简介:摘要:GB/T 18102-2020《浸渍纸层压木质地板》国家标准于2021年7月1日实施。作者对GB/T 18102-2020和GB/T 18102-2007两版的国家标准从适用范围、引用文件、理化性能、检验方法等方面进行比对和分析,重点在于加深对标准的理解和认识,更好应用于生产和检验检测过程中,把好出厂检验关,切实提高产品质量。
简介:摘要:花岗片麻岩储层油气储量丰富,其有效动用已经成为渤海湾构造等油田增储上产的重要保证。目前花岗片麻岩储层压裂改造存在施工泵压高,压裂加砂困难,易砂堵等难题,基于花岗片麻岩储层特征研究形成酸损降破和缝内暂堵转向体积压裂工艺,达到最大程度储层改造目的,为经济、高效动用片麻岩储层提供技术参考。
简介:Adie&moldproductionprivatesupplementaryschool;Applicationofconsolidationmethodtotherecyclingofgrindingswarfofbearingsteel;Effectofin-planebiaxialstrainpathsonthevariationofnormalanisotropyandtextureofsteelsheet;Fatiguepropertiesofhigh-strengthhotrolledsteelsheetswithpunchedhole;Improvementoffatiguestrengthofhigh-tensilestrengthsteelsheetwithpiercedholebycoining(firstreport;Proposalforreducingpressworkingloadandhighlyaccurateevaluationofspringbackerrorinbendingautomobilesheetmetal
简介:Acomparativestudyofnewmagnesiumalloysdevelopedforelevatedtemperatureapplicationsinautomotiveindustry,Adevelopmentofvirtualprototypingmanufacturingsystemforhighpressurediecastingprocesses,Afinishmachiningstrategyforrapidmanufacturedpartsandtools,Anewmanufacturingtechnologyforinductionmachinecopperrotors,AStudyonPerformanceEvaluationandImprovementofSteeringWheelwithMgDieCastingCore,AstudyonprocessesandmechanicalpropertiesofdiecastA.380V6engineblocks.
简介:Diespray,diecostanddielife;DIE-CASTCOPPERROTORSFORIMPROVEDMOTORPERFORMANCE;DiecastabilityofMg-AI-SrHighTemperatureCreepResistanceAlloysBasedonLaboratoryEvaluations&ComponentDieCastingTrials;Diesandtoolsforhighperformanceapplications;EarlyResidualStressDevelopmentInAluminumDieCastingDies