DE3931959C1 - Spreading compsn. for protection of metallic equipment - comprises silicon carbide or corundum, polyurethane based resin and silicon di:oxide - Google Patents
Spreading compsn. for protection of metallic equipment - comprises silicon carbide or corundum, polyurethane based resin and silicon di:oxideInfo
- Publication number
- DE3931959C1 DE3931959C1 DE19893931959 DE3931959A DE3931959C1 DE 3931959 C1 DE3931959 C1 DE 3931959C1 DE 19893931959 DE19893931959 DE 19893931959 DE 3931959 A DE3931959 A DE 3931959A DE 3931959 C1 DE3931959 C1 DE 3931959C1
- Authority
- DE
- Germany
- Prior art keywords
- corundum
- protection
- compsn
- spreading
- based resin
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
- C08K3/14—Carbides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Die Erfindung betrifft eine Spachtelmasse zum Einsatz in der keramischen Industrie oder Bautechnik an metalli schen Geräte- oder Maschinenteilen. Derartige Metall teile sind beim Kontakt mit keramischen Massen wie z. B. Ton, Erde, Mörtel, Beton usw. einem hohen Verschleiß und damit Materialabtrag ausgesetzt.The invention relates to a filler for use in the ceramic industry or construction engineering at metalli equipment or machine parts. Such metal parts are in contact with ceramic materials such. B. Clay, earth, mortar, concrete, etc. high wear and tear thus exposed to material removal.
Die bisher zum Schutze dieser Metallteile verwandten Spachtelmassen leiden unter einer schlechten Verarbeit barkeit auf geneigten, senkrechten oder verformten Flä chen, da hierbei das aufgebrachte Material infolge sei nes Eigengewichtes zu verfließen beginnt und die Dicke der Oberflächenbeschichtung inhomogen wird. Verstärkter Verschleiß an den nur unzureichend mit einer Schutz schicht versehenen Bereichen sind die Folge.The previously used to protect these metal parts Putties suffer from poor processing availability on inclined, vertical or deformed surfaces Chen, as this would result in the material being applied weight begins to flow and the thickness the surface coating becomes inhomogeneous. Reinforced Wear on the inadequate with protection layered areas are the result.
Es bestand daher ein Bedarf an einer verschleißmin dernden Spachtelmasse, welche den geschilderten Nachteil nicht oder nur in verringertem Maße aufweist, dabei mög lichst aber ohne den Zusatz weiterer Stoffe, die das Ab riebverhalten des Spachtels ungünstig zu beeinflussen vermögen, auskommt.There was therefore a need for wear derd leveling compound, which has the disadvantage described not or only to a reduced extent, possible but without the addition of other substances that the Ab to adversely affect the friction behavior of the spatula assets, gets by.
Überraschenderweise wurde nun gefunden, daß mit einer Spachtelmasse, welche Siliciumdioxid eines eng definier ten Korndurchmessers enthält, auch geneigte, senkrechte oder verformte Flächen problemlos beaufschlagt werden können.Surprisingly, it has now been found that with a Leveling compound, which defines silica narrowly ten grain diameter, including inclined, vertical or deformed surfaces can be easily applied can.
Gegenstand der vorliegenden Erfindung ist daher eine verschleißmindernde Spachtelmasse auf der Grundlage von mineralischen Bestandteilen, einem Kunststoffmaterial auf Polyurethanbasis und Siliciumdioxid, wobei die Korn größe 5-50 µm beträgt.The present invention therefore relates to a wear reducing filler based on mineral components, a plastic material based on polyurethane and silicon dioxide, the grain size is 5-50 µm.
Vorzugsweise weisen die Siliciumdioxidteilchen einen Durchmesser von 5-25 µm, insbesondere von 10-20 µm auf.Preferably the silica particles have one Diameter of 5-25 microns, especially from 10-20 microns.
