DE395037C - Process for the production of writing boards from artificial slate - Google Patents
Process for the production of writing boards from artificial slateInfo
- Publication number
- DE395037C DE395037C DEW57975D DEW0057975D DE395037C DE 395037 C DE395037 C DE 395037C DE W57975 D DEW57975 D DE W57975D DE W0057975 D DEW0057975 D DE W0057975D DE 395037 C DE395037 C DE 395037C
- Authority
- DE
- Germany
- Prior art keywords
- production
- writing boards
- cement
- slate
- artificial slate
- 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
- 239000010454 slate Substances 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 6
- 239000004568 cement Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910001651 emery Inorganic materials 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 230000005283 ground state Effects 0.000 claims 1
- -1 brownstone Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Verfahren zur Herstellung von Schreibtafeln aus Kunstschiefer. Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Schreibtafeln aus Kunstschiefer, welche den aus Naturschiefer bestehenden Schreibtafeln mindestens gleichwertig und trotzdem billiger sind als diese.Process for the production of writing boards from artificial slate. object the invention is a process for the production of writing boards from artificial slate, which are at least equivalent to the writing boards made of natural slate and are still cheaper than this.
Die Herstellung von Kunstschiefer aus einem Gemisch von Zement und fein gemahlenen harten Stoffen, wie Braunstein, Marmor, Quarz, unter Zusatz von Wasser ist allerdings an sich bekannt. Der bekannte Kunstschiefer ist jedoch für Schreibtafeln nicht brauchbar, weil er entweder keine genügende Bruchfestigkeit besitzt und außerdem hygroskopisch ist, oder weil die Tafeln nach kurzem Gebrauch derartig glatt werden, daß selbst der härteste Griffel abgleitet, oder aber weil die Tafeln infolge zu großer Weichheit überhaupt nicht beschreibfähig sind.The manufacture of artificial slate from a mixture of cement and finely ground hard materials such as brownstone, marble, quartz, with the addition of However, water is known per se. However, the well-known artificial slate is for Writing boards not usable because they either do not have sufficient breaking strength and is also hygroscopic, or because the tablets have been used for a short time be so smooth that even the hardest stylus slips off, or because the boards cannot be written on at all because they are too soft.
Demgegenüber wird gemäß der Erfindung ein für Schreibtafeln in gleicher Weise wie der Naturschiefer verwendbarer Kunstschiefer dadurch erzeugt, daß man besonders harte Stoffe, wie Flintstein, Schmirgel verschiedener Art, Hochofenschlacke und manche in Urgebirgsdistrikten vorkommende unverwitterte Grauwackenarten u. dgl. von der Härte 7, in äußerst fein gemahlenem Zustande (Staubfeinheit) mit Zement und gegebenenfalls noch mit geeigneten farbigen Oxyden aufs innigste miteinander verreibt und nach gutem Durchsieben mit etwas Sulfitablauge enthaltendem Wasser zu einem Brei von speckiger Beschaffenheit anmacht. Die Zugabe eines Gesteines von der Härte 7 ist notwendig, um der fertigen Tafel an allen Stellen eine gleichmäßig rauhe Oberfläche zu geben. Die Sulfitablauge erhöht' die Bindekraft des Zementes. Der speckige Brei wird in schwachgeölte Metallformen gestrichen und verbleibt in diesen etwa 24 Stunden. Die Handarbeit kann durch geeignete, für diesen Zweck besonders konstruierte Preßmaschinen ersetzt werden. Darauf nimmt man die Formlinge, d. h. die Tafeln, aus den Formen heraus und lagert sie in feuchten Räumen bis zur völligen Abbindung des Zementes. Der Abbindungsprozeß kann durch Dämpfen mit Wasserdampf beschleunigt werden. Die Liniatur der Tafeln wird in gleicher Weise wie beim Naturschiefer erzeugt.In contrast, according to the invention, a for writing boards in the same The way in which natural slate creates usable artificial slate by particularly hard materials such as flint, emery of various types, blast furnace slag and some unweathered greywacke species and the like that occur in primeval mountain districts. of hardness 7, in extremely finely ground condition (fineness of dust) with cement and, if necessary, very intimately with one another with suitable colored oxides rubbed in and after thorough sifting with water containing a little sulphite waste liquor to a paste with a greasy texture. The addition of a rock of a hardness of 7 is necessary to ensure that the finished board is uniform in all places rough surface to give. The sulphite waste liquor increases the binding power of the cement. The greasy pulp is spread into lightly oiled metal molds and remains in this about 24 hours. The manual work can be done by appropriate ones, especially for this purpose constructed press machines are replaced. Then you take the moldings, i. H. the panels, out of the forms and stored them in damp rooms until complete Setting of the cement. The setting process can be carried out by steaming with water vapor be accelerated. The lines of the panels are the same as for natural slate generated.
Ein besonders gutes Erzeugnis entsteht, wenn man den Brei aus x50 g Zement, 6o g pulverisierten Mineralien von einem Härtegrad von mindestens 7, 8o ccm Wasser, 38 g Manganfarbe und xo ccm Sulfitablauge herstellt.A particularly good product is created when you use the pulp from x50 g cement, 6o g powdered minerals of a hardness of at least 7,8o ccm of water, 38 g of manganese paint and xo ccm of sulphite liquor.
Die neuen Tafeln können in - gefärbtem Zustande in derselben Weise wie die Naturschiefertafeln als Schreibtafeln und in ungefärbtem Zustande unter Verwendung gewöhnlicher Farbstifte oder Farben als Maltafeln verwendet werden. Das Herstellungsverfahren ist äußerst einfach und infolgedessen auch für kleinere Betriebe ohne nennenswerte Einrichtung geeignet. Die Tafeln selbst sind wesentlich billiger als Naturtafeln.The new panels can be in the same way in - colored condition like the natural slates as writing boards and in an undyed state below Use ordinary colored pencils or paints to be used as drawing boards. That The manufacturing process is extremely simple and, as a result, also suitable for smaller businesses Suitable without any significant facility. The boards themselves are much cheaper as natural boards.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW57975D DE395037C (en) | 1921-04-07 | 1921-04-07 | Process for the production of writing boards from artificial slate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW57975D DE395037C (en) | 1921-04-07 | 1921-04-07 | Process for the production of writing boards from artificial slate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE395037C true DE395037C (en) | 1924-05-12 |
Family
ID=7605356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW57975D Expired DE395037C (en) | 1921-04-07 | 1921-04-07 | Process for the production of writing boards from artificial slate |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE395037C (en) |
-
1921
- 1921-04-07 DE DEW57975D patent/DE395037C/en not_active Expired
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