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步进电机控制的磁瓦粘接机构设计 被引量:2
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作者 卢华 梁军虎 夏茄程 《科技与企业》 2012年第17期345-346,共2页
本文以摩托车起动电机磁瓦粘接为背景,设计了一种基于步进电机的磁瓦粘接机构,根据磁瓦粘接的特点,设计出了机构的机械传动部件并采用步进电机作为执行元件,通过对步进电机的控制来完成磁瓦粘接的各步动作。
关键词 磁瓦 粘接机构 步进电机 设计
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Bonding mechanism of X10CrNi18-8 with Ni/Al_2O_3 composite ceramic by pressureless infiltration 被引量:7
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作者 杨少锋 陈维平 +2 位作者 韩孟岩 杨超 朱德智 《Journal of Central South University》 SCIE EI CAS 2011年第4期953-959,共7页
Abstract: An alloy steel/alumina composite was successfully fabricated by pressureless infiltration of X10CrNil8-8 steel melt on 30% (mass fraction) Ni-containing alumina based composite ceramic (Ni/Al2O3) at 1 6... Abstract: An alloy steel/alumina composite was successfully fabricated by pressureless infiltration of X10CrNil8-8 steel melt on 30% (mass fraction) Ni-containing alumina based composite ceramic (Ni/Al2O3) at 1 600 ℃. The infiltration quality and interfacial bonding behavior were investigated by SEM, EDS, XRD and tensile tests. The results show that there is an obvious interfacial reaction layer between the alloying steel and the Ni/Al2O3 composite ceramic. The interfacial reactive products are (FexAly)3O4 intermetallic phase and (AlxCry)2O3 solid solution. The interracial bonding strength is as high as about 67.5 MPa. The bonding mechanism of X10CrNi 18-8 steel with the composite ceramic is that Ni inside the ceramic bodies dissolves into the alloy melt and transforms into liquid channels, consequently inducing the steel melt infiltrating and filling in the pores and the liquid channels. Moreover, the metallurgical bonding and interfacial reactive bonding also play a key role on the stability of the bonding interface. 展开更多
关键词 pressureless infiltration steel/alumina composites interface bonding infiltration mechanism
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Adhesive bonding of composite aircraft structures:Challenges and recent developments 被引量:6
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作者 PANTELAKIS Sp. TSERPES K.I. 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2014年第1期2-11,共10页
In this review paper,the challenges and some recent developments of adhesive bonding technology in composite aircraft structures are discussed.The durability of bonded joints is defined and presented for parameters th... In this review paper,the challenges and some recent developments of adhesive bonding technology in composite aircraft structures are discussed.The durability of bonded joints is defined and presented for parameters that may influence bonding quality.Presented is also,a numerical design approach for composite joining profiles used to realize adhesive bonding.It is shown that environmental ageing and pre-bond contamination of bonding surfaces may degrade significantly fracture toughness of bonded joints.Moreover,it is obvious that additional research is needed in order to design joining profiles that will enable load transfer through shearing of the bondline.These findings,together with the limited capabilities of existing non-destructive testing techniques,can partially explain the confined use of adhesive bonding in primary composite aircraft structural parts. 展开更多
关键词 adhesive bonding fracture toughness finite element analysis
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