查询词典 die-hardism

Through the pressing process analysis of the dustproof cover, the operation method of the compound die and die structure were introduced.

进行了防尘罩的冲压工艺分析，介绍了复合模的使用方法及其模具结构，对该模具的调试改进作了总结。

The structural character of the driving end caps of Comings B series diesel oil dynamotor is analyzed, the original diecasting die structure is optimized, as well as the productive efficiency and die life get improved.

分析了康明斯B系列柴油发电机驱动端盖的结构特点，对原有压铸模具结构进行了优化，大大提高了生产效率及模具寿命。

Many people die because of war or a task, but is not that earth-shattering thing, but simply die.

很多人死于战争或者任务，而且都不是什么惊天动地的事，只是简单的死去。

Through analysing the structural feature and pressing technical of LJ465Q-1A petrol motor front encloser,these design emphasize introduce the pressing process planning and punch flush trim die , hole flanging moding design of petrol motor front encloser, approach how to avoid flaw , ascertain rational pressing process and dying structure ,finally in terms of pressing process drawing ,achive the punch shaving die ,hole flanging structure design and assembly drawing , major parts drawing of the part .

本设计通过对LJ465Q-1A汽油发动机前罩壳的结构特点和冲压工艺分析，着重介绍了该零件的冲压工艺过程设计及冲孔修边模、翻孔模的设计要点，探讨了避免缺陷产生的方法，确定了合理的冲压工艺过程和模具结构，并以冲压工艺过程图为依据完成了该零件冲孔切边模与翻孔模的结构设计和装配图、主要零件图的绘制。

Polymer melt ; extrusion swell ; conical short die ; die entrance angle

聚合物熔体；挤出胀大；圆锥短口模；口模入口角

"I must die," again says Epictetus. But must I then die sorrowing?

厄匹克特泰又说，我迟早会死，但是，我必得悲伤地死去吗？

According to IS theory as well as die bond requirement in reality, Au/In was chosen by virtue of appropriate equilibrium diagram and high reaction rate from a variety of binary alloy systems as die bond media. To match CET of chip material of silicon, alloy 42 (Iron-Nickel) rather than copper—2 kinds of lead-frame materials in most common usage, was selected as substrate.

根据等温凝固原理和芯片焊接的实际需要，从多组二元合金中选出了共熔点低、反应速度快的金和铟作为焊接材料；并以硅片作为芯片，从目前最常用的框架材料—铜和铁镍四十二合金中，选出了与硅的热膨胀系数相近的铁镍四十二合金作为衬底材料。

This paper presents the general methods and process of panel die design in PRO/E environment. The design can be top- down and bottomup. The emphasis is on the design and analysis of die surfaces under the PRO/DIEFACE including extensions, extension ratio, spring back ,etc.

本文探讨在PRO／E环境下采用自顶向下和自底向上的方法进行覆盖件模具设计的技术、方法和过程，着重叙述利用PRO／DIEFACE进行模具接触面设计、分析和空间曲面处理的步骤，包括模具型面、工艺余料、法兰、拉深筋、弹复角的生成和成形度分析等。

The rolling procedure of cross wedge rolling in the case of die void and not was simulated adopting Finite element method. Base on it, effect of die void on rolling force was analyzed in detail.

为此，采用有限元法对楔横轧模具在不脱空和脱空情况下进行了轧制过程数值模拟，详细分析了模具脱空对轧制力影响的规律，得到了在一定断面收缩率范围内模具脱空有利于减小轧制力的研究结果，并与测试结果进行比较。

Considering the problems of spurgear precise plastic forming, such as high deformation resistance, poor flowability and especial hardness to fill cant of gear, technological plan was developed based on precise plastic forming technique, successive control principle and consecutive local deformation theory. Moreover, structures of the rolling preform die and the die with up and down wellrounded forcer for stamping-extrusion and bulge-extrusion combining forming were designed too.

因此本文的主要研究内容和结果如下：本文以某种直齿轮：模数m＝2，齿数z＝20，压力角α＝200，变位系数x＝0为对象，针对直齿轮精密塑性成形变形抗力大，流动性差，特别是成形中齿轮角隅部分更加难以充满问题，基于精密塑性成形技术、逐次控制原理以及连续局部变形原理提出了"直齿轮滚轧制坯－镦挤、胀挤复合精成形"的工艺方案，设计了滚轧制坯的模具结构和上下冲头带圆角的镦挤、胀挤复合精成形的模具结构。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