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影響模具精密注塑的緣由是什么?

刮刮乐2000 www.yfrmbf.com.cn 來源:    發布時間:2019-09-23 17:54:44    點擊:

  模具設計師必須有豐富的經驗在設計和注塑,必須考慮這些因素之間的關系和注塑條件及其明顯的因素,如注射壓力和空腔壓力和充填速度、熔體溫度和模具溫度、注塑模具結構和澆口形式和分布的產品以及門區域,壁厚,塑料材料,塑料材料中增強填料的含量受結晶度和取向等因素的影響。以上因素的影響也因塑料材料的不同,或其他成型條件如溫度、濕度、結晶持續、成型后注塑機的變化而不同。
  Mold designers must have rich experience in design and injection moulding, and must consider the relationship between these factors, injection conditions and their obvious factors, such as injection pressure and cavity pressure and filling speed, melt temperature and mould temperature, injection moulding structure and gate form and distribution of products, as well as door area, wall thickness, plastic materials. The content of reinforcing filler in plastic materials is affected by crystallinity and orientation. The influence of the above factors also varies with the plastic material, or other forming conditions such as temperature, humidity, crystallization duration, and the change of injection moulding machine after moulding.
  在影響精密注塑成型的因素中,模具是獲得滿足質量要求的精密塑料制品的關鍵。模具設計的合理與否,將直接影響到塑料制品的質量。由于模具型腔尺寸是由塑料制品所需的大小和材料的收縮,和工程塑料的收縮率往往或手動的塑料制造商推薦的范圍值,它不僅與模具澆口形式,澆口位置和分布,以及工程塑料的晶體取向和塑料制品的形狀,大小和距離門的位置。影響塑料收縮的主要因素有熱收縮、相變收縮、定向收縮、壓縮收縮和彈性回復等。
山東模具
  Among the factors affecting precision injection moulding, mould is the key to obtain precision plastic products that meet the quality requirements. Whether the die design is reasonable or not will directly affect the quality of plastic products. Because die cavity size is the size and material shrinkage required by plastic products, and the shrinkage rate of engineering plastics is often recommended by manually manually plastic manufacturers, it is not only with the form of die gate, gate location and distribution, but also with the crystal orientation of engineering plastics and the shape, size and distance of plastic products. The main factors affecting plastic shrinkage are heat shrinkage, phase change shrinkage, directional shrinkage, compression shrinkage and elastic recovery.
  注塑是將塑料從固體到液體再到固體的過程。從晶粒到熔體,再從熔體到產品,需要溫度場、流場和密度場。在這些場的作用下,不同的塑料具有不同的聚合物結構和流變性能。所有影響上述“領域”的因素必將影響塑料制品的物理力學性能、尺寸、形狀、精度和外觀質量。
  Injection is the process of plastics from solid to liquid and then to solid. From grain to melt, and from melt to product, temperature field, flow field and density field are needed. Under the action of these fields, different plastics have different polymer structures and rheological properties. All the factors affecting the above "field" will certainly affect the physical and mechanical properties, size, shape, accuracy and appearance quality of plastic products.
  從而通過塑料制品表達工藝因素與聚合物性能、結構形式、塑料制品之間的內在關系。合理地制定注塑工藝,合理地按圖紙設計制作模具,甚至合理地選擇注塑設備,對分析和明確這些內在關系具有重要意義。精密注塑與普通注塑壓力和注塑速度也不同,精密注塑往往采用高壓或超高壓注塑,高速注塑可獲得較小的成型收縮率。
  Thus, the intrinsic relationship between technological factors and polymer properties, structural forms and plastic products can be expressed by plastics products. It is of great significance to analyze and clarify the internal relations by reasonably formulating injection process, reasonably designing and manufacturing molds according to drawings, and even reasonably selecting injection equipment. Precision injection moulding is different from ordinary injection moulding in pressure and speed. Precision injection moulding often uses high or ultra-high pressure injection moulding. High-speed injection moulding can obtain smaller shrinkage rate.
  以上是刮刮乐2000制造商為大家介紹的“影響模具精密注塑的緣由是什么?”相關內容,想要了解更多內容,歡迎訪問網站://www.yfrmbf.com.cnAbove is Shandong Mould Manufacturer's introduction of "What is the reason for affecting precision injection moulding of moulds?" For more information, please visit //www.yfrmbf.com.cn
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