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CN104565578A - Structure for enhancing strength of centrifugal self-propagating ceramic-lined composite steel pipe - Google Patents

Structure for enhancing strength of centrifugal self-propagating ceramic-lined composite steel pipe Download PDF

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Publication number
CN104565578A
CN104565578A CN201510039941.0A CN201510039941A CN104565578A CN 104565578 A CN104565578 A CN 104565578A CN 201510039941 A CN201510039941 A CN 201510039941A CN 104565578 A CN104565578 A CN 104565578A
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China
Prior art keywords
steel pipe
ceramic
propagating
grooves
self
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CN201510039941.0A
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Chinese (zh)
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CN104565578B (en
Inventor
朱昱
葛禹锡
倪红军
李志扬
孙书刚
汪兴兴
王建萍
王小美
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NANTONG GAOXIN WEARABLE TECHNOLOGY Co Ltd
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Nantong University
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Priority claimed from CN201310306450.9A external-priority patent/CN103453234B/en
Publication of CN104565578A publication Critical patent/CN104565578A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/14Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00Protection of pipes or objects of similar shape against external or internal damage or wear

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

本发明公开了一种增强离心自蔓延陶瓷内衬复合钢管强度的结构,包括钢管,钢管的内表面开设有槽,钢管的内表面内衬有自蔓延反应形成的Al2O3陶瓷内衬;所述的钢管内表面开的槽为螺旋槽与长方形通槽的组合,既有4-8个分布于钢管圆周上的长方形通槽,又有沿钢管中心线方向,旋向为左旋或右旋的螺旋槽。发明结构合理,采用的钢管内表面开槽,使得陶瓷涂层与基体的接触面积增加,提高了传统离心自蔓延陶瓷内衬复合钢管陶瓷涂层的抗压剪强度;陶瓷涂层部分深入槽中,使陶瓷内衬复合管具有较强的抗冲击作用,有效地防止了涂层从基体脱落的现象。

The invention discloses a structure for strengthening the strength of a centrifugal self-propagating ceramic-lined composite steel pipe, which comprises a steel pipe, the inner surface of which is provided with grooves, and the inner surface of the steel pipe is lined with an Al2O3 ceramic lining formed by self-propagating reaction; The grooves on the inner surface of the steel pipe are a combination of spiral grooves and rectangular through grooves. There are not only 4-8 rectangular through grooves distributed on the circumference of the steel pipe, but also spiral grooves along the centerline of the steel pipe with a left-handed or right-handed direction of rotation. . The structure of the invention is reasonable, and the inner surface of the steel pipe is grooved, which increases the contact area between the ceramic coating and the substrate, and improves the compressive shear strength of the ceramic coating of the traditional centrifugal self-propagating ceramic lining composite steel pipe; the ceramic coating part penetrates into the groove , so that the ceramic-lined composite pipe has a strong impact resistance, effectively preventing the coating from falling off the substrate.

