简介:Astudyonprecisioncoldforgingprocessimprovementsforthesteeringyokeofautomobilesbytherigid-plasticfinite-elementmethod;Alloydesigningofhighstrengthsteelsforhotforging;Analysisofthefrictionandwearbehavtourofnotworktoolsteelforforging;Applicationof3DhotforgingprocesssimulationforV6enginecrankshaft;AZ80andZC71/SiC/12pcloseddietorglngsforautomotiveapplications:technicalandeconomicassessmentofpossiblemassproduction
简介:[篇名]Anewdimensionindiscontinuousgalvanizing,[篇名]Anovelapplicationofelectrorefininginamembranecelltoreclaimzincfromthebottomdrossofhotdipgalvanization,[篇名]Abouttheeffectofmeltedzincmassadditivesontheformationoflayersduringhotgalvanizing,[篇名]AdditionofanacrylicrollcoatcrtotheNo.4hotdipgalvanizingline,[篇名]Casehistories:GalvanizedSteelinmarinestructures,[篇名]ComparisonofthepropertiesofgalvanizedweldedJointsproducedbydiffcrentmethods,[篇名]Completeedgetestingofrolledmaterialwithimprovedinspectiontechnique.
简介:Composition.Testing,andControlofHotDipGalvanizingFlux;Corrosionbehaviorofsteelropes;Currentprocessandequipmentdevelopmentsinthefieldofhotdipgalvanizing;Developmentofanewhypereutectoidsteelforhigh-strengthwire;EffectofthesubstratecompositionsonthegrowthofFe-AIinterraciallayerformedduringhotdipgalvanizing;
简介:以PEG20000为表面活性剂在撞击流反应器中制备La2O3超细粉体的前驱体十水草酸镧(La2(C2O4)3.10H2O)。在室温至900°C下研究La2(C2O4)3.10H2O的热分解过程,通过FTIR和DSC-TG对其反应中间物及最终固体产物进行分析。结果表明,该热分解过程由5个连续的反应阶段组成。采用Flynn-Wall-Ozawa(FWO)和Kissinger-Akahira-Sunose(KAS)法对活化能E进行求取,结果显示E值随着α的变化而变化,说明草酸镧的分解为复杂的热分解过程。采用多元非线性回归分析法对动力学方程和相关动力学参数进行拟合,得到动力学模型为G(α)=[1-(1+α)1/3]2。采用该动力学模型求得的活化能平均值与采用FWO法和KAS法计算而得的活化能平均值十分接近,其拟合曲线与样品的热重分析曲线吻合。