CN108044230A - A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe - Google Patents

A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe Download PDF

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Publication number
CN108044230A
CN108044230A CN201711314347.3A CN201711314347A CN108044230A CN 108044230 A CN108044230 A CN 108044230A CN 201711314347 A CN201711314347 A CN 201711314347A CN 108044230 A CN108044230 A CN 108044230A
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CN
China
Prior art keywords
stainless steel
steel tube
carbon steel
steel pipe
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711314347.3A
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Chinese (zh)
Inventor
何宗霖
双远华
楚志兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyuan University of Science and Technology
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Taiyuan University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taiyuan University of Science and Technology filed Critical Taiyuan University of Science and Technology
Priority to CN201711314347.3A priority Critical patent/CN108044230A/en
Publication of CN108044230A publication Critical patent/CN108044230A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K23/00Alumino-thermic welding

Abstract

A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe, belongs to multiple tube manufacturing technology field, is characterized in that implementation steps are:<1>It is that the stainless steel tube that d carbon steel pipes are D with outer diameter carries out compound, D=d to choose internal diameter.<2>Aluminium powder and brown iron oxide are pressed 1:3 mass ratioes are uniformly mixed, and water is added to stir into purees.<3>Above-mentioned purees is equably applied on the outer surface of stainless steel tube and dried.<4>Carbon steel pipe is heated into expansion rear enclosure mounted in the outside of stainless steel tube, it is put into heating furnace and is heated to 800 DEG C ~ 1000 DEG C, thermit reaction occurs on the faying face of carbon steel pipe and stainless steel tube, generate amount of heat, temperature is up to 280 DEG C, at this point, the metallurgical compound technology for completing stainless steel tube and carbon steel pipe is molded.Advantage:1. effectively solve the problems, such as that carbon steel pipe is metallurgical compound with stainless steel tube.2. the method simple possible, improves production efficiency.

Description

A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe
Technical field
The invention belongs to composite steel tubes to manufacture technical field, and in particular to a kind of stainless steel tube and the metallurgical compound system of carbon steel pipe The method of base.
Background technology
For the fluid line used under deep-etching, high abrasion, high workload pressure environment, generally use high-quality it is stainless The seamless steel pipe of steel or high alloy content, this kind of tubing are common seamless steel pipes due to largely adding alloying element, price Several times or tens times.For many years, tubing user and manufacturer have been working hard seek through the compound of different metal, so as to obtain It is a kind of to meet harsh use environment cheap and good-quality high-performance composite pipe again.
Composite bimetal pipe can realize the mutual supplement with each other's advantages of material to greatest extent, save alloying element, reduce engineering cost, On the basis of former base pipe properties are ensured, corrosion resistance, the wearability of pipeline are improved, extends the service life of pipeline, is The substitute products of pure stainless steel tube, copper pipe or other corrosion resistance compo pipes.
Domestic composite bimetal pipe research and application are later, although domestic existing part oil gas field uses, apply skill Art is not perfect, in combination process, efficiently still has larger gap compared with external in terms of production and detection technique.It is multiple in foreign countries Close pipe be that developed recently is very fast, main process include hot rolling compounding method, hot extrusion composite algorithm, casting complex method, Explosive welding complex method, combined bimetal composite tube production method, laser cladding method etc..But technique is all relatively numerous Trivial, cost is also bigger.
The content of the invention
The object of the present invention is to provide a kind of methods of stainless steel tube and the metallurgical compound base of carbon steel pipe, can efficiently solve Carbon steel pipe and the metallurgical compound problem of stainless steel tube.
The present invention is achieved in that it is characterized in that implementation steps are as follows:
1. it is that the stainless steel tube that d carbon steel pipes are D with outer diameter carries out compound, the d=D of metallurgy to choose internal diameter.It is removed in the face of being incorporated into Rust, oil removing are simultaneously polished.
2. by aluminium powder and brown iron oxide according to 1:3 mass ratio is uniformly mixed, and water is added to stir into pureed.
3. the purees that above-mentioned aluminium powder and brown iron oxide are mixed into equably is applied on the outer surface of stainless steel tube, apply Layer thickness is 0.1 ~ 0.5mm, is determined according to steel pipe faying face size.
4. carbon steel pipe is heated into expansion rear enclosure mounted in the outside of stainless steel tube.It is put into heating furnace and is heated to 800 DEG C ~ 1000 DEG C, at this time according to 2Al+Fe on composite pipe blank faying face2O3=2Fe+Al2O3Generation thermit reaction generates substantial amounts of heat, and temperature can Up to 2800 DEG C or so.Under this superhigh temperature, stainless steel tube and carbon steel pipe occur metallurgy and merges, completion stainless steel tube and carbon steel pipe Metallurgical compound technology is molded.
5. it comes out of the stove, be air-cooled to room temperature.
The positive effect of the present invention is:
1. the present invention provides a kind of blank-making methods of composite pipe blank, it can effectively solve carbon steel and stainless steel is metallurgical compound Problem.
2. the configuration of the present invention is simple, labor strength is low, easy to use, improves production efficiency.
Description of the drawings
Fig. 1 is schematic diagram of the present invention;In figure:1---- carbon steel pipes, 2---- dope layers, 3---- stainless steel tubes.
Specific embodiment
As shown in Figure 1:1. by outer diameter D=50mm, the outer surface of the stainless steel tube 3 of thickness h=1mm and internal diameter d=50mm are thick The inner surface for spending the straight carbon steel pipe of h=2mm is derusted, oil removing and polished smooth.2. aluminium powder and brown iron oxide are taken according to mass ratio 1: 3 mixing plus water stir evenly, and purees is made.Al powder purities are 99%, 400 mesh of granularity, Fe2O3Purity is 99%, 400 mesh of granularity.③ With brush by the above-mentioned uniform scrubbing brush of pureed mixture on the outer surface of stainless steel tube 3, the thickness of coating selects 0.5mm.It will coat The stainless steel tube of coating is heated to coated and dried state.Then stainless steel tube is cooled to room temperature state.4. straight carbon steel pipe 1 is led to It crosses heating furnace and is heated to 400 DEG C or so, it is rapid to take out and be sleeved on 3 outside of stainless steel tube immediately.It is air-cooled to again after assembling often Temperature state realizes the interference fit of composite pipe blank.Ready-made composite pipe blank test specimen is put into heating furnace, by temperature adjust to 800 DEG C, coating will be according to 2Al+Fe2O3=2Fe+Al2O3Generation thermit reaction, generates substantial amounts of heat, and temperature reaches 2800 DEG C of foots To melt the faying face of straight carbon steel and stainless steel, two kinds of metals is made to weld together with molten condition, realize metallurgical fusion. 800 degrees Celsius of heat-retaining condition 5 minutes or so is kept in heating furnace, until the thermit reaction of composite bed has fully thoroughly been reacted Entirely so that the metal of two kinds of molten states fully fuses.5. then opening heating furnace, the composite pipe blank prepared is taken out, is air-cooled to Normal temperature state.

