Page 20 - 《橡塑技术与装备》2021年16期（8月下半月塑料）

目 次 Contents █ No.16 2021 █

■ ENTERPRISE COLUMN
Focus on energy saving, green injection molding and “exhausted drying-free” to achieve “Huayi”
........................................................................................................................................................RPTE Reporter（1）
■ EXPERT LECTURE
Pressing technology and mold design—— Part II Plastic injection molding
Lecture 10 Calculation of injection molding pressure and selection of equipment ....................Hong Shenzhang（5）
■ THEORY AND RESEARCH
Research on monitoring device and intelligent management system of injection molding system
..............................................................................................................................................Liu Zongyi, Luo Gang（9）
Study on application technology of HDPE pipeline in salt lake working condition ............................. Yin Weihua（14）
■ SPECIAL AND COMPREHENSIVE REVIEW
Biodegradable plastics are in an important stage of development (Part 2)..............................................Tao Yongliang（19）
Research progress of additive modified urea formaldehyde resin adhesive ................................................Zhang Lan（25）
■ NEW TECHNOLOGIES AND NEW PRODUCTS
Cloning design and manufacture of super precision injection mold for large and small parts of transfer switch
.........................................................................................................................................Wen Genbao, Wen Li, Shi Wen（29）
■ MATERIALS AND APPLICATION

Application of speed control in cable equipment in constant tension system ..........................................Zhao Yin（35）
■ TESTING AND ANALYSIS
Abnormal analysis and solution of ABS produced by twin-screw extruder ...................................................Fan Wenbo（41）
Comparison between tube furnace method and muffle furnace method for determination of ash in random copolymerized
polypropylene (PP-R) tube ............................................................Zhong Jianping, Yan Songzhou, Lin Mingsong, Yu Chunna,
Xiao Jianwen, Lin Qixing, Li Daixu, Liang Jian, Gao Zhihao, Wang Wanjuan（46）
■ EQUIPMENT MANAGEMENT AND MAINTENANCE
Application advantages and adjustment experience of center plus surface winding in film blowing machine
.................................................................................................................................Wang Shuyuan, Wu Yanming（50）
■ MANUFACTURING AND PROCESS CONTROL

Guarantee method for machining accuracy of bearing seat / cover of roller-head extruder .........Wang Hongjian（54）
■ DOMESTIC AND INTERNATIONAL TRENDS .................................................................................... （59）
■ PATENT ABSTRACTS .............................................................................................................................. （63）

THE MAIN CONTENTS OF NEXT ISSUE
Pressing technology and mold design—— Part II Plastic injection molding
Lecture 11 Quality and defect analysis of injection molded parts ........................................................Hong Shenzhang
Introduction to modification of biodegradable plastic PBAT materials ........................................................Tao Yongliang
Effect of vulcanization system on properties of NBR / rubber plastic alloy composites ................Wang Chenyang, et al
Design of anti-blocking device during blanking for plastic extruder ....................................................Zhang Youxin, et al
Development and application progress of NM rare earth cerium dioxide ................................................... Wang Duoren