Large forging is an important basic subassembly which is necessary for many national major technical equipments and projects.
大型锻件是国家重大技术装备、重大工程建设所必需的重要基础部件。
How to prevent forging cracking defects, how to adopt advanced and adaptable technology to heighten economy benefits in large forging are the key problems in production at the present moment.
在大型锻造中如何预防锻造裂纹缺陷，如何采用先进适用技术，提高经济效益等，是当前生产中的关键课题。
Improper forging process will also appear large grain or uneven, hardening crack phenomenon, forging cost is higher than the casting flange.
锻造工艺不当也会出现晶粒大或不均，硬化裂纹现象，锻造成本高于铸造法兰。
COP 17 as it was known is the 17th conference of parties, an annual meeting of world governments and interested parties aimed at forging a large scale agreement to tackle the climate change.
COP17就像知道的那样，叫做第17次相关方会议，是一个由全球国家和相关方参加的年度会议，其目的是形成一个大规模的解决气候变化的协议。
The large anticorrosion flange can be divided into pushing, pressing, forging, casting and so on.
大型防腐法兰以制作方法划分可分为推制、压制、锻制、铸造等。
In order to reduce the equipment size, sometimes the large-scale forging pump press commonly used high intensity of pressure (about 35 megabars), also uses 100 megabars above ultrahigh voltage.
为减小设备尺寸，大型锻造水压机常用较高压强（35兆帕左右），有时也采用100兆帕以上的超高压。
Forging technology of complicated large crossing shaft has been probed into, which can be used for reference to forming of similar type of forgings.
探讨了复杂类大型十字轴锻件的锻造成形工艺，该工艺对同类型锻件的成形也有借鉴价值。
Forging forming process of large pipe produced on vertical hydraulic press was discussed. Relative tools and dies were designed, and production process was drawn up.
探讨在立式水压机上生产大型管材的锻造成型过程，设计相应的工模具，制订生产工艺。
Although the hydraulic forging press is a more expensive piece of equipment than a drop-forge, it has advantages beside those of giving greater strength and more uniform structure to large components.
虽然这种液压锻机比落锤锻造要昂贵得多，但它除了能给予大零件较高的强度和更均匀的组织外还有其它优点。
Representative forging processes of aeronautical large size forgings are introduced.
介绍了国外飞机大型锻件的典型锻压工艺。
The effect of deformation mode and degree on the structure and properties of large conical ring forgings was analyzed. An optimal forging process was drawn up.
分析了变形方式和变形程度对大型锥环形锻件组织和性能的影响并制定较佳锻造工艺。
Riveting machines, metal shavings Press, forging machine operators, large products such as hot forging hydraulic press.
铆接机、金属屑压块机、锻造操作机、大型热锻液压机等产品。
The technical keys of manufacturing large high - low pressure combined rotors are selecting optimum chemical compositions, refining , forging and special heat treatment.
制造大型高低压复合转子的技术难点是：选择最佳的化学成分精炼、合理的锻造工艺和采用特殊的热处理方法。
The article discusses main design points of die holder for large die forging press, and gives suggestion to the Dong Feng Automotive company for future die holder design.
就大型热模锻压力机模架设计要点进行了探讨，并对东风汽车公司今后的模架设计提出了建议。
Forging is an important hot-forming process. It is used in producing components of all shapes and sizes, from quite small items to large units weighing several tons.
锻造是一种重要的热成型工艺。它能用于生产各种形状和尺寸、从很小到重量数吨的零件。
The production technology of large flange has three kinds of forging and rolling and splicing.
大型法兰的生产工艺有锻造及卷制和拼接三种。
The main task of the system is to assess assembled vats, pressure vessels and rotation components by using COD and J-integral theory, and to assess large casting and forging components by FATT theory.
它的主要任务是对组合气缸、压力容器、旋转构件进行COD理论和J积分理论的评定，以及对大型铸锻构件进行断口形貌转变温度FATT的评定。
No clamp clamping head machine to solve a cold forging machinery clamp small, very short body, both ends of the large, mid and small shaped parts and difficult delivery of spare parts.
无夹钳开合模冷锻打头机解决了有夹钳机械生产极小、极短身、两端大、中端小等异形零配件和难于传递之零配件。
For the convenience of casting, machining, transporting, etc, the beam of large-scale hydraulic forging press has always been designed as combined structure and connected with pre-stress bolts.
大型液压机的横梁由于铸造、加工、运输等原因，大多设计成组合结构，采用预紧螺栓组连接。
Sand and rusts removing of large-sized cast iron, cast steel, steel structures, large-sized forging and surface treatment of oxidized work pieces.
大型铸铁、铸钢件，钢结构件、大型锻件，热处理件的清砂、除锈去除氧化皮表面清理等。
The concept of thermal differential mouldless forging and the method of generating large thermal differential are introduced first.
介绍了差温无模锻造的概念和基本原理以及要在金属坯料土产生大的差温所采取的方案。
The results show that it is feasible to apply the method of laminated pouring and accumulated liquid forging into forming components with large ratio of altitude and diameter.
研究结果表明：采用分层浇注-累积液锻成形大高径比制件的方法是完全可行的；
The modular measurement system has been used for the large-scale forging pipe measurement reconstruction, and it achieved good results in terms of efficiency and accuracy.
将该组合式测量系统应用于大型锻造管道的测量重构，在效率和精度等各方面都取得了良好的效果。
Quality control of large pieces of forging lies in the manipulating of heating, forging and post-forging treatment of steel ingots.
从钢锭的加热、锻造、锻后处理三方面提出控制大型锻件质量的方案。
Hot die forging, in addition to the hot work die steel casting, the wear and heat load large front steel casting mold is often used.
热作模具锻造中，除上述热作压铸模具钢外，磨耗及热负荷大的模具常采用铸型锋钢。
In conventional closed-die forging of slide forks, the material waste of the flash is serious and the geometrical tolerance is large.
滑动叉传统上采用开式模锻工艺生产，飞边大，材料浪费严重而且尺寸精度差。
A method for designing the elliptical cavities of the large roll forging has been developed. The...
初步建立了大型辊坯椭圆型槽的设计方法，可供大型辊坯辊锻设计时参考。
Proper selection of? The die material and of the die manufacturing technique determines, to a large extent, the useful life of forging dies.
能否恰当的选择铸型材料和铸型生产工艺很大程度上取决于锻模的使用寿命。
(ZHANG D W, YANG H. Large integral bulkhead of titanium alloy forgings: isothermal local loading forming technology [J]. Forging & Pressing, 2012(21):32-38.
[18] 张大伟，杨合。大型钛合金整体隔框锻件：局部加载等温成型技术[J]。锻造与冲压，2012（21）：32-38。
(ZHANG D W, YANG H. Large integral bulkhead of titanium alloy forgings: isothermal local loading forming technology [J]. Forging & Pressing, 2012(21):32-38.
[18] 张大伟，杨合。大型钛合金整体隔框锻件：局部加载等温成型技术[J]。锻造与冲压，2012（21）：32-38。
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