金属管材表面研磨强化试验装置的总体和结构设计研究
Title Study on the overall design and structure of metal tube surface grinding strengthening test equipment
Abstract
Under surface mechanical attrition treatment(SMAT) mode,Surface
nanocrystallization can be achieved by severe plastic deformation, access
to the gradient structure of surface Nano-crystals, grain size increases
along the thickness .Surface nanocrystallization can make the overall
improvement of the surface hardness of materials and the mechanical
properties , at the same time,material surface activity are greatly
improved.Metal tube surface test device is a kind of equipment which can
make a metal superplastic deformation through the pipe surface grinding
and processing and gain grain fine Nano-Crystal layer on the metal
surface, so as to trengthen metal materials surface . The device mainly
consists of surface pressure device, surface rotation driving device,
test-piece strengthening the mould and hydraulic drive and control system
and so on.Surface compression unit, surface rotating device all adopt the
method of hydraulic drive.
Keywords: test unit;surface strengthening; nanocrystallization;grinding
目 次
1 引言 1
1.1 表面工程1
1.2 表面纳米化1
1.3 表面纳米化制备技术2
1.4 研磨技术简介3
1.5 研磨技术国内外研究现状及发展趋势4
1.6 论文的主要工作5
2 总体方案设计 6
2.1 设计思路6
2.2 两种设计方案6
2.2.1 方案一6
2.2.2 方案二8
2.3 方案对比9
3 整体参数设计11
3.1 液压泵的选择11
3.2 液压马达的选择12
3.3 蜗轮蜗杆参数设计13
4 零部件结构设计14
4.1 传动分析及强度校核14
4.1.1 扭矩的传递14
4.1.2 轴向负载传递22
4.2 其余零部件 26
4.3 本章小结 29
5 液压系统设计 31
5.1 液压加压系统 31
5.2 液压旋转驱动系统33
结论 36
致谢 37
参考文献38
附录 A 部分零部件设计图39
附录 B 试验装置三视图及三文图 52
1 引言
1.1 表面工程
表面工程是经表面预处理后，通过表面涂覆、表面改性或表面复合处理，改变固
体金属表面或非金属表面的化学成分、组织结构、形态和（或）应力状态等，以获取
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