成型收缩

同时增加润滑效果，使制品成型收缩率适当减小，提高制品的尺寸稳定性和美观性。

Meanwhile , it could promote the lubricating effects , moderately reduce the molding shrinkage ratio of products , and improve the dimensional stability and elegance of products .

但是聚丙烯本身韧性差、抗低温冲击性能差、成型收缩率大，限制了它在高压绝缘领域的应用。

But PP also has the disadvantages itself that its toughness is poor , its low temperature resistance is poor and its molding shrinkage is big , so that the application in the field of high-voltage insulation is limited .

PA成型收缩率与注射工艺条件的关系

Ralation Between Molding Shrinkage for PA Processing and the Injection Conditions

但其冲击强度较小，拉伸强度偏低，并且成型收缩率较大，这就大大限制了PP的应用。

However , it has limited impact strength and large mold shrinkage , which greatly limit its application .

研究了熔体流动性、分子取向、填料等因素对聚碳酸酯（PC）成型收缩率的影响。

The effects of the fluidity of polymers melt , orientation , and the filler in the polymer on shrinkage of Polycarbonates were studied in this paper .

本文采用多元组分对PP进行了协同改性，以期制备高强、高韧且成型收缩率较小的改性聚丙烯复合材料。

In order to get PP composites with low mold shrinkage and high strength and toughness , multi-components were adopted in this work to co-modify PP.

注塑参数对聚碳酸酯成型收缩率的影响研究

Influence of injection molding parameters on the molding shrinkage of polycarbonate

HDPE/LLDPE/CaCO3共混物注射成型收缩率的研究

Study on Injection Moulding Shrinkage of HDPE / LLDPE / CaCO_3 Blend

聚酰胺1010精密注射成型收缩率的研究

Study on precision injection mould shrinkage of Polyamide 1010

此外还介绍了成型收缩率的评价方法。

A evaluative method of forming shrinkage was introduced .

注射成型收缩与模具尺寸

The shrinkage of injection moulding and mould dimension

本课题在全面分析注塑成型收缩研究概况的基础上，用实验对注塑制品收缩规律进行了全方位的研究。

So it is necessary to study the shrinkage laws of injection molding products .

GB/T15585-1995热塑性塑料注射成型收缩率的测定

Determination of shrinkage for injection moulding thermoplastics

研究了塑件主特征和限定特征对成型收缩的影响关系，建立了考虑塑件结构特征影响的收缩关系表达式。

Mutual relation on molding shrinkage between central character and restriction character is studied , and connection formula is established .

塑件成型收缩的研究现状与趋势探讨关于萎缩的，或有萎缩特征的。

Current status and development trend in research of molding shrinkage of plastic products relating to or characterized by atrophy .

通过模拟实验结果曲线的分析表明，塑件的结构特征及浇口位置与数量的变化，对塑件的成型收缩具有重要影响，并且有一定的规律可寻。

Structures and place and number of molding gate have effect on molding shrinkage by analyzing results of simulation experiments , and have many laws .

本文介绍了小模数塑料齿轮模具型腔尺寸的设计原则和成型收缩率的处理方式。

The article discusses the design principle of the cavity of a mould for plastic gears with low module and the way to handle shrinkage rate during forming .

结果表明，制品厚度对其成型收缩的影响很大，制品厚度增大时，注射成型收缩率增大，但这种增大的趋势是非线性的，而是随着厚度的增加而逐渐减缓。

The results show that the shrinkage of injection molding part is increased with thickness of parts in non-linearity , and the increase momentum is moderated with the increase of thickness .

采用模拟实验的方法，在相同注射工艺条件下，保持浇口尺寸和位置不变，对不同厚度制品的成型收缩率进行模拟实验研究，绘制了模拟实验曲线。

Using simulation experiment , shrinkages of injection molding parts with different thickness are studied . Simulation experiments are performed with same parameter of process condition and fixed gate dimension and position .

试验结果表明：随着碳酸钙含量的不断增加，两种体系的成型收缩率都呈现不断减小的趋势，但是下降的趋势不是很明显，原因可能是由于碳酸钙的加入促进了聚丙烯的结晶；

The results showed that the mould shrinkage of the two systems was decreasing persistently with increasing the content of the calcium carbonate , but not significantly , the reason of which may be the addition of the calcium carbonate accelerated the crystallization of polypropylene .

复合材料薄板的成型固化收缩变形研究基于GTN细观损伤模型的板料成形过程损伤分析

Study on the shrinkage deformation of thin composite laminates during curing process ductile damage analysis for fracture in sheet metal forming based on GTN mesoscopic damage model

扇形制品注射成型的收缩特性研究

Research on injection molding shrinkage characteristics of fan-shaped plastic parts

注塑成型制品收缩率预测理论与方法的研究

Research on Prediction of Shrinkage for Injection Molded Parts

在这些应用场合，不仅要求塑料制品的精度高，而且塑料制品形状也比较复杂，这使得对注塑成型制品收缩率的控制变得十分重要。

Industrial plastic parts are usually requested to have high precision and complicated shapes , so it is important to control the shrinkage rates of injection-molded parts .

介绍了一步法加工成型PVC热收缩膜的生产工艺过程及操作中的注意事项。

The process of one-step forming PVC heat shrinkable film and attentive items in operation were introduced .

注射成型薄壁制品收缩与翘曲因素

Affecting factors of shrinkage and warpage of thin-wall injection molding process

模塑成型工艺中低收缩、低轮廓添加剂的作用机理和选择

Lew profile acting mechanism and choice of low profile additives for molding process

注塑成型制品的收缩规则

The shrinkage rule of injection - molding products

保压时间越长，补缩作用越明显，使得制品成型后的收缩性大幅度减小。

The longer of holding pressure time is , the more obvious supplied-shrinkage effect shown . This made the shrinkage of product reduced .

并就简化模具结构设计的优缺点与前后三次激光选区烧结（SLS）的成型工艺条件和收缩率进行了探讨，提出了SLS技术的现状、发展趋势与方向。

The advantages and disadvantages of simplifying the mould structure , and the molding condition and contraction rate of the successive SLS three times are discussed . Further more , the status in quo , the trend and direction for further development of SLS is put forward .