DE10013736B4 - Method for the compensation of screwdriver blades - Google Patents

Method for the compensation of screwdriver blades Download PDF

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Publication number
DE10013736B4
DE10013736B4 DE10013736A DE10013736A DE10013736B4 DE 10013736 B4 DE10013736 B4 DE 10013736B4 DE 10013736 A DE10013736 A DE 10013736A DE 10013736 A DE10013736 A DE 10013736A DE 10013736 B4 DE10013736 B4 DE 10013736B4
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Germany
Prior art keywords
layer
nickel
galvanic
screwdriver
blades
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Expired - Fee Related
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DE10013736A
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German (de)
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DE10013736A1 (en
Inventor
Jürgen Schulte
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Schuermann & Co KG GmbH
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Schuermann & Co KG GmbH
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Priority to DE20022442U priority Critical patent/DE20022442U1/en
Priority to DE10013736A priority patent/DE10013736B4/en
Publication of DE10013736A1 publication Critical patent/DE10013736A1/en
Application granted granted Critical
Publication of DE10013736B4 publication Critical patent/DE10013736B4/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

Verfahren zur Oberflächenvergütung von Schraubendreherklingen mit folgenden Verfahrensschritten:
a) Galvanisches Vernickeln der rohen Klinge mit einer Schichtdicke von 6 bis 10 Mikrometer,
b) Sandstrahlen zum Aufrauhen der Nickelschicht,
c) Galvanisches Aktivieren der aufgerauhten Nickelschicht, und
d) Galvanisches Verchromen der Nickelschicht mit einer Schichtdicke von 0,3 Mikrometer.Method for surface treatment of screwdriver blades with the following method steps:
a) Galvanic nickel plating of the raw blade with a layer thickness of 6 to 10 micrometers,
b) sandblasting to roughen the nickel layer,
c) galvanic activation of the roughened nickel layer, and
d) Galvanic chrome plating of the nickel layer with a layer thickness of 0.3 microns.

Description

Die Erfindung betrifft ein Verfahren zur Vergütung von Schraubendreherklingen sowie Schraubendreher mit derart vergüteten Klingen.The The invention relates to a method for the compensation of screwdriver blades as well as screwdrivers with such tempered blades.

Schraubendreher bestehen bekanntermaßen aus einem Griff, einem Schaft und einer am vorderen Ende des Schaftes gebildeten Klinge in Form einer Flachklinge für Schlitzschrauben, Kreuzklinge für Kreuzschlitzschrauben, Sechskantklinge für Innensechskantschrauben oder einer sonstigen Klingenform.screwdriver are known to exist from a handle, a shaft and one at the front end of the shaft formed blade in the form of a flat blade for slotted screws, cross blade for Phillips screws, Hexagonal blade for Hexagon socket screws or other blade shape.

Eine Oberflächenbehandlung von Schraubendreherklingen erfolgt bekanntermaßen durch Vernickeln bzw. Verchromen.A surface treatment Screwdriver blades are known to be made by nickel plating or chrome plating.

Beispielsweise ist aus der DE 93 06 646 U1 zu entnehmen, daß Werkzeugklingen aus Stahl üblicherweise durch einen galvanischen Überzug gegen Verschleiß und Korrosion geschützt werden. Dabei besteht der Überzug aus einer dickeren Nickelzwischenschicht und einer diese überdeckenden Chromschutzschicht.For example, is from the DE 93 06 646 U1 can be seen that steel tool blades are usually protected by a galvanic coating against wear and corrosion. In this case, the coating consists of a thicker nickel interlayer and a covering this chrome protective layer.

Aus der EP 0 608 711 A1 ist das Verchromen einer Schraubendreherklinge bekannt, wobei die rohe Klinge vor dem Aufbringen der Chromschicht zum Aufrauen der Werkzeugstahloberfläche sandgestrahlt wird und dann diese sandgestrahlte Werkzeugstahloberfläche galvanisch mit einer Chrombeschichtung versehen wird.From the EP 0 608 711 A1 For example, chromium plating of a screwdriver blade is known, wherein the green blade is sandblasted prior to application of the chromium layer for roughening the tool steel surface, and then this chromium-plated tool steel surface is electroplated with a chrome plating.

Aufgabe der Erfindung ist es, ein Verfahren zur Oberflächenvergütung von Schraubendreherklingen zu schaffen, das eine weitere Verbesserung der Abriebfestigkeit und der Korro sionsschutzwerte ergibt, ohne daß die Maßhaltigkeit der Schraubendreherklinge beeinträchtigt wird.task The invention is a method for surface treatment of screwdriver blades to create that further improve the abrasion resistance and the corrosion protection results without the dimensional accuracy of the screwdriver blade impaired becomes.

Diese Aufgabe wird gemäß der Erfindung durch das im Patentanspruch angegebene Verfahren gelöst.These Task is carried out according to the invention solved the specified in the claim method.

Das Aktivieren einer Nickelschicht vor einer Glanz- oder Hartverchromung ist aus dem Buch von R. Weiner "Die galvanische Verchromung", Eugen G. Leuze Verlag, Saulgau 1974, Seiten 87 bis 91, 105 und 106, sowie aus der DE 32 20 723 A1 an sich bekannt.The activation of a nickel layer before a bright or hard chrome plating is from the book by R. Weiner "The galvanic chrome plating", Eugen G. Leuze Verlag, Saulgau 1974, pages 87 to 91, 105 and 106, as well as from DE 32 20 723 A1 known in itself.

