CN1070693A - Tube joiner of iron base marmem and production method thereof - Google Patents
Tube joiner of iron base marmem and production method thereof Download PDFInfo
- Publication number
- CN1070693A CN1070693A CN 92109530 CN92109530A CN1070693A CN 1070693 A CN1070693 A CN 1070693A CN 92109530 CN92109530 CN 92109530 CN 92109530 A CN92109530 A CN 92109530A CN 1070693 A CN1070693 A CN 1070693A
- Authority
- CN
- China
- Prior art keywords
- tube
- pipeline
- processing
- shape memory
- rolled
- 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.)
- Granted
Links
Images
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of marmem pipe road joint, by iron-base marmem through heat, cold working and forming.It is characterized in that the memory function of utilizing shape memory alloy to present the different size diameter under differing temps reaches the purpose of connecting tube.This pipeline connection can connect metal tube, non-metallic pipe, does not need during connection pipeline is carried out special processing, connects only to adopt heating recovery shape to finish.The complete processing of this tube stub is: ingot homogenization annealing, be rolled into the seamless of desired size or be rolled into strip and be welded into slit tube, shape memory processing, cold (temperature) expander, be slit into the tube stub of needed length, only need when connecting various pipeline get final product with heater heats.
Description
The present invention relates to a kind of iron-base marmem pipe joint and process, be suitable for any metal and be connected with nonmetal pipeline by iron-base marmem.Be specially adapted to cated metal tube, metal is connected with non-metallic pipe, only gets final product with well heater during connection, and is the most convenient to the pipe connection of various pressure.
Chemical industry, need in the petrochemical iy produced and will have corrosive gas, liquid is transported to certain production link or these liquid is transported to the user, these gas in course of conveying, liquid is intensive very to Corrosion of Pipeline, for addressing this problem, the scientific worker has taked some required measure to pipeline, as applying one deck protective system at pipe interior, these measures have solved the anticorrosion problem of pipeline itself, but two class problems have appearred, one when pipe connection, the welding of adopting during the metal-metal pipe connection, be threaded, ring flange connects the coating damage of equal butt junction place and causes leakage.Two, metal-nonmetal connection is difficult to adopt welding process, ring flange, is threaded also and can causes leaking to the coating damage of metal tube, and annual Sinopec department leaks with a toll of several hundred million yuan because of pipeline connection place pond, suddenly for this reason waits to take other method of attachment.
The leakage that U.S. F14 air fighter uses the Ti-Ni marmem pipe joint to stop hydraulic efficiency system, but the price of Ti-Ni alloy is high limited industry, agricultural, military and civilian on use, Ti-Ni marmem pipe joint processing simultaneously, complex treatment process.Therefore reduce the tube stub price, simplified processing process is anxious to be solved.
The objective of the invention is to propose a kind of iron-base marmem pipe joint of cheapness and the complete processing of simplification, this tube stub is through smelting thermo forming, after the cold-drawn reaming, use again, more than certain temperature, remember original shape, and do not damage connected pipe when reaching connecting tube fast, metal and nonmetal pipeline spare ease of connection is carried out, do not need connected pipe processing, handle, only need a heating unit can finish this work, not only low pressure pipeline can be connected, and pressure piping can be connected.
The cheap marmem pipe joint composition that the present invention proposes is: the surplus iron of (1) 25～40wt%Mn 2～8wt%Si 0.02～0.1wt%C, 0.01～3wt%W, (2) 10～40wt%Mn, 2～8wt%Si, 4～12wt%Cr, 5～20wt%Ni, the surplus Fe of 0.01～3wt%W, 0.02～0.1wt%C.Through smelting, rolling, cold expander, be heated to the Af point and then go up connecting tube.Institute's connecting tube size can be complementary with tube stub, and tube stub girth recovery rate is 4～6%.
Shape memory alloy used in the present invention is smelted after 1000 ℃～1200 ℃ soaking 12 hours through one of electric furnace, open hearth, converter, vacuum induction furnace, be rolled into rod or plate at 800～1180 ℃, rod is rolled into the seamless tube of certain specification through seamless-tube rolling mill, behind sizing under 600～800 ℃ of states, cool off fast or reheat 600～800 ℃ of shrends, hot-rolled tube cuts into the length of requirement after cold (temperature) hole enlargement of 5～10%.Finish pipe behind the also available hot rolling plate cold stretching and be welded into tube stub.The tube stub of making is positioned on the connected tube joint, shape, fastening pipeline simultaneously when making tube stub memory hot-work with electrical heating method.Tube stub as shown in Figure 1,1 is the tube stub shape before recovering, 2 are the shape after recovering.
Employed electric heater is made up of two and half tubular heating units.As shown in Figure 2, among Fig. 21 be resistance wire, 2 for special-shaped refractory materials, 3 for support shell, 4 for hinge, 5 for handle.
Claims (5)
1, a kind of iron-base marmem pipe joint, its composition is: the surplus Fe of (1) 25～40wt%Mn 2～8wt%Si 0.02～0.1wt%C, 0.01～3wt%W, the shape memory alloy of (2) 10～40wt%Mn, 2～8wt%Si, 4～12wt%Cr, 5～20wt%Ni, the surplus Fe of 0.01～3wt%W, 0.02～0.1wt%C or other composition.
