文章摘要
Study on Structural Strength of Stepped Direct-pressure Vulcanization Inner Mold of Tire
Received:April 02, 2022  Revised:April 02, 2022
DOI：10.12136/j.issn.1000-890X.2023.11.0898
Key Words: tire；stepped direct-pressure vulcanization inner mold；structural strength；Abaqus software
Author NameAffiliationE-mail
ZHANG Liyan Beijing University of Chemical Technology；National Engineering Laboratory of Tire Design and Manufacturing Technology zhangly@mail.buct.edu.cn 
SHI Wenzhong Beijing University of Chemical Technology；National Engineering Laboratory of Tire Design and Manufacturing Technology  
JIN Xiaozhe Beijing University of Chemical Technology；National Engineering Laboratory of Tire Design and Manufacturing Technology  
TAN Jing Beijing University of Chemical Technology；National Engineering Laboratory of Tire Design and Manufacturing Technology  
JIAO Zhiwei Beijing University of Chemical Technology；National Engineering Laboratory of Tire Design and Manufacturing Technology  
YAN Hua Beijing University of Chemical Technology；National Engineering Laboratory of Tire Design and Manufacturing Technology  
YANG Weimin* Beijing University of Chemical Technology；National Engineering Laboratory of Tire Design and Manufacturing Technology yangwm@mail. buct. edu. cn 
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Abstract:
      The structural strength of the stepped direct-pressure vulcanization inner mold（referred to as inner mold） for 225/40R18 tire was studied using Abaqus software.The results showed that under the vulcanization pressure of 4.6 MPa，the maximum stress in the inner mold occured on the wide drum tile wedge block slider，which was much smaller than the allowable stress of the slider material beryllium bronze.The maximum deformation displacement of the inner mold mechanism was 0.140 7 mm，and this deformation was elastic deformation，which would not affect the mechanism movement and the quality of the tire.The structural strength of each component of the inner mold met the design requirements.This study could provide a reference for the industrial application of stepped direct pressure vulcanization inner mold.
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