A kind of new die profile surface on deep drawing performance is established by plastic theory and mathematical method.
利用塑性理论和数学方法得出一种新的拉深凹模型腔曲面。
A simple and efficient reversing methodology of adjusting featured parameters is proposed for the casting-die profile design of turbine blades.
提出了一种简单高效的涡轮叶片精铸模具型面逆向设计方法:特征参数逆向调整法。
All that information amounts to a digital profile of sorts, which raises an interesting question: What happens to that online material when we die?
所有的这些信息构成了各种数字主页,并且引发了一个很有趣的问题:当我们死后,网上的信息会何去何从?
The added benefits of reduced profile defects and protecting the extrusion die from overheating are not calculated in this financial analysis.
减少型材次品和保护过热的挤压模具的效益并没有计算在本财务分析中。
Babies who die of sudden infant death syndrome, or SIDS, while sharing beds may have a risky sleep profile, a new study shows.
一项新研究显示,共用床位可能导致婴儿睡姿不正确,增加婴儿猝死综合征的发生率。
I know that this letter may be a very big surprise to you, I came across your profile from my personal search and I believe that you will be honest to fulfill my final wish before I will die.
我知道这封信可能是一个很大的惊喜给你,我遇见你的侧面,从我个人的搜索,我相信你会诚实的履行我的最后希望之前,我就会死亡。
The extrusion die for plastic profile is the key equipment of its production, and has a great effect on the quality and the production circle.
塑料异型材挤出模是塑料异型材生产的关键技术设备之一,直接决定着型材制品的质量和生产周期。
On the basis of the analysis of the character of aluminum alloy profile for subway and its producing difficulty, structure design and various technical parameter of extruded die were detailed.
在分析了地铁车辆用铝合金型材的特点及其生产难度的基础上,对挤压模具的结构设计和各项技术参数的确定做了详细说明。
Extrusion is one of the main methods of plastic product and extrusion die is the important equipment to manufacture plastic profile.
挤出成型是塑料加工的主要方法之一,而挤出模具又是成型塑料异型材的主要设备。
Improving design method for die of column profile is introduced. Structure of die is more reasonable, its life is longer and shape forming is more instable after improving design.
介绍了立柱型材的改良设计方法,改良后的设计使模具受力结构更趋合理,模具寿命延长,型材成形更稳定。
Analyzing the die channel structure and the melt flow of the circle profile in the extrusion die provides the basis of the die design for the circle profile.
分析了模头流道结构和熔体在圆环型材挤出模中的流量,为环类型材挤出模设计提供了依据。
All kinds of reasons of extruded die cracked is analysised when profile is hot extruded, and take the method of preventing and remedying.
分析了异型材热挤压时造成挤压模具开裂失效的各种原因,并提出了预防和补救措施。
The forming recesses (1, 3) of a lower die (2) and an upper die (4) are formed to have a semi-oval profile so as to provide a forming space S almost oval in section with the dies closed.
下模具(2)和上模具(4)的成型凹部(1、3)形成为具有半椭圆形轮廓以当模具闭合时提供大体椭圆形横截面的成型空间(S)。
While profile, the cross section was composed of annulus and rectangle, was extruded, the flow mechanism the plastic melt in the die was analyzed and the design method of die land was given.
本文分析了异型(圆环型与矩形的组合)材成型时塑料熔体在模头中的流动机理,并给出了模口成型长度的设计方法。
To receive extruded product with high quality, it is necessary to know the arrangement of the velocity profile at the outlet of die.
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。
The concepts of profile are abstracted, thus design mode can be understood easily, the thinking of die designing are developed.
将型材的概念抽象化,使设计模型更加容易理解,拓宽模具设计思路。
An example shows that using this method can obtain a uniform velocity profile across the die and minimize pressure drop.
通过算例表明,应用该法进行口模优化设计可以减小压力降和口模出口速率变化率。
There is an important influence of the exit velocity at the aluminum profile extrusion on invalidation of the die land.
铝型材挤出速度对模具工作带的失效有着重要影响。
Aluminum profile, Non-standard industrial profile, Heat sink profile, Shell of LED, Die-casting parts, Deep machining parts, etc.
铝合金型材、工业异型材、散热型材、LED灯罩、压铸产品、五金深加工产品等等。
Quantitatively analyzing the effect of two to the profile of tooth, the inversing compensation method is then put forward to modify the die cavity and the electrode is designed.
在定量分析了两者对齿轮精度的综合影响之后,运用反补偿法预先修正齿形凹模,并进行了齿模电极的设计。
Based on this model a computer aided optimum design system of die bearing length and openings layout for aluminium profile extrusion is developed.
根据该模型开发了铝型材挤压平模工作带长度和模孔配置的计算机辅助优化设计系统。
The machining technology of commonly used aluminum profile extruding die is introduced.
介绍了常用的铝型材挤压模的制造工艺。
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.
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 reason why it is difficult to process the titanium precise profile wire is analyzed, and principles, characteristics and superiorities of the roller-die are simply stated.
分析了精密异型钛材难以加工的原因,简述了辊模拉拔法的原理、特点和优越性。
A renumbering algorithm is presented in this paper. The algorithm optimizes the node number of the aluminium profile extrusion die, makes the bandwidth reduced and the compute speed increased.
本文用一种新的结点编号优化算法对铝型材模具网格结点编号进行了优化,减少了有限元带宽,提高计算速度。
In this paper, the metal flow route during closed die extrusion for spiral bevel driving gear of automotive final drive is analyzed and the profile of preformed blank has been designed.
分析了主动螺旋伞齿轮闭塞挤压的金属流动路线,设计了预制坯的形状。
Some key dimensions were confirmed according to the flow balancing theory and the velocity distribution, and a profile-tube die was designed for thermal polyurethane.
依据流动平衡原则,根据流场速度分布探讨了部分关键尺寸的确定。针对热塑性聚氨酯材料进行了异型管材机头的设计。
The die-swell mechanism of polycarbasilane(PCS) melt for a spinneret with Y-shaped orifice and the effect of die swelling of PCS on the profile degree (PD) of Y-shaped SiC were investigated.
研究了聚碳矽烷(PCS)熔体在Y型喷丝孔中的挤出胀大机理、膨胀模型以及膨胀比对Y型碳化矽纤维异形度的影响。
A new_type die for hot fine forging internal gears was put forward. The structure principle of the die and the method for designing and machining the tooth profile of the die were discussed.
提出内齿轮热精锻成形的新型模具,论述了模具结构和模具齿形设计加工方法。
A new_type die for hot fine forging internal gears was put forward. The structure principle of the die and the method for designing and machining the tooth profile of the die were discussed.
提出内齿轮热精锻成形的新型模具,论述了模具结构和模具齿形设计加工方法。
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