DE664943C - Process for the manufacture of refractory products - Google Patents
Process for the manufacture of refractory productsInfo
- Publication number
- DE664943C DE664943C DES116834D DES0116834D DE664943C DE 664943 C DE664943 C DE 664943C DE S116834 D DES116834 D DE S116834D DE S0116834 D DES0116834 D DE S0116834D DE 664943 C DE664943 C DE 664943C
- Authority
- DE
- Germany
- Prior art keywords
- manufacture
- zirconium
- refractory products
- silicate
- aluminum oxide
- 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
- C04B35/10—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 aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
- C04B35/106—Refractories from grain sized mixtures containing zirconium oxide or zircon (ZrSiO4)
-
- 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
- C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
Verfahren zur Herstellung von feuerfesten Erzeugnissen Es ist bekannt, feuerfeste Erzeugnisse unter. Verwendung von Zirkonsilicat herzustellen, indem m.an entweder das Zirkonsilicat mit Oxyd-en zusammenschmilzt, die sich mit der aus der. Zersetzung des Zirkons herrührenden Kieselsäure verbinden, oder indem man ein Gemisch, welches sich aus- fein gemahlenem Zirkon und Körpern, wie Carbiden oder tonerdehalti,gen Verbindungen, zusammensetzt, erwärmt. Die erstgenannte Herstellungsweise erfordert die Anwendung hoher Temperaturen, da das Zirkon erst bei etwa z5oo° C schmilzt. Demgegenüber arbeitet man bei dem zweiten Herstellungsverfahren mit niedrigeren Temperaturen, aber bei i 5oo° C und darüber zerfallen die ,erhaltenen Produkte unter Belastung infolge der Zersetzung des Zirkonsilicats in Zirkoniumoxyd und Kieselsäure, welche bei über 1q.00° C beginnt.Process for the manufacture of refractory products It is known refractory products under. Use of zirconium silicate by m.an either the zirconium silicate fuses with the oxides which come from the. Decomposition of the zirconium-derived silica, or by adding a mixture, which is made up of finely ground zirconia and bodies such as carbides or alumina Connections, put together, heated. The former production method requires the use of high temperatures, as the zirconium only melts at around 500 ° C. In contrast, the second manufacturing process uses lower Temperatures, but at 1500 ° C. and above, the products obtained disintegrate below Exposure due to the decomposition of zirconium silicate into zirconium oxide and silica, which starts at over 1q.00 ° C.
Den Mängeln dieser beiden Hierstellungsverfahren hilft die Erfindung ab. Sie besteht darin, daß man mit dem Zirkon solche Mengen von Aluminiumoxyd vermischt, daß beim Brennen über i 5oo° C die gesamte freie Kieselsäure, die aus dem Zerfall des Zirkons herrührt, zu Aluminiumsilicat gebunden wird.The invention helps to overcome the shortcomings of these two methods of presentation away. It consists in mixing such quantities of aluminum oxide with the zirconium, that when burning over 1500 ° C all the free silica that results from the disintegration derives from the zirconium, is bound to aluminum silicate.
Eine solche Mischung kann beispielsweise z 5 bis i o % Zirkon und 7 5 bis 9o o/o Korund oder Bauxit enthalten.Such a mixture can, for example, z 5 to 10% zirconium and 7 5 to 90% corundum or bauxite.
Das Brennen kann in einer Form oder an Ort und Stelle vorgenommen werden, um .einen feuerfesten Stampfhau oder feuerfeste Verkleidungen herzustellen.The firing can be done in a mold or on the spot in order to produce a fireproof rammed earth or fireproof cladding.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES116834D DE664943C (en) | 1935-01-18 | 1935-01-18 | Process for the manufacture of refractory products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES116834D DE664943C (en) | 1935-01-18 | 1935-01-18 | Process for the manufacture of refractory products |
Publications (1)
Publication Number | Publication Date |
---|---|
DE664943C true DE664943C (en) | 1938-09-09 |
Family
ID=7534052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES116834D Expired DE664943C (en) | 1935-01-18 | 1935-01-18 | Process for the manufacture of refractory products |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE664943C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE900913C (en) * | 1938-10-14 | 1954-01-04 | Gen Motors Corp | Spark plug isolator |
US2842447A (en) * | 1955-09-29 | 1958-07-08 | Corning Glass Works | Method of making a refractory body and article made thereby |
-
1935
- 1935-01-18 DE DES116834D patent/DE664943C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE900913C (en) * | 1938-10-14 | 1954-01-04 | Gen Motors Corp | Spark plug isolator |
US2842447A (en) * | 1955-09-29 | 1958-07-08 | Corning Glass Works | Method of making a refractory body and article made thereby |
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