2, the iron-base marmem pipe joint according to the described composition of claim 1 can be processed into all lengths, diameter on request.
3, tube stub complete processing according to claim 2 is: ingot casting is through 1000～1200 ℃ of homogenizing annealings, and 800～1180 ℃ are rolled into pipe, and shape memory processing, cold (temperature) expander are to requiring diameter, cut into to require length.
Need not carry out any processing to pipeline during 4, according to the described tube stub connecting tube that processes of claim 3, need only use the electric heater can fastening pipeline in pipeline connection place butt junction heating.
5, electric heater according to claim 4 is to be formed by the resistance wire coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109530 CN1026502C (en) | 1992-08-20 | 1992-08-20 | Tube joiner of iron base marmem and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109530 CN1026502C (en) | 1992-08-20 | 1992-08-20 | Tube joiner of iron base marmem and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1070693A true CN1070693A (en) | 1993-04-07 |
| CN1026502C CN1026502C (en) | 1994-11-09 |
Family
ID=4944197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92109530 Expired - Fee Related CN1026502C (en) | 1992-08-20 | 1992-08-20 | Tube joiner of iron base marmem and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026502C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999035298A1 (en) * | 1997-12-31 | 1999-07-15 | Shape Memory Materials Engineering Research Center, Tianjin University | Pipe joint made of shape memory stainless steel |
| CN101658998B (en) * | 2009-09-29 | 2012-01-25 | 湖南汉升机器制造有限公司 | Assembly method adopting interference fit rigid connection |
| CN102357622A (en) * | 2011-07-08 | 2012-02-22 | 宝鸡三线有色金属制造有限公司 | Technology for preparing titanium-nickel-niobium memory alloy pipes or rings |
| CN106439293B (en) * | 2016-09-28 | 2018-12-07 | 有研亿金新材料有限公司 | A kind of external-expanding type interface unit and application |
-
1992
- 1992-08-20 CN CN 92109530 patent/CN1026502C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999035298A1 (en) * | 1997-12-31 | 1999-07-15 | Shape Memory Materials Engineering Research Center, Tianjin University | Pipe joint made of shape memory stainless steel |
| CN101658998B (en) * | 2009-09-29 | 2012-01-25 | 湖南汉升机器制造有限公司 | Assembly method adopting interference fit rigid connection |
| CN102357622A (en) * | 2011-07-08 | 2012-02-22 | 宝鸡三线有色金属制造有限公司 | Technology for preparing titanium-nickel-niobium memory alloy pipes or rings |
| CN102357622B (en) * | 2011-07-08 | 2014-04-16 | 宝鸡三线有色金属制造有限公司 | Technology for preparing titanium-nickel-niobium memory alloy rings |
| CN106439293B (en) * | 2016-09-28 | 2018-12-07 | 有研亿金新材料有限公司 | A kind of external-expanding type interface unit and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1026502C (en) | 1994-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107052076B (en) | A kind of method of collet plug hot rolling heavy caliber titanium or titanium alloy thin-wall seamless pipe | |
| CN106493187A (en) | A kind of heavy caliber thick wall titanium and its low-cost manufacture method of alloy seamless tubing | |
| CN105420651A (en) | Manufacturing method for large-diameter thick-wall seamless zirconium pipe | |
| CN103599957B (en) | A kind of extrusion process of hydrocracking stove austenitic stainless steel seamless pipe | |
| CN110170543A (en) | A kind of titanium alloy seamless pipe short route processing method | |
| CN103510001B (en) | A kind of double coiled welded tube cold-rolled steel sheet and production method thereof | |
| CN1026502C (en) | Tube joiner of iron base marmem and its production method | |
| JPS61210158A (en) | Superplastic two-phase stainless steel and hot working method thereof | |
| CN105992832A (en) | Copper alloy material and copper alloy pipe | |
| CN103121034B (en) | Super duplex stainless steel ingot hot working cogging method | |
| EP0916420B1 (en) | Method of fabricating metal pipe from weldable and ductile metals | |
| CN1189257C (en) | Method for making efficient heat conducting tube | |
| US3404449A (en) | Heavy walled pipe manufacture | |
| CA2403830A1 (en) | High-workability steel pipe and method of producing same | |
| KR20230058689A (en) | Rolling method of wide Ni-Fe-Cr heat-resistant alloy plate | |
| CN102321853A (en) | Flyer and very low temperature system thereof are with stainless steel tube and preparation method | |
| JPH01123026A (en) | Manufacture of seamless two-phase stainless steel tube | |
| JPH11172336A (en) | Production of seamless steel tube | |
| JP3879207B2 (en) | Manufacturing method of welded steel pipe | |
| JPS5935826A (en) | Manufacture of small aperture and long-sized double pipe | |
| CN209144215U (en) | A kind of burning optimization on line device based on hot continuous rolling producing line | |
| JP3223264B2 (en) | Manufacturing method of coiled steel pipe with excellent cold workability | |
| JP3651198B2 (en) | Drawing method of steel pipe | |
| JPS63134630A (en) | Manufacture of seamless high chromium steel tube | |
| JPH01132717A (en) | Production of high-strength austenitic stainless seamless steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |