In extensional flow fiber tended to perpendicularity to the streamline , while in shear flow and convergent flow fiber tended to parallel to the streamline in the thin wall caving 在薄壁型腔的扩张流中，短纤维趋于与流线方向垂直，而在剪切流和收敛流中趋于与流线方向一致。
Aiming at the problem of development period in general mold cavity design and manufacturing process , a feature - based injection mold cavity design and manufacturing system was constructed 摘要针对一般注塑模具型腔设计制造周期问题，构建了基于特征技术的注塑模具型腔设计制造系统。
Cannot select a placement outline curve from a later feature . cannot select a floor outline curve from a later feature . cannot select a top outline curve from a later feature 如果正在编辑一般型腔或凸垫，并且选定的轮廓曲线是由在一般型腔或凸垫之后创建的草图创建的，则显示以下消息。
The equations for hele - show have been established in this paper to describe feedstock ' s flow in fluid - channel and die cavity . the reasonable solutions for the equations have been given 建立了描述mim喂料在流道和型腔中流动规律的基于hele - show流动的方程组，并提出了合理的方程组求解方法。
And relevant extension is made to suit three - axis rough milling . the tool path generation methods are studied in depth for the machining of pocket - type , raised - type workpieces , and workpieces with open pockets 就零件的可加工性、型腔类零件、凸台类零件和开型腔的刀轨生成算法进行了深入的研究。
This kind of valve adopts international api600 , national gb12234 , the body of the valve is elliptical , the structure is reasonable and compacted 。 该产品采用国际先进标准api600及国内先进标准gb12234设计制造,阀门结构采用椭圆型腔体结构，体腔合理，结构紧凑；针对大口径特点，阀体、阀杆采用分体组合结构。
For the engineers , the following sections details how clamping force is generated . they also relate to the second device : switchover to holding pressure by cavity pressure measurement 下面的章节详细介绍了锁模力是怎样产生的。同时会涉及到（本文要讲的）第二个设备：通过型腔压力测定转换成保压状态的转化器。
After forming , they receive adequate surface hardness through heat treatment . such hardening is made possible by carburizing . these case - hardening steels are an important group of materials for mold cavities 成形后,钢经过热处理得到足够的表面硬度,这种硬化常通过渗碳的方式进行,这种表面硬化钢是一种很重要的模具型腔制作材料
The influence of the injection pressure to the mold cavity thickness was analyzed , formulas of circular mold cavity thickness were calculated , providing theory basis for deciding the mold cavity dimension rightly 摘要分析了注射压力对模具型腔壁厚的影响，推导了圆形型腔壁厚的计算公式，为合理确定注射模具型腔壁厚提供了理论依据。
The influences of foundry process and method factors on combination effect was investigated including the influences of gating system design , pouring temperature , atmospheric pressure of mould cavity , thickness of cast - penetrated layer and so on 作者就浇注系统、浇注温度、型腔气压、铸渗层厚度等工艺参数对铸渗效果的影响进行了试验研究。