Das erfindungsgemäße Verfahren umfasst:

  • a) Die bearbeiteten und glatt geschliffenen und somit von eventuellen Zunderanhaftungen befreiten Klingen werden zunächst galvanisch mit einer Nickelschicht überzogen. Diese Nickelschicht hat eine Dicke von 6 bis 10 Mikrometer.
  • b) Anschließend wird die Nickelschicht mit einem Sandstrahlverfahren aufgerauht.
  • c) Anschließend wird die so aufgerauhte bzw. mattierte Nickelschicht galvanisch aktiviert.
  • d) Abschließend wird die so vorbehandelte Klinge mit einer dünnen Chromschicht galvanisch verchromt. Die Schichtdicke beträgt 0,3 Mikrometer.
The method according to the invention comprises:
  • a) The machined and smoothed blades, thus freed from any scale deposits, are first galvanized with a layer of nickel. This nickel layer has a thickness of 6 to 10 microns.
  • b) Subsequently, the nickel layer is roughened by a sand blast method.
  • c) The roughened or matted nickel layer is then galvanically activated.
  • d) Finally, the pretreated blade is electroplated with a thin chromium layer. The layer thickness is 0.3 microns.

Die nach diesem Verfahren oberflächenvergüteten Schraubendreherklingen zeichnen sich durch erhöhte Abriebfestigkeit im Gebrauch sowie erhöhte Korrosionsfestigkeit aus.The according to this method surface-tempered screwdriver blades are characterized by increased Abrasion resistance in use and increased corrosion resistance.

Claims (1)

Verfahren zur Oberflächenvergütung von Schraubendreherklingen mit folgenden Verfahrensschritten: a) Galvanisches Vernickeln der rohen Klinge mit einer Schichtdicke von 6 bis 10 Mikrometer, b) Sandstrahlen zum Aufrauhen der Nickelschicht, c) Galvanisches Aktivieren der aufgerauhten Nickelschicht, und d) Galvanisches Verchromen der Nickelschicht mit einer Schichtdicke von 0,3 Mikrometer.Process for surface treatment of screwdriver blades with the following process steps: a) Galvanic nickel plating the raw blade with a layer thickness of 6 to 10 microns, b) Sandblasting for roughening the nickel layer, c) Galvanic Activate the roughened nickel layer, and d) Galvanic Chrome plating the nickel layer with a layer thickness of 0.3 microns.
DE10013736A 2000-03-20 2000-03-20 Method for the compensation of screwdriver blades Expired - Fee Related DE10013736B4 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE20022442U DE20022442U1 (en) 2000-03-20 2000-03-20 Tempered screwdriver blades
DE10013736A DE10013736B4 (en) 2000-03-20 2000-03-20 Method for the compensation of screwdriver blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10013736A DE10013736B4 (en) 2000-03-20 2000-03-20 Method for the compensation of screwdriver blades

Publications (2)

Publication Number Publication Date
DE10013736A1 DE10013736A1 (en) 2001-10-11
DE10013736B4 true DE10013736B4 (en) 2006-04-27

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DE10013736A Expired - Fee Related DE10013736B4 (en) 2000-03-20 2000-03-20 Method for the compensation of screwdriver blades

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DE (1) DE10013736B4 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220723A1 (en) * 1982-06-02 1983-12-08 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen METHOD FOR APPLYING A CORROSION-RESISTANT AND WEAR-RESISTANT COATING TO THE PISTON RODS OF WORK CYLINDERS, IN PARTICULAR FOR USE IN UNDERGROUND MINING AND THE LIKE.
DE3839788C1 (en) * 1988-10-20 1989-11-09 Felo Holland-Letz Gmbh & Co Kg, 3577 Neustadt, De Screwdriver blade or screwdriver insert
DE4121839A1 (en) * 1991-07-02 1993-01-07 Werner Hermann Wera Werke TOOLS WITH TORQUE-TRANSFERING WORKING SURFACES AND METHOD FOR THE PRODUCTION THEREOF
DE9306646U1 (en) * 1993-05-03 1993-07-01 Willi Hahn GmbH & Co KG, 7745 Schonach Tool blade, especially for screwdrivers
EP0608711A1 (en) * 1993-01-23 1994-08-03 Firma Robert Schröder Screwdriver blade or bit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220723A1 (en) * 1982-06-02 1983-12-08 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen METHOD FOR APPLYING A CORROSION-RESISTANT AND WEAR-RESISTANT COATING TO THE PISTON RODS OF WORK CYLINDERS, IN PARTICULAR FOR USE IN UNDERGROUND MINING AND THE LIKE.
DE3839788C1 (en) * 1988-10-20 1989-11-09 Felo Holland-Letz Gmbh & Co Kg, 3577 Neustadt, De Screwdriver blade or screwdriver insert
DE4121839A1 (en) * 1991-07-02 1993-01-07 Werner Hermann Wera Werke TOOLS WITH TORQUE-TRANSFERING WORKING SURFACES AND METHOD FOR THE PRODUCTION THEREOF
EP0608711A1 (en) * 1993-01-23 1994-08-03 Firma Robert Schröder Screwdriver blade or bit
DE9306646U1 (en) * 1993-05-03 1993-07-01 Willi Hahn GmbH & Co KG, 7745 Schonach Tool blade, especially for screwdrivers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
R.Weiner "Die galvanische Verchromung, E.G.Lenze Verlag, Saulgau. Westf., 1974, S.87-91, S.105,106 *

Also Published As

Publication number Publication date
DE10013736A1 (en) 2001-10-11

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