A Study of Screw Extruded-cross-linked Polyethylene foam process

• Main Authors: Win-yong Yang, 楊文勇
• Other Authors: Min-Shan Liu
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/83377460370625789486

碩士 === 逢甲大學 === 材料與製造工程所 === 95 === Screw Extruded-Crosslinked-foamed Polyethylene is Extruded with mixed raw-materials by single extruder. The raw-materials were forming into mother-sheet with roller after extruded. Additives in mother sheet is activated by heat in high-temperature oven after formed. The heat transform the mother-sheet into melted-foamed sheet. This paper will guide you to discuss, refer to papers ,research and plan to decrease the heats , improve the shape ， measure effective and capacity of the process and increase it. The plan include： 1. Hole axial screw. Cooling the screw by irculating and adjustable-temperature water 2. T-rack die substitute for T die. 3. Hydraulic device with optics-eye for adjusting foamed sheet move forward locations in front of roller device. The effective are increased 22.5％ ,capacity are increased 123％ by implementing the plans and research the best operating condition by trying-error method.