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1)  free-cutting steel
易切钢
1.
Contrast and analysis machinability of free-cutting steel of home and abroad;
国内外易切钢切削性能对比分析
2.
Reach a conclusion, in now available technological condition, control suitable technological parameter so will produce batch Y45S20 free-cutting steel.
本文对通钢一炼钢Y45S20易切钢的开发实践进行了总结,对试生产中“跑硫”的原因进行了分析,并提出了合理控制硫含量的有效途径。
2)  free cutting steel
易切钢
1.
As sulfur contained free cutting steel with the contents of [S]=0.
含硫易切钢中硫含量高达 0 。
2.
Technological properties of semikilled and killed free cutting steels have been compared and mechanical properties of semikilled free,cutting steel have been studied by mathematical statistics,comparing with the national,Japanese and ISO standards.
对半镇静易切钢与镇静易切钢做了工艺性能比较,用数理统计方法研究了半镇静易切钢的力学性能,并同国家标准、日本及国际标准(ISO)进行了比较。
3)  free-machining steel
易切削钢
1.
For the free-machining steel, some earlier investigations showed that the globular inclusions are more helpful than the thready inclusions to improve the machinability.
通过自行设计的高温显微切削装置,在不同温度上对含有球状稀土硫化物夹杂的易切削钢进行了高温显微切削实验,观察到球状稀土硫化物夹杂在显微孔洞扩展过程中发生滚动。
2.
A random fractal model for the crack propagation of free-machining steelsduring impacting transversely was proposed.
建立横向冲击时易切削钢裂纹扩展的随机分形模型,计算了冲击断口的随机分形维数D,比较和分析了D、非随机分形维数与实测分形维数。
4)  free-cutting steel
易切削钢
1.
Inclusion morphology control in medium-carbon calcium sulphur free-cutting steel;
中碳钙硫易切削钢夹杂物形态控制
2.
A Study on Smelting and Properties of Tin-Bearing Free-Cutting Steel;
含锡易切削钢的冶炼和性能研究
3.
Process practice and analysis on free-cutting steel XY45;
易切削钢XY45的工艺实践与分析
5)  free cutting steel
易切削钢
1.
Present Status and Development of Research on Free Cutting Steel at Home and Abroad;
国内外易切削钢的现状和研究进展
2.
Present research status and prospects on free cutting steel at home and abroad;
国内外易切削钢的研究现状和前景
3.
Through researching the chemical composition,properties and smelting process of the XY45 free cutting steel,the productive essentialities of this steel were mastered.
通过对XY45易切削钢的成分、性能、冶炼工艺的探索,掌握了该钢种的生产要点。
6)  Free catting steel/Free cutting stainless steel
易切削钢/易切不锈钢
补充资料:易切钢
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性质:全称易切削结构钢。这类钢可以用较高的切削速度和较大的吃刀量进行高效率生产,满足自动机床和流水作业的需要。又称为自动机床加工用钢,简称自动钢(automatic steel)。由于钢中加入易切削元素,使切削加工易于进行,从而改善了被加工零件的表面粗糙度,不仅提高了生产率,同时也提高了刀具寿命。易切钢主要用来制作受力较小而对尺寸精度、表面粗糙要求严格的标准件,如仪器、仪表、手表零件或汽车、机床和各种机器上使用的零件。易切钢分碳素易切钢、合金易切钢和不锈易切钢三类。根据添加的易切削元素不同,又可分为硫系、硫磷系、钙硫系、铅系和硒系五组。

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