A plane plate for a pressing tool of a press in which the plane plate for activating a punch of the press is by way of at least one lifting cylinder is displaceable along an axial direction. The plane plate has a link to the at least one lifting cylinder, a centrally disposed receptacle for contacting the punch or a punch holder of the press and at least one at least partially cylindrical guiding face which for contacting a guide column is parallel with the axial direction. The plane plate in at least a first cross section which between the receptacle and the guiding face runs parallel with the axial direction and along a radial direction that runs so as to be perpendicular to the axial direction has at least a first region with a wall thickness and a first centerline, wherein the first centerline runs at least partially at a first angle of at least 10 angular degrees and of at most 80 angular degrees in relation to the radial direction.

A process for making full dense components of a carbon-containing steel, comprises the steps of: a) making a powder of the carbon-containing steel by gas atomization wherein the carbon content is low, less than 0.15 wt %, b) agglomerating the powder from step a) with at least one hydrocolloid and elemental carbon, c) compacting the agglomerated powder from step b) to a density of at least 80% of theoretical density, with the proviso that the compacted agglomerated powder still is porous allowing transport of gas to and from its interior, and d) sintering the compacted powder to a density of more than 98% of theoretical density, preferably more than 99% of theoretical density, wherein a gas comprising carbon is added during sintering and finally subjecting the component to HVC. Advantages include that it is possible to manufacture a dense component of powders which otherwise are difficult to compact.

The invention presented is a die filling apparatus that includes a unique powder feed assembly that includes a novel plurality of vertically stacked drive gear-feed gear pairs that move filling powder through a series of sieves into a die used for compressing powder into a tablet. At least the bottom feed gear includes a plurality of logarithmic vanes or blades with an offset axis of rotation. Also presented is a method to fabricate pellets from powder using an apparatus to form a pellet.

Compaction systems and methods of compacting components are provided. In one aspect, a laminate of a component can be laid up on a tool of a compaction system. The laminate defines a cavity. A noodle is positioned relative to or in the cavity. A noodle ring is then positioned relative to the noodle. For instance, the noodle ring can be placed over the noodle. A cross section of the noodle ring can be shaped complementary to a cross section of the noodle. A plunger of the compaction system is moved so that it engages the noodle ring. Particularly, the plunger is moved in such a way that a force is applied on the noodle ring so that the noodle ring compacts the noodle into the cavity.

A powder molding press method of a green compact for a cutting insert including: filling a molding space with raw material powder in a state where a lower punch is inserted from below into a hole portion of a die; performing preliminary molding by inserting an upper punch for preliminary molding including a preliminary molding surface having a shape different from a shape obtained by inverting the upper surface of the green compact for a cutting insert in a plane symmetry into the molding space from above such that a thick portion between the upper and lower surfaces in the direction of the insert center line is filled with more raw material powder than a thin portion therebetween, relative to a state before the step of performing the preliminary molding; and inserting an upper punch for final molding into the molding space from above to powder-molding-press the raw material powder.

The invention provides a method of producing a solid material, and the method includes: applying a light coloring substance to at least one of an inner surface of a die bore, an upper end surface of a lower punch, and a lower end surface of an upper punch; filling a powdery material in the die bore; compression molding the powdery material filled in the die bore with use of the upper punch and the lower punch; and irradiating with light a molded product obtained by the compression molding to color the molded product.

The carbonate bonded, press-moulded article is produced by press-moulding a particulate, carbonatable material that contains water and by carbonating the obtained compact with carbon dioxide gas. In order to be able to ensure an optimal compressive strength of the article two types of tests are provided. In the first type of test a sample of the particulate material is compressed with an increasing compaction pressure and when water starts to be expelled from the material as from a particular compaction pressure, the press-moulding step is performed with a compaction pressure which is at least 7 MPa smaller than this compaction pressure. In the second type of test different samples of the particulate material are press-moulded with different compaction pressures and, after having released the compaction pressure, the density of the compact is determined. In case this density decreases instead of increases as from a particular compaction pressure, the press-moulding step is performed with a compaction pressure which is smaller than this particular compaction pressure.

A sintering apparatus includes: a non-transportable section mounted in the atmosphere; a transportable section that has a mold capable of accommodating a material to be processed and is loaded detachably with respect to the non-transportable section; and a covering member that envelops the transportable section loaded on the non-transportable section in an almost hermetically sealed state and allows the transportable section to be separated from the non-transportable section with the transportable section enveloped in the almost hermetically sealed state.

The present invention relates to a device (1) for sintering by pulsating current, the device (1) comprising: —a sintering cell (4) comprising two walls (14a, 14b) facing each other and defining between them a cavity (C) for receiving material to be sintered, —a press (2) arranged for moving one of the walls (14a, 14b) towards the other wall, so as to compress the material, when the material is received in the cavity (C), —means (10a, 10b) of rotating one of the walls (14a, 14b) relative to the other wall, so as to apply a torsional force to the material, when the material is compressed in the cavity (C).

Provided is a method for producing a compressed body of a powder capable of improving a hardness while suppressing a decrease in production efficiency of the compressed body of the powder. A compressed body 14 of a powder is compression molded by compressing a powder supplied into die holes 18 by a lower punch 31 and an upper punch 32. In the compression molding, a first compression and a second compression following the first compression are performed. In the first compression, the compression is performed at a first compression speed, and in the second compression, the compression is performed at a second compression speed that is lower than the first compression speed.