学位论文--导管注塑模具设计.docVIP

题目：导管注塑模具设计 导管注塑模具设计 摘 要 注塑成型是塑件生产最常用的方法之一。本设计通过注塑模具产品，利用实体模型测量产品的尺寸，对实体进行建模，并对塑件的材料和塑件结构进行分析，并对塑件的模具进行设计，包括塑件成品的设计、工艺参数的分析与计算、工作部分的设计、模具结构的设计和加工方案的制定，确定塑件的最佳浇注位置，并通过实际情况进行调整，从而得到对实际生产来说最合理的浇注位置。在确定模具型腔数目后，分析产品的气穴、熔接痕、充填时间、充填结束时的体积温度、流动前沿处的温度、速度/时间转换点压力、充填结束时的压力、注射位置处压力等，可确定注塑模具的合理性。此次设计中，最关键的是确定型芯和型腔的结构，此外还分析了模具受力，脱模机构的设计、冷却系统的设计等。型腔;熔接痕;分流道;点浇口 Catheter injection mold design Abstract Injection molding is one of the most commonly used method of plastic parts production.This design, injection mold products, measuring the size of the entity model, entity modeling, and materials of plastic parts and plastic parts of the structure of analysis, mold design and plastic parts, including the design of the finished plastic parts,analysis and calculation of the process parameters, the design of the working part of the mold structure design and processing programs to develop, to determine the plastic parts of the casting position and adjust the actual situation, in order to get the most reasonable for the actual production of casting position.Determine the number of mold cavity, the cavitation analysis products, Weld, filling time, filling the end of the volume of temperature at the temperature of the flow front velocity / time conversion point pressure, the pressure in the filling at the end of the injection site at the pressurecan determine the rationality of the injection mold. The mold using a common gating system, using a two cavity mold injection structure must be set to shunt feed the latent form of point gate from inside the part. This design, the most critical is to determine the structure of the core and cavity, in addition to analysis of the mold by force, the design of mold release, and the cooling system design. Key Words:cavity; weld; shunt; point gate 目 录 1绪论 1 1.1 塑料成型与注塑模具 1 1.2 国内外相关发展状况 1 1.2.1国内发展状况 1 1.2.2国外发展状况 2 1.3塑料模具发展走势 2 2塑件材料分析与方案论证 4 2.1塑件的工艺分析 4 2.1.1塑件的材料 4 2.1.2尼龙的基本特性 4 2.1.3尼龙的成型特点 4 2.1.4尼龙的主要用途 5 2.1.5尼龙的注射成型工艺参数