RU1822388C - Method of manufacture of bimetallic pipes - Google Patents
Method of manufacture of bimetallic pipesInfo
- Publication number
- RU1822388C RU1822388C SU4907076A RU1822388C RU 1822388 C RU1822388 C RU 1822388C SU 4907076 A SU4907076 A SU 4907076A RU 1822388 C RU1822388 C RU 1822388C
- Authority
- RU
- Russia
- Prior art keywords
- pipe
- temperature
- diameter
- main section
- pipes
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 230000009466 transformation Effects 0.000 claims abstract 2
- 238000000844 transformation Methods 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Сущность изобретени : способ изготовлени биметаллических труб включает изготовление наружной и внутренней труб, сборку биметаллической заготовки и соединение . Новым в способе вл етс то, что перед сборкой провод т деформирование радиальным распором наружной трубы и радиальным обжатием внутренней трубы при температуре составл ющей 0,2-0,65 от температуры плавлени материалов труб и напр жении равном эксплуатационному, с последующим охлаждением в воде при или в масле, а соединение труб осуществл ют нагревом до температуры ниже температуры начала фазовых превращений материалов труб. Пример. Брали стальную трубу группы прочности Д ГОСТ 63 V75 условным диаметром 89 - наружный диаметр 89 мм, внутрен- ний - 71 мм по основному сечению. Отрезали патрубок длиной 1 м от основного сечени . Брали легкосплавную трубу с наружным диаметром 73 мм и толщиной стенки 8 мм по основному сечению из сплава Д16Т по ГОСТ 23786-79. Также отрезали патрубок длиной 1 м от основного сечени . Проводили деформирование радиальным распором стальной трубы при температуре 450°С и напр жении 30 кг/мм2 с последующими охлаждением в масле и разгрузкой. Проводили деформирование радиальным рбжатием трубы из алюминиевого сплава при 200°С и напр жении 17 кг /мм2 с последующими охлаждением и разгрузкой в воде. Наружный диаметр трубы из алюминиевого сплава доводили до диаметра переходной посадки - плотной по отношению к внутреннему диаметру стальной трубы 71 мм. Общую толщину трубы из алюминиевого ч и 00 ю 1ЧЭ со 00 00 соSUMMARY OF THE INVENTION: A method for manufacturing bimetallic pipes includes manufacturing the outer and inner pipes, assembling a bimetallic billet, and joining. New in the method is that before assembly, deformation is carried out by radial expansion of the outer pipe and radial compression of the inner pipe at a temperature of 0.2-0.65 of the melting temperature of the pipe materials and a voltage equal to the operational, followed by cooling in water at or in oil, and the connection of the pipes is carried out by heating to a temperature below the temperature at which the phase transformations of the pipe materials begin. Example. We took a steel pipe of the strength group D GOST 63 V75 with a nominal diameter of 89 — an outer diameter of 89 mm and an inner diameter of 71 mm over the main section. A branch pipe 1 m long was cut from the main section. They took an alloy pipe with an outer diameter of 73 mm and a wall thickness of 8 mm along the main section of the D16T alloy according to GOST 23786-79. A nozzle 1 m long from the main section was also cut off. The steel pipe was deformed by radial expansion at a temperature of 450 ° C and a voltage of 30 kg / mm2, followed by cooling in oil and unloading. Deformation was carried out by radial compression of an aluminum alloy pipe at 200 ° C and a voltage of 17 kg / mm2, followed by cooling and unloading in water. The outer diameter of the aluminum alloy pipe was adjusted to the diameter of the transition fit - 71 mm thick with respect to the inner diameter of the steel pipe. The total thickness of the pipe made of aluminum h and 00 10 1CHE from 00 00 with
Description
сплава доводили до 3 мм. Затем вводилизаготовки и соединение, отличающийс the alloy was adjusted to 3 mm. Then preparations and a compound different
трубу иэ алюминиевого сплава в стальнуютем. что перед сборкой провод т деформиропри помощи ручного инструмента и негре-вание радиальным распором наружной трували эти две вставленные одна в другуюбы и радиальным обжатием внутреннейpipe of aluminum alloy in steel. that before assembly, deformations are carried out with the help of a hand tool and the internal parts are not warmed by radial thrust, these two are inserted one into the other and the radial compression of the inner
трубы до 200°С, вызыва встречную обрат-5 трубы при температуре, составл ющей 0,2ную ползучесть материалов двух труб. Пол-0,65 от температуры плавлени материаловpipes up to 200 ° C, causing counter-reverse pipe 5 at a temperature of 0.2 creep of the materials of the two pipes. Half-0.65 of the melting point of materials
учали биметаллическую трубу -труб, и напр жении, равном эксплуатационнеразъемное соединение двух труб.ному, с последующим охлаждением в водеWe studied a bimetallic pipe-pipe, and a voltage equal to the operational fixed connection of two pipes. Other, followed by cooling in water
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4907076 RU1822388C (en) | 1990-10-23 | 1990-10-23 | Method of manufacture of bimetallic pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4907076 RU1822388C (en) | 1990-10-23 | 1990-10-23 | Method of manufacture of bimetallic pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU1822388C true RU1822388C (en) | 1993-06-15 |
Family
ID=21558190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4907076 RU1822388C (en) | 1990-10-23 | 1990-10-23 | Method of manufacture of bimetallic pipes |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU1822388C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8283077B1 (en) | 1999-07-31 | 2012-10-09 | The Regents Of The University Of California | Structures and fabrication techniques for solid state electrochemical devices |
| US8343686B2 (en) | 2006-07-28 | 2013-01-01 | The Regents Of The University Of California | Joined concentric tubes |
| US8445159B2 (en) | 2004-11-30 | 2013-05-21 | The Regents Of The University Of California | Sealed joint structure for electrochemical device |
| US8486580B2 (en) | 2008-04-18 | 2013-07-16 | The Regents Of The University Of California | Integrated seal for high-temperature electrochemical device |
-
1990
- 1990-10-23 RU SU4907076 patent/RU1822388C/en active
Non-Patent Citations (1)
| Title |
|---|
| Справочник Повышение качества поверхности и плакирование металлов, под редакцией Кнаушнера А.. М.: Металлурги . 1984, с.262. * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8283077B1 (en) | 1999-07-31 | 2012-10-09 | The Regents Of The University Of California | Structures and fabrication techniques for solid state electrochemical devices |
| US8445159B2 (en) | 2004-11-30 | 2013-05-21 | The Regents Of The University Of California | Sealed joint structure for electrochemical device |
| US8343686B2 (en) | 2006-07-28 | 2013-01-01 | The Regents Of The University Of California | Joined concentric tubes |
| US8486580B2 (en) | 2008-04-18 | 2013-07-16 | The Regents Of The University Of California | Integrated seal for high-temperature electrochemical device |
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