DE1080462B - Use of dry-ground mica flakes for the production of mica discs and mica strips - Google Patents
Use of dry-ground mica flakes for the production of mica discs and mica stripsInfo
- Publication number
- DE1080462B DE1080462B DEM42618A DEM0042618A DE1080462B DE 1080462 B DE1080462 B DE 1080462B DE M42618 A DEM42618 A DE M42618A DE M0042618 A DEM0042618 A DE M0042618A DE 1080462 B DE1080462 B DE 1080462B
- Authority
- DE
- Germany
- Prior art keywords
- mica
- flakes
- dry
- production
- ground
- 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.)
- Pending
Links
- 239000010445 mica Substances 0.000 title claims description 29
- 229910052618 mica group Inorganic materials 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 claims 1
- 229920002472 Starch Polymers 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001238 wet grinding Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/20—Mica; Vermiculite
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Inorganic Insulating Materials (AREA)
Description
Verwendung von trockengemahlenen Glimmerschüppchen zur Herstellung von Glimmerscheiben und Glimmerbändern Es ist bekannt, dünne Glimmerschüppchen aus kalziniertem Glimmer durch Behandlung in wäßrigen Lösungen von Säuren und Alkalien herzustellen.Use of dry-milled mica flakes for production of mica discs and mica tapes It is known to consist of thin flakes of mica calcined mica by treatment in aqueous solutions of acids and alkalis to manufacture.
Es treten große Schwierigkeiten auf, wenn man versucht, möglichst ,dünne Glimmerblättchen auf trockenem Wege herzustellen. Dünne Glimmerblättchen von möglichst großem Durchmesser (mehrere Millimeter) werden wegen ihrer Eigenschaft, aneinanderzuhaften, zur Herstellung von Glimmerscheiben und Glimmerbändern benutzt.There are great difficulties in trying to be as good as possible to produce thin mica flakes in a dry way. Thin mica flakes of the largest possible diameter (several millimeters) are due to their property, to stick together, used for the production of mica discs and mica tapes.
Die Glimmerbänder werden zur Isolierung von Spulenkörpern für Maschinen und Ankerwicklungen und ähnliche Zwecke benutzt. Die Glimmerscheiben können an Stelle von Kollektormikanit oder auch als Heiz-Mikanitteile für Elektrowärmegeräte verwendet werden.The mica tapes are used to insulate bobbins for machines and armature windings and similar purposes. The mica washers can be put in place Used by collector canite or as heating micanite parts for electrical heating devices will.
Nun werden zur Herstellung von Glimmerscheiben und Glimmerbändern erfindungsgemäß Mischungen aus submikroskopischem Glimmerstaub und Glimmerblättchen von mehr als 0,25 mm Durchmesser, vorzugsweise von 0,5 bis 2 mm Durchmesser, verwendet. Als zusätzliche Bindemittel eignen sich anorganische Stoffe, wie Wasserglas, Phosphate usw., -die mit dem submikroskopischen Glimmerstaub unlösliche Verbindungen geben.Now they are used to manufacture mica discs and mica tapes Mixtures of submicroscopic mica dust and mica flakes according to the invention of more than 0.25 mm in diameter, preferably from 0.5 to 2 mm in diameter, is used. Inorganic substances such as water glass and phosphates are suitable as additional binders etc., which give insoluble compounds with the submicroscopic mica dust.
Die Zerkleinerung des Glimmers zur Herstellung des Glimmerstaubes und der Glimmerblättchen erfolgt auf bekannte Weise in einer Schlagkreuzmühle mit Siebeinlagen, deren Sieblöcher 1,5 mm Durchmesser haben. Aus dem Mahlprodukt werden die Glimmerblättchen mit der gewünschten Blättchenstärke herausgesiebt. Das zur Mischung weiterhin notwendige feinste, staubförmige Glimmermehl wird dem Mahlprodukt durch Windsichtung entzogen. Bei der Naßvermahlung :stellt sich ein Mischungsverhältnis zwischen submikroskopischen Feinanteilen und Glimmerblättchen von selbst ein. Durch Kapillarwirkung des Wassers, die bekanntlich an kolloide Größen gebunden ist, tritt eine Aufspaltung vorzugsweise in kolloider Stärke ein. Werden diese Blättchen weitergemahlen, so entstehen die submikroskopischen Feinanteile, so daß in der Hauptsache bei der Naßvermahlung neben diesen feinsten Anteilen Blättchen kolloider Stärke auftreten. Die Feinanteile werden von den Blättchen kolloider Stärke adsorbiert und können aus dem getrockneten Pulver nicht abgesiebt werden. Sie sind daher der Beobachtung bis jetzt entgangen.The crushing of the mica to produce the mica dust and the mica flakes are carried out in a known manner in a cross beater mill Sieve inserts with sieve holes 1.5 mm in diameter. Become from the ground product sifted out the mica flakes with the desired flake thickness. That for Mixing further necessary finest, powdery mica flour becomes the ground product withdrawn by air separation. With wet grinding: there is a mixing ratio between submicroscopic fines and mica flakes. By Capillary action of the water, which is known to be bound to colloidal sizes, occurs a breakdown preferably in colloidal starch. If these leaves are ground further, this is how the submicroscopic fines arise, so that in the main at the Wet grinding occur in addition to these finest fractions of flakes of colloidal starch. The fine fractions are adsorbed by the flakes of colloidal starch and can cannot be sieved from the dried powder. You are therefore under observation escaped until now.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM42618A DE1080462B (en) | 1957-04-29 | 1957-04-29 | Use of dry-ground mica flakes for the production of mica discs and mica strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM42618A DE1080462B (en) | 1957-04-29 | 1957-04-29 | Use of dry-ground mica flakes for the production of mica discs and mica strips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1080462B true DE1080462B (en) | 1960-04-21 |
Family
ID=7304404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM42618A Pending DE1080462B (en) | 1957-04-29 | 1957-04-29 | Use of dry-ground mica flakes for the production of mica discs and mica strips |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1080462B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE897827C (en) * | 1936-06-18 | 1953-11-23 | Canadian Refractories Ltd | Soluble silicate binder |
| DE906196C (en) * | 1951-11-22 | 1954-03-11 | Sterchamolwerke G M B H | Process for the production of insulating bodies and compounds |
-
1957
- 1957-04-29 DE DEM42618A patent/DE1080462B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE897827C (en) * | 1936-06-18 | 1953-11-23 | Canadian Refractories Ltd | Soluble silicate binder |
| DE906196C (en) * | 1951-11-22 | 1954-03-11 | Sterchamolwerke G M B H | Process for the production of insulating bodies and compounds |
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