Claims (1)

1. a kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe, it is characterised in that implementation steps are as follows:
<1>It is d carbon steel pipes to choose internal diameter(1)With the stainless steel tube that outer diameter is D(3)Carry out compound, the d=D of metallurgy;It is incorporated into face It derusted, oil removing and polished;
<2>By aluminium powder and brown iron oxide according to 1:3 mass ratio is uniformly mixed, and is added water, is stirred into pureed;
<3>The aluminium powder for the pureed being mixed into and brown iron oxide are equably applied to stainless steel tube(1)Outer surface on, then will It after its heating, drying, is cooled to room temperature, coating layer thickness is 0.1 ~ 0.5mm, is determined according to steel pipe faying face diameter;
<4>By carbon steel pipe(1)Heating expansion rear enclosure is mounted in stainless steel tube(3)Outside, be put into heating furnace be heated to 800 DEG C ~ 1000 DEG C, at this time according to 2Al+Fe on composite pipe blank faying face2O3=2Fe+Al2O3Generation thermit reaction generates substantial amounts of heat, temperature Degree is up to 2800 DEG C, the stainless steel tube under this superhigh temperature(3)With carbon steel pipe(1)The metallurgical fusion of generation, completes stainless steel tube(3)With Carbon steel pipe(1)Metallurgical compound technology shaping;
<5>Come out of the stove, be air-cooled to room temperature.
CN201711314347.3A 2017-12-12 2017-12-12 A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe Pending CN108044230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711314347.3A CN108044230A (en) 2017-12-12 2017-12-12 A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711314347.3A CN108044230A (en) 2017-12-12 2017-12-12 A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe

Publications (1)

Publication Number Publication Date
CN108044230A true CN108044230A (en) 2018-05-18

Family

ID=62123634

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711314347.3A Pending CN108044230A (en) 2017-12-12 2017-12-12 A kind of method of stainless steel tube and the metallurgical compound base of carbon steel pipe

Country Status (1)

Country Link
CN (1) CN108044230A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130390A (en) * 1979-03-29 1980-10-09 Sumitomo Metal Ind Ltd Production of clad steel plate
JP2000254789A (en) * 1999-03-08 2000-09-19 Kubota Corp Method for forming outer circumferential projecting portion of tube
CN1837137A (en) * 2006-04-18 2006-09-27 南京金陶耐磨管道有限公司 Method for preparing thin-wall composite steel pipe with ceramic lining
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
CN104266003A (en) * 2014-09-11 2015-01-07 邯郸新兴特种管材有限公司 Bimetallic composite steel pipe and production method thereof
CN105135071A (en) * 2015-08-25 2015-12-09 江苏众信绿色管业科技有限公司 Method for manufacturing double-metal composite pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130390A (en) * 1979-03-29 1980-10-09 Sumitomo Metal Ind Ltd Production of clad steel plate
JP2000254789A (en) * 1999-03-08 2000-09-19 Kubota Corp Method for forming outer circumferential projecting portion of tube
CN1837137A (en) * 2006-04-18 2006-09-27 南京金陶耐磨管道有限公司 Method for preparing thin-wall composite steel pipe with ceramic lining
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
CN104266003A (en) * 2014-09-11 2015-01-07 邯郸新兴特种管材有限公司 Bimetallic composite steel pipe and production method thereof
CN105135071A (en) * 2015-08-25 2015-12-09 江苏众信绿色管业科技有限公司 Method for manufacturing double-metal composite pipe

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Application publication date: 20180518