Description

Strengthen the structure of centrifugal self-propagating ceramic-lined composite steel tube intensity
The divisional application that the application is application number 201310306450.9, the applying date: 2013.7.22, title " strengthens structure and the preparation method of centrifugal self-propagating ceramic-lined composite steel tube intensity ".
Technical field
The present invention relates to a kind of structure strengthening centrifugal self-propagating ceramic-lined composite steel tube intensity, belong to field of surface engineering technique.
Background technique
In industrialization of the country construction process, need the resources such as a large amount of ores, oil, pipeline transport, as the cost-effective long distance delivery instrument of one, occupies critical role in national economic development.Because the resources such as transported oil and ore have corrosion and percussion usually to delivering pipe, common steel pipe cannot reach the wear-resisting and decay resistance that transport point needs.
Stupalith has the features such as wear-resisting, corrosion-resistant, high temperature resistant, often it can be used as the inside liner of Stainless Steel Tube, is made into ceramic-lined composite steel tube for the wear-resisting field of pipeline.Pottery and common steel tube compound in, researcher have employed multiple method.Paster wear-resistant pipe is industrial comparatively common a kind of abrasion-proof pipe, namely adopts viscose glue that the alumina ceramic plate with radian is pasted onto inner-walls of duct, forms pipeline wearing layer.This kind of abrasion-proof pipe preparation process is simple, and wear-resisting property is better, but alumina ceramic plate and pipeline matrix rely on viscose glue to be connected, and adhesive strength is not high, and fabrication cycle is long, and these all limit the application of paster wear-resistant pipe.Spot welding assembling caliper type wear-resistant pipe utilizes high temperature resistant tenacity viscose that the alumina ceramic plate of middle with hole is pasted onto inner-walls of duct, and pottery is welded on steel pipe inner wall through aperture by points of engagement Welding securely simultaneously.For protection solder joint, screw on pottery block above again.This kind of production technique adds somewhat to the adhesive strength of pottery and pipeline matrix, but pottery still mainly relies on viscose glue with the combination of matrix, and adhesive strength is limited.In addition, all relate to and manually paste porcelain in the manufacture process of paster wear-resistant pipe and spot welding assembling caliper type wear-resistant pipe, the diameter of therefore made abrasion-proof pipe is usually comparatively large, the production of small-bore abrasion-proof pipe in being not suitable for.
Centrifugal self-propagating composite pipe with ceramic lining is the composite pipe adopting " SHS process-high-speed centrifugation technology " to manufacture.This kind of method technique is simple, and under high temperature and high speed, form ceramic layer and transition layer, and ceramic layer and transition layer form mechanical bond, transition layer and steel pipe matrix form metallurgy combination, and adhesive strength is better than viscose glue and combines.But because self-propagating reaction is comparatively fierce, in course of reaction, thermal losses is large, and the finite thickness that steel pipe inner wall is melted, causes the adhesive strength of metallurgy combination part limited, there will be the phenomenon that ceramic coating comes off under the operating mode of some HI high impact.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, the structure of the enhancing centrifugal self-propagating ceramic-lined composite steel tube intensity of favorable working performance and preparation method.
Technical solution of the present invention is:
Strengthen a structure for centrifugal self-propagating ceramic-lined composite steel tube intensity, it is characterized in that: comprise steel pipe, the internal surface of steel pipe offers groove, and the Al2O3 being lined with self-propagating reaction formation in the internal surface of steel pipe is ceramic-lined.
The groove that described steel pipe internal-surface is opened is the combination of single spiral chute or single rectangular groove or spiral chute and rectangular groove.
Described Al2O3 is ceramic-lined comprises ceramic layer and the transition layer between ceramic layer and the internal surface of steel pipe.
Strengthen a manufacture method for the structure of centrifugal self-propagating ceramic-lined composite steel tube intensity, it is characterized in that: comprise the following steps:
1. derusting by sandblasting, roughening treatment are carried out to steel pipe internal-surface, and slot at steel pipe internal-surface;
2. the self-propagating powder of Al+ Fe2O3 system is put into steel pipe;
3. be placed on centrifuge by steel pipe, start centrifuge, igniting causes self-propagating reaction, obtains product.
Single spiral chute is along steel pipe centerline direction, and rotation direction is left-handed or dextrorotation.
Single rectangular groove is distributed in steel pipe circumferentially, and groove number is 4-8.
The combination of spiral chute and rectangular groove: existing 4-8 is distributed in steel pipe rectangular groove circumferentially, and have again along steel pipe centerline direction, rotation direction is spiral chute that is left-handed or dextrorotation.
The present invention is rational in infrastructure, and the steel pipe internal-surface fluting of employing, makes the area of contact of ceramic coating and matrix increase, improve the anti-compression shear strength of conventional centrifugal self-propagating ceramic-lined composite steel tube ceramic coating; Ceramic coating part is goed deep in groove, makes composite pipe with ceramic lining have stronger shock resistance effect, effectively prevent the phenomenon that coating comes off from matrix.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is that in the present invention, internal surface opens single spiral fluted steel pipe.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the steel pipe that in the present invention, internal surface opens single rectangular groove.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the steel pipe that in the present invention, internal surface opens the combination of spiral chute and rectangular groove.
Fig. 6 is the left view of Fig. 5.
The ceramic-lined composite steel tube of Fig. 7 obtained by the embodiment of the present invention 2,3.
Fig. 8 is the ceramic-lined composite steel tube obtained by embodiment 1.
Reference character in figure
Steel pipe matrix 1, transition layer 2, ceramic layer 3.
Embodiment:
Embodiment 1: carry out derusting by sandblasting, roughening treatment to steel pipe internal-surface, and steel pipe internal-surface fluting, slot as single spiral chute 4.The self-propagating powder of Al+Fe2O3 system is placed in steel pipe, and is placed on centrifuge by steel pipe, start centrifuge, after stabilization of speed, igniting causes self-propagating reaction, obtains Al2O3 ceramic-lined composite steel tube.Described Al2O3 is ceramic-lined comprises ceramic layer and the transition layer between ceramic layer and the internal surface of steel pipe.
Embodiment 2: carry out derusting by sandblasting, roughening treatment to steel pipe internal-surface, and steel pipe internal-surface fluting, slot as single rectangular groove 5.The self-propagating powder of Al+Fe2O3 system is placed in steel pipe, and is placed on centrifuge by steel pipe, start centrifuge, after stabilization of speed, igniting causes self-propagating reaction, obtains Al2O3 ceramic-lined composite steel tube.Described Al2O3 is ceramic-lined comprises ceramic layer and the transition layer between ceramic layer and the internal surface of steel pipe.
Embodiment 3: carry out derusting by sandblasting, roughening treatment to steel pipe internal-surface, and at steel pipe internal-surface fluting, and institute slots the combination into spiral chute 6 and rectangular groove 7.The self-propagating powder of Al+Fe2O3 system is placed in steel pipe, and is placed on centrifuge by steel pipe, start centrifuge, after stabilization of speed, igniting causes self-propagating reaction, obtains Al2O3 ceramic-lined composite steel tube.Described Al2O3 is ceramic-lined comprises ceramic layer and the transition layer between ceramic layer and the internal surface of steel pipe.

