Page 28 - 2019-18
P. 28
橡塑技术与装备(塑料) CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT (PLASTICS)
Compression molding technology and mold design
—— Part I Plastic press molding
Lecture 1 Introduction (1)Ḥ
ḤḤḤ
Hong Shenzhang
(Shanghai Jiaotong University of Plastic Forming Technology and Equipment Institute, Shanghai 200030,China)
Abstract: Compression and injection molding use different types of plastics, the former using thermosetting
plastics, the latter using thermoplastic plastics. Compression molding technology and mold design is
a developing comprehensive science. It not only improves with the improvement of polymer synthesis
technology, the renewal of molding equipment and the maturity of molding technology, but also with the
development of computer technology, rapid molding technology, numerical simulation technology, digital
application technology, intelligent technology, etc. The main contents of this lecture include: compressing
molding technology and classification, compressing molding parts design, compressing mold structure design
and parts design, compressing molding equipment, quality control and defect analysis of compressing
molded parts, application examples of compressing molds, principle and process of injection-compression
molding, structure design of injection-compression mold, calculation of injection-compression molding
pressure, selection of injection-compression molding equipment, quality and defect analysis of injection-
compression molded parts, application examples of injection-compression molds.
Key words: design and forming of compression molded part; compression molding technology and mold
structure design; compressing molding equipment; quality and defect of compressing molded part; selection
of injection-compression molding technology and equipment; structure design of injection-compression mold;
quality and defect analysis of injection-compression molded part
(未完待续)
(R-03)
新款耐候性 TPE 上线,特别适合汽车外饰
The new weather resistant TPE is launched, it is especially suitable for automobile exterior decoration
凯柏胶宝 ® 推出汽车应用的全新热塑性弹性体产品系列,具有极佳的耐候性和 PP 包胶性和抗紫外线性能。
这种全新热塑宝 K 系列的 TPE 材料主要面向汽车外饰应用,如导水板和车窗密封件等。
汽车外饰应用所使用的塑料容易受到恶劣天气的影响,这种影响对车辆尤为明显。用于汽车外饰应用的塑料
材料通常需要具有耐候性,可抵御紫外线照射对汽车部件外观和机械性能的不利影响。
最新热塑宝 K 的 UV/HF/SF 系列具有极高的抗紫外线和耐候性能,兼具超强 PP 包胶性能。
热塑性弹性体无需焊接即可加工成精准均匀的表面。这种性能源自于 TPE 极佳的流动性。这些 TPE 材料可
通过双组分注塑成型工艺轻松精确地加工。
在这个加工步骤中,它们能够与硬组分 PP 实现极佳的包胶性。多组分注塑成型工艺可实现最佳包胶性能,
无需额外的组装步骤,可减少组件的循环时间。
UV/HF/SF 热塑宝 K 可为客户带来许多优势,例如提高设计价值和加工经济效益、扩展产品功能等。
这些产品可满足不同应用领域和汽车行业的典型要求,已进行 2 年循环的 PV3929 Kalahari 自然耐候试验
和户外用途 PV3930 Florida 试验。
通过这些努力,该产品可满足更广泛的汽车外饰应用,对亚太地区变化多端的气候环境具有更强的抵抗能力,
从而确保车辆在更长时间内保持卓越性能,让用户节省车辆维护成本。
摘编自 “CPRJ 中国塑料橡胶 ”
(R-03)
·8· 第 45 卷 第 18 期