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简介：Abstract:Extrusionisanefficientmeasuretoimprovethetextureandphysic-chemicalpropertiesofbrownrice.Thepolynomialdegreetwomodelofextrusiontechnologicalparametersandgelatinizeddegree,waterabsorptionindex,watersolubleindexandmoisturecontentofextrudedmatterwasobtainedbymethodsofsinglefactorandresponsesurfacemethodology,R2=0.9649,0.8745,0.9079,0.8677.Theoptimaltechnoiogica!parametersofbrownriceextrusionwerefiguredoutasfollows:moisturecontentofbrownrice,11.42%,speedofscrew,30rpm,feedingspeed,and20rpm.

简介：为了在舷窗调查衣袋的效果，在金属流动上死，在忍受出口和挤出负担的die的温度被对比与传统死没有衣袋在的设计更低死。二个不同多洞舷窗有或没有衣袋死在更低死被设计。并且挤出过程基于商业软件DEFORM-3D被模仿。模拟结果证明衣袋能被用来有效地以金属流动在腿下面调整金属流动和特别利益。另外，在适用的die的最大的温度和山峰挤出负担减少，它显示增加挤出速度和生产率的可能性。

简介：德国Kiefel股份公司将于2006年3月15日和16日两天往德国弗来欣（Freilassing）市举办其紧凑型热成型包装设备展示会。届时，与会的来自包装工业领域的客户可以看到Kiefe的最新紧凑型热成型包装设备。

简介：Amagneticandtemperaturefield-coupledmathematicalmodelisproposedtocalculatetheinductionheatingprocessofadiscardsubstitutionblockforbillethotextrusionprocess.Themathematicalmodelisvalidatedbycomparingsimulationresultswithtemperaturemeasurementsrecordedduringphysicalmodeling.Basedonsystematicalanalysisofcalculationresults,aquantitativesawtoothinductionpowercurvewasproposedtorealizetheaimofachievingthebestdistributedtemperaturefieldintheblockwithintheshortestinductiontime.

简介：聚苯乙烯(PS)/triphenyl磷酸盐(TPP)composites被暂停聚合准备并且融化挤出，和火焰retardance和机械性质的比较研究被执行。结果比为获得PS/TPP的好dispersity融化挤出证明暂停聚合是一种更好的技术合成。TPPnanoparticles，是在尺寸的约50nm，被暂停聚合同质地并且一致地在一步舞在PS矩阵驱散。然而，PS/TPP合成部分被聚结，不规则地展出塑造了微米规模粒子由于融化挤出。与melt挤出相对照，由从21.8%增加到22.6%的暂停聚合的PS/TPPnanocomposite的有限的氧索引(LOI)，和点火(TTI)的时间增加了12.3%，山峰热版本率(PHRR)在8.5%减少了，并且全部的热版本(THR)在11.0%减少了。由暂停聚合的PS/TPPnanocomposite的机械性质也增加了。张力的力量，在裂缝的延伸，和曲折力量分别地增加了36.4%，8.5%，和108%。

简介：Toexploretheapplicationofsevereplasticdeformationforgrainrefinementinsteelproduction,anewmethodcalledcontinuousfrictionalangularextrusion(CFAE)wasappliedtorefinethegrainofinterstitial-freesteel.Thedeformationwascarriedoutatroomtemperatureandindividualsheetspecimenswereprocessedindifferentnumberofpasses.Anoverallgrainsizeof200nmwasachievedafter8passesandtheproportionofhigh-angleboundariestothetotalboundarieswasmorethan60%.ThroughthecharacterizationofhighresolutionEBSD,X-raydiffraction(XRD)andhardnesstesting,thispaperdiscussedtheevolutionofmicrostructuresandtexturesduringdeformationandexploredthedevelopmentdirectionofthemethod.

