GB965807A - Method of encasing electrical units and assemblies with one or more protruding contacts - Google Patents

Method of encasing electrical units and assemblies with one or more protruding contacts

Info

Publication number
GB965807A
GB965807A GB394462A GB394462A GB965807A GB 965807 A GB965807 A GB 965807A GB 394462 A GB394462 A GB 394462A GB 394462 A GB394462 A GB 394462A GB 965807 A GB965807 A GB 965807A
Authority
GB
United Kingdom
Prior art keywords
coated
lead
resin
thermosetting
thermoplastic 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
Application number
GB394462A
Inventor
Peter Paul Grad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerovox Corp
Original Assignee
Aerovox Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aerovox Corp filed Critical Aerovox Corp
Priority to GB394462A priority Critical patent/GB965807A/en
Publication of GB965807A publication Critical patent/GB965807A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/065—Insulating conductors with lacquers or enamels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/02—Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistors with envelope or housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Insulating Of Coils (AREA)

Abstract

A plastic coated electrical device, the electrical leads of which protrude from its opposite ends, is prepared by applying substantially to the entire length, other than the root end, of at least one of the leads a liquid coating of thermoplastic resin compound or hydrocarbon wax of relatively low melting point or flow point, thereupon dipping the entire surface of said lead and the entire surface of the device other than the opposite lead into a liquid bath of thermosetting resin, thermosettable at a temperature above the flow temperature of the thermoplastic resin, removing the coated device from the bath, and thereupon heating the device to not less than the flow temperature of the thermoplastic resin and well below the thermosetting temperature with the lead that had been coated therewith extending downwards, whereby the thermoplastic resin will flow downwards and thereby clean the lead of both the thermoplastic undercoat and the thermosetting overcoat thereon. The device may be a resistor, capacitor, inductance coil, rectifier, transistor or other insulation coated unit with one or more protruding leads, prongs or contact points. The thermoplastic material may be of low molecular weight polyethylene, a mixture of low molecular weight polyethylene with a hydrocarbon wax, a polyamide, or a wax. The thermosetting resin used may be an epoxy resin or a mixture of a polyester resin and styrene. The composition may also include a mixture of metaphenylene diamine and dimethylaniline, fillers such as clay, mica dust, aluminium silicate, and asbestos powder, and pigments such as iron oxide. A peroxide catalyst may also be present. The coated device is finally cured by heating.
GB394462A 1962-02-01 1962-02-01 Method of encasing electrical units and assemblies with one or more protruding contacts Expired GB965807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB394462A GB965807A (en) 1962-02-01 1962-02-01 Method of encasing electrical units and assemblies with one or more protruding contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB394462A GB965807A (en) 1962-02-01 1962-02-01 Method of encasing electrical units and assemblies with one or more protruding contacts

Publications (1)

Publication Number Publication Date
GB965807A true GB965807A (en) 1964-08-06

Family

ID=9767820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB394462A Expired GB965807A (en) 1962-02-01 1962-02-01 Method of encasing electrical units and assemblies with one or more protruding contacts

Country Status (1)

Country Link
GB (1) GB965807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146267A (en) * 1983-08-31 1985-04-17 Colin Victor Campbell A method of, and a substance for applying a layer to a surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146267A (en) * 1983-08-31 1985-04-17 Colin Victor Campbell A method of, and a substance for applying a layer to a surface

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