DE481472C - Mass for ceramic objects - Google Patents
Mass for ceramic objectsInfo
- Publication number
- DE481472C DE481472C DES76802D DES0076802D DE481472C DE 481472 C DE481472 C DE 481472C DE S76802 D DES76802 D DE S76802D DE S0076802 D DES0076802 D DE S0076802D DE 481472 C DE481472 C DE 481472C
- Authority
- DE
- Germany
- Prior art keywords
- mass
- silica
- ceramic objects
- ceramic
- quartz
- 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
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Processing Of Solid Wastes (AREA)
Description
lWasse für keramische Gegenstände Vorliegende Erfindung betrifft die Herstellung einer Masse für keramische Gegenstände, die aus einer freie Kieselsäure enthaltenden Mischung besteht.lWater for Ceramic Articles The present invention relates to Manufacture of a mass for ceramic objects from a free silica containing mixture.
Die Kieselsäure ist bis heute als Sand, Quarz oder Quarzit verwendet worden, d. h. in kristallisierter Form.The silica has been used until today as sand, quartz or quartzite, d. H. in crystallized form.
Es ist bekannt, daß kristallisierte Kieselsäure plötzlichen Veränderungen beim Übergang in allotrope Zustände in Abhängigkeit von der Temperatur unterworfen ist. Bei ungefähr 57o' erleidet der Quarz eine plötzliche Ausdehnung, indem er in ß-Quarz übergeht. Diese Ausdehnung, die vor der Vereinigung der Kieselsäure mit den Übrigen Bestandteilen der Masse eintritt, ist der Ursprung unliebsamer Schwierigkeiten beim Brennen der Stücke. Man kann diesen Übelständen erfindungsgemäß abhelfen und die Erzeugnisse bedeutend verbessern, wenn Kieselsäure in amorpher Form verwendet wird, insbesondere in vorher geschmolzenem Zustande, wie sie z. B. als Abfallprodukt der Quarzglasindustrie vorliegt.It is known that crystallized silica undergoes sudden changes subjected to the transition to allotropic states as a function of temperature is. At about 57o 'the quartz undergoes a sudden expansion by moving in ß-quartz passes over. This expansion that occurred prior to the association of the silica with the remaining constituents of the mass occurs, is the source of unpleasant difficulties while burning the pieces. According to the invention, these inconveniences can be remedied and Significantly improve products when using silica in amorphous form is, especially in a previously molten state, as it is z. B. as a waste product the quartz glass industry.
-- Dieses Material, das zermahlen oder zerbrochen sein kann, besitzt nicht nur eine sehr regehnä,ßige Dehnung, sondern auch einen außerordentlich niedrigen therinischen Ausdehnungskoeffizienten. Seine Verwendung verhindert jedes plötzliche Ausdehnen während des Brennprozesses und erlaubt eine bessere Kontrolle der Schrumpfung der Stücke und eine Verbesserung der Eigenschaften der keramischen Erzeugnisse. Außerdem sei hervorgehoben, daß geschmolzene Kieselsäure viel leichter mit den übrigen Bestandteilen der Masse in Verbindung tritt als kristallisierte Kieselsäure, und daß es daher möglich ist, bei niedrigerer Temperatur zu brennen. Dies kommt besonders bei der Herstellung keramischer Erzeugnisse, die bei hoher Temperatur gebrannt werden müssen, in Betracht. wie z. B. bei zu elektrischen Zwecken bestimmtem Porzellan.- This material, which can be ground or broken, possesses not only a very rainy stretch, but also an extremely low one thermal expansion coefficient. Its use prevents any sudden Expands during the firing process and allows better control of shrinkage of the pieces and an improvement in the properties of ceramic products. It should also be emphasized that fused silica is much easier with the rest Constituents of the mass in contact as crystallized silica, and that it is therefore possible to burn at a lower temperature. This comes especially in the manufacture of ceramic products that are fired at high temperatures must be considered. such as B. in porcelain intended for electrical purposes.
Bei keran-iischen Erzeugnissen, in denen die kristallisierte Kieselsäure infolge der niedrigen Brenntemperatur keine Verbindungen eingeht, wie z. B. bei Fayence, bietet die Verwendung von geschmolzener Kieselsäure den großen Vorteil, daß eine viel regelmäßigere Dehnung des Erzeugnisses stattfindet, was das Glasieren bedeutend erleichtert.In keran-iic products in which the crystallized silica due to the low firing temperature does not enter into any connections, such. B. at Faience, the use of fused silica offers the great advantage of that a much more regular stretching of the product takes place, which is what glazing significantly relieved.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR481472X | 1925-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE481472C true DE481472C (en) | 1929-08-21 |
Family
ID=8903567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES76802D Expired DE481472C (en) | 1925-12-24 | 1926-11-03 | Mass for ceramic objects |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE481472C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1108387B (en) * | 1956-04-23 | 1961-06-08 | Pittsburgh Plate Glass Co | Fireproof bodies for covering and dividing blocks in glass tub ovens |
DE2551721A1 (en) * | 1974-11-20 | 1976-05-26 | Rolls Royce 1971 Ltd | Refractory component and process for its manufacture |
-
1926
- 1926-11-03 DE DES76802D patent/DE481472C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1108387B (en) * | 1956-04-23 | 1961-06-08 | Pittsburgh Plate Glass Co | Fireproof bodies for covering and dividing blocks in glass tub ovens |
DE2551721A1 (en) * | 1974-11-20 | 1976-05-26 | Rolls Royce 1971 Ltd | Refractory component and process for its manufacture |
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