1、 I 窗框异型材挤出机头设计 摘 要 塑料窗框具有传统窗框难以比拟的优异性能，是国家建设部推广使用的节能、 环保型产品。目前已广泛用于各种建筑工程中，其发展空间很大，前景十分看好。 本文是关于窗框异型材挤出机头的设计，设计主要包含两部分内容，一是 80 型推 拉框挤出机头和定型模的设计,二是窗框异型材原材料配方的设计。其中挤出机头 模具设计是该设计的重要内容，也是设计的难点。挤出机头模具的设计主要包括 机头各部件外形和尺寸的设计以及定型模的设计。定型模的设计主要包括定型模 腔的设计和定型模长度的设计。 原材料配方设计主要包括 PVC 树脂型号、 稳定剂、 改性剂、润滑剂、着色剂、加工助剂和填充
2、剂等的选取和分配比例。 关键词：PVC-U，塑料异型材，窗框，机头，定型模 II Design of Extruder Head Mold of the Window Frame Profiles ABSTRACT Plastic window frames has excellent performance that traditional window frames difficult to compare. It is so energy-saving and environment-friendly as to becoming the product that ministry of
3、 our construction promotes its use. For the present, plastic window frames has been widely used in all kinds of architectural engineering, it has a bright future. This article is about the design of sash profile extruder head. The design consists mainly of two parts. The first part includes sliding
4、frame of 80 type extruder head and the design of stock mould. The second part includes the design of sash profiles raw recipe. Wherein the extruder head design is the important part of the design, but also the difficulty of the design. The design of the extruder die for the various components includ
5、es the shape and size of the head design and sizing die design. The design includes sizing die cavity shape length of the mold design and the design of the type. Formulation materials include the selection and allocation ratio of PVC resin model, stabilizers, modifiers, lubricants, colorant, process
6、ing aids and fillers and so on. KEY WORDS:：PVC-U， plastic profile， window frame， extruder head， stock mould III 前 言 1 第 1 章 概述 2 1.1 塑料门窗异型材概述. 2 1.2 硬聚氯乙烯塑料窗的发展与现状 . 2 1.2.1 硬聚氯乙烯塑料窗的性能和特点. 2 1.2.2 硬聚氯乙烯塑料窗的发展历史. 4 1.2.3 塑料窗框异型材的发展趋势 5 第 2 章 塑料制件的结构设计及螺杆挤出机的选择 . 7 2.1 80 型推拉窗框横截面的设计 7 2.1.1 设计原则 7 2.1.2 外形和空腔设计. 7 2.1.3 壁厚设计 7 2.1.4 圆角设计 8 2.2 螺杆挤出机的选择. 9 第 3 章 产品配方设计 . 11 3.1 配方设计目的 11 3.2 配方设计原理 11 3.2.1 配方设计应考虑的因素 11 3.2.2 制品主要性能和原材料的关系12 3.2.3 主原料和助剂的选择及作用13 3.3 产品配方设计15 第 4 章 挤出机头结构设计 .1
