CS233298B1 - Method of hydrodynamic forward extrusion and equipment for its implementation - Google Patents
Method of hydrodynamic forward extrusion and equipment for its implementation Download PDFInfo
- Publication number
- CS233298B1 CS233298B1 CS1009483A CS1009483A CS233298B1 CS 233298 B1 CS233298 B1 CS 233298B1 CS 1009483 A CS1009483 A CS 1009483A CS 1009483 A CS1009483 A CS 1009483A CS 233298 B1 CS233298 B1 CS 233298B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- hydrodynamic
- base plate
- forward extrusion
- support
- pressurized liquid
- Prior art date
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Vynález sa týká sposobu hydrodynamického dopredného pretlačovania, ktorého podstatou je, že na polotovar, plný alebo dutý, uložený na trní a ustavený do redukčnej Časti nástroja v prostředí tlakovej kvapaliny alebo čistoplastickej hmoty sa pSsobí zdrůženým mechanickým rázom cez vysokotlakové vysokorýchlostné médium a cez čelnú oporu pri zvýšených rýchlostiach rázu vačších ako 0,3 ms“l, po predchádzajúcom nastavení zvolenej výšky hydraulického stipca a po nastavení čelnej opory. Predmetom vynálezu je aj zariadenie upravené pre prevedenie daného spdsobu, ako je znázorněné na obr. 1.The invention relates to a method of hydrodynamic forward extrusion, the essence of which is that a semi-finished product, solid or hollow, placed on a mandrel and placed in the reducing part of the tool in an environment of pressurized liquid or pure plastic mass is subjected to a delayed mechanical shock through a high-pressure, high-speed medium and through the frontal support at increased shock speeds greater than 0.3 ms"l, after the previous setting of the selected the height of the hydraulic column and after setting the frontal support.
Description
Vynález sa týká sposobu hydrodynamického dopredného pretlačovania a zariadenie na jeho prevedenie·BACKGROUND OF THE INVENTION 1. Field of the Invention
Zo súčasného stavu techniky je známe, že dopředně preplačovanie za studená lisováním, hydraulicky alebo hydromachanicky sa vyznačuje nízkou stabilitou. Vysokorýchlostné dopředně pretlačovanie zasa stratou mazacíeho filmu.It is known from the prior art that forward cold extrusion, hydraulically or hydromachanically, is characterized by low stability. High-speed forward extrusion, in turn, results in the loss of the lubricating film.
Doterajší a súčasný stav techniky umožňuje iba oddělené tlakové alebo rýchlostné posobenie pri doprednom přetlačovaní so zvyškom nepretlačeného polotovaru v prietlačnici.The prior art allows only a separate compression or speed biasing in the forward extrusion with the remainder of the unstretched blank in the transfer die.
Uvedené nedostatky odstraňuje sposob hydradynamického dopredného pretlačovania, ktoré účinné rieši problém stability a mazania v pretvárnom procese a to synchronným posobením tlakov a rýchlosti tvárnenia zo šírenia tlakových vln v kvapalinách alebo čistoplastických hmotách tak, že na prietlačok, plný alebo dutý, uložený na třni a ustavený nad redukciou prietlaónice v prostředí tlakovej kvapaliny alebo čistoplastickej hmoty sa posobí cez čelnú oporu mechanickým rázom pri zvýšených rýchlostiach rázu vatších ako 0,* ms“\ s predchádzajúci’ nastavením zvolenej výšky hydraulického stlpca a nastavení čelnej opory pre dopředně oretlačenie polotovaru bez zvyšku v prietlačnici.These drawbacks are eliminated by the hydradynamic pre-extrusion method, which effectively solves the stability and lubrication problem in the deformation process by synchronously adjusting the pressures and forming speeds from the propagation of pressure waves in liquids or pure plastics by placing them on the overpressure, solid or hollow, above the die reduction in the pressurized liquid or pure plastic environment, it is pushed through the front support by mechanical shock at increased impact velocities greater than 0.1 msec prior to adjusting the selected height of the hydraulic column and setting the front support to advance the blank without residue in the die.
Predmetom vynálezu je aj zariadenie na prevedenie sposobu ktorého podstata spočívá v tom, že yo vnútornom priestore armovaného vinutého kontajneru a na základovej doske sú uspořiadané jednak redukčná čásť prietlaónice, čelná radiálně zafixovaná opora, ako aj prietlačník, ktoré sú spolu s polotovarom podoprene umístěné v prostředí tlakovej kvapaliny alebo čistoplastickej hmoty.The invention also relates to a device for carrying out the method, characterized in that on the inner space of the reinforced coiled container and on the base plate there are arranged a reduction part of the die, a front radially fixed support and a die which are supported in the environment. pressure fluid or pure plastic.
