SU912314A1 - Tube production method - Google Patents
Tube production method Download PDFInfo
- Publication number
- SU912314A1 SU912314A1 SU802956043A SU2956043A SU912314A1 SU 912314 A1 SU912314 A1 SU 912314A1 SU 802956043 A SU802956043 A SU 802956043A SU 2956043 A SU2956043 A SU 2956043A SU 912314 A1 SU912314 A1 SU 912314A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- workpiece
- wall thickness
- extrusion
- hydro
- length
- Prior art date
Links
Landscapes
- Control Of Metal Rolling (AREA)
Description
II
Изобретение относитс к обработке металлов давлением, а точнее к изготовлению труб из высоколегированных сталей и сплавов.The invention relates to the processing of metals by pressure, and more specifically to the manufacture of pipes from high alloy steels and alloys.
Известен спосоь, включающий гидроэкструзию заготовки на подвижной конической оправке и последующее ее волочение flj.Known methods, including hydrostatic extrusion of the workpiece on a movable conical mandrel and its subsequent drawing flj.
Недостатком этого способа вл етс низка точность труб из высоколегированных сталей и сплавов, обусловленна лишь чгстичным устранением волочени продольной разностенности трубы после гидроэкструзии на конической оправке.The disadvantage of this method is the low accuracy of pipes from high-alloy steels and alloys, which is caused only by the critical elimination of the drawing of the longitudinal spacing of the pipe after hydrostatic extrusion on a conical mandrel.
Цель изобретени - повышение качества труб.The purpose of the invention is to improve the quality of pipes.
Поставленна цель достигаетс тем, что согласно способу изготовлени труб, включающему гидроэкструзию заготовки на подвижной конической оправке и последующую ее холодную деформацию , последнюю производ т с измен ющейс по длине трубы степенью деформации в соответствии с соотношениемThis goal is achieved by the fact that according to the method of manufacturing pipes, including hydroextrusion of the workpiece on a movable conical mandrel and its subsequent cold deformation, the latter is carried out with a degree of deformation that varies along the length of the pipe in accordance with the ratio
.«.„ч 4 - .i . ". H 4 - .i
е г.- Ьо (i3n-)Soe g .- bo (i3n-) So
где () - степень деформации;where () is the degree of deformation;
ОС - координаты длины заготовки после гидроэкструзии, м;OS - coordinates of the length of the workpiece after hydro extrusion, m;
ST - толщина стенки готовой трубы, м;ST - wall thickness of the finished pipe, m;
ho - толщина стенки переднего конца заготовки после гидроэкстру31 и;ho is the wall thickness of the front end of the workpiece after hydro-extrusion and;
е. - основание натурального логарифма;is the base of the natural logarithm;
- угол образующей конуса оправки, рад.; - the angle forming the cone mandrel, glad .;
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802956043A SU912314A1 (en) | 1980-07-11 | 1980-07-11 | Tube production method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802956043A SU912314A1 (en) | 1980-07-11 | 1980-07-11 | Tube production method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU912314A1 true SU912314A1 (en) | 1982-03-15 |
Family
ID=20908131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802956043A SU912314A1 (en) | 1980-07-11 | 1980-07-11 | Tube production method |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU912314A1 (en) |
-
1980
- 1980-07-11 SU SU802956043A patent/SU912314A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1124540A (en) | Metal clad plastics piping | |
ES418268A1 (en) | Process and installation for producing metal tubes without welding | |
SU912314A1 (en) | Tube production method | |
ES2000380A6 (en) | Method of turning tubular work pieces and apparatus employing the method. | |
EP0148514B1 (en) | Method and apparatus for cold drawing and imparting curvature to metal tubes | |
SU822960A1 (en) | Method of expanding shaped rings | |
KR830005920A (en) | Method and apparatus for manufacturing pipe on pipe pressure bench device | |
SU902975A1 (en) | Method of producing stepped hollow forgings | |
SU616009A1 (en) | Pusher for tube reduction | |
SU893280A1 (en) | Tube production method | |
SU880594A1 (en) | Method of heat-friction forming | |
US1888607A (en) | Method of making seamless tubes | |
SU602283A1 (en) | Method of making thin-wall sleeve-like articles | |
SU863107A1 (en) | Billet for rolling tubes | |
SU1731330A1 (en) | Tube drawing method | |
SU1488089A1 (en) | Method of producing external thread | |
US3942352A (en) | Method of making seamless metal tubes | |
SU1530277A1 (en) | Method of tube cold rolling | |
SU1719163A2 (en) | Method for production of ring blanks from pipes | |
SU1072977A1 (en) | Method of producing hollow forgings with taper flare | |
RU2025179C1 (en) | Method for manufacturing workpieces of the type of bodies of revolution from basic blanks | |
US2050236A (en) | Apparatus for forming tubular blanks | |
SU1274832A1 (en) | Method of producing internal thread | |
SU1547932A1 (en) | Method of producing tubes with thickened ends | |
SU897373A1 (en) | Method of producing ring forgings |