Causes the steel to produce the hot brittleness, reduces the steel the ductility and the toughness, when forging and rolling crack.
使钢产生热脆性，降低钢的延展性和韧性，在锻造和轧制时形成裂纹。
Thermal deformation processing: heat pressing, forging and rolling for metal and alloy.
热形变加工：金属及其合金的热压、锻造、轧制等形变加工。
The distribution law of horizontal cross section area of ring forging and ring blank is put forward to describe the rolling formability of conical ring with inner steps.
对内台阶锥形环件轧制难度进行了分析，提出用环件锻件和轧制毛坯的水平横截面积分布规律来描述内台阶锥形环件的轧制难度。
A new forging technology is proposed, in which computer simulative design and computer optimization are applied to exact preforge through transverse rolling.
通过计算机仿真设计和优化，提出了扳手生产的新的锻造加工工艺，该新工艺用楔横轧精确制坯实现了优化目标。
In bulk deformation processes such as forging, rolling, extrusion, and wire drawing there is an intentional change in the thickness or the lateral dimension of the workpiece.
大部分的变形过程如：锻造，轧制，挤压和拉丝都有同样的过程就是有意使工件的厚度或外部尺寸发生变化。
Hot forging rolling extrusion etc.
热锻、滚轧、热压等等。
The major factors of manufacturing TB2 titanium alloy wires are studied. The results indicate that using proper forging and rolling and drawing procedures can obtain wires with satisfactory surface.
对TB2丝材生产的主要工艺参数进行了分析研究，结果表明：采用合理的锻造、轧制和拉拔工艺可以获得表面良好的成品丝材。
Furthermore, the design parameter of rolling forging die is acquired from mechanical design handbooks and experiential formula.
前轴精密辊锻工艺难度大，模具设计主要是靠查手册，用经验公式来确定的模具参数。
A new technology, substituting three axis for four axis manufacturing by using subarea manufacturing is offered and manufacture successfully the rolling forging die for enterprise.
采用分区加工的方法实现了三轴加工替代四轴加工新方法，并成功地为企业加工出了合格的滚压模具。
Observations showed that the micro-structure of the steel after forging or high temperature rolling was composed of low-carbon martensite, a little part of bainite and residual austenite.
微观组织观察表明，在锻造或高温轧制状态下获得了以低碳马氏体为主，含少量贝氏体和残余奥氏体的复合组织。
In this papers, the composition of forging and rolling machine roll sleeve is scientifically designed, the centrifugal casting and heat treatment process of roll sleeve are researched.
对锻轧机辊环的化学成分进行了科学设计，对辊环的离心铸造工艺、软化退火工艺、淬火工艺和回火工艺进行了深入研究。
Rolling forging is an important means in metal-forming method.
辊锻是金属塑性成形中的重要加工方法之一。
The manufacturing and being in use quality control of forging steel rolling mill rolls was analyzed in this paper.
本文从制造和使用两个方面对锻钢轧辊的质量控制进行了分析。
Three modeling methods and NC auto programming based on shape characteristics of cavity of rolling forging die are discussed.
根据滚压模型腔的形状特点，介绍了三种不同的建模方法以及数控加工自动编程过程。
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。
It is found that if the roll passes and the the rolling processes are reasonably chosen and the roll forging dies are designed properly, the stud can be formed on a suitable roll forging mill.
选择适当孔型系和辊锻道次，正确设计辊锻模，可在合适的辊锻机上完成双头螺栓的成形。
The production process includes hammer die forging, pressure forging, roll forging forming, and precision rolling-die forging composite technology.
前轴是汽车中的大型重要锻件，其生产工艺可归纳为锤上模锻、热模锻压力机上模锻、成形辊锻、精辊-模锻复合工艺等几种类型。
Usually, excellent Superplasticity of Zn-Al eutectoid alloy could be obtained by pre-deformation (rolling or forging).
锌铝共析合金具有良好的超塑性，但通常需要经过预变形(轧制或锻压)来得到。
This paper introduces characteristic of cross rolling technology and its application in forging products of left continuous motion stem on automobile.
介绍了楔横轧工艺特点及其在汽车左连动杆锻件制坯中的应用，说明了模具设计工艺参数的选取和现场调试方法。
After original bearing ring rolling process, directly adding a finishing diameter process made the ring forging get finish.
在原有轴承套圈辗扩工序后直接增加一道整径工序，使套圈锻件得到精化。
The niobium strips were fabricated by forging-cogging, rolling and heat treatment.
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 research results will be significant for extending the engineering application of cross wedge rolling, especially for the application of forming blank for closed die forging.
研究结果对于扩大楔横轧工艺的应用有实际意义，尤其是对于锻件制坯成形的应用，将起到良好的作用。
The steels can obtain better strength and toughness by subsequent air cooling after hot forging or rolling without any heat treatment.
本钢种无需经过任何热处理，经锻轧后空冷就能达到较好的强韧性。
The present invention relates to ring part forging and rolling formation technology, and is especially forging and rolling process of forming flange for wind motor tower.
本发明涉及环形件锻辗成形工艺技术，具体地说是一种风力发电塔筒法兰锻辗成形方法。
This technology includes material selection, steel making, forging, heat-treatment and machining. The results of rolling test and inspection measurement are also presented.
包括材质的选择、钢的冶炼、锻造、热处理、机加工全套技术和上机试验与检测结果。
The main production workshops are as follows: forging workshop cold forging workshop heat treatment workshop, metalworking workshop grinder workshop, thread rolling workshop, high pulse workshop.
主要生产车间有：锻压车间、冷镦车间、热处理车间、金工车间、磨床车间、滚丝车间、高频车间。
Heating and through heating apply to forging, rolling, bending and metal surface quenching.
保温炉节能适用于不锈钢、精密铸造、铸钢、生铁、铜、铝、银焊条、汝铁硼等金属材料熔炼。
The four-axle 3D numerical controlled rolling-forging machining technology for die impression is studied and developed.
研究开发了辊锻模膛四轴三联动数控加工技术。
The four-axle 3D numerical controlled rolling-forging machining technology for die impression is studied and developed.
研究开发了辊锻模膛四轴三联动数控加工技术。
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