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DE888877C - Process for the production of insulating tape from foam - Google Patents

Process for the production of insulating tape from foam

Info

Publication number
DE888877C
DE888877C DEK11019A DEK0011019A DE888877C DE 888877 C DE888877 C DE 888877C DE K11019 A DEK11019 A DE K11019A DE K0011019 A DEK0011019 A DE K0011019A DE 888877 C DE888877 C DE 888877C
Authority
DE
Germany
Prior art keywords
foam
production
insulating tape
mold
tape
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
DEK11019A
Other languages
German (de)
Inventor
Carl Foettinger
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.)
KABELWERKE RHEYDT AKT GES
Original Assignee
KABELWERKE RHEYDT AKT GES
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 KABELWERKE RHEYDT AKT GES filed Critical KABELWERKE RHEYDT AKT GES
Priority to DEK11019A priority Critical patent/DE888877C/en
Application granted granted Critical
Publication of DE888877C publication Critical patent/DE888877C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

Es ist bekannt, Isolierbänder zur Herstellung von SchaumstoSisolationen in der Weise zu gewinnen, daß diese von einem Sehaumstoffblock furnierartig abgeschält werden. Der Nachteil dieses Verfahrens ist, daß notwendigerweise der Schnitt durc'h viele Schaumstoffbläschen geht und dadurch selbst bei sehr kleinen Zellen die Oberfläche des Bandes nicht glatt sein kann, was aber aus Gründen der MaB-- -hakigkeit und--Festigkeit beim Einsatz solcher Bänder zur Isolierung von Leitern, bei welchen es auf sehr genaue Einhaltung und Beibehaltung des Außendurchmessers, wie z. B. bei Feinkabeladern, ankommt, angestrebt werden muß. It is known, insulating tapes for the production of foam insulation to win in such a way that this peeled from a Sehaumstoffblock like veneer will. The disadvantage of this method is that the cut necessarily goes through a lot of foam bubbles and thus the surface even with very small cells of the tape can not be smooth, but this is for reasons of dimensionality and strength when using such tapes to insulate conductors, which are very difficult exact compliance and retention of the outer diameter, such as B. for fine cable cores, arrives, must be striven for.

Nach der Erfindung werden solche Bänder in der Weise hergestellt, daß der Ausgangsstoff in eine Pfannenform von Bandhöhe gebracht wird, in welcher der Füllraum in Banddicke spiralförmig ausgespart ist, und dann in bekannter Weise zum Schäumen gebracht wird. Durch dieses Verfahren erhält das Schaumstofftand allseitig eine glatte, nicht zerklüftete Oberfläche größter Maßhaltigkeit. According to the invention, such tapes are produced in such a way that that the starting material is brought into a pan shape of band height, in which the filling space is cut out in the form of a spiral in the thickness of the band, and then in a known manner is made to foam. This process gives the foam stand on all sides a smooth, not fissured surface of the greatest dimensional accuracy.

Um das Auslösen des Bandes aus der Spiralform zu erleichtern, kann diese so.hergestellt werden, daß sowohl im Formenunterteil als auch im Oberteil eine Spiralnut ausgefräst wird, in welche ein Abstandhalter z. B:- aus V2A-Stahl hineingestellt werden kann.To facilitate the release of the tape from the spiral shape, can these are manufactured so that both in the lower part of the mold and in the upper part a spiral groove is milled into which a spacer z. B: - made of V2A steel can be placed inside.

In der Zeichnung stellt dar: a das Unterteil der Form, b den senkrecht 'hineingestellten Abstandhalter, c das Oberteil der Form mit der Aufnahmenut für den Abstandhalter, d eine Ventilleitung, e den Einlaß für den Wirkstoff. In the drawing shows: a the lower part of the mold, b the vertical 'inserted spacers, c the upper part of the mold with the receiving groove for the spacer, d a valve line, e the inlet for the active ingredient.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Isolierband -aus Schaumstoff, dadurch gekennzeichnet, daß -der Ausgangsstoff in eine Form eingefüllt wird, deren beide Hälften eine spiralförmige Nut aufweisen, welche zur Führung des senkrecht stehenden Abstandhalters z. B. aus V2A-Stahl dient, und dann in bekannter Weise geschäumt wird. PATENT CLAIM: Process for the production of insulating tape -from foam, characterized in that -the starting material is poured into a form whose both halves have a spiral groove, which is used to guide the perpendicular standing spacer z. B. is made of V2A steel, and then in a known manner is foamed.
DEK11019A 1951-08-17 1951-08-17 Process for the production of insulating tape from foam Expired DE888877C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK11019A DE888877C (en) 1951-08-17 1951-08-17 Process for the production of insulating tape from foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK11019A DE888877C (en) 1951-08-17 1951-08-17 Process for the production of insulating tape from foam

Publications (1)

Publication Number Publication Date
DE888877C true DE888877C (en) 1953-09-07

Family

ID=7213146

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK11019A Expired DE888877C (en) 1951-08-17 1951-08-17 Process for the production of insulating tape from foam

Country Status (1)

Country Link
DE (1) DE888877C (en)

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