B28B3/2636

Additively Manufactured Concrete-Bearing Radiation Attenuation Structure
20170365365 · 2017-12-21 ·

A radiation-shielding attenuation structure and method of forming the attenuation structure, wherein the attenuation structure is made by additively manufacturing a concrete material that includes one or more attenuation dopants configured to enhance the radiation shielding of the concrete material. The one or more attenuation dopants may be configured in the concrete material to attenuate one or more types of radiation, such as electromagnetic radiation, gamma radiation, X-ray radiation, or neutron radiation. The attenuation structure formed by the concrete material may be additively manufactured on-site according to a model that has already been pre-certified for safe or secure use, thereby providing a repeatable and reproducible process that can reduce lead times and fabrication costs. The attenuation structure may be easily modified during the additive manufacturing process to have different concrete mixtures with different attenuation characteristics, which increases the tailorability and flexibility in design of the attenuation structure.

Honeycomb bodies with multi-zoned honeycomb structures and co-extrusion manufacturing methods

A honeycomb body with a honeycomb structure having an inner zone of a first plurality of walls and an outer zone of a second plurality of walls at least partially surrounding the inner zone. The honeycomb structure has Pi that is greater than Po and MPSi that is greater than MPSo, wherein Pi is an average bulk porosity of the first plurality of walls, Po is an average bulk porosity of the second plurality of walls, MPSi is a median pore size of pores in the first plurality of walls, and MPSo is a median pore size of pores in the second plurality of walls. Various honeycomb structures, honeycomb extrusion apparatus, and co-extrusion methods are disclosed.

ONE-STEP FORMATION OF AN INTEGRATED COMPOSITE STRUCTURE COMPRISING CURED MORTAR LAYERS AND A POLYURETHANE LAYER BY 3D PRINTING

The present invention relates to a process of fabricating a multi-layer composite structure by 3D printing, said composite structure comprises at least one cured mortar layer formed by curing of a mortar composition, and at least one polyurethane layer formed by polymerization of a first polyurethane forming composition, wherein said mortar composition and said first polyurethane forming composition are dispensed individually and simultaneously via adjacent printing nozzles. The mortar composition is optionally modified by a second polyurethane forming composition.

Extrusion method for making a gaseous emissions treatment component

In a method of making a gaseous emissions treatment component, a ‘green’ ceramic mix is extruded through a die to form an extrusion having cells extending along the extrusion, the cells being bounded by walls dividing adjacent cells from one another. In concert with the extruding, metal is fed through the die with the extruded mix. A length of the extrusion and associated metal is then cut off and fired to form the component.

Three-dimensional printing technology

A three-dimensionally printed structure is provided. The three-dimensionally printed structure includes a first layer composed at least in part of a first material; a second layer composed at least in part of the first material, the second layer being positioned over, under, or through the first layer and having an interface with the first layer; and a first internal structure composed at least in part of a second material different from the first material, the first internal structure being situated in both the first layer and the second layer.

HONEYCOMB BODIES WITH MULTI-ZONED HONEYCOMB STRUCTURES AND CO-EXTRUSION MANUFACTURING METHODS
20210197185 · 2021-07-01 ·

A honeycomb body with a honeycomb structure having an inner zone of a first plurality of walls and an outer zone of a second plurality of walls at least partially surrounding the inner zone. The honeycomb structure has Pi that is greater than Po and MPSi that is greater than MPSo, wherein Pi is an average bulk porosity of the first plurality of walls, Po is an average bulk porosity of the second plurality of walls, MPSi is a median pore size of pores in the first plurality of walls, and MPSo is a median pore size of pores in the second plurality of walls. Various honeycomb structures, honeycomb extrusion apparatus, and co-extrusion methods are disclosed.

THREE-DIMENSIONAL PRINTING TECHNOLOGY

A three-dimensionally printed structure is provided. The three-dimensionally printed structure includes a first layer composed at least in part of a first material; a second layer composed at least in part of the first material, the second layer being positioned over, under, or through the first layer and having an interface with the first layer; and a first internal structure composed at least in part of a second material different from the first material, the first internal structure being situated in both the first layer and the second layer.

Apparatus For Reinforced Cementitious Construction By High Speed 3D Printing
20210107177 · 2021-04-15 ·

The present invention relates to methods and apparatuses for an automated reinforced concrete construction system for onsite slip-form molding and casting a variety of cementitious mixes in a cast in place leave in place externally moldable flexible reinforced containment sleeve providing a wide variety of interchangeable full-scale molding configurations simultaneously optimizing a wide variety of cementitious mix curing characteristics, further having optional internal reinforcement net(s), for layer wise interlocking additive printed brick deposition providing improved slip-form mold casting of a wide variety of reinforced concrete structures; the present invention further includes a variety of operating platforms suitable for on and offsite constriction as disclosed herein.

GASEOUS EMISSIONS TREATMENT COMPONENTS AND EXTRUSION METHODS FOR THEIR MANUFACTURE
20210046421 · 2021-02-18 ·

In a method of making a gaseous emissions treatment component, a green ceramic mix is extruded through a die to form an extrusion having cells extending along the extrusion, the cells being bounded by walls dividing adjacent cells from one another. In concert with the extruding, metal is fed through the die with the extruded mix. A length of the extrusion and associated metal is then cut off and fired to form the component.

Basalt sandwich-panel additive manufacturing
10870217 · 2020-12-22 ·

The present invention includes an insulating panel for building structures, a printing device for making an insulating panel for building structures, and a method for the manufacturing of an insulating panel for building structures. The insulating panel resulting from the printing device comprises a multi-layered basalt sandwich wall that is made of external layers on either side of a middle layer. The external layers comprise a load-bearing coating made from basalt, and the middle layer comprises a heat insulating material made from basalt (basalt wool or foamed basalt). As a result, a specific sandwich-panel is manufactured from one local raw material (basalt), which possesses high mechanical and heat insulating properties. Such technology can be used for erecting comfortable buildings for colonists for long term use even under severe climatic conditions of solar system planets and satellites where appropriate raw materials exist.