WO2015135343A1 - 一种多功能锅炉管 - Google Patents

一种多功能锅炉管 Download PDF

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Publication number
WO2015135343A1
WO2015135343A1 PCT/CN2014/092677 CN2014092677W WO2015135343A1 WO 2015135343 A1 WO2015135343 A1 WO 2015135343A1 CN 2014092677 W CN2014092677 W CN 2014092677W WO 2015135343 A1 WO2015135343 A1 WO 2015135343A1
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WO
WIPO (PCT)
Prior art keywords
pipe body
multifunctional boiler
present
boiler tube
multifunctional
Prior art date
Application number
PCT/CN2014/092677
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English (en)
French (fr)
Inventor
温庆
Original Assignee
常熟市兰达兰基钢管附件有限公司
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Publication date
Application filed by 常熟市兰达兰基钢管附件有限公司 filed Critical 常熟市兰达兰基钢管附件有限公司
Publication of WO2015135343A1 publication Critical patent/WO2015135343A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat

Definitions

  • the invention relates to a multifunctional boiler tube.
  • Pipes are used in boilers, which have high requirements on the pressure resistance, heat resistance and corrosion resistance of pipes, and their tensile strength and yield strength also have certain requirements. Therefore, it is necessary to develop a boiler tube which is low in cost and high in strength and resistant to oxidation and corrosion.
  • the technical problem mainly solved by the present invention is to provide a multi-functional boiler tube which has better pressure resistance performance, heat resistance and corrosion resistance, and lower cost.
  • a technical solution adopted by the present invention is to provide a multifunctional boiler tube comprising a seamless steel pipe body, the composition of the pipe body comprising the following mass percentage components: carbon 15% to 20%, Silicon is 0.17% to 0.23%, phosphorus is 0.38% to 0.63%, manganese is 0.15% to 0.35%, molybdenum is 0.3% to 0.6%, and the rest is iron.
  • the composition of the tubular body comprises 0.45% by mass of phosphorus and 0.25% by mass of manganese.
  • the surface of the pipe body is impregnated with nitrogen to form a nitrided layer, and the nitrided layer has a thickness of 0.1 mm to 0.2 mm.
  • the beneficial effects of the invention are that the multi-functional boiler tube has better pressure resistance performance and heat resistance and corrosion resistance, and the cost is lower.
  • FIG. 1 is a schematic view showing the structure of a multifunctional boiler tube of the present invention.
  • an embodiment of the present invention includes:
  • a multifunctional boiler tube comprising a seamless steel pipe body 1, the composition of the pipe body 1 comprising the following mass percentage components: carbon 15% to 20%, silicon 0.17% to 0.23%, phosphorus 0.38% to 0.63%, Manganese is 0.15% to 0.35%, molybdenum is 0.3% to 0.6%, and the rest is iron.
  • the composition of the pipe body 1 comprises 0.45% by mass of phosphorus and 0.25% by mass of manganese.
  • the surface of the pipe body 1 is impregnated with nitrogen to form a nitrided layer 2, and the nitrided layer 2 has a thickness of 0.1 mm to 0.2 mm.
  • the multifunctional boiler tube of the invention has better pressure resistance performance and heat resistance and corrosion resistance, and has lower cost.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

一种多功能锅炉管，包括无缝钢管管体，管体的组成包括以下质量百分比的成分：碳１５％～２０％，硅０．１７％～０．２３％，磷０．３８％～０．６３％，锰０．１５％～０．３５％，钼０．３％～０．６％，其余为铁，管体的表面渗有氮形成渗氮层，渗氮层的厚度为０．１ｍｍ～０．２ｍｍ。该多功能锅炉管的耐压性能和耐热以及抗腐蚀性能较好，成本较低。

