EP0210652B1 - Elément de protection de surfaces partielles de pièces à usiner - Google Patents

Elément de protection de surfaces partielles de pièces à usiner Download PDF

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Publication number
EP0210652B1
EP0210652B1 EP86110483A EP86110483A EP0210652B1 EP 0210652 B1 EP0210652 B1 EP 0210652B1 EP 86110483 A EP86110483 A EP 86110483A EP 86110483 A EP86110483 A EP 86110483A EP 0210652 B1 EP0210652 B1 EP 0210652B1
Authority
EP
European Patent Office
Prior art keywords
protective
protecting element
treated
partial surfaces
work pieces
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 - Lifetime
Application number
EP86110483A
Other languages
German (de)
English (en)
Other versions
EP0210652A3 (en
EP0210652A2 (fr
Inventor
Achim Dipl.-Ing. Daume
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT86110483T priority Critical patent/ATE63882T1/de
Publication of EP0210652A2 publication Critical patent/EP0210652A2/fr
Publication of EP0210652A3 publication Critical patent/EP0210652A3/de
Application granted granted Critical
Publication of EP0210652B1 publication Critical patent/EP0210652B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
    • B65D59/02—Plugs

Definitions

  • the invention relates to a protective element for covering partial areas of a workpiece to be machined, consisting of a plastically deformable material, for example graphite, which is temperature-resistant up to at least 1000 ° C.
  • end caps To protect the inner surface of pipes, the ends of which are threaded, it is known to use end caps.
  • the caps protect the inner jacket of a pipe against corrosion and at the same time the threads against damage due to mechanical effects.
  • An exemplary embodiment is shown in DE-A-2 939 383.
  • the protective material is an elastomeric material which does not lose its shape through use. A protective cap is therefore not used up, but can be used again after pulling it off.
  • the elastomeric material can be provided with a steel casing.
  • a protective element that consists of a material that is temperature-resistant and plastically deformable at least up to 1000 ° C.
  • Graphite is preferably suitable as the protective material.
  • Such an element is described in DE-OS 33 15 894.
  • it has proven difficult to press a thread with a high or long element in relation to its diameter. -
  • a certain limit for the ratio of element height to element diameter (H / D) must be observed. This in turn means the production of protective elements of different wall thicknesses for threads of different lengths.
  • the invention is based on the object to remedy this and to form a protective element according to the generic term so that even with a large ratio of thread length to diameter, pressing is possible without a high cost of materials.
  • the solution according to the invention is characterized in that the deformable material is provided with a metal reinforcement and encloses it in the form of a jacket.
  • the reinforcement can be both tubular or annular, the deformable protective material being limited to the area of the ends of the metal reinforcement in the form of outer or inner rings.
  • Steel is particularly well suited as a material for the metal reinforcement, which in particular allows the protective elements to be processed in an automatic machine or which enables the protective elements to be pressed in automatically in the first place.
  • the arrangement of the protective material, for example graphite, in the form of rings saves a considerable amount of material without fear of the penetration of liquid material, such as zinc and the like, into a thread to be protected.
  • liquid material such as zinc and the like
  • the formation of a protective element in the form of a tubular steel core with an outer or inner film made of protective material has also been found to be effective.
  • the tubular protective element is simply pressed into a threaded bore or pushed over an external thread, and a part of the protective element can protrude outwards beyond the threaded end. Installation is both extremely simple and suitable for different thread depths and inexpensive to manufacture thanks to the small amount of protective material.
  • Rings 2 and 3 made of graphite are attached to the outer circumference of a tubular reinforcement 1 (FIG. 1).
  • the tube 1 with its ring elements 2, 3 is pressed into the threaded bore 4 of a workpiece 5, as shown in FIG. 2.
  • FIG. 3 A further embodiment of a protective element is shown in FIG. 3. It consists of a pipe section 1 with a film 6 of protective material, for example graphite, covering the outer circumference. This element can also be pressed into a threaded bore 7 of a workpiece 8, similar to FIG. 2. 4 is a blind hole into which the element with the film 6 is pressed until the inner end of the blind hole is reached. The upper end of the protective element can protrude from the workpiece.
  • a film 6 of protective material for example graphite
  • a workpiece 9 provided with a peg-shaped external thread is enclosed by a protective element, the tubular reinforcement 1 of which is equipped with rings made of graphite.
  • the rings 2, 3 are arranged on the inner circumference of the reinforcement and again in the region of the ends.
  • the protective element according to FIG. 6 can be processed with a tubular reinforcement 1 and an inner film 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Chemically Coating (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Coating With Molten Metal (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Forging (AREA)
  • Fuses (AREA)

