The present invention relates to a method of making a solid cleaning composition. The method can include pressing and/or vibrating a flowable solid of a self-solidifying cleaning composition. For a self-solidifying cleaning composition, pressing and/or vibrating a flowable solid determines the shape and density of the solid but is not required for forming a solid. The method can employ a concrete block machine for pressing and/or vibrating. The present invention also relates to a solid cleaning composition made by the method and to solid cleaning compositions including particles bound together by a binding agent.

The present invention relates to a method of making a solid cleaning composition. The method can include pressing and/or vibrating a flowable solid of a self-solidifying cleaning composition. For a self-solidifying cleaning composition, pressing and/or vibrating a flowable solid determines the shape and density of the solid but is not required for forming a solid. The method can employ a concrete block machine for pressing and/or vibrating. The present invention also relates to a solid cleaning composition made by the method and to solid cleaning compositions including particles bound together by a binding agent.

Embodiments of the present disclosure relate to char bricks and methods of making char bricks. A composition (e.g., a char brick) includes about 0% to about 10% sand, about 30% to about 70% pyrolysis char (PC), and about 30% to about 60% cement. The PC has a particle size distribution from about 50 μm to about 500 μm. A method of making the composition includes mixing dry ingredients into a dry mixture, mixing the dry mixture with water to create a wet mixture; molding the wet mixture into a composition; and curing the composition. The dry ingredients include sand, pyrolysis char (PC), and cement. The PC has a particle size distribution from about 50 μm to about 500 μm.

A powder injection molding apparatus including an injection unit, mold formed of two mold parts with parting surface between first and second mold part, enclosing in assembled state of mold a mold cavity fluidically connected with injection unit via transfer channel, vibrational energy generator and transducer, and clamping unit designed to retain under the effect of clamping force first and second mold parts in contact with each other. Apparatus is characterized in that first and second mold parts include a first and second retaining hole, respectively, each extending essentially perpendicularly to parting surface and arranged opposite to each other respective to parting surface, clamping unit includes first and second pin each extending essentially perpendicularly to parting surface, wherein first and second pins cooperate in assembled state of mold with retaining portion of first and second retaining holes, respectively, to retain first and second mold parts in contact with each other.

A powder injection molding apparatus including an injection unit, mold formed of two mold parts with parting surface between first and second mold part, enclosing in assembled state of mold a mold cavity fluidically connected with injection unit via transfer channel, vibrational energy generator and transducer, and clamping unit designed to retain under the effect of clamping force first and second mold parts in contact with each other. Apparatus is characterized in that first and second mold parts include a first and second retaining hole, respectively, each extending essentially perpendicularly to parting surface and arranged opposite to each other respective to parting surface, clamping unit includes first and second pin each extending essentially perpendicularly to parting surface, wherein first and second pins cooperate in assembled state of mold with retaining portion of first and second retaining holes, respectively, to retain first and second mold parts in contact with each other.

The present invention relates to a method of making a solid cleaning composition. The method can include pressing and/or vibrating a flowable solid of a self-solidifying cleaning composition. For a self-solidifying cleaning composition, pressing and/or vibrating a flowable solid determines the shape and density of the solid but is not required for forming a solid. The method can employ a concrete block machine for pressing and/or vibrating. The present invention also relates to a solid cleaning composition made by the method and to solid cleaning compositions including particles bound together by a binding agent.

The present invention relates to a method of making a solid cleaning composition. The method can include pressing and/or vibrating a flowable solid of a self-solidifying cleaning composition. For a self-solidifying cleaning composition, pressing and/or vibrating a flowable solid determines the shape and density of the solid but is not required for forming a solid. The method can employ a concrete block machine for pressing and/or vibrating. The present invention also relates to a solid cleaning composition made by the method and to solid cleaning compositions including particles bound together by a binding agent.

A process for the preparation of an article by powder injection molding, the process including the steps of providing a feedstock containing a powder of a ceramic, a metal or a metal alloy dispersed in a binder, heating the feedstock, and injecting the heated feedstock into a mold cavity of a mold, where it cools and hardens to the configuration of the mold cavity. The process is characterized in that step c) is carried out under the application of vibrational energy onto the feedstock.

Concrete product machine apron gap adjustment by actuating a gapper mechanism to set a desired gap between a reciprocally-movable apron plate and an interchangeably installable mold assembly installed in a concrete products machine. The gapper mechanism sets a desired gap between the machine apron plate and the mold assembly by injecting an index amount of hydraulic fluid into fluid communication with the rod side of a primary apron plate positioning cylinder, causing the machine's apron plate to retreat a desired gap distance away from an engaged position against the mold assembly.

A multi-zone cementitious product, which includes a base zone made of a first cementitious material composition and forming a portion of the product. At least one facing zone is adjacent to and bonded to the base zone, the facing zone made of a second cementitious material composition and forming at least one exterior face of said product which is visible when the product is installed. A disrupted boundary layer is between the facing zone and the base zone, and includes material from both the facing zone and the base zone. The disrupted boundary layer bonds the facing zone to the base zone. The facing zone has a thickness sufficient to prevent the base zone from being visible when the product is installed.