DE1479428A1 - Method for upholstering devices cast in cast synthetic resin - Google Patents
Method for upholstering devices cast in cast synthetic resinInfo
- Publication number
- DE1479428A1 DE1479428A1 DE19651479428 DE1479428A DE1479428A1 DE 1479428 A1 DE1479428 A1 DE 1479428A1 DE 19651479428 DE19651479428 DE 19651479428 DE 1479428 A DE1479428 A DE 1479428A DE 1479428 A1 DE1479428 A1 DE 1479428A1
- Authority
- DE
- Germany
- Prior art keywords
- synthetic resin
- cast
- upholstery
- devices
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/34—Applying different liquids or other fluent materials simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/005—Compensating volume or shape change during moulding, in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/08—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3406—Components, e.g. resistors
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
Verfahren aun Polstern von in verfdLeßbarem Kunstharz eineefcossenen Geräten Das BingieBen gröBerer Metallteile in vergießbares Kunstharz, welche einer elektrischen Beanspruchung unterliegen, bereitet wegen der verschiedenen Ausdehnungskoeffisienten zwischen Harz und Eingußteil und des Polymerisationsschwundes des Harzes häutig erhebliche Schwierigkeiten. Die Aufgabe, dadurch entstehende Risse und BrUche im Harz su vermeiden, wird in herkömmlicher Weise dadurch gelöst, daß die einzugieß@nden Teile mit verachiedensten volumelastischen Werkstoffen gepolstert werden, un ein Schrumpfen des Harzumgusses ohne schädliche Wirkung zu ermöglichen. Um ein Eindringen des Harzes in die Poren oder Kapillaren dieser Polsterung zu vermeiden, wird auf diese ein abdichtender Belag aufgebracht und schließlich dieser Belag noch mit einer leitenden oder halbleitenden Schicht, beispielsweise aus Graphit, versehen, damit er elektrisch nicht beansprucht wird. Das Aufbringen dieser Polsterung, Abdichtung und Abschirmung ist jedoch zeitraubend und kostspielig. Method of upholstering a resin encapsulated in edible resin Devices The casting of larger metal parts in castable synthetic resin, which is a subject to electrical stress, prepares because of the different expansion coefficients between the resin and the sprue and the polymerisation shrinkage of the resin considerable difficulties. The task of the resulting cracks and breaks in the Resin avoid su, is solved in the conventional manner that the pouring in Parts are upholstered with various volumetric elastic materials, and one To allow shrinking of the resin encapsulation without damaging effect. To an intrusion To avoid the resin getting into the pores or capillaries this padding will be on this applied a sealing covering and finally this covering still with a conductive or semiconducting layer, for example made of graphite, provided with it it is not electrically stressed. Applying this padding, waterproofing however, shielding is time consuming and expensive.
Nun lot ein Gießharzstromwandler bekannt, dessen Eisenkern bsw. Wicklung nit einea Überzug aus vernetzendem, elastischen oder kompressiblem Werkstoff versehen und mit Gießharz umhfillt ist, dessen thermischer Ausdehnungskoeffisient kleiner lot als der des elastischen Werkstoffes. Auch bei dieses Stromwandler ist noch immer das Polstern, Abschirmen und Vergießen in getrennten Arbeitsgängen notwendig, die entsprechende Kosten verursachen.Now solder a cast resin current transformer known whose iron core bsw. Winding not provided with a cover made of cross-linking, elastic or compressible material and is encased with casting resin, the coefficient of thermal expansion of which is smaller lot than that of the elastic material. Also with this current transformer is still the upholstery, shielding and potting are necessary in separate operations cause corresponding costs.
Auch ein anderes, bekanntes Polsterverfahren mit Kunststoffchaux beruht auf demselben Prinsip.Another well-known upholstery process is based on plastic chaux on the same prinsip.
