CN2272089Y - 超长环缝精细管 - Google Patents

超长环缝精细管 Download PDF

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Publication number
CN2272089Y
CN2272089Y CN 96246173 CN96246173U CN2272089Y CN 2272089 Y CN2272089 Y CN 2272089Y CN 96246173 CN96246173 CN 96246173 CN 96246173 U CN96246173 U CN 96246173U CN 2272089 Y CN2272089 Y CN 2272089Y
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China
Prior art keywords
utility
model
tube
over
fine pipe
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Expired - Fee Related
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CN 96246173
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English (en)
Inventor
张守义
陈亮山
周雪琴
杨玉东
宋玉珍
赵德建
陈怀宁
董秀中
祝时昌
潘兴
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Institute of Metal Research of CAS
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Institute of Metal Research of CAS
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Priority to CN 96246173 priority Critical patent/CN2272089Y/zh
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Publication of CN2272089Y publication Critical patent/CN2272089Y/zh
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Expired - Fee Related legal-status Critical Current

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Abstract

一种超长环缝精细管,其特征在于:该精细管由无缝管之间焊合而成,环形焊缝接头处与管体间连接平滑,本实用新型将无缝管对接起来,焊缝只占横截面的1～2%,经过冷变形,使环焊缝的铸造组织成为与基材管相同的变形组织,其强度、耐腐蚀性与无缝管相近,而且理论上可以达到无限长。

Description

超长环缝精细管
本实用新型涉及金属或合金管材，特别提供了一种超长环缝精细管。
超长精细管一般指10以下，长度在千米以上的管材。目前这种细长管一直是有缝焊管，焊管有一条通长的纵焊缝，约占细长管横截面的20～30％，严重影响了管材的强度和耐腐蚀性能；而且，这种长的焊缝难免有缺陷；同时，有缝焊管也难于做到千米以上的长度，中间也还会有对接环焊缝，这就更增加了有缝焊管的弱点。无缝管虽然没有有缝焊管的缺点，但长度受到限制，一般无缝管的长度仅为10米。
本实用新型的目的在于提供一种超长的精细管，其焊缝少，且强度和耐腐蚀性能好。
本实用新型提供了一种超长环缝精细管，其特征在于：该精细管由无缝管(1)之间焊合而成，环形焊缝接头(2)处与管体(1)间连接平滑。本实用新型将无缝管对接起来，焊缝只占横截面的1～2％，经过冷变形，使环焊缝的铸造组织成为与基材管相同的变形组织，其强度、耐腐蚀性与无缝管相近，而且理论上可以达到无限长。
下面结合附图通过实施例详述本实用新型
附图1为生啤酒机的冷凝管结构示意图。
实施例
如图1所示，为生啤酒机上用的冷凝管，用三根无缝管(1)环焊而成，接头处(2)平滑，长27米，直径6.4mm，壁厚0.5mm。
本实用新型还可用于油田测井压力管，测井温热偶管，长度均在2000m以上。

Claims (1)

1.一种超长环缝精细管，其特征在于：该精细管由无缝管(1)之间焊合而成，环形焊缝接头(2)处与管体(1)间连接平滑。
CN 96246173 1996-12-26 1996-12-26 超长环缝精细管 Expired - Fee Related CN2272089Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96246173 CN2272089Y (zh) 1996-12-26 1996-12-26 超长环缝精细管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96246173 CN2272089Y (zh) 1996-12-26 1996-12-26 超长环缝精细管

Publications (1)

Publication Number Publication Date
CN2272089Y true CN2272089Y (zh) 1998-01-07

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ID=33918947

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96246173 Expired - Fee Related CN2272089Y (zh) 1996-12-26 1996-12-26 超长环缝精细管

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CN (1) CN2272089Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104110531A (zh) * 2013-04-19 2014-10-22 上海金保莱不锈钢有限公司 一种用于无缝管的管道装置
CN104110532A (zh) * 2013-04-19 2014-10-22 上海金保莱不锈钢有限公司 一种用于拉拔管的管道装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104110531A (zh) * 2013-04-19 2014-10-22 上海金保莱不锈钢有限公司 一种用于无缝管的管道装置
CN104110532A (zh) * 2013-04-19 2014-10-22 上海金保莱不锈钢有限公司 一种用于拉拔管的管道装置

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