Die mineralischen Bestandteile bestehen vorzugsweise aus handelsüblichem Siliciumcarbid und/oder Korund. Siliciumcarbid und Korund werden vorzugsweise in einer Siebung nach FEPA von 24 und 70 verarbeitet.The mineral components preferably consist made of commercially available silicon carbide and / or corundum. Silicon carbide and corundum are preferably combined in one FEPA screening of 24 and 70 processed.
Als Polyurethankunststoffmaterial kommt vorzugsweise ein Polyglykolether-Diisocyanat-Polymer zum Einsatz, welches vorzugsweise 1-10%, insbesondere 2-5% freie Iso cyanatgruppen enthält.Preferably comes as the polyurethane plastic material a polyglycol ether diisocyanate polymer is used, which is preferably 1-10%, especially 2-5% free iso contains cyanate groups.
Siliciumdioxid der erfindungsgemäßen Korngröße kann nach bekannten Verfahren, wie beispielsweise der Flam menhydrolyse, erhalten werden.Silicon dioxide of the grain size according to the invention can by known methods, such as the Flam menhydrolysis.
Die Herstellung der erfindungsgemäßen Spachtelmassen gestaltet sich einfach. Hierzu werden die Einzelkompo nenten in der Regel durch deren Behandlung mittels bei spielsweise eines Kneters, einer Sand-mill oder einer Ein- oder Zweibarrenwalze vermischt.The production of the leveling compounds according to the invention is easy. For this, the single compo usually through their treatment by means of for example a kneader, a sand mill or one Single or two-bar roller mixed.
Als Verarbeitungstechniken kommen insbesondere Strei chen, Spritzen, Tauchen, Fluten oder Gießen infrage.Strei in particular come as processing techniques spraying, dipping, flooding or pouring.
Es können neben geneigten und senkrechten Flächen auch stark geformte wie z. B. gebogene Flächen mit der er findungsgemäßen Spachtelmasse gleichmäßig beaufschlagt werden, ohne daß dabei das aufgebrachte Material infolge seines Eigengewichtes zu verfließen beginnt und die Dicke der Oberflächenbeschichtung inhomogen wird. In addition to inclined and vertical surfaces, it can also strongly shaped such as B. curved surfaces with which he filler according to the invention evenly applied be without the material applied as a result of its own weight begins to flow and the Thickness of the surface coating becomes inhomogeneous.
Die auf die zu schützende Oberfläche aufzutragende Schicht besitzt üblicherweise eine Dicke von 2 bis 10 mm, welche jedoch je nach Einsatzzweck auch dicker oder dünner gestaltet werden kann.The one to be applied to the surface to be protected Layer usually has a thickness of 2 to 10 mm, which depending on the application, however, also thicker or can be made thinner.
Nach dem Auftrag härtet die erfindungsgemäße Spachtel masse innerhalb weniger Stunden bei Umgebungstemperatur aus.After application, the spatula according to the invention hardens mass within a few hours at ambient temperature out.
Neben ihrer problemlosen Verarbeitbarkeit auf nicht- ebenen Flächen zeichnet sich die erfindungsgemäße Spachtelmasse auch durch eine hohe Standzeit unter Bela stung aus. Beispielsweie haben Versuche ergeben, daß die Standzeit von 30%igem Chromguß nur etwa 25% und die von Chrom-Nickel-Molybdänstahl nur etwa 50% einer mit tels der erfindungsgemäßen Spachtelmasse erhaltenen Oberflächenbeschichtung beträgt.In addition to being easy to process on non- flat surfaces stands out according to the invention Filler also due to a long service life under Bela equipment. For example, tests have shown that the service life of 30% chromium cast is only about 25% and the of chrome-nickel-molybdenum steel only about 50% with one obtained by means of the filler according to the invention Surface coating is.
Das nachfolgende Beispiel erläutert die Erfindung nä her.The following example illustrates the invention forth.
