[1]潘亚敏,石素宇,常宝宝,等.退火对等规聚丙烯微注射制品性能及结构的影响[J].郑州大学学报(工学版),2013,34(06):59-62,89.[doi:10.3969/j.issn.1671-6833.2013.06.15]
　LI JielCHEN Bin.Analysis ofContinuous Rigid FrameBridgeJackingForceCalculation andOptimization[J].Journal of Zhengzhou University (Engineering Science),2013,34(06):59-62,89.[doi:10.3969/j.issn.1671-6833.2013.06.15]
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退火对等规聚丙烯微注射制品性能及结构的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34卷
期数:
2013年06期
页码:
59-62,89
栏目:
出版日期:
2013-12-30

文章信息/Info

Title:
Analysis ofContinuous Rigid FrameBridgeJackingForceCalculation andOptimization
作者:
潘亚敏; 石素宇; 常宝宝; 等.
郑州大学材料科学与工程学院,河南郑州,450001, 郑州大学材料科学与工程学院,河南郑州,450001, 郑州大学材料科学与工程学院,河南郑州,450001, 郑州大学材料科学与工程学院,河南郑州,450001, 郑州大学材料科学与工程学院,河南郑州,450001, 郑州大学材料科学与工程学院,河南郑州,450001, 郑州大学材料科学与工程学院,河南郑州,450001
Author(s):
LI Jiel．CHEN Bin2
Sch001 of Civil Engineering，Zhengzhou University，Zhengzhou450001，China；2．Henan HighwaySupervision Consultation Co．Ltd．，Zhengzhou450000，China
关键词:
退火;  等规聚丙烯;  微注射成型;  拉伸性能;  微观结构
Keywords:
Continuous rigid frame bridge; closure; jacking force; temperature correction
分类号:
TQ320.66
DOI:
10.3969/j.issn.1671-6833.2013.06.15
文献标志码:
A
摘要:
采用微注射成型制备等规聚丙烯(iPP)制品,通过拉伸测试、广角X射线衍射法(WAXD)、小角X射线散射法(SAXS)和差示扫描量热法(DSC)研究了退火对微注塑iPP制品的拉伸性能和微观结构的影响.拉伸结果表明:经过不同温度(100,120,140℃)退火后,试样的拉伸性能都得到较大提高,其中,140℃退火后拉伸强度和模量分别提高了100.30％和90.32％,断裂伸长率提高了23.09％,断裂韧性提高了156.44％.微观结构分析结果表明:经过退火后,拉伸强度和拉伸模量的增加主要归因于结晶度和片晶厚度的
Abstract:
Taking the Baishuiyu bridge as the back ground，using the finite element software MIDAS／Civil to buih the space beam finite element modelof five span continuous rigid frame bridge，horizontaldisplacement of the finished bridge’s main girder is analyzed under differentjackingforce，then effect among the closure’s temperature．jacking forceand horizontal displacement is discussed．Through numerical calculation and con‘ trast。it drawsthe conclusion that the relationbetweenjackingforceand horizontal displacement are linearvar。iation．The effect of iacking force of the side middle span and middle span to pier top’s horizontal displace。ment is different．When iackingforce of sidemiddle span is increased，it is favorable to the side span’s main pier of the horizontal displacement and unfavorable to the middle span’s main pier of the horizontal displace。ment．When iackingforce of middle span is increased，it is favorable to all main pier of the horizontal dis。Dlacement．So to the five span continuous rigid frame bridge，it should preferentially adjust jacking force of main span．Finally．according to temperature of the fact site，to use relation between closure’s temperature andhorizontal displacement，jacking force is adjusted to optimize thejacking force．

参考文献/References:

[1]崔志香，刘春太，司军辉，等．带有微结构特征的微注塑过程填充分析[J]．郑州大学学报:工学版，2009 ,30( 1 ) :65 - 69.

[2] PIOTTER V，BAUER W，BENZLER T,et al. Injec-tion molding of components for microsystems[ J ]. Mi-crosystem Technologies ，2001 ,7(3 ) : 99 - 102.

更新日期/Last Update: 1900-01-01