DE436256C - Method of making cast iron hammers - Google Patents

Method of making cast iron hammers

Info

Publication number
DE436256C
DE436256C DEK95651D DEK0095651D DE436256C DE 436256 C DE436256 C DE 436256C DE K95651 D DEK95651 D DE K95651D DE K0095651 D DEK0095651 D DE K0095651D DE 436256 C DE436256 C DE 436256C
Authority
DE
Germany
Prior art keywords
hammers
cast iron
making cast
iron hammers
iron
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
DEK95651D
Other languages
German (de)
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
Publication date
Priority to DEK95651D priority Critical patent/DE436256C/en
Application granted granted Critical
Publication of DE436256C publication Critical patent/DE436256C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00Special casting characterised by the nature of the product
    • B22D25/06Special casting characterised by the nature of the product by its physical properties

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Heat Treatment Of Articles (AREA)

Description

Verfahren zur Herstellung Bußeiserner Hämmer. Bislang wurden gegossene Hämmer, und zwar besonders Schusterhämmer, in Temperguß ausgeführt, Diese Werkzeuge entsprechen, weil sie zu weich sind, den an sie zu stellenden Anforderungen nicht völlig, so daß sie keinen Ersatz der teueren Stahlhämmer bilden. Die Erfindung besteht in einem Gießverfahren, das durch die Verwendung eines weichen siliziumreichen Gußeisens und dadurch gekennzeichnet ist, daß in die Gießform an den Stellen, an welchen das Gußstück eine harte Oberflächenschicht erhalten soll, also z. B. bei einem Schusterhammer an der Bahn und an der Finne, Einlagen aus Metall, z. B. Eisen usw., haben. Diese Einlagen wirken infolge ihrer großen Wärmeaufnahme- und Leitfähigkeit in an sich bekannter Weise abschreckend auf die anliegenden Teile des Gußstückes ein und ergeben so eine genügende Härtung der Arbeitsflächen des Werkzeugs, welche es den in Temperguß hergestellten weitaus überlegen macht, während die Bearbeitungsmöglichkeit des Hammers an den Stellen, an denen das Gußstück einer Bearbeitung unterzogen werden soll, gewährleistet bleibt. Dieser Art hergestellte Hämmer bilden einen annehmbaren Ersatz der aus Stahl hergestellten teueren Werkzeuge.Method of making cast iron hammers. So far, they have been cast Hammers, especially cobblers' hammers, made of malleable cast iron, these tools because they are too soft, do not meet the requirements to be placed on them completely, so that they are no substitute for expensive steel hammers. The invention exists in a casting process that is achieved through the use of a soft, silicon-rich cast iron and is characterized in that in the mold at the points where the Casting should receive a hard surface layer, so z. B. with a cobbler hammer on the track and on the fin, metal inserts, e.g. B. iron, etc. have. These Deposits have an inherent effect due to their high heat absorption and conductivity known way a deterrent to the adjacent parts of the casting and result such a sufficient hardening of the working surfaces of the tool, which it is in malleable cast iron made far superior, while the machining ability of the hammer at the points where the casting is to be processed, remains guaranteed. Hammers made in this way make acceptable replacements of expensive tools made of steel.

Ein Ausführungsbeispiel der zur Ausübung des Verfahrens dienenden Einrichtung zur Herstellung gegossener Schusterhämmer ist in der Draufsicht abgebildet. .An embodiment of the used to carry out the method Device for the production of cast cobblers' hammers is shown in the top view. .

Mit A ist die Form für den Schusterhammer bezeichnet, dessen Bahn durch die Teilkokille b und dessen Finne durch die Teilkokille c, die beide nach Art eines Kernes eingelegt werden, begrenzt ist. Die Bemessupg der Einlegestücke wird dem gewünschten Härtegrade entsprechend gewählt.With A the shape for the cobbler hammer is designated, its path through the mold part b and its fin through the mold part c, both of which follow Kind of a core to be inserted is limited. The dimensioning of the inserts is selected according to the desired degree of hardness.

Claims (1)

PATENTANSPRUCH; Verfahren zur Herstellung Bußeiserner Hämmer, besonders Schusterhämmer, gekennzeichnet durch die Verwendung eines weichen siliziumreichen Gußeisens, das in Sandformen gegossen wird, welche an den Stellen, die beim fertigen Werkstück hart sein sollen, also an der Bahn und Finne, Metalleinlagen haben. PATENT CLAIM; Process for the production of iron hammers, especially shoemaker's hammers, characterized by the use of a soft, silicon-rich cast iron that is poured into sand molds which have metal inserts at the points that are supposed to be hard in the finished workpiece, i.e. on the track and fin.
DEK95651D Method of making cast iron hammers Expired DE436256C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK95651D DE436256C (en) Method of making cast iron hammers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK95651D DE436256C (en) Method of making cast iron hammers

Publications (1)

Publication Number Publication Date
DE436256C true DE436256C (en) 1926-10-28

Family

ID=7238168

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK95651D Expired DE436256C (en) Method of making cast iron hammers

Country Status (1)

Country Link
DE (1) DE436256C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610054A1 (en) * 1985-03-25 1986-10-02 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa LAEPP TOOL AND METHOD FOR THE PRODUCTION THEREOF

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610054A1 (en) * 1985-03-25 1986-10-02 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa LAEPP TOOL AND METHOD FOR THE PRODUCTION THEREOF

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