论述了全面提高大锻件内在质量的理论。
The theory of how to overall improve the inner quality of heavy forging has been discussed.
研究了供航空大锻件加热用煤气炉控温系统的结构。
The structure of the temperature control system of the gas fired furnace for heating of the big aeronautic forge piece is studied.
轴类大锻件的锻造过程分为压方、拔长和倒棱滚圆三大步骤。
The whole forging process of long-axis heavy forging was divided into three steps, including squaring, stretching and chamfering-rounding.
最后，作者展望了今后大锻件工艺数值模拟技术的研究方向。
Finally, the authors prospected the trends of numerical simulation technique research for heavy forging processes in future.
未经扩氢退火的电渣钢大锻件经超声波检验，未发现白点缺陷。
Ultrasonic testing shows on flake defects in theheavy forgings of ESR steel without any diffusion annealing.
本文研究了碳含量对508 - 3钢大锻件组织与性能的影响。
This paper experimentally investigated the effect of Carbon content on the microstructure and property of SA508Gr3 steel heavy forging.
介绍了上述研究成果在大锻件工艺设计中的应用以及编制的数值分析软件。
Application of the research results above to the design of heavy forging processes, and softwares developed by the authors were also introduced.
本文根据最优化设计原理，推导并建立了大锻件多件拼锻节材的最优化数学模型。
Based on the principle of optimum design, an optimization mathematical model of forging multi-pieces for saving material has been advanced.
目前我国大锻件生产行业如何按照原机械工业部提出的三大战役进行其组织机构优化？
How to optimize the organization in heavy forging production field in China at present in accordance with "the three big campaigns" raised by the former Ministry of Machinery Industry?
指出，电渣技术是生产100t以上直至300 t重大锻件用巨型钢锭的理想方法。
It is pointed out that electroslag technology is an ideal process of manufacturing gigantic ingots for 100t up to 300t forging a piece.
对塑性成形原理中传统相似理论之不足进行了分析，导出小试件对大锻件无直接模拟的可能性的结论。
The inadequate of a resemblance theory in the traditional metal plasticity is dissected, Where a conclusion of which there is no direct resemblance for a small sample of the heavy forging is deduced.
在分析、总结国内外对大锻件尺寸测量技术的基础上，提出一种新的测量方案：光学接触靶柔性坐标测量系统。
By summing up both domestic and international measuring methods, a new one is proposed: optical-contact target flexible CMMs.
重大型装备制造需要超过单重100t直至300 t的锻件，大锻件生产的限制性环节在于缺乏优质巨型钢锭。
To manufacture the heavy equipments demands more than 100t up to 300t forging a piece, and shortage of quality gigantic ingots is a restrictive link in production of the heavy forgings.
重大型装备制造需要超过单重100t直至300 t的锻件，大锻件生产的限制性环节在于缺乏优质巨型钢锭。
To manufacture the heavy equipments demands more than 100t up to 300t forging a piece, and shortage of quality gigantic ingots is a restrictive link in production of the heavy forgings.
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