DE1036996B - Process for coating bare winding clamps or similar electrical machines - Google Patents
Process for coating bare winding clamps or similar electrical machinesInfo
- Publication number
- DE1036996B DE1036996B DES45764A DES0045764A DE1036996B DE 1036996 B DE1036996 B DE 1036996B DE S45764 A DES45764 A DE S45764A DE S0045764 A DES0045764 A DE S0045764A DE 1036996 B DE1036996 B DE 1036996B
- Authority
- DE
- Germany
- Prior art keywords
- mica
- electrophoresis
- clamps
- electrical machines
- layer
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 238000004804 winding Methods 0.000 title claims description 5
- 239000011248 coating agent Substances 0.000 title description 4
- 238000000576 coating method Methods 0.000 title description 4
- 239000010445 mica Substances 0.000 claims description 17
- 229910052618 mica group Inorganic materials 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 9
- 238000001962 electrophoresis Methods 0.000 claims description 8
- 239000004922 lacquer Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 239000002966 varnish Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 239000006185 dispersion Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003973 paint Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Bodies (AREA)
Description
Verfahren zum Überziehen von blanken Wicklungszwingen od. dgl. elektrischer Maschinen Die Erfindung bezieht sich auf ein Verfahren zum Überziehen. von blanken Wicklungszwingen oder dergleichen elektrischen. Maschinen mit einer die Stabisolation überlappenden Isolationsschicht.Method for coating bare winding clamps or the like. Electrical Machines The invention relates to a method of coating. of bare Winding clamps or the like electrical. Machines with one the rod insulation overlapping insulation layer.
Erfindungsgemäß werden die Zwingen bis über die Ränder der Stabisolation in eine Pülpe aus Glimmer getaucht und anschließend die Glimmerteilchen elektrophoretisch niedergeschlagen.According to the invention, the clamps are up over the edges of the rod insulation immersed in a pulp made of mica and then electrophoresed the mica particles dejected.
Bei der Herstellung von Glimmerpülpen wird dem Glimmer durch die Kalzination ein mehr oder weniger großer Anteil seines Kristallwassers entzogen, er wird dann gut zerkleinert und mit Wasser in Berührung gebracht. Dann lagert sich wieder an den frei gewordenen Stellen Wasser an, derart, daß die Oberfläche der Teilchen aktiviert wird und kolloidale Bindekräfte entstehen mit der Folge, daß sich die feinsten Teilchen fest aneinanderheften und auch gut mit der Unterlage abbinden, sobald nach der Bildung des elektrophoretischen Niederschlages das überflüssige Wasser zwischen den Teilen entfernt wird. Die Elektrophorese einer Glimmerpülpe liefert wesentlich bessere Erzeugnisse als die Elektrophorese anderer Stoffe. Das Verfahren gemäß der Erfindung soll an Hand der Fig. 1 bis. 3 der Zeichnung näher erläutert werden.In the production of mica pulps, the mica is obtained by calcination a more or less large part of its crystal water is withdrawn, it is then well crushed and brought into contact with water. Then it accumulates again the vacated areas water in such a way that the surface of the particles is activated and colloidal binding forces arise with the result that the finest particles Attach them firmly to each other and tie them off well with the underlay as soon as they are formed of the electrophoretic precipitate removes the excess water between the parts Will get removed. The electrophoresis of a mica pulp gives much better results Products other than the electrophoresis of other substances. The method according to the invention should be on the basis of Fig. 1 to. 3 of the drawing will be explained in more detail.
Die Stäbe 1 einer Stabisolation sind bis zu den Stellen 2 isoliert (Fig. 1 und 2). Sie sind durch Zwingen 3 in bekannter Weise verbunden. Die Zwingen werden bei der Elektrophorese bis zum Niveau NN in eine Glimmerpülpe 4 getaucht. Die Zwingen greifen dabei zwischen einen Kranz von Gegenelektroden 5. In verhältnismäßig kurzer Zeit nach Anlegen einer Gleichspannung zwischen der Stabwicklung und den Gegenelektroden ergibt sich ein Glimmerniederschlag 6, der gleichmäßig die Zwingen und die angrenzenden Stabteile bedeckt und von selbst bis 7 die Ränder der vorhandenen Isolation überlappt.The bars 1 of a bar insulation are insulated up to the points 2 (Figures 1 and 2). They are connected by forcing 3 in a known manner. The constraints are immersed in a mica pulp 4 during electrophoresis up to the NN level. The clamps grip between a ring of counter electrodes 5. In relatively a short time after applying a DC voltage between the rod winding and the Counter electrodes results in a mica deposit 6, which evenly the ferrules and covers the adjacent rod parts and by itself to 7 the edges of the existing ones Isolation overlaps.