简介：AZ31Mg合金的微观结构进化在变化隧道期间，尖挤出(CCAE)被调查。AZ31Mg合金的谷物在在523K使变形的CCAE以后从500m显著地被精制到15m。脱臼在挤出的起始的阶段被导致，他们自己重排在变丑期间形成脱臼边界和亚谷物边界。当通过有紧张的水平变化隧道的标本增加了时，亚边界演变到高角度谷物边界(HAGB)。谷物精炼的过程能被描述为连续动态恢复和再结晶(CDRR)。

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简介：AbstractObjective:To review current literature and experience with Gore-Tex® implant extrusion following medialization thyroplasty, as well as to report the unique case of Gore-Tex® implant extrusion following revision medialization thyroplasty.Methods:Review of existing literature and description of personal experience with unique case of Gore-Tex® implant extrusion following revision medialization thyroplasty.Results:Review of existing literature found no prior reported cases of Gore-Tex® implant extrusion following revision medialization thyroplasty. Risk factors for implant extrusion include the pressure of the implant on insertion and the inability to secure the implant. Cases of implant extrusion can be managed operatively via an endoscopic or via an external open approach.Conclusion:This is the first reported case of Gore-Tex® implant extrusion following revision medialization thyroplasty. Careful consideration should be given in revision medialization thyroplasty as additional implant material may cause increased pressure, a risk factor for implant extrusion.

简介：ＡＮｅｗＫｉｎｄｏｆＳｔｒｕｃｔｕｒａｌＭｏｄｅｌ：ＣｏｎｓｔｒａｉｎｅｄＬａｔｅｒａｌＥｘｔｒｕｓｉｏｎｉｎＷｅｓｔｅｒｎＯｒｄｏｓＢａｓｉｎａｎｄＩｔｓＡｄｊａｃｅｎｔＲｅｇｉｏｎｓＬｉｕＳｈａｏｆｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｌｏｇｙ，...

简介：Anewmethodusingleadcoatedglassfibertoproducecontinuouswireforbatterygridofelectricvehicles(EVs)andhybridelectricvehicles(HEVs)wasintroduced.Underequalflow,boththemaximumandminimumtheoreticalvalueofgapsizewerestudiedandestimationequationwasestablished.Theexperimentalresultsshowthatthegapsizeisakeyparameterforthecontinuouscoatingextrusionprocess.Itsmaximumvalue(Hmax)is0.24mmandtheminimumone(Hmin)is0.12mm.Atagapsizeof0.18mm,themaximumofmetalextrusionperunitoftimeandoptimalcoatingspeedcouldbeobtained.

简介：NordsonExtrusionDiesIndustries已为挤出涂覆（淋膜）模头和内堵式幅宽调节装置开发出了增强系统，使加工者能够在涂覆低熔体强度聚合物的情况下缩减厚边，同时保持均匀涂覆量——在此类树脂上通常无法同时做到这两点。

简介：Semicontinuousequal-channelangularextrusion(SC-ECAE)isanovelsevereplasticdeformationtechniquethathasbeendevelopedtoproduceultrafine-grainsteels.InsteadofexternalforcesbeingexertedonspecimensintheconventionalECAE,drivingforcesareappliedtodiesinSC-EACE.Thedeformationofinterstitial-free(IF)steelwasperformedatroomtemperature,andindividualspecimenswererepeatedlyprocessedatvariouspasses.Anoverallgrainsizeof0.55μmwasachievedafter10passes.DuringSC-ECAE,themaintexturesofIFsteelincluded{111}<110>,{110}<112>,{112}<111>,{110}<111>,and{110}<001>Atanearlystage,increasingdislocationsinducenewtexturesandincreaseintensity.Whenthedeformationcontinues,low-angleboundariesareformedbetweendislocationcellbands,whichcausesomedislocationcellbandstochangetheirorientation,andtherefore,theintensityofthetexturesbeginstodecrease.Aftermorepasses,theintensityoftexturescontinuestodecreasewithhigh-angleboundaries,andthesub-grainsindislocationcellbandscontinuouslyincrease.Thepresentstudyreportstheevolutionoftexturesduringdeformation;thesewereexaminedandcharacterizedusinghigh-resolutionelectronbackscattereddiffraction(EBSD)inafieldemissionscanningelectronmicroscope.Themechanismsoftextureevolutionarediscussed.

