A method for producing a ceramic molded body, the method including: a molding step of subjecting a ceramic molding material to extrusion molding using an extrusion molding machine equipped with a temperature control portion to provide a ceramic molded body; a cutting step of cutting the ceramic molded body to have a predetermined length; and a dimension measuring step of measure a dimension of the cut ceramic molded body. A relationship between a temperature of the temperature control portion and the dimension of the cut ceramic molded body is previously obtained, and based on the relationship, an appropriate temperature of the temperature control portion is calculated from the dimension of the ceramic molded body measured in the dimension measuring step, and the temperature control portion is controlled to the appropriate temperature in the molding step.

A method for producing a ceramic molded body, the method including: a molding step of subjecting a ceramic molding material to extrusion molding using an extrusion molding machine equipped with a temperature control portion to provide a ceramic molded body; a cutting step of cutting the ceramic molded body to have a predetermined length; and a dimension measuring step of measure a dimension of the cut ceramic molded body. A relationship between a temperature of the temperature control portion and the dimension of the cut ceramic molded body is previously obtained, and based on the relationship, an appropriate temperature of the temperature control portion is calculated from the dimension of the ceramic molded body measured in the dimension measuring step, and the temperature control portion is controlled to the appropriate temperature in the molding step.

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.

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.

Improved process for producing a component constituting an interconnector of an HTE electrolyser or of an SOFC fuel cell. The invention relates to a process for preparing a component (1), intended to constitute an interconnector for a fuel cell (SOFC) or a high-temperature electrolyser (HTE), comprising the following steps: a/preparing a substrate made of metal alloy (12), the base element of which is iron (Fe) or nickel (Ni), the substrate having two main flat faces, b/tape casting a thick ceramic layer (13); c/localized removal at one or more locations (14), of material of the tape-cast thick ceramic layer; d/hot pressing the green thick ceramic layer tape; e/grooving the thick ceramic layer so as to delimit channels that are suitable for distributing and/or collecting gases. It also relates to the component obtained according to the process.

Improved process for producing a component constituting an interconnector of an HTE electrolyser or of an SOFC fuel cell. The invention relates to a process for preparing a component (1), intended to constitute an interconnector for a fuel cell (SOFC) or a high-temperature electrolyser (HTE), comprising the following steps: a/preparing a substrate made of metal alloy (12), the base element of which is iron (Fe) or nickel (Ni), the substrate having two main flat faces, b/tape casting a thick ceramic layer (13); c/localized removal at one or more locations (14), of material of the tape-cast thick ceramic layer; d/hot pressing the green thick ceramic layer tape; e/grooving the thick ceramic layer so as to delimit channels that are suitable for distributing and/or collecting gases. It also relates to the component obtained according to the process.

A pressing method for pressing ceramic slabs, comprising the following steps: spreading a layer (1) of granular or powdered material onto a pressing plane (2), wherein the layer (1) comprises at least a first zone (11), with a prefixed area and border, made of a granular or powdered primary material, and at least a second zone (12), with a prefixed area and border, made of a granular or powdered secondary material different from the primary material; pressing the layer (1) using a press (P); separating at least a main portion (10) of the first zone (11) from the second zone (12).

A stacked tube heat exchanger consisting of tubes that are affixed to a header or headers that are additively manufactured.

A stacked tube heat exchanger consisting of tubes that are affixed to a header or headers that are additively manufactured.

A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density.