Description

一种多功能锅炉管 技术领域
本发明涉及一种多功能锅炉管。
背景技术
锅炉中用到管道，对管道的耐压性能和耐热以及抗腐蚀性能都有较高的要求，其抗拉强度和屈服强度也都有一定的要求。因此开发一种成本低而强度大、耐氧化腐蚀的锅炉管是必要的。
发明内容
本发明主要解决的技术问题是提供一种多功能锅炉管，该多功能锅炉管的耐压性能和耐热以及抗腐蚀性能较好，成本较低。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种多功能锅炉管，包括无缝钢管管体，所述管体的组成包括以下质量百分比的成分：碳15％～20％，硅0.17％～0.23％，磷0.38％～0.63％，锰0.15％～0.35％，钼0.3％～0.6％，其余为铁。
在本发明一个较佳实施例中，所述管体的组成包括质量百分比为0.45％的磷和质量百分比为0.25％的锰。
在本发明一个较佳实施例中，所述管体的表面渗有氮形成渗氮层，所述渗氮层的厚度为0.1mm～0.2mm。
本发明的有益效果是：该多功能锅炉管的耐压性能和耐热以及抗腐蚀性能较好，成本较低。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本发明的多功能锅炉管的结构示意图。
附图中各部件的标记如下：1、管体，2、渗氮层。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请参阅图1，本发明实施例包括：
一种多功能锅炉管，包括无缝钢管管体1，所述管体1的组成包括以下质量百分比的成分：碳15％～20％，硅0.17％～0.23％，磷0.38％～0.63％，锰0.15％～0.35％，钼0.3％～0.6％，其余为铁。
优选地，所述管体1的组成包括质量百分比为0.45％的磷和质量百分比为0.25％的锰。
优选地，所述管体1的表面渗有氮形成渗氮层2，所述渗氮层2的厚度为0.1mm～0.2mm。
本发明多功能锅炉管的有益效果是：
本发明的多功能锅炉管的耐压性能和耐热以及抗腐蚀性能较好，成本较低。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (3)

  1. 一种多功能锅炉管，其特征在于，包括无缝钢管管体，所述管体的组成包括以下质量百分比的成分：碳15％～20％，硅0.17％～0.23％，磷0.38％～0.63％，锰0.15％～0.35％，钼0.3％～0.6％，其余为铁。
  2. 根据权利要求1所述的多功能锅炉管，其特征在于，所述管体的组成包括质量百分比为0.45％的磷和质量百分比为0.25％的锰。
  3. 根据权利要求1所述的多功能锅炉管，其特征在于，所述管体的表面渗有氮形成渗氮层，所述渗氮层的厚度为0.1mm～0.2mm。
PCT/CN2014/092677 2014-03-14 2014-12-01 一种多功能锅炉管 WO2015135343A1 (zh)

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CN201410093236.4 2014-03-14
CN201410093236.4A CN103836269A (zh) 2014-03-14 2014-03-14 一种多功能锅炉管

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CN104896741A (zh) * 2015-06-19 2015-09-09 山东前田热能技术有限公司 新型铸铁冷凝锅炉用锅炉片

Citations (2)

* Cited by examiner, † Cited by third party
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CN101665891A (zh) * 2009-08-29 2010-03-10 浙江久立特材科技股份有限公司 不锈耐热合金钢无缝钢管及其生产方法
CN201502793U (zh) * 2009-07-27 2010-06-09 梅河口市弘业无缝钢管有限公司 高防腐耐磨渗氮钢油管

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GB2264764B (en) * 1992-02-24 1995-06-28 Meyrick Hugh Hadfield Corrosion resistant pipe
CN102330035B (zh) * 2011-10-25 2013-11-06 宝山钢铁股份有限公司 一种耐热钢、耐热钢管及其制造方法
CN102690995A (zh) * 2012-06-01 2012-09-26 内蒙古包钢钢联股份有限公司 一种耐高温无缝钢管及其生产方法
CN103334056A (zh) * 2013-03-25 2013-10-02 天津理工大学 一种用于火力发电锅炉管的高Cr铁素体耐热钢及应用
CN103215494A (zh) * 2013-04-10 2013-07-24 内蒙古包钢钢联股份有限公司 一种含Re无缝Cr-Mo-V型合金钢管及其生产方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201502793U (zh) * 2009-07-27 2010-06-09 梅河口市弘业无缝钢管有限公司 高防腐耐磨渗氮钢油管
CN101665891A (zh) * 2009-08-29 2010-03-10 浙江久立特材科技股份有限公司 不锈耐热合金钢无缝钢管及其生产方法

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