机电专业英语 中级 谭雪松 杨财荣 unit 9.ppt

Unit9ext1BasicUnderfeedMouldText2FeedSystemText3Grammars(语法)Test4TEXT1InjectionMoldingMachineNewWordsandPhrases(生词和短语)Notes(课文注释)ReadingMaterials(阅读材料)NewWordsandPhrases(生词和短语)melted[meltid],使软化reciprocatingscrew往复螺杆plasticize[5plAstisaiz][kEm5preFEn],压缩screw-flight螺杆的螺纹convert[kEn5vE:t],转换semifluid[semi5flu:id],半流质的barrel[5bArEl][5tFeimbE],房间trip[trip];使跳闸;切断switch[switF],转换,转变cylindervalve汽缸阀clampingforce锁紧力antiflowback防倒流阀aruleofthumb单凭经验的方法oilreservoir油箱,储油器hopper[hCpE]。【例】feedhopper:进料斗electricalcontrolpanel电气设备控制板safetyguard安全门controlconsole控制台barrel[5bArEl],pressionzone受压区feedzone进给区Notes(课文注释)[1]:螺杆同时具有注射和塑化的功能。binationof两个短语,actas意为“充当”,acombinationof意为“……的组合”。[2]Afterthefeedzone,thescrewnightdepthisgraduallyreduced,press。翻译:经过喂入区后,螺杆螺旋部分的深度逐渐降低,使树脂原料压实。press作伴随状语。[3]esfilled,itforcesthescrewback,:当熔体充满螺杆前部区域时,螺杆在熔体压力的作用下后退,触动限位开关使液压缸工作。本句中that引导了一个定语从句。[4]:防倒流阀能够阻止受压熔体倒流进螺杆的螺旋区。短语prevent…from意为阻止,使避免。[5]:通常靠经验来决定塑件所需要的锁模力总吨数****语aruleofthumb,意为单凭经验的方法ReadingMaterials(阅读材料)PressureCasting(压力铸造)Beryllium-,binedwithareasonablehardness(BrinellHardnessNumberofabout250)whichmakesitbesuitableforcertaintypesofcavityandcore,andforothermouldparts,suchashot-runnerunitsecondarymuzzles.