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1)  key hole
键孔[槽]
2)  keyway in holes
孔内键槽
1.
A practical method for maching keyway in holes;
孔内键槽实用加工新方法
3)  deep hole and long keyway
深内孔键槽
4)  keyslot
键槽
1.
The reason of planer tool concession produced in planing the inner ape rture keyslot of wheel hub of two wheel tractor is analyzed, and the planing lim it deep and the intension of the tool holder are calculated.
分析了手扶拖拉机车轮毂内孔键槽刨削加工时产生“让刀”现象的原因 ,并对内孔键槽的刨削极限深度、刀杆强度等进行计算与校核 ,提出了轮毂内孔键槽刨削的最佳切削参数。
2.
Drawing line tool for plane keyslot of shaft parts can simplify drawing line process,avoid parts transportation between working maching and drawing line platform, make convenience for regulation during working keyslot and enhance the working efficiency.
本文介绍的轴类工件平键槽划线工具简化了轴类工件平键槽的划线工序,避免了工件在加工机床与钳工划线平台间的搬运,方便了键槽加工时的找正工作,提高了工
5)  keyway [英]['ki:wei]  [美]['ki,we]
键槽
1.
Design of measurer for azimuth request between hole keyway and gear tooth;
孔内键槽与齿有方位要求的量具设计
2.
The jig and cutter positioning method of the processing keyway on shifts;
轴类零件的键槽加工夹具及对刀方法
3.
An analysis of the keyway symmetry error evaluation methods;
键槽对称度误差的评定方法分析
6)  keyseat
键槽
1.
In the thesis the author analyzes the current punching situation of keyseat and mark hole when making electric motor iron core;puts forward the concept of using quickchange die-block to improve the quality and reduce the costs;designs and provides the basic structure of quickchange die-block and expounds the main points of quickchange die-block production and application.
分析了电机铁芯制造时键槽、记号孔冲制的现状;提出了使用快换冲模来提高质量、降低成本的构想;设计并提供了快换冲模的基本结构;阐述了快换冲模制作和使用的要点。
2.
The main reasons are that small root\'s radiums of keyseatIn which caused heat treatment stress concentration at keyseat root,lead failure.
而该轴环形键槽R小,在热处理时应力大而集中,是导致早期断裂的主要原因。
补充资料:-戊内酯、3-甲基丁内酯、咖吗-戊内酯
CAS: 108-29-2
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃

中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯

英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton

性质描述: 无色至微黄色液体。凝固点-31℃,沸点205-206.5℃,83-84℃(1.73kPa),相对密度(25/25℃)1.0578,折光率(nD25)1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。

生产方法: 由不饱和羧酸通过闭环反应来合成,例如乙酰乙酸与硫酸共热,或乙酰丙酸在镍、铜等催化剂存在下加氢。

用途: γ-戊内酯有较强的反应能力,可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂,用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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