100 Gewichtsteile eines durch Anlagerung von Ethy lenoxid an Trimethylolpropan hergestellten Polyglykol ethers vom Molekulargewicht 4030 werden nach einer Stunde Entwässerung bei 150° und 1 mm Hg mit 0,5% Buta diensulfon versetzt. Nach 30 Minuten Einwirkungszeit bei 150° hat sich der größte Teil des Butadiensulfons zer setzt. Zur Entfernung flüchtiger Bestandteile wird noch einmal kurz Vakuum angelegt bis die Schmelze blasenfrei geworden ist. Alsdann fügt man bei 80° 14 Gewichtsteile Toluylendiisocyanat unter fortwährendem Rühren hinzu und erhitzt zur Beendigung der Reaktion noch 1 Stunde bei gleicher Temperatur. Auf diese Weise wird ein Polygly koletherisocyanat mit etwa 3,2% freien Isocyanatgruppen erhalten.100 parts by weight of one by adding Ethy lenoxide on trimethylolpropane polyglycol ethers with a molecular weight of 4030 are according to a Hour drainage at 150 ° and 1 mm Hg with 0.5% buta added the sulfone. After 30 minutes of exposure to Most of the butadiene sulfone has decomposed at 150 ° puts. To remove volatile constituents is still vacuum once briefly until the melt is bubble-free has become. Then you add 14 parts by weight at 80 ° Toluene diisocyanate added with constant stirring and heated for 1 hour to complete the reaction same temperature. In this way, a polygly kolether isocyanate with about 3.2% free isocyanate groups receive.
Ein homogenes Gemisch aus Siliciumtetrachloriddampf, Wasserstoff und Luft wird aus einem Brenner in einem gekühlten Raum verbrannt. Die Teilchengröße und damit die spezifische Oberfläche des erhaltenen Siliciumdi oxids können durch Variation von Siliciumtetrachlorid konzentration, Inertgasmenge, Flammentemperatur und Ver weilzeit der Siliciumdioxidkeime in der Flamme beeinflußt werden.A homogeneous mixture of silicon tetrachloride vapor, Hydrogen and air become one burner in one chilled room burned. The particle size and therefore the specific surface of the silicon di obtained Oxides can be obtained by varying silicon tetrachloride concentration, amount of inert gas, flame temperature and ver because of the silicon dioxide nuclei in the flame to be influenced.
Das Gemisch aus 28 Gew.-% Siliciumcarbid der Siebung 24 nach FEPA, 20 Gew.-% Siliciumcarbid der Siebung 70 nach FEPA, 24 Gew.-% Korund der Siebung 24 nach FEPA und 20 Gew.-% Korund der Siebung 70 nach FEPA wird mittels ei nes Kneters, einer Sand-mill oder einer Ein- oder Zwei barrenwalze innerhalb von etwa 5 bis 7 Minuten innig vermischt. Darauf werden 7 Gew.-% des voranstehend erhal tenen Polyurethankunststoffmaterials zugefügt und innerhalb 2 bis 3 Minuten auf die gleiche Weise vermischt. Schließlich fügt man 1 Gew.-% Siliciumdioxid der Teil chengröße 10-20 µm hinzu und mischt kurz durch.The mixture of 28% by weight silicon carbide of sieve 24 according to FEPA, 20% by weight of silicon carbide after screening 70 FEPA, 24% by weight corundum of sieve 24 according to FEPA and 20 % By weight of corundum of the screening 70 according to FEPA is determined by means of an egg kneader, a sand mill or a one or two ingot roll intimately within about 5 to 7 minutes mixed. Then 7% by weight of the above are obtained added polyurethane plastic material and inside Mix in the same way for 2 to 3 minutes. Finally 1 part by weight of silicon dioxide is added to the part size 10-20 µm and mix briefly.
Die erhaltene Spachtelmasse ist unter Ausschluß von Luftfeuchtigkeit über längere Zeit stabil und gut ver arbeitbar. Nach dem Oberflächenauftrag mittels bei spielsweise einer der vorerwähnten Techniken härten die homogenen, nicht verfließenden Schichten bei 10° innerhalb etwa 20 Stunden, bei 23° innerhalb etwa 5 Stunden zu einer abriebfesten Beschichtung aus.The filler obtained is excluded from Humidity stable and well ver workable. After the surface application with for example, one of the aforementioned techniques harden the homogeneous, non-flowing layers at 10 ° within about 20 hours, at 23 ° within about 5 hours to one abrasion-resistant coating.
