硬钢

By mechanical test of the steel strip and simulation of strip deformation in tension leveling using finite element method,characteristic features of the strip were obtained,such as;high yield stress,high yield ratio and low plastic elongation as the basic reason of difficulty in tension leveling and shape control.

通过对全硬钢的力学性能的测定和拉矫变形行为的有限元仿真，发现屈服应力大、屈强比高以及断裂时塑性延伸小等特性是造成镀锌后全硬带钢拉矫困难和板形难以控制的根本原因。

On the basis of establishing planar cutting model and cutting equation, through analyzing the rigidity of technical system infrequency chart, change cutting coefficient and the angle of cutter etc, emphasis measuring and analyzing hard turning 45 hardened steel the damaged layer of finished surface cutting force the roughness on finished surface and researching on the mechanism of wear and damage of cutter.

在分析二元切削模型和切削方程的基础上，进一步研究了切削变形及其影响机理；通过工艺系统刚性的频谱分析，改变切削用量、刀具几何参数等因素，测量并分析研究了精切淬硬钢的切削力、已加工表面粗糙度、加工硬化及表面残余应力及刀具的磨损情况，基本形成了精加工45~#淬硬钢的切削基础理论。

In alloy steels the kind and amount of alloying element influences only the hardenability (the ability of the workpiece to be hardened to depths) of the steel and does not affect the hardness except in unhardened or partially hardened steels.

除了非淬硬钢或部分淬硬钢外，合金钢中合金元素的种类及含量仅影响钢的淬透性(工件被硬化到深层的能力)而不影响硬度。

In this paper a series of experimental data were analyzed when chamfered PCBN cutting tools were used to turn the hardened GCr15 bearing steel.The correlations between chamfer angle and cutting forces as well as tool wear were observed.

超硬刀具材料作为近年新兴的刀具材料，越来越为人们所了解和熟悉，其中PCBN刀具在加工淬硬钢和铸铁等材料时表现出了更为优异的性能。

Finish-cut turning, fine boring, finish-turning, finish-milling, shave-planing, fine machining of hardened steel, abrasive materials, hard and grey cast iron, Si-Al-metals, plastics, electrode carbon, etc.

对硬钢、耐磨料、硬铸铁、灰铸铁、硅铝合金、塑料、炭精棒等进行精密车削、精细镗孔、精细铣削、刨平、等的精细机械加工。

RKX Finish-cut turning, fine boring, finish-turning, finish-milling, shave-planing, fine machining of hardened steel, abrasive materials, hard and grey cast iron, Si-Al-metals, plastics, electrode carbon, etc.

对硬钢、耐磨料、硬铸铁、灰铸铁、硅铝合金、塑料、炭精棒等进行精密车削、精细镗孔、精细铣削、刨平、等的精细机械加工。

All moving components should use hardened steel: all slides should be installed with hardened or lubricated alloy wear plates and gibes, and with positive slide retainer.

所有移动的零件应使用硬钢料，行位必须用硬垫板和硬线条，而且必须有限位及定位锁。

Lubricated alloy wear plates and gibs, and with positive slide retainer.

所有移动的零件应使用硬钢料，行位必须用硬垫板和硬线条，而且必须有限位及定位锁。

All moving components should use hardened steel: all slides should be installed with hardened or lubricated alloy wear plates and gibs, and with positive slide retainer.

所有移动的零件应使用硬钢料，行位必须用硬垫板和硬线条，而且必须有限位及定位锁。

All moving components should use hardened steel : all slides should be installed with hardend or lubricated alloy wear plates and gibs, and with positive slide retainer.

所有移动的零件应使用硬钢料，行位必须用硬垫板和硬线条，而且必须有限位及定位锁。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。