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液压滚心轴夹紧。Hydraulic hob mandrel clamping.

这些中心点必须排列成一行，并且保证心轴上没有毛刺的现象出现。The centers must be aligned and the mandrel must be free of burrs.

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M2钢心轴辊的失效模式主要是疲劳断裂。Failure mode of M2 steel mandrel roller is mainly fatigue fracture.

结果表明，金属芯棒的影响是恒定的。The results indicate that the influence of the metal mandrel is constant.

用户可根据需要选用卡瓦式或心轴式悬挂器。Users can choose the mandrel hanger or the slip hanger according to their needs.

薄纸在制卡和会员卡制作中为什么会发生涨缩变形问题？Tissue paper in cards and membership cards in the making of why mandrel deformation?

此心轴溶化之后，在推进剂表面上留有一薄层的合金。After the mandrel is melted, a thin layer of alloy remains on the propellant surface.

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通过利用杠杆式冲床将工件锚定在适当尺寸的润滑心轴上。Mount the workpiece onto a lubricated mandrel of the proper size by using an arbor press.

必须将心轴锚定在中心点和驱动板之间的位置，并且必须使用车床轧头。The mandrel must be mounted between centers and a drive plate and lathe dog must be used.

引用的抛物线芯棒及孔型设计公式可供参考。The formulas introduced for design of the parabolic mandrel and pass are worth referring to.

装在气举阀工作筒中的封闭式气举阀。它用来隔离油管柱与环形空间。A blank gas-lift valve placed in a gas-lift mandrel to isolate the tubing string from the annulus.

使用备用阀杆进行切割，备用阀杆是一根直径与阀杆或盘根切割机具有相同直径的心轴。Cut rings by using a spare stem, a mandrel with the same diameter as the stem or a packing cutter.

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该柱塞包括一个实心螺旋轴、锥形芯轴的机头和优质高合金活门。The plunger consists of a solid spiral mandrel, tapered mandrel nose, and premium high-alloy dart.

本文介绍了液压缸在塑料模抽芯机构中的应用，论述了液压缸的选用、与型芯的连接形式。This paper is about how hydraulic cylinders is used in mandrel drawing mechanism of plastic mould.

介绍了变形态钼合金穿管顶头的研制及其工艺技术。The manufacture and process techniques of the wrought Mo alloy piercing mandrel have been introduced.

提出了小型无缝钢管生产机组选用半浮动芯棒连轧工艺的优势。Advantages of employment of semi-floating mandrel mill to produce small and medium tubes are elaborated.

将测试件在一根芯轴上弯曲180度，使其纵向轴线垂直于芯轴的轴线。Bend the test piece 180 degrees over a mandrel with its longitudinal axis normal to the axis of mandrel.

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这里所用的滚轴的滚珠数量是非固定的，他取决于弯曲的角度。The mandrel used here is flexible with a number of balls and with its front end put far foard in the bend.

顶出力大，顶杆应有足够强度，顶出应均匀，顶杆不宜兼作型芯。Top effort, mandril should have sufficient strength, should head out of uniform, mandrel not served as core.

立杆接长时，接头应错开，至顶层后再用两种长度的顶杆找平。Take a long pole, the joints should be staggered, with two lengths to the top of the mandrel and then leveling.