DE523750C - Process for the production of press or casting molds for roof tiles with a roughened surface - Google Patents
Process for the production of press or casting molds for roof tiles with a roughened surfaceInfo
- Publication number
- DE523750C DE523750C DEL74349D DEL0074349D DE523750C DE 523750 C DE523750 C DE 523750C DE L74349 D DEL74349 D DE L74349D DE L0074349 D DEL0074349 D DE L0074349D DE 523750 C DE523750 C DE 523750C
- Authority
- DE
- Germany
- Prior art keywords
- press
- casting molds
- roof tiles
- roughened surface
- production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Description
Verfahren zum Herstellen von Preß- oder Gießformen für Dachziegel mit geraubter Oberfläche Uin auf der Oberfläche von Dachziegeln möglichst bald eine schön wirkende Patina zu erhalten," werden diese häufig mit einer rauben Oberfläche versehen.Process for producing press or casting molds for roof tiles with a robbed surface Uin on the surface of roof tiles as soon as possible To get a nice-looking patina, "these are often with a rough surface Mistake.
Zu diesem Zweck wurden bisher die fertig gepreßten rohen Ziegel nachträglich mit Sand oder entsprechenden Werkzeugen aufgerauht. Dieses Verfahren ist umständlich, außerdem wurde dadurch die Haut des Ziegelscherbens verletzt und dieser selbst einer stärkeren Verwitterung ausgesetzt. Auch das nachträgliche Auftragen eines Gemisches von Tonschlamm und Sand hatte, abgesehen von der i"inständlichkeit dieses Verfahrens, noch den Nachteil, daß das Gemisch nur schwer an der Oberfläche des Ziegels haften blieb.For this purpose, the ready-pressed raw bricks were previously used roughened with sand or appropriate tools. This procedure is cumbersome, it also injured the skin of the broken brick and one of the broken brick itself exposed to severe weathering. Also the subsequent application of a mixture of clay sludge and sand, apart from the inconvenience of this process, nor the disadvantage that it is difficult for the mixture to adhere to the surface of the brick stayed.
Soweit das Aufrauhen der Ziegeloberfläche auf maschinellem Wege geschah, wurde entweder loser Sand während des Pressens dein an der Oberfläche der Preßform vorbeistreichenden Material zugemischt, oder die Preßformen wurden lose mit Sand bestreut, der sich dann mit der Oberfläche des Formlings verband.As far as the roughening of the brick surface was done by machine, either became loose sand during pressing your on the surface of the die mixed with passing material, or the molds became loose with sand sprinkled, which then bonded to the surface of the molding.
Abgesehen davon, daß das dauernde gleichmäßige Nachführen von Sand zu den Preßformen praktisch sehr schwierig ist, wird auch die Oberfläche des Formlings durch die Sandkörner zu stark aufgeritzt, was gerade vermieden werden soll.Apart from the fact that the constant tracking of sand to the molds is practically very difficult, the surface of the molding is also scratched too much by the grains of sand, which is just to be avoided.
Diesen Übelständen hilft die Erfindung dadurch ab, daß die Mutterform, die zur Herstellung der erst zur Formung der Ziegel dienenden Preßformen Verwendung findet, selbst eine derartige Rauhung etwa durch Auftragen von Sand erhält, so daß jede von dieser Mutterform abgenommene, der Herstellung des Ziegels unmittelbar dienende Preßform dem Ziegel ohne weiteres die gewünschte raube Oberfläche gibt.The invention remedies these inconveniences by the fact that the mother mold, used for the production of the press molds which are only used for forming the bricks finds, even such a roughening is obtained by applying sand, so that each one removed from this master mold, directly from the manufacture of the brick Serving mold gives the brick the desired rough surface without further ado.
Dieses Verfahren ermöglicht es, einen Dachziegel mit einer für den Zweck der Patinabildung in ganz bestimmter Weise jedesmal gleichmäßig rauben Oberfläche herzustellen, ohne dauernd die Besandung .der Form erneuern zu müssen und ohne das Tonmaterial direkt mit Sand in Verbindung zu bringen.This method makes it possible to make a roof tile with a for the Purpose of patina formation in a very specific way every time evenly roughen the surface without having to constantly renew the sanding of the mold and without that Bringing clay material directly into contact with sand.
