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On the basis of setting up mathematical model on blowing energy of 50KJ hydraulic die forging hammer, through simulation analysis, the relation curve of the blowing route and the blowing energy have been attained under the certainly filled atmospheric pressure and the height of loaded die, and the calculation result of simulation has been validated by experiment.

新闻摘要：在建立了50kJ液压模锻锤打击能量的数学模型的基础上，经过仿真分析，得出了在一定充气压力及装模高度下的打击行程与打击能量的关系曲线，并对仿真计算结果进行了实验验证。

The design of expansion feeder plate die and shaping die,as well as the flow of metal during the extrusion and the calculation of extrusion force is discussed.

讨论了宽展模、成形模设计和壁板型材生产工艺等问题，重点讨论宽展模及其优化设计的几个原则。

The stamping process and the structural design of a progressive die for the side plate of a condenser was analyzed in detail,presenting the layout design and the main points in design of the progressive die.

介绍了冷凝器侧板的冲压工艺与级进模结构设计，针对冲压工艺分析、排样方案设计以及级进模设计要点进行了具体的阐述和总结。

Based on a large number of references,data and documents,a comprehensive comment is made on the present situation and the development of the technology of precision grinding and polishing die and mould with free-form surfaces by robot,and this paper presents key technology of grinding and polishing die and mould with free-form surfaces by robot,which includes the movement programming method for grinding and polishing tool and the method of grinding and polishing tool path generation.

在阅读和消化大量国内外文献资料的基础上，本文对模具自由曲面的机器人自动精加工技术做了较为全面的综合评述，重点介绍了机器人自动打磨和抛光精加工模具自由曲面的关键技术—加工工具的轨迹规划方法和轨迹生成算法。

The PCVD plasma impregnation process of hot forging die includes surface deoiling, polishing, supersonic cleaning in acetone and alcohol dewatering of the die after quenching at 1070 deg.c and tempering at 530 deg.c; plasma nitriding in a industrial PCVD vacuum furnace; and PCVD plating.

本发明公开了一种精密叶片热锻模具的PCVD等离子体渗镀复合强化方法，将经1070℃淬火，530℃回火后的叶片模具(HRC＝43-50)经表面除油、抛光后浸入丙酮中超声波清洗，酒精脱水；然后放入工业型PCVD真空炉内进行等离子体渗氮和PCVD镀膜处理。

And the designing method, naming and application of the standard die set s of the die_casting die were introduced.

分析了企业内部制定压铸模模架标准的必要性，介绍了压铸模标准模架的设计方法、命名及应

A set of magnetic die it's only about the price of is a set of entity die price of 25-30%.

一套磁性模切版的代价不小约只是一套实体模切版代价的25％～30%。

Company may in accordance with the metric system, British, American, German standard and other tools to create common standards of international production processing, the main products are die, hand tap, machine tap, and the combination of suit, an annual output of all kinds of varieties of different specifications of the tap, die up to 20 million more, various combinations of thread tools package for more than 300,000 sets.

公司可根据公制、英制、美制、德标等各种国际工具制造通用标准生产加工，主打产品为板牙、手用丝锥、机用丝锥、及其组合套装，年产各类品种规格的丝锥、板牙达2000万件以上，各种组合套装螺纹工具30万套以上。

Based on gaining high productivity and the high percentage of material consumption,We made the choice of using two dies to fulfill the design: one progressive die to execute punching, drawing and blanking.we use the second bending die with a wedge to get the two bends.

本设计以提高生产率及材料利用率为出发点，采用两套模具进行该启瓶器的设计：第一套级进模完成冲孔、拉深和落料；第二套模具为楔块式弯曲模，用来完成两次弯曲成形。

But I believe the outcome will be not the liquidation of progress by die-hardism but the liquidation of die-hardism by progress.

但是我看将来的结果，决不是顽固取消进步，倒是进步要取消顽固。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。