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Hydraulic cold extrusion press United States Patent 4831861 Abstract A cold-extrusion press wherein a platen 4 carries a die part 31 and is capable of being moved towards and away from a stationary table 2 by piston/cylinder devices 5 6 working piston/cylinder device 7 acts upon extrusion mandrel 11 to exert a deforming...

Feb 11 2017 0183 32 You can also get an adjustable flow control valve that will control the speed You can probably modify the electric log splitter without too much trouble but you ll probably blow your budget I bought three American made replacement hydraulic hoses...

Experiments will be performed on a one-stage hydraulic press In order to initiate lateral extrusion material flow a closing device will be used The synchronization of the upper and lower closing device is achieved by adjusting the closing force of both acting against each other In 7 it is shown that the synchronization has significant...

Hydraulic grips have an eccentric piston shape with a long piston stroke achieving a deep clamping surface position and a large opening width The alignment of the jaws specimen grips and piston facilitates gripping of short specimens as well Defined force application ensures optimum gripping of sensitive materials...

In order in an application instrument for an aneurysm clip comprising two clamping jaws which are movable relative to one another and between them accommodate the aneurysm clip as well as actuating elements for moving the clamping jaws towards and away from one another and thereby for opening and closing the aneurysm clip to assist the surgeon with the controlled closing movement of the...

As the leader in hydraulic rescue tools LUKAS offers a range of hydraulic cutters specially designed for all kind of dismantling work All of the tools are specifically designed as scrap and demolition cutters for the recycling industry suitable for rough usage and high frequency operation...

The control unit controls the closing and opening procedure separately for the top and bottom specimen grips Furthermore the closing procedure is divided into a closing phase and gripping phase when a a universal hydraulic power pack is used In the closing phase the specimen is initially held on the upper end for safety reasons...

Jaws useful lenght Specifications 1270 Kg 13/16 ton 635 mm 670 mm 260/404 mm 55 ton 105 ton 180 ton 20/30 1/min 120 bar 110/160 1/min 350 hydraulic Jaws width lower/upper C Closing force at tip F3 Closing force F2 Closing force at blades F 1 Rotation oil flow min/max Rotation pressure Opening/closing oil flow Opening/closing pressure...

The Jaws of Life is actually a brand of tools that is trademarked by the Hurst Jaws of Life company but the name is often used when talking about other brands of rescue systems The term Jaws of Life refers to several types of piston-rod hydraulic tools known as cutters spreaders and rams which are used to pry open vehicles involved in accidents when a victim may be trapped...

Max Jaws opening A Jaws useful lenght Specifications 1990 Kg 18/26 ton 786 mm 840 mm 290/454 mm 80 ton 135ton 234 ton 20/30 120 bar 180/230 1/min 350 hydraulic Jaws width lower/upper C Closing force at tip F3 Closing force F2 Closing force at blades Fl Rotation oil flow min/max Rotation pressure Opening/closing oil flow Opening...

Pressure-Flow Control 14 Power Units 16 Leak-free Systems 17 Fieldbus Technology 18 Try it for Yourself Rexroth Simulation Technology Increasing demands for high dyna-mic response effi ciency energy consumption and low noise emis-sion from hydraulic systems in plastics processing machinery re-quire swift and accurate develop-...

A short closing plug seals off the container on the main ram side and on the other side the extrusion die is supported at the end of a fixed hollow stem While the main ram is moving forwards and pushing the container against the stem this is going inwards into the container and the billet is then extruded through the die and the hollow stem...

US2696042A US283311A US28331152A US2696042A US 2696042 A US2696042 A US 2696042A US 283311 A US283311 A US 283311A US 28331152 A US28331152 A US 28331152A US 2696042 A US2696042 A US 2696042A Authority US United States Prior art keywords cylinder support cutting fluid jaws Prior art date 1952-04-21 Legal status The legal status is an assumption and is not a legal...

The hydraulic system for stretch forming equipment has two main parts the power unit and the ram Motor speed pressure flow and fluid type are important power unit parameters Force stroke open/close rate and pressing rate describe the ram Hydraulic system specifications also include minimum and maximum tension cylinder pull...