Claims (5)
7 Gew.-% Kunststoffmaterial auf Polyurethanbasis
1 Gew.-% Siliciumdioxidbesteht. 4. leveling compound according to one of claims 1 to 3, characterized in that it consists of 92 wt .-% mineral components
7% by weight plastic material based on polyurethane
There is 1% by weight of silica.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893931959 DE3931959C1 (en) | 1989-09-25 | 1989-09-25 | Spreading compsn. for protection of metallic equipment - comprises silicon carbide or corundum, polyurethane based resin and silicon di:oxide |
NL9001971A NL9001971A (en) | 1989-09-25 | 1990-09-06 | WEAR-REDUCING FILLING MASS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893931959 DE3931959C1 (en) | 1989-09-25 | 1989-09-25 | Spreading compsn. for protection of metallic equipment - comprises silicon carbide or corundum, polyurethane based resin and silicon di:oxide |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3931959C1 true DE3931959C1 (en) | 1991-03-07 |
Family
ID=6390137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893931959 Expired - Lifetime DE3931959C1 (en) | 1989-09-25 | 1989-09-25 | Spreading compsn. for protection of metallic equipment - comprises silicon carbide or corundum, polyurethane based resin and silicon di:oxide |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3931959C1 (en) |
NL (1) | NL9001971A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4226789A1 (en) * | 1992-08-13 | 1994-02-17 | Sigri Great Lakes Carbon Gmbh | Fiber-reinforced plastic roller with outer, wear-resistant, filler-containing plastic layer |
EP0878520A2 (en) * | 1997-05-12 | 1998-11-18 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Composition for refractory, pyrolitically ceramic forming coatings |
DE10247280A1 (en) * | 2002-10-10 | 2004-05-13 | SICcast Mineralguß GmbH & Co. KG | Composite material for repair and protection of metal surfaces comprises a binder and a filler consisting of silicon carbide plus a ceramic oxide with smaller round particles to increase the packing density |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3489711A (en) * | 1967-09-18 | 1970-01-13 | Battelle Development Corp | Oxidative polyurethanes with silicon carbide |
US4356037A (en) * | 1980-05-12 | 1982-10-26 | Novak Robert L | Abrasion resistant coating |
-
1989
- 1989-09-25 DE DE19893931959 patent/DE3931959C1/en not_active Expired - Lifetime
-
1990
- 1990-09-06 NL NL9001971A patent/NL9001971A/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3489711A (en) * | 1967-09-18 | 1970-01-13 | Battelle Development Corp | Oxidative polyurethanes with silicon carbide |
US4356037A (en) * | 1980-05-12 | 1982-10-26 | Novak Robert L | Abrasion resistant coating |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4226789A1 (en) * | 1992-08-13 | 1994-02-17 | Sigri Great Lakes Carbon Gmbh | Fiber-reinforced plastic roller with outer, wear-resistant, filler-containing plastic layer |
EP0878520A2 (en) * | 1997-05-12 | 1998-11-18 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Composition for refractory, pyrolitically ceramic forming coatings |
EP0878520A3 (en) * | 1997-05-12 | 1999-08-18 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Composition for refractory, pyrolitically ceramic forming coatings |
DE10247280A1 (en) * | 2002-10-10 | 2004-05-13 | SICcast Mineralguß GmbH & Co. KG | Composite material for repair and protection of metal surfaces comprises a binder and a filler consisting of silicon carbide plus a ceramic oxide with smaller round particles to increase the packing density |
DE10247280B4 (en) * | 2002-10-10 | 2004-09-09 | SICcast Mineralguß GmbH & Co. KG | Use of a silicon carbide composite |
Also Published As
Publication number | Publication date |
---|---|
NL9001971A (en) | 1991-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |