Abstract: crystal thickness of isotactic polybutene-1 ( -PB1) have been investigated for crystallization in the melt

Keywords： isotactic polybutene-1     tetragonal phase     crystal thickness     melt growth     chain folding     small angle X-ray    

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Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 46-65 doi: 10.1007/s11465-017-0425-2

Abstract: This paper presents an overview of optical microstructure fabrication through glass molding and highlightsthe applications of optical microstructures in mold fabrication and glass molding.Moreover, the latest advancements in glass molding technologies are detailed, including new mold materialsand their fabrication methods, viscoelastic constitutive modeling of glass, and microstructure moldingprocess, as well as ultrasonic vibration-assisted molding technology.

Keywords： optical microstructure     microgroove     microlens     glass molding process     single-point diamond cutting    

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In-Vessel Melt Retention of Pressurized Water Reactors: Historical Review and Future Research Needs Review

Weimin Ma, Yidan Yuan, Bal Raj Sehgal

Engineering 2016, Volume 2, Issue 1,   Pages 103-111 doi: 10.1016/J.ENG.2016.01.019

Abstract:

A historical review of in-vessel melt retention (IVR) is given, which is a severe accident mitigationfrom the back-fitting of the Generation II reactor Loviisa VVER-440 in order to cope with the core-meltThe most influential phenomena on the IVR strategy are in-vessel core melt evolution, the heat fluxesFor in-vessel melt evolution, past focus has only been placed on the melt pool convection in the lowerpool formation, may all contribute to the final state of the melt pool and its thermal loads on the

Keywords： Pressurized water reactor     Severe accident     In-vessel melt retention     Debris formation     Debris remelting     Melt pool formation     Melt pool thermal-hydraulics     Critical heat flux    

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Effect of extrusion temperature on the physical properties of high-silicon aluminum alloy

YANG Fuliang, GAN Weiping, CHEN Zhaoke

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 120-124 doi: 10.1007/s11465-007-0021-y

Abstract: Al-30Si and Al-40Si are fabricated with air-atomization and vacuum-canning hot-extrusion process.hermeticity and thermal expansion coefficients of the material are measured, and the relationship between extrusionprepared with this method is as high as 99.64% of the theory density, and increases with elevating extrusionAt the same time, thermal conductivity varies between 104-140 W/(m " K); with the extrusion temperature

Keywords： coefficient     hermeticity     temperature     relationship     air-atomization    

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Title Author Date Type Operation

Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Journal Article

density measurement for plastic injection molding via ultrasonic technology

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

Utilizing melt crystallization fundamentals in the development of a new tabletting technology

Ahmed ABOUZEID,Sandra PETERSEN,Joachim ULRICH

Journal Article

Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Journal Article

Permeability analysis and seepage process study on crystal layer in melt crystallization with fractal

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Journal Article

Modeling limit force capacities of high force to volume lead extrusion dampers

Journal Article

Simulation of cottonseed cake melt flow in metering zone of a single screw extruder

Hong HE, Jianguo ZHOU,

Journal Article

Kinetic roughening transition and missing regime transition of melt crystallized polybutene-1 tetragonal

Motoi YAMASHITA

Journal Article

Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Journal Article

Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Journal Article

Lamellar thickness transition of melt-crystallized polybuten-1 tetragonal phase: configurational change

Motoi YAMASHITA

Journal Article

Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Journal Article

In-Vessel Melt Retention of Pressurized Water Reactors: Historical Review and Future Research Needs

Weimin Ma, Yidan Yuan, Bal Raj Sehgal

Journal Article

Effect of extrusion temperature on the physical properties of high-silicon aluminum alloy

YANG Fuliang, GAN Weiping, CHEN Zhaoke

Journal Article