Nach dem Herausziehen und Trocknen des Niederschlages kann dieser mit Lack od. dgl. imprägniert werden. Falls man befürchtet, daß der Überzug einzelne Stellen, z. B. schwer zugängliche einspringende Ecken, nicht bedeckt, kann das Elektrophoreseverfahren wiederholt werden. Da sich nun der Strom auf die nicht bedeckten Stellen konzentriert, werden diese im zweiten Gang mit vollkommener Sicherheit eingehüllt. Auf diese Weise erhält man eine besonders zuverlässige, durch den zweiten Gang verbesserte Isolation.After the precipitate has been pulled out and dried, it can be impregnated with varnish or the like. In case one is concerned that the coating will cause individual Places, e.g. B. hard-to-reach re-entrant corners, not covered, the electrophoresis process can be repeated. Since the current is now concentrated on the uncovered areas, these are enveloped with complete security in the second gear. In this way you get a particularly reliable insulation, which is improved by the second gear.
Um die Haftfestigkeit des Glimmers auf den. Zwingen zu erhöhen, kann man vor der Elektrophorese durch Tauchen, Spritzen. Streichen auch eine leitende, nicht durchgehärtete Lackschicht aufbringen, mit der sich dann die Glimmerschicht gut verbindet. Bei der nachfolgenden Härtung des Lackes erweicht dieser vorübergehend und verbessert dadurch die Bindung. Solche Grundschichten können aus härtbaren, beispielsweise mit Graphit, Aluminiumpulver u. dgl. pigmentierten Lacken hergestellt werden.To ensure that the mica adheres to the. Forcing to increase can before electrophoresis by dipping, spraying. Also delete a senior, Apply a non-hardened layer of lacquer, which then forms the mica layer connects well. During the subsequent hardening of the lacquer, it softens temporarily and thereby improves the bond. Such base layers can consist of curable, made for example with graphite, aluminum powder and the like pigmented paints will.
Fig.3 zeigt einen Schnitt durch eine solche Isolation. Auf der Zwinge sitzt eine Schicht 8 leitenden Lackes, darüber eine Schicht 9 aus Glimmerteilchen und über dieser eine Decklackschicht 10.3 shows a section through such an insulation. On the ferrule sits a layer 8 of conductive lacquer, over it a layer 9 of mica particles and over this a topcoat layer 10.
Eine erhöhte Haftfestigkeit der Glimmerschicht kann auch dadurch erhalten werden, daß der wässerigen Glimmersuspension unmittelbar ein in Wasser emulgierter Lack oder ein in Wasser dispergiertes Harz beigegeben wird und elektrophoretisch auch mit dem Glimmer niedergeschlagen wird. Mit Vorteil kann in solchen Fällen eine wässerige Silikonharzemulsion verwendet werden. Nach einer dem jeweiligen Lack oder Harz entsprechenden Wärmebehandlung erhält man Schichten, die neben der Bindung der Glimmerteilchen selbst noch die zusätzliche Bindekraft des Lackes oder Harzes aufweisen. Solche Schichten brauchen dann keiner weiteren Lacktränkung ausgesetzt zu werden.An increased adhesive strength of the mica layer can also be obtained as a result that the aqueous mica suspension immediately emulsified in water Paint or a resin dispersed in water is added and electrophoretically is also cast down with the mica. In such cases, a aqueous silicone resin emulsion can be used. According to the respective paint or Resin appropriate heat treatment gives you layers that are next to the bond the mica particles themselves still have the additional binding power of the lacquer or resin exhibit. Such layers then do not need to be exposed to any further impregnation of the lacquer to become.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES45764A DE1036996B (en) | 1955-09-28 | 1955-09-28 | Process for coating bare winding clamps or similar electrical machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES45764A DE1036996B (en) | 1955-09-28 | 1955-09-28 | Process for coating bare winding clamps or similar electrical machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1036996B true DE1036996B (en) | 1958-08-21 |
Family
ID=7485696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES45764A Pending DE1036996B (en) | 1955-09-28 | 1955-09-28 | Process for coating bare winding clamps or similar electrical machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1036996B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3123800A1 (en) * | 1981-05-27 | 1983-08-04 | Leningradskoe proizvodstvennoe elektromašinostroitel'noe obedinenie "Elektrosila" imeni S.M. Kirova, Leningrad | Bar winding of the stator of an electrical machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2400576A (en) * | 1942-03-28 | 1946-05-21 | Sigmund Corp | Deposition of rubber on the windings of magnetizable cores |
FR1093544A (en) * | 1953-11-05 | 1955-05-05 | Acec | Process for isolating sections of electrical machines and product to achieve it |
-
1955
- 1955-09-28 DE DES45764A patent/DE1036996B/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2400576A (en) * | 1942-03-28 | 1946-05-21 | Sigmund Corp | Deposition of rubber on the windings of magnetizable cores |
FR1093544A (en) * | 1953-11-05 | 1955-05-05 | Acec | Process for isolating sections of electrical machines and product to achieve it |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3123800A1 (en) * | 1981-05-27 | 1983-08-04 | Leningradskoe proizvodstvennoe elektromašinostroitel'noe obedinenie "Elektrosila" imeni S.M. Kirova, Leningrad | Bar winding of the stator of an electrical machine |
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