分析了镦粗速度控制环节的动态特性；
The dynamic characteristics of upsetting velocity are also analyzed.
减小长度、增加横截面，称为镦粗金属。
Decrease length, increase cross-section, called upsetting the metal.
简述了冷镦和冷挤压用钢国家标准的修订内容。
Describe the content modification of national standard for cold heading and cold extruding.
镦制纯钛螺栓系列。
冷镦圆头凹模是冷镦螺栓生产过程中的关键模具。
Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
本文介绍了先进的TR镦锻法制造曲轴毛坯的工作原理。
The paper introduces the working principle in making crankshafts by using advanced tr upsetting.
简要介绍了中高速柴油机曲轴锻件的RR弯曲镦锻工艺。
This article has described the RR bending and upsetting process for crankshaft forging of the medium and high speed diesel engine.
对水压机锻造平板、漏盘间镦粗圆柱体进行了力学分析。
Mechanics analysis of cylinder upsetting between flat platen and supporting ring was conducted.
因此，对电镦机中加热电流进行模型预报有着重要意义。
So it is significant that predict the model of heating current.
介绍了镦粗直螺纹接头的工艺和流程以及工厂化加工过程。
The workmanship and operation flow of the punching straight thread joint is introduced, including the process in a factory.
对带凸台的大型饼类锻件，可采用漏盘镦挤工艺进行生产。
For a heavy forging with bulge, the upsetting-extruding process can be adopted.
简述了冷镦和冷挤压用钢国家标准修订说明中的一点儿问题。
Describe some questions of the national standard modification statement of steel for cold heading and cold extruding.
冷镦头剧烈变形能力与合金组织、塑性和剪切强度关系较大。
Big deformability was more related with its microstructure, plasticity, and shear strength.
通过理化检测，对铆螺钢在冷镦时出现开裂的原因进行了分析。
These inclusions resulted in cracking of the cold forging steel during the cold heading process.
通过理化检测，对铆螺钢在冷镦时出现开裂的原因进行了分析。
The reason of cracking for the cold forging steal was analyzed by physical and chemical tests.
高速镦头机：具有比旧式镦头机更快滚子加工速度的新型冷锻设备。
HIGH SPEED HEADER: Newer type of cold forging machine which produces rollers at a faster rate than the old style machine.
冷镦工艺可以提高材料利用率、生产率以及改善金属零件的机械性能。
Cold heading can improve the utilization rate of material, the productivity and themechanic properties of metal parts.
在通用压机上生产类似全纤维曲轴一类锻件的先进工艺为多向镦锻法。
The advanced technology for producing these kind of forgings which are similar to full fi-bers crankshaft forging on a general forging press is upsetting and offsetting operation.
以SWRCH18A钢为例介绍了湘钢二炼钢厂含铝冷镦钢的生产工艺。
The technological process of the Al killed cold heading steel SWRCH18A in the No.
镦粗变形是大型饼类锻件的主要成形方式，夹杂性缺陷是其主要质量问题。
The upsetting deformation is the main forming mode for heavy disk forgings and the inclusion defects is the main quality issue.
基于数值模拟的方法，分析了凸台轴的自由冷镦和开式冷镦两种加工方法。
Base on the method of numerical simulation, both free cold forging and opened cold forging of shaft with boss were analyzed.
对圆柱形工件在弹性工具中镦粗和闭合模镦粗时的回弹和二次屈服进行了分析。
The spring back and secondary yielding of cylindrical billets in elastic tools during upsetting and closed-die upsetting are analyzed.
分析了粉末烧结材料镦粗和复压工艺的致密效果，提出了闭式模锻工艺设计原则。
The densification effects of upsetting and repressing are compared, and a technology design principle for closed die forging is suggested .
冷镦工序设计通常由经验丰富的工艺人员根据已有的设计、工艺原则及其经验进行。
The design of cold upsetting process is usually carried out by an experienced designer from his own expertise, existing designs and the process rules.
用塑性泥模拟了圆柱体的镦粗和压扭工艺，观察了工件内部孔洞性缺陷的演变过程。
Both upsetting and processes are simulated by using plasticine as model material, the evolution process of the cavities in the cylinder is observed.
介绍了利用冷挤压技术生产冷镦模具的优点和方法，以及典型冷镦模具的制造过程。
It introduced the merit and method for applying cold extruding technology to produce upsetting die and also introduce the manufacturing process of representative upsetting die.
采用了高速冷镦挤成形工艺，可提高三销齿轮的质量、减少机械加工及降低产品成本。
Using high speed cold upsetting-extruding technology can improve quality of three-pin gear, reduce mechanical process and decrease the production costs.
将土豆胡萝卜和番茄放入锅中，开大火烧开之后，转小火继续镦30 - 40分钟。
Put potato, carrots and tomato into the soup, bring to the boil then reduce heat, simmer for 30-40 minutes. Add salt to your own taste.
将土豆胡萝卜和番茄放入锅中，开大火烧开之后，转小火继续镦30 - 40分钟。
Put potato, carrots and tomato into the soup, bring to the boil then reduce heat, simmer for 30-40 minutes. Add salt to your own taste.
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