High pressure press
View Patent ↗In one aspect of the invention, a cartridge assembly is adapted for connection to a frame of a high pressure, high temperature press having a front end with a back up intermediate and coaxial with an anvil and a piston. The back up has an anterior end proximate the anvil and posterior end proximate the piston. The cartridge assembly has a hydraulic system adapted to apply axial pressure to the back-up through the piston to axially move the front end with respect to a cartridge body. The assembly also has a centralizing assembly with a rod rigidly attached to the cartridge body at a first end and a second end adapted to slide within a peripheral bore formed in the front end.
1. A cartridge assembly of a high pressure, high temperature press, comprising:
a front end comprising an anvil and a coaxial piston;
the piston being connected to a centering mechanism opposite the anvil;
the centering mechanism being located in a same bore of the cartridge as the piston and being stabilized by the bore's diameter;
the centering mechanism comprising an urging element adapted to align the piston.
2. The cartridge assembly of claim 1 , wherein the urging element is a compression spring.
3. The cartridge assembly of claim 1 , wherein the urging element is located inside a receptacle formed in the mechanism.
4. The cartridge assembly of claim 1 , wherein the urging element is located outside a receptacle formed in the mechanism.
5. The cartridge assembly of claim 1 , wherein the centering mechanism comprises a bearing surface adapted to contact a wall of the bore.
6. The cartridge assembly of claim 1 , wherein the piston is connected to the centering mechanism through a threadform.
7. The cartridge assembly of claim 1 , wherein the piston is connected to the centering mechanism through a press fit.
8. The cartridge assembly of claim 1 , wherein the piston comprises a detachable handle proximate the centering mechanism and within a retraction port.
9. The cartridge assembly of claim 8 , wherein the handle is substantially coaxially aligned with the central axis of the cartridge.
10. The cartridge assembly of claim 8 , wherein the retraction port is substantially conical.
11. The cartridge assembly of claim 1 , wherein the piston comprises a locking feature disposed in a wall of the piston and adapted to secure the centering mechanism to the piston.
12. The cartridge assembly of claim 11 , wherein the locking feature is a pin inserted in a through hole disposed in a wall of the piston.
13. The cartridge assembly of claim 1 , wherein the centering mechanism comprises a fixture disposed partially within the piston and on a peripheral edge of the piston and comprising a contact end such that the contact end contacts a receptacle disposed coaxial with and in the same bore as the piston.
14. The cartridge assembly of claim 13 , wherein a contact end of the fixture is adapted to translate along a recess geometry when a lateral force is applied to the front end such that the fixture travels in an axial and lateral direction.
15. The cartridge assembly of claim 13 , wherein the urging element is connected to the fixture and adapted to apply a force to the piston when compressed such that the force causes the piston to align its axis with the axis of the cartridge.
16. The cartridge assembly of claim 13 , wherein a first end of the fixture has a diameter larger than a diameter of a second end such that the fixture comprises a substantially conical shape.
17. The cartridge assembly of claim 13 , wherein the receptacle has a larger diameter than a diameter of the first end of the fixture.
18. The cartridge assembly of claim 1 , wherein the centering mechanism comprises an inner diameter adapted to allow a second piston to be inserted into the centering mechanism.
19. The cartridge assembly of claim 1 , wherein the press is a forging presses, solid frame presses, open frame presses, three-axes presses, tetrahedral presses, belt presses, and combinations thereof.