Claims (1)

1.一种增强离心自蔓延陶瓷内衬复合钢管强度的结构,其特征是:包括钢管,钢管的内表面开设有槽,钢管的内表面内衬有自蔓延反应形成的Al2O3 陶瓷内衬;所述的钢管内表面开的槽为螺旋槽与长方形通槽的组合,既有4-8 个分布于钢管圆周上的长方形通槽,又有沿钢管中心线方向,旋向为左旋或右旋的螺旋槽;所述Al2O3 陶瓷内衬包括陶瓷层和陶瓷层与钢管的内表面之间的过渡层; 1. A structure for enhancing the strength of centrifugal self-propagating ceramic lined composite steel pipe is characterized in that it comprises a steel pipe, the inner surface of the steel pipe is provided with grooves, and the inner surface of the steel pipe is lined with Al2O3 ceramic lining formed by self-propagating reaction; The grooves on the inner surface of the steel pipe mentioned above are a combination of spiral grooves and rectangular through grooves. There are not only 4-8 rectangular through grooves distributed on the circumference of the steel pipe, but also along the centerline of the steel pipe, the direction of rotation is left-handed or right-handed. spiral groove; the Al2O3 ceramic lining includes a ceramic layer and a transition layer between the ceramic layer and the inner surface of the steel pipe; 制造方法包括下列步骤: The manufacturing method includes the following steps: ①对钢管内表面进行喷砂除锈、粗化处理,并在钢管内表面开槽; ①Sandblasting, derusting and roughening the inner surface of the steel pipe, and slotting on the inner surface of the steel pipe; ②将Al+ Fe2O3 体系的自蔓延粉料放入钢管中; ② Put the self-propagating powder of Al+ Fe2O3 system into the steel pipe; ③将钢管置于离心机上,开动离心机,点火引发自蔓延反应,得产品。 ③Put the steel pipe on the centrifuge, start the centrifuge, ignite to trigger a self-propagating reaction, and obtain the product.
CN201510039941.0A 2013-07-22 2013-07-22 Strengthen the structure of centrifugal self-propagating ceramic-lined composite steel tube intensity Active CN104565578B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985185A (en) * 2015-06-16 2015-10-21 宋冠弘 Workpiece surface processing method for self-propagating reaction synthetic process
CN107930230A (en) * 2017-12-02 2018-04-20 大禹节水(天津)有限公司 A kind of wear-resisting sandstone centrifugal filter and preparation method thereof
CN111496474A (en) * 2020-04-20 2020-08-07 江苏鑫都管业有限公司 Method for manufacturing self-propagating ceramic composite steel pipe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031694A (en) * 1987-08-10 1989-03-15 兰克西敦技术公司 The production method of combined ceramic products and the goods of production thereof
US20030192613A1 (en) * 2002-04-15 2003-10-16 Harber Industry (Canada) Inc. Pipe and method for resisting erosion, abrasion and corrosion
CN101947714A (en) * 2010-08-19 2011-01-19 杨永利 Integral processing method for refabrication of waste oil tube
CN202165708U (en) * 2011-07-18 2012-03-14 郭顺和 Composite anti-corrosion drain pipe
CN102817030A (en) * 2012-09-06 2012-12-12 南通大学 Method for preparing a metal/ceramic wear-resisting composite lining plate by means of self-propagating high-temperature synthesis
CN102829258A (en) * 2012-09-11 2012-12-19 江阴东大新材料研究院 Method for producing ceramic-lined aluminum alloy pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031694A (en) * 1987-08-10 1989-03-15 兰克西敦技术公司 The production method of combined ceramic products and the goods of production thereof
US20030192613A1 (en) * 2002-04-15 2003-10-16 Harber Industry (Canada) Inc. Pipe and method for resisting erosion, abrasion and corrosion
CN101947714A (en) * 2010-08-19 2011-01-19 杨永利 Integral processing method for refabrication of waste oil tube
CN202165708U (en) * 2011-07-18 2012-03-14 郭顺和 Composite anti-corrosion drain pipe
CN102817030A (en) * 2012-09-06 2012-12-12 南通大学 Method for preparing a metal/ceramic wear-resisting composite lining plate by means of self-propagating high-temperature synthesis
CN102829258A (en) * 2012-09-11 2012-12-19 江阴东大新材料研究院 Method for producing ceramic-lined aluminum alloy pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985185A (en) * 2015-06-16 2015-10-21 宋冠弘 Workpiece surface processing method for self-propagating reaction synthetic process
CN107930230A (en) * 2017-12-02 2018-04-20 大禹节水(天津)有限公司 A kind of wear-resisting sandstone centrifugal filter and preparation method thereof
CN111496474A (en) * 2020-04-20 2020-08-07 江苏鑫都管业有限公司 Method for manufacturing self-propagating ceramic composite steel pipe

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Effective date of registration: 20200102

Address after: No.759, Yongda Road, Gangzha District, Nantong City, Jiangsu Province

Patentee after: NANTONG GAOXIN WEARABLE TECHNOLOGY CO., LTD.

Address before: 226019 Jiangsu city of Nantong province sik Road No. 9

Patentee before: Nantong University