Das Verfahren bringt dem Bekannten gegenüber nicht nur den Vorteil, d.aß das dauernde Neubesanden nach jeder einzelnen Formung fortfällt und eine wechselnde Besandung vermieden wird, sondern es wird auch das Einmengen des Sandes in die Oberfläche des Formlings selbst ausgeschlossen.The procedure not only has the advantage over the known, d.that the permanent new sanding disappears after each individual formation and an alternating one Sanding is avoided but there will also be sanding into the surface of the molding itself excluded.
Verwendet man aus Gips hergestellte Preßformen, so ist das früher übliche Einstreuen von Sand beim Preßvorgang hierbei überliaupt nicht möglich, ohne diese Formen infolge ihres weichen Formeninaterials in kürzester Zeit zu verschleißen. Dagegen steht der Verwendung von Preßforinen aus Gips bei dem Verfahren gemäß der Erfindung nichts im Wege. Der Wert dieses Verfahrens besteht darin, daß es nicht nur ungemein einfach und billig im Vergleich mit den bisher üblichen Herstellungsverfahren ist, sondern daß auch die harte Ziegelhaut unverletzt erhalten bleibt.If you use molds made of plaster, then that is earlier The usual sprinkling of sand during the pressing process is mostly not possible without to wear out these molds in a very short time due to their soft mold material. This contrasts with the use of plaster of paris forins in the method according to FIG Invention nothing in the way. The value of this process is that it is not only uncommonly simple and cheap in comparison with the usual ones Manufacturing process is, but that the hard brick skin is preserved intact remain.
Das Verfahren gemäß der Erfindung hat auch noch den Vorteil, daß der Sand von der Mutterform stets wieder entfernt werden kann, wenn mittels dieser Mutterformen Gipsformen für Ziegel mit glatter Oberfläche hergestellt werden sollen.The method according to the invention also has the advantage that the Sand can always be removed from the mother mold when using these mother molds Plaster molds for bricks with a smooth surface are to be made.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL74349D DE523750C (en) | 1929-02-21 | 1929-02-21 | Process for the production of press or casting molds for roof tiles with a roughened surface |
DEL86693D DE625384C (en) | 1929-02-21 | 1934-10-02 | Process for the production of press or casting molds for roof tiles with a roughened surface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL74349D DE523750C (en) | 1929-02-21 | 1929-02-21 | Process for the production of press or casting molds for roof tiles with a roughened surface |
DEL86693D DE625384C (en) | 1929-02-21 | 1934-10-02 | Process for the production of press or casting molds for roof tiles with a roughened surface |
Publications (1)
Publication Number | Publication Date |
---|---|
DE523750C true DE523750C (en) | 1931-04-27 |
Family
ID=32657599
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL74349D Expired DE523750C (en) | 1929-02-21 | 1929-02-21 | Process for the production of press or casting molds for roof tiles with a roughened surface |
DEL86693D Expired DE625384C (en) | 1929-02-21 | 1934-10-02 | Process for the production of press or casting molds for roof tiles with a roughened surface |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL86693D Expired DE625384C (en) | 1929-02-21 | 1934-10-02 | Process for the production of press or casting molds for roof tiles with a roughened surface |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE523750C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19847087C1 (en) * | 1998-10-13 | 2000-01-05 | Rieter Werke Haendle | Method for making metal press molds for roof tiles having both durability and excellent release characteristics |
EP1106315A2 (en) * | 1999-12-07 | 2001-06-13 | Erlus Baustoffwerke Ag | Method for obtaining self-cleaning surfaces on products of ceramic, concrete or the like |
-
1929
- 1929-02-21 DE DEL74349D patent/DE523750C/en not_active Expired
-
1934
- 1934-10-02 DE DEL86693D patent/DE625384C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19847087C1 (en) * | 1998-10-13 | 2000-01-05 | Rieter Werke Haendle | Method for making metal press molds for roof tiles having both durability and excellent release characteristics |
EP1106315A2 (en) * | 1999-12-07 | 2001-06-13 | Erlus Baustoffwerke Ag | Method for obtaining self-cleaning surfaces on products of ceramic, concrete or the like |
EP1106315A3 (en) * | 1999-12-07 | 2003-01-29 | Erlus Baustoffwerke Ag | Method for obtaining self-cleaning surfaces on products of ceramic, concrete or the like |
Also Published As
Publication number | Publication date |
---|---|
DE625384C (en) | 1936-02-08 |
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