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.
注塑模具的典型结构由成型零部件、浇注系统、导向部分、推出机构、温度调节系统等。
The typical structure of plastic injection shaping consists of shaping components, injection system, guiding system, extrusion device, and temperature regulator.
应全面考虑时间、温度和注塑件上熔合缝对压力装配的影响,确保塑料连接件能传递一定的扭矩。
The effects of time, temperature and welding line on press fitting should be comprehensively considered to ensure certain transmitted torque to an assembling part.
模温机先预调达到注塑模具所需的温度,一次成型为优质产品,减少试模原料。
First preset mold temperature machine to the temperature required for injection mold, molding for the high-quality products once and reducing the tryout material.
RHCM技术的关键是在注塑周期中,能够使模具快速加热和冷却到预定的工艺温度。
The RHCM mold should realize rapid heating and cooling to the scheduled temperature in the injection molding cycle.
温度与压力的分布是影响注塑成型的很重要的因素,在充模过程中正确预测温度与压力的分布是注塑成型的关键性技术之一。
The distributions of pressure and temperature play an important role in injection molding. The accurate prediction of the distribution is one of key techniques in injection molding.
在注塑加工数值模拟过程中,模腔的表面温度直接影响塑料熔体的流动和固化过程,所以模腔表面温度的计算对注塑数值模拟的结果起着极为重要的作用。
The temperature on mold cavity's surface affects the melt's flow and cooling in the course of injection molding, then has an important part in the solution of injection molding.
本文介绍了利用国产注塑机配备一出四模具生产PET瓶坯的生产工艺,模具冷却温度及注射温度、压力的选择。
The paper introduces one to four moulds production of PET bottle blanks using domestic plastic injector. Selections of cooling temperature of mould and injector temperature and pressure are included.
为了更好地复制模具外表,成型温度应得当高一些,注塑压力应尽约摸大一点;
In order to better copy mould appearance, molding temperature should be proper high some, injection pressure, should do about big;
采用单片机和模糊控制实现对注塑机的料桶温度控制,以达到精密注塑的温度要求。
In order to obtain precise temperature adjustment and satisfy the requirement of plastic injection, a single chip with fuzzy control to realize an advanced temperature controlling.
注塑件变形始于塑料的收缩,型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
Plastics shrinkage causes the deformation of injection molded parts. The pressure gradient, temperature gradient and shear stress in the cavity make nonuniform shrinkage.
将灵敏度分析方法引入注塑模温度场CAE中,是如何实现冷却系统自动优化设计的核心,也是冷却系统设计的一个重要方向。
It is a key to introduce sensitivity analysis method into injection mould CAE for cooling system automatic and optimum design. It also becomes an important content in cooling system design.
在加入纳米成核剂后,能明显提高PET的结晶性能,可降低注塑模具温度。
The mechanical properties of PET increased by adding glass fiber, while they decreased by adding flame retardant.
针对注塑机的特点,设计了模糊控制与监测系统,并采用一种模糊解耦算法进行料筒温度控制。
In view of the features of injection moulding machine, fuzzy control and monitoring system was devised and a fuzzy decoupling algorithm was adopted to control the temperature in the charging barrel.
着重研究注塑机的料筒温度对象系统,指出非线性、大滞后、强耦等特性。
The related control scheme is discussed to solve such problem as nonlinear, lag and close coupling characters of extruder barrel temperature after research.
本文分析了精密注塑成型过程中温度与制品收缩率的复杂关系,特别是在聚合物不同的情况下温度对精密注塑成型制品收缩率的综合影响。
The complex connections between temperature and shrinkage are described in this work, and how these connections are affected by the characteristics of plastics is discussed too.
在计算型腔温度时采用选代算法,同时分析注塑动模和定模。
As both the moving and the stationary parts of an injection mold should be handled simultaneously, an iterative method was used to calculate the temperature.
以注塑制品的温度变化为对象,考虑了注塑制品出模后的冷却过程。
Based on the variation of temperature in injection molded parts, the simulation of cooling takes consideration of the cooling stage of the part after ejection.
气辅注塑家具的加工方法是:①塑料注射,熔 融的塑料注入模具型腔,熔融热塑料遇到温度较低的模壁在周围形成薄 壁凝固层;
The production process of the inflation aided injection molded furniture includes the following steps: 1. injecting molten plastic into mold cavity to form thin wall solidified layer at the mold wall;
作为三维温度场模拟的应用,分析了热塑性塑料注塑成型模具冷却过程的温度场。
As the application of 3d temperature field numerical simulation, the thermoplastic's cooling procedure of injection molding has been analyzed.
分析了PET瓶坯的成型工艺,包括PET树脂的干燥、模具工作部分的温度控制等,阐述了热流道注塑模的结构及工作原理。
The forming technology was analyzed, including drying of PET resin and the temperature control of mold work section. The construction of a hot runner mold and its mechanism were described.
考察熔体注射温度、注射时间、入口位置、材料性质对充模过程的影响,得到优化充模结果;还考察了气体辅助注塑过程熔体预注射量、气体注射压力对充模过程的影响。
The influences of melt injection temperature, injection time, gate location and materials property on the filling process were studied and the reasonable results were attained.
注塑模具的温度控制对注塑工艺和注塑件的质量有非常重要的影响。
The control of mold temperature in injecting process has extraordinary important influences not only on the quality of the injected products but also on the process itself.
MM控制规则集不要求精确对象传递函数,把智能积分控制方法应用于精密注塑机液压油温度控制系统中,收到良好效果。
Intellectual integration has non_linear behavior. The set of M_M control rules does not require actual transfer function of the object, and succeeds in controlling the oil temperature of the hydr…
MM控制规则集不要求精确对象传递函数,把智能积分控制方法应用于精密注塑机液压油温度控制系统中,收到良好效果。
Intellectual integration has non_linear behavior. The set of M_M control rules does not require actual transfer function of the object, and succeeds in controlling the oil temperature of the hydr…
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