DE349747C - Process for removing high speed steel - Google Patents

Process for removing high speed steel

Info

Publication number
DE349747C
DE349747C DE1920349747D DE349747DD DE349747C DE 349747 C DE349747 C DE 349747C DE 1920349747 D DE1920349747 D DE 1920349747D DE 349747D D DE349747D D DE 349747DD DE 349747 C DE349747 C DE 349747C
Authority
DE
Germany
Prior art keywords
speed steel
high speed
steel
removing high
softening
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
DE1920349747D
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.)
P A VON DER CRONE FA
Original Assignee
P A VON DER CRONE FA
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 P A VON DER CRONE FA filed Critical P A VON DER CRONE FA
Application granted granted Critical
Publication of DE349747C publication Critical patent/DE349747C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Description

Verfahren zum Enthärten von Schnelldrehstahl. Gegenstand der vorliegenden Erfindung betrifft eih Verfahren zum Enthärten von Schnelldrehstahl, und besteht das Wesen der Neuerung darin, daß der Stahl, nachdem er im Glühofen auf Rotglühhitze gebracht ist, in menschliche Darmexkremente oder in eine chemische Zusammenstellung der in den menschlichen Darmexkrementen enthaltenen Bestandteile bis zum Erkalten eingesteckt wird. Das vorliegende Verfahren unterscheidet sich von dem Hauptpatent, bei welchem die zum Enthärten verwandte Substanz mit Harnexkrementen oder deren chemischen Bestandteilen vermischt war, lediglich dadurch, daß das verwandte Enthärtungsmittel nur aus menschlichen Darmexkrementen oder deren chemischen Bestandteilen besteht, die ohne Zusatz von Harnstoff zur Enthärtung benutzt werden.Process for softening high-speed steel. Subject of the present The invention relates to a method for softening high-speed steel, and consists The essence of the innovation is that the steel, after it has been red hot in the annealing furnace is brought into human intestinal excrement or in a chemical composition of the constituents contained in human intestinal excrement until they cool is plugged in. The present process differs from the main patent, in which the substance used for softening with urinary excrement or their chemical constituents was mixed, only by the fact that the softening agent used consists only of human intestinal excrement or their chemical components, which are used for softening without the addition of urea.

Das neue bisher noch nicht in seiner Verwendungsmöglichkeit für den angestrebten Zweck erkannte Enthärtungsmittel kann dabei in frischem Zustand sowohl als auch in fauliger Zersetzung begriffen zur Verwendung gebracht werden, und besteht das neue Verfahren darin, daß der Stahl auf Rotglühhitze erwärmt und dann in die menschlichen Darmexkremente oder in eine chemische Zusammensetzung der in diesen Darmexkrementen enthaltenen Bestandtejle bis zum Erkalten eingesteckt bzw. eingetaucht wird, worauf der Stahl dann eine jeder Bearbeitung zugängliche Weichheit erhält. Im wesentlichen besteht die zur Enthärtung verwandte Substanz aus Wasser, gallensauren Salzen, Schleim und Harzen, Albumin, Extraktiv Stoffen, vermengt mit natürlichen Speiseresten und Salzen und den Bestandteilen der gewöhnlichen Fäulnisprodukte organischer Körper (Buttersäure, Essigsäure) usw.The new not yet in its possible use for the The intended purpose of the softening agent can be used both in a fresh state and put into putative decomposition for use, and exists the new process is that the steel is heated to red hot heat and then in the human intestinal excrement or in a chemical composition of the in these Constituents contained in intestinal excrement are plugged in or immersed until they have cooled down whereupon the steel acquires a softness that is accessible to any machining. The substance used for softening essentially consists of water, gallic acid Salts, mucus and resins, albumin, extractive substances, mixed with natural ones Leftovers and salts and the components of common putrefaction products are organic Body (butyric acid, acetic acid) etc.

Claims (1)

PATENT-ANsPRUcH: Verfahren zum Enthärten von Schnelldrehstahl nach Patent 348486, dadurch gekennzeichnet, daß der im Glühofen o. dgl. geglühte Stahl möglichst bei Rotglühhitze ummittelbar in ein Gemisch von menschlichen Darmexkrementen oder deren chemischen Bestandteilen bis zum Erkalten eingesteckt oder eingetaucht wird.PATENT CLAIM: Process for softening high-speed steel after Patent 348486, characterized in that the steel annealed in an annealing furnace or the like If possible, in red hot heat, directly into a mixture of human intestinal excrement or their chemical components plugged in or immersed until they cool will.
DE1920349747D 1920-07-20 1920-07-20 Process for removing high speed steel Expired DE349747C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE349747T 1920-07-20

Publications (1)

Publication Number Publication Date
DE349747C true DE349747C (en) 1922-03-09

Family

ID=6258886

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920349747D Expired DE349747C (en) 1920-07-20 1920-07-20 Process for removing high speed steel

Country Status (1)

Country Link
DE (1) DE349747C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727744A1 (en) * 1976-06-23 1978-01-05 Centre Rech Metallurgique Continuous heat treatment of steel sheet - quenched in water contg. an organic acid to prevent oxidn. during quenching

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727744A1 (en) * 1976-06-23 1978-01-05 Centre Rech Metallurgique Continuous heat treatment of steel sheet - quenched in water contg. an organic acid to prevent oxidn. during quenching

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