Výhodou sposoba podlá vynálezu je,· že združený mechanický ráz uskutečněný cez vysokotlakové, vysokorýchlostné médium a cez čelnú oporu posobí do procesu dopredného protlačovania rýchlym všestranným tlakom, čo pri čelnej opore zvyšuje stabilitu procesu pretlačovania pri udržaní mazaoieho filmu v redukcii ako aj pretlačenia polotovaru bezo zvyšku.An advantage of the method according to the invention is that the combined mechanical impact through the high-pressure, high-speed medium and through the front support sits in the forward extrusion process with rapid all-round pressure, which increases the stability of the extrusion process in front support while keeping the lubrication film in reduction as well as .
Na pripojenom výkrese je schématicky v řeze znázorněné prevedenie Dodla vynálezu s vyznačením konštrukčných zmien opfoti základnému zariadeniu.The accompanying drawing shows a schematic sectional view of an embodiment of the invention according to the invention, showing design changes in relation to the basic device.
Zariadenie pozostáva z razníka 1 umiestneného v ose armovaného vinutého kontajneru 2, ktorý je z vnútra opatřeny tesne233 298 ním 3^ a zospodu uložený a pevne spojený so základovou doskou 4. Ha základovej doske 4 á nad touto vo vnútornom priestore armovaného vinutého konta jnera 2 sú usporiadané jednak redukčná časť prietlač nice 5. ako aj radiálně zafixovaná čelná opora _6 a prietlačník Ί.* ktorý je opatřený taktiež těsněním 3. Vnútro armovaného vinutého konta jneru 2 je naplněné tlakovou kvapalinou alebo čistoplastickou hmotou Okrem opatrenia pre redukciu tlaku poistkou 9 je zariadenie doplněné aj bočným otvorom 10 v základovej doske 4 pre vyberanie výliskov·The device consists of a punch 1 disposed on the axis of the reinforced coiled container 2, which is provided with a tightly tight inside of the reinforced spiral container 2 and is mounted underneath and firmly connected to the base plate 4. For example, the pressure reducing part 5 and the radially fixed front support 6 and the ejector 4, which is also provided with a seal 3, are provided. The inside of the reinforced coil billet 2 is filled with a pressurized liquid or pure plastic material. also through the side opening 10 in the base plate 4 for removing the moldings.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS1009483A CS233298B1 (en) | 1983-12-29 | 1983-12-29 | Method of hydrodynamic forward extrusion and equipment for its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS1009483A CS233298B1 (en) | 1983-12-29 | 1983-12-29 | Method of hydrodynamic forward extrusion and equipment for its implementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS233298B1 true CS233298B1 (en) | 1985-02-14 |
Family
ID=5447927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS1009483A CS233298B1 (en) | 1983-12-29 | 1983-12-29 | Method of hydrodynamic forward extrusion and equipment for its implementation |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS233298B1 (en) |
-
1983
- 1983-12-29 CS CS1009483A patent/CS233298B1/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ahmed et al. | Estimation of machine parameters for hydraulic bulge forming of tubular components | |
| US3036373A (en) | Metal forming | |
| JPH0777650B2 (en) | Cup holder for use in a can making machine | |
| DK154808B (en) | METHOD AND DEVICE FOR DEVICING OF ALUMINUM CONTAINERS | |
| CN2603716Y (en) | Die forging forming mould of metal extrusion pressing | |
| CN110052525A (en) | A kind of the one-mold multiple-member monolithic molding mold and its method of spatial axis thin-wall tube | |
| CS233298B1 (en) | Method of hydrodynamic forward extrusion and equipment for its implementation | |
| ES8505273A1 (en) | Method for preparing tubular chills for continuous steel casting plants | |
| US6698267B1 (en) | Method and impact machine for forming a body | |
| CN109013908A (en) | A kind of high intensity can reflectal preparation molding forging apparatus | |
| US3844155A (en) | Method of making a slug having controlled grain direction | |
| SU1447508A1 (en) | Method of producing articles by radial extrusion | |
| SU1755992A1 (en) | Apparatus for hudraulically shaping hollow articles with branches | |
| SU1291225A1 (en) | Arrangement for hydraulic pressing of tubular billets and articles of sleeve type | |
| JPS57177845A (en) | Press-forming method for bevel gear and its die | |
| SU1687356A1 (en) | Method of manufacture of hollow cylindrical articles | |
| SU1181769A1 (en) | Die for extrusion stamping | |
| US3528269A (en) | Method of extrusion with liquidpressure and means for carrying out the method | |
| SU1433578A1 (en) | Method of hydromechanical forming of tubular articles with variable cross-section | |
| SU1306617A1 (en) | Apparatus for hydraulic moulding of hollow parts with taps | |
| GB1341141A (en) | Production of hollow metal bodies closed at one end | |
| SU1127673A1 (en) | Device for expansion of round billets | |
| SU1224037A1 (en) | Apparatus for making thin-wall hollow articles with taps | |
| Amino et al. | Application of hydraulic counterpressure fluid forming into car body sheet metal forming | |
| SU845937A1 (en) | Method of producing hollow parts with pipe branches |