All hydraulic rock cutters are FEM optimized to meet the toughest requirements The stable cutter body features two powerful hydraulic cylinders including highspeed valves for minimum cycle tim The modular design allows each unit to be equipped with different jaws universal jaws pulverizing jaws and steel cutting jaws depending on the...

Extrusion Plastometers / Melt Flow Index Testers Furthermore the closing procedure is divided into a closing phase and gripping phase when a a universal hydraulic power pack is used In the closing phase the specimen is initially held on the upper end for safety reasons The jaws can be be changed quickly and easily without tools if...

A computer responds to the strain gauges and controls the flow of hydraulic fluid into and out of closing and opening mechanisms The independent nature of the hydraulic jaws 106 allows for adjustments shown by the arrows of FIG 4 The pump 1206 drives fluid along a main hydraulic flow line 1202...

Jul 23 2017 0183 32 The conversion of hydraulic pressure and flow into torque or a twisting force and then rotation is the function of a hydraulic motor which is a mechanical actuator The use of these is quite adaptable Along with hydraulic cylinders and hydraulic pumps hydraulic motors can be united in a hydraulic drive system...

Without an additional anti-extrusion device the elastoplastic modular backup would experience plastic flow into the gap at 100 000 psi A softer lower tear-strength urethane back-up element would be nibbled or cut by the metal backup ring especially where the metal ring is split...

US3266776A US388613A US38861364A US3266776A US 3266776 A US3266776 A US 3266776A US 388613 A US388613 A US 388613A US 38861364 A US38861364 A US 38861364A US 3266776 A US3266776 A US 3266776A Authority US United States Prior art keywords jaw rod jack jaws opening Prior art date 1964-02-04 Legal status The legal status is an assumption and is not a legal conclusion...

Aug 01 2016 0183 32 Chris Jaques president of IDEX Rescue says that most of the innovation for Hurst Jaws of Life hydraulic rescue tools has been driven by the need for power and speed Cars have challenged the tools of 20 years ago so we have to stay ahead of them which means the power to cut and spread the latest in high-strength steels Jaques says...

What to do before closing the extrusion blow molding machine When the machine is stopped the speed is reset to zero The heating sections are closed section by section Close the mold in a closed state blow the needle half a centimeter away from the mold to prevent a hard object from falling into the mold and causing the damage...

all components in your hydraulic system Shock waves can be created by closing a valve in a high flow line such as one found in a petroleum terminal Accessories A full range of accessories for the installation service and maintenance of all accumulators completes the program In addition to the items shown special valve blocks and...

AA Luo AK Sachdev in Advances in Wrought Magnesium Alloys 2012 Hydrostatic extrusion process Hydrostatic extrusion processing typically used for copper tubing fabrication is a much faster extrusion process compared with the conventional direct extrusion It was reported that seamless magnesium tubes were extruded using the hydrostatic process at speeds up to 100 m/min due to the...

Jul 26 1994 0183 32 An extrusion head for an extrusion installation for extruding plastic material and having two three or four extrusion cylinders has a stationary part which is fixedly mounted on the discharge ends of the extrusion cylinders and has flow channels for directing extrudate leading from the cylinders to a central extrusion location at which there is a seat for an extrusion die...

Jaws useful lenght Specifications 1 525 Kg 1 5/22 ton 680 mm 720 mm 260/404 mm 65 ton 120 ton 195 ton 20/30 120 bar 140/200 350 bar hydraulic Jaws width lower/upper C Closing force at tip F3 Closing force F2 Closing force at blades F 1 Rotation oil flow min/max Rotation pressure Opening/closing oil flow Opening/closing pressure...

Jaws useful lenght Specifications 1270 Kg 13/16 ton 635 mm 670 mm 260/404 mm 55 ton 105 ton 180 ton 20/30 1/min 120 bar 110/160 1/min 350 hydraulic Jaws width lower/upper C Closing force at tip F3 Closing force F2 Closing force at blades Fl Rotation Oil flow min/max Rotation pressure Opening/closing oil flow Opening/closing pressure...

Aug 13 2020 0183 32 The preheated billet is placed into the gap and the hydraulic ram starts to press it into the die or in indirect extrusion moves the die over the material...