Be wird daher, us die genannten Nachteile zu vermeiden, vorgeschlagen, die vorliegende Aufgabe durch ein Verfahren zum Polatern von in vergieBbarem Kunotharz eingegossenen Geräten, insbesondere elektrischen Strom führenden Metallteilen, bei denen die eingegossenen Tells zunächst mit einem Überzug aus elastischen, gegebenenfalls kompressiblen Werkstoffen versehen sind, der gegebenenfalls abdichtende Belage und/oder leitende oder halbleitende Schichten aufweist, auf welche ein UmguB aus vergießbarem Kunstharz aufgebracht wird, su lösen. Gemäß der Erfindung wird auf die einzubettenden Tells ein spritzfähiges Kunstharz susammen mit einem achäusenden Treibmittel und verschiedenen, die Forderung nach Festigkeit und Elastizität ertUllenden Komponenten, wie Härter, Flexibilisatoren und Besohleuniger, aufgespritzt, nach Aushärten der dadurch entstehenden Polsterung ein flexibilisiertes, vergießbares Kunstharz auf diese Polsterung und darüber ein kunstharzgebundener Leitlack aufgetragen. Dabei kann das Aufspritzen beispielsweise mit einer handelsUblichen Mehrkomponenten-Dosier-Spritseinrichtung geschehen. Das auf das aufgeschäumte Kunsthars als Deckschicht aufgebrachte flexibilisierte Harz wird dann in der Regel ohne 8chEuEenae8 Treibmittel verwendet.It is therefore proposed to avoid the disadvantages mentioned, the task at hand by a method for polishing Kunotharz in pourable resin cast-in devices, in particular metal parts carrying electrical current which the cast-in Tells initially with a coating of elastic, if necessary compressible materials are provided, the possibly sealing coverings and / or Has conductive or semiconductive layers on which a castable coating Resin is applied, see below. According to the invention, the to be embedded Tells an injectable synthetic resin together with a spraying propellant and various components that meet the requirements for strength and elasticity, such as hardeners, flexibilizers and accelerators, sprayed on after the hardening the resulting upholstery is made of a flexible, castable synthetic resin this padding and a synthetic resin-bonded conductive varnish applied over it. Included For example, spraying can be done with a commercially available multi-component dosing spray device happen. The flexibilized layer applied to the foamed synthetic resin as a top layer Resin will then usually used without 8chEuEenae8 propellants.
Der Vorteil diesels Verfahrena liegt vor allem darin, daB keine voneinander getremnt vorsunehmenden Arbeitagänge sus Postera, Dichten und Absohir » en mehr notwendig sind, sondern daß ies durch einen zuaammenhangenden Arbeitagang mittela ein Gerätes vorgenommen werden kann. Ein weiterer Vorteil ergibt sich dann, wenn das vergießbare Kunsthars und das Treibmittel, sowie die übrigen Komponenten so verapritst werden, daß sie sich erst im Spritsstrahl mischen, weil dann ein mogliehee UnbraueBbarwerven der Spritseinrichtung duroh vorzeitig an-oder aushärtendes Gießharz vermieden wird.The main advantage of this method lies in the fact that none of them are mutually exclusive separately undertaking work sessions sus postera, poetry and absohir »s more are necessary, but that this is done by means of a coherent course of work a device can be made. Another advantage arises when the castable synthetic resin and the propellant, as well as the other components as above be verapritst that they first mix in the spray, because then a possible Unbearable nerves of the spraying device due to cast resin hardening or hardening prematurely is avoided.