简介：相等的隧道(ECAP)处理的尖紧迫和常规挤出(前)被用于Mg-12Gd-3Y-0.5Zr(wt%)镁合金以便在机械性质评估潜在的改进。ECAP实验在380污瀠潲散被进行吗？

简介：Inthisstudy,Almatrixcompositesreinforcedby7.5and15vol.%B4CparticlesandalsomonolithicAl（AlwithouttheB4Cparticles）wereproducedbywetattritionmillingandsubsequenthotforwardextrusionprocesses.Themicrostructureofthecomposites,evaluatedbyscanningelectronmicroscopy（SEM）,showedthattheB4CparticleswereproperlydistributedintheAlmatrix.MechanicalpropertiesoftheAI/B4CcompositesandmonolithicAlwereinvestigatedbytensile,wearandhardnesstests.TheresultsrevealedthatwithincreasingcontentofB4Cparticles,thetensilestrengthandmicrohardnessofcompositesincreasedbuttheelongationdecreased.Inaddition,thetensilestrengthandmicrohardnessofcompositesampleswerehigherthanthoseofmonolithicAl.ThedensitymeasurementsrevealedthatthedensityofcompositesdecreasedwithincreasingcontentoftheB4Cparticles.

简介：Polyvinylidenefluoride(PVDF)hollowfibermembranespreparedfromspinningsolutionswithdifferentpolyvinylpyrrolidone(PVP)contents(1%and5%)atdifferentextrusionrateswereobtainedbywet/dryphaseprocesskeepingallotherspinningparametersconstant.InspinningthesePVDFhollowfibers,dimethylacetamide(DMAc)andPVPwereusedasasolventandanadditive,respectively.Waterwasusedastheinnercoagulant.Dimethylformamide(DMF)andwater(30/70)wereusedastheexternalcoagulant.Theperformancesofmembraneswerecharacterizedintermsofwaterflux,soluterejectionforthewetmembranes.ThestructureandmorphologyofPVDFhollowfiberwereexaminedbyBETadsorption,dry/wetweightmethodandscanningelectronmicroscopy(SEM).ItisfoundthattheincreaseinPVPcontentandextrusionrateofspinningsolutioncanresultintheincreaseofwaterfluxanddecreaseofsoluterejection.Theimprovementsofinterconnectedporousstructureandporesizeareinducedbyshear-thinningbehaviorofspinningsolutionathighextrusionrates,whichcouldresultintheincreaseofwaterfluxofhollowfibermembranes.Theincreaseofextrusionratealsoleadstotheincreaseofmembranethicknessduetotherecoveryeffectofelasticpropertyofpolymerchains.

简介：基于FE，模拟被建议预言热短小裂缝和表面的出现的一个损坏预言方法在液体固体挤出过程裂开。这个方法综合批评温度标准和可锻的损坏模型，它被用来预言热短小裂缝和表面的开始分别地产品击碎的Cockcroft与Latham。有热转移以及可锻的损坏的变丑的Acoupling模拟被执行在Csf/AZ91Dcomposites的损坏行为上调查挤出温度和挤出速度的效果。半固体地区向变丑地区逐渐地移动，穿孔机下降，这被结束。在出口的温度上升的振幅从温度在给定的穿孔机排水量在不变的挤出期间随挤出速度的增加增加的起始的营舍死。以便在composites的早期的融化温度以外阻止产品的表面温度，批评挤出速度随挤出温度的增加被减少，不那样，热短小裂缝将发生。最大的损坏价值与增加挤出速度或挤出温度增加。理论结果由Deform获得了?-2D模拟与实验同意很好。

简介：TheeffectoftitaniumadditiononthemicrostructureandmechanicalpropertiesofbrassCu40Znhasbeenstudiedviathepowdermetallurgy(P/M)route.Thewater-atomizedCu40Zn—1.0wt%Tialloypowderwasconsolidatedatdifferenttemperaturesintherangeof400—600℃usingsparkplasmasintering(SPS)andhotextrusionsubsequently.Resultsshowthatthesuper-saturatedsolidsolutiontitaniumelementinrapidlycooledbrassCu40Znpowdercreatedhighchemicalpotentialforaprecipitatereaction,showingsignificantgrainrefinementeffectsontheconsolidatedCu40Znmatrix.Consequently,excellentmechanicalpropertieswereobtainedbyprecipitationhardeningandworkhardeningaftersinteringandextrusion,withyieldstrengthof390MPa,ultimatetensilestrengthof617MPa,andVickersmicro-hardnessof192HV,whichare28.7%,23.4%,and23.9%highervaluesthanthoseofextrudedCu40Znbrass,respectively.