注塑模设计The Injection Molding(中文6100字,英文4100字)
模具型腔可赋予制品其形状,因此在塑料加工过程中模具处于非常重要的地位,这使得模具对于产品最终质量的影响与塑化机构和其他成型设备的部件一样关键,有时甚至更重要。
根据成型方法和模具使用周期(即要生产的产品数量)的不同,塑料成型模具要满足不同的需求,模具可以由多种材料制成,甚至于可以使比较特殊的材料如纸张和石膏。然而,由于大多数成型过程需要高压,通常还有高温条件限制,金属迄今为止时最重要的材料,其中刚才居首位。很多时候,模具材料的选择不仅关系到性能和最佳性价比,还影响到模具的加工方法,甚至是整体设计。
外文
The Injection Molding
The mold is at the core of a plastic manufacturing process because its cavity gives a part its shape. This makes the mold at least as critical-and many cases more so-for the quality of the end product as, for example, the plasticiting unit or other components of the processing equipment.
Depending on the processing parameters for the various processing methods as well as the length of the production run, the number of finished products to be produced, molds for plastics processing must satisfy a great variety of requirements. It is therefore not surprising that molds can be made from a very broad spectrum of materials, including-from a technical standpoint-such exotic materials as paper matched and plaster. However, because most processes require high pressures, often combined with high temperatures, metals still represent by far the most important material group, with steel being the predominant metal. It is interesting in this regard that, in many cases, the selection of the mold |
