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• Multi-Gloss Patterns
• Fusions
• Graphics
• Leather Grains/Hides
• Woodgrain, Slate & Cobblestone
• Geometric & Linens
• Layered Textures to Create New Looks
• Images or Logos Incorporated into the Pattern
When applying a texture to a part, the CAD drawing must be adjusted to accommodate for this surface variance. If the texture is on a surface that is perpendicular or angled away from the mold opening then no draft changes are necessary. If the texture is on a parallel surface with the mold opening, however, increased draft is necessary to prevent scraping and drag marks that could occur during part ejection. Different textures have different impacts on the molded part. The rule-of-thumb when designing for texture is to have 1.5 degrees of draft for each 0.001” of texture finish depth.
Parting Lines
A “parting line” is the line of separation on the part where the two halves of the mold meet. The line actually indicates the parting “plane” that passes through the part. While on simple parts this plane can be a simple, flat surface, it is often a complex form that traces the perimeter of the part around the various features that make up the part’s outer “silhouette”. Part lines can also occur where any two pieces of a mold meet. This can include side action pins, tool inserts and shutoffs. Parting lines cannot be avoided; every part has them. Keep in mind when designing your part, that the melt will always flow towards the parting line because it is the easiest place for the displaced air to escape or “vent”.
Common Molding Defects
Injection molding is a complex technology with possible production problems. They can either be caused by defects in the molds or more often by part processing (molding)
Keep these factors in mind when designing your injection molded part, and remember that it is easier to avoid problems in the beginning than change your design down the line.
计塑料部件是一个涉及许多因素，和必要的运用要求的复杂任务。
“这部分是如何被使用？它如何配合其他零件装配？经验中什么样的负载会使用到这种塑件？除了功能性和结构性问题，注射成型的塑料部件的设计对处理问题中发挥了很大的作用。填充推动型特点的冷却空腔内成型部分，必须采取什么措施才能很大程度上将熔融塑料进入。坚持一些注塑件设计的基本规则，除了是容易制造和组装外，通常还会能提供更强大的服务质量即更加持久耐用。在一个合乎逻辑的方式下将一部分作为基本组将帮助你建立你的部分，将帮助你同时最大限度地减少成型问题。作为一个被开发的部分，应始终牢记对这部分如何塑造你可以做些什么来减轻压力的。
目录,论文网
(a) 应用
(b) 最适合注塑成型的聚合物
(c) 注塑成型设备
(d) 注塑成型工艺
(e) 注塑周期
(f) 不同类型的注塑工艺
(g) 压力
(h) 流道
(i) 常见的流道类型
(j) 流道位置
(k) 壁厚
(l) 脱模斜度
(m) 缩痕
(n) 纹理
(o) 分型线
(p) 常见的成型缺陷
应用
塑料注射成型是生产塑料件的首选工艺。至今，注射成型多用于成型许多东西如电子外壳、容器、瓶盖、汽车内饰、梳子、和大多数其他塑料制品。对于生产大批量的塑料零件，采用多型腔注射模成型这些零件的某些部分在这个个产生周期很是理想。注塑成型的优点是高公差精度、可重复性、大的材料选择、劳动力成本低、废品损失最小、不需要成型后的成品零件。但这种方法的缺点是前期昂贵的模具投资的和工艺的限制。