3Seiten Beschreibung 1 Patentanspruch 3 pages description 1 claim
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL0051104 | 1965-07-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1479428A1 true DE1479428A1 (en) | 1969-07-10 |
DE1479428B2 DE1479428B2 (en) | 1973-07-19 |
DE1479428C3 DE1479428C3 (en) | 1975-09-25 |
Family
ID=7273850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19651479428 Expired DE1479428C3 (en) | 1965-07-12 | 1965-07-12 | Method for wrapping devices |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1479428C3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2541670A1 (en) * | 1974-09-19 | 1976-04-01 | Matsushita Electric Ind Co Ltd | REEL WITH RESIN PACKING |
DE3741032A1 (en) * | 1987-12-03 | 1989-06-15 | Mitsubishi Electric Corp | HIGH VOLTAGE TRANSFORMER |
DE4104868A1 (en) * | 1991-02-17 | 1992-08-20 | Moderne Maschinen Apparate Wer | ISOLATED WINDING AND METHOD AND SEMI-FINISHED MATERIAL FOR THEIR MANUFACTURE |
-
1965
- 1965-07-12 DE DE19651479428 patent/DE1479428C3/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2541670A1 (en) * | 1974-09-19 | 1976-04-01 | Matsushita Electric Ind Co Ltd | REEL WITH RESIN PACKING |
DE3741032A1 (en) * | 1987-12-03 | 1989-06-15 | Mitsubishi Electric Corp | HIGH VOLTAGE TRANSFORMER |
DE4104868A1 (en) * | 1991-02-17 | 1992-08-20 | Moderne Maschinen Apparate Wer | ISOLATED WINDING AND METHOD AND SEMI-FINISHED MATERIAL FOR THEIR MANUFACTURE |
Also Published As
Publication number | Publication date |
---|---|
DE1479428B2 (en) | 1973-07-19 |
DE1479428C3 (en) | 1975-09-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3034579C2 (en) | High voltage outdoor plastic insulator and process for its manufacture | |
EP0573795A2 (en) | Method for fastening the winding heads of electric machines and means for implementing the method | |
DE1056221B (en) | Tensile and watertight introduction of a portable telecommunication cable into a connector housing | |
DE1479428A1 (en) | Method for upholstering devices cast in cast synthetic resin | |
DE1120003B (en) | Cast-resin-insulated electrical transducer, implementation or the like. | |
DE2816556A1 (en) | CABLE JOINT, METHOD FOR MAKING A CABLE CONNECTION IN HIGH-VOLTAGE CABLES AND A KIT FOR MAKING SUCH A CABLE CONNECTION | |
DE1463783C3 (en) | Corona protection arrangement at the slot exit of the stator windings of electrical machines | |
DE890201C (en) | Hose made of swellable substances for binding isolated electrical lines | |
DE2255212A1 (en) | Resin potting of oil-impregnated electrical components - using cold-setting polyurethane resins without vacuum | |
DE1765452U (en) | ELECTRIC CABLE WITH AN OUTER SHEATH MADE OF PLASTIC MADE OF INJECTION METHOD. | |
DE3522091A1 (en) | Hybrid circuit with envelope | |
DE1065910B (en) | End termination for insulated high voltage conductors | |
DE1270147B (en) | Method for applying insulating coatings | |
DE899960C (en) | Movable electrical connection cable for large portable devices | |
DE2944120C2 (en) | Elastic control element for sets of electrical cables and a method for producing such a control element | |
AT222741B (en) | Method of applying a coating of uniform penetrability | |
AT216198B (en) | Tendon and method of prestressing concrete and method of making it | |
DE1061430B (en) | transformer | |
DE2429119C3 (en) | Method for mechanical fixing and impregnation of the winding and filling of the winding cavities of the stator of an electrical machine | |
DE657443C (en) | Heavy-duty woven electrical resistor | |
DE1514231A1 (en) | Electrical winding encased with thermosetting insulating compound, in particular high-voltage winding for voltage converters, and method for producing such a winding | |
DE1188687B (en) | Electrical, insulated conductor that is partially embedded in a conductive body with a potential different from the conductor | |
DE764407C (en) | Process for applying sleeves made of hardenable or thermoplastic masses by spraying or pressing onto metal shafts for electrical apparatus or similar, in particular elongated bodies with different expansion coefficients | |
AT226300B (en) | Method for anchoring a longitudinally and transversely armored cable laid in a cable duct in the vicinity of a cable connection point | |
DE859771C (en) | Termination of rubber lines or cables |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |