提高挤压速度，提高生产效率。
挤压速度-温度条件强烈地影响棒材挤压成形性。
The extrudability of 7075z aluminum alloy are strongly affected by extrusion temperature and speed.
图5示出了平均屈服强度与挤压速度和位置的关系。
FIG. 5 shows the average yield strength as a function of extrusion speed and location.
图6示出了出口温度与坯料位置和挤压速度关系的一组曲线。
FIG. 6 shows a set of curves for exit temperature as a function of billet location and extrusion speed.
很多采用工业铝合金薄壁的铝型材的挤压速度已提高了30%。
Many profiles with thin walls using industrial alloys will have speed increases much greater than 30%.
对于很多型材使用进口的挤压机可提高挤压速度20 - 30%。
With an imported extrusion press, the extrusion speed increase will be 20% to 30% for many profiles.
介绍采用单片微机组成的控制系统，实现水压机挤压速度的自动控制。
The paper recommends a control system composed of a micro-computer which controls the velocity of extrusion automatically.
在我们的测试中，我们发现绝大多数难以挤压的型材在挤压速度上都有极大的提高。
In our testing we found that the most difficult profiles will give the largest increase in speed.
这使得高挤压速度，更容易处理，使之成为一个具有成本效益的生产薄壁复杂的物品替代。
This permits higher extrusion speed and easier processing, making this a cost-effective alternative for producing thin-wall and complicated articles.
其结果是，在挤压周期开始时铝锭难以被挤压通过模具，铝锭后部的挤压速度必须被降低，以防止挤压出废品。
The result is the aluminum is difficult to push through the die at the beginning of the cycle and the extrusion speed must be reduced at the back of the billet to prevent defects.
因为对于给定的挤压速度和温度条件组出口温度从前部向后部增加，因此低的前端性能是低挤压出口温度的结果。
Since exit temperature increases from front to rear for a given extrusion speed and set of temperature conditions, the low front-end properties are a result of low extrusion exit temperatures.
对于正向挤压机来说，短锭温度递减却能使挤压速度明显提高，不会影响型材的质量，一些时候还会提高型材质量。
For direct extrusion presses, temperature tapering of the billet can provide significant increase in press speed without reducing profile quality and in some cases improving profile quality.
挤压速度、挤压毛坯的温度、型腔温度、模具的表面粗糙度以及挤压毛坯的化学成分是影响热挤压件表面质量的主要因素。
Extruding velocity, temperature of billet and container, die roughness and the chemical composition of the billet are the major factors which affect the surface quality of the extruded product.
仿真实验表明，采用GPC算法能使挤压速度精确跟踪设定曲线，并能有效抑制对象参数时变、突加恒值干扰及随机干扰的影响。
Simulation results showed that the GPC algorithm enabled extrusion speed to follow the given tracks accurately, and could effectively restrain the influence of variety of plant parameters.
研究表明：对于半固态微成形，挤压温度是成形具有复杂形状微型零件的主要参数，较低的挤压温度和挤压速度有利于成形轮廓清晰的微型零件；
The results showed that temperature is one of the most important parameters for extrusion; low temperature and extrusion speed are good in forming micro-parts;
通过测量因纳斯卡板块挤压海岸发生碰撞造成的地面的缓慢上升与下降，他们能够估算压力的实际聚集速度。
By measuring the slow rising and falling of the ground as the inexorable collision of the Nazca plate squeezed the coast, they could calculate how fast strain was actually building.
发达国家的救助计划也许可以限制财富被挤压的水平，但资本流向新兴世界的速度无疑会减慢。
The rich world's bank bail-outs may limit the squeeze, but the flow of capital to the emerging world will slow.
如果价格仅仅持平，不仅消费与建设受到挤压，而且经济增长速度也会急剧下降。
If prices merely flatten, the economy could slow sharply as consumer spending and construction are squeezed.
注塑工必须认识过快填充速度、不足注塑压力、过高融化温度和不充分挤压的危害性。
The molder must recognize the dangers of excessive fill speed, insufficient injection pressure, excessive melt temperature, and inadequate packing.
阐述了挤压铸造比压对形核率及成长线速度的影响。
Effects of the specific pressure on nucleation rate and linear growth velocity were expounded in squeeze casting.
当采用本文提出的速度场时，平均挤压高度与网格变形的理论模拟计算与实际情况相吻合。
The average extruded height and the grid distortion of theory and experiment agree well when using the proposed velocity field.
本文采用直角坐标系建立了平面变形挤压问题的运动学许可连续速度场并获得了该问题的上解析限解。
A kinematically admissible continuous velocity field to the plane strain extrusion is established in cartesian coordinates, and an upper - bound analytical solution is thus obtained in this paper.
本文建立了平面流动较为一般化的动可容速度场，分析了平面挤压(拉拔)的力能参数，获得了最佳凹模锥角。
A general dynamically permissible velocity field for plane flow is set up in the paper. The force and energy parameters for extrusion (or drawing) are analyzed, and the optimum draw Angle is obtained.
并综合主要模具结构参数对金属流动速度的影响，建立了铝型材挤压模模孔工作带设计计算的数学模型。
The effect of major parameters of die structure on metal flow velocity is integrated and the mathematical model of design and calculation of aluminum profile extrusion die land length is derived.
为了获得高质量的挤压制品，对模具出口区域速度分布的研究是必须的。
To receive extruded product with high quality, it is necessary to know the arrangement of the velocity profile at the outlet of die.
将三维塑性流动问题转化为简单二维问题，求解了异型挤压塑性速度场函数。
Hence, three-dimension plastic flow problems are translated into two-dimension problems, and the plastic velocity field function is given in special-shaped extruding.
用流函数法确定了宽截面薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。
The flow function method is used to build the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of wide section Aluminum shape extrusion.
由于水力的挤压作用，增加了煤层瓦斯放散的速度，瓦斯得到充分释放。减小了工作面瓦斯超限的威胁，对安全生产有显著的作用。
Extruding of water power increases the speed of gas scattering, which makes gas fully release, reduce the gas pressure goes beyond the limit and have remarkable effect to safety production.
进入到最终稳定挤压阶段时挤压方向金属流速计算值与理论挤出速度吻合很好。
The calculated extrusion speed in the stable extrusion stage is in good consistent with the theoretical one.
进入到最终稳定挤压阶段时挤压方向金属流速计算值与理论挤出速度吻合很好。
The calculated extrusion speed in the stable extrusion stage is in good consistent with the theoretical one.
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