[1]曹国富,卢启威.方矩管管壁增厚的原因分析[J].焊管,2010,33(7):55-59.[doi:1001-3938(2010)07-0055-05]
 CAO Guo-fu,LU Qi-wei.Discussion on Thickening Reason of Rectangular Pipe Wall Thickness[J].,2010,33(7):55-59.[doi:1001-3938(2010)07-0055-05]
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方矩管管壁增厚的原因分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
33
期数:
2010年第7期
页码:
55-59
栏目:
工艺与设备
出版日期:
2010-07-28

文章信息/Info

Title:
Discussion on Thickening Reason of Rectangular Pipe Wall Thickness
文章编号:
1001-3938(2010)07-0055-05
作者:
曹国富卢启威
(佛山市万乘实业有限公司,广东 佛山 528316)
Author(s):
CAO Guo-fuLU Qi-wei
(Guangdong Foshan Wansheng Industry Co.,Ltd.,Foshan 528316,Guangdong,China)
关键词:
方矩管壁厚增量周向收缩变形管坯增量控制非同时性接触
Keywords:
rectangular pipeswall thickness incrementcircumferential shrinkdeformed bloomcontrol incrementnon-simultaneous contact
分类号:
TG335.7
DOI:
1001-3938(2010)07-0055-05
文献标志码:
B
摘要:
检测发现,在圆变方矩管成型工艺中,管壁均有不同程度増厚现象,并且具有6个特点。指出形成壁厚增量的根本原因是:管坯在孔形变型力作用下,周向长度被压短,形成金属流动而转移到管坯断面上,表现为管壁增厚,内腔变小。同时,提出了控制壁厚增量的思路和方法,并已生产了若干批壁厚增量为0的方矩管。
Abstract:
Wall thickness of rectangular pipe increased at different degree during the process,in which circular pipe was extruded to rectangular pipe and posses 6 characteristics.It pointed out the main reason of wall thickness thickening,circumferential length of pipe bloom was shortened under pass deformation force,formed metal and transferred on pipe bloom surface,so wall thickness of pipe increased and inside diameter of pipe diminished.At the same time,the idea and method of controlling wall thickness thickening were put forward,and several lots of rectangular pipes have been produced which wall thickness had no increment.

参考文献/References:

[1]戴生宙.机械基础[M].北京:科学普及出版社,1982.
[2]曹国富.简析影响焊管质量的带钢增量[J].上海金属,1995(4):43-46.
[3]尤敬成.轧制折缘异型断面型钢轧制压力计算[J].上海金属,1995(4):38-42.
[4]曹国富.采用公称尺寸设计法设计异型轧辊孔型[J].钢管,2005(6):23-27.
[5]赵毅彪,吴佩琰.半圆、矩形管的孔型设计与产品试制[J].焊管,1998(2):41-47.

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 ZHU Jian-ming,CHEN Ge.Classified Rectangle Pipe Combination Mould Roller[J].,2010,33(7):41.[doi:1001-3938(2010)01-0041-04]
[2]朱剑明,吕晟.方矩管直接成方成型原理及成型工艺[J].焊管,2011,34(7):38.

备注/Memo

备注/Memo:
作者简介:曹国富(1957-)男,工程师,长期从事焊管孔型设计、工艺研究和现场管理工作,发表论文30余篇。
收稿日期:2009-12-02
更新日期/Last Update: