塑料科技2025，Vol.53Issue(5)：122-127,6.DOI:10.15925/j.cnki.issn1005-3360.2025.05.024
UPVC宽辐共挤微发泡节能材料配方与工艺研究
Study on Formula and Process of UPVC Micro-foam Wide-radius Co-extrusion Energy-saving Materials
徐军1
作者信息
- 1. 连云港杰瑞自动化有限公司,江苏 连云港 222001
- 折叠
摘要
Abstract
Through experiments and production line pilot verification,the paper successfully developed a weather-resistant micro-foam co-extrusion balanced fusion formula process to ensure that the co-extrusion does not delaminate under repeated high and low temperature changes.The focus is on the development of high temperature control precision,large extrusion capacity 90 parallel twin screw and 55 conical twin screw extruders suitable for polyvinyl chloride multi-layer co-extrusion foamed boards,and the flow channel of the co-extrusion distributor is optimized.The upper die lip gap is designed to be adjustable,and a flow limiting rod is set in the mold.The micro-foaming main engine and the co-extruder are coordinated and controlled,solving the key technology of uniform flow of co-extruded hard materials and foaming materials in the distributor and mold.The three-stage dry cooling shaping improvement of three sets of cooling shaping plates,eight sets of cooling rollers and two sets of traction rollers has also solved the problem of on-line cooling of large-spoke and large-thickness sheet.It can realize continuous extrusion of foam board with adjustable thickness from 8 to 20 mm and width of 1 250 mm,which provides a technical solution for the production of foam board with different thicknesses in the same co-extrusion mold.关键词
聚氯乙烯/宽辐共挤工艺/微发泡/节能材料/研制Key words
UPVC/Wide radial co-extrusion process/Micro-foam/Energy-saving material/Research and development分类
化学化工引用本文复制引用
徐军..UPVC宽辐共挤微发泡节能材料配方与工艺研究[J].塑料科技,2025,53(5):122-127,6.