Claims (3)

  1. Eléments protecteurs pour couvrir des sections d'une pièce à usiner, constitués d'un matériau résistant à une chaleur d'au moins 1000°C, possédant une déformabilité plastique, par exemple le graphite, sont caractérisés par le fait que le matériau déformable (2, 6) est muni d'une armure en métal (1) et enveloppe cette dernière comme un manteau.
  2. Elément protecteur selon revendication 1, caractérisé par le fait que l'armure a la forme d'un tube ou d'un anneau.
  3. Elément protecteur selon revendication 1 et/ou 2, caractérisé par le fait que le matériau protecteur déformable est limité, sous forme d'anneau extérieur ou intérieur (2), au domaine des bouts de l'armure en métal (1).
EP86110483A 1985-08-02 1986-07-29 Elément de protection de surfaces partielles de pièces à usiner Expired - Lifetime EP0210652B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110483T ATE63882T1 (de) 1985-08-02 1986-07-29 Schutzelement zum abdecken von teilbereichen an zu bearbeitenden werkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853527703 DE3527703A1 (de) 1985-08-02 1985-08-02 Schutzelement zum abdecken von teilbereichen an zu bearbeitenden werkstuecken
DE3527703 1985-08-02

Publications (3)

Publication Number Publication Date
EP0210652A2 EP0210652A2 (fr) 1987-02-04
EP0210652A3 EP0210652A3 (en) 1988-08-03
EP0210652B1 true EP0210652B1 (fr) 1991-05-29

Family

ID=6277464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110483A Expired - Lifetime EP0210652B1 (fr) 1985-08-02 1986-07-29 Elément de protection de surfaces partielles de pièces à usiner

Country Status (3)

Country Link
EP (1) EP0210652B1 (fr)
AT (1) ATE63882T1 (fr)
DE (1) DE3527703A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3912666A1 (de) * 1989-04-18 1990-10-25 Bayerische Motoren Werke Ag Abdeckvorrichtung gegen zinkbeschichten von flaechenteilen an bad-feuerverzinkten bauteilen aus eisenwerkstoff
DE4315478A1 (de) * 1993-05-10 1994-11-17 Hermann Klein Zinkabschlußhülse für Gewindemuffen, Gewindenippel, Schraubenbolzen, Muttergewindelöcher und Bohrungen
DE4338459C2 (de) * 1993-11-11 2003-05-08 Sgl Carbon Ag Wärmeisolierender Hohlzylinder
DE202005014390U1 (de) * 2005-09-15 2007-02-01 Durferrit Gmbh Vorrichtung zur Isolierung eines Oberflächenbereichs eines Werkstücks

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS160910B1 (fr) * 1973-01-29 1975-05-04
DE2939383A1 (de) * 1979-09-28 1981-04-02 Dreyfuß GmbH, 3111 Eimke Vorrichtung zum schutz von hohlraeumen
DE8113177U1 (de) * 1981-04-28 1981-08-13 Mannesmann AG, 4000 Düsseldorf Schutzkappe fuer Gewinderohre
DE3315894C2 (de) * 1983-05-02 1986-07-03 Achim Dipl.-Ing. 3006 Burgwedel Daume Schutzelement für zu bearbeitende Werkstücke
DE8312888U1 (de) * 1983-05-02 1984-08-09 Daume, Achim, Dipl.-Ing., 3006 Burgwedel Schutzelement fuer zu bearbeitende Werkstuecke

Also Published As

Publication number Publication date
ATE63882T1 (de) 1991-06-15
EP0210652A3 (en) 1988-08-03
DE3527703C2 (fr) 1987-08-13
DE3527703A1 (de) 1987-02-12
EP0210652A2 (fr) 1987-02-04

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