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Then , a software with simple operation and complete function designed for the gas-injection control of GAIM is developed , whose control effect is proved to be perfect by experiments .

最后设计了气辅注射成型高精度实时注气控制系统软件，实验证明该控制系统控制性能良好，能达到令人满意的控制效果。

Discussed the effect of different types of mesh on the numerical simulation of GAIM .

研究不同网格类型对数值模拟结果的影响。

Determination of Cooling Time of GAIM Products of Crystalline Plastics

气辅注塑结晶型塑料制品冷却时间的确定

Study on GAIM technology of auto-bumper and process optimization

汽车保险杠气辅注射成型技术研究及工艺优化

Experimental study on gas penetration and RWT in GAIM

气辅成型过程气体穿透长度与残余壁厚的试验研究

The robust solutions obtained by this approach can provide more optional scheme for the processing design of GAIM .

相对于加权方法处理稳健问题，本方法得到的一系列稳健设计解可以为气辅成型工艺设计提供更多的可选方案。

An innovative molding technique , gas assisted injection molding ( GAIM ) has received extensive attention in recent years .

气体辅助注射成型（Gas-AssistedInjectionMolding）是在传统注射成型基础上发展起来的一种新的聚合物加工方法。

The implementation principle of GAIM numerical analysis was investigated , which based on the analysis of polymer melt flow and gas penetration physical model .

在分析熔料流动、气体穿透物理模型的基础上，探讨了气体辅助注射成型数值分析的实现原理。

Various revised PID arithmetic are applied synthetically in the development of the gas injection control system to obtain the high control accuracy required in GAIM .

为实现对注气压力的高精度控制，采用了多模态智能PID控制算法。

The structure and capability requirement of auto-bumper were analyzed , and the gas assisted injection molding ( GAIM ) technology and its process were studied .

分析了保险杠的结构及性能要求，并研究了保险杠的气辅注射成型技术及工艺过程。

The GAIM can not only reduce warpage , clamping force and product weight , but also improve surface quality and save costs compared with the traditional injection molding .

与传统注塑成型工艺相比，气辅成型可以提高产品表面质量、减少翘曲变形、降低锁模力、减轻制品重量、节省费用。

How to effectively and quickly determine process parameters of gas-assisted injection molding ( GAIM ) is a quite important and complex process , which directly affect on quality of products .

气辅注射成型工艺参数的确定是一个相当重要和复杂的过程，它直接对制品的质量产生影响。

This numerical simulation on gas penetration , pressure field , displacement process of melt-gas boundary in different time , and skin melt forming on the cavity wall is developed for GAIM parts .

该研究对气体的穿透过程、压力场分布、小同时刻熔体/气体边界的移动状态以及在模壁上形成表层聚合物熔体壁厚的过程进行了气体辅助注射成形充模流动的实例数值模拟研究。

The studies of the paper is as follows : 1 . On the basis of rational hypothesis , the mathematical models are established for the mold-cavity filling flow of GAIM .

在合理和必要的假设基础上，建立了气体辅助注射成型充模流动过程的数学模型。

Brief introduction to the basic principles and classification of gas-assisted injection molding technology , the main advantages and disadvantages of GAIM , molding defects , mathematical models and numerical analysis simulation and so on . 2 .

本文的主要内容包括：1、简单介绍了气体辅助注射成型技术的基本原理和分类、主要优缺点、成型缺陷、数学模型及数值分析流程等。

Though the poor adhesion between GF and iPP , the transcrystalline of iPP can be unexpectly formed on the GF in the GAIM part .

尽管GF和iPP界面粘结不好，但在GAIM成型过程中，iPP仍旧能够在GF上附生结晶而形成横晶结构。

Firstly , based on the existing commercial software , the effect of mesh type and process parameters on the rationality and accuracy of GAIM numerical simulation is investigated , so as to provides theoretical guidance to use the simulation software correctly . 1 .

本文拟在已有商品化软件的基础上，分析网格类型、工艺参数变化对GAIM数值模拟合理性与准确性的影响，为合理应用GAIM模拟软件提供依据。

Due to the introduction of gas , GAIM process becomes much more complicated than the conventional injection molding . Compared with conventional injection molding , GAIM satisfies some special requirements on product design , mold design , control of the process .

但是，气体的引入也使成型工艺变得复杂，与传统注射成型相比，气辅成型对制品设计、模具设计和成型过程控制都有特殊要求。

Gas penetration is responsible for such difference . Though PC and HDPE are extremely immiscible , the transcrystalline of HDPE can be unexpectly formed on the PC fibrils of the GAIM part .

导致这种差异的原因主要在于气体的穿透作用；尽管PC和PE两相极不相容，但在GAIM成型过程中，PE还可以在PC纤维上附生结晶而形成横晶结构。

Taking the front safety rod of the small Liberation sedan as an example , an introduction was made on the application of the GAIM technology to the improvement in the product 's surface shrink marks and in the product 's quality .

以一汽红塔小解放汽车前保险杠为例，介绍气体辅助注射成型技术在改善产品表面缩痕，提高产品质量方面的应用。安全性指标。

Some new methods of the gas-assisted injecting molding technologies including external gas molding , vibrated gas-assist molding , cool gas GAIM , multi-cavity control GAIM and gas-assisted co-injection molding are presented in this article .

介绍了近年来气辅注塑成型技术方面的几种新技术，包括外部气体辅助成型技术、振动气辅成型技术、冷却气体气辅成型技术、多腔控制气辅成型技术和气体辅助共注成型技术。

Since it can overcome the defects that conventional injection molding ( CIM ) cannot be solved : such as sink mark , Uneven shrinkage and so on . the gas-assisted injection molding ( GAIM ) technology has been widely used .

由于能够更好的解决传统注塑成型无法克服的缺陷，如缩痕、收缩不均匀等，气体辅助注射成型技术（Gas-AssistedInjectionMolding，简称GAIM）获得了越来越广泛的应用。

Based on the generalized Hele-Shaw , the mathematic model of cavity filling in gas-assisted injection molding ( GAIM ), boundary condition of gas penetration , key technology of CAD / CAE model , and the system programming method are set up by providing reasonably accurate assumptions .

基于广义Hele&Shaw流动模型，通过引入合理的简化和假设，建立了实现气体辅助注射成形充模流动模拟的数学方程、气体穿透过程的边界条件、CAD/CAE建模关键技术以及系统程序设计方法等。

In this paper , the gas pressure control system of gas-assisted injection molding ( GAIM ) are discussed . Some key problems , such as the sampling interval 、 the anti-jamming technology and how to achieve the high accuracy real-time control required in GAIM , are solved effectively .

文章以气体辅助注射成型技术的核心&注气控制系统为研究对象，有效地解决了采样周期的选取、抗干扰技术的应用、控制高实时性的实现等关键问题。