DE734901C - Hardening agents - Google Patents

Hardening agents

Info

Publication number
DE734901C
DE734901C DEA90806D DEA0090806D DE734901C DE 734901 C DE734901 C DE 734901C DE A90806 D DEA90806 D DE A90806D DE A0090806 D DEA0090806 D DE A0090806D DE 734901 C DE734901 C DE 734901C
Authority
DE
Germany
Prior art keywords
hardening agents
case hardening
hardening agent
peat
mixture
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
DEA90806D
Other languages
German (de)
Inventor
Josef Cigoi
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.)
ELSE ANGELKORT GEB KUHNE
Original Assignee
ELSE ANGELKORT GEB KUHNE
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 ELSE ANGELKORT GEB KUHNE filed Critical ELSE ANGELKORT GEB KUHNE
Priority to DEA90806D priority Critical patent/DE734901C/en
Application granted granted Critical
Publication of DE734901C publication Critical patent/DE734901C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C23C8/64—Carburising
    • C23C8/66—Carburising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fertilizers (AREA)

Description

Einsatzhärtemittel Die Erfindung betrifft ein Einsatzhärtemittel, das erfindungsgemäß aus einer Mischung von Hülsenfrüchteschalen, Braunkohlenstaub und Torf besteht. Als Hülsenfriüchteschalen kommen z. B. Erbsenschalen in Betracht. Dieses Einsatzhärtemittel zeichnet sich durch große Billigkeit aus, da seine Bestandteile im Inlande, und zwar zum Teil sogar als Abfälle zur Verfügung stelzen. Es hat gegenüber den bekannten Einsatzhärte-Mitteln außerdem den Vorzug einer überraschend großen Wirksamkeit. Während man bei bekannten Mitteln mit einer Einsatztiefe von o, i bis o, 5 mm j e Stunde Glühdauer rechnet, haben mit dem neuen. Mittel angestellte Versuche das erstaunliche Ergebnis gehabt, daß bereits in einer halben Stunde eine Einsatztiefe von 2 mm erreicht wurde. Infolgedessen ergibt sich eine große Ersparnis an Zeit und an Heizkosten, und es l,asse:n sich außerordentliche Vergütungs-virkungen erreichen.Case hardening agent The invention relates to a case hardening agent, according to the invention from a mixture of legume peel, lignite dust and there is peat. As legume shells come z. B. pea peels into consideration. This case hardening agent is characterized by its great cheapness, since its constituents domestically, and in some cases even available as waste. It has opposite the known case hardening agents also have the advantage of a surprisingly large one Effectiveness. While with known means with an operating depth of o, i to 0.5 mm per hour of annealing time, you have with the new one. Medium-term trials the astonishing result that already in half an hour an operational depth of 2 mm has been reached. As a result, there is a great saving in time and heating costs, and there can be extraordinary reimbursement effects.

Bei den Versuchen hat sich eine Mischung von gleichen Teilen er drei genannten Stoffe "als besonders günstig erwiesen. Doch lassen sich auch bei Verminderung des Anteils an einem der drei Stoffe noch vorteilhafte Ergebnisse erzielen, die auch dann noch die mit anderen Härtemitteln erreichbaren Wirkungen übertreffen.In the tests, a mixture of equal parts was found to be three mentioned substances "have proven to be particularly favorable the proportion of one of the three substances still achieve advantageous results that even then that effects that can be achieved with other hardening agents surpass.

Das Einsatzhärtemittel wird in der üblichen Weise angewandt, indem die zu vergütenden Gegenstände in das pulverförmige Mittel ein bepackt in einem Muftelofen bei einer Te@pe Tatur von etwa 9oo bis 950° C bis zum Erreichen der gewünschten Einsatztiefe geglülht und dann abgeschreckt werden.The case hardener is applied in the usual way by the objects to be remunerated in the powdery means packed in one Muftel furnace at a Te @ pe temperature of about 900 to 950 ° C until the desired temperature is reached Can be annealed to the operating depth and then quenched.

Claims (2)

PATENTANSPRÜCHE: I. Einsatzhärtemittel, gekennzeichnet durch eine Mischung von Hülsenfriichteschalen, Braunkohlenstaub und Torf. PATENT CLAIMS: I. Case hardening agent, characterized by a Mixture of leguminous husks, lignite dust and peat. 2. Einsatzhärtemittel nach Anspruch I. gekennzeichnet durch gleiche enteile an Hilsenfrüchteschalen, Braunkohlenstaub und Torf.2. Case hardening agent according to claim I. characterized by equal parts of green fruit shells, lignite dust and peat.
DEA90806D 1940-01-30 1940-01-30 Hardening agents Expired DE734901C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA90806D DE734901C (en) 1940-01-30 1940-01-30 Hardening agents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA90806D DE734901C (en) 1940-01-30 1940-01-30 Hardening agents

Publications (1)

Publication Number Publication Date
DE734901C true DE734901C (en) 1943-04-30

Family

ID=6950864

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA90806D Expired DE734901C (en) 1940-01-30 1940-01-30 Hardening agents

Country Status (1)

Country Link
DE (1) DE734901C (en)

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