摘要:
A method and apparatus for modifying the surface texture of pre-cast building blocks including a pressure-applying device so positioned as to selectively engage blocks and being adapted to apply a pressure on the surface of blocks so as to modify their texture thereof prior to the curing of the blocks. Also disclosed is an apparatus for modifying the surface texture of pre-cast building blocks including mechanisms and structures adapted to provide a plurality of longitudinal movements and a plurality of rotational movements to adjust the direction of the wearing tool in respect to the alignment of the blocks when modifying the surface texture of these blocks as well as a block-stabilizing device for stabilizing blocks during surface-texture modification operations.
摘要:
Ein Faserzementprodukt, insbesondere eine Faserzementplatte zum Aufbringen auf Wände wie Fassaden oder Innenwände, auf Fußböden und dergleichen sowie zur Anwendung im Möbelbau zeigt eine bei Verwendung sichtbare strukturierte Oberfläche. Die Oberfläche ist dabei unregelmäßig strukturiert.
摘要:
Die Erfindung bezieht sich auf ein Verfahren zum Herstellen von Bodenplatten aus zementgebundenem Material bzw. aus Beton mit einem u. a. die Oberseite der jeweiligen Platte bildenden Vorsatz (2) aus Fein- oder Vorsatzbeton und mit einem die Unterseite bildenden Kern (3) aus einem Kernbeton durch Formpressen in einem Formraum (10) einer Pressform (9,9a).
摘要:
A ceramic honeycomb catalyst carrier, characterized in that it has a porosity of 20 % or less and has an average surface roughness Ra of partition walls of a large value of 0.5 mu m or more; and a method for preparing the ceramic honeycomb catalyst carrier which comprises providing a dried ceramic honeycomb by forming a ceramic material followed by drying, exposing the dried ceramic honeycomb to a gas stream containing abrasive grains dispersed therein, to thereby render the surface of the partition walls of the dried ceramic honeycomb to be rough, and then firing the dried ceramic honeycomb, or which comprises providing a fired ceramic honeycomb by forming a ceramic material followed by drying and firing, and then exposing the resultant fired ceramic honeycomb to a gas or water stream containing abrasive grains dispersed therein, to thereby render the surface of the partition walls of the fired ceramic honeycomb to be rough.
摘要:
Verfahren zum Fertigen von multifunktonalen Formelementen, wie Steinen, Platten und dergleichen, aus Beton, wobei die Fertigung auf Basis einer Verdichtung in mit Beton gefüllten, auf Formbrettern (1) angeordneten Formen und/oder der Formelementoberfläche entsprechenden Stempeln oder mittels Rütteln, Stampfen und/oder Gießen auf einem Boden erfolgt und die Formelemente danach aushärten, wobei die Formelemente (2), z.B. Steine, Platten und dergleichen, vor dem Aushärten ihrer Oberflächen auf zumindest einer winklig zur Auflagefläche auf dem Formbrett oder Boden angeordneten Seitenfläche einer durch Behandlungswerkzeuge unterstützten Seitennachbehandlung unterzogen werden und die Formelemente (2) zur Seitennachhandlung auf einen solchen Abstand zueinander gebracht werden oder sind, dass der Abstand dem Raumbedarf eines Behandlungswerkzeuges entspricht.
摘要:
The invention relates to a machine for edge-milling (rumbling) concrete blocks (1) that have not yet hardened. Said machine comprises a horizontal conveyer (3) for transporting concrete blocks lying in one position on a support plate (2) and a hammer mechanism (4) located above the horizontal conveyer (3). The hammers (8) of said hammer mechanism (4) are positioned one behind the other in several rows in the direction of transport and are offset, so that they can hammer the surface of the concrete blocks (1*) lying below. The individual hammers (8) are suspended on lifting drives (13 to 19) that allow said hammers to swing.
摘要:
The invention relates to a method for producing nonslip floor coverings (1) made from mineral materials such as natural stone, fine stoneware, artificial stone or ceramics. The inventive method is carried out in two stages. In the first stage, micro-craters which are invisible to the human eye are created and statistically distributed on the surface of the floor coverings or slabs by means of pulsed laser bombardment. According to the invention, the surface of the floor coverings or slabs thus obtained are subsequently subjected to hydromechanical post-treatment, wherein the surface of the laser-structured floor covering or slabs are sprayed at least twice with a liquid (3, 8) e.g. inorganic acid or halogen hydrogen acid. The final spray process (8) is used to clean and/or neutralize previous spray liquids from the surface of the floor covering (1) or slabs. After each spray process, at least one further process occurs wherein the spray liquid is distributed homogeneously on the surface of the floor coverings or slabs and excess spray liquid is removed (12) from this surface. Subsequently, at least one drying process (13) is carried out.
摘要:
A ceramic honeycomb catalyst carrier wherein a porosity is 20% or less and an average surface roughness (Ra) of a partition wall of the carrier is 0.5µm or more is obtained by forming ceramic raw materials to obtain a ceramic honeycomb formed body; drying the ceramic honeycomb formed body to obtain a ceramic honeycomb dried-up body; roughening a surface of the partition wall of the ceramic honeycomb dried-up body by exposing the ceramic honeycomb dried-up body in an airflow in which polishing powders are included; and sintering the ceramic honeycomb dried-up body after a surface treatment, or, by forming ceramic raw materials to obtain a ceramic honeycomb formed body; drying and sintering the ceramic honeycomb formed body to obtain a ceramic honeycomb sintered body; and roughening a surface of the partition wall of the ceramic honeycomb sintered body by exposing the ceramic honeycomb sintered body in an airflow or a water flow in which polishing powders are included.
摘要:
An apparatus (10) for producing a fissured, acoustical ceiling panel wherein pins (22) used to fissure the panel are roll applied thereto. The pins (22) are embedded in flexible, resilient polymeric plates (21), and a plurality of the plates (21) are attached to a rotary drum (20) which is used to apply the fissuring pins to the surface of the panel. The invention also includes the method for manufacturing the polymeric plates which are molded and formed with the fissuring pins embedded therein.
摘要:
L'invention concerne un procédé pour traiter des briques (2) faites d'argile et cuites au four, procédé dans lequel on place des briques (2) fraîches éventuellement soumises au sablage et éventuellement arrosées d'eau, et du mortier dans un tambour (1) entraîné en rotation, de sorte que les briques (2) tombent les unes sur les autres pendant un intervalle de temps déterminé. Après l'opération, on déverse du tambour (1) les briques (2) présentant diverses dégradations de forme et des incrustations de mortier. Au cours du traitement, les briques subissent des dégradations et perdent leurs arêtes vives de manière à prendre un aspect de briques anciennes ou un aspect rustique.