B28B3/086

ISOSTATIC PRESSURE SPARK PLASMA SINTERING (IP-SPS) NET SHAPING OF COMPONENTS USING NANOSTRUCTURED MATERIALS

A method of forming a consolidated component having a complex shape includes providing a first component having a first shape similar to the complex shape. The method further includes placing the first component in a chamber and surrounding the first component with a medium. The method further includes applying pressure and at least one of heat or electricity into the chamber to process the first component to form a consolidated component having the complex shape.

INCINERATOR FLY-ASH PELLETIZATION METHOD AND APPARATUS THEREOF
20230129933 · 2023-04-27 ·

Disclosed is an incinerator fly-ash pelletization method that concentratively arranges incinerated garbage fly ash inside a supporting member, and uses upper and lower molding members that are respectively provided with upper and lower pressing forces of different magnitudes to press and mold the incinerated garbage fly ash into a fly-ash pellet having a rounded projection portion on each of upper and lower surfaces thereof for reuse in a subsequent stage. The rounded projection portion functions to separate multiple fly-ash pellets that are stacked together to facilitate complete combustion, so as to effectively reduce environmental pollution and realize the purposes of recycling and reusing waste resources and improving economic values. The apparatus includes an apparatus chassis, and upper and lower hydraulic cylinders are arranged in the apparatus chassis to respectively connect to the upper and lower molding members that are each provided, at a central portion, with an arc-form shallow trough.

MOLDING UNIT, MOLDING MACHINE, AND MOLDING METHOD
20220324137 · 2022-10-13 · ·

A molding unit includes: a flask guide member guiding the upper flask and the lower flask; a first squeeze member and a second squeeze member disposed in such a manner as to sandwich upper and lower flasks as the upper flask and the lower flask connected with each other, the first squeeze member and the second squeeze member each capable of entering the upper and lower flasks; a squeeze cylinder including a rod having an end part fixed to the first squeeze member and a cylinder body extending and contracting the rod; and a squeeze guide member configured to fix relative positions of the second squeeze member and the cylinder body. The flask guide member is a hollow rod member, and the squeeze guide member is a rod member disposed in a movable manner inside the flask guide member.

FRAME INTEGRATED VACUUM HOT PRESS APPARATUS
20170217046 · 2017-08-03 · ·

A frame integrated vacuum hot press comprises a frame chamber including a vacuum space having an opened side; a door installed to the frame chamber to open or close the opened side of the vacuum space; a heating chamber including a heating space and a heater heating an object to be formed which is loaded in the heating space; and a cylinder which is connected to the frame chamber to apply pressure to the object to be formed which is loaded in the heating space of the heating chamber.

POWDER DRY-PRESSING MOLDING DEVICE AND METHOD

The present invention relates to a powder dry-pressing molding device and method. The powder dry-pressing molding device includes a rack, the rack is provided with an first pressure mechanism, a workbench mechanism and a second pressure mechanism in sequence along an up-and-down direction, and one side of the workbench mechanism is provided with a scraping mechanism; the first pressure mechanism includes an upper slide block capable of moving up and down, and an upper punch is disposed at a bottom of the upper slide block; the workbench mechanism includes a middle mold seat, a workbench is fixed above the middle mold seat, a middle mold is disposed inside the middle mold seat, and a mandrel runs through the inside of the middle mold; the second pressure mechanism includes a lower slide block capable of moving up and down, a lower punch is fixed at the top end of the lower slide block, and the lower punch is capable of extending into a compacting space between the mandrel and the middle mold; and the scraping mechanism includes a pusher connected with a scraping driving mechanism and capable of moving along the workbench, the pusher is provided with a feeding channel capable of being communicated with the compacting space, and the feeding channel is capable of being communicated with a barrel disposed on the rack. The dry-pressing molding device of the present invention has a high degree of automation, can scrape the powder, and has a good processing effect.

Method for producing a green compact using a pressing tool, a pressing tool, a green compact, and a sintered part

A method for producing a green compact uses a pressing tool including a die, a first punch to be displaced in an axial direction, a second punch to be displaced in a radial direction through a channel in the die and a receptacle having a filling opening. The method includes locating the second punch before or during filling of a powdery material into the receptacle so as to be outwardly offset in the radial direction relative to an inner peripheral surface, filling the powdery material into the receptacle, and moving at least the first punch and the second punch and compressing the material in the receptacle, with the second punch being moved in the radial direction toward the receptacle only so far that it is disposed flush with a region of the inner peripheral surface. A pressing tool, a green compact and a sintered part are also provided.

SPARK PLASMA SINTERING METHODS FOR FABRICATING DENSE GRAPHITE

Various embodiments of the disclosure provide methods using spark plasma sintering (SPS) at moderate temperatures and moderate pressures to fabricate high-density graphite material. The moderate temperatures may be temperatures not exceeding about 1200° C. The moderate pressures may be pressures not exceeding about 300 MPa. The high density exhibited by the resulting, sintered, high-density graphite material may be greater than about 1.75 g/cm.sup.3 (e.g., greater than about 2.0 g/cm.sup.3).

HIGH RELIABILITY MECHANICAL AUTOMATIC CERAMIC PLATE DRY PRESS DEVICE
20220088824 · 2022-03-24 ·

A high reliability mechanical automatic ceramic plate dry press device is provided, comprising: a frame, a lower pressure mould, an upper pressure mould, a mould sleeve, a lower pressure closure band, a return closure band and a discharging push plate; a lower pressure slot is provided inside of the lower pressure closure band; an end of the cross bar is provided with a lower pressure fixture block corresponding to the lower pressure slot; the lower pressure closure band is provided with teeth outside of a position of the lower pressure fixture block; the frame is provided with a slow pressure gear and a quick pressure gear corresponding to the teeth; the discharging push plate is located below the lower pressure closure band, and a toothed bar matched with teeth is provided at a top of the discharging push plate. The device can realize automatic continuous processing and high pressing efficiency.

High reliability mechanical automatic ceramic plate dry press device

A high reliability mechanical automatic ceramic plate dry press device is provided, comprising: a frame, a lower pressure mould, an upper pressure mould, a mould sleeve, a lower pressure closure band, a return closure band and a discharging push plate; a lower pressure slot is provided inside of the lower pressure closure band; an end of the cross bar is provided with a lower pressure fixture block corresponding to the lower pressure slot; the lower pressure closure band is provided with teeth outside of a position of the lower pressure fixture block; the frame is provided with a slow pressure gear and a quick pressure gear corresponding to the teeth; the discharging push plate is located below the lower pressure closure band, and a toothed bar matched with teeth is provided at a top of the discharging push plate. The device can realize automatic continuous processing and high pressing efficiency.

JEWEL, IN PARTICULAR FOR A HOROLOGICAL MOVEMENT, AND THE MANUFACTURING METHOD THEREOF

A method for manufacturing a jewel of the polycrystalline type, in particular for a timepiece, the jewel including, for example, poly-ruby of the type al2O3Cr or Zirconia of the type ZrO2, the method including a first step of producing a precursor, and a second step of pressing the precursor in order to form a body, the pressing being carried out using a pressing device provided with an upper die and a lower die defining a pressing space in which the precursor is disposed, the device being provided with a wire passing through at least part of the lower die to open out into the pressing space, the lower die being capable of sliding about the wire, the pressing taking place by bringing the lower die and the upper die closer to one another to form a body comprising a bottom face provided with a hole.