这个阶段叫作初轧或开坯。
研究了锻造开坯、轧制、热处理工艺对铌带深冲性能的影响。
The niobium strips were fabricated by forging-cogging, rolling and heat treatment.
锻锤开坯方式不同其共晶碳化物均匀度、颗粒度有很大的差异。
Different forging hammer cogging-down way will lead to different evenness degree and graininess of eutectic carbide.
对某厂“1+4”热连轧开坯机的扭转振动动态特性进行了研究。
The dynamic properties of the main drive system of a "1+4" hot strip continuous rolling mill are analyzed.
本文论述了60at轨的全部生产工艺过程，包括冶炼、开坯、轧制、矫直以及精整加工等。
In this paper, the whole process of 60at rail production including steel-making, blooming, rolling, straightening and finishing is described.
线材开坯轧机是采用三辊驱动的线材开坯轧机，它可以在数量，品种和规格等方面全面满足需要。
My design is aim to design for wire rod boil Pei rolling mill. First, According to rolling technology , the basic size of roll is designed , and then have selected motor according to rolling force.
就1200齿轮座应用到790开坯机上所进行的改造情况作了方案论证，结构设计和参考数计算。
This paper researches argumentation, structural design and reference coefficient calculation of 1200pinion housing rebuilding when it's applied to 790 first rolling mill.
利用ABAQUS6.5对H型钢的开坯过程进行数值分析，由于单元的严重畸变导致数值分析的异常终止。
The ABAQUS6.5 was used to analyze the H-Shape metal cogging, in which the mass scaling and mesh adaptive was utilized to improve the simulation effectiveness.
通过有限元分析，研究了950开坯机压下系统球面轴承表面正压力的分布情况，并据此提出了相应的改进措施。
The positive pressure distribution on the bearing surface of screw down system of 950 primary mill was studied using FEM and the corresponding improvement way has been put forward.
以电子束熔炼的纯钽锭为原料，研究了冷压开坯然后进行轧制的工艺，以及加工变形量、退火工艺对钽板的组织与性能的影响。
Study is made of the influence of the process of cold pressing and roughing followed by rolling, of deformation degree and annealing on the structure and properties of Ta slabs.
以电子束熔炼的纯钽锭为原料，研究了冷压开坯然后进行轧制的工艺，以及加工变形量、退火工艺对钽板的组织与性能的影响。
Study is made of the influence of the process of cold pressing and roughing followed by rolling, of deformation degree and annealing on the structure and properties of Ta slabs.
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