摘要:
The powder molded product of the present invention is produced through molding of a slurry containing a powdery molding raw material, a dispersion medium for dispersing the molding raw material, a dispersant for uniformly dispersing the molding raw material in the dispersion medium, a binder precursor for producing an organic binder through a chemical reaction, a reaction promoter for promoting the chemical reaction, and a pseudo-plasticity-imparting agent for imparting pseudo-plasticity to the slurry. The production method of the present invention includes a slurry preparation step; a molding step of molding the prepared slurry into a primary powder molded product having a specific shape; and a drying-solidification step of solidifying the slurry by promoting the aforementioned chemical reaction in the primary powder molded product, and removing, through evaporation, the dispersion medium from the primary powder molded product.
摘要:
Method for treating catalyzed hydraulic mixtures containing known industrial slags and aggregates for making non polluting manufactured articles which can be freely stocked, comprising the following phases: a) a shaping phase of the respective mixture in blocks having a regular or irregular geometrical form, for example a parallelepipedic form, a plate-like form or similar, b) a pressing phase of said blocks under a high pressure which is equal to or higher than the working pressure of road rollers by the construction of roads, and c) a block curing phase of, for example, about 60 days. The obtained manufactured articles can be used in their actual form, that is for the building of walls and masonries, for forming foundations or yard floorings, for building temporary or final embankments, as for example artificial reefs. The obtained manufactured articles can also be crushed and utilized as inert materials as replacement of the natural or quarry aggregates.
摘要:
Plant for creating precompacted ceramic powder blanks and feeding them to the forming cavity of a press, comprising a conveying line for at least one mould, along which there are provided a powder loading station, a precompacting station and a discharge station positioned along said conveyor, means within said loading, precompacting and discharge stations to drive the mould parts, means for removing the precompacted blank from the mould, means for transferring said blank onto the forming cavity of a press and means for transferring said at least one mould from that end to the other end of said conveyor.
摘要:
Method for forming ceramic tiles, comprising the following operative steps: creating a continuous layer of powders on a conveyor belt; advancing said belt through a first pressing station of continuous type, with which means for laterally retaining the powders are associated, to effect a first pressing of the powders during the advancement of the belt, and obtain a coherent article of compacted powders; and, by suitable means, controlling and limiting the expansion of said powder article on termination of said first compaction.
摘要:
Procédé et dispositif de fabrication d'éléments de construction, notamment de panneaux pour murs intérieurs, à partir d'un mélange de plâtre, d'une charge telle que du sable et d'eau, par compression lente du mélange dans un moule (14) à compartiments multiples (26), puis par démoulage des éléments contenus dans les compartiments (26) du moule de façon à ce que la prise du plâtre s'opère à l'extérieur du moule (14).
摘要翻译:该方法包括用石膏,砂和水的混合物填充多室模具(14),并缓慢压缩混合物以压实它并除去多余的水和空气,将其体积降至最低水平。 长时间施加在较低水平的压力,其次为短时间的较高杆,达到最大约10MPa。 模具同时从所有的块移除,每块大约25 x 50 x 10厘米,然后允许自己设置。
摘要:
A method for pressing powder material (1, 10) to obtain tiles (14, 14a) comprises the steps of: distributing powders (6, 8) on flexible conveyor means (3) and advancing said powders (6, 8) along an advancing direction (V) through a pressing station, peripherally containing said powders (6, 8) on said conveyor means (3) by containing means (71, 72, 72a) in said pressing station, pressing said powders (6, 8) in said pressing station by pressing simultaneously the powder material of the intended tiles (14, 14a), said containing means acting on the powders (6, 8) to be pressed during said advancing and those containing means continuing to act during said pressing; said containing means (71, 72, 72a) further comprises powders (71, 72, 72a) located in a zone peripherally exceeding the intended tiles (14, 14a); an apparatus for pressing powdered material (1, 10) to form tiles (14, 14a) comprises flexible conveyor means (3) for receiving powders (6, 8) thereon from distributing means (2, 2a, 7) and for advancing said powders along an advancing direction (V) through a pressing station, containing means for peripherally containing said powders (6, 8) on said conveyor means (3), pressing means (3, 40, 55, 59a) for pressing said powders (6, 8) in said pressing station and pressing simultaneously on the powder material of the intended tiles (14, 14a), said containing means being arranged to act on the powders (6, 8) to be pressed during said advancing and said containing means continuing to act during said pressing; said containing means further comprises powders (72, 72a) arranged in a zone peripherally exceeding the intended tiles (14, 14a).
摘要:
A method for pressing powder material (1, 10) to obtain tiles (14, 14a) comprises the steps of: distributing powders (6, 8) on flexible conveyor means (3) and advancing said powders (6, 8) along an advancing direction (V) through a pressing station, peripherally containing said powders (6, 8) on said conveyor means (3) by containing means (71, 72, 72a) in said pressing station, pressing said powders (6, 8) in said pressing station by pressing simultaneously the powder material of the intended tiles (14, 14a), said containing means acting on the powders (6, 8) to be pressed during said advancing and those containing means continuing to act during said pressing; said containing means (71, 72, 72a) further comprises powders (71, 72, 72a) located in a zone peripherally exceeding the intended tiles (14, 14a); an apparatus for pressing powdered material (1, 10) to form tiles (14, 14a) comprises flexible conveyor means (3) for receiving powders (6, 8) thereon from distributing means (2, 2a, 7) and for advancing said powders along an advancing direction (V) through a pressing station, containing means for peripherally containing said powders (6, 8) on said conveyor means (3), pressing means (3, 40, 55, 59a) for pressing said powders (6, 8) in said pressing station and pressing simultaneously on the powder material of the intended tiles (14, 14a), said containing means being arranged to act on the powders (6, 8) to be pressed during said advancing and said containing means continuing to act during said pressing; said containing means further comprises powders (72, 72a) arranged in a zone peripherally exceeding the